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
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
/* 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 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team.
*/
/*
* GTK+ DirectFB backend
* Copyright (C) 2001-2002 convergence integrated media GmbH
* Copyright (C) 2002-2004 convergence GmbH
* Written by Denis Oliver Kropp <dok@convergence.de> and
* Sven Neumann <sven@convergence.de>
*/
#include "config.h"
#include "gdk.h" /* For gdk_rectangle_intersect */
#include "gdkdirectfb.h"
#include "gdkprivate-directfb.h"
#include "gdkinternals.h"
#include "gdkalias.h"
void
_gdk_windowing_window_get_offsets (GdkWindow *window,
gint *x_offset,
gint *y_offset)
{
if (x_offset)
*x_offset = 0;
if (y_offset)
*y_offset = 0;
}
gboolean
_gdk_windowing_window_queue_antiexpose (GdkWindow *window,
GdkRegion *area)
{
return FALSE;
}
/**
* gdk_window_scroll:
* @window: a #GdkWindow
* @dx: Amount to scroll in the X direction
* @dy: Amount to scroll in the Y direction
*
* Scroll the contents of its window, both pixels and children, by
* the given amount. Portions of the window that the scroll operation
* brings in from offscreen areas are invalidated.
**/
void
gdk_window_scroll (GdkWindow *window,
gint dx,
gint dy)
{
GdkWindowObject *private;
GdkDrawableImplDirectFB *impl;
GdkRegion *invalidate_region = NULL;
GList *list;
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
private = GDK_WINDOW_OBJECT (window);
impl = GDK_DRAWABLE_IMPL_DIRECTFB (private->impl);
if (dx == 0 && dy == 0)
return;
/* Move the current invalid region */
if (private->update_area)
gdk_region_offset (private->update_area, dx, dy);
if (GDK_WINDOW_IS_MAPPED (window))
{
GdkRectangle clip_rect = { 0, 0, impl->width, impl->height };
GdkRectangle rect = { dx, dy, impl->width, impl->height };
invalidate_region = gdk_region_rectangle (&clip_rect);
if (gdk_rectangle_intersect (&rect, &clip_rect, &rect) &&
(!private->update_area ||
!gdk_region_rect_in (private->update_area, &rect)))
{
GdkRegion *region;
region = gdk_region_rectangle (&rect);
gdk_region_subtract (invalidate_region, region);
gdk_region_destroy (region);
if (impl->surface)
{
DFBRegion update = { rect.x, rect.y,
rect.x + rect.width - 1,
rect.y + rect.height - 1 };
impl->surface->SetClip (impl->surface, &update);
impl->surface->Blit (impl->surface, impl->surface, NULL, dx, dy);
impl->surface->SetClip (impl->surface, NULL);
impl->surface->Flip(impl->surface,&update,0);
}
}
}
for (list = private->children; list; list = list->next)
{
GdkWindowObject *obj = GDK_WINDOW_OBJECT (list->data);
GdkDrawableImplDirectFB *obj_impl = GDK_DRAWABLE_IMPL_DIRECTFB (obj->impl);
_gdk_directfb_move_resize_child (list->data,
obj->x + dx,
obj->y + dy,
obj_impl->width,
obj_impl->height);
}
_gdk_directfb_calc_abs (window);
if (invalidate_region)
{
gdk_window_invalidate_region (window, invalidate_region, TRUE);
gdk_region_destroy (invalidate_region);
}
}
/**
* gdk_window_move_region:
* @window: a #GdkWindow
* @region: The #GdkRegion to move
* @dx: Amount to move in the X direction
* @dy: Amount to move in the Y direction
*
* Move the part of @window indicated by @region by @dy pixels in the Y
* direction and @dx pixels in the X direction. The portions of @region
* that not covered by the new position of @region are invalidated.
*
* Child windows are not moved.
*
* Since: 2.8
**/
void
gdk_window_move_region (GdkWindow *window,
const GdkRegion *region,
gint dx,
gint dy)
{
GdkWindowObject *private;
GdkDrawableImplDirectFB *impl;
GdkRegion *window_clip;
GdkRegion *src_region;
GdkRegion *brought_in;
GdkRegion *dest_region;
GdkRegion *moving_invalid_region;
GdkRectangle dest_extents;
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (region != NULL);
if (GDK_WINDOW_DESTROYED (window))
return;
private = GDK_WINDOW_OBJECT (window);
impl = GDK_DRAWABLE_IMPL_DIRECTFB (private->impl);
if (dx == 0 && dy == 0)
return;
GdkRectangle clip_rect = { 0, 0, impl->width, impl->height };
window_clip = gdk_region_rectangle (&clip_rect);
/* compute source regions */
src_region = gdk_region_copy (region);
brought_in = gdk_region_copy (region);
gdk_region_intersect (src_region, window_clip);
gdk_region_subtract (brought_in, src_region);
gdk_region_offset (brought_in, dx, dy);
/* compute destination regions */
dest_region = gdk_region_copy (src_region);
gdk_region_offset (dest_region, dx, dy);
gdk_region_intersect (dest_region, window_clip);
gdk_region_get_clipbox (dest_region, &dest_extents);
gdk_region_destroy (window_clip);
/* calculating moving part of current invalid area */
moving_invalid_region = NULL;
if (private->update_area)
{
moving_invalid_region = gdk_region_copy (private->update_area);
gdk_region_intersect (moving_invalid_region, src_region);
gdk_region_offset (moving_invalid_region, dx, dy);
}
/* invalidate all of the src region */
gdk_window_invalidate_region (window, src_region, FALSE);
/* un-invalidate destination region */
if (private->update_area)
gdk_region_subtract (private->update_area, dest_region);
/* invalidate moving parts of existing update area */
if (moving_invalid_region)
{
gdk_window_invalidate_region (window, moving_invalid_region, FALSE);
gdk_region_destroy (moving_invalid_region);
}
/* invalidate area brought in from off-screen */
gdk_window_invalidate_region (window, brought_in, FALSE);
gdk_region_destroy (brought_in);
/* Actually do the moving */
if (impl->surface)
{
DFBRectangle source = { dest_extents.x - dx,
dest_extents.y - dy,
dest_extents.width,
dest_extents.height};
DFBRegion destination = { dest_extents.x,
dest_extents.y,
dest_extents.x+dest_extents.width-1,
dest_extents.y+dest_extents.height-1};
impl->surface->SetClip (impl->surface, &destination);
impl->surface->Blit (impl->surface, impl->surface,&source,dx,dy);
impl->surface->SetClip (impl->surface, NULL);
impl->surface->Flip(impl->surface,&destination,0);
}
gdk_region_destroy (src_region);
gdk_region_destroy (dest_region);
}
#define __GDK_GEOMETRY_X11_C__
#include "gdkaliasdef.c"
|
