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
|
/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <string.h>
#include "gdkx.h"
#include "gdk.h"
/* Nothing much here now, but we have to make a start some time ;-) */
void
gdk_dnd_set_drag_cursors(GdkCursor *default_cursor, GdkCursor *goahead_cursor)
{
gdk_dnd.c->gdk_cursor_dragdefault =
((GdkCursorPrivate *)default_cursor)->xcursor;
gdk_dnd.c->gdk_cursor_dragok = ((GdkCursorPrivate *)goahead_cursor)->xcursor;
if(gdk_dnd.dnd_grabbed)
{
if(gdk_dnd.c->drag_pm_default)
/* We were displaying pixmaps for the drag */
{
gdk_window_hide(gdk_dnd.c->drag_pm_default);
gdk_window_unref(gdk_dnd.c->drag_pm_default);
if(gdk_dnd.c->drag_pm_ok)
{
gdk_window_hide(gdk_dnd.c->drag_pm_ok);
gdk_window_unref(gdk_dnd.c->drag_pm_ok);
}
gdk_dnd.c->drag_pm_default = gdk_dnd.c->drag_pm_ok = NULL;
g_list_free(gdk_dnd.c->xids);
gdk_dnd.c->xids = NULL;
}
gdk_dnd_display_drag_cursor(-1, -1,
gdk_dnd.dnd_drag_target?TRUE:FALSE,
TRUE);
}
}
void
gdk_dnd_set_drag_shape(GdkWindow *default_pixmapwin,
GdkPoint *default_hotspot,
GdkWindow *goahead_pixmapwin,
GdkPoint *goahead_hotspot)
{
g_return_if_fail(default_pixmapwin != NULL);
g_list_free(gdk_dnd.c->xids); gdk_dnd.c->xids = NULL;
if(gdk_dnd.c->drag_pm_default)
{
gdk_window_hide(gdk_dnd.c->drag_pm_default);
gdk_window_unref(gdk_dnd.c->drag_pm_default);
}
if(gdk_dnd.c->drag_pm_ok)
{
gdk_window_hide(gdk_dnd.c->drag_pm_ok);
gdk_window_unref(gdk_dnd.c->drag_pm_ok);
}
gdk_dnd.c->drag_pm_ok = NULL;
gdk_window_ref(default_pixmapwin);
gdk_dnd.c->drag_pm_default = default_pixmapwin;
gdk_dnd.c->default_hotspot = *default_hotspot;
gdk_dnd.c->xids = g_list_append(gdk_dnd.c->xids, GUINT_TO_POINTER (((GdkWindowPrivate *)default_pixmapwin)->xwindow));
if(goahead_pixmapwin)
{
gdk_window_ref(goahead_pixmapwin);
gdk_dnd.c->xids = g_list_append(gdk_dnd.c->xids, GUINT_TO_POINTER (((GdkWindowPrivate *)goahead_pixmapwin)->xwindow));
gdk_dnd.c->drag_pm_ok = goahead_pixmapwin;
gdk_dnd.c->ok_hotspot = *goahead_hotspot;
}
if(gdk_dnd.dnd_grabbed)
{
gdk_dnd_display_drag_cursor(-1, -1,
gdk_dnd.dnd_drag_target?TRUE:FALSE,
TRUE);
XChangeActivePointerGrab (gdk_display,
ButtonMotionMask |
ButtonPressMask |
ButtonReleaseMask |
EnterWindowMask | LeaveWindowMask,
None,
CurrentTime);
}
}
void
gdk_dnd_display_drag_cursor(gint x, gint y, gboolean drag_ok,
gboolean change_made)
{
if(!gdk_dnd.dnd_grabbed)
return;
if(gdk_dnd.c->drag_pm_default)
{
/* We're doing pixmaps here... */
GdkWindow *mypix, *opix;
GdkPoint *myhotspot;
gint itmp;
guint masktmp;
Window wtmp;
if(x == -2 && y == -2) /* Hide the cursors */
{
gdk_window_hide(gdk_dnd.c->drag_pm_ok);
gdk_window_hide(gdk_dnd.c->drag_pm_default);
GDK_NOTE(DND, g_message("Hiding both drag cursors\n"));
return;
}
if(x == -1 && y == -1) /* We're supposed to find it out for ourselves */
XQueryPointer(gdk_display, gdk_root_window,
&wtmp, &wtmp, &x, &y, &itmp, &itmp, &masktmp);
if(drag_ok)
{
GDK_NOTE(DND, g_message("Switching to drag_ok cursor\n"));
mypix = gdk_dnd.c->drag_pm_ok;
opix = gdk_dnd.c->drag_pm_default;
myhotspot = &gdk_dnd.c->ok_hotspot;
}
else
{
GDK_NOTE(DND, g_message("Switching to drag_default cursor\n"));
mypix = gdk_dnd.c->drag_pm_default;
opix = gdk_dnd.c->drag_pm_ok;
myhotspot = &gdk_dnd.c->default_hotspot;
}
gdk_window_move(mypix, x - myhotspot->x, y - myhotspot->y);
if(change_made)
{
GDK_NOTE(DND, g_message("Cursors switched, hide & show\n"));
gdk_window_hide(opix);
}
gdk_window_move(mypix, x - myhotspot->x, y - myhotspot->y);
if (change_made)
{
gdk_window_show(mypix); /* There ought to be a way to know if
a window is already mapped etc. */
}
}
else if(change_made)
{
Cursor c;
/* Move cursors around */
if(drag_ok)
c = gdk_dnd.c->gdk_cursor_dragok;
else
c = gdk_dnd.c->gdk_cursor_dragdefault;
XChangeActivePointerGrab (gdk_display,
ButtonMotionMask |
ButtonPressMask |
ButtonReleaseMask |
EnterWindowMask | LeaveWindowMask,
c,
CurrentTime);
}
}
|
