From 22cdc1da7a5c76f0e577290fbd39a05dd8fa3a91 Mon Sep 17 00:00:00 2001 From: Bruno Dilly Date: Wed, 27 Jul 2011 13:32:51 +0000 Subject: [PATCH] Elementary: Slider documentation SVN revision: 61806 --- doc/Makefile.am | 1 + doc/examples.dox | 100 +++++++ doc/index.doxy | 3 + doc/widgets/Makefile.am | 2 + doc/widgets/widget_preview_slider.c | 8 + src/examples/Makefile.am | 3 + src/examples/slider_example.c | 152 +++++++++++ src/lib/Elementary.h.in | 501 +++++++++++++++++++++++++++++++++++- src/lib/elm_slider.c | 331 ------------------------ 9 files changed, 761 insertions(+), 340 deletions(-) create mode 100644 doc/widgets/widget_preview_slider.c create mode 100644 src/examples/slider_example.c diff --git a/doc/Makefile.am b/doc/Makefile.am index ed4834c..95cc847 100644 --- a/doc/Makefile.am +++ b/doc/Makefile.am @@ -32,6 +32,7 @@ WGT_PREVIEW = \ frame:preview-00.png:widget_preview_frame:100:50 \ label:preview-00.png:widget_preview_label:70:30 \ clock:preview-00.png:widget_preview_clock:200:100 \ + slider:preview-00.png:widget_preview_slider:200:100 \ ctxpopup:preview-00.png:widget_preview_ctxpopup:200:130 \ icon:preview-00.png:widget_preview_icon:50:50 \ image:preview-00.png:widget_preview_image:50:50 \ diff --git a/doc/examples.dox b/doc/examples.dox index dca265e..923e48b 100644 --- a/doc/examples.dox +++ b/doc/examples.dox @@ -33,6 +33,8 @@ * * @ref spinner_example * + * @ref slider_example + * * @ref clock_example * * @ref diskselector_example_01 @@ -1481,6 +1483,104 @@ */ /** + * @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 clock_example Clock widget example * * This code places five Elementary clock widgets on a window, each of diff --git a/doc/index.doxy b/doc/index.doxy index f199d56..283f8c2 100644 --- a/doc/index.doxy +++ b/doc/index.doxy @@ -163,6 +163,9 @@ * @image html img/widget/separator/preview-00.png * @image latex img/widget/separator/preview-00.eps * @li @ref Slider + * + * @image html img/widget/slider/preview-00.png + * @image latex img/widget/slider/preview-00.eps * @li @ref Slideshow * @li @ref Spinner * diff --git a/doc/widgets/Makefile.am b/doc/widgets/Makefile.am index dc3a820..0798297 100644 --- a/doc/widgets/Makefile.am +++ b/doc/widgets/Makefile.am @@ -47,6 +47,7 @@ widget_preview_index \ widget_preview_clock \ widget_preview_label \ widget_preview_frame \ +widget_preview_slider \ widget_preview_ctxpopup \ widget_preview_icon \ widget_preview_image \ @@ -98,6 +99,7 @@ EXTRA_DIST = \ widget_preview_clock.c \ widget_preview_colorselector.c \ widget_preview_conformant.c \ + widget_preview_slider.c \ widget_preview_ctxpopup.c \ widget_preview_diskselector.c \ widget_preview_entry1.c \ diff --git a/doc/widgets/widget_preview_slider.c b/doc/widgets/widget_preview_slider.c new file mode 100644 index 0000000..33e9fc7 --- /dev/null +++ b/doc/widgets/widget_preview_slider.c @@ -0,0 +1,8 @@ +#include "widget_preview_tmpl_head.c" + +Evas_Object *o = elm_slider_add(win); +evas_object_size_hint_weight_set(o, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); +elm_win_resize_object_add(win, o); +evas_object_show(o); + +#include "widget_preview_tmpl_foot.c" diff --git a/src/examples/Makefile.am b/src/examples/Makefile.am index 521437d..d0267c6 100644 --- a/src/examples/Makefile.am +++ b/src/examples/Makefile.am @@ -84,6 +84,7 @@ SRCS = \ genlist_example_03.c \ theme_example.edc \ layout_example.edc \ + slider_example.c \ ctxpopup_example_01.c \ pager_example_01.c \ separator_example_01.c \ @@ -155,6 +156,7 @@ pkglib_PROGRAMS += \ list_example_01 \ list_example_02 \ list_example_03 \ + slider_example \ ctxpopup_example_01 \ flipselector_example \ fileselector_example \ @@ -217,6 +219,7 @@ SCREENSHOTS = \ flipselector_example:flipselector_example.png:0.0 \ fileselector_example:fileselector_example.png:0.0 \ index_example_02:index_example_03.png:0.3 \ + slider_example:slider_example.png:0.0 \ ctxpopup_example_01:ctxpopup_example_01.png:0.0 \ pager_example_01:pager_example_01.png:0.0 \ separator_example_01:separator_example_01.png:0.0 \ diff --git a/src/examples/slider_example.c b/src/examples/slider_example.c new file mode 100644 index 0000000..5e0b79c --- /dev/null +++ b/src/examples/slider_example.c @@ -0,0 +1,152 @@ +/** + * Simple Elementary's slider widget example, illustrating its + * usage and API. + * + * See stdout/stderr for output. Compile with: + * + * @verbatim + * gcc -g `pkg-config --cflags --libs elementary` slider_example.c -o slider_example + * @endverbatim + */ + +#include +#ifdef HAVE_CONFIG_H +# include "elementary_config.h" +#else +# define __UNUSED__ +#endif + +static void +_on_done(void *data __UNUSED__, + Evas_Object *obj __UNUSED__, + void *event_info __UNUSED__) +{ + elm_exit(); +} + +static void +_changed_cb(void *data __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__) +{ + double val = elm_slider_value_get(obj); + printf("Changed to %1.2f\n", val); +} + +static void +_delay_changed_cb(void *data __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__) +{ + double val = elm_slider_value_get(obj); + printf("Delay changed to %1.2f\n", val); +} + +static char* +_indicator_format(double val) +{ + char *indicator = malloc(sizeof(char) * 32); + snprintf(indicator, 32, "%1.2f u", val); + return indicator; +} + +static void +_indicator_free(char *str) +{ + free(str); +} + +int +elm_main(int argc __UNUSED__, char **argv __UNUSED__) +{ + Evas_Object *win, *bg, *bx, *sl, *ic; + + win = elm_win_add(NULL, "slider", ELM_WIN_BASIC); + elm_win_title_set(win, "Slider Example"); + evas_object_smart_callback_add(win, "delete,request", _on_done, NULL); + + bg = elm_bg_add(win); + elm_win_resize_object_add(win, bg); + evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); + evas_object_show(bg); + + bx = elm_box_add(win); + evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); + elm_win_resize_object_add(win, bx); + evas_object_show(bx); + + /* default */ + sl = elm_slider_add(win); + evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5); + evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); + elm_box_pack_end(bx, sl); + evas_object_show(sl); + + /* with icon, end and label */ + sl = elm_slider_add(win); + elm_object_text_set(sl, "Counter"); + + ic = elm_icon_add(win); + elm_icon_standard_set(ic, "home"); + elm_icon_scale_set(ic, EINA_FALSE, EINA_FALSE); + elm_slider_icon_set(sl, ic); + + ic = elm_icon_add(win); + elm_icon_standard_set(ic, "folder"); + elm_icon_scale_set(ic, EINA_FALSE, EINA_FALSE); + elm_slider_end_set(sl, ic); + + evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5); + evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); + elm_box_pack_end(bx, sl); + evas_object_show(sl); + + /* value set and span size */ + sl = elm_slider_add(win); + elm_slider_value_set(sl, 1); + elm_slider_span_size_set(sl, 200); + evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5); + evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); + elm_box_pack_end(bx, sl); + evas_object_show(sl); + + /* with unit label and min - max */ + sl = elm_slider_add(win); + elm_slider_unit_format_set(sl, "%1.0f units"); + elm_slider_min_max_set(sl, 0, 100); + evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5); + evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); + elm_box_pack_end(bx, sl); + evas_object_show(sl); + + /* with indicator label and inverted */ + sl = elm_slider_add(win); + elm_slider_indicator_format_set(sl, "%1.2f"); + elm_slider_inverted_set(sl, EINA_TRUE); + evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5); + evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); + elm_box_pack_end(bx, sl); + evas_object_show(sl); + + /* vertical with indicator format func */ + sl = elm_slider_add(win); + elm_slider_horizontal_set(sl, EINA_FALSE); + elm_slider_indicator_format_function_set(sl, _indicator_format, + _indicator_free); + evas_object_size_hint_align_set(sl, 0.5, EVAS_HINT_FILL); + evas_object_size_hint_weight_set(sl, 0, EVAS_HINT_EXPAND); + elm_box_pack_end(bx, sl); + evas_object_show(sl); + + /* callbacks */ + sl = elm_slider_add(win); + elm_slider_unit_format_set(sl, "%1.3f units"); + evas_object_size_hint_align_set(sl, EVAS_HINT_FILL, 0.5); + evas_object_size_hint_weight_set(sl, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND); + elm_box_pack_end(bx, sl); + evas_object_show(sl); + evas_object_smart_callback_add(sl, "changed", _changed_cb, NULL); + evas_object_smart_callback_add(sl, "delay,changed", _delay_changed_cb, NULL); + + evas_object_show(win); + + elm_run(); + return 0; +} +ELM_MAIN() diff --git a/src/lib/Elementary.h.in b/src/lib/Elementary.h.in index d8f7fce..80b1dfd 100644 --- a/src/lib/Elementary.h.in +++ b/src/lib/Elementary.h.in @@ -10575,42 +10575,525 @@ extern "C" { * @} */ - /* slider */ + /** + * @defgroup Slider Slider + * @ingroup Elementary + * + * @image html img/widget/slider/preview-00.png + * @image latex img/widget/slider/preview-00.eps width=\textwidth + * + * The slider adds a dragable “slider” widget for selecting the value of + * something within a range. + * + * A slider can be horizontal or vertical. It can contain an Icon and has a + * primary label as well as a units label (that is formatted with floating + * point values and thus accepts a printf-style format string, like + * “%1.2f units”. There is also an indicator string that may be somewhere + * else (like on the slider itself) that also accepts a format string like + * units. Label, Icon Unit and Indicator strings/objects are optional. + * + * A slider may be inverted which means values invert, with high vales being + * on the left or top and low values on the right or bottom (as opposed to + * normally being low on the left or top and high on the bottom and right). + * + * The slider should have its minimum and maximum values set by the + * application with elm_slider_min_max_set() and value should also be set by + * the application before use with elm_slider_value_set(). The span of the + * slider is its length (horizontally or vertically). This will be scaled by + * the object or applications scaling factor. At any point code can query the + * slider for its value with elm_slider_value_get(). + * + * Smart callbacks one can listen to: + * - "changed" - Whenever the slider value is changed by the user. + * - "slider,drag,start" - dragging