themingengine: add gtk_theming_engine_render_icon()

Renders a pixbuf in the provided rectangle, applying effects such as
'icon-shadow'.
This commit is contained in:
Cosimo Cecchi
2011-06-06 10:23:06 -04:00
committed by Benjamin Otte
parent b6b66803c0
commit 2446aef0ea
2 changed files with 45 additions and 1 deletions

View File

@ -177,6 +177,11 @@ static void gtk_theming_engine_render_activity (GtkThemingEngine *engine,
static GdkPixbuf * gtk_theming_engine_render_icon_pixbuf (GtkThemingEngine *engine, static GdkPixbuf * gtk_theming_engine_render_icon_pixbuf (GtkThemingEngine *engine,
const GtkIconSource *source, const GtkIconSource *source,
GtkIconSize size); GtkIconSize size);
static void gtk_theming_engine_render_icon (GtkThemingEngine *engine,
cairo_t *cr,
GdkPixbuf *pixbuf,
gdouble x,
gdouble y);
G_DEFINE_TYPE (GtkThemingEngine, gtk_theming_engine, G_TYPE_OBJECT) G_DEFINE_TYPE (GtkThemingEngine, gtk_theming_engine, G_TYPE_OBJECT)
@ -215,6 +220,7 @@ gtk_theming_engine_class_init (GtkThemingEngineClass *klass)
object_class->set_property = gtk_theming_engine_impl_set_property; object_class->set_property = gtk_theming_engine_impl_set_property;
object_class->get_property = gtk_theming_engine_impl_get_property; object_class->get_property = gtk_theming_engine_impl_get_property;
klass->render_icon = gtk_theming_engine_render_icon;
klass->render_check = gtk_theming_engine_render_check; klass->render_check = gtk_theming_engine_render_check;
klass->render_option = gtk_theming_engine_render_option; klass->render_option = gtk_theming_engine_render_option;
klass->render_arrow = gtk_theming_engine_render_arrow; klass->render_arrow = gtk_theming_engine_render_arrow;
@ -3230,3 +3236,35 @@ gtk_theming_engine_render_icon_pixbuf (GtkThemingEngine *engine,
return stated; return stated;
} }
static void
gtk_theming_engine_render_icon (GtkThemingEngine *engine,
cairo_t *cr,
GdkPixbuf *pixbuf,
gdouble x,
gdouble y)
{
GtkStateFlags state;
GtkShadow *icon_shadow;
state = gtk_theming_engine_get_state (engine);
cairo_save (cr);
gdk_cairo_set_source_pixbuf (cr, pixbuf, x, y);
gtk_theming_engine_get (engine, state,
"icon-shadow", &icon_shadow,
NULL);
if (icon_shadow != NULL)
{
_gtk_icon_shadow_paint (icon_shadow, cr);
_gtk_shadow_unref (icon_shadow);
}
cairo_paint (cr);
cairo_restore (cr);
}

View File

@ -69,6 +69,7 @@ struct _GtkThemingEngine
* @render_activity: Renders an area displaying activity, such as in #GtkSpinner, * @render_activity: Renders an area displaying activity, such as in #GtkSpinner,
* or #GtkProgressBar. * or #GtkProgressBar.
* @render_icon_pixbuf: Renders an icon as a #GdkPixbuf. * @render_icon_pixbuf: Renders an icon as a #GdkPixbuf.
* @render_icon: Renders an icon given as a #GdkPixbuf.
* *
* Base class for theming engines. * Base class for theming engines.
*/ */
@ -168,9 +169,14 @@ struct _GtkThemingEngineClass
GdkPixbuf * (* render_icon_pixbuf) (GtkThemingEngine *engine, GdkPixbuf * (* render_icon_pixbuf) (GtkThemingEngine *engine,
const GtkIconSource *source, const GtkIconSource *source,
GtkIconSize size); GtkIconSize size);
void (* render_icon) (GtkThemingEngine *engine,
cairo_t *cr,
GdkPixbuf *pixbuf,
gdouble x,
gdouble y);
/*< private >*/ /*< private >*/
gpointer padding[16]; gpointer padding[15];
}; };
GType gtk_theming_engine_get_type (void) G_GNUC_CONST; GType gtk_theming_engine_get_type (void) G_GNUC_CONST;