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
|
/*
* Copyright © 2020 Red Hat, Inc.
*
* 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: Matthias Clasen <mclasen@redhat.com>
*/
#include "config.h"
#include "gdk-private.h"
#include "gdkdragsurfaceprivate.h"
#include "gdkintl.h"
/**
* GdkDragSurface:
*
* A #GdkDragSurface is an interface for surfaces used during DND.
*/
/**
* GdkDragSurfaceInterface:
*
* The `GdkDragSurfaceInterface` implementation is private to GDK.
*/
G_DEFINE_INTERFACE (GdkDragSurface, gdk_drag_surface, GDK_TYPE_SURFACE)
static gboolean
gdk_drag_surface_default_present (GdkDragSurface *drag_surface,
int width,
int height)
{
return FALSE;
}
static void
gdk_drag_surface_default_init (GdkDragSurfaceInterface *iface)
{
iface->present = gdk_drag_surface_default_present;
}
/**
* gdk_drag_surface_present:
* @drag_surface: the `GdkDragSurface` to show
* @width: the unconstrained drag_surface width to layout
* @height: the unconstrained drag_surface height to layout
*
* Present @drag_surface.
*
* Returns: %FALSE if it failed to be presented, otherwise %TRUE.
*/
gboolean
gdk_drag_surface_present (GdkDragSurface *drag_surface,
int width,
int height)
{
g_return_val_if_fail (GDK_IS_DRAG_SURFACE (drag_surface), FALSE);
g_return_val_if_fail (width > 0, FALSE);
g_return_val_if_fail (height > 0, FALSE);
return GDK_DRAG_SURFACE_GET_IFACE (drag_surface)->present (drag_surface, width, height);
}
|
