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Comparing rxvt-unicode/src/rxvtcolor.C (file contents):
Revision 1.2 by pcg, Mon Jan 19 17:26:43 2004 UTC vs.
Revision 1.14 by pcg, Thu Apr 8 20:31:45 2004 UTC

1/*--------------------------------*-C-*---------------------------------*
2 * File: rxvtcolor.C
3 *----------------------------------------------------------------------*
4 *
5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *----------------------------------------------------------------------*/
22
1#include "../config.h" 23#include "../config.h"
2#include <rxvt.h> 24#include <rxvt.h>
25#include <rxvtcolor.h>
3 26
4// TODO: free colors again 27#include <unistd.h>
28#include <fcntl.h>
5 29
30class byteorder byteorder;
31
32byteorder::byteorder ()
33{
34 union {
35 uint32_t u;
36 uint8_t b[4];
37 } w;
38
39 w.b[0] = 0x11;
40 w.b[1] = 0x22;
41 w.b[2] = 0x33;
42 w.b[3] = 0x44;
43
44 e = w.u;
45}
46
47refcounted::refcounted (const char *id)
48{
49 this->id = STRDUP (id);
50}
51
52refcounted::~refcounted ()
53{
54 free (id);
55}
56
57template<class T>
58T *refcache<T>::get (const char *id)
59{
60 for (T **i = begin (); i < end (); ++i)
61 {
62 if (!strcmp (id, (*i)->id))
63 {
64 (*i)->referenced++;
65 return *i;
66 }
67 }
68
69 T *obj = new T (id);
70
71 obj->referenced = 1;
72
73 if (obj && obj->init ())
74 {
75 push_back (obj);
76 return obj;
77 }
78 else
79 {
80 delete obj;
81 return 0;
82 }
83}
84
85template<class T>
86void refcache<T>::put (T *obj)
87{
88 if (!obj)
89 return;
90
91 if (!--obj->referenced)
92 {
93 erase (find (begin (), end (), obj));
94 delete obj;
95 }
96}
97
98template<class T>
99refcache<T>::~refcache ()
100{
101 while (size ())
102 put (*begin ());
103}
104
105/////////////////////////////////////////////////////////////////////////////
106
107static void
108im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3)
109{
110 rxvt_xim *xim = (rxvt_xim *)client_data;
111 rxvt_display *display = xim->display;
112
113 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim));
114
115 display->im_change_cb ();
116}
117
118bool rxvt_xim::init ()
119{
120 display = GET_R->display; //HACK: TODO
121
122 xim = XOpenIM (display->display, NULL, NULL, NULL);
123
124 if (!xim)
125 return false;
126
127 XIMCallback ximcallback;
128 ximcallback.client_data = (XPointer)this;
129 ximcallback.callback = im_destroy_cb;
130
131 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL);
132
133 return true;
134}
135
136rxvt_xim::~rxvt_xim ()
137{
138 if (xim)
139 XCloseIM (xim);
140}
141
142/////////////////////////////////////////////////////////////////////////////
143
144rxvt_display::rxvt_display (const char *id)
145: refcounted (id)
146, x_ev (this, &rxvt_display::x_cb)
147, selection_owner (0)
148{
149}
150
151bool rxvt_display::init ()
152{
153 display = XOpenDisplay (id);
154
155 if (!display)
156 return false;
157
158 screen = DefaultScreen (display);
159 root = DefaultRootWindow (display);
160 visual = DefaultVisual (display, screen);
161 cmap = DefaultColormap (display, screen);
162 depth = DefaultDepth (display, screen);
163
164#ifdef PREFER_24BIT
165 /*
166 * If depth is not 24, look for a 24bit visual.
167 */
168 if (depth != 24)
169 {
170 XVisualInfo vinfo;
171
172 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
173 {
174 depth = 24;
175 visual = vinfo.visual;
176 cmap = XCreateColormap (display,
177 RootWindow (display, screen),
178 visual, AllocNone);
179 }
180 }
181#endif
182
183 int fd = XConnectionNumber (display);
184 x_ev.start (fd, EVENT_READ);
185 fcntl (fd, F_SETFD, FD_CLOEXEC);
186
187 XSelectInput (display, root, PropertyChangeMask);
188 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
189
190 flush ();
191
192 return true;
193}
194
195rxvt_display::~rxvt_display ()
196{
197 x_ev.stop ();
198
199 if (display)
200 XCloseDisplay (display);
201}
202
203void rxvt_display::im_change_cb ()
204{
205 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
206 (*i)->call ();
207}
208
209void rxvt_display::x_cb (io_watcher &w, short revents)
210{
211 do
212 {
213 XEvent xev;
214 XNextEvent (display, &xev);
215
216 //printf ("T %d w %lx\n", xev.type, xev.xany.window);//D
217
218 if (xev.type == PropertyNotify
219 && xev.xany.window == root
220 && xev.xproperty.atom == xa_xim_servers)
221 im_change_cb ();
222
223 for (int i = xw.size (); i--; )
224 {
225 if (!xw[i])
226 xw.erase_unordered (i);
227 else if (xw[i]->window == xev.xany.window)
228 xw[i]->call (xev);
229 }
230 }
231 while (XPending (display));
