elm_ratingbar: add ratingbar

diff --git a/src/lib/Elementary.h.in b/src/lib/Elementary.h.in
index e35ceec..46681d3 100755 (executable)
--- a/src/lib/Elementary.h.in
+++ b/src/lib/Elementary.h.in
@@ -2235,6 +2235,17 @@ extern "C" {
        EAPI void elm_wipercontrol_below_content_set (Evas_Object *obj, Evas_Object *content);
        EAPI void elm_wipercontrol_above_content_set (Evas_Object *obj, Evas_Object *content);
        EAPI Evas_Object * elm_wipercontrol_add(Evas_Object *parent);
+
+    /* ratingbar */
+   EAPI Evas_Object *elm_ratingbar_add(Evas_Object *parent);
+   EAPI void elm_ratingbar_rating_set(Evas_Object *obj, int rating);
+   EAPI int elm_ratingbar_rating_get(Evas_Object *obj);
+   /* smart callback called:
+    * "changed" - when a rating is changed
+    */
+   /* available styles:
+    * default
+    */
    
 #ifdef __cplusplus
 }

diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am
index 47c0a4a..b2436f1 100755 (executable)
--- a/src/lib/Makefile.am
+++ b/src/lib/Makefile.am
@@ -108,6 +108,7 @@ elm_viewflipper.c \
 elm_gallery.c \
 elm_slidingdrawer.c \ 
 elm_wipercontrol.c \
+elm_ratingbar.c \
 \
 elc_anchorblock.c \
 elc_anchorview.c \