the slider indicator around has started. + * - "slider,drag,stop" - dragging the slider indicator around has stopped. + * - "delay,changed" - A short time after the value is changed by the user. + * This will be called only when the user stops dragging for + * a very short period or when they release their + * finger/mouse, so it avoids possibly expensive reactions to + * the value change. + * + * Available styles for it: + * - @c "default" + * + * Here is an example on its usage: + * @li @ref slider_example + */ + + /** + * @addtogroup Slider + * @{ + */ + + /** + * Add a new slider widget to the given parent Elementary + * (container) object. + * + * @param parent The parent object. + * @return a new slider widget handle or @c NULL, on errors. + * + * This function inserts a new slider widget on the canvas. + * + * @ingroup Slider + */ EAPI Evas_Object *elm_slider_add(Evas_Object *parent) EINA_ARG_NONNULL(1); + + /** + * Set the label of a given slider widget + * + * @param obj The progress bar object + * @param label The text label string, in UTF-8 + * + * @ingroup Slider + * @deprecated use elm_object_text_set() instead. + */ EINA_DEPRECATED EAPI void elm_slider_label_set(Evas_Object *obj, const char *label) EINA_ARG_NONNULL(1); + + /** + * Get the label of a given slider widget + * + * @param obj The progressbar object + * @return The text label string, in UTF-8 + * + * @ingroup Slider + * @deprecated use elm_object_text_get() instead. + */ EINA_DEPRECATED EAPI const char *elm_slider_label_get(const Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Set the icon object of the slider object. + * + * @param obj The slider object. + * @param icon The icon object. + * + * On horizontal mode, icon is placed at left, and on vertical mode, + * placed at top. + * + * @note Once the icon object is set, a previously set one will be deleted. + * If you want to keep that old content object, use the + * elm_slider_icon_unset() function. + * + * @warning If the object being set does not have minimum size hints set, + * it won't get properly displayed. + * + * @ingroup Slider + */ EAPI void elm_slider_icon_set(Evas_Object *obj, Evas_Object *icon) EINA_ARG_NONNULL(1); + + /** + * Unset an icon set on a given slider widget. + * + * @param obj The slider object. + * @return The icon object that was being used, if any was set, or + * @c NULL, otherwise (and on errors). + * + * On horizontal mode, icon is placed at left, and on vertical mode, + * placed at top. + * + * This call will unparent and return the icon object which was set + * for this widget, previously, on success. + * + * @see elm_slider_icon_set() for more details + * @see elm_slider_icon_get() + * + * @ingroup Slider + */ EAPI Evas_Object *elm_slider_icon_unset(Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Retrieve the icon object set for a given slider widget. + * + * @param obj The slider object. + * @return The icon object's handle, if @p obj had one set, or @c NULL, + * otherwise (and on errors). + * + * On horizontal mode, icon is placed at left, and on vertical mode, + * placed at top. + * + * @see elm_slider_icon_set() for more details + * @see elm_slider_icon_unset() + * + * @ingroup Slider + */ EAPI Evas_Object *elm_slider_icon_get(const Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Set the end object of the slider object. + * + * @param obj The slider object. + * @param end The end object. + * + * On horizontal mode, end is placed at left, and on vertical mode, + * placed at bottom. + * + * @note Once the icon object is set, a previously set one will be deleted. + * If you want to keep that old content object, use the + * elm_slider_end_unset() function. + * + * @warning If the object being set does not have minimum size hints set, + * it won't get properly displayed. + * + * @ingroup Slider + */ EAPI void elm_slider_end_set(Evas_Object *obj, Evas_Object *end) EINA_ARG_NONNULL(1); + + /** + * Unset an end object set on a given slider widget. + * + * @param obj The slider object. + * @return The end object that was being used, if any was set, or + * @c NULL, otherwise (and on errors). + * + * On horizontal mode, end is placed at left, and on vertical mode, + * placed at bottom. + * + * This call will unparent and return the icon object which was set + * for this widget, previously, on success. + * + * @see elm_slider_end_set() for more details. + * @see elm_slider_end_get() + * + * @ingroup Slider + */ EAPI Evas_Object *elm_slider_end_unset(Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Retrieve the end object set for a given slider widget. + * + * @param obj The slider object. + * @return The end object's handle, if @p obj had one set, or @c NULL, + * otherwise (and on errors). + * + * On horizontal mode, icon is placed at right, and on vertical mode, + * placed at bottom. + * + * @see elm_slider_end_set() for more details. + * @see elm_slider_end_unset() + * + * @ingroup Slider + */ EAPI Evas_Object *elm_slider_end_get(const Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Set the (exact) length of the bar region of a given slider widget. + * + * @param obj The