232
233 flush ();
234}
235
236void rxvt_display::flush ()
237{
238 for (;;)
239 {
240 XFlush (display);
241
242 if (!XPending (display))
243 break;
244
245 x_cb (x_ev, 0);
246 }
247}
248
249void rxvt_display::reg (xevent_watcher *w)
250{
251 xw.push_back (w);
252 w->active = xw.size ();
253}
254
255void rxvt_display::unreg (xevent_watcher *w)
256{
257 if (w->active)
258 xw[w->active - 1] = 0;
259}
260
261void rxvt_display::reg (im_watcher *w)
262{
263 imw.push_back (w);
264}
265
266void rxvt_display::unreg (im_watcher *w)
267{
268 imw.erase (find (imw.begin (), imw.end (), w));
269}
270
271void rxvt_display::set_selection_owner (rxvt_term *owner)
272{
273 if (selection_owner && selection_owner != owner)
274 selection_owner->selection_clear ();
275
276 selection_owner = owner;
277}
278
279rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers)
280{
281 char *id;
282 int l, m;
283
284 l = strlen (locale);
285 m = strlen (modifiers);
286
287 if (!(id = (char *)malloc (l + m + 2)))
288 return 0;
289
290 memcpy (id, locale, l); id[l] = '\n';
291 memcpy (id + l + 1, modifiers, m); id[l + m + 1] = 0;
292
293 rxvt_xim *xim = xims.get (id);
294
295 free (id);
296
297 return xim;
298}
299
300void rxvt_display::put_xim (rxvt_xim *xim)
301{
302 xims.put (xim);
303}
304
305Atom rxvt_display::atom (const char *name)
306{
307 return XInternAtom (display, name, False);
308}
309
310/////////////////////////////////////////////////////////////////////////////
311
312template refcache<rxvt_display>;
313refcache<rxvt_display> displays;
314
315/////////////////////////////////////////////////////////////////////////////
316
6bool 317bool
7rxvt_color::set (pR_ Pixel p) 318rxvt_color::set (rxvt_display *display, Pixel p)
8{ 319{
9#if XFT 320#if XFT
10 XColor xc; 321 XColor xc;
11 322
12 xc.pixel = p; 323 xc.pixel = p;
13 if (!XQueryColor (R->Xdisplay, R->Xcmap, &xc)) 324 if (!XQueryColor (display->display, display->cmap, &xc))
14 return false; 325 return false;
15 326
16 XRenderColor d; 327 XRenderColor d;
17 328
18 d.red = xc.red; 329 d.red = xc.red;
19 d.green = xc.green; 330 d.green = xc.green;
20 d.blue = xc.blue; 331 d.blue = xc.blue;
21 d.alpha = 0xffff; 332 d.alpha = 0xffff;
22 333
23 return 334 return
24 XftColorAllocValue (R->Xdisplay, 335 XftColorAllocValue (display->display,
25 R->Xvisual, 336 display->visual,
26 R->Xcmap, 337 display->cmap,
27 &d,
28 &c); 338 &d, &c);
29#else 339#else
30 this->p = p; 340 this->p = p;
31#endif 341#endif
32 342
33 return true; 343 return true;
34} 344}
35 345
36bool 346bool
37rxvt_color::set (pR_ const char *name) 347rxvt_color::set (rxvt_display *display, const char *name)
38{ 348{
39 XColor xc; 349 XColor xc;
40 350
41 if (XParseColor (R->Xdisplay, R->Xcmap, name, &xc)) 351 if (XParseColor (display->display, display->cmap, name, &xc))
42 return set (aR_ xc.red, xc.green, xc.blue); 352 return set (display, xc.red, xc.green, xc.blue);
43 353
44 return false; 354 return false;
45} 355}
46 356
47bool 357bool
48rxvt_color::set (pR_ unsigned short cr, unsigned short cg, unsigned short cb) 358rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb)
49{ 359{
50 XColor xc; 360 XColor xc;
51 361
52 xc.red = cr; 362 xc.red = cr;
53 xc.green = cg; 363 xc.green = cg;
54 xc.blue = cb; 364 xc.blue = cb;
55 xc.flags = DoRed | DoGreen | DoBlue; 365 xc.flags = DoRed | DoGreen | DoBlue;
56 366
57 if (XAllocColor (R->Xdisplay, R->Xcmap, &xc)) 367 if (XAllocColor (display->display, display->cmap, &xc))
58 return set (aR_ xc.pixel); 368 return set (display, xc.pixel);
59 369
60 return false; 370 return false;
61} 371}
62 372
63void 373void
64rxvt_color::get (pR_ unsigned short &cr, unsigned short &cg, unsigned short &cb) 374rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb)
65{ 375{
66#if XFT 376#if XFT
67 cr = c.color.red; 377 cr = c.color.red;
68 cg = c.color.green; 378 cg = c.color.green;
69 cb = c.color.blue; 379 cb = c.color.blue;
70#else 380#else
71 XColor c; 381 XColor c;
72 382
73 c.pixel = p; 383 c.pixel = p;
74 XQueryColor (R->Xdisplay, R->Xcmap, &c); 384 XQueryColor (display->display, display->cmap, &c);
75 385
76 cr = c.red; 386 cr = c.red;
77 cg = c.green; 387 cg = c.green;
78 cb = c.blue; 388 cb = c.blue;
79#endif 389#endif
80} 390}
81 391
392void
393rxvt_color::free (rxvt_display *display)
394{
395#if XFT
396 XftColorFree (display->display, display->visual, display->cmap, &c);
397#else
398 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
399#endif
400}
401

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