forked from AuroraMiddleware/gtk
1137483d15
It is now possible to call push() subfunctions for simple container nodes with just a single child. So you can for example gtk_snapshot_push_clip() a clip region that all the nodes that get appended later will then obey. gtk_snapshot_pop() will then not return a container node, but a clip node containing the container node (and similar for the transform example). This is implemented internally by providing a "collect function" when pushing that is called when popping to collects all the accumulated nodes and combine them into the single node that gets returned. To simplify things even more, gtk_snapshot_pop_and_append() has been added, which pops the currently pushed node and appends it to the parent. The icon rendering code has been converted to this approach.
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/* GTK - The GIMP Toolkit
|
|
* Copyright (C) 2016 Benjamin Otte <otte@gnome.org>
|
|
*
|
|
* 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 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/>.
|
|
*/
|
|
|
|
#ifndef __GTK_SNAPSHOT_PRIVATE_H__
|
|
#define __GTK_SNAPSHOT_PRIVATE_H__
|
|
|
|
#include "gtksnapshot.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef struct _GtkSnapshotState GtkSnapshotState;
|
|
|
|
typedef GskRenderNode * (* GtkSnapshotCollectFunc) (GskRenderNode **nodes,
|
|
guint n_nodes,
|
|
const char *name,
|
|
gpointer user_data);
|
|
|
|
struct _GtkSnapshotState {
|
|
GtkSnapshotState *parent;
|
|
|
|
char *name;
|
|
GPtrArray *nodes;
|
|
|
|
cairo_region_t *clip_region;
|
|
double translate_x;
|
|
double translate_y;
|
|
|
|
GtkSnapshotCollectFunc collect_func;
|
|
gpointer collect_data;
|
|
};
|
|
|
|
struct _GtkSnapshot {
|
|
GtkSnapshotState *state;
|
|
|
|
GskRenderer *renderer;
|
|
};
|
|
|
|
void gtk_snapshot_init (GtkSnapshot *state,
|
|
GskRenderer *renderer,
|
|
const cairo_region_t *clip,
|
|
const char *name,
|
|
...) G_GNUC_PRINTF (4, 5);
|
|
GskRenderNode * gtk_snapshot_finish (GtkSnapshot *state);
|
|
|
|
GskRenderer * gtk_snapshot_get_renderer (const GtkSnapshot *snapshot);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GTK_SNAPSHOT_PRIVATE_H__ */
|