slider object. + * @param size The length of the slider's bar region. + * + * This sets the minimum width (when in horizontal mode) or height + * (when in vertical mode) of the actual bar area of the slider + * @p obj. This in turn affects the object's minimum size. Use + * this when you're not setting other size hints expanding on the + * given direction (like weight and alignment hints) and you would + * like it to have a specific size. + * + * @note Icon, end, label, indicator and unit text around @p obj + * will require their + * own space, which will make @p obj to require more the @p size, + * actually. + * + * @see elm_slider_span_size_get() + * + * @ingroup Slider + */ EAPI void elm_slider_span_size_set(Evas_Object *obj, Evas_Coord size) EINA_ARG_NONNULL(1); + + /** + * Get the length set for the bar region of a given slider widget + * + * @param obj The slider object. + * @return The length of the slider's bar region. + * + * If that size was not set previously, with + * elm_slider_span_size_set(), this call will return @c 0. + * + * @ingroup Slider + */ EAPI Evas_Coord elm_slider_span_size_get(const Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Set the format string for the unit label. + * + * @param obj The slider object. + * @param format The format string for the unit display. + * + * Unit label is displayed all the time, if set, after slider's bar. + * In horizontal mode, at right and in vertical mode, at bottom. + * + * If @c NULL, unit label won't be visible. If not it sets the format + * string for the label text. To the label text is provided a floating point + * value, so the label text can display up to 1 floating point value. + * Note that this is optional. + * + * Use a format string such as "%1.2f meters" for example, and it will + * display values like: "3.14 meters" for a value equal to 3.14159. + * + * Default is unit label disabled. + * + * @see elm_slider_indicator_format_get() + * + * @ingroup Slider + */ EAPI void elm_slider_unit_format_set(Evas_Object *obj, const char *format) EINA_ARG_NONNULL(1); + + /** + * Get the unit label format of the slider. + * + * @param obj The slider object. + * @return The unit label format string in UTF-8. + * + * Unit label is displayed all the time, if set, after slider's bar. + * In horizontal mode, at right and in vertical mode, at bottom. + * + * @see elm_slider_unit_format_set() for more + * information on how this works. + * + * @ingroup Slider + */ EAPI const char *elm_slider_unit_format_get(const Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Set the format string for the indicator label. + * + * @param obj The slider object. + * @param indicator The format string for the indicator display. + * + * The slider may display its value somewhere else then unit label, + * for example, above the slider knob that is dragged around. This function + * sets the format string used for this. + * + * If @c NULL, indicator label won't be visible. If not it sets the format + * string for the label text. To the label text is provided a floating point + * value, so the label text can display up to 1 floating point value. + * Note that this is optional. + * + * Use a format string such as "%1.2f meters" for example, and it will + * display values like: "3.14 meters" for a value equal to 3.14159. + * + * Default is indicator label disabled. + * + * @see elm_slider_indicator_format_get() + * + * @ingroup Slider + */ EAPI void elm_slider_indicator_format_set(Evas_Object *obj, const char *indicator) EINA_ARG_NONNULL(1); + + /** + * Get the indicator label format of the slider. + * + * @param obj The slider object. + * @return The indicator label format string in UTF-8. + * + * The slider may display its value somewhere else then unit label, + * for example, above the slider knob that is dragged around. This function + * gets the format string used for this. + * + * @see elm_slider_indicator_format_set() for more + * information on how this works. + * + * @ingroup Slider + */ EAPI const char *elm_slider_indicator_format_get(const Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Set the format function pointer for the indicator label + * + * @param obj The slider object. + * @param func The indicator format function. + * @param free_func The freeing function for the format string. + * + * Set the callback function to format the indicator string. + * + * @see elm_slider_indicator_format_set() for more info on how this works. + * + * @ingroup Slider + */ EAPI void elm_slider_indicator_format_function_set(Evas_Object *obj, const char *(*func)(double val), void (*free_func)(const char *str)) EINA_ARG_NONNULL(1); + + /** + * Set the format function pointer for the units label + * + * @param obj The slider object. + * @param func The units format function. + * @param free_func The freeing function for the format string. + * + * Set the callback function to format the indicator string. + * + * @see elm_slider_units_format_set() for more info on how this works. + * + * @ingroup Slider + */ EAPI void elm_slider_units_format_function_set(Evas_Object *obj, const char *(*func)(double val), void (*free_func)(const