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
|
/*
* 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 "gtkrootprivate.h"
/**
* SECTION:root
* @Title: GtkRoot
* @Short_description: Root widgets
* @See_also: #GtkWindow
*
* #GtkRoot is the interface implemented by all widgets that can act as a toplevel
* widget to a hierarchy of widgets. The root widget takes care of providing the
* connection to the windowing system and manages layout, drawing and event delivery
* for its widget hierarchy.
*
* The obvious example of a #GtkRoot is #GtkWindow.
*/
G_DEFINE_INTERFACE (GtkRoot, gtk_root, GTK_TYPE_WIDGET)
static GdkDisplay *
gtk_root_default_get_display (GtkRoot *self)
{
return gdk_display_get_default ();
}
static GskRenderer *
gtk_root_default_get_renderer (GtkRoot *self)
{
return NULL;
}
static void
gtk_root_default_get_surface_transform (GtkRoot *self,
int *x,
int *y)
{
*x = 0;
*y = 0;
}
static GtkWidget *
gtk_root_default_get_focus (GtkRoot *self)
{
return NULL;
}
static GtkWidget *
gtk_root_default_get_default (GtkRoot *self)
{
return NULL;
}
static void
gtk_root_default_init (GtkRootInterface *iface)
{
iface->get_display = gtk_root_default_get_display;
iface->get_renderer = gtk_root_default_get_renderer;
iface->get_surface_transform = gtk_root_default_get_surface_transform;
iface->get_focus = gtk_root_default_get_focus;
iface->get_default = gtk_root_default_get_default;
}
GdkDisplay *
gtk_root_get_display (GtkRoot *self)
{
GtkRootInterface *iface;
g_return_val_if_fail (GTK_IS_ROOT (self), NULL);
iface = GTK_ROOT_GET_IFACE (self);
return iface->get_display (self);
}
GskRenderer *
gtk_root_get_renderer (GtkRoot *self)
{
GtkRootInterface *iface;
g_return_val_if_fail (GTK_IS_ROOT (self), NULL);
iface = GTK_ROOT_GET_IFACE (self);
return iface->get_renderer (self);
}
void
gtk_root_get_surface_transform (GtkRoot *self,
int *x,
int *y)
{
GtkRootInterface *iface;
g_return_if_fail (GTK_IS_ROOT (self));
g_return_if_fail (x != 0);
g_return_if_fail (y != 0);
iface = GTK_ROOT_GET_IFACE (self);
return iface->get_surface_transform (self, x, y);
}
GtkWidget *
gtk_root_get_focus (GtkRoot *self)
{
g_return_val_if_fail (GTK_IS_ROOT (self), NULL);
return GTK_ROOT_GET_IFACE (self)->get_focus (self);
}
GtkWidget *
gtk_root_get_default (GtkRoot *self)
{
g_return_val_if_fail (GTK_IS_ROOT (self), NULL);
return GTK_ROOT_GET_IFACE (self)->get_default (self);
}
|
