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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
/* GDK - The GIMP Drawing Kit
* Copyright (C) 2009 Carlos Garnacho <carlosg@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/>.
*/
#include "config.h"
#include <gdk/gdkwindow.h>
#include <windowsx.h>
#include <objbase.h>
#include "gdkdisplayprivate.h"
#include "gdkdevice-virtual.h"
#include "gdkdevice-win32.h"
#include "gdkwin32.h"
G_DEFINE_TYPE (GdkDeviceVirtual, gdk_device_virtual, GDK_TYPE_DEVICE)
void
_gdk_device_virtual_set_active (GdkDevice *device,
GdkDevice *new_active)
{
GdkDeviceVirtual *virtual = GDK_DEVICE_VIRTUAL (device);
int n_axes, i;
GdkAtom label_atom;
GdkAxisUse use;
gdouble min_value, max_value, resolution;
if (virtual->active_device == new_active)
return;
virtual->active_device = new_active;
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
{
_gdk_device_reset_axes (device);
n_axes = gdk_device_get_n_axes (new_active);
for (i = 0; i < n_axes; i++)
{
_gdk_device_get_axis_info (new_active, i,
&label_atom, &use,
&min_value, &max_value, &resolution);
_gdk_device_add_axis (device,
label_atom, use,
min_value, max_value, resolution);
}
}
g_signal_emit_by_name (G_OBJECT (device), "changed");
}
static gboolean
gdk_device_virtual_get_history (GdkDevice *device,
GdkWindow *window,
guint32 start,
guint32 stop,
GdkTimeCoord ***events,
gint *n_events)
{
/* History is only per slave device */
return FALSE;
}
static void
gdk_device_virtual_get_state (GdkDevice *device,
GdkWindow *window,
gdouble *axes,
GdkModifierType *mask)
{
GdkDeviceVirtual *virtual = GDK_DEVICE_VIRTUAL (device);
GdkDevice *active = virtual->active_device;
GDK_DEVICE_GET_CLASS (active)->get_state (active,
window, axes, mask);
}
static void
gdk_device_virtual_set_window_cursor (GdkDevice *device,
GdkWindow *window,
GdkCursor *cursor)
{
GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
GdkCursor *previous_cursor = impl->cursor;
if (cursor != NULL && GDK_WIN32_CURSOR (cursor)->hcursor != NULL)
{
SetCursor (GDK_WIN32_CURSOR (cursor)->hcursor);
}
else if (previous_cursor != NULL &&
GetCursor () == GDK_WIN32_CURSOR (previous_cursor)->hcursor)
{
/* The caller will unref previous_cursor shortly,
* but it holds the handle to currently-used cursor,
* and we can't call SetCursor(NULL).
*/
g_warning (G_STRLOC ": Refusing to replace cursor %p (handle %p) with NULL. "
"Expect ugly results.",
previous_cursor, GDK_WIN32_CURSOR (previous_cursor)->hcursor);
}
else
{
/* Up the stack all effors were made already to ensure that
* the "cursor" argument is non-NULL.
* If it is, calling SetCursor(NULL) is absolutely not
* the right decision, so we just warn and bail out.
*/
g_warning (G_STRLOC ": Refusing to set NULL cursor");
}
}
static void
gdk_device_virtual_warp (GdkDevice *device,
GdkScreen *screen,
gdouble x,
gdouble y)
{
SetCursorPos (x - _gdk_offset_x, y - _gdk_offset_y);
}
static void
gdk_device_virtual_query_state (GdkDevice *device,
GdkWindow *window,
GdkWindow **root_window,
GdkWindow **child_window,
gdouble *root_x,
gdouble *root_y,
gdouble *win_x,
gdouble *win_y,
GdkModifierType *mask)
{
GdkDeviceVirtual *virtual = GDK_DEVICE_VIRTUAL (device);
_gdk_device_query_state (virtual->active_device,
window, root_window, child_window,
root_x, root_y,
win_x, win_y,
mask);
}
static GdkGrabStatus
gdk_device_virtual_grab (GdkDevice *device,
GdkWindow *window,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time_)
{
GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
{
if (_gdk_win32_grab_cursor != NULL)
{
if (GetCursor () == GDK_WIN32_CURSOR (_gdk_win32_grab_cursor)->hcursor)
SetCursor (NULL);
}
g_set_object (&_gdk_win32_grab_cursor, cursor);
if (_gdk_win32_grab_cursor != NULL)
SetCursor (GDK_WIN32_CURSOR (_gdk_win32_grab_cursor)->hcursor);
else if (impl->cursor != NULL)
SetCursor (GDK_WIN32_CURSOR (impl->cursor)->hcursor);
else
SetCursor (LoadCursor (NULL, IDC_ARROW));
SetCapture (GDK_WINDOW_HWND (window));
}
return GDK_GRAB_SUCCESS;
}
static void
gdk_device_virtual_ungrab (GdkDevice *device,
guint32 time_)
{
GdkDeviceGrabInfo *info;
GdkDisplay *display;
display = gdk_device_get_display (device);
info = _gdk_display_get_last_device_grab (display, device);
if (info)
info->serial_end = 0;
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
{
if (_gdk_win32_grab_cursor != NULL)
{
if (GetCursor () == GDK_WIN32_CURSOR (_gdk_win32_grab_cursor)->hcursor)
SetCursor (NULL);
}
g_clear_object (&_gdk_win32_grab_cursor);
ReleaseCapture ();
}
_gdk_display_device_grab_update (display, device, device, 0);
}
static void
gdk_device_virtual_select_window_events (GdkDevice *device,
GdkWindow *window,
GdkEventMask event_mask)
{
}
static void
gdk_device_virtual_class_init (GdkDeviceVirtualClass *klass)
{
GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
device_class->get_history = gdk_device_virtual_get_history;
device_class->get_state = gdk_device_virtual_get_state;
device_class->set_window_cursor = gdk_device_virtual_set_window_cursor;
device_class->warp = gdk_device_virtual_warp;
device_class->query_state = gdk_device_virtual_query_state;
device_class->grab = gdk_device_virtual_grab;
device_class->ungrab = gdk_device_virtual_ungrab;
device_class->window_at_position = _gdk_device_win32_window_at_position;
device_class->select_window_events = gdk_device_virtual_select_window_events;
}
static void
gdk_device_virtual_init (GdkDeviceVirtual *device_virtual)
{
}
|
