X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=doc%2Fexamples.dox;h=ea894ca6d928891c2ac43e3a6b2881cbd3b1046c;hb=ef5382265f028057fba06442e1359eb37299a9a3;hp=5f07fb0819f45af84f968b714e5af2b96588ba4f;hpb=3784f02228b8facfc4dc81d1d72d94840e41a960;p=framework%2Fuifw%2Felementary.git diff --git a/doc/examples.dox b/doc/examples.dox index 5f07fb0..ea894ca 100644 --- a/doc/examples.dox +++ b/doc/examples.dox @@ -11,8 +11,6 @@ * * @ref actionslider_example_page * - * @ref elm_animator_example_page_01 - * * @ref transit_example_01_explained * * @ref transit_example_02_explained @@ -31,12 +29,44 @@ * * @ref calendar_example_06 * + * @ref spinner_example + * + * @ref slider_example + * + * @ref panes_example + * * @ref clock_example + * + * @ref datetime_example + * + * @ref dayselector_example + * + * @ref mapbuf_example + * @ref map_example_01 + * + * @ref map_example_02 + * + * @ref map_example_03 + * * @ref diskselector_example_01 * * @ref diskselector_example_02 * + * @ref list_example_01 + * + * @ref list_example_02 + * + * @ref list_example_03 + * + * @ref toolbar_example_01 + * + * @ref toolbar_example_02 + * + * @ref toolbar_example_03 + * + * @ref segment_control_example + * * @ref flipselector_example * * @ref fileselector_example @@ -48,6 +78,36 @@ * @ref index_example_01 * * @ref index_example_02 + * + * @ref gengrid_example + * + * @ref genlist_example_01 + * + * @ref genlist_example_02 + * + * @ref genlist_example_03 + * + * @ref genlist_example_04 + * + * @ref genlist_example_05 + * + * @ref thumb_example_01 + * + * @ref progressbar_example + * + * @ref slideshow_example + * + * @ref efl_thread_1 + * + * @ref efl_thread_2 + * + * @ref efl_thread_3 + * + * @ref efl_thread_4 + * + * @ref efl_thread_5 + * + * @ref efl_thread_6 */ /** @@ -179,7 +239,7 @@ * @until } * * The next callback will be used when setting the overlay (using - * elm_bg_overlay_set()): + * elm_object_content_set()): * * @skip _cb_overlay_changed * @until } @@ -262,14 +322,14 @@ * * @skipline elm_radio_value_set * - * Then we add a checkbox for the elm_bg_overlay_set() function: + * Then we add a checkbox for the elm_object_content_set() function for the bg: * * @skip check_add * @until evas_object_show * * Now look at the code of the @c _cb_overlay_changed again. If the checkbox * state is checked, an overlay will be added to the background. It's done by - * creating an Edje object, and setting it with elm_bg_overlay_set() to the + * creating an Edje object, and setting it with elm_object_content_set() to the * background object. For information about what are and how to set Edje * object, look at the Edje documentation. * @@ -396,92 +456,6 @@ */ /** - * @page elm_animator_example_page_01 Animator usage - * @dontinclude animator_example_01.c - * - * For this example we will be using a bit of evas, you could animate a - * elementary widget in much the same way, but to keep things simple we use - * an evas_object_rectangle. - * - * As every other example we start with our include and a simple callback to - * exit the app when the window is closed: - * @skipline #include - * @until } - * - * This next callback is the one that actually creates our animation, it - * changes the size, position and color of a rectangle given to it in @a - * data: - * @until } - * - * Next we have a callback that prints a string, nothing special: - * @until } - * - * This next callback is a little more interesting, it has a state variable - * to know if the animation is currently paused or running, and it toogles - * the state of the animation accordingly: - * @until } - * @until } - * @until } - * - * Finally we have a callback to stop the animation: - * @until } - * - * As with every example we need to do a bit of setup before we can actually - * use an animation, but for the purposes of this example that's not relevant - * so let's just skip to the good stuff, creating an animator: - * @skipline animator_add - * @note Since elm_animator is not a widget we can give it a NULL parent. - * - * Now that we have an elm_animator we set it's duration to 1 second: - * @line duration_set - * - * We would also like our animation to be reversible, so: - * @line reverse_set - * - * We also set our animation to repeat as many times as possible, which will - * mean that _end_cb will only be called after UINT_MAX * 2 seconds(UINT_MAX - * for the animation running forward and UNIT_MAX for the animation running - * backwards): - * @line repeat_set - * - * To add some fun to our animation we will use the IN_OUT curve style: - * @line curve_style - * - * To actually animate anything we need an operation callback: - * @line operation_callback - * - * Even though we set our animation to repeat for a very long time we are - * going to set a end callback to it: - * @line completion_callback - * @note Notice that stoping the animation with the stop button will not make - * _end_cb be called. - * - * Now that we have fully set up our animator we can tell it to start - * animating: - * @line animate - * - * There's a bit more of code that doesn't really matter to use so we skip - * right down to our last interesting point: - * @skipline animator_del - * @note Because we created our animator with no parent we need to delete it - * ourselves. - * - * The example should look like this: - * - * @image html screenshots/animator_example_01.png - * @image latex screenshots/animator_example_01.eps width=\textwidth - * @n - * @image html screenshots/animator_example_02.png - * @image latex screenshots/animator_example_02.eps width=\textwidth - * @n - * @image html screenshots/animator_example_03.png - * @image latex screenshots/animator_example_03.eps width=\textwidth - * - * The full source code for this example can be found @ref - * animator_example_01_c "here" - */ - -/** * @page transit_example_03_c elm_transit - Combined effects and options. * * This example shows how to apply the following transition effects: @@ -530,7 +504,7 @@ * @skip on_done * @until evas_object_resize * - * We also add a resizeable white background to use behind our animation: + * We also add a resizable white background to use behind our animation: * * @skip bg_add * @until evas_object_show @@ -580,7 +554,7 @@ * @skip on_done * @until evas_object_resize * - * We also add a resizeable white background to use behind our animation: + * We also add a resizable white background to use behind our animation: * * @skip bg_add * @until evas_object_show @@ -872,7 +846,7 @@ * callback, where we move the button doing some size hint magic. To * understand how that works better, refer to the @ref Box documentation. * Also, the first time the function is called, we change the icon in the - * middle button, using elm_button_icon_unset() first to keep the reference + * middle button, using elm_object_content_unset() first to keep the reference * to the previous one, so we don't need to recreate it when we are done * moving it. * @skip static void @@ -1144,7 +1118,7 @@ * @until elm_win_autodel * * Next a simple background is placed on our windows. More details on - * @ref bg_01_example_page: + * @ref bg_01_example_page : * @until evas_object_show(bg) * * Now, the exciting part, let's add the calendar with elm_calendar_add(), @@ -1392,6 +1366,289 @@ */ /** + * @page spinner_example Spinner widget example + * + * This code places seven Elementary spinner widgets on a window, each of + * them exemplifying a part of the widget's API. + * + * The first of them is the default spinner: + * @dontinclude spinner_example.c + * @skipline elm_spinner_add + * @until evas_object_show + * As you see, the defaults for a spinner are: + * @li no wrap + * @li min value set to 0 + * @li max value set to 100 + * @li step value set to 1 + * @li label format set to "%0.f" + * + * If another format is required, see the second spinner. It will put a text + * before and after the value, and also format value to display two decimals: + * @skipline format_set + * + * The third one will use a customized step, define new minimum and maximum + * values and enable wrap, so when value reaches minimum it jumps to maximum, + * or jumps to minimum after maximum value is reached. Format is set to display + * a decimal: + * @skipline elm_spinner_add + * @until evas_object_show + * + * The fourth uses @c vertical style, so instead of left and right arrows, + * top and bottom are displayed. Also the change interval is reduced, so + * user can change value faster. + * @skipline style + * @skipline interval + * + * In the fifth the user won't be allowed to set value directly, i.e., will + * be obligate change value only using arrows: + * @skipline editable + * + * The sixth widget will receive a lot of special values, so + * instead of reading numeric values, user will see labels for each one. + * Also direct edition is disabled, otherwise users would see the numeric + * value on edition mode. User will be able to select a month in this widget: + * @skipline elm_spinner_add + * @until evas_object_show + * + * Finally the last widget will exemplify how to listen to widget's signals, + * changed and delay,changed . First we need to + * implement callback functions that will simply print spinner's value: + * @dontinclude spinner_example.c + * @skip static + * @skip } + * @skipline static + * @until } + * @until } + * + * The first callback function should be called everytime value changes, + * the second one only after user stops to increment or decrement. Try + * to keep arrows pressed and check the difference. + * @skip smart_callback + * @skipline smart_callback + * @skipline smart_callback + * + * See the full @ref spinner_example.c "example", whose window should + * look like this picture: + * + * @image html screenshots/spinner_example.png + * @image latex screenshots/spinner_example.eps width=\textwidth + * + * See the full @ref spinner_example.c "source code" for this example. + * + * @example spinner_example.c + */ + +/** + * @page slider_example Slider widget example + * + * This code places seven Elementary slider widgets on a window, each of + * them exemplifying a part of the widget's API. + * + * The first of them is the default slider: + * @dontinclude slider_example.c + * @skipline elm_slider_add + * @until evas_object_show + * + * As you see, the defaults for a slider are: + * @li horizontal + * @li no label + * @li no values (on indicator or unit labels) + * + * Actually it's pretty useless this way. So let's learn how to improve it. + * + * If some decoration is required, a label can be set, and icon before and + * after the bar as well. On the second slider will add a @c home icon + * and a @c folder icon at @c end. + * @skipline text_set + * @until end_set + * + * If the bar size need to be changed, it can be done with span set function, + * that doesn't accounts other widget's parts size. Also the bar can starts + * with a not default value (0.0), as we done on third slider: + * @skipline value_set + * @skipline span_size_set + * + * So far, users won't be able to see the slider value. If it's required, + * it can be displayed in two different areas, units label or above + * the indicator. + * + * Let's place a units label on our widget, and also let's set minimum and + * maximum value (uses 0.0 and 1.0 by default): + * @skipline unit_format_set + * @skipline min_max_set + * + * If above the indicator is the place to display the value, just set it. + * Also, is possible to invert a bar, as you can see: + * @skipline indicator_format_set + * @skipline inverted_set + * + * But if you require to use a function a bit more customized to show the value, + * is possible to registry a callback function that will be called + * to display unit or indicator label. Only the value will be passed to this + * function, that should return a string. + * In this case, a function to free this string will be required. + * + * Let's exemplify with indicator label on our sixth slider: + * @dontinclude slider_example.c + * @skip static + * @skip } + * @skip static + * @skip } + * @skip static + * @skip } + * @skipline static + * @until } + * @until } + * + * Setting callback functions: + * @skipline indicator_format_function_set + * @skipline _indicator_free + * + * Also, a slider can be displayed vertically: + * @dontinclude slider_example.c + * @skipline elm_slider_horizontal_set + * + * Finally the last widget will exemplify how to listen to widget's signals, + * changed and delay,changed . First we need to + * implement callback functions that will simply print slider's value: + * @dontinclude slider_example.c + * @skip static + * @skip } + * @skipline static + * @until } + * @until } + * + * The first callback function should be called everytime value changes, + * the second one only after user stops to increment or decrement. Try + * to keep arrows pressed and check the difference. + * @skip smart_callback + * @skipline smart_callback + * @skipline smart_callback + * + * See the full @ref slider_example.c "example", whose window should + * look like this picture: + * + * @image html screenshots/slider_example.png + * @image latex screenshots/slider_example.eps width=\textwidth + * + * See the full @ref slider_example.c "source code" for this example. + * + * @example slider_example.c + */ + +/** + * @page panes_example Panes widget example + * + * This code places two Elementary panes widgets on a window, one of them + * displayed vertically and the other horizontally, to exemplify + * a part of the widget's API. Also, all the signals emitted by this + * widget will be covered. + * + * Let's start adding a panes to our window: + * @dontinclude panes_example.c + * @skipline elm_panes_add + * @until evas_object_show + * + * Now we will set a content (a simple button) to the left side of our + * panes widget: + * @skipline elm_button_add + * @until content_left_set + * + * The content of the right side will be something a bit more elaborated, we'll + * place another panes, displayed vertically (it's displayed horizontally + * by default): + * @skipline elm_panes_add + * @until content_right_set + * + * When populating a panes displayed vertically, remember that left content + * will be placed at top, and right content will place at bottom. Next + * we will add two buttons to exemplify that: + * @skipline elm_button_add + * @until content_right_set + * + * Panes widgets emits 4 different signals, depending on users interaction + * with the draggable bar. We'll add a callback function for each of them. + * + * "clicked" signal : + * + * Callback function that just print "Clicked" to stdin: + * @dontinclude panes_example.c + * @skip static void + * @skip } + * @skip static void + * @skip } + * @skip static void + * @skip } + * @skipline static void + * @until } + * + * Also, add callback function to the panes: + * @skipline "clicked" + * + * "press" signal : + * + * Callback function that just print "Pressed" to stdin: + * @dontinclude panes_example.c + * @skip static void + * @skip } + * @skipline static void + * @until } + * + * Also, add callback function to the panes: + * @skipline "press" + * + * Now, let's try to make our callback functions a bit more useful: + * + * "unpress" signal : + * + * Suppose we want to know the size proportion of left content after + * user drags the bar. We need to listen for @c unpress signal, and + * get this size from our panes widget. It's done on the following + * function: + * @dontinclude panes_example.c + * @skip static void + * @skip } + * @skip static void + * @skip } + * @skipline static void + * @until } + * + * Adding the callback function to the panes: + * @skipline "unpress" + + * "clicked,double" signal : + * + * Now, a interesting feature that could be addded to panes widget. + * Hide a content when user double click the draggable bar. It's done + * using a variable to store size and content left size getter and setter + * on the following function: + * @dontinclude panes_example.c + * @skipline static double + * @skip static void + * @skip } + * @skip static void + * @skip } + * @skip static void + * @skip } + * @skipline static void + * @until } + * @until } + * @until } + * + * Adding the callback function to the panes: + * @skipline "clicked,double" + * @until panes); + * + * See the full @ref panes_example.c "example", whose window should + * look like this picture: + * + * @image html screenshots/panes_example.png + * @image latex screenshots/panes_example.eps width=\textwidth + * + * @example panes_example.c + */ + +/** * @page clock_example Clock widget example * * This code places five Elementary clock widgets on a window, each of @@ -1445,131 +1702,563 @@ */ /** - * @page diskselector_example_01 Diskselector widget example - * - * This code places 4 Elementary diskselector widgets on a window, each of - * them exemplifying a part of the widget's API. - * - * All of them will have weekdays as items, since we won't focus - * on items management on this example. For an example about this subject, - * check @ref diskselector_example_02. - * - * The first of them is a default diskselector. - * @dontinclude diskselector_example_01.c - * @skipline lbl - * @until } - * @skipline elm_diskselector_add - * @until evas_object_show - * - * We are just adding the diskselector, so as you can see, defaults for it are: - * @li Only 3 items visible each time. - * @li Only 3 characters are displayed for labels on side positions. - * @li The first added item remains centeres, i.e., it's the selected item. - * - * To add items, we are just appending it on a loop, using function - * elm_diskselector_item_append(), that will be better exaplained on - * items management example. - * - * For a circular diskselector, check the second widget. A circular - * diskselector will display first item after last, and last previous to - * the first one. So, as you can see, @b Sa will appears on left side - * of selected @b Sunday. This property is set with - * elm_diskselector_round_set(). + * @page datetime_example Datetime widget example * - * Also, we decide to display only 2 character for side labels, instead of 3. - * For this we call elm_diskselector_side_label_length_set(). As result, - * we'll see @b Mo displayed instead of @b Mon, when @b Monday is on a - * side position. + * This code places three Elementary Datetime widgets on a window, each of + * them exemplifying the widget's different usage. * - * @skipline elm_diskselector_add + * The first of them is "only Date display": + * @dontinclude datetime_example.c + * @skip only DATE * @until evas_object_show * - * But so far, we are only displaying 3 items at once. If more are wanted, - * is enough to call elm_diskselector_display_item_num_set(), as you can - * see here: - * @skipline elm_diskselector_add + * For "only Time display", see the second datetime: + * @dontinclude datetime_example.c + * @skip only TIME * @until evas_object_show * - * @note You can't set less than 3 items to be displayed. + * The third one will display datetime shows both Date and Time, corresponding format will be + * taken from system @b locale. Note, besides, that the strings are different + * for different language settings. * - * Finally, if a bounce effect is required, or you would like to see - * scrollbars, it is possible. But, for default theme, diskselector - * scrollbars will be invisible anyway. - * @skipline elm_diskselector_add + * Datetime format can be programmatically set by using + * elm_datetime_format_set(): + * @dontinclude datetime_example.c + * @skip DATE and TIME * @until evas_object_show + * The default format of any locale consists: + * - Year Field + * - Month Field + * - Date Field + * - Hour Field(12hr/24hr format) + * - Minute Field + * - AM/PM (if exists). * - * See the full @ref diskselector_example_01.c "diskselector_example_01.c" - * code, whose window should look like this picture: + * This is how the example program's window looks like with the datetime widget + * showing only date, only time and both date & time: * - * @image html screenshots/diskselector_example_01.png - * @image latex screenshots/diskselector_example_01.eps width=\textwidth + * @image html screenshots/datetime_example.png + * @image latex screenshots/datetime_example.eps width=\textwidth * - * @example diskselector_example_01.c + * See the full @ref datetime_example_c "source code" for + * this example. + * + * @example datetime_example.c */ /** - * @page diskselector_example_02 Diskselector - Items management - * - * This code places a Elementary diskselector widgets on a window, - * along with some buttons trigerring actions on it (though its API). - * It covers most of Elm_Diskselector_Item functions. + * @page dayselector_example Dayselector widget example * - * On our @c main function, we are adding a default diskselector with - * 3 items. We are only setting their labels (second parameter of function - * elm_diskselector_item_append): - * @dontinclude diskselector_example_02.c - * @skipline elm_diskselector_add - * @until Item 2 + * This code places two Elementary dayselector widgets on a window, each of + * them exemplifying the different widget styles. * - * Next we are adding lots of buttons, each one for a callback function - * that will realize a task covering part of diskselector items API. - * Lets check the first one: - * @skipline elm_button_add + * The first of them is the dayselector in default style: + * @dontinclude dayselector_example.c + * @skip weekdays starting from Sunday * @until evas_object_show * - * We are labeling the button with a task description with - * elm_object_text_set() and setting a callback - * function evas_object_smart_callback_add(). - * Each callback function will have the signature: - * static void _task_cb(void *data, Evas_Object *obj, - * void *event_info) with the function name varying for each task. + * As you see, the default style displays the weekdays starting from Sunday. * - * Now let's cover all of them. + * One can select/unselect a day just by clicking on the day object. + * The selection toggles once it is being pressed. * - * Appending an item: - * @dontinclude diskselector_example_02.c - * @skipline _add_cb - * @until } * - * All items are included on diskselector after last one. You @b can't - * preprend items. + * For showing weekdays starting from Monday, see the second dayselector: + * @dontinclude dayselector_example.c + * @skip weekdays starting from Monday + * @until evas_object_show * - * The first parameter of elm_diskselector_item_append() is the diskselector - * object, that we are receiving as data on our callback function. - * The second one is a label, the string that will be placed in the center - * of our item. As we don't wan't icons or callback functions, we can - * send NULL as third, fourth and fifth parameters. * - * Appending an item with icon: - * @dontinclude diskselector_example_02.c - * @skipline _add_ic_cb - * @until } + * The following code exemplifies the selection APIs of Dayselector: + * @dontinclude dayselector_example.c + * @skip Callback function + * @until End of clicked callback * - * If an icon is required, you can pass it as third paramenter on our - * elm_diskselector_item_append() function. It will be place on the - * left side of item's label, that will be shifted to right a bit. * - * For more details about how to create icons, look for elm_icon examples. + * See the full @ref dayselector_example.c "example", whose window should + * look like this picture: * - * Appending an item with callback function for selected: - * @dontinclude diskselector_example_02.c - * @skipline _sel_cb + * @image html screenshots/dayselector_example.png + * @image latex screenshots/dayselector_example.eps width=\textwidth + * + * See the full @ref dayselector_example_c "source code" for this example. + * + * @example dayselector_example.c + */ + +/** + * @page mapbuf_example Mapbuf Widget Example + * + * This code places a Elementary mapbuf widget on a window, + * to exemplify part of the widget's API. + * + * First we'll add an window with a background and a vertical box to + * pack our interface elements: + * @dontinclude mapbuf_example.c + * @skipline win_add + * @until show(bx) + * + * Next we'll simply add the mapbuf widget to the box: + * @skipline mapbuf_add + * @until pack_end + * + * But mapbuf is a container widget, it won't do anything alone. So let's + * create a table full of icons. For that we'll loop to fill each line of each + * column. See @ref tutorial_table_01 "tutorial_table_01" + * if you don't know how to use tables: + * @skipline table_add * @until } * @until } * - * To set a callback function that will be called every time an item is - * selected, i.e., everytime the diskselector stops with this item in - * center position, just pass the function as fourth paramenter. + * Finally, setting mapbuf content: + * @skipline content_set + * @skipline show + * + * Also, would be good a horizontal box with some controls to change mapbuf + * behavior: + * @skipline box_add + * @until show + * + * By default map is disabled. So just setting content isn't enough. + * Alpha and smooth settings will be applied when map is enabled. + * So we'll add a toggle for that. Everytime the map properties + * are changed, map will need to be enabled again. So if you + * want to play a bit with our example, remember to always enable + * map again after concluding your changes. + * @skipline toggle_add + * @until show + * + * We have added a callback function to this toggle, so it will enable + * or disable map: + * @dontinclude mapbuf_example.c + * @skip static + * @skip } + * @skipline static + * @until } + * + * Let's add check boxes for alpha blending and smooth rendering: + * @skipline check_add + * @until show + * @until show + * + * By default, mapbuf would enable alpha blending and smooth rendering, + * so we need to check boxes to be consistent with its behavior. + * + * Callback functions look like the one added to the toggle. This way we + * could enable or disable the both properties: + * @dontinclude mapbuf_example.c + * @skip static + * @skip } + * @skip static + * @skip } + * @skipline static + * @until } + * @until } + * + * You'll see that disabling alpha blending will set a black rectangle below + * the icons. That's the reason you only should enable that when you're sure + * the mapbuf content is 100% solid. + * + * See @ref mapbuf_example.c "mapbuf_example.c", whose window should + * look like this picture: + * + * @image html screenshots/mapbuf_example.png + * @image latex screenshots/mapbuf_example.eps width=\textwidth + * + * @example mapbuf_example.c + */ + +/** + * @page map_example_01 Map Example - Creation and Zoom + * + * This code places a Elementary map widget on a window, + * to exemplify part of the widget's API. + * + * Let's start adding a map to our window: + * @dontinclude map_example_01.c + * @skipline elm_map_add + * @until evas_object_show + * + * It's enough to display a world map inside our window. But usually you'll + * need to let user interact with the map. We need to place some buttons, + * so the user could control the map. It's done on the followin code. + * If you don't know about boxes, or buttons, check their examples, + * @ref box_example_01 "Box Example 1" and + * @ref button_example_01 "Button Example 1". + * @skipline elm_box_add + * @until _bt_zoom_fill + * + * We are adding callback functions that will be called when the user clicks + * over these buttons. Let's study such functions, starting from the function + * that will zoom in the map: + * @dontinclude map_example_01.c + * @skipline static void + * @until } + * + * First thing done is assure zoom mode is set to manual. It's the default + * mode, but the other buttons will change this, so before setting a new + * zoom value, we need to change the zoom mode. + * + * Then, we get the current zoom value, increment that, and set the new + * value to the map. If it's bigger than max zoom value allowed, it will + * remain on the maximum allowed, nothing bad will happen. This way we + * don't need to check first if it won't be bigger than max. + * + * Zoom out function is basically the same thing, but zoom will be decremented + * instead of incremented: + * @skipline static void + * @until } + * + * The "X" button, when pressed, will call a function that will + * zoom the map until it fits + * inside the scroll frame with no pixels outside this area: + * @skipline static void + * @until } + * + * And the "#" button, will call a function that will zoom until map fills + * scroll, ensuring no pixels are left unfilled: + * @skipline static void + * @until } + * + * But we can also set map to show something different from default + * world map, changing the zoom level and region shown. Let's pick a + * wonderful city coordinates, one placed at 43 20 S, 22 90 W . + * Since map uses double variables to represent latitude and longitude, + * to represent north or east, we should represent it as positive values, + * and south or west as negative. Also, the value will be represented as + * degree.min. So, for example, our longitude 43 20 S will + * be represented + * by the value -43.20 . A zoom set to @c 12 should be enough + * to show a city. + * @skipline region_show + * @until zoom_set + * + * See @ref map_example_01.c "map_example_01.c" for full source, + * whose window should + * look like this picture: + * + * @image html screenshots/map_example_01.png + * @image latex screenshots/map_example_01.eps width=\textwidth + * + * @example map_example_01.c + */ + +/** + * @page map_example_02 Map Example - Overlay Usage + * + * This code places a Elementary map widget on a window, + * to exemplify part of the widget's API, related to overlays. + * + * We'll start this example in the same way + * @ref map_example_01 "Map Example 1". Adding a map with buttons to control + * zoom, so if you didn't read it yet, just do it now. + * @dontinclude map_example_02.c + * @skipline elm_map_add + * @until zoom_fill + * + * Overlays can be placed over the map to represent anything we want. Let's + * say we want to represent some countries and cities with overlays. + * + * Before we create city or country overlays, let's create class overlays. + * + * @skipline elm_map_overlay_class_add + * @until elm_map_overlay_icon_set + * These lines create a class overlay which represents cities. + * This class overlay will be used for grouping city overlays. + * Later city overlays in the same class are appended to this class overlay. + * if city overlays are near each other, they will be grouped. + * + * We can set the icon for the class so that the icon will be displayed + * when city overlays are grouped. + * We can set the zoom required to display the overlays that belongs + * to this class, so if the zoom is less than this value, nothing + * will be shown. + * + * Country class can be created in the same way. + * @skipline elm_map_overlay_class_add + * @until elm_map_overlay_icon_set + * + * Next we'll create some overlays representing cities and coutries. + * We set the data for the overlay so that can be used later when + * clicked callback is called. + * We'll append them into city class to be grouped. + * We'll append them in a list, to close up them later. + * To create a default overlay, we need to pass the coordinates. + * @skipline elm_map_overlay_add + * @until eina_list_append + * + * We subscribe a smart callback "overlay,clicked" to create bubble on + * the clicked overlay. + * @dontinclude map_example_02.c + * @skipline "overlay,clicked" + * + * Finally, on our @c main function, we ask the map to show all the overlays + * with the biggest zoom possible, passing the list of overlays added. + * @skipline elm_map_overlays_show + * + * We have created a specific structure for this example to store the name + * of the place and a path to a image file to represent it. + * @dontinclude map_example_02.c + * @skipline typedef + * @until Overlay_Data; + * + * We'll create instances for each place: + * @skipline argentina + * @until sky_03 + * + * To return an icon, all we need to do is to add a elm_icon and return it: + * @dontinclude map_example_02.c + * @skipline _icon_get( + * @until } + * + * For the content, let's return something more elaborate. We will return + * a box with an image representing the place, and the name of this place: + * @skipline _box_get( + * @until } + * + * See @ref map_example_02.c "map_example_02.c" for full source, + * whose window should + * look like this picture: + * + * @image html screenshots/map_example_02.png + * @image latex screenshots/map_example_02.eps width=\textwidth + * + * @example map_example_02.c + */ + +/** + * @page map_example_03 Map Example - Route and Name Usage + * + * This code places a Elementary map widget on a window, + * to exemplify part of the widget's API, related routes and names. + * + * In this example, we will suppose we need to set a route for the user + * from his current point (a gps could provide us this information) + * to somewhere else. So we would have coordinates of this + * start point, and would like that he enters the address of his + * destination in a entry, and we'll trace a route on the map. + * + * We'll start this example in the same way + * @ref map_example_01 "Map Example 1". Adding a map with buttons to control + * zoom, so if you didn't read it yet, just do it now. Actually there is + * a change, that we're aligning buttons to the top, since we wan't a + * vertical control box this time. + * @dontinclude map_example_03.c + * @skipline elm_map_add + * @until zoom_fill + * @until align_set + * + * Next we set the box to be vertical and change it's size, weight + * and alignment, so it will occupy the top of the window, from left + * to right: + * @skipline horizontal_set + * @until align_set + * + * We'll add an entry with a preliminar address, that I know will + * find a coordinate, to examplify names work. But you can try + * lots of addresses. From city or country names to pubs, or whatever + * you want. To try is enough to run the example, type the address and + * press "Route" button. This button will call a function that will + * get the typed address and find the route. + * @skipline entry_add + * @until align_set + * @until align_set + * + * The button pass an structure + * instance we make for this example, with all the fields we'll need. + * @dontinclude map_example_03.c + * @skipline _Example_Data + * @until example_data; + * + * Let's initialize it's fields: + * @skipline example_data.map + * @until example_data.start_lat + * + * @c map and @c entry are our elementary objects, @c route is set to @c NULL, + * since we don't have one yet, and the coordinates of the start point is set + * (longitude and latitude). + * + * Also, let's show this start point at the center of the map, and set a zoom + * nice enough to close it: + * @skipline region_show + * @until zoom_set + * + * These lines were already explained on @ref map_example_02 "Map Example 2". + * + * Now we'll see the "Route" button callback function: + * @dontinclude map_example_03.c + * @skip static void + * @skip } + * @skipline static void + * @until } + * + * First we get the address string from our entry. Then we use @c name + * conversion + * util functions, so we could get coordinates for this address. These + * functions return an #Elm_Map_Name handle for us. + * Function elm_map_utils_convert_name_into_coord() will do this job for us, + * but it's an assyncronous function, since it requires this + * information from the server. + * + * That's the reason we need to wait for + * "name,loaded" signal. We add a callback function for this: + * @dontinclude map_example_03.c + * @skipline static void + * @until } + * + * This function will check if a previous route was traced, and if it was, + * it will remove it. Next we'll get destination coordinates from our + * @c name, and use them to add a new route. + * + * To trace a route we need to know how the user will go through the path. + * Let's suppose he'll be walking, but doesn't like to walk, so we + * need to choose the shortest path intead of the route that would + * made him spend less time. Coordinates of the point from where he will + * start and of the destination point need to be passed as well. + * + * Finally we'll set a color different from solid red (default), to show + * our route. We set it green. + * + * See @ref map_example_03.c "map_example_03.c" for full source, + * whose window should + * look like this picture: + * + * @image html screenshots/map_example_03.png + * @image latex screenshots/map_example_03.eps width=\textwidth + * + * @example map_example_03.c + */ + +/** + * @page diskselector_example_01 Diskselector widget example + * + * This code places 4 Elementary diskselector widgets on a window, each of + * them exemplifying a part of the widget's API. + * + * All of them will have weekdays as items, since we won't focus + * on items management on this example. For an example about this subject, + * check @ref diskselector_example_02. + * + * The first of them is a default diskselector. + * @dontinclude diskselector_example_01.c + * @skipline lbl + * @until } + * @skipline elm_diskselector_add + * @until evas_object_show + * + * We are just adding the diskselector, so as you can see, defaults for it are: + * @li Only 3 items visible each time. + * @li Only 3 characters are displayed for labels on side positions. + * @li The first added item remains centeres, i.e., it's the selected item. + * + * To add items, we are just appending it on a loop, using function + * elm_diskselector_item_append(), that will be better exaplained on + * items management example. + * + * For a circular diskselector, check the second widget. A circular + * diskselector will display first item after last, and last previous to + * the first one. So, as you can see, @b Sa will appears on left side + * of selected @b Sunday. This property is set with + * elm_diskselector_round_enabled_set(). + * + * Also, we decide to display only 2 character for side labels, instead of 3. + * For this we call elm_diskselector_side_text_max_length_set(). As result, + * we'll see @b Mo displayed instead of @b Mon, when @b Monday is on a + * side position. + * + * @skipline elm_diskselector_add + * @until evas_object_show + * + * But so far, we are only displaying 3 items at once. If more are wanted, + * is enough to call elm_diskselector_display_item_num_set(), as you can + * see here: + * @skipline elm_diskselector_add + * @until evas_object_show + * + * @note You can't set less than 3 items to be displayed. + * + * You can get the number of items in the diskselector by calling + * elm_diskselector_display_item_num_get(), as you can see here: + * @skipline elm_diskselector_add + * + * Finally, if a bounce effect is required, or you would like to see + * scrollbars, it is possible. But, for default theme, diskselector + * scrollbars will be invisible anyway. + * @skipline elm_diskselector_add + * @until evas_object_show + * + * See the full @ref diskselector_example_01.c "diskselector_example_01.c" + * code, whose window should look like this picture: + * + * @image html screenshots/diskselector_example_01.png + * @image latex screenshots/diskselector_example_01.eps width=\textwidth + * + * @example diskselector_example_01.c + */ + +/** + * @page diskselector_example_02 Diskselector - Items management + * + * This code places a Elementary diskselector widgets on a window, + * along with some buttons trigerring actions on it (though its API). + * It covers most of diskselector item functions. + * + * On our @c main function, we are adding a default diskselector with + * 3 items. We are only setting their labels (second parameter of function + * elm_diskselector_item_append): + * @dontinclude diskselector_example_02.c + * @skipline elm_diskselector_add + * @until Item 2 + * + * Next we are adding lots of buttons, each one for a callback function + * that will realize a task covering part of diskselector items API. + * Lets check the first one: + * @skipline elm_button_add + * @until evas_object_show + * + * We are labeling the button with a task description with + * elm_object_text_set() and setting a callback + * function evas_object_smart_callback_add(). + * Each callback function will have the signature: + * static void _task_cb(void *data, Evas_Object *obj, + * void *event_info) with the function name varying for each task. + * + * Now let's cover all of them. + * + * Appending an item: + * @dontinclude diskselector_example_02.c + * @skipline _add_cb + * @until } + * + * All items are included on diskselector after last one. You @b can't + * preprend items. + * + * The first parameter of elm_diskselector_item_append() is the diskselector + * object, that we are receiving as data on our callback function. + * The second one is a label, the string that will be placed in the center + * of our item. As we don't wan't icons or callback functions, we can + * send NULL as third, fourth and fifth parameters. + * + * Appending an item with icon: + * @dontinclude diskselector_example_02.c + * @skipline _add_ic_cb + * @until } + * + * If an icon is required, you can pass it as third paramenter on our + * elm_diskselector_item_append() function. It will be place on the + * left side of item's label, that will be shifted to right a bit. + * + * For more details about how to create icons, look for elm_icon examples. + * + * Appending an item with callback function for selected: + * @dontinclude diskselector_example_02.c + * @skipline _sel_cb + * @until } + * @until } + * + * To set a callback function that will be called every time an item is + * selected, i.e., everytime the diskselector stops with this item in + * center position, just pass the function as fourth paramenter. * * Appending an item with callback function for selected with data: * @dontinclude diskselector_example_02.c @@ -1585,7 +2274,7 @@ * * If you want to free this data, or handle that the way you need when the * item is deleted, set a callback function for that, with - * elm_diskselector_item_del_cb_set(). + * elm_object_item_del_cb_set(). * * As you can see we check if @c it is not @c NULL after appending it. * If an error happens, we won't try to set a function for it. @@ -1596,7 +2285,7 @@ * @skipline _del_cb * @until } * - * To delete an item we simple need to call elm_diskselector_item_del() with + * To delete an item we simple need to call elm_object_item_del() with * a pointer for such item. * * If you need, you can get selected item with @@ -1653,52 +2342,522 @@ */ /** - * @page flipselector_example Flip selector widget example + * @page list_example_01 List widget example * - * This code places an Elementary flip selector widget on a window, - * along with two buttons trigerring actions on it (though its API). + * This code places a single Elementary list widgets on a window, just + * to exemplify the more simple and common use case: a list will be created + * and populated with a few items. * - * The selector is being populated with the following items: - * @dontinclude flipselector_example.c - * @skip lbl[] - * @until ; + * To keep it simple, we won't show how to customize the list, for this check + * @ref list_example_02. Also, we won't focus + * on items management on this example. For an example about this subject, + * check @ref list_example_03. * - * Next, we create it, populating it with those items and registering - * two (smart) callbacks on it: - * @dontinclude flipselector_example.c - * @skip fp = elm_flipselector_add - * @until object_show + * To add a list widget. + * @dontinclude list_example_01.c + * @skipline elm_list_add * - * Those two callbacks will take place whenever one of those smart - * events occur, and they will just print something to @c stdout: - * @dontinclude flipselector_example.c - * @skip underflow callback - * @until static void - * Flip the sheets on the widget while looking at the items list, in - * the source code, and you'll get the idea of those events. + * We are just adding the list, so as you can see, defaults for it are: + * @li Items are displayed vertically. + * @li Only one item can be selected. + * @li The list doesn't bouce. * - * The two buttons below the flip selector will take the actions - * described in their labels: - * @dontinclude flipselector_example.c - * @skip bt = elm_button_add - * @until callback_add(win + * To add items, we are just appending it on a loop, using function + * elm_list_item_append(), that will be better exaplained on + * items management example. + * @dontinclude list_example_01.c + * @skipline lbl[] + * @until }; + * @skipline for + * @skipline elm_list_item_append + * + * After we just want to show the list. But first we need to start the widget. + * It was done this way to improve widget's performance. So, always remember + * that: + * @warning Call elm_list_go before showing the object + * @skipline elm_list_go + * @skipline show * - * @dontinclude flipselector_example.c - * @skip unselect the item - * @until underflow + * See the full @ref list_example_01.c "list_example_01.c" + * code, whose window should look like this picture: * - * Click on them to exercise those flip selector API calls. To - * interact with the other parts of this API, there's a command line - * interface, whose help string can be asked for with the 'h' key: - * @dontinclude flipselector_example.c - * @skip commands - * @until ; + * @image html screenshots/list_example_01.png + * @image latex screenshots/list_example_01.eps width=\textwidth * - * The 'n' and 'p' keys will exemplify elm_flipselector_flip_next() - * and elm_flipselector_flip_prev(), respectively. 