char *str)) EINA_ARG_NONNULL(1); + + /** + * Set the orientation of a given slider widget. + * + * @param obj The slider object> + * @param horizontal Use @c EINA_TRUE to make @p obj to be + * @b horizontal, @c EINA_FALSE to make it @b vertical. + * + * Use this function to change how your slider is to be + * disposed: vertically or horizontally. + * + * By default it's displayed horizontally. + * + * @see elm_slider_horizontal_get() + * + * @ingroup Slider + */ EAPI void elm_slider_horizontal_set(Evas_Object *obj, Eina_Bool horizontal) EINA_ARG_NONNULL(1); + + /** + * Retrieve the orientation of a given slider widget + * + * @param obj The slider object. + * @return @c EINA_TRUE, if @p obj is set to be @b horizontal, + * @c EINA_FALSE if it's @b vertical (and on errors). + * + * @see elm_slider_horizontal_set() for more details. + * + * @ingroup Slider + */ EAPI Eina_Bool elm_slider_horizontal_get(const Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Set the minimum and maximum values for the slider. + * + * @param obj The slider object. + * @param min The minimum value. + * @param max The maximum value. + * + * Define the allowed range of values to be selected by the user. + * + * If actual value is less than @p min, it will be updated to @p min. If it + * is bigger then @p max, will be updated to @p max. Actual value can be + * get with elm_slider_value_get(). + * + * By default, min is equal to 0.0, and max is equal to 1.0. + * + * @warning Maximum must be greater than minimum, otherwise behavior + * is undefined. + * + * @see elm_slider_min_max_get() + * + * @ingroup Slider + */ EAPI void elm_slider_min_max_set(Evas_Object *obj, double min, double max) EINA_ARG_NONNULL(1); + + /** + * Get the minimum and maximum values of the slider. + * + * @param obj The slider object. + * @param min Pointer where to store the minimum value. + * @param max Pointer where to store the maximum value. + * + * @note If only one value is needed, the other pointer can be passed + * as @c NULL. + * + * @see elm_slider_min_max_set() for details. + * + * @ingroup Slider + */ EAPI void elm_slider_min_max_get(const Evas_Object *obj, double *min, double *max) EINA_ARG_NONNULL(1); + + /** + * Set the value the slider displays. + * + * @param obj The slider object. + * @param val The value to be displayed. + * + * Value will be presented on the unit label following format specified with + * elm_slider_unit_format_set() and on indicator with + * elm_slider_indicator_format_set(). + * + * @warning The value must to be between min and max values. This values + * are set by elm_slider_min_max_set(). + * + * @see elm_slider_value_get() + * @see elm_slider_unit_format_set() + * @see elm_slider_indicator_format_set() + * @see elm_slider_min_max_set() + * + * @ingroup Slider + */ EAPI void elm_slider_value_set(Evas_Object *obj, double val) EINA_ARG_NONNULL(1); + + /** + * Get the value displayed by the spinner. + * + * @param obj The spinner object. + * @return The value displayed. + * + * @see elm_spinner_value_set() for details. + * + * @ingroup Slider + */ EAPI double elm_slider_value_get(const Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Invert a given slider widget's displaying values order + * + * @param obj The slider object. + * @param inverted Use @c EINA_TRUE to make @p obj inverted, + * @c EINA_FALSE to bring it back to default, non-inverted values. + * + * A slider may be @b inverted, in which state it gets its + * values inverted, with high vales being on the left or top and + * low values on the right or bottom, as opposed to normally have + * the low values on the former and high values on the latter, + * respectively, for horizontal and vertical modes. + * + * @see elm_slider_inverted_get() + * + * @ingroup Slider + */ EAPI void elm_slider_inverted_set(Evas_Object *obj, Eina_Bool inverted) EINA_ARG_NONNULL(1); + + /** + * Get whether a given slider widget's displaying values are + * inverted or not. + * + * @param obj The slider object. + * @return @c EINA_TRUE, if @p obj has inverted values, + * @c EINA_FALSE otherwise (and on errors). + * + * @see elm_slider_inverted_set() for more details. + * + * @ingroup Slider + */ EAPI Eina_Bool elm_slider_inverted_get(const Evas_Object *obj) EINA_ARG_NONNULL(1); + + /** + * Set whether to enlarge slider indicator (augmented knob) or not. + * + * @param obj The slider object. + * @param show @c EINA_TRUE will make it enlarge, @c EINA_FALSE will + * let the knob always at default size. + * + * By default, indicator will be bigger while dragged by the user. + * + * @warning It won't display values set with + * elm_slider_indicator_format_set() if you disable indicator. + * + * @ingroup Slider + */ EAPI void elm_slider_indicator_show_set(Evas_Object *obj, Eina_Bool show) EINA_ARG_NONNULL(1); + + /** + * Get whether a given slider widget's enlarging indicator or not. + * + * @param obj The slider object. + * @return @c EINA_TRUE, if @p obj is enlarging indicator, or + * @c EINA_FALSE otherwise (and on errors). + * + * @see elm_slider_indicator_show_set() for details. + * + * @ingroup Slider + */ EAPI Eina_Bool