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/*
* Copyright © 2018 Benjamin Otte
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gtkrendernodepaintableprivate.h"
#include "gtksnapshot.h"
struct _GtkRenderNodePaintable
{
GObject parent_instance;
GskRenderNode *node;
graphene_rect_t bounds;
};
struct _GtkRenderNodePaintableClass
{
GObjectClass parent_class;
};
static void
gtk_render_node_paintable_paintable_snapshot (GdkPaintable *paintable,
GdkSnapshot *snapshot,
double width,
double height)
{
GtkRenderNodePaintable *self = GTK_RENDER_NODE_PAINTABLE (paintable);
if (self->bounds.size.width <= 0 ||
self->bounds.size.height <= 0 ||
self->node == NULL)
return;
gtk_snapshot_save (snapshot);
gtk_snapshot_scale (snapshot,
width / (self->bounds.size.width),
height / (self->bounds.size.height));
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (-self->bounds.origin.x, -self->bounds.origin.y));
gtk_snapshot_push_clip (snapshot, &self->bounds);
gtk_snapshot_append_node (snapshot, self->node);
//gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 1, 0, 0, 1 }, &self->bounds);
gtk_snapshot_pop (snapshot);
gtk_snapshot_restore (snapshot);
}
static GdkPaintableFlags
gtk_render_node_paintable_paintable_get_flags (GdkPaintable *paintable)
{
return GDK_PAINTABLE_STATIC_CONTENTS | GDK_PAINTABLE_STATIC_SIZE;
}
static int
gtk_render_node_paintable_paintable_get_intrinsic_width (GdkPaintable *paintable)
{
GtkRenderNodePaintable *self = GTK_RENDER_NODE_PAINTABLE (paintable);
return ceilf (self->bounds.size.width);
}
static int
gtk_render_node_paintable_paintable_get_intrinsic_height (GdkPaintable *paintable)
{
GtkRenderNodePaintable *self = GTK_RENDER_NODE_PAINTABLE (paintable);
return ceilf (self->bounds.size.height);
}
static double
gtk_render_node_paintable_paintable_get_intrinsic_aspect_ratio (GdkPaintable *paintable)
{
GtkRenderNodePaintable *self = GTK_RENDER_NODE_PAINTABLE (paintable);
if (self->bounds.size.height != 0)
return self->bounds.size.width / self->bounds.size.height;
return 0;
}
static void
gtk_render_node_paintable_paintable_init (GdkPaintableInterface *iface)
{
iface->snapshot = gtk_render_node_paintable_paintable_snapshot;
iface->get_flags = gtk_render_node_paintable_paintable_get_flags;
iface->get_intrinsic_width = gtk_render_node_paintable_paintable_get_intrinsic_width;
iface->get_intrinsic_height = gtk_render_node_paintable_paintable_get_intrinsic_height;
iface->get_intrinsic_aspect_ratio = gtk_render_node_paintable_paintable_get_intrinsic_aspect_ratio;
}
G_DEFINE_TYPE_EXTENDED (GtkRenderNodePaintable, gtk_render_node_paintable, G_TYPE_OBJECT, 0,
G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
gtk_render_node_paintable_paintable_init))
static void
gtk_render_node_paintable_dispose (GObject *object)
{
GtkRenderNodePaintable *self = GTK_RENDER_NODE_PAINTABLE (object);
g_clear_pointer (&self->node, gsk_render_node_unref);
G_OBJECT_CLASS (gtk_render_node_paintable_parent_class)->dispose (object);
}
static void
gtk_render_node_paintable_class_init (GtkRenderNodePaintableClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->dispose = gtk_render_node_paintable_dispose;
}
static void
gtk_render_node_paintable_init (GtkRenderNodePaintable *self)
{
}
GdkPaintable *
gtk_render_node_paintable_new (GskRenderNode *node,
const graphene_rect_t *bounds)
{
GtkRenderNodePaintable *self;
g_return_val_if_fail (node == NULL || GSK_IS_RENDER_NODE (node), NULL);
g_return_val_if_fail (bounds != NULL, NULL);
self = g_object_new (GTK_TYPE_RENDER_NODE_PAINTABLE, NULL);
self->node = node ? gsk_render_node_ref (node) : NULL;
self->bounds = *bounds;
return GDK_PAINTABLE (self);
}
GskRenderNode *
gtk_render_node_paintable_get_render_node (GtkRenderNodePaintable *self)
{
g_return_val_if_fail (GTK_IS_RENDER_NODE_PAINTABLE (self), NULL);
return self->node;
}
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