elementary: Add to the progressbar widget a changed signal to be emitted when the value is changed. Patch from Daniel Willmann. Thx

SVN revision: 72709

legacy/elementary/ChangeLog

@@ -127,10 +127,12 @@
 	_Elm_Win_Smart_Data to allow grouping based on engine.
 
 2012-05-29 Rob Bradford
+
 	* Move X related cursor items into their own substruct of Elm_Cursor
 	to make supporting cursors on other platforms cleaner.
 
 2012-05-30 Rob Bradford
+
 	* Add support for setting the cursor under Wayland:
 	* Introduce a configure option and #define to as per other engines
 	* Add always-built API function to allow identification of running
@@ -190,13 +192,21 @@
           After the item is long-pressed, it can be moved.
 
 2012-06-14 Michael Bouchaud
+
 	* Add an enum to Elm_Calendar_Mark_Repeat_Type:
 	ELM_CALENDAR_LAST_DAY_OF_MONTH
 
 2012-06-15 Michael Bouchaud
+
 	* elm_progressbar: elm_progressbar_format_function_set to add a callback
 	function to format the unit string.
 
 2012-06-16 Davide Andreoli
+
 	* elm_map: add elm_map_overlay_del_cb_set to be notify when
 	an overlay is deleted.
+
+2012-06-23 Daniel Willmann
+
+        * elm_progressbar: Add "changed" signal to be emitted when the value
+        is changed.

legacy/elementary/NEWS

@@ -14,6 +14,7 @@ Additions:
    * Add ELM_CALENDAR_LAST_DAY_OF_MONTH enum type
    * Add elm_progressbar_format_function_set API function
    * Add elm_map_overlay_del_cb_set API function
+   * Add "changed" signal to the progressbar widgets
 
 Fixes:
 

legacy/elementary/src/lib/elm_progressbar.c

@@ -4,6 +4,8 @@
 
 static const char PROGRESSBAR_SMART_NAME[] = "elm_progressbar";
 
+static const char SIG_CHANGED[] = "changed";
+
 #define MIN_RATIO_LVL 0.0
 #define MAX_RATIO_LVL 1.0
 
@@ -54,11 +56,18 @@ struct _Elm_Progressbar_Smart_Data
         ((obj), PROGRESSBAR_SMART_NAME, __func__)) \
     return
 
+/* smart callbacks coming from elm progressbar objects (besides the
+ * ones coming from elm layout): */
+static const Evas_Smart_Cb_Description _smart_callbacks[] = {
+   {SIG_CHANGED, ""},
+   {NULL, NULL}
+};
+
 /* Inheriting from elm_layout. Besides, we need no more than what is
  * there */
 EVAS_SMART_SUBCLASS_NEW
   (PROGRESSBAR_SMART_NAME, _elm_progressbar, Elm_Layout_Smart_Class,
-  Elm_Layout_Smart_Class, elm_layout_smart_class_get, NULL);
+  Elm_Layout_Smart_Class, elm_layout_smart_class_get, _smart_callbacks);
 
 static const Elm_Layout_Part_Alias_Description _content_aliases[] =
 {
@@ -364,6 +373,7 @@ elm_progressbar_value_set(Evas_Object *obj,
 
    _val_set(obj);
    _units_set(obj);
+   evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
 }
 
 EAPI double

legacy/elementary/src/lib/elm_progressbar.h

@@ -33,6 +33,10 @@
  * This widget inherits from the @ref Layout one, so that all the
  * functions acting on it also work for progress bar objects.
  *
+ * This widget emits the following signals, besides the ones sent from
+ * @ref Layout:
+ * @li @c "changed" - when the value is changed
+ *
  * This widget has the following styles:
  * - @c "default"
  * - @c "wheel" (simple style, no text, no progression, only