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GtkStyleContext: Add animation machinery.

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Animation regions are confined through gtk_style_context_[push|pop]_animatable_region,
anything that's painted between these calls will be invalidated if an animation starts
for any of the regions in the stack.

gtk_style_context_notify_state_change() may be called from widgets to indicate a
change for a given GtkStateType, in that case an animation will be started if there
is an animation description for the widget/state.
This commit is contained in:
Carlos Garnacho
2010-08-19 22:35:42 +02:00
parent bbd0c5a2a2
commit 61a0544b8b
3 changed files with 461 additions and 13 deletions
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29
gtk/gtkstylecontext.h
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@ -75,7 +75,8 @@ void gtk_style_context_set_state (GtkStyleContext *context,
GtkStateFlags gtk_style_context_get_state (GtkStyleContext *context);
gboolean gtk_style_context_is_state_set (GtkStyleContext *context,
GtkStateType state);
GtkStateType state,
gdouble *progress);
void gtk_style_context_set_path (GtkStyleContext *context,
GtkWidgetPath *path);
@ -128,10 +129,36 @@ gboolean gtk_style_context_lookup_color (GtkStyleContext *context,
const gchar *color_name,
GdkColor *color);
void gtk_style_context_notify_state_change (GtkStyleContext *context,
GdkWindow *window,
gpointer region_id,
GtkStateType state,
gboolean state_value);
void gtk_style_context_push_animatable_region (GtkStyleContext *context,
gpointer region_id);
void gtk_style_context_pop_animatable_region (GtkStyleContext *context);
/* Semi-private API */
const GValue * _gtk_style_context_peek_style_property (GtkStyleContext *context,
GType widget_type,
GParamSpec *pspec);
void _gtk_style_context_invalidate_animation_areas (GtkStyleContext *context);
void _gtk_style_context_coalesce_animation_areas (GtkStyleContext *context);
/* Animation for state changes */
void gtk_style_context_state_transition_start (GtkStyleContext *context,
gpointer identifier,
GtkWidget *widget,
GtkStateType state,
gboolean value,
GdkRectangle *rect);
void gtk_style_context_state_transition_update (GtkStyleContext *context,
gpointer identifier,
GdkRectangle *rect,
GtkStateType state);
void gtk_style_context_state_transition_stop (GtkStyleContext *context,
gpointer identifier);
/* Paint methods */
void gtk_render_check (GtkStyleContext *context,