1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
* 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)
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 self->bounds.size.width;
}
static int
gtk_render_node_paintable_paintable_get_intrinsic_height (GdkPaintable *paintable)
{
GtkRenderNodePaintable *self = GTK_RENDER_NODE_PAINTABLE (paintable);
return self->bounds.size.height;
}
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;
}
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 (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 = gsk_render_node_ref (node);
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;
}
|
