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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 1.22 by root, Wed Aug 4 03:29:28 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
30#ifndef NO_SLOW_LINK_SUPPORT
31# include <sys/socket.h>
32# include <sys/un.h>
33#endif
34
35class byteorder byteorder;
36
37byteorder::byteorder ()
38{
39 union {
40 uint32_t u;
41 uint8_t b[4];
42 } w;
43
44 w.b[0] = 0x11;
45 w.b[1] = 0x22;
46 w.b[2] = 0x33;
47 w.b[3] = 0x44;
48
49 e = w.u;
50}
51
52refcounted::refcounted (const char *id)
53{
54 this->id = STRDUP (id);
55}
56
57refcounted::~refcounted ()
58{
59 free (id);
60}
61
62template<class T>
63T *refcache<T>::get (const char *id)
64{
65 for (T **i = this->begin (); i < this->end (); ++i)
66 {
67 if (!strcmp (id, (*i)->id))
68 {
69 (*i)->referenced++;
70 return *i;
71 }
72 }
73
74 T *obj = new T (id);
75
76 obj->referenced = 1;
77
78 if (obj && obj->init ())
79 {
80 this->push_back (obj);
81 return obj;
82 }
83 else
84 {
85 delete obj;
86 return 0;
87 }
88}
89
90template<class T>
91void refcache<T>::put (T *obj)
92{
93 if (!obj)
94 return;
95
96 if (!--obj->referenced)
97 {
98 this->erase (find (this->begin (), this->end (), obj));
99 delete obj;
100 }
101}
102
103template<class T>
104refcache<T>::~refcache ()
105{
106 while (this->size ())
107 put (*this->begin ());
108}
109
110/////////////////////////////////////////////////////////////////////////////
111
112#ifdef USE_XIM
113static void
114#if XIMCB_PROTO_BROKEN
115im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3)
116#else
117im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3)
118#endif
119{
120 rxvt_xim *xim = (rxvt_xim *)client_data;
121 rxvt_display *display = xim->display;
122
123 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim));
124
125 display->im_change_cb ();
126}
127
128bool rxvt_xim::init ()
129{
130 display = GET_R->display; //HACK: TODO
131
132 xim = XOpenIM (display->display, NULL, NULL, NULL);
133
134 if (!xim)
135 return false;
136
137 XIMCallback ximcallback;
138 ximcallback.client_data = (XPointer)this;
139 ximcallback.callback = im_destroy_cb;
140
141 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL);
142
143 return true;
144}
145
146rxvt_xim::~rxvt_xim ()
147{
148 if (xim)
149 XCloseIM (xim);
150}
151#endif
152
153/////////////////////////////////////////////////////////////////////////////
154
155rxvt_display::rxvt_display (const char *id)
156: refcounted (id)
157, x_ev (this, &rxvt_display::x_cb)
158, selection_owner (0)
159{
160}
161
162bool rxvt_display::init ()
163{
164 display = XOpenDisplay (id);
165
166 if (!display)
167 return false;
168
169 screen = DefaultScreen (display);
170 root = DefaultRootWindow (display);
171 visual = DefaultVisual (display, screen);
172 cmap = DefaultColormap (display, screen);
173 depth = DefaultDepth (display, screen);
174
175 int fd = XConnectionNumber (display);
176
177#ifndef NO_SLOW_LINK_SUPPORT
178 // try to detetc wether we have a local connection.
179 // assume unix domains socket == local, everything else not
180 // TODO: might want to check for inet/127.0.0.1
181 is_local = 0;
182 sockaddr_un sa;
183 socklen_t sl = sizeof (sa);
184
185 if (!getsockname (fd, (sockaddr *)&sa, &sl))
186 is_local = sa.sun_family == AF_LOCAL;
187#endif
188
189#ifdef PREFER_24BIT
190 /*
191 * If depth is not 24, look for a 24bit visual.