'f' and 'l' account - * for elm_flipselector_first_item_get() and - * elm_flipselector_last_item_get(), respectively. Finally, 's' will - * issue elm_flipselector_selected_item_get() on our example flip + * @example list_example_01.c + */ + +/** + * @page list_example_02 List widget example + * + * This code places a single Elementary list widgets on a window, + * exemplifying a part of the widget's API. + * + * First, we will just create a simple list, as done on @ref list_example_01 : + * @dontinclude list_example_02.c + * @skipline lbl + * @until } + * @skipline elm_list_add + * @until elm_list_item_append + * + * Now, let's customize this list a bit. First we will display items + * horizontally: + * @skipline horizontal_set + * + * Then we will choose another list mode. There are four of them, and + * the default #Elm_List_Mode is #ELM_LIST_SCROLL. Let's set compress mode: + * @skipline mode_set + * + * To enable multiple items selection, we need to enable it, since only one + * selected item is allowed by default: + * @skipline elm_list_multi_select_set + * + * We are not adding items with callback functions here, + * since we'll explain it better on @ref list_example_03. But if the callback + * need to be called everytime user clicks an item, even if already selected, + * it's required to enable this behavior: + * @skipline elm_list_always_select_mode_set + * + * Finally, if a bounce effect is required, or you would like to see + * scrollbars, it is possible. But, for default theme, list + * scrollbars will be invisible anyway. + * @skipline bounce_set + * @until SCROLLER_POLICY_ON + * + * See the full @ref list_example_02.c "list_example_02.c" + * code, whose window should look like this picture: + * + * @image html screenshots/list_example_02.png + * @image latex screenshots/list_example_02.eps width=\textwidth + * + * @example list_example_02.c + */ + +/** + * @page list_example_03 List - Items management + * + * This code places a Elementary list widgets on a window, + * along with some buttons trigerring actions on it (though its API). + * It covers most of elm_list_item functions. + * + * On our @c main function, we are adding a default list with + * 3 items. We are only setting their labels (second parameter of function + * elm_list_item_append): + * @dontinclude list_example_03.c + * @skipline elm_list_add + * @until Item 2 + * + * Next we are adding lots of buttons, each one for a callback function + * that will realize a task covering part of list items API. + * Lets check the first one: + * @skipline elm_button_add + * @until evas_object_show + * + * We are labeling the button with a task description with + * elm_object_text_set() and setting a callback + * function evas_object_smart_callback_add(). + * Each callback function will have the signature: + * static void _task_cb(void *data, Evas_Object *obj, + * void *event_info) with the function name varying for each task. + * + * Now let's cover all of them. + * + * Prepending an item: + * @dontinclude list_example_03.c + * @skipline _prepend_cb + * @until } + * + * The item will be placed on the begining of the list, + * i.e. it will be the first one. + * + * The first parameter of elm_list_item_prepend() is the list + * object, that we are receiving as data on our callback function. + * The second one is a label, the string that will be placed in the center + * of our item. As we don't wan't icons or callback functions, we can + * send NULL as third, fourth, fifth and sixth parameters. + * + * Appending an item: + * @dontinclude list_example_03.c + * @skipline _add_cb + * @until } + * + * Items included with append will be inserted inserted after the last one. + * + * Appending an item with icon: + * @dontinclude list_example_03.c + * @skipline _add_ic_cb + * @until } + * + * If an icon is required, you can pass it as third paramenter on our + * elm_list_item_append() function. It will be place on the + * left side of item's label. If an icon is wanted on the right side, + * it should be passed as fourth parameter. + * + * For more details about how to create icons, look for elm_icon examples + * @ref tutorial_icon. + * + * Appending an item with callback function for selected: + * @dontinclude list_example_03.c + * @skipline _sel_cb + * @until } + * @until } + * + * To set a callback function that will be called every time an item is + * selected, i.e., everytime the list stops with this item in + * center position, just pass the function as fifth paramenter. + * + * Appending an item with callback function for selected with data: + * @dontinclude list_example_03.c + * @skipline _sel_data_cb + * @until } + * @until } + * @until } + * @until } + * + * If the callback function request an extra data, it can be attached to our + * item passing a pointer for data as sixth parameter. + * Our function _sel_data_cb will receive it as void *data . + * + * If you want to free this data, or handle that the way you need when the + * item is deleted, set a callback function for that, with + * elm_list_item_del_cb_set(). + * + * As you can see we check if @c it is not @c NULL after appending it. + * If an error happens, we won't try to set a function for it. + * + * Deleting an item: + * @dontinclude list_example_03.c + * @skipline _del_cb( + * @until } + * + * To delete an item we simple need to call elm_object_item_del() with + * a pointer for such item. + * + * If you need, you can get selected item with + * elm_list_selected_item_get(), that will return a pointer for it. + * + * Unselecting an item: + * @dontinclude list_example_03.c + * @skipline _unselect_cb + * @until } + * + * To select an item, you should call elm_list_item_selected_set() + * passing @c EINA_TRUE, and to unselect it, @c EINA_FALSE. + * + * Printing all items: + * @dontinclude list_example_03.c + * @skipline _print_cb + * @until } + * + * Clearing the list: + * @dontinclude list_example_03.c + * @skipline _clear_cb + * @until } + * + * Selecting the next item: + * @dontinclude list_example_03.c + * @skipline _select_next_cb + * @until } + * + * Inserting after an item: + * @dontinclude list_example_03.c + * @skipline _insert_after_cb + * @until } + * + * Selecting the previous item: + * @dontinclude list_example_03.c + * @skipline _select_prev_cb + * @until } + * + * Inserting before an item: + * @dontinclude list_example_03.c + * @skipline _insert_before_cb + * @until } + * + * If a separator is required, just set an item as such: + * @dontinclude list_example_03.c + * @skipline _set_separator_cb + * @until } + * + * Also an item can be disabled, and the user won't be allowed to (un)select it: + * @dontinclude list_example_03.c + * @skipline _disable_cb + * @until } + * + * See the full @ref list_example_03.c "list_example_03.c" + * code, whose window should look like this picture: + * + * @image html screenshots/list_example_03.png + * @image latex screenshots/list_example_03.eps width=\textwidth + * + * @example list_example_03.c + */ + +/** + * @page toolbar_example_01 Toolbar Example - Simple Items + * + * This code places a Elementary toolbar widget on a window, + * to exemplify part of the widget's API. + * + * Let's start adding a button to our window, that will have its text + * modified depending on which item is selected. It's used just to exemplify + * how to change a window content from the toolbar. + * @dontinclude toolbar_example_01.c + * @skipline elm_button_add + * @until evas_object_show + * + * Also, we'll need a toolbar widget, obviously: + * @skipline elm_toolbar_add + * @until evas_object_show + * + * When appending an item is possible to set an icon, label, and a callback + * function that will receive passed data. + * @skipline _item_append + * @until Folder + * + * It's possible to disable items, so the user can't select then. We will + * disable the third item: + * @skipline _item_append + * @until disable + * + * Our callbacks will just set button's label: + * @dontinclude toolbar_example_01.c + * @skip static + * @skip } + * @skipline static + * @until } + * @until } + * @until } + * + * By default, toolbars would display items homogeneously, so item with + * long labels, like the third, will make all of them occupy a lot of space. + * To avoid that, we can disable it: + * @dontinclude toolbar_example_01.c + * @skipline homogeneous + * + * Another default behavior, is to add an menu item if we have more items + * that would fit on toolbar size. To simply enable scroll, without menus, + * it's required to change toolbar's shrink mode: + * @dontinclude toolbar_example_01.c + * @skipline shrink + * + * See @ref toolbar_example_01.c "toolbar_example_01.c", whose window should + * look like this picture: + * + * @image html screenshots/toolbar_example_01.png + * @image latex screenshots/toolbar_example_01.eps width=\textwidth + * + * @example toolbar_example_01.c + */ + +/** + * @page toolbar_example_02 Toolbar Example - Items with States + * + * This code places a Elementary toolbar widget on a window, + * to exemplify part of the widget's API. + * + * Toolbar widgets has support to items with states. Each state + * can have it's own label, icon, and callback function. + * + * Let's start populating a toolbar with some regular items. + * If you don't know how to do that, see + * @ref toolbar_example_01 "Toolbar Example 1". + * @dontinclude toolbar_example_02.c + * @skipline elm_toolbar_add + * @until Update + * + * The only difference here is that we set shrink mode to #ELM_TOOLBAR_SHRINK_HIDE, + * that won't display items that doesn't fit to the window. + * + * Now, let's add an item with states. First, add the item just as any other. + * @skipline elm_toolbar_item_append + * @until _item_pressed + * + * After that states can be added to this item: + * @skipline state_add + * @until Full + * @until _item_pressed + * + * The both states and the item are using the same callback function, + * that will cycle between states and unselect the item. Unseleting + * is required because it won't call the callback if an user clicks + * over an item already selected: + * @dontinclude toolbar_example_02.c + * @skip static + * @skip } + * @skipline static + * @until } + * + * On our example, some items are hidden + * because we set the window to be small. But if an item should be displayed + * anyway, is needed to set its priority to be higher than others. + * Any positive value will be enough in our case. Let's force the item + * with multiple states to be displayed. + * @skipline priority + * + * See @ref toolbar_example_02.c "toolbar_example_02.c", whose window should + * look like this picture: + * + * @image html screenshots/toolbar_example_02.png + * @image latex screenshots/toolbar_example_02.eps width=\textwidth + * + * @example toolbar_example_02.c + */ + +/** + * @page toolbar_example_03 Toolbar Example - Items with Menus + * + * Toolbar widgets have support to items with menus. This kind + * of item will display a menu when selected by the user. + * + * Let's start populating a toolbar with some regular items, the same + * way we started @ref toolbar_example_02 "Toolbar Example 2". + * @dontinclude toolbar_example_03.c + * @skipline elm_toolbar_add + * @until Update + * + * The only difference is that we'll keep the default shrink mode, that + * adds an item with a menu of hidden items. + * + * So, a important thing to do is to set a parent for toolbar menus, or they + * will use the toolbar as parent, and its size will be restricted to that. + * @skipline parent_set + * + * Not only items' menus will respect this parent, but also the own toolbar + * menu, used to show hidden items. + * + * Next, let's add an item set to display a menu: + * @skipline elm_toolbar_item_append + * @until _menu_set + * + * Now, to add two options to this item, we can get the menu object and use + * it as a regular elm_menu. See @ref tutorial_menu "Menu example" for more + * about menu widget. + * @skipline _menu_get + * @until Full + * + * See @ref toolbar_example_03.c "toolbar_example_03.c", whose window should + * look like this picture: + * + * @image html screenshots/toolbar_example_03.png + * @image latex screenshots/toolbar_example_03.eps width=\textwidth + * + * @example toolbar_example_03.c + */ + +/** + * @page segment_control_example Segment Control Example + * + * This code places a Elementary segment control widgets on a window, + * to exemplify part of the widget's API. + * + * Let's start adding a segment control to our window: + * @dontinclude segment_control_example.c + * @skipline elm_segment_control_add + * @until evas_object_show + * + * Now will add an item only with label: + * @skipline item_add + * + * Really simple. To add an item with only an icon, the icon needs to be created + * first, them added with this same function: + * @skipline icon_add + * @until item_add + * + * If an item with label and icon is required, it can be done as well. In this + * case, instead of a label (or icon) centered, the item will display an icon + * at left and the label at right: + * @skipline icon_add + * @until item_add + * + * But, if you need to add some items that can have or not a label, but + * want that all of them looks the same way, with icon at left, just add + * an empty string label. It's done on our example to ilustrate that: + * @skipline icon_add + * @until item_add + * + * So far, all the item were added to the last position of the widget, + * but if something different is required, it can be done using another + * insertion function. Let's suppose we want to put an item just before + * the last item: + * @skipline count + * @until insert_at + * + * There are two ways to delete items. Using the item handle, like: + * @skipline insert_at + * @until del + * + * Or using item's index: + * @skipline insert_at + * @until del_at + * + * To set properties of an item already added to the widget, you just need + * to get the item and set icon or label, as the following code shows: + * @skipline item_get + * @until label_set + * + * Finally, it's possible to select an item from the code, and also get + * the selected item. We will select the item at the center of the widget + * and print its position. + * @skipline count_get + * @until printf + * + * See the full @ref segment_control_example.c "example", whose window should + * look like this picture: + * + * @image html screenshots/segment_control_example.png + * @image latex screenshots/segment_control_example.eps width=\textwidth + * + * @example segment_control_example.c + */ + +/** + * @page flipselector_example Flip selector widget example + * + * This code places an Elementary flip selector widget on a window, + * along with two buttons trigerring actions on it (though its API). + * + * The selector is being populated with the following items: + * @dontinclude flipselector_example.c + * @skip lbl[] + * @until ; + * + * Next, we create it, populating it with those items and registering + * two (smart) callbacks on it: + * @dontinclude flipselector_example.c + * @skip fp = elm_flipselector_add + * @until object_show + * + * Those two callbacks will take place whenever one of those smart + * events occur, and they will just print something to @c stdout: + * @dontinclude flipselector_example.c + * @skip underflow callback + * @until static void + * Flip the sheets on the widget while looking at the items list, in + * the source code, and you'll get the idea of those events. + * + * The two buttons below the flip selector will take the actions + * described in their labels: + * @dontinclude flipselector_example.c + * @skip bt = elm_button_add + * @until callback_add(win + * + * @dontinclude flipselector_example.c + * @skip unselect the item + * @until underflow + * + * Click on them to exercise those flip selector API calls. To + * interact with the other parts of this API, there's a command line + * interface, whose help string can be asked for with the 'h' key: + * @dontinclude flipselector_example.c + * @skip commands + * @until ; + * + * The 'n' and 'p' keys will exemplify elm_flipselector_flip_next() + * and elm_flipselector_flip_prev(), respectively. 'f' and 'l' account + * for elm_flipselector_first_item_get() and + * elm_flipselector_last_item_get(), respectively. Finally, 's' will + * issue elm_flipselector_selected_item_get() on our example flip * selector widget. * * See the full @ref flipselector_example.c "example", whose window should @@ -1980,7 +3139,7 @@ * @until } * * This call elm_layout_data_get() is used to fetch the string based on the key, - * and elm_object_text_part_set() will set the part defined in the theme as + * and elm_object_part_text_set() will set the part defined in the theme as * "example/title" to contain this string. This key "example/title" has nothing * special. It's just an arbitrary convention that we are using in this example. * Every string in this example referencing a part of this theme will be of the @@ -2040,8 +3199,8 @@ * Finally, we have an area in this layout theme, in the bottom part of it, * reserved for adding an specific widget. Differently from the 2 parts * described until now, this one can only receive one widget with the call - * elm_layout_content_set(). If there was already an item on this specific part, - * it will be deleted (one can use elm_layout_content_unset() in order to remove + * elm_object_part_content_set() for the layout. If there was already an item on this specific part, + * it will be deleted (one can use elm_object_part_content_unset() in order to remove * it without deleting). An example of removing it without deleting, but * manually deleting this widget just after that, can be seen on the callback * for this button. Actually, the callback defined for this button will clean @@ -2053,7 +3212,7 @@ * Also notice that, for this last added button, we don't have to call * evas_object_show() on it. This is a particularity of the theme for layouts, * that will have total control over the properties like size, position, - * visibility and clipping of a widget added with elm_layout_content_set(). + * visibility and clipping of a widget added with elm_object_part_content_set(). * Again, read the Edje documentation to understand this better. * * Now we just put the code for the different callbacks specified for each kind @@ -2163,7 +3322,7 @@ * The callback for this button will check what type of signal it should send, * and then emit it. The code for this callback follows: * - * @dontinclude layout_exmaple_03.c + * @dontinclude layout_example_03.c * @skip static Eina_Bool * @until Enlarge * @until } @@ -2252,7 +3411,7 @@ * green). Our example will allow the user to choose the animation the flip * uses and to interact with it. To allow the user to choose the interaction * mode we use radio buttons, we will however not explain them, if you would - * like to know more about radio buttons see @ref radio. + * like to know more about radio buttons see @ref Radio. * * We start our example with the usual setup and then create the 2 rectangles * we will use in our flip: @@ -2350,7 +3509,7 @@ * @dontinclude image_example_01.c * * This example is as simple as possible. An image object will be added to the - * window over a white background, and set to be resizeable together with the + * window over a white background, and set to be resizable together with the * window. All the options set through the example will affect the behavior of * this image. * @@ -2369,7 +3528,7 @@ * elm_image_no_scale_set() is used just to set this value to