elm_slider_indicator_show_get(const Evas_Object *obj) EINA_ARG_NONNULL(1); - /* smart callbacks called: - * "changed" - Whenever the slider value is changed by the user. - * "slider,drag,start" - dragging the slider indicator around has started - * "slider,drag,stop" - dragging the slider indicator around has stopped - * "delay,changed" - A short time after the value is changed by the user. - * This will be called only when the user stops dragging for a very short - * period or when they release their finger/mouse, so it avoids possibly - * expensive reactions to the value change. + + /** + * @} */ /** diff --git a/src/lib/elm_slider.c b/src/lib/elm_slider.c index 7001c28..044ce93 100644 --- a/src/lib/elm_slider.c +++ b/src/lib/elm_slider.c @@ -1,43 +1,6 @@ #include #include "elm_priv.h" -/** - * @defgroup Slider Slider - * - * The slider adds a dragable “slider” widget for selecting the value of - * something within a range. - * - * - * A slider can be horizontal or vertical. It can contain an Icon and has a - * primary label as well as a units label (that is formatted with floating - * point values and thus accepts a printf-style format string, like - * “%1.2f units”. There is also an indicator string that may be somewhere - * else (like on the slider itself) that also accepts a format string like - * units. Label, Icon Unit and Indicator strings/objects are optional. - * - * A slider may be inverted which means values invert, with high vales being - * on the left or top and low values on the right or bottom (as opposed to - * normally being low on the left or top and high on the bottom and right). - * - * The slider should have its minimum and maximum values set by the - * application with elm_slider_min_max_set() and value should also be set by - * the application before use with elm_slider_value_set(). The span of the - * slider is its length (horizontally or vertically). This will be scaled by - * the object or applications scaling factor. At any point code can query the - * slider for its value with elm_slider_value_get(). - * - * Signals that you can add callbacks for are: - * - * "changed" - Whenever the slider value is changed by the user. - * "slider,drag,start" - dragging the slider indicator around has started - * "slider,drag,stop" - dragging the slider indicator around has stopped - * "delay,changed" - A short time after the value is changed by the user. - * This will be called only when the user stops dragging for - * a very short period or when they release their - * finger/mouse, so it avoids possibly expensive reactions to - * the value change. - */ - typedef struct _Widget_Data Widget_Data; struct _Widget_Data @@ -531,14 +494,6 @@ _elm_slider_label_get(const Evas_Object *obj, const char *item) return wd->label; } -/** - * Add a new slider to the parent - * - * @param parent The parent object - * @return The new object or NULL if it cannot be created - * - * @ingroup Slider - */ EAPI Evas_Object * elm_slider_add(Evas_Object *parent) { @@ -595,49 +550,18 @@ elm_slider_add(Evas_Object *parent) return obj; } -/** - * Set the label of the slider - * - * @param obj The slider object - * @param label The text label string in UTF-8 - * - * @ingroup Slider - */ EAPI void elm_slider_label_set(Evas_Object *obj, const char *label) { _elm_slider_label_set(obj, NULL, label); } -/** - * Get the label of the slider - * - * @param obj The slider object - * @return The text label string in UTF-8 - * - * @ingroup Slider - */ EAPI const char * elm_slider_label_get(const Evas_Object *obj) { return _elm_slider_label_get(obj, NULL); } -/** - * Set the icon object (leftmost widget) of the slider object. - * - * Once the icon object is set, a previously set one will be deleted. - * If you want to keep that old content object, use the - * elm_slider_icon_unset() function. - * - * @param obj The slider object - * @param icon The icon object - * - * @note If the object being set does not have minimum size hints set, - * it won't get properly displayed. - * - * @ingroup Slider - */ EAPI void elm_slider_icon_set(Evas_Object *obj, Evas_Object *icon) { @@ -659,18 +583,6 @@ elm_slider_icon_set(Evas_Object *obj, Evas_Object *icon) _sizing_eval(obj); } -/** - * Unset the leftmost widget of the slider, unparenting and - * returning it. - * - * @param obj The slider object - * @return the previously set icon sub-object of this slider, on - * success. - * - * @see elm_slider_icon_set() - * - * @ingroup Slider - */ EAPI Evas_Object * elm_slider_icon_unset(Evas_Object *obj) { @@ -690,15 +602,6 @@ elm_slider_icon_unset(Evas_Object *obj) return ret; } -/** - * Get the icon object of the slider object. This object is owned by - * the scrolled entry and should not be modified. - * - * @param obj The slider object - * @return The icon object - * - * @ingroup Slider - */ EAPI Evas_Object * elm_slider_icon_get(const Evas_Object *obj) { @@ -708,19 +611,6 @@ elm_slider_icon_get(const Evas_Object *obj) return wd->icon; } -/** - * Set the length of the dragable region of the slider - * - * This sets the minimum width or height (depending on orientation) of the - * area of the slider that allows the