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st: Make st_scroll_view_update_fade_effect() public

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Using fixed fade offsets is not always appropriate, this will allow
to set them from code instead.

https://bugzilla.gnome.org/show_bug.cgi?id=707409
This commit is contained in:
Florian Müllner 2013-09-04 13:28:31 +02:00
parent b403845d03
commit 6fb044f351
2 changed files with 10 additions and 7 deletions
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14
src/st/st-scroll-view.c
View File

@ -160,19 +160,19 @@ st_scroll_view_get_property (GObject *object,
/**
* st_scroll_view_update_fade_effect:
* @self: a #StScrollView
* @scroll: a #StScrollView
* @vfade_offset: The length of the veritcal fade effect, in pixels.
* @hfade_offset: The length of the horizontal fade effect, in pixels.
*
* Sets the height of the fade area area in pixels. A value of 0
* disables the effect.
*/
static void
st_scroll_view_update_fade_effect (StScrollView *self,
void
st_scroll_view_update_fade_effect (StScrollView *scroll,
float vfade_offset,
float hfade_offset)
{
StScrollViewPrivate *priv = ST_SCROLL_VIEW (self)->priv;
StScrollViewPrivate *priv = ST_SCROLL_VIEW (scroll)->priv;
/* A fade amount of more than 0 enables the effect. */
if (vfade_offset > 0. || hfade_offset > 0.)
@ -180,7 +180,7 @@ st_scroll_view_update_fade_effect (StScrollView *self,
if (priv->fade_effect == NULL) {
priv->fade_effect = g_object_new (ST_TYPE_SCROLL_VIEW_FADE, NULL);
clutter_actor_add_effect_with_name (CLUTTER_ACTOR (self), "fade",
clutter_actor_add_effect_with_name (CLUTTER_ACTOR (scroll), "fade",
CLUTTER_EFFECT (priv->fade_effect));
}
@ -194,12 +194,12 @@ st_scroll_view_update_fade_effect (StScrollView *self,
else
{
if (priv->fade_effect != NULL) {
clutter_actor_remove_effect (CLUTTER_ACTOR (self), CLUTTER_EFFECT (priv->fade_effect));
clutter_actor_remove_effect (CLUTTER_ACTOR (scroll), CLUTTER_EFFECT (priv->fade_effect));
priv->fade_effect = NULL;
}
}
clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
clutter_actor_queue_redraw (CLUTTER_ACTOR (scroll));
}
static void

3
src/st/st-scroll-view.h
View File

@ -87,6 +87,9 @@ gboolean st_scroll_view_get_overlay_scrollbars (StScrollView *scroll);
void st_scroll_view_set_policy (StScrollView *scroll,
GtkPolicyType hscroll,
GtkPolicyType vscroll);
void st_scroll_view_update_fade_effect (StScrollView *scroll,
float vfade_offset,
float hfade_offset);
G_END_DECLS