true (we * don't want to scale our image anyway, just resize it). * - * elm_image_scale_set() is used to allow the image to be resized to a size + * elm_image_resizable_set() is used to allow the image to be resized to a size * smaller than the original one, but not to a size bigger than it. * * elm_elm_image_smooth_set() will disable the smooth scaling, so the scale @@ -2379,7 +3538,7 @@ * elm_image_orient_set() is used to flip the image around the (1, 0) (0, 1) * diagonal. * - * elm_image_aspect_ratio_retained_set() is used to keep the original aspect + * elm_image_aspect_fixed_set() is used to keep the original aspect * ratio of the image, even when the window is resized to another aspect ratio. * * elm_image_fill_outside_set() is used to ensure that the image will fill the @@ -2413,7 +3572,7 @@ * @dontinclude icon_example_01.c * * This example is as simple as possible. An icon object will be added to the - * window over a white background, and set to be resizeable together with the + * window over a white background, and set to be resizable together with the * window. All the options set through the example will affect the behavior of * this icon. * @@ -2438,7 +3597,7 @@ * elm_icon_no_scale_set() is used just to set this value to true (we * don't want to scale our icon anyway, just resize it). * - * elm_icon_scale_set() is used to allow the icon to be resized to a size + * elm_icon_resizable_set() is used to allow the icon to be resized to a size * smaller than the original one, but not to a size bigger than it. * * elm_elm_icon_smooth_set() will disable the smooth scaling, so the scale @@ -2597,7 +3756,7 @@ * @until evas_object_show * * Finally, we'll set the box as conformant's content, just like this: - * @skipline elm_conformant_content_set + * @skipline elm_object_content_set * * Compare both examples code: * @ref conformant_example_01.c "conformant_example_01.c" @@ -2646,189 +3805,2457 @@ * @skip static void * @until } * - * There, we show you that the @c event_info pointer will contain the - * item in question's data, i.e., a given list item's pointer. Because - * item data is also returned in the @c data argument on - * @c Evas_Smart_Cb functions, those two pointers must have the same - * values. On this deletion callback, we're deleting the referred list - * item too, just to exemplify that anything could be done there. + * There, we show you that the @c event_info pointer will contain the + * item in question's data, i.e., a given list item's pointer. Because + * item data is also returned in the @c data argument on + * @c Evas_Smart_Cb functions, those two pointers must have the same + * values. On this deletion callback, we're deleting the referred list + * item too, just to exemplify that anything could be done there. + * + * Next, we hook to two smart events of the index object: + * @dontinclude index_example_01.c + * @skip smart_callback_add(d.index + * @until _index_selected + * @dontinclude index_example_01.c + * @skip "delay,changed" hook + * @until } + * @until } + * + * Check that, whenever one holds the mouse pressed over a given index + * letter for some time, the list beneath it will roll down to the + * item pointed to by that index item. When one releases the mouse + * button, the second callback takes place. There, we check that the + * reported item data, on @c event_info, is the same reported by + * elm_index_item_selected_get(), which gives the last selection's + * data on the index widget. + * + * The first of the three buttons that follow will call + * elm_index_active_set(), thus showing the index automatically for + * you, if it's not already visible, what is checked with + * elm_index_active_get(). The second button will exercise @b deletion + * of index item objects, by the following code: + * @dontinclude index_example_01.c + * @skip delete an index item + * @until } + * + * It will get the last index item selected's data and find the + * respective index item handle(#Elm_Object_Item) with elm_index_item_find(). + * We need the latter to query the indexing letter string from, with + * elm_index_item_letter_get(). Next, comes the delition, itself, + * which will also trigger the @c _index_item_del callback function, + * as said above. + * + * The third button, finally, will exercise elm_index_item_clear(), + * which will delete @b all of the index's items. + * + * This is how the example program's window looks like with the index + * widget hidden: + * @image html screenshots/index_example_00.png + * @image latex screenshots/index_example_00.eps + * + * When it's shown, it's like the following figure: + * @image html screenshots/index_example_01.png + * @image latex screenshots/index_example_01.eps + * + * See the full @ref index_example_01_c "source code" for + * this example. + * + * @example index_example_01.c + */ + +/** + * @page index_example_02 Index widget example 2 + * + * This code places an Elementary index widget on a window, indexing + * grid items. The items are placed so that their labels @b don't + * follow any order, but the index itself is ordered (through + * elm_index_item_sorted_insert()). This is a complement to to @ref + * index_example_01 "the first example on indexes". + * + * Here's the list of item labels to be used on the grid (in that + * order): + * @dontinclude index_example_02.c + * @skip static const char *items + * @until }; + * + * In the interesting part of the code, here, we first instantiate the + * grid (more on grids on their examples) and, after creating our + * index, for each grid item we also create an index one to reference + * it: + * @dontinclude index_example_02.c + * @skip grid = elm_gengrid_add + * @until } + * @until smart_callback_add + * + * The order in which they'll appear in the index, though, is @b + * alphabetical, becase of elm_index_item_sorted_insert() usage + * together with the comparing function, where we take the letters of + * each index item to base our ordering on. The parameters on + * @c _index_cmp have to be declared as void pointers because of the + * @c Eina_Compare_Cb prototype requisition, but in this case we know + * they'll be index item(#Elm_Object_Item)'s: + * @dontinclude index_example_02.c + * @skip ordering alphabetically + * @until } + * + * The last interesting bit is the callback in the @c "delay,changed" + * smart event, which will bring the given grid item to the grid's + * visible area: + * @dontinclude index_example_02.c + * @skip static void + * @until } + * + * Note how the grid will move kind of randomly while you move your + * mouse pointer held over the index from top to bottom -- that's + * because of the the random order the items have in the grid itself. + * + * This is how the example program's window looks like: + * @image html screenshots/index_example_03.png + * @image latex screenshots/index_example_03.eps + * + * See the full @ref index_example.c "source code" for + * this example. + * + * @example index_example_02.c + */ + +/** + * @page tutorial_ctxpopup Ctxpopup example + * @dontinclude ctxpopup_example_01.c + * + * In this example we have a list with two items, when either item is clicked + * a ctxpopup for it will be shown. Our two ctxpopups are quite different, the + * one for the first item is a vertical and it's items contain both labels and + * icons, the one for the second item is horizontal and it's items have icons + * but not labels. + * + * We will begin examining our example code by looking at the callback we'll use + * when items in the ctxpopup are clicked. It's very simple, all it does is + * print the label present in the ctxpopup item: + * @until } + * + * Next we examine a function that creates ctxpopup items, it was created to + * avoid repeating the same code whenever we needed to add an item to our + * ctxpopup. Our function creates an icon from the standard set of icons, and + * then creates the item, with the label received as an argument. We also set + * the callback to be called when the item is clicked: + * @until } + * + * Finally we have the function that will create the ctxpopup for the first item + * in our list. This one is somewhat more complex though, so let's go through it + * in parts. First we declare our variable and add the ctxpopup: + * @until ctxpopup_add + * + * Next we create a bunch of items for our ctxpopup, marking two of them as + * disabled just so we can see what that will look like: + * @until disabled_set + * @until disabled_set + * + * Then we ask evas where the mouse pointer was so that we can have our ctxpopup + * appear in the right place, set a maximum size for the ctxpopup, move it and + * show it: + * @until show + * + * And last we mark the list item as not selected: + * @until } + * + * Our next function is the callback that will create the ctxpopup for the + * second list item, it is very similar to the previous function. A couple of + * interesting things to note is that we ask our ctxpopup to be horizontal, and + * that we pass NULL as the label for every item: + * @until } + * + * And with all of that in place we can now get to our main function where we + * create the window, the list, the list items and run the main loop: + * @until ELM_MAIN() + * + * The example will initially look like this: + * + * @image html screenshots/ctxpopup_example_01.png + * @image latex screenshots/ctxpopup_example_01.eps width=\textwidth + * + * @note This doesn't show the ctxpopup tough, since it will only appear when + * we click one of the list items. + * + * Here is what our first ctxpopup will look like: + * + * @image html screenshots/ctxpopup_example_01_a.png + * @image latex screenshots/ctxpopup_example_01_a.eps width=\textwidth + * + * And here the second ctxpopup: + * + * @image html screenshots/ctxpopup_example_01_b.png + * @image latex screenshots/ctxpopup_example_01_b.eps width=\textwidth + * + * @example ctxpopup_example_01.c + */ + +/** + * @page tutorial_separator Separator example + * @dontinclude separator_example_01.c + * + * In this example we are going to pack two rectangles in a box, and have a + * separator in the middle. + * + * So we start we the window, background, box and rectangle creation, all pretty + * normal stuff: + * @until pack_end + * + * Once we have our first rectangle in the box we create and add our separator: + * @until pack_end + * @note Since our box is in horizontal mode it's a good idea to set the + * separator to be horizontal too. + * + * And now we add our second rectangle and run the main loop: + * @until ELM_MAIN + * + * This example will look like this: + * + * @image html screenshots/separator_example_01.png + * @image latex screenshots/separator_example_01.eps width=\textwidth + * + * @example separator_example_01.c + */ + +/** + * @page tutorial_radio Radio example + * @dontinclude radio_example_01.c + * + * In this example we will create 4 radio buttons, three of them in a group and + * another one not in the group. We will also have the radios in the group + * change the value of a variable directly and have then print it when the value + * changes. The fourth button is in the example just to make clear that radios + * outside the group don't affect the group. + * + * We'll start with the usual includes: + * @until #endif + * + * And move right to declaring a static variable(the one whose value the radios + * will change): + * @until static + * + * We now need to have a window and all that good stuff to be able to place our + * radios in: + * @until show(bx) + * + * And now we create a radio button, since this is the first button in our group + * we set the group to be the radio(so we can set the other radios in the same + * group). We also set the state value of this radio to 1 and the value pointer + * to @p val, since val is @p 1 this has the additional effect of setting the + * radio value to @p 1. For this radio we choose the default home icon: + * @until show + * + * To check that our radio buttons are working we'll add a callback to the + * "changed" signal of the radio: + * @until smart_callback + * + * The creation of our second radio button is almost identical, the 2 + * differences worth noting are, the value of this radio 2 and that we add this + * radio to the group of the first radio: + * @until smart_callback + * + * For our third callback we'll omit the icon and set the value to 3, we'll also + * add it to the group of the first radio: + * @until smart_callback + * + * Our fourth callback has a value of 4, no icon and most relevantly is not a + * member of the same group as the other radios: + * @until show + * + * We finally run the main loop: + * @until ELM_MAIN + * + * And the last detail in our example is the callback that prints @p val so that + * we can see that the radios are indeed changing its value: + * @until } + * + * The example will look like this: + * + * @image html screenshots/radio_example_01.png + * @image latex screenshots/radio_example_01.eps width=\textwidth + * + * @example radio_example_01.c + */ + +/** + * @page tutorial_toggle Toggle example + * @dontinclude toggle_example_01.c + * + * In this example we'll create 2 toggle widgets. The first will have an icon + * and the state names will be the default "on"/"off", it will also change the + * value of a variable directly. The second won't have a icon, the state names + * will be "Enabled"/"Disabled", it will start "Enabled" and it won't set the + * value of a variable. + * + * We start with the usual includes and prototype for callback which will be + * implemented and detailed later on: + * @until _cb2 + * + * We then declare a static global variable(the one whose value will be changed + * by the first toggle): + * @until static + * + * We now have to create our window and all that usual stuff: + * @until show(bx) + * + * The creation of a toggle is no more complicated than that of any other + * widget: + * @until add + * + * For our first toggle we don't set the states labels so they will stay the + * default, however we do set a label for the toggle, an icon and the variable + * whose value it should change: + * @until show + * + * We also set the callback that will be called when the toggles value changes: + * @until smart_callback + * + * For our second toggle it important to note that we set the states labels, + * don't set an icon or variable, but set the initial state to + * EINA_TRUE("Enabled"): + * @until show + * + * For the second toggle we will use a different callback: + * @until smart_callback + * + * We then ask the main loop to start: + * @until ELM_MAIN + * + * The callback for our first toggle will look the value of @p val and print it: + * @until } + * + * For our second callback we need to do a little bit more, since the second + * toggle doesn't change the value of a variable we have to ask it what its + * state is: + * @until } + * + * This example will look like this: + * + * @image html screenshots/toggle_example_01.png + * @image latex screenshots/toggle_example_01.eps width=\textwidth + * + * @example toggle_example_01.c + */ + +/** + * @page tutorial_panel Panel example + * @dontinclude panel_example_01.c + * + * In this example will have 3 panels, one for each possible orientation. Two of + * our panels will start out hidden, the third will start out expanded. For each + * of the panels we will use a label as the content, it's however possible to + * have any widget(including containers) as the content of panels. + * + * We start by doing some setup, code you should be familiar with from other + * examples: + * @until show(bx) + * + * And move right to creating our first panel, for this panel we are going to + * choose the orientation as TOP and toggle it(tell it to hide itself): + * @until pack_end + * + * For the second panel we choose the RIGHT orientation and explicitly set the + * state as hidden: + * @until pack_end + * + * For our third and last panel we won't set the orientation(which means it will + * use the default: LEFT): + * @until pack_end + * + * All that is left is running the main loop: + * @until ELM_MAIN + * + * This example will look like this; + * + * @image html screenshots/panel_example_01.png + * @image latex screenshots/panel_example_01.eps width=\textwidth + * @note The buttons with arrow allow the user to hide/show the panels. + * + * @example panel_example_01.c + */ + +/** + * @page gengrid_example Gengrid widget example + * + * This application is a thorough exercise on the gengrid widget's + * API. We place an Elementary gengrid widget on a window, with + * various knobs below its viewport, each one acting on it somehow. + * + * The code's relevant part begins at the grid's creation. After + * instantiating it, we set its items sizes, so that we don't end with + * items one finger size wide, only. We're setting them to fat, 150 + * pixel wide ones, for this example. We give it some size hints, not + * to be discussed in this context and, than, we register a callback + * on one of its smart events -- the one coming each time an item gets + * doubly clicked. There, we just print the item handle's value. + * @dontinclude gengrid_example.c + * @skip grid = elm_gengrid_add + * @until evas_object_sho + * @dontinclude gengrid_example.c + * @skip item double click callback + * @until } + * + * Before we actually start to deal with the items API, let's show + * some things items will be using throughout all the code. The first + * of them is a struct to be used as item data, for all of them: + * @dontinclude gengrid_example.c + * @skip typedef struct + * @until Item; + * + * That path will be used to index an image, to be swallowed into one + * of the item's icon spots. The imagens themselves are distributed + * with Elementary: + * @dontinclude gengrid_example.c + * @skip static const char *imgs + * @until ; + * + * We also have an (unique) gengrid item class we'll be using for + * items in the example: + * @dontinclude gengrid_example.c + * @skip static Elm_Gengrid_Item_Class + * @until static Elm_Gengrid_Item_Class + * @dontinclude gengrid_example.c + * @skip item_style = + * @until _grid_del + * + * As you see, our items will follow the default theme on gengrid + * items. For the label fetching code, we return a string composed of + * the item's image path: + * @dontinclude gengrid_example.c + * @skip label fetching callback + * @until } + * + * For item icons, we'll be populating the item default theme's two + * icon spots, @c "elm.swallow.icon" and @c "elm.swallow.end". The + * former will receive one of the images in our list (in the form of + * a @ref bg_02_example_page "background"), while the latter will be + * a check widget. Note that we prevent the check to propagate click + * events, so that the user can toggle its state without messing with + * the respective item's selection in the grid: + * @dontinclude gengrid_example.c + * @skip icon fetching callback + * @until return NULL + * @until } + * + * As the default gengrid item's theme does not have parts + * implementing item states, we'll be just returning false for every + * item state: + * @dontinclude gengrid_example.c + * @skip state fetching callback + * @until } + * + * Finally, the deletion callback on gengrid items takes care of + * freeing the item's label string and its data struct: + * @dontinclude gengrid_example.c + * @skip deletion callback + * @until } + * + * Let's move to item insertion/deletion knobs, them. They are four + * buttons, above the grid's viewport, namely + * - "Append" (to append an item to the grid), + * - "Prepend" (to prepend an item to the grid), + * - "Insert before" (to insert an item before the selection, on the + * grid), + * - "Insert after" (to insert an item after the selection, on the + * grid), + * - "Clear" (to delete all items in the grid), + * - "Bring in 1st" (to make the 1st item visible, by scrolling), + * - "Show last" (to directly show the last item), + * . + * which are displaced and declared in that order. We're not dealing + * with the buttons' creation code (see @ref button_example_01 + * "a button example", for more details on it), but with their @c + * "clicked" registered callbacks. For all of them, the grid's handle + * is passed as @c data. The ones creating new items use a common + * code, which just gives a new @c Example_Item struct, with @c path + * filled with a random image in our images list: + * @dontinclude gengrid_example.c + * @skip new item with random path + * @until } + * + * Moreover, that ones will set a common function to be issued on the + * selection of the items. There, we print the item handle's value, + * along with the callback function data. The latter will be @c NULL, + * always, because it's what we pass when adding all icons. By using + * elm_object_item_data_get(), we can have the item data back and, + * with that, we're priting the item's path string. Finally, we + * exemplify elm_gengrid_item_pos_get(), printing the item's position + * in the grid: + * @dontinclude gengrid_example.c + * @skip item selection callback + * @until } + * + * The appending button will exercise elm_gengrid_item_append(), simply: + * @dontinclude gengrid_example.c + * @skip append an item + * @until } + * + * The prepending, naturally, is analogous, but exercising + * elm_gengrid_item_prepend(), on its turn. The "Insert before" one + * will expect an item to be selected in the grid, so that it will + * insert a new item just before it: + * @dontinclude gengrid_example.c + * @skip "insert before" callback + * @until } + * + * The "Insert after" is analogous, just using + * elm_gengrid_item_insert_after(), instead. The "Clear" button will, + * as expected, just issue elm_gengrid_clear(): + * @dontinclude gengrid_example.c + * @skip delete items + * @until } + * + * The "Bring in 1st" button is there exercise two gengrid functions + * -- elm_gengrid_first_item_get() and elm_gengrid_item_bring_in(). + * With the former, we get a handle to the first item and, with the + * latter, you'll see that the widget animatedly scrolls its view + * until we can see that item: + * @dontinclude gengrid_example.c + * @skip bring in 1st item + * @until } + * + * The "Show last", in its turn, will use elm_gengrid_last_item_get() + * and elm_gengrid_item_show(). The latter differs from + * elm_gengrid_item_bring_in() in that it immediately replaces the + * contents of the grid's viewport with the region containing the item + * in question: + * @dontinclude gengrid_example.c + * @skip show last item + * @until } + * + * To change the grid's cell (items) size, we've placed a spinner, + * which has the following @c "changed" smart callback: + * @dontinclude gengrid_example.c + * @skip change items' size + * @until } + * + * Experiment with it and see how the items are affected. The "Disable + * item" button will, as the name says, disable the currently selected + * item: + * @dontinclude gengrid_example.c + * @skip disable selected item + * @until } + * Note that we also make use of elm_gengrid_item_selected_set(), + * there, thus making the item unselected before we actually disable + * it. + * + * To toggle between horizontal and vertical layouting modes on the + * grid, use the "Horizontal mode" check, which will call the + * respective API function on the grid: + * @dontinclude gengrid_example.c + * @skip change layouting mode + * @until } + * + * If you toggle the check right after that one, "Always select", + * you'll notice all subsequent clicks on the @b same grid item will + * still issue the selection callback on it, what is different from + * when it's not checked. This is the + * elm_gengrid_always_select_mode_set() behavior: + * @dontinclude gengrid_example.c + * @skip "always select" callback + * @until } + * + * One more check follows, "Bouncing", which will turn on/off the + * bouncing animations on the grid, when one scrolls past its + * borders. Experiment with scrolling the grid to get the idea, having + * it turned on and off: + * @dontinclude gengrid_example.c + * @skip "bouncing mode" callback + * @until } + * + * The next two checks will affect items selection on the grid. The + * first, "Multi-selection", will make it possible to select more the + * one item on the grid. Because it wouldn't make sense to fetch for + * an unique selected item on this case, we also disable two of the + * buttons, which insert items relatively, if multi-selection is on: + * @dontinclude gengrid_example.c + * @skip multi-selection callback + * @until } + * + * Note that we also @b unselect all items in the grid, when returning + * from multi-selection mode, making use of + * elm_gengrid_item_selected_set(). + * + * The second check acting on selection, "No selection", is just what + * its name depicts -- no selection will be allowed anymore, on the + * grid, while it's on. Check it out for yourself, interacting with + * the program: + * @dontinclude gengrid_example.c + * @skip no selection callback + * @until } + * + * We have, finally, one more line of knobs, now sliders, to change + * the grids behavior. The two first will change the horizontal @b + * alignment of the whole actual grid of items within the gengrid's + * viewport: + * @dontinclude gengrid_example.c + * @skip items grid horizontal alignment change + * @until } + * + * Naturally, the vertical counterpart just issues + * elm_gengrid_align_set() changing the second alignment component, + * instead. + * + * The last slider will change the grid's page size, relative + * to its own one. Try to change those values and, one manner of + * observing the paging behavior, is to scroll softly and release the + * mouse button, with different page sizes, at different grid + * positions, while having lots of items in it -- you'll see it + * snapping to page boundaries differenty, for each configuration: + * @dontinclude gengrid_example.c + * @skip page relative size change + * @until } + * + * This is how the example program's window looks like: + * @image html screenshots/gengrid_example.png + * @image latex screenshots/gengrid_example.eps width=\textwidth + * + * Note that it starts with three items which we included at will: + * @dontinclude gengrid_example.c + * @skip _clicked(grid, + * @until _clicked(grid, + * @until _clicked(grid, + * @until _clicked(grid, + * + * See the full @ref gengrid_example_c "source code" for + * this example. + * + * @example gengrid_example.c + */ +/** + * @page entry_example_01 Entry - Example of simple editing + * + * As a general overview of @ref Entry we are going to write an, albeit simple, + * functional editor. Although intended to show how elm_entry works, this + * example also makes extensive use of several other widgets. The full code + * can be found in @ref entry_example.c "entry_example.c" and in the following + * lines we'll go through the parts especific to the @ref Entry widget. + * + * The program itself is a simple editor, with a file already set to it, that + * can be set to autosave or not and allows insertion of emoticons and some + * formatted text. As of this writing, the capabilities of format edition in + * the entry are very limited, so a lot of manual work is required to change + * the current text. + * + * In any case, the program allows some changes by using the buttons on the + * top of the window and returning focus back to the main entry afterwards. + * + * @image html screenshots/entry_example.png + * @image latex screenshots/entry_example.eps width=\textwidth + * + * We'll begin by showing a few structures used throught the program. First, + * the application owns data that holds the main window and the main entry + * where the editting happens. Then, an auxiliar structure we'll use later + * when inserting icons in our text. + * @dontinclude entry_example.c + * @skip typedef + * @until App_Inwin_Data + * + * A little convenience function will insert whatever text we need in the + * buffer at the current cursor's position and set focus back to this entry. + * This is done mostly because clicking on any button will make them steal + * focus, which makes writing text more cumbersome. + * @skip static void + * @until } + * + * One of the buttons on the top will trigger an @ref Inwin to open and show + * us several icons we can insert into the text. We'll jump over most of these + * functions, but when all the options are chosen, we insert the special + * markup text that will show the chosen icon in place. + * @skip edje_file_collection_list_free(emos) + * @skip static void + * @until evas_object_del + * @until } + * + * As can be seen in that function, the program lets us add icons to our entry + * using all the possible configurations for them. That should help to + * clarify how the different combinations work out by actually seeing them + * in action. + * + * The same popup window has a page to set the settings of the chosen icon, + * that is, the size and how the item will be placed within the line. + * + * The size is done with two entries, limitted to accept numbers and a fixed + * size of characters. Changing the value in this entries will update the icon + * size in our struct as seen in the next two callbacks. + * @skip static void + * @until } + * @until } + * + * The rest of the options are handled with radio buttons, since only one type + * of size can be used (@c size, @c absize or @c relsize) and for the vertical + * sizing it needs to choose between @c ascent and @c full. Depending on which + * is chosen, the @c item tag is formed accordingly as seen before. + * @skip static Evas_Object + * @until evas_object_show(rvascent) + * + * The first of our entries is here. There's something worth mentioning about + * the way we'll create this one. Normally, any entry regardless of whether is + * single line or not, will be set to scrollable, but in this case, since we + * are limitting how many characters can fit in them and we know we don't need + * scrolling, we are not setting this flag. This makes the entry have virtually + * no appearance on screen, other than its text. This is because an entry is + * just that, a box that holds text, and in order to have some frame around it + * or a background color, another widget needs to provide this. When an entry + * is scrollable, the same scroller used internally does this. + * We are using @ref Frame "frames" here to provide some decoration around, + * then creating our entries, set them to single line, add our two filters and + * the callback for when their value change. + * @until _height_changed_cb + * + * This function ends with the button that will finally call the item + * into our editting string. + * @until } + * + * Then we get to the format edition. Here we can add the @c bold and + * @c emphasis tags to parts of our text. There's a lot of manual work to + * know what to do here, since we are not implementing an entire state manager + * and the entry itself doesn't, yet, support all the needed capabilities to + * make this simpler. We begin by getting the format we are using in our + * function from the button pressed. + * @skip aid->naviframe = naviframe; + * @until sizeof(fmt_close) + * + * Next we need to find out if we need to insert an opening or a closing tag. + * For this, we store the current cursor position and create a selection + * from this point until the beginning of our text, and then get the selected + * text to look for any existing format tags in it. This is currently the only + * way in which we can find out what formats is being used in the entry. + * @until } + * @until } + * + * Once we know what tag to insert, we need a second check in the case it was + * a closing tag. This is because any other closing tag that comes after would + * be left dangling alone, so we need to remove it to keep the text consistent. + * @until } + * @until } + * Finally, we clear our fake selections and return the cursor back to the + * position it had at first, since there is where we want to insert our format. + * @until cursor_pos_set + * + * And finish by calling our convenience function from before, to insert the + * text at the current cursor and give focus back to the entry. + * @until } + * + * A checkbox on the top of our program tells us if the text we are editing + * will autosave or not. In it's @c "changed" callback we get the value from + * the checkbox and call the elm_entry_autosave_set() function with it. If + * autosave is set, we also call elm_entry_file_save(). This is so the internal + * timer used to periodically store to disk our changes is started. + * @skip static void + * @until } + * + * Two more functions to show some cursor playing. Whenever we double click + * anywhere on our entry, we'll find what word is the cursor placed at and + * select it. Likewise, for triple clicking, we select the entire line. + * @skip static void + * @until _edit_tplclick_cb + * @until } + * + * And finally, the main window of the program contains the entry where we + * do all the edition and some helping widgets to change format, add icons + * or change the autosave flag. + * @skip elm_exit + * @skip int + * @until _image_insert_cb + * + * And the main entry of the program. Set to scroll, by default we disable + * autosave and we'll begin with a file set to it because no file selector + * is being used here. The file is loaded with #ELM_TEXT_FORMAT_MARKUP_UTF8 + * so that any format contained in it is interpreted, otherwise the entry + * would load it as just text, escaping any tags found and no format or icons + * would be shown. Then we connect to the double and triple click signals + * and set focus on the entry so we can start typing right away. + * @until ELM_MAIN + * + * @example entry_example.c + */ + +/** + * @page genlist_example_01 Genlist - basic usage + * + * This example creates a simple genlist with a small number of items and + * a callback that is called whenever an item is selected. All the properties of + * this genlist are the default ones. The full code for this example can be seen + * at @ref genlist_example_01_c. + * + * For the simplest list that you plan to create, it's necessary to define some + * of the basic functions that are used for creating each list item, and + * associating them with the "item class" for that list. The item class is just + * an struct that contains pointers to the specific list item functions that are + * common to all the items of the list. + * + * Let's show it by example. Our item class is declared globally and static as + * it will be the only item class that we need (we are just creating one list): + * + * @dontinclude genlist_example_01.c + * @skip static Elm_Genlist + * @until static Elm_Genlist + * + * This item class will be used for every item that we create. The only + * functions that we are going to set are @c label_get and @c icon_get. As the + * name suggests, they are used by the genlist to generate the label for the + * respective item, and to generate icon(s) to it too. Both the label and icon + * get functions can be called more than once for each item, with different @c + * part parameters, which represent where in the theme of the item that label or + * icon is going to be set. + * + * The default theme for the genlist contains only one area for label, and two + * areas for icon ("elm.swallow.icon" and "elm.swallow.end"). Since we just want + * to set the first icon (that will be at the left side of the label), we + * compare the part name given with "elm.swallow.icon". Notice that the + * @c label_get function must return a strduped string, that will be freed later + * automatically by the list. Here's the code for @c label_get and @c icon_get: + * + * @until static void + * + * We will also provide a function that will be called whenever an item is + * selected in the genlist. However, this function is not part of the item + * class, it will be passed for each item being added to the genlist explicitly. + * Notice the similarity of the function signature with those used by @c + * evas_object_smart_callback_add: + * + * @until } + * + * Now let's show the code used for really creating the list. Skipping + * boilerplate code used for creating a window and background, the first piece + * of code specific to our genlist example is setting the pointer functions of + * the item class to our above defined functions: + * + * @skip _itc + * @until func.del + * + * Notice that we also choose to use the "default" style for our genlist items. + * Another interesting point is that @c state_get and @c del are set to @c NULL, + * since we don't need these functions now. @c del doesn't need to be used + * because we don't add any data that must be freed to our items, and @c + * state_get is also not used since all of our items are the same and don't need + * to have different states to be used for each item. Finally we create our + * list: + * + * @until genlist_add + * + * Now we append several items to the list, and for all of them we need to give + * the list pointer, a pointer to the item class, the data that will be used + * with that item, a pointer to the parent of this item if it is in a group type + * list (this is not the case so we pass @c NULL), possible flags for this item, + * the callback for when the item is selected, and the data pointer that will be + * given to the selected callback. + * + * @until } + * + * The rest of the code is also common to all the other examples, so it will be + * omitted here (look at the full source code link above if you need it). + * + * You can try to play with this example, and see the selected callback being + * called whenever an item is clicked. It also already has some features enabled + * by default, like vertical bounce animation when reaching the end of the list, + * automatically visible/invisible scrollbar, etc. Look at the @ref + * genlist_example_02 to see an example of setting these properties to the list. + * + * The current example will look like this when running: + * + * @image html screenshots/genlist_example_01.png + * @image latex screenshots/genlist_example_01.eps width=\textwidth + */ + +/** + * @page genlist_example_02 Genlist - list setup functions + * + * This example is very similar to the @ref genlist_example_01, but it fetch + * most of the properties of the genlist and displays them on startup (thus + * getting the default value for them) and then set them to some other values, + * to show how to use that API. The full source code is at @ref + * genlist_example_02_c. + * + * Considering that the base code for instantiating a genlist was already + * described in the previous example, we are going to focus on the new code. + * + * Just a small difference for the @c _item_label_get function, we are going to + * store the time that this function was called. This is the "realized" time, + * the time when the visual representation of this item was created. This is the + * code for the @c label_get function: + * + * @dontinclude genlist_example_02.c + * @skip static char + * @until return strdup + * + * Now let's go to the list creation and setup. First, just after creating the + * list, we get most of the default properties from it, and print them on the + * console: + * + * @skip genlist_add + * @until printf("\n") + * + * We are going to change some of the properties of our list. + * + * There's no need to call the selected callback at every click, just when the + * selected item changes, thus we call elm_genlist_always_select_mode_set() with + * false. + * + * For this list we don't want bounce animations at all, so we set both the + * horizontal bounce and the vertical bounce to false with + * elm_genlist_bounce_set(). + * + * We also want our list to compress items if they are wider than the list + * width (thus we call elm_genlist_mode_set(obj, ELM_LIST_COMPRESS). + * + * The items have different width, so they are not homogeneous: + * elm_genlist_homogeneous_set() is set to false. + * + * Since the compress mode is active, the call to + * elm_genlist_mode_set() doesn't make difference, but the current + * option would make the list to have at least the width of the largest item. + * + * This list will support multiple selection, so we call + * elm_genlist_multi_select_set() on it. + * + * The option elm_genlist_height_for_width_mode_set() would allow text block to + * wrap lines if the Edje part is configured with "text.min: 0 1", for example. + * But since we are compressing the elements to the width of the list, this + * option wouldn't take any effect. + * + * We want the vertical scrollbar to be always displayed, and the orizontal one + * to never be displayed, and set this with elm_genlist_scroller_policy_set(). + * + * The timeout to consider a longpress is set to half of a second with + * elm_genlist_longpress_timeout_set(). + * + * We also change the block count to a smaller value, but that should have not + * impact on performance since the number of visible items is too small. We just + * increase the granularity of the block count (setting it to have at most 4 + * items). + * + * @until block_count_set + * + * Now let's add elements to the list: + * + * @until item_append + * @until } + * + * It's exactly the same as the previous example. The difference is on the + * behavior of the list, if you try to scroll, select items and so. + * + * In this example we also need two buttons. One of them, when clicked, will + * display several status info about the current selection, the "realized" + * items, the item in the middle of the screen, and the current mode and active + * item of that mode for the genlist. + * + * The other button will ask the genlist to "realize" again the items already + * "realized", so their respective label_get and icon_get functions will be + * called again. + * + * These are the callbacks for both of these buttons: + * + * @dontinclude genlist_example_02.c + * @skip item_sel_cb + * @skip static + * @until } + * @until } + * + * Try to scroll, select some items and click on the "Show status" button. + * You'll notice that not all items of the list are "realized", thus consuming + * just a small amount of memory. The selected items are listed in the order + * that they were selected, and the current selected item printed using + * elm_genlist_selected_item_get() is the first selected item of the multiple + * selection. + * + * Now resize the window so that you can see the "realized time" of some items. + * This is the time of when the label_get function was called. If you click on + * the "Realize" button, all the already realized items will be rebuilt, so the + * time will be updated for all of them. + * + * The current example will look like this when running: + * + * @image html screenshots/genlist_example_02.png + * @image latex screenshots/genlist_example_02.eps width=\textwidth + */ + +/** + * @page genlist_example_03 Genlist - different width options + * + * This example doesn't present any other feature that is not already present in + * the other examples, but visually shows the difference between using the + * default list options (first list of the example), setting the horizontal mode + * to #ELM_LIST_LIMIT (second list), enabling compress mode (third list) and + * using height_for_width option (fourth list). + * + * The full code for this example is listed below: + * + * @include genlist_example_03.c + * + * And the screenshot of the running example: + * + * @image html screenshots/genlist_example_03.png + * @image latex screenshots/genlist_example_03.eps width=\textwidth + * + * @example