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GtkTickCallback: document use of G_SOURCE_CONTINUE/REMOVE for return value

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Document that G_SOURCE_CONTINUE and G_SOURCE_REMOVE are the preferred
return values from a tick callback.
This commit is contained in:
Owen W. Taylor 2013-02-14 16:24:27 -05:00
parent e2705544ab
commit 7bb07317f3
3 changed files with 6 additions and 6 deletions
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6
gtk/gtkwidget.c
View File

@ -4584,9 +4584,9 @@ gtk_widget_on_frame_clock_update (GdkFrameClock *frame_clock,
ref_tick_callback_info (info); ref_tick_callback_info (info);
if (!info->destroyed) if (!info->destroyed)
{ {
if (!info->callback (widget, if (info->callback (widget,
frame_clock, frame_clock,
info->user_data)) info->user_data) == G_SOURCE_REMOVE)
{ {
destroy_tick_callback_info (widget, info, l); destroy_tick_callback_info (widget, info, l);
} }

4
gtk/gtkwidget.h
View File

@ -94,8 +94,8 @@ typedef void (*GtkCallback) (GtkWidget *widget,
* *
* Callback type for adding a function to update animations. See gtk_widget_add_tick_callback(). * Callback type for adding a function to update animations. See gtk_widget_add_tick_callback().
* *
* Returns: %TRUE if the tick callback should continue to be called, * Returns: %G_SOURCE_CONTINUE if the tick callback should continue to be called,
* %FALSE if the tick callback should be removed. * %G_SOURCE_REMOVE if the tick callback should be removed.
*/ */
typedef gboolean (*GtkTickCallback) (GtkWidget *widget, typedef gboolean (*GtkTickCallback) (GtkWidget *widget,
GdkFrameClock *frame_clock, GdkFrameClock *frame_clock,

2
tests/animated-resizing.c
View File

@ -251,7 +251,7 @@ tick_callback (GtkWidget *widget,
scaled_time = (frame_time - start_frame_time) / (CYCLE_TIME * 1000000); scaled_time = (frame_time - start_frame_time) / (CYCLE_TIME * 1000000);
on_frame (scaled_time - floor (scaled_time)); on_frame (scaled_time - floor (scaled_time));
return TRUE; return G_SOURCE_CONTINUE;
} }
static gboolean static gboolean