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css: Complete the cross-fade implementation

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We need to actually compute the images. Otherwise,
bad things happen when we try to draw.

https://bugzilla.gnome.org/show_bug.cgi?id=767391
This commit is contained in:
Matthias Clasen 2016-09-06 06:37:47 -04:00
parent c2ab49e963
commit e51fd7cb18
1 changed files with 22 additions and 0 deletions
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22
gtk/gtkcssimagecrossfade.c
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@ -227,6 +227,27 @@ gtk_css_image_cross_fade_print (GtkCssImage *image,
g_string_append (string, ")");
}
static GtkCssImage *
gtk_css_image_cross_fade_compute (GtkCssImage *image,
guint property_id,
GtkStyleProviderPrivate *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
GtkCssImageCrossFade *cross_fade = GTK_CSS_IMAGE_CROSS_FADE (image);
GtkCssImage *start, *end, *computed;
start = _gtk_css_image_compute (cross_fade->start, property_id, provider, style, parent_style);
end = _gtk_css_image_compute (cross_fade->end, property_id, provider, style, parent_style);
computed = _gtk_css_image_cross_fade_new (start, end, cross_fade->progress);
g_object_unref (start);
g_object_unref (end);
return computed;
}
static void
gtk_css_image_cross_fade_dispose (GObject *object)
{
@ -250,6 +271,7 @@ _gtk_css_image_cross_fade_class_init (GtkCssImageCrossFadeClass *klass)
image_class->draw = gtk_css_image_cross_fade_draw;
image_class->parse = gtk_css_image_cross_fade_parse;
image_class->print = gtk_css_image_cross_fade_print;
image_class->compute = gtk_css_image_cross_fade_compute;
object_class->dispose = gtk_css_image_cross_fade_dispose;
}