genlist_example_03.c + */ + +/** + * @page genlist_example_04 Genlist - items manipulation + * + * This example is also similar ot the @ref genlist_example_01, but it + * demonstrates most of the item manipulation functions. See the full source + * code at @ref genlist_example_04_c. + * + * In this example, we also will use the concept of creating groups of items in + * the genlist. Each group of items is composed by a parent item (which will be + * the index of the group) and several children of this item. Thus, for the + * children, we declare a normal item class. But we also are going to declare a + * different item class for the group index (which in practice is another type + * of item in the genlist): + * + * @dontinclude genlist_example_04.c + * @skip _item_sel_cb + * @skip static + * @until } + * @until } + * + * We will add buttons to the window, where each button provides one + * functionality of the genlist item API. Each button will have a callback + * attached, that will really execute this functionality. An example of these + * callbacks is the next one, for the elm_genlist_item_insert_after() function: + * + * @skip insert_before_cb + * @skip static + * @until } + * + * If you want ot see the other button functions, look at the full source code + * link above. + * + * Each button will be created with a function that already creates the button, + * add it to an elementary box, and attach the specified callback. This is the + * function that does it: + * + * @skip genlist_item_update + * @skip static + * @until } + * + * In our @c elm_main function, besides the code for setting up the window, box + * and background, we also initialize our two item classes: + * + * @skip _itc.item_style + * @until _itc_group.func.del + * + * This example uses a different style for the items, the @a double_label, which + * provides a text field for the item text, and another text field for a subtext. + * + * For the group index we use the @a group_index style, which provides a + * different appearance, helping to identify the end of a group and beginning of + * another one. + * + * Now, after the code for creating the list, setting up the box and other + * stuff, let's add the buttons with their respective callbacks: + * + * @skip _button_add + * @until bt_top_show + * + * The main code for adding items to the list is a bit more complex than the one + * from the previous examples. We check if each item is multiple of 7, and if + * so, they are group indexes (thus each group has 6 elements by default, in + * this example): + * + * @skip for + * @until } + * @until } + * + * Then we also check for specific items, and add callbacks to them on the + * respective buttons, so we can show, bring in, etc.: + * + * @until } + * @until } + * + * Once you understand the code from the @ref genlist_example_01, it should be + * easy to understand this one too. Look at the full code, and also try to play + * a bit with the buttons, adding items, bringing them to the viewport, and so. + * + * The example will look like this when running: + * + * @image html screenshots/genlist_example_04.png + * @image latex screenshots/genlist_example_04.eps width=\textwidth + */ + +/** + * @page genlist_example_05 Genlist - working with subitems + * + * This is probably the most complex example of elementary @ref Genlist. We + * create a tree of items, using the subitems properties of the items, and keep + * it in memory to be able to expand/hide subitems of an item. The full source + * code can be found at @ref genlist_example_05_c + * + * The main point is the way that Genlist manages subitems. Clicking on an + * item's button to expand it won't really show its children. It will only + * generate the "expand,request" signal, and the expansion must be done + * manually. + * + * In this example we want to be able to add items as subitems of another item. + * If an item has any child, it must be displayed using a parent class, + * otherwise it will use the normal item class. + * + * It will be possible to delete items too. Once a tree is constructed (with + * subitems of subitems), and the user clicks on the first parent (root of the + * tree), the entire subtree must be hidden. However, just calling + * elm_genlist_item_expanded_set(item, EINA_FALSE) won't hide them. The only + * thing that happens is that the parent item will change its appearance to + * represent that it's contracted. And the signal "contracted" will be emitted + * from the genlist. Thus, we must call elm_genlist_item_subitems_clear() to + * delete all its subitems, but still keep a way to recreate them when expanding + * the parent again. That's why we are going to keep a node struct for each + * item, that will be the data of the item, with the following information: + * + * @dontinclude genlist_example_05.c + * @skip typedef + * @until } + * + * This @c Node_Data contains the value for the item, a number indicating its + * level under the tree, a list of children (to be able to expand it later) and + * a boolean indicating if it's a favorite item or not. + * + * We use 3 different item classes in this example: + * + * One for items that don't have children: + * + * @skip nitems + * @skip static + * @until } + * @until } + * + * One for items that have children: + * + * @skip item_sel + * @skip static + * @until } + * @until } + * + * And one for items that were favorited: + * + * @skip static + * @until } + * @until } + * + * The favorite item class is there just to demonstrate the + * elm_genlist_item_item_class_update() function in action. It would be much + * simpler to implement the favorite behavior by just changing the icon inside + * the icon_get functions when the @c favorite boolean is activated. + * + * Now we are going to declare the callbacks for the buttons that add, delete + * and change items. + * + * First, a button for appending items to the list: + * + * @until item_append + * @until } + * + * If an item is selected, a new item will be appended to the same level of that + * item, but using the selected item's parent as its parent too. If no item is + * selected, the new item will be appended to the root of the tree. + * + * Then the callback for marking an item as favorite: + * + * @until elm_genlist_item_update + * @until } + * + * This callback is very simple, it just changes the item class of the selected + * item for the "favorite" one, or go back to the "item" or "parent" class + * depending on that item having children or not. + * + * Now, the most complex operation (adding a child to an item): + * + * @until elm_genlist_item_update + * @until } + * + * This function gets the data of the selected item, create a new data (for the + * item being added), and appends it to the children list of the selected item. + * + * Then we must check if the selected item (let's call it @c item1 now) to which + * the new item (called @c item2 from now on) was already a parent item too + * (using the parent item class) or just a normal item (using the default item + * class). In the first case, we just have to append the item to the end of the + * @c item1 children list. + * + * However, if the @c item1 didn't have any child previously, we have to change + * it to a parent item now. It would be easy to just change its item class to + * the parent type, but there's no way to change the item flags and make it be + * of the type #ELM_GENLIST_ITEM_TREE. Thus, we have to delete it and create + * a new item, and add this new item to the same position that the deleted one + * was. That's the reason of the checks inside the bigger @c if. + * + * After adding the item to the newly converted parent, we set it to not + * expanded (since we don't want to show the added item immediately) and select + * it again, since the original item was deleted and no item is selected at the + * moment. + * + * Finally, let's show the callback for deleting items: + * + * @until elm_genlist_item_update + * @until } + * + * Since we have an iternal list representing each element of our tree, once we + * delete an item we have to go deleting each child of that item, in our + * internal list. That's why we have the function @c _clear_list, which + * recursively goes freeing all the item data. + * + * This is necessary because only when we really want to delete the item is when + * we need to delete the item data. When we are just contracting the item, we + * need to hide the children by deleting them, but keeping the item data. + * + * Now there are two callbacks that will be called whenever the user clicks on + * the expand/contract icon of the item. They will just request to items to be + * contracted or expanded: + * + * @until elm_genlist_item_expanded_set( + * @until elm_genlist_item_expanded_set( + * @until } + * + * When the elm_genlist_item_expanded_set() function is called with @c + * EINA_TRUE, the @c _expanded_cb will be called. And when this happens, the + * subtree of that item must be recreated again. This is done using the internal + * list stored as item data for each item. The function code follows: + * + * @until } + * + * Each appended item is set to contracted, so we don't have to deal with + * checking if the item was contracted or expanded before its parent being + * contracted. It could be easily implemented, though, by adding a flag expanded + * inside the item data. + * + * Now, the @c _contracted_cb, which is much simpler: + * + * @until } + * + * We just have to call elm_genlist_item_subitems_clear(), that will take care + * of deleting every item, and keep the item data still stored (since we don't + * have any del function set on any of our item classes). + * + * Finally, the code inside @c elm_main is very similar to the other examples: + * + * @skip elm_main + * @until ELM_MAIN + * + * The example will look like this when running: + * + * @image html screenshots/genlist_example_05.png + * @image latex screenshots/genlist_example_05.eps width=\textwidth + */ + +/** + * @page thumb_example_01 Thumb - generating thumbnails. + * + * This example shows how to create a simple thumbnail object with Elementary. + * The full source code can be found at @ref thumb_example_01_c + * + * Everything is very simple. First we need to tell elementary that we need + * Ethumb to generate the thumbnails: + * + * @dontinclude thumb_example_01.c + * @skipline elm_need_ethumb + * + * Then, after creating the window and background, we setup our client to + * generate images of 160x160: + * + * @skip client_get + * @until size_set + * + * After that, we can start creating thumbnail objects. They are very similar to + * image or icon objects: + * + * @until thumb_reload + * + * As you can see, the main different function here is elm_thumb_reload(), which + * will check if the options of the Ethumb client have changed. If so, it will + * re-generate the thumbnail, and show the new one. + * + * Notice in this example that the thumbnail object is displayed on the size of + * the window (320x320 pixels), but the thumbnail generated and stored has size + * 160x160 pixels. That's why the picture seems upscaled. + * + * Ideally, you will be generating thumbnails with the size that you will be + * using them. + * + * The example will look like this when running: + * + * @image html screenshots/thumb_example_01.png + * @image latex screenshots/thumb_example_01.eps width=\textwidth + */ + +/** + * @page progressbar_example Progress bar widget example + * + * This application is a thorough example of the progress bar widget, + * consisting of a window with varios progress bars, each with a given + * look/style one can give to those widgets. With two auxiliary + * buttons, one can start or stop a timer which will fill in the bars + * in synchrony, simulating an underlying task being completed. + * + * We create @b seven progress bars, being three of them horizontal, + * three vertical and a final one under the "wheel" alternate style. + * + * For the first one, we add a progress bar on total pristine state, + * with no other call than the elm_progressbar_add() one: + * @dontinclude progressbar_example.c + * @skip pb with no label + * @until pb1 + * See, than, that the defaults of a progress bar are: + * - no primary label shown, + * - unit label set to @c "%.0f %%", + * - no icon set + * + * The second progress bar is given a primary label, "Infinite + * bounce", and, besides, it's set to @b pulse. See how, after one + * starts the progress timer, with the "Start" button, it animates + * differently than the previous one. It won't account for the + * progress, itself, and just dumbly animate a small bar within its + * bar region. + * @dontinclude progressbar_example.c + * @skip pb with label + * @until pb2 + * + * Next, comes a progress bar with an @b icon, a primary label and a + * @b custom unit label set. It's also made to grow its bar in an + * @b inverted manner, so check that out during the timer's progression: + * @dontinclude progressbar_example.c + * @skip ic1 = + * @until pb3 + * Another important thing in this one is the call to + * elm_progressbar_span_size_set() -- this is how we forcefully set a + * minimum horizontal size to our whole window! We're not resizing it + * manually, as you can see in the @ref progressbar_example_c + * "complete code". + * + * The next three progress bars are just variants on the ones already + * shown, but now all being @b vertical. Another time we use one of + * than to give the window a minimum vertical size, with + * elm_progressbar_span_size_set(). To demonstrate this trick once + * more, the fifth one, which is also set to pulse, has a smaller + * hardcoded span size: + * @dontinclude progressbar_example.c + * @skip vertical pb, with pulse + * @until pb5 + * + * We end the widget demonstration by showing a progress bar with the + * special @b "wheel" progress bar style. One does @b not need to set + * it to pulse, with elm_progressbar_pulse_set(), explicitly, because + * its theme does not take it in account: + * @dontinclude progressbar_example.c + * @skip "wheel" + * @until pb7 + * + * The two buttons exercising the bars, the facto, follow: + * @dontinclude progressbar_example.c + * @skip elm_button_add + * @until evas_object_show(bt) + * @until evas_object_show(bt) + * + * The first of the callbacks will, for the progress bars set to + * pulse, start the pulsing animation at that time. For the others, a + * timer callback will take care of updating the values: + * @dontinclude progressbar_example.c + * @skip static Eina_Bool + * @until } + * @until } + * @until } + * + * Finally, the callback to stop the progress timer will stop the + * pulsing on the pulsing progress bars and, for the others, to delete + * the timer which was acting on their values: + * @dontinclude progressbar_example.c + * @skip end of show + * @until } + * @until } + * + * This is how the example program's window looks like: + * @image html screenshots/progressbar_example.png + * @image latex screenshots/progressbar_example.eps width=\textwidth + * + * See the full @ref progressbar_example_c "source code" for + * this example. + * + * @example progressbar_example.c + */ + +/** + * @page tutorial_notify Notify example + * @dontinclude notify_example_01.c + * + * In this example we will have 3 notifys in 3 different positions. The first of + * which will dissapear after 5 seconds or when a click outside it occurs, the + * second and third will not dissapear and differ from each other only in + * position. + * + * We start our example with the usual stuff you've seen in other examples: + * @until show(bx) + * + * We now create a label to use as the content of our first notify: + * @until show + * + * Having the label we move to creating our notify, telling it to block events, + * setting its timeout(to autohide it): + * @until pack_end + * + * To have the notify dissapear when a click outside its area occur we have to + * listen to its "block,clicked" signal: + * @until smart_callback + * + * Our callback will look like this: + * @skip static + * @until } + * @dontinclude notify_example_01.c + * + * Next we create another label and another notify. Note, however, that this + * time we don't set a timeout and don't have it block events. What we do is set + * the orient so that this notify will appear in the bottom of its parent: + * @skip smart_callback + * @skip content + * @until pack_end + * + * For our third notify the only change is the orient which is now center: + * @until pack_end + * + * Now we tell the main loop to run: + * @until ELM_MAIN + * + * Our example will initially look like this: + * + * @image html screenshots/notify_example_01.png + * @image latex screenshots/notify_example_01.eps width=\textwidth + * + * Once the first notify is hidden: + * + * @image html screenshots/notify_example_01_a.png + * @image latex screenshots/notify_example_01_a.eps width=\textwidth + * + * @example notify_example_01.c + */ + +/** + * @page popup_example_01_c popup_example_01.c + * @include popup_example_01.c + * + * This example will initially look like this: + * + * @image html screenshots/popup_example_01.png + * @image latex screenshots/popup_example_01.eps width=\textwidth + * + * Once the popup is hidden after timeout: + * + * @image html screenshots/popup_example_01_a.png + * @image latex screenshots/popup_example_01_a.eps width=\textwidth + * + * @example popup_example_01.c + */ + + /** @page popup_example_02_c popup_example_02.c + * @include popup_example_02.c + * + * This example will look like this: + * + * @image html screenshots/popup_example_02.png + * @image latex screenshots/popup_example_02.eps width=\textwidth + * + * @example popup_example_02.c + */ + +/** + * @page popup_example_03_c popup_example_03.c + * @include popup_example_03.c + * + * This example will look like this: + * + * @image html screenshots/popup_example_03.png + * @image latex screenshots/popup_example_03.eps width=\textwidth + * + * @example popup_example_03.c + */ + +/** + * @page tutorial_frame Frame example + * @dontinclude frame_example_01.c + * + * In this example we are going to create 4 Frames with different styles and + * add a rectangle of different color in each. + * + * We start we the usual setup code: + * @until show(bg) + * + * And then create one rectangle: + * @until show + * + * To add it in our first frame, which since it doesn't have it's style + * specifically set uses the default style: + * @until show + * + * And then create another rectangle: + * @until show + * + * To add it in our second frame, which uses the "pad_small" style, note that + * even tough we are setting a text for this frame it won't be show, only the + * default style shows the Frame's title: + * @until show + * @note The "pad_small", "pad_medium", "pad_large" and "pad_huge" styles are + * very similar, their only difference is the size of the empty area around + * the content of the frame. + * + * And then create yet another rectangle: + * @until show + * + * To add it in our third frame, which uses the "outdent_top" style, note + * that even tough we are setting a text for this frame it won't be show, + * only the default style shows the Frame's title: + * @until show + * + * And then create one last rectangle: + * @until show + * + * To add it in our fourth and final frame, which uses the "outdent_bottom" + * style, note that even tough we are setting a text for this frame it won't + * be show, only the default style shows the Frame's title: + * @until show + * + * And now we are left with just some more setup code: + * @until ELM_MAIN() + * + * Our example will look like this: + * + * @image html screenshots/frame_example_01.png + * @image latex screenshots/frame_example_01.eps width=\textwidth + * + * @example frame_example_01.c + */ + +/** + * @page tutorial_anchorblock_example Anchorblock/Anchorview example + * This example will show both Anchorblock and @ref Anchorview, + * since both are very similar and it's easier to show them once and side + * by side, so the difference is more clear. + * + * We'll show the relevant snippets of the code here, but the full example + * can be found here... sorry, @ref anchorblock_example_01.c "here". + * + * As for the actual example, it's just a simple window with an anchorblock + * and an anchorview, both containing the same text. After including + * Elementary.h and declaring some functions we'll need, we jump to our + * elm_main (see ELM_MAIN) and create our window. + * @dontinclude anchorblock_example_01.c + * @skip int + * @until const char + * @until ; + * + * With the needed variables declared, we'll create the window and a box to + * hold our widgets, but we don't need to go through that here. + * + * In order to make clear where the anchorblock ends and the anchorview + * begins, they'll be each inside a @ref Frame. After creating the frame, + * the anchorblock follows. + * @skip elm_frame_add + * @until elm_frame_content_set + * + * Nothing out of the ordinary there. What's worth mentioning is the call + * to elm_anchorblock_hover_parent_set(). We are telling our widget that + * when an anchor is clicked, the hover for the popup will cover the entire + * window. This affects the area that will be obscured by the hover and + * where clicking will dismiss it, as well as the calculations it does to + * inform the best locations where to insert the popups content. + * Other than that, the code is pretty standard. We also need to set our + * callback for when an anchor is clicked, since it's our task to populate + * the popup. There's no default for it. + * + * The anchorview is no different, we only change a few things so it looks + * different. + * @until elm_frame_content_set + * + * Then we run, so stuff works and