diff --git a/src/lib/elm_ratingbar.c b/src/lib/elm_ratingbar.c
new file mode 100755 (executable)
index 0000000..7a562dc
--- /dev/null
+++ b/src/lib/elm_ratingbar.c
@@ -0,0 +1,277 @@
+#include <Elementary.h>
+#include "elm_priv.h"
+
+/**
+ * @addtogroup Ratingbar Ratingbar
+ *
+ * This is a ratingbar.
+ */
+
+
+#define RATING_MAX 5                   
+
+typedef struct _Widget_Data Widget_Data;
+struct _Widget_Data {
+       Evas_Object *base;
+       Evas_Coord x, y, w, h;
+       int rating;
+       bool pressed;
+};
+
+static void _del_hook(Evas_Object *obj);
+static void _theme_hook(Evas_Object *obj);
+static void _sizing_eval(Evas_Object *obj);
+static void _update_ratingbar(Evas_Object *obj);
+
+
+static void
+_del_hook(Evas_Object *obj)
+{
+       Widget_Data *wd = elm_widget_data_get(obj);
+       if (!wd) return;
+       
+}
+
+static void
+_theme_hook(Evas_Object *obj)
+{
+       Widget_Data *wd = elm_widget_data_get(obj);
+       if (!wd) return;
+       
+       _elm_theme_object_set(obj, wd->base, "ratingbar", "base", elm_widget_style_get(obj));
+       _update_ratingbar(obj);
+       _sizing_eval(obj);
+}
+
+static void
+_sizing_eval(Evas_Object *obj)
+{
+       Widget_Data *wd = elm_widget_data_get(obj);
+       Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
+       if (!wd) return;
+       
+       elm_coords_finger_size_adjust(1, &minw, 1, &minh);
+       edje_object_size_min_restricted_calc(wd->base, &minw, &minh, minw, minh);
+       elm_coords_finger_size_adjust(1, &minw, 1, &minh);
+       evas_object_size_hint_min_set(obj, minw, minh);
+       evas_object_size_hint_max_set(obj, maxw, maxh);
+}
+
+static void
+_changed(Evas_Object *obj)
+{
+       Widget_Data *wd = elm_widget_data_get(obj);
+       if (!wd) return;
+       evas_object_smart_callback_call(obj, "changed", NULL);
+}
+
+static void
+_update_ratingbar(Evas_Object *obj)
+{
+       Widget_Data *wd = elm_widget_data_get(obj);
+       char partname[20] = {0,};
+       int i;
+       if (!wd) return;        
+
+       for(i=1; i<=RATING_MAX; i++)
+       {
+               sprintf(partname, "elm.star.%d", i);
+
+               if(wd->pressed == FALSE){
+                       if(i <= wd->rating)     edje_object_signal_emit(wd->base, "elm,star,selected", partname);               
+                       else    edje_object_signal_emit(wd->base, "elm,star,unselected", partname);
+               }else{
+                       if(i <= wd->rating)     edje_object_signal_emit(wd->base, "elm,star,pressed,on", partname);             
+                       else    edje_object_signal_emit(wd->base, "elm,star,pressed,off", partname);
+               }
+       }
+               
+       _sizing_eval(obj);
+}
+
+static int
+_determine_rating(Evas_Coord x, Evas_Coord w, Evas_Coord ev_x)
+{
+       int rating = 0;
+       
+       if(ev_x < x){
+               rating = 0;
+       }else if(ev_x < x + 0.2*w){
+               rating = 1;
+       }else if(ev_x < x + 0.4*w){
+               rating = 2;
+       }else if(ev_x < x + 0.6*w){
+               rating = 3;
+       }else if(ev_x < x + 0.8*w){
+               rating = 4;
+       }else if(ev_x < x + w){
+               rating = 5;
+       }else{
+               rating = 5;
+       }
+
+       return rating;
+}
+
+static void 
+_resize_cb(void *data, Evas *evas, Evas_Object *obj, void *event)
+{
+       Widget_Data *wd = elm_widget_data_get(data);    
+       if (!wd) return;
+
+       evas_object_geometry_get(obj, NULL, NULL, &wd->w, &wd->h);
+}
+
+static void 
+_move_cb(void *data, Evas *evas, Evas_Object *obj, void *event)
+{
+       Widget_Data *wd = elm_widget_data_get(data);
+       if (!wd) return;
+
+       evas_object_geometry_get(obj, &wd->x, &wd->y, NULL, NULL);
+}
+
+static void
+_mouse_down(void *data, Evas *e, Evas_Object *obj, void *event_info)
+{
+       Widget_Data *wd = elm_widget_data_get(data);
+       Evas_Event_Mouse_Down *ev = event_info;
+       if (!wd) return;        
+       int rating_old = wd->rating;
+
+       wd->pressed = TRUE;
+       wd->rating = _determine_rating(wd->x, wd->w, ev->canvas.x);
+       _update_ratingbar(data);        
+       
+       if(wd->rating != rating_old)    
+               _changed(data);
+}
+
+static void
+_mouse_move(void *data, Evas *e, Evas_Object *obj, void *event_info)
+{
+       Widget_Data *wd = elm_widget_data_get(data);
+       Evas_Event_Mouse_Move *ev = event_info;
+       if (!wd || !ev->buttons) return;
+       int rating_old = wd->rating;
+
+       wd->pressed = TRUE;
+       wd->rating = _determine_rating(wd->x, wd->w, ev->cur.canvas.x);
+       _update_ratingbar(data);
+       
+       if(wd->rating != rating_old)    
+               _changed(data);
+}
+
+static void
+_mouse_up(void *data, Evas *e, Evas_Object *obj, void *event_info)
+{
+       Widget_Data *wd = elm_widget_data_get(data);
+       Evas_Event_Mouse_Up *ev = event_info;
+       if (!wd) return;
+       int rating_old = wd->rating;
+
+       wd->pressed = FALSE;
+       wd->rating  = _determine_rating(wd->x, wd->w, ev->canvas.x);
+       _update_ratingbar(data);
+
+       if(wd->rating != rating_old)    
+               _changed(data);
+}
+
+static void
+_event_init(Evas_Object *obj)
+{
+       Widget_Data *wd = elm_widget_data_get(obj);
+       if(!wd || !wd->base)    return;
+
+       evas_object_event_callback_add(wd->base, EVAS_CALLBACK_RESIZE, _resize_cb, obj);
+       evas_object_event_callback_add(wd->base, EVAS_CALLBACK_MOVE, _move_cb, obj);
+       evas_object_event_callback_add(wd->base, EVAS_CALLBACK_MOUSE_DOWN, _mouse_down, obj);
+       evas_object_event_callback_add(wd->base, EVAS_CALLBACK_MOUSE_MOVE, _mouse_move, obj);
+       evas_object_event_callback_add(wd->base, EVAS_CALLBACK_MOUSE_UP, _mouse_up, obj);
+}
+
+/**
+ * Add a new ratingbar to the parent
+ *
+ * @param parent The parent object
+ * @return The new object or NULL if it cannot be created
+ *
+ * @ingroup Ratingbar
+ */
+EAPI Evas_Object *
+elm_ratingbar_add(Evas_Object *parent)
+{
+       Evas_Object *obj;
+       Evas *e;
+       Widget_Data *wd;
+
+       wd = ELM_NEW(Widget_Data);
+       e = evas_object_evas_get(parent);
+       obj = elm_widget_add(e);
+       elm_widget_type_set(obj, "ratingbar");
+       elm_widget_sub_object_add(parent, obj);
+       elm_widget_data_set(obj, wd);
+
+       elm_widget_del_hook_set(obj, _del_hook);
+       elm_widget_theme_hook_set(obj, _theme_hook);
+       
+       wd->base = edje_object_add(e);
+       _elm_theme_object_set(obj, wd->base, "ratingbar", "base", "default");
+       elm_widget_resize_object_set(obj, wd->base);
+       evas_object_show(wd->base);
+
+       wd->rating = 0;
+       wd->pressed = FALSE;
+       
+       _event_init(obj);
+       _update_ratingbar(obj);
+
+       return obj;
+}
+
+/**
+ * Set the current rating
+ *
+ * @param obj The ratingbar object
+ * @param rating The current rating 
+ *
+ * @ingroup Ratingbar
+ */
+EAPI void
+elm_ratingbar_rating_set(Evas_Object *obj, int rating)
+{
+       Widget_Data *wd = elm_widget_data_get(obj);
+       if (!wd) return;
+
+       if(rating < 0 || rating > RATING_MAX){
+               fprintf(stderr, "Invalid the value of rating\n");
+               return;
+       }
+
+       if(wd->rating == rating) return;
+
+       wd->rating = rating;
+       _changed(obj);
+       _update_ratingbar(obj);
+}
+
+/**
+ * Get the current rating
+ *
+ * @param obj The ratingbar object 
+ * @return The current rating
+ *
+ * @ingroup Ratingbar
+ */
+EAPI int
+elm_ratingbar_rating_get(Evas_Object *obj)
+{
+       Widget_Data *wd = elm_widget_data_get(obj);
+       if (!wd) return 0;
+
+       return wd->rating;
+}
+
+