slider to be dragged around. This in - * turn affects the objects minimum size (along with icon label and unit - * text). Note that this will also get multiplied by the scale factor. - * - * @param obj The slider object - * @param size The length of the slider area - * - * @ingroup Slider - */ EAPI void elm_slider_span_size_set(Evas_Object *obj, Evas_Coord size) { @@ -741,19 +631,6 @@ elm_slider_span_size_set(Evas_Object *obj, Evas_Coord size) _sizing_eval(obj); } -/** - * Get the length of the dragable region of the slider - * - * This gets the minimum width or height (depending on orientation) of - * the area of the slider that allows the slider to be dragged - * around. Note that this will also get multiplied by the scale - * factor. - * - * @param obj The slider object - * @return The length of the slider area - * - * @ingroup Slider - */ EAPI Evas_Coord elm_slider_span_size_get(const Evas_Object *obj) { @@ -763,19 +640,6 @@ elm_slider_span_size_get(const Evas_Object *obj) return wd->size; } -/** - * Set the format string of the unit area - * - * If NULL, this disabls the unit area display. If not it sets the format - * string for the unit text. The unit text is provided a floating point - * value, so the unit text can display up to 1 floating point value. Note that - * this is optional. Use a format string such as "%1.2f meters" for example. - * - * @param obj The slider object - * @param units The format string for the units display - * - * @ingroup Slider - */ EAPI void elm_slider_unit_format_set(Evas_Object *obj, const char *units) { @@ -797,19 +661,6 @@ elm_slider_unit_format_set(Evas_Object *obj, const char *units) _sizing_eval(obj); } -/** - * Get the format string for the unit area - * - * The slider may also display a value (the value of the slider) somewhere - * (for example above the slider knob that is dragged around). This sets the - * format string for this. See elm_slider_unit_format_set() for more - * information on how this works. - * - * @param obj The slider object - * @return The format string for the unit display. - * - * @ingroup Slider - */ EAPI const char * elm_slider_unit_format_get(const Evas_Object *obj) { @@ -819,19 +670,6 @@ elm_slider_unit_format_get(const Evas_Object *obj) return wd->units; } -/** - * Set the format string for the indicator area - * - * The slider may also display a value (the value of the slider) somewhere - * (for example above the slider knob that is dragged around). This sets the - * format string for this. See elm_slider_unit_format_set() for more - * information on how this works. - * - * @param obj The slider object - * @param indicator The format string for the indicator display - * - * @ingroup Slider - */ EAPI void elm_slider_indicator_format_set(Evas_Object *obj, const char *indicator) { @@ -842,19 +680,6 @@ elm_slider_indicator_format_set(Evas_Object *obj, const char *indicator) _indicator_set(obj); } -/** - * Get the format string for the indicator area - * - * The slider may also display a value (the value of the slider) somewhere - * (for example above the slider knob that is dragged around). This sets the - * format string for this. See elm_slider_indicator_format_set() for more - * information on how this works. - * - * @param obj The slider object - * @return The format string for the indicator display. - * - * @ingroup Slider - */ EAPI const char * elm_slider_indicator_format_get(const Evas_Object *obj) { @@ -864,14 +689,6 @@ elm_slider_indicator_format_get(const Evas_Object *obj) return wd->indicator; } -/** - * Set orientation of the slider - * - * @param obj The slider object - * @param horizontal If set, the slider will be horizontal - * - * @ingroup Slider - */ EAPI void elm_slider_horizontal_set(Evas_Object *obj, Eina_Bool horizontal) { @@ -884,14 +701,6 @@ elm_slider_horizontal_set(Evas_Object *obj, Eina_Bool horizontal) _theme_hook(obj); } -/** - * Get orientation of the slider - * - * @param obj The slider object - * @return If @c EINA_TRUE the slider will be horizontal, else it is - * vertical. - * @ingroup Slider - */ EAPI Eina_Bool elm_slider_horizontal_get(const Evas_Object *obj) { @@ -901,17 +710,6 @@ elm_slider_horizontal_get(const Evas_Object *obj) return wd->horizontal; } -/** - * Set the minimum and maximum values for the slider - * - * Maximum mut be greater than minimum. - * - * @param obj The slider object - * @param min The minimum value - * @param max The maximum value - * - * @ingroup Slider - */ EAPI void elm_slider_min_max_set(Evas_Object *obj, double min, double max) { @@ -928,15 +726,6 @@ elm_slider_min_max_set(Evas_Object *obj, double min, double max) _indicator_set(obj); } -/** - * Get the minimum and maximum values for the slider - * - * @param obj The slider object - * @param min The pointer to store minimum value, may be @c NULL. - * @param max The pointer to store maximum value, may be @c NULL. - * - * @ingroup Slider - */ EAPI void elm_slider_min_max_get(const Evas_Object *obj, double *min, double *max) { @@ -949,14 +738,6 @@ elm_slider_min_max_get(const Evas_Object *obj, double *min, double *max) if (max) *max = wd->val_max; } -/** - * Set the value the