Add gtk_widget_add_tick_callback(), remove GtkTimeline, etc.

Add a very simple GtkWidget function for an "tick" callback, which
is connected to the ::update signal of GdkFrameClock.

Remove:

 - GtkTimeline. The consensus is that it is too complex.
 - GdkPaintClockTarget. In the rare cases where tick callbacks
    aren't sufficient, it's possible to track the
    paint clock with ::realize/::unrealize/::hierarchy-changed.

GtkTimeline is kept using ::update directly to allow using a GtkTimeline
with a paint clock but no widget.

1 files changed, 0 insertions, 20 deletions

diff --git a/gdk/gdkframeclock.h b/gdk/gdkframeclock.h
index 8d79f90a96..ba6a59f40a 100644
--- a/gdk/gdkframeclock.h
+++ b/gdk/gdkframeclock.h
@@ -37,26 +37,6 @@ G_BEGIN_DECLS
 
 typedef struct _GdkFrameClock                GdkFrameClock;
 typedef struct _GdkFrameClockInterface       GdkFrameClockInterface;
-typedef struct _GdkFrameClockTarget          GdkFrameClockTarget;
-typedef struct _GdkFrameClockTargetInterface GdkFrameClockTargetInterface;
-
-#define GDK_TYPE_FRAME_CLOCK_TARGET             (gdk_frame_clock_target_get_type ())
-#define GDK_FRAME_CLOCK_TARGET(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_FRAME_CLOCK_TARGET, GdkFrameClockTarget))
-#define GDK_IS_FRAME_CLOCK_TARGET(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_FRAME_CLOCK_TARGET))
-#define GDK_FRAME_CLOCK_TARGET_GET_IFACE(inst)  (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GDK_TYPE_FRAME_CLOCK_TARGET, GdkFrameClockTargetInterface))
-
-struct _GdkFrameClockTargetInterface
-{
-  GTypeInterface base_iface;
-
-  void (*set_clock) (GdkFrameClockTarget *target,
-                     GdkFrameClock       *clock);
-};
-
-GType gdk_frame_clock_target_get_type (void) G_GNUC_CONST;
-
-void gdk_frame_clock_target_set_clock (GdkFrameClockTarget *target,
-                                       GdkFrameClock       *clock);
 
 #define GDK_TYPE_FRAME_CLOCK             (gdk_frame_clock_get_type ())
 #define GDK_FRAME_CLOCK(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_FRAME_CLOCK, GdkFrameClock))