close our main function in the usual way. + * @until ELM_MAIN + * + * Now, a little note. Normally you would use either one of anchorblock or + * anchorview, set your one callback to clicks and do your stuff in there. + * In this example, however, there are a few tricks to make it easier to + * show both widgets in one go (and to save me some typing). So we have + * two callbacks, one per widget, that will call a common function to do + * the rest. The trick is using ::Elm_Entry_Anchorblock_Info for the + * anchorview too, since both are equal, and passing a callback to use + * for our buttons to end the hover, because each widget has a different + * function for it. + * @until _anchorview_clicked_cb + * @until } + * + * The meat of our popup is in the following function. We check what kind + * of menu we need to show, based on the name set to the anchor in the + * markup text. If there's no type (something went wrong, no valid contact + * in the address list) we are just putting a button that does nothing, but + * it's perfectly reasonable to just end the hover and call it quits. + * + * Our popup will consist of one main button in the middle of our hover, + * and possibly a secondary button and a list of other options. We'll create + * first our main button and check what kind of popup we need afterwards. + * @skip static void + * @skip static void + * @until eina_stringshare_add + * @until } + * + * Each button has two callbacks, one is our hack to close the hover + * properly based on which widget it belongs to, the other a simple + * printf that will show the action with the anchors own data. This is + * not how you would usually do it. Instead, the common case is to have + * one callback for the button that will know which function to call to end + * things, but since we are doing it this way it's worth noting that + * smart callbacks will be called in reverse in respect to the order they + * were added, and since our @c btn_end_cb will close the hover, and thus + * delete our buttons, the other callback wouldn't be called if we had + * added it before. + * + * After our telephone popup, there are a few others that are practically + * the same, so they won't be shown here. + * + * Once we are done with that, it's time to place our actions into our + * hover. Main button goes in the middle without much questioning, and then + * we see if we have a secondary button and a box of extra options. + * Because I said so, secondary button goes on either side and box of + * options either on top or below the main one, but to choose which + * exactly, we use the hints our callback info has, which saves us from + * having to do the math and see which side has more space available, with + * a little special case where we delete our extra stuff if there's nowhere + * to place it. + * @skip url: + * @skip } + * @skip evas_object_smart + * @until evas_object_del(box) + * @until } + * @until } + * + * The example will look like this: + * + * @image html screenshots/anchorblock_01.png + * @image latex screenshots/anchorblock_01.eps width=\textwidth + * + * @example anchorblock_example_01.c + */ + +/** + * @page tutorial_check Check example + * @dontinclude check_example_01.c + * + * This example will show 2 checkboxes, one with just a label and the second + * one with both a label and an icon. This example also ilustrates how to + * have the checkbox change the value of a variable and how to react to those + * changes. + * + * We will start with the usual setup code: + * @until show(bg) + * + * And now we create our first checkbox, set its label, tell it to change + * the value of @p value when the checkbox stats is changed and ask to be + * notified of state changes: + * @until show + * + * For our second checkbox we are going to set an icon so we need to create + * and icon: + * @until show + * @note For simplicity we are using a rectangle as icon, but any evas object + * can be used. + * + * And for our second checkbox we set the label, icon and state to true: + * @until show + * + * We now do some more setup: + * @until ELM_MAIN + * + * And finally implement the callback that will be called when the first + * checkbox's state changes. This callback will use @p data to print a + * message: + * @until } + * @note This work because @p data is @p value(from the main function) and @p + * value is changed when the checkbox is changed. + * + * Our example will look like this: + * + * @image html screenshots/check_example_01.png + * @image latex screenshots/check_example_01.eps width=\textwidth + * + * @example check_example_01.c + */ + +/** + * @page tutorial_colorselector Color selector example + * @dontinclude colorselector_example_01.c + * + * This example shows how to change the color of a rectangle using a color + * selector. We aren't going to explain a lot of the code since it's the + * usual setup code: + * @until show(rect) + * + * Now that we have a window with background and a rectangle we can create + * our color_selector + * @until elm_colorselector_add + * + * Now colors can be loaded to color selector's palette by setting the palette name + * @until show(cs) + * + * Next we ask to be notified whenever the color changes on selector: + * @until changed + * + * Next we ask to be notified whenever the color item is selected and longpressed: + * @until color,item,longpressed + * + * We add some more code to the usual setup code: + * @until ELM_MAIN() + * + * now get to the "changed" callback that sets the color of the rectangle: + * @until } + * + * And now get to the "color,item,selected" callback that sets the color of the rectangle: + * @until } + * + * And now get to the "color,item,longpressed" callback that gets and displays + * the color of the rectangle: + * @until } + * + * This example will look like this: + * + * @image html screenshots/colorselector_example_01.png + * @image latex screenshots/colorselector_example_01.eps width=\textwidth + * + * @example colorselector_example_01.c + */ + +/** + * @page slideshow_example Slideshow widget example + * + * This application is aimed to exemplify the slideshow widget. It + * consists of a window with a slideshow widget set as "resize + * object", along with a control bar, in the form of a notify. Those + * controls will exercise most of the slideshow's API functions. + * + * We create the slideshow, itself, first, making it @b loop on its + * image itens, when in slideshow mode: + * @dontinclude slideshow_example.c + * @skip slideshow = elm_slideshow_add + * @until evas_object_show + * + * Next, we define the item class for our slideshow + * items. Slideshow images are going to be Elementary @ref Photo "photo" + * widgets, here, as pointed by our @c get class + * function. We'll let the Elementary infrastructure to delete those + * objects for us, and, as there's no additional data attached to our + * slideshow items, the @c del class function can be left undefined: + * @dontinclude slideshow_example.c + * @skip itc + * @until ; + * @dontinclude slideshow_example.c + * @skip itc.func + * @until = NULL + * @dontinclude slideshow_example.c + * @skip get our images to make slideshow items + * @until } + * + * We now get to populate the slideshow widget with items. Our images + * are going to be some randomly chosen from the Elementary package, + * nine of them. For the first eight, we insert them ordered in the + * widget, by using elm_slideshow_item_sorted_insert(). The comparing + * function will use the image names to sort items. The last item is + * inserted at the end of the slideshow's items list, with + * elm_slideshow_item_add(). We check out how that list ends with + * elm_slideshow_items_get(), than: + * @dontinclude slideshow_example.c + * @skip static const char *img + * @until _2 + * @dontinclude slideshow_example.c + * @skip first = + * @until data_get + * + * Note that we save the pointers to the first and last items in the + * slideshow, for future use. + * + * What follows is the code creating a notify, to be shown over the + * slideshow's viewport, with knobs to act on it. We're not showing + * that boilerplate code, but only the callbacks attached to the + * interesting smart events of those knobs. The first four are + * buttons, which will: + * - Select the @b next item in the slideshow + * - Select the @b previous item in the slideshow + * - Select the @b first item in the slideshow + * - Select the @b last item in the slideshow + * + * Check out the code for those four actions, being the two last @c + * data pointers the same @c first and @c last pointers we save + * before, respectively: + * @dontinclude slideshow_example.c + * @skip jump to next + * @until } + * @until } + * @until } + * @until } + * + * What follow are two hoversels, meant for one to change the + * slideshow's @b transition and @b layout styles, respectively. We + * fetch all the available transition and layout names to populate + * those widgets and, when one selects any of them, we apply the + * corresponding setters on the slideshow: + * @dontinclude slideshow_example.c + * @skip hv = elm_hoversel_add + * @until show(hv) + * @until show(hv) + * @dontinclude slideshow_example.c + * @skip transition changed + * @until } + * @until } + * + * For one to change the transition @b time on the slideshow widget, + * we use a spinner widget. We set it to the initial value of 3 + * (seconds), which will be probed by the next knob -- a button + * starting the slideshow, de facto. Note that changing the transition + * time while a slideshow is already happening will ajust its + * transition time: + * @dontinclude slideshow_example.c + * @skip spin = elm_spinner_add + * @until evas_object_show + * @dontinclude slideshow_example.c + * @skip slideshow transition time has + * @until } + * + * Finally, we have two buttons which will, respectively, start and + * stop the slideshow on our widget. Here are their "clicked" + * callbacks: + * @dontinclude slideshow_example.c + * @skip start the show + * @until } + * @until } + * + * This is how the example program's window looks like: + * @image html screenshots/slideshow_example.png + * @image latex screenshots/slideshow_example.eps width=\textwidth + * + * See the full @ref slideshow_example_c "source code" for + * this example. + * + * @example slideshow_example.c + */ + +/** + * @page tutorial_photocam Photocam example + * @dontinclude photocam_example_01.c + * + * In this example we will have a photocam and a couple of buttons and slider to + * control the photocam. To avoid cluttering we'll only show the parts of the + * example that relate to the photocam, the full source code can be seen @ref + * photocam_example_01.c "here". + * + * Creating a photocam is as easy as creating any other widget: + * @skipline elm_photocam_add + * + * A photocam is only useful if we have a image on it, so lets set a file for it + * to work with: + * @until file_set + * + * We now set the photocam to not bounce horizontally: + * @until bounce_set + * + * And we want to know when the photocam has finished loading the image so: + * @until smart_callback + * + * The reason to know when the image is loaded is so that we can bring the + * center of the image into view: + * @skip static + * @until } + * + * As mentioned we have 2 buttons in this example, the "Fit" one will cause + * the photocam to go in to a zoom mode that makes the image fit inside the + * photocam. Tough this has no effect on the image we also print what region was + * being viewed before setting the zoom mode: + * @until } + * @note When in fit mode our slider(explained below) won't work. + * + * The second button("Unfit") will bring the photocam back into manual zoom + * mode: + * @until } + * + * Our slider controls the level of zoom of the photocam: + * @until } + * @note It is important to note that this only works when in manual zoom mode. + * + * Our example will initially look like this: + * + * @image html screenshots/photocam_example_01.png + * @image latex screenshots/photocam_example_01.eps width=\textwidth + * + * @example photocam_example_01.c + */ + +/** + * @page inwin_example_01 Inwin - General overview + * + * Inwin is a very simple widget to show, so this example will be a very simple + * one, just using all of the available API. + * + * The program is nothing but a window with a lonely button, as shown here. + * + * @image html screenshots/inwin_example.png + * @image latex screenshots/inwin_example.eps width=\textwidth + * + * And pressing the button makes an inwin appear. + * + * @image html screenshots/inwin_example_a.png + * @image latex screenshots/inwin_example_a.eps width=\textwidth + * + * And the code is just as simple. We being with some global variables to keep + * track of our Inwin. + * @dontinclude inwin_example.c + * @skip static + * @until current_style + * + * And two callbacks used by the buttons the above screenshot showed. In these, + * we check if @c inwin exists and execute the proper action on it. If it's not + * there anymore, then we were abandoned to our luck, so we disabled ourselves. + * @until _inwin_destroy + * @until } + * @until } + * + * The lonely button from the beginning, when clicked, will call the following + * function, which begins by checking if an inwin exists, and if it's there, + * we bring it back to the front and exit from our function without any further + * ado. + * @until } + * + * But if no inwin is there to show, we need to create one. First we need the + * top-most window for the program, as no inwin can be created using other + * objects as parents. Then we create our popup, set the next style in the list + * and show it. + * @until current_style = + * + * As for the content of our inwin, it's just a box with a label and some + * buttons inside. + * @until _inwin_destroy + * @until } + * + * Now, all the code above shows how every object must always be set as content + * for some other object, be it by setting the full content, packing it in a + * box or table or working as icon for some other widget. But we didn't do + * anything like that for the inwin, this one is just created and shown and + * everything works. Other widgets can be used this way, but they would need + * to be placed and resized manually or nothing would be shown correctly. The + * inwin, however, sets itself as a children of the top-level window and will + * be resized as the parent window changes too. + * + * Another characteristic of Inwin is that when it's shown above everyone else, + * it will work kind of like a modal window, blocking any other widget from + * receiving events until the window is manually dismissed by pressing some + * button to close it or having blocking task signalling its completion so + * normal operations can be resumed. This is unlike the @ref Hover widget, + * that would show its content on top of the designated target, but clicking + * anywhere else would dismiss it automatically. + * + * To illustrate that last point, when we close the main window and an inwin + * is still there, we'll take out the content from the inwin and place it in + * a hover. + * @until } + * @until } + * + * And the rest of the program doesn't have anything else related to inwin, + * so it won't be shown here, but you can find it in + * @ref inwin_example.c "inwin_example.c". + * + * @example inwin_example.c + */ + +/** + * @page tutorial_scroller Scroller example + * @dontinclude scroller_example_01.c + * + * This example is very short and will illustrate one way to use a scroller. + * We'll omit the declaration of the @p text variable because it's a very long + * @htmlonly@endhtmlonly ipsum lorem + * @htmlonly@endhtmlonly. If you really want to see the full code, it's @ref + * scroller_example_01.c "scroller_example_01.c". + * + * We start our example by creating our window and background: + * @skip EAPI + * @until show(bg) + * + * Next we create a label and set it's text to @p text(very long ipsum lorem): + * @until show(label) + * + * We then create our scroller, ask that it have the same size as the window and + * set its content: + * @until content_set + * + * We are now going to set a number of properties in our scroller: + * @li We make it bounce horizontally but not vertically. + * @li We make both scrollbars always be visible. + * @li We have the events be propagated from the content to the scroller. + * @li We enforce a page policy vertically(having a page be the size of the + * viewport) and leave horizontal scrolling free. + * @li And finally we ask the scroller to show us a region starting at 50,50 and + * having a width and height of 200px. + * @until region_show + * @note Observant reader will note that the elm_scroller_region_show() didn't + * scroll the view vertically, this is because we told the scroller to only + * accept vertical scrolling in pages. + * + * And now we're done: + * @until ELM_MAIN + * + * Our example will look like this: + * + * @image html screenshots/scroller_example_01.png + * @image latex screenshots/scroller_example_01.eps width=\textwidth + * + * @example scroller_example_01.c + */ + +/** + * @page tutorial_table_01 + * + * In this example we add four labels to a homogeneous table that has a padding + * of 5px between cells. + * + * The interesting bits from this example are: + * @li Where we set the table as homogeneous and the padding: + * @dontinclude table_example_01.c + * @skip padding_set + * @until homogeneous_set + * @li Where we add each label to the table: + * @skipline elm_table_pack + * @skipline elm_table_pack + * @skipline elm_table_pack + * @skipline elm_table_pack + * + * Here you can see the full source: + * @include table_example_01.c + * + * Our example will look like this: + * + * @image html screenshots/table_example_01.png + * @image latex screenshots/table_example_01.eps width=\textwidth * - * Next, we hook to two smart events of the index object: - * @dontinclude index_example_01.c - * @skip smart_callback_add(d.index - * @until _index_selected - * @dontinclude index_example_01.c - * @skip "delay,changed" hook - * @until } - * @until } + * @example table_example_01.c + */ + +/** + * @page tutorial_table_02 * - * Check that, whenever one holds the mouse pressed over a given index - * letter for some time, the list beneath it will roll down to the - * item pointed to by that index item. When one releases the mouse - * button, the second callback takes place. There, we check that the - * reported item data, on @c event_info, is the same reported by - * elm_index_item_selected_get(), which gives the last selection's - * data on the index widget. + * For our second example we'll create a table with 4 rectangles in it. Since + * our rectangles are of different sizes our table won't be homogeneous. * - * The first of the three buttons that follow will call - * elm_index_active_set(), thus showing the index automatically for - * you, if it's not already visible, what is checked with - * elm_index_active_get(). The second button will exercise @b deletion - * of index item objects, by the following code: - * @dontinclude index_example_01.c - * @skip delete an index item + * The interesting bits from this example are: + * @li Where we set the table as not homogeneous: + * @dontinclude table_example_02.c + * @skipline homogeneous_set + * @li Where we add each rectangle to the table: + * @skipline elm_table_pack + * @skipline elm_table_pack + * @skipline elm_table_pack + * @skipline elm_table_pack + * + * Here you can see the full source: + * @include table_example_02.c + * + * Our example will look like this: + * + * @image html screenshots/table_example_02.png + * @image latex screenshots/table_example_02.eps width=\textwidth + * + * @example table_example_02.c + */ + +/** + * @page tutorial_menu Menu Example + * @dontinclude menu_example_01.c + * + * This example shows how to create a menu with regular items, object items, + * submenus and how to delete items from a menu. The full source for this + * example is @ref menu_example_01.c "menu_example_01.c". + * + * We'll start looking at the menu creation and how to create a very simple + * item: + * @skip menu_add + * @until item_add + * + * For our next item we are going to add an icon: + * @until item_add + * + * Now we are going to add more items, but these icons are going to have a + * parent, which will put them in a sub-menu. First just another item with an + * icon: + * @until item_add + * + * Next we are going to add a button to our menu(any elm widget can be added to + * a menu): + * @until item_add + * + * We are also going to have the button delete the first item of our + * sub-menu when clicked: + * @until smart_callback + * @dontinclude menu_example_01.c + * @skip static * @until } * - * It will get the last index item selected's data and find the - * respective #Elm_Index_Item handle with elm_index_item_find(). We - * need the latter to query the indexing letter string from, with - * elm_index_item_letter_get(). Next, comes the delition, itself, - * which will also trigger the @c _index_item_del callback function, - * as said above. + * We now add a separator and three more regular items: + * @until item_add + * @until item_add + * @until item_add * - * The third button, finally, will exercise elm_index_item_clear(), - * which will delete @b all of the index's items. + * We now add another item, however this time it won't go the sub-menu and it'll + * be disabled: + * @until disabled_set * - * This is how the example program's window looks like with the index - * widget hidden: - * @image html screenshots/index_example_00.png - * @image latex screenshots/index_example_00.eps + * To make sure that our menu is shown whenever the window is clicked(and where + * clicked) we use the