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
|
/*
* Twin - A Tiny Window System
* Copyright © 2004 Keith Packard <keithp@keithp.com>
* All rights reserved.
*
* 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 the Twin Library; see the file COPYING. If not,
* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "twin_x11.h"
#include "twinint.h"
static void
_twin_x11_put_begin (twin_coord_t left,
twin_coord_t top,
twin_coord_t right,
twin_coord_t bottom,
void *closure)
{
twin_x11_t *tx = closure;
twin_coord_t width = right - left;
twin_coord_t height = bottom - top;
tx->image_y = top;
tx->image = XCreateImage (tx->dpy, tx->visual, tx->depth, ZPixmap,
0, 0, width, height, 32, 0);
if (tx->image)
{
tx->image->data = malloc (4 * width * height);
if (!tx->image->data)
{
XDestroyImage (tx->image);
tx->image = 0;
}
}
}
static void
_twin_x11_put_span (twin_coord_t left,
twin_coord_t top,
twin_coord_t right,
twin_argb32_t *pixels,
void *closure)
{
twin_x11_t *tx = closure;
twin_coord_t width = right - left;
twin_coord_t ix;
twin_coord_t iy = top - tx->image_y;
if (!tx->image)
return;
for (ix = 0; ix < width; ix++)
{
twin_argb32_t pixel = *pixels++;
if (tx->depth == 16)
pixel = twin_argb32_to_rgb16 (pixel);
XPutPixel (tx->image, ix, iy, pixel);
}
if ((top + 1 - tx->image_y) == tx->image->height)
{
XPutImage (tx->dpy, tx->win, tx->gc, tx->image, 0, 0,
left, tx->image_y, tx->image->width, tx->image->height);
XDestroyImage (tx->image);
tx->image = 0;
}
}
static twin_bool_t
twin_x11_read_events (int file,
twin_file_op_t ops,
void *closure)
{
twin_x11_t *tx = closure;
while (XEventsQueued (tx->dpy, QueuedAfterReading))
{
XEvent ev;
twin_event_t tev;
XNextEvent (tx->dpy, &ev);
switch (ev.type) {
case Expose:
twin_x11_damage (tx, (XExposeEvent *) &ev);
break;
case DestroyNotify:
return 0;
case ButtonPress:
case ButtonRelease:
tev.u.pointer.screen_x = ev.xbutton.x;
tev.u.pointer.screen_y = ev.xbutton.y;
tev.u.pointer.button = ((ev.xbutton.state >> 8) |
(1 << (ev.xbutton.button-1)));
tev.kind = ((ev.type == ButtonPress) ?
TwinEventButtonDown : TwinEventButtonUp);
twin_screen_dispatch (tx->screen, &tev);
break;
case MotionNotify:
tev.u.pointer.screen_x = ev.xmotion.x;
tev.u.pointer.screen_y = ev.xmotion.y;
tev.kind = TwinEventMotion;
tev.u.pointer.button = ev.xbutton.state >> 8;
twin_screen_dispatch (tx->screen, &tev);
break;
}
}
return TWIN_TRUE;
}
static twin_bool_t
twin_x11_work (void *closure)
{
twin_x11_t *tx = closure;
if (twin_screen_damaged (tx->screen))
{
twin_x11_update (tx);
XFlush (tx->dpy);
}
return TWIN_TRUE;
}
twin_x11_t *
twin_x11_create (Display *dpy, int width, int height)
{
twin_x11_t *tx;
int scr = DefaultScreen (dpy);
XSetWindowAttributes wa;
XTextProperty wm_name, icon_name;
XSizeHints sizeHints;
XWMHints wmHints;
XClassHint classHints;
Atom wm_delete_window;
static char *argv[] = { "xtwin", 0 };
static int argc = 1;
tx = malloc (sizeof (twin_x11_t));
if (!tx)
return 0;
tx->dpy = dpy;
tx->visual = DefaultVisual (dpy, scr);
tx->depth = DefaultDepth (dpy, scr);
twin_set_file (twin_x11_read_events,
ConnectionNumber (dpy),
TWIN_READ,
tx);
twin_set_work (twin_x11_work, TWIN_WORK_REDISPLAY, tx);
wa.background_pixmap = None;
wa.event_mask = (KeyPressMask|
KeyReleaseMask|
ButtonPressMask|
ButtonReleaseMask|
PointerMotionMask|
ExposureMask|
StructureNotifyMask);
wm_name.value = (unsigned char *) argv[0];
wm_name.encoding = XA_STRING;
wm_name.format = 8;
wm_name.nitems = strlen (wm_name.value) + 1;
icon_name = wm_name;
tx->win = XCreateWindow (dpy, RootWindow (dpy, scr),
0, 0, width, height, 0,
tx->depth, InputOutput,
tx->visual, CWBackPixmap|CWEventMask, &wa);
sizeHints.flags = 0;
wmHints.flags = InputHint;
wmHints.input = True;
classHints.res_name = argv[0];
classHints.res_class = argv[0];
XSetWMProperties (dpy, tx->win,
&wm_name, &icon_name,
argv, argc,
&sizeHints, &wmHints, 0);
XSetWMProtocols (dpy, tx->win, &wm_delete_window, 1);
tx->gc = XCreateGC (dpy, tx->win, 0, 0);
tx->screen = twin_screen_create (width, height, _twin_x11_put_begin,
_twin_x11_put_span, tx);
XMapWindow (dpy, tx->win);
return tx;
}
void
twin_x11_destroy (twin_x11_t *tx)
{
XDestroyWindow (tx->dpy, tx->win);
tx->win = 0;
twin_screen_destroy (tx->screen);
}
void
twin_x11_damage (twin_x11_t *tx, XExposeEvent *ev)
{
twin_screen_damage (tx->screen,
ev->x, ev->y, ev->x + ev->width, ev->y + ev->height);
}
void
twin_x11_configure (twin_x11_t *tx, XConfigureEvent *ev)
{
twin_screen_resize (tx->screen, ev->width, ev->height);
}
void
twin_x11_update (twin_x11_t *tx)
{
twin_screen_update (tx->screen);
}
|