slider indicates - * - * @param obj The slider object - * @param val The value (must be between min and max for the slider) - * - * @ingroup Slider - */ EAPI void elm_slider_value_set(Evas_Object *obj, double val) { @@ -972,14 +753,6 @@ elm_slider_value_set(Evas_Object *obj, double val) _indicator_set(obj); } -/** - * Get the value the slider has - * - * @param obj The slider object - * @return The value of the slider - * - * @ingroup Slider - */ EAPI double elm_slider_value_get(const Evas_Object *obj) { @@ -989,19 +762,6 @@ elm_slider_value_get(const Evas_Object *obj) return wd->val; } -/** - * Invert the slider display - * - * Normally the slider will display and interpret values from low to high - * and when horizontal that is left to right. When vertical that is top - * to bottom. This inverts this (so from right to left or bottom to top) if - * inverted is set to 1. - * - * @param obj The slider object - * @param inverted The inverted flag. 1 == inverted, 0 == normal - * - * @ingroup Slider - */ EAPI void elm_slider_inverted_set(Evas_Object *obj, Eina_Bool inverted) { @@ -1021,13 +781,6 @@ elm_slider_inverted_set(Evas_Object *obj, Eina_Bool inverted) _indicator_set(obj); } -/** - * Get if the slider display is inverted (backwards) - * - * @param obj The slider object - * @return If @c EINA_TRUE the slider will be inverted. - * @ingroup Slider - */ EAPI Eina_Bool elm_slider_inverted_get(const Evas_Object *obj) { @@ -1037,19 +790,6 @@ elm_slider_inverted_get(const Evas_Object *obj) return wd->inverted; } -/** - * Set the format function pointer for the indicator area - * - * Set the callback function to format the indicator string. - * See elm_slider_indicator_format_set() for more info on how this works. - * - * @param obj The slider object - * @param indicator The format string for the indicator display - * @param func The indicator format function - * @param free_func The freeing function for the format string - * - * @ingroup Slider - */ EAPI void elm_slider_indicator_format_function_set(Evas_Object *obj, const char *(*func)(double val), void (*free_func)(const char *str)) { @@ -1061,19 +801,6 @@ elm_slider_indicator_format_function_set(Evas_Object *obj, const char *(*func)(d _indicator_set(obj); } -/** - * Set the format function pointer for the units area - * - * Set the callback function to format the indicator string. - * See elm_slider_units_format_set() for more info on how this works. - * - * @param obj The slider object - * @param indicator The format string for the units display - * @param func The units format function - * @param free_func The freeing function for the format string - * - * @ingroup Slider - */ EAPI void elm_slider_units_format_function_set(Evas_Object *obj, const char *(*func)(double val), void (*free_func)(const char *str)) { @@ -1085,21 +812,6 @@ elm_slider_units_format_function_set(Evas_Object *obj, const char *(*func)(doubl _indicator_set(obj); } -/** - * Set the end object (rightmost widget) of the slider object. - * - * Once the end object is set, a previously set one will be deleted. - * If you want to keep that old content object, use the - * elm_button_end_unset() function. - * - * @param obj The slider object - * @param end The end object - * - * @note If the object being set does not have minimum size hints set, - * it won't get properly displayed. - * - * @ingroup Slider - */ EAPI void elm_slider_end_set(Evas_Object *obj, Evas_Object *end) { @@ -1121,18 +833,6 @@ elm_slider_end_set(Evas_Object *obj, Evas_Object *end) _sizing_eval(obj); } -/** - * Unset the rightmost widget of the slider, unparenting and - * returning it. - * - * @param obj The slider object - * @return the previously set end sub-object of this slider, on - * success. - * - * @see elm_slider_end_set() - * - * @ingroup Slider - */ EAPI Evas_Object * elm_slider_end_unset(Evas_Object *obj) { @@ -1152,15 +852,6 @@ elm_slider_end_unset(Evas_Object *obj) return ret; } -/** - * Get the end icon object of the slider object. This object is owned - * by the scrolled entry and should not be modified. - * - * @param obj The slider object - * @return The end icon object - * - * @ingroup Slider - */ EAPI Evas_Object * elm_slider_end_get(const Evas_Object *obj) { @@ -1170,18 +861,6 @@ elm_slider_end_get(const Evas_Object *obj) return wd->end; } -/** - * Set whether to the slider indicator (augmented knob) at all. - * - * @param obj The slider object - * @param show @c EINA_TRUE will make it show it, @c EINA_FALSE will - * let the knob alwayes at default size. - * - * @note It will conflict with elm_slider_indicator_format_set(), if - * you wanted those effects. - * - * @ingroup Slider - */ EAPI void elm_slider_indicator_show_set(Evas_Object *obj, Eina_Bool show) { @@ -1197,16 +876,6 @@ elm_slider_indicator_show_set(Evas_Object *obj, Eina_Bool show) } } -/** - * Get the state of indicator in the slider (if it's being shown or - * not). - * - * @param obj The slider object - * @return @c EINA_TRUE if the indicator is being shown, @c EINA_FALSE - * otherwise. - * - * @ingroup Slider - */ EAPI Eina_Bool elm_slider_indicator_show_get(const Evas_Object *obj) { -- 2.7.4