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
|
#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_print("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_print("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_print("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_print("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);
}
}
|
