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/* 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"
#include "gsk/gskrendernodeprivate.h"
G_BEGIN_DECLS
typedef struct _GtkSnapshotState GtkSnapshotState;
typedef GskRenderNode * (* GtkSnapshotCollectFunc) (GtkSnapshot *snapshot,
GtkSnapshotState *state,
GskRenderNode **nodes,
guint n_nodes);
struct _GtkSnapshotState {
guint start_node_index;
guint n_nodes;
GtkTransform * transform;
GtkSnapshotCollectFunc collect_func;
union {
struct {
graphene_matrix_t transform;
GskMatrixCategory category;
} transform;
struct {
double opacity;
} opacity;
struct {
double radius;
} blur;
struct {
graphene_matrix_t matrix;
graphene_vec4_t offset;
} color_matrix;
struct {
graphene_rect_t bounds;
graphene_rect_t child_bounds;
} repeat;
struct {
graphene_rect_t bounds;
} clip;
struct {
GskRoundedRect bounds;
} rounded_clip;
struct {
gsize n_shadows;
GskShadow *shadows;
GskShadow a_shadow; /* Used if n_shadows == 1 */
} shadow;
struct {
GskBlendMode blend_mode;
GskRenderNode *bottom_node;
} blend;
struct {
double progress;
GskRenderNode *start_node;
} cross_fade;
struct {
char *message;
} debug;
} data;
};
/* This is a nasty little hack. We typedef GtkSnapshot to the fake object GdkSnapshot
* so that we don't need to typecast between them.
* After all, the GdkSnapshot only exist so poor language bindings don't trip. Hardcore
* C code can just blatantly ignore such layering violations with a typedef.
*/
struct _GdkSnapshot {
GObject parent_instance; /* it's really GdkSnapshot, but don't tell anyone! */
GArray *state_stack;
GPtrArray *nodes;
guint from_parent : 1;
};
struct _GtkSnapshotClass {
GObjectClass parent_class; /* it's really GdkSnapshotClass, but don't tell anyone! */
};
void gtk_snapshot_append_node_internal (GtkSnapshot *snapshot,
GskRenderNode *node);
GtkSnapshot * gtk_snapshot_new_with_parent (GtkSnapshot *parent_snapshot);
void gtk_snapshot_transform_matrix_with_category
(GtkSnapshot *snapshot,
const graphene_matrix_t*matrix,
GskMatrixCategory category);
void gtk_snapshot_append_text (GtkSnapshot *snapshot,
PangoFont *font,
PangoGlyphString *glyphs,
const GdkRGBA *color,
float x,
float y);
G_END_DECLS
#endif /* __GTK_SNAPSHOT_PRIVATE_H__ */
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