following callback: + * @dontinclude menu_example_01.c + * @skip static + * @skipline static + * @until } * - * When it's shown, it's like the following figure: - * @image html screenshots/index_example_01.png - * @image latex screenshots/index_example_01.eps + * Our example will look like this: * - * See the full @ref index_example_01_c "source code" for - * this example. + * @image html screenshots/menu_example_01.png + * @image latex screenshots/menu_example_01.eps width=\textwidth * - * @example index_example_01.c + * @example menu_example_01.c */ /** - * @page index_example_02 Index widget example 2 + * @page win_example_01 Win - General API overview * - * This code places an Elementary index widget on a window, indexing - * grid items. The items are placed so that their labels @b don't - * follow any order, but the index itself is ordered (through - * elm_index_item_sorted_insert()). This is a complement to to @ref - * index_example_01 "the first example on indexes". + * For most users of the Elementary API, the @ref Win widget has a lot more + * functions than what they need. * - * Here's the list of item labels to be used on the grid (in that - * order): - * @dontinclude index_example_02.c - * @skip static const char *items - * @until }; + * In general, a developer will create a window, set some content on it and + * forget about it for the rest of its program's life, letting whatever + * Window Manager is there to handle the window. Here, however, we are going + * to show how to generally manage a window. * - * In the interesting part of the code, here, we first instantiate the - * grid (more on grids on their examples) and, after creating our - * index, for each grid item we also create an index one to reference - * it: - * @dontinclude index_example_02.c - * @skip grid = elm_gengrid_add + * We'll have a bit more than the usual includes here, since part of the + * example requires some low level fiddling. + * @dontinclude win_example.c + * @skip Elementary.h + * @until Ecore_X.h + * + * The program then, consists of one window with two lists of buttons, each + * of which operates on another two windows. One of them is a normal window, + * the other has the @c override flag set so the Window Manager ignores it. + * + * Pressing each button will call the corresponding function to act on the + * corresponding window. These are pretty self explanatory, so we'll show + * them in one batch. + * @skip static void + * @until elm_win_sticky_set * @until } - * @until smart_callback_add * - * The order in which they'll appear in the index, though, is @b - * alphabetical, becase of elm_index_item_sorted_insert() usage - * together with the comparing function, where we take the letters of - * each index item to base our ordering on. The parameters on - * @c _index_cmp have to be declared as void pointers because of the - * @c Eina_Compare_Cb prototype requisition, but in this case we know - * they'll be #Elm_Index_Item's: - * @dontinclude index_example_02.c - * @skip ordering alphabetically + * Next, we handle the main window closing. We have a @c "delete,request" + * callback set to ask if really want to quit. If so, we end the main loop, + * otherwise just delete the popup message and continue running normally. + * @until _no_quit_cb + * @until _no_quit_cb * @until } * - * The last interesting bit is the callback in the @c "delay,changed" - * smart event, which will bring the given grid item to the grid's - * visible area: - * @dontinclude index_example_02.c - * @skip static void + * The non-managed window, being completely ignored by the Window Manager, + * is likely to never receive keyboard focus, even if we click on its entry + * to write something. So we have a button on it that will forcefully focus + * it by using some lower level functions to act directly on the X window. + * Then, each time one of the window is focused, we print some message on a + * console to show this more clearly. + * @until _win_focused_cb * @until } * - * Note how the grid will move kind of randomly while you move your - * mouse pointer held over the index from top to bottom -- that's - * because of the the random order the items have in the grid itself. + * And to finalize, the main function creates a window to hold all the action + * buttons and another two to show how (and what) works on each of them. + * + * First, the main window will be a normal window, we'll enable the focus + * highlight regardless of how it is configured so it's easier to navigate + * the window with the keyboard. Then we hook our focus and delete callbacks + * and set up the rest of the window's content. + * @until evas_object_show(box) + * + * The first of our sub-windows is the managed one. We'll create it as a + * dialog, which should make the Window Manager treat it as a non-resizable + * window. We are also setting the window to be auto-deleted when the close + * button in the titlebar is pressed. + * @until evas_object_show(o) + * + * Now, we added an icon to the window as a resize object. We also set this + * icon to not scale, and no weight size hints have been set for it. This way, + * even if we hadn't created the window as a dialog, it would still not be + * resizable. The window size is defined by its content, so it would never be + * smaller than the smallest of its resize objects, and for it to be resizable, + * all of those objects have to allow it. + * + * Next, we add the buttons with the actions to perform on this window. Using + * a macro saves us typing and makes the world a happier place. + * @until WIN_ACTION(sticky) + * + * The maximize one is likely to not work, because the Window Manager will + * probably not enforce it upon a window that states its maximum size, much + * less a dialog. But that can be changed by editting the example to use + * #ELM_WIN_BASIC when creating the window and adding the following line to + * the icon set as content + * @code + * evas_object_size_hint_weight_set(o, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); + * @endcode * - * This is how the example program's window looks like: - * @image html screenshots/index_example_03.png - * @image latex screenshots/index_example_03.eps + * Lastly, the second sub-window will have it's override flag set. In it we + * have a label with some text, and entry and a button. The entry can be + * clicked normally to set focus on it, but whether it actually gets keyboard + * input will also depend on the window getting focus, and since the window + * is an override one, it will probably not gain it by normal means. The + * button is there to force the focus at the X level to go to our window. + * And to finish, another list of buttons with actions to perform on this + * last window. Remember that most of them are requests or hints for the + * Window Manager, so they are likely to do nothing on this window. + * Similarly, there won't be any way to move it or resize it, because we + * haven't implemented that kind of control on this example and that's + * something controlled by Window Managers on windows they are tracking, which + * is not the case with this one. + * @until ELM_MAIN * - * See the full @ref index_example_c "source code" for - * this example. + * The full code listing of this example can be found at + * @ref win_example.c "win_example.c". * - * @example index_example_02.c + * @example win_example.c */ /** - * @page tutorial_ctxpopup Ctxpopup example - * @dontinclude ctxpopup_example_01.c + * @page web_example_01 Web - Simple example * - * In this example we have a list with two items, when either item is clicked - * a ctxpopup for it will be shown. Our two ctxpopups are quite different, the - * one for the first item is a vertical and it's items contain both labels and - * icons, the one for the second item is horizontal and it's items have icons - * but not labels. + * WebKit-EFL is independent of any particular toolkit, such as Elementary, + * so using it on applications requires that the programmer writes a lot of + * boiler plate code to manage to manage the web object. * - * We will begin examining our example code by looking at the callback we'll use - * when items in the ctxpopup are clicked. It's very simple, all it does is - * print the label present in the ctxpopup item: + * For a full featured browser this may make sense, as the programmer will + * want to have full control of every aspect of the web object, since it's the + * main component of the application. But other programs with simpler + * requirements, having to write so much code is undesired. + * + * This is where elm_web comes in. Its purpose is to provide a simple way + * for developers to embed a simple web object in their programs, simplifying + * the common use cases. + * + * This is not to say that a browser can't be made out of it, as this example + * shows. + * + * We'll be making a simple browser, consisting of one window with an URL bar, + * a toolbar to be used for the tabs and a pager to show one page at a time. + * + * When all tabs are closed, we'll be showing a default view with some custom + * content, for which we need to get the internal @c ewk_view object and use + * some WebKit functions on it, thus we need to include the necessary headers + * first. + * + * @dontinclude web_example.c + * @skip include + * @until EWebKit + * + * A struct to keep track of the different widgets in use and the currently + * shown tab. There's also an @c exiting flag, used to work around the overly + * simplistic way in which this example is written, just to avoid some + * warnings when closing the program. + * + * @skip typedef + * @skip typedef + * @until App_Data + * + * Each tab has its own struct too, but there's not much to it. + * @until }; + * + * Whenever the currently selected tab changes, we need to update some state + * on the application. The back and forward buttons need to be disabled + * accordingly and the URL bar needs to show the right address. + * + * @skip static void + * @until naviframe_item_simple_promote * @until } * - * Next we examine a function that creates ctxpopup items, it was created to - * avoid repeating the same code whenever we needed to add an item to our - * ctxpopup. Our function creates an icon from the standard set of icons, and - * then creates the item, with the label received as an argument. We also set - * the callback to be called when the item is clicked: + * Other updates happen based on events from the web object, like title change + * to update the name shown in the tab, and URL change which will update the + * URL bar if the event came from the currently selected tab. + * + * @skip tab_current_set + * @skip static void + * @until } * @until } * - * Finally we have the function that will create the ctxpopup for the first item - * in our list. This one is somewhat more complex though, so let's go through it - * in parts. First we declare our variable and add the ctxpopup: - * @until ctxpopup_add + * Adding a new tab is just a matter of creating a new web widget, its data + * and pushing it into the pager. A lot of the things that we should handle + * here, such as how to react to popups and JavaScript dialogs, are done + * already in the @c elm_web widget, so we can rely on their default + * implementations. For the JavaScript dialogs we are going to avoid having + * them open in a new window by setting the @c Inwin mode. * - * Next we create a bunch of items for our ctxpopup, marking two of them as - * disabled just so we can see what that will look like: - * @until disabled_set - * @until disabled_set + * There is no default implementation, however, for the requests to create a + * new window, so we have to handle them by setting a callback function that + * will ultimately call this very same function to add a new tab. * - * Then we ask evas where the mouse pointer was so that we can have our ctxpopup - * appear in the right place, set a maximum size for the ctxpopup, move it and - * show it: - * @until show + * @skip Tab_Data + * @until } * - * And last we mark the list item as not selected: + * Entering an address in the URL bar will check if a tab exists, and if not, + * create one and set the URL for it. The address needs to conform to the URI + * format, so we check that it does and add the protocol if it's missing. + * + * @skip static char + * @until eina_stringshare_del * @until } * - * Our next function is the callback that will create the ctxpopup for the - * second list item, it is very similar to the previous function. A couple of - * interesting things to note is that we ask our ctxpopup to be horizontal, and - * that we pass NULL as the label for every item: + * The navigation buttons are simple enough. As for the refresh, it normally + * reloads the page using anything that may exist in the caches if applicable, + * but we can press it while holding the @c Shift key to avoid the cache. + * + * @skip static void + * @until web_forward * @until } * - * And with all of that in place we can now get to our main function where we - * create the window, the list, the list items and run the main loop: - * @until ELM_MAIN() + * The callback set for the new window request creates a new tab and returns + * the web widget associated with it. This is important, this function must + * return a valid web widget returned by elm_web_add(). * - * The example will initially look like this: + * @skip static Evas_Object + * @until } * - * @image html screenshots/ctxpopup_example_01.png - * @image latex screenshots/ctxpopup_example_01.eps width=\textwidth + * Pressing @c Ctrl-F will bring up the search box. Nothing about the box + * itself is worth mentioning here, but it works as you would expect from any + * other browser. While typing on it, it will highlight all occurrences of the + * searched word. Pressing @c Enter will go to the next instance and the two + * buttons next to the entry will move forward and backwards through the found + * keywords. * - * @note This doesn't show the ctxpopup tough, since it will only appear when - * we click one of the list items. + * @skip win_del_request + * @skip static void + * @until win_search_trigger + * @until } * - * Here is what our first ctxpopup will look like: + * Last, create the main window and put all of the things used above in it. It + * contains a default web widget that will be shown when no tabs exist. This + * web object is not browsable per se, so history is disabled in it, and we + * set the same callback to create new windows, on top of setting some custom + * content of our own on it, with some links that will open new tabs to start + * browsing quickly. * - * @image html screenshots/ctxpopup_example_01_a.png - * @image latex screenshots/ctxpopup_example_01_a.eps width=\textwidth + * @skip static void + * @until ELM_MAIN * - * And here the second ctxpopup: + * Some parts of the code were left out, as they are not relevant to the + * example, but the full listing can be found at @ref web_example.c + * "web_example.c". * - * @image html screenshots/ctxpopup_example_01_b.png - * @image latex screenshots/ctxpopup_example_01_b.eps width=\textwidth + * @example web_example.c + */ + +/** + * @page efl_thread_1 EFL Threading example 1 + * + * You can use threads with Elementary (and EFL) but you need to be careful + * to only use eina or eet calls inside a thread. Other libraries are not + * totally threadsafe except for some specific ecore calls designed for + * working from threads like the ecore_pipe_write() and ecore_thread calls. + * + * Below is an example of how to use EFL calls from a native thread you have + * already created. You have to put the EFL calls inside the critical block + * between ecore_thread_main_loop_begin() and ecore_thread_main_loop_end() + * which ensure you gain a lock on the mainloop. Beware that this requires + * that the thread WAIT to synchronize with the mainloop at the beginning of + * the critical section. It is highly suggested you use as few of these + * in your thread as possible and probably put just a single + * ecore_thread_main_loop_begin() / ecore_thread_main_loop_end() section + * at the end of the threads calculation or work when it is done and + * would otherwise exit to sit idle. + * + * For a progression of examples that become more complex and show other + * ways to use threading with EFL, please see: + * + * @ref efl_thread_2 + * + * @ref efl_thread_3 + * + * @ref efl_thread_4 + * + * @ref efl_thread_5 + * + * @ref efl_thread_6 + * + * @include efl_thread_1.c + */ + +/** + * @page efl_thread_2 EFL Threading example 2 + * + * You can also use ecore_main_loop_thread_safe_call_sync() to call a + * specific function that needs to do EFL main loop operations. This call + * will block and wait to synchronise to the mainloop just like + * ecore_thread_main_loop_begin() / ecore_thread_main_loop_end() will, + * but instead you simply provide it the function callback to call instead + * of inlining your code. + * + * @ref efl_thread_3 + * + * @ref efl_thread_4 + * + * @ref efl_thread_5 + * + * @ref efl_thread_6 + * + * @include efl_thread_2.c + */ + +/** + * @page efl_thread_3 EFL Threading example 3 + * + * Like with ecore_main_loop_thread_safe_call_sync() you can provide a + * callback to call inline in the mainloop, but this time with + * ecore_main_loop_thread_safe_call_async() the callback is queued and + * called asynchronously, without the thread blocking. The mainloop will + * call this function when it comes around to its synchronisation point. This + * acts as a "fire and forget" way of having the mainloop do some work + * for a thread that has finished processing some data and is read to hand it + * off to the mainloop and the thread wants to march on and do some more work + * while the main loop deals with "displaying" the results of the previous + * calculation. + * + * @ref efl_thread_4 + * + * @ref efl_thread_5 + * + * @ref efl_thread_6 + * + * @include efl_thread_3.c + */ + +/** + * @page efl_thread_4 EFL Threading example 4 * - * @example ctxpopup_example_01.c + * Now when you want to have a thread do some work, send back results to + * the mainloop and continue running but the mainloop controls when the + * thread should stop working, you need some extra flags. This is an example + * of how you might use ecore_main_loop_thread_safe_call_async() and pthreads + * to do this. + * + * @ref efl_thread_5 + * + * @ref efl_thread_6 + * + * @include efl_thread_4.c + */ + +/** + * @page efl_thread_5 EFL Threading example 5 + * + * This is the same as @ref efl_thread_4 but now uses the ecore_thread + * infrastructure to have a running worker thread that feeds results back + * to the mainloop and can easily be cancelled. This saves some code in the + * application and makes for fewer problem spots if you forget a mutex. + * + * @ref efl_thread_6 + * + * @include efl_thread_5.c + */ + +/** + * @page efl_thread_6 EFL Threading example 6 + * + * You can also use the ecore_thread infrastructure for compute tasks that + * don't send feedback as they go - they are one-shot compute jobs and when + * done they will trigger the end callback in the mainloop which is intended + * to pick up the results and "display them". + * + * @include efl_thread_6.c */ /** @@ -2856,12 +6283,6 @@ */ /** - * @page animator_example_01_c Animator example 01 - * @include animator_example_01.c - * @example animator_example_01.c - */ - -/** * @page transit_example_01_c Transit example 1 * @include transit_example_01.c * @example transit_example_01.c @@ -2885,6 +6306,18 @@ * @example clock_example.c */ + /** + * @page datetime_example_c Datetime example + * @include datetime_example.c + * @example datetime_example.c + */ + +/** + * @page dayselector_example_c Dayselector example + * @include dayselector_example.c + * @example dayselector_example.c + */ + /** * @page flipselector_example_c Flipselector example * @include flipselector_example.c @@ -2949,3 +6382,87 @@ * @include layout_example.edc * @example layout_example.edc */ + +/** + * @page gengrid_example_c Gengrid example + * @include gengrid_example.c + * @example gengrid_example.c + */ + +/** + * @page genlist_example_01_c genlist_example_01.c + * @include genlist_example_01.c + * @example genlist_example_01.c + */ + +/** + * @page genlist_example_02_c genlist_example_02.c + * @include genlist_example_02.c + * @example genlist_example_02.c + */ + +/** + * @page genlist_example_04_c genlist_example_04.c + * @include genlist_example_04.c + * @example genlist_example_04.c + */ + +/** + * @page genlist_example_05_c genlist_example_05.c + * @include genlist_example_05.c + * @example genlist_example_05.c + */ + +/** + * @page thumb_example_01_c thumb_example_01.c + * @include thumb_example_01.c + * @example thumb_example_01.c + */ + +/** + * @page progressbar_example_c Progress bar example + * @include progressbar_example.c + * @example progressbar_example.c + */ + +/** + * @page slideshow_example_c Slideshow example + * @include slideshow_example.c + * @example slideshow_example.c + */ + +/** + * @page efl_thread_1_c EFL Threading example 1 + * @include efl_thread_1.c + * @example efl_thread_1.c + */ + +/** + * @page efl_thread_2_c EFL Threading example 2 + * @include efl_thread_2.c + * @example efl_thread_2.c + */ + +/** + * @page efl_thread_3_c EFL Threading example 3 + * @include efl_thread_3.c + * @example efl_thread_3.c + */ + +/** + * @page efl_thread_4_c EFL Threading example 4 + * @include efl_thread_4.c + * @example efl_thread_4.c + */ + +/** + * @page efl_thread_5_c EFL Threading example 5 + * @include efl_thread_5.c + * @example efl_thread_5.c + */ + +/** + * @page efl_thread_6_c EFL Threading example 6 + * @include efl_thread_6.c + * @example efl_thread_6.c + */