192 */
193 if (depth != 24)
194 {
195 XVisualInfo vinfo;
196
197 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
198 {
199 depth = 24;
200 visual = vinfo.visual;
201 cmap = XCreateColormap (display,
202 RootWindow (display, screen),
203 visual, AllocNone);
204 }
205 }
206#endif
207
208 x_ev.start (fd, EVENT_READ);
209 fcntl (fd, F_SETFD, FD_CLOEXEC);
210
211 XSelectInput (display, root, PropertyChangeMask);
212#ifdef USE_XIM
213 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
214#endif
215
216 flush ();
217
218 return true;
219}
220
221rxvt_display::~rxvt_display ()
222{
223 x_ev.stop ();
224
225 if (display)
226 XCloseDisplay (display);
227}
228
229#ifdef USE_XIM
230void rxvt_display::im_change_cb ()
231{
232 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
233 (*i)->call ();
234}
235#endif
236
237void rxvt_display::x_cb (io_watcher &w, short revents)
238{
239 do
240 {
241 XEvent xev;
242 XNextEvent (display, &xev);
243
244 //printf ("T %d w %lx\n", xev.type, xev.xany.window);//D
245
246#ifdef USE_XIM
247 if (xev.type == PropertyNotify
248 && xev.xany.window == root
249 && xev.xproperty.atom == xa_xim_servers)
250 im_change_cb ();
251#endif
252
253 for (int i = xw.size (); i--; )
254 {
255 if (!xw[i])
256 xw.erase_unordered (i);
257 else if (xw[i]->window == xev.xany.window)
258 xw[i]->call (xev);
259 }
260 }
261 while (XPending (display));
262
263 flush ();
264}
265
266void rxvt_display::flush ()
267{
268 for (;;)
269 {
270 if (!XPending (display))
271 break;
272
273 x_cb (x_ev, 0);
274 }
275}
276
277void rxvt_display::reg (xevent_watcher *w)
278{
279 xw.push_back (w);
280 w->active = xw.size ();
281}
282
283void rxvt_display::unreg (xevent_watcher *w)
284{
285 if (w->active)
286 xw[w->active - 1] = 0;
287}
288
289void rxvt_display::set_selection_owner (rxvt_term *owner)
290{
291 if (selection_owner && selection_owner != owner)
292 selection_owner->selection_clear ();
293
294 selection_owner = owner;
295}
296
297#ifdef USE_XIM
298void rxvt_display::reg (im_watcher *w)
299{
300 imw.push_back (w);
301}
302
303void rxvt_display::unreg (im_watcher *w)
304{
305 imw.erase (find (imw.begin (), imw.end (), w));
306}
307
308rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers)
309{
310 char *id;
311 int l, m;
312
313 l = strlen (locale);
314 m = strlen (modifiers);
315
316 if (!(id = (char *)malloc (l + m + 2)))
317 return 0;
318
319 memcpy (id, locale, l); id[l] = '\n';
320 memcpy (id + l + 1, modifiers, m); id[l + m + 1] = 0;
321
322 rxvt_xim *xim = xims.get (id);
323
324 free (id);
325
326 return xim;
327}
328
329void rxvt_display::put_xim (rxvt_xim *xim)
330{
331 xims.put (xim);
332}
333#endif
334
335Atom rxvt_display::atom (const char *name)
336{
337 return XInternAtom (display, name, False);
338}
339
340/////////////////////////////////////////////////////////////////////////////
341
342template class refcache<rxvt_display>;
343refcache<rxvt_display> displays;
344
345/////////////////////////////////////////////////////////////////////////////
346
6bool 347bool
7rxvt_color::set (pR_ Pixel p) 348rxvt_color::set (rxvt_display *display, Pixel p)
8{ 349{
9#if XFT 350#if XFT
10 XColor xc; 351 XColor xc;
11 352
12 xc.pixel = p; 353 xc.pixel = p;
13 if (!XQueryColor (R->Xdisplay, R->Xcmap, &xc)) 354 if (!XQueryColor (display->display, display->cmap, &xc))
14 return false; 355 return false;
15 356
16 XRenderColor d; 357 XRenderColor d;
17 358
18 d.red = xc.red; 359 d.red = xc.red;
19 d.green = xc.green; 360 d.green = xc.green;
20 d.blue = xc.blue; 361 d.blue = xc.blue;
21 d.alpha = 0xffff; 362 d.alpha = 0xffff;
22 363
23 return 364 return
24 XftColorAllocValue (R->Xdisplay, 365 XftColorAllocValue (display->display,
25 R->Xvisual, 366 display->visual,
26 R->Xcmap, 367 display->cmap,
27 &d,
28 &c); 368 &d, &c);
29#else 369#else
30 this->p = p; 370 this->p = p;
31#endif 371#endif
32 372
33 return true; 373 return true;
34} 374}
35 375
36bool 376bool
37rxvt_color::set (pR_ const char *name) 377rxvt_color::set (rxvt_display *display, const char *name)
38{ 378{
39 XColor xc; 379 XColor xc;
40 380
41 if (XParseColor (R->Xdisplay, R->Xcmap, name, &xc)) 381 if (XParseColor (display->display, display->cmap, name, &xc))
42 return set (aR_ xc.red, xc.green, xc.blue); 382 return set (display, xc.red, xc.green, xc.blue);
43 383
44 return false; 384 return false;
45} 385}
46 386
47bool 387bool
48rxvt_color::set (pR_ unsigned short cr, unsigned short cg, unsigned short cb) 388rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb)
49{ 389{
50 XColor xc; 390 XColor xc;
51 391
52 xc.red = cr; 392 xc.red = cr;
53 xc.green = cg; 393 xc.green = cg;
54 xc.blue = cb; 394 xc.blue = cb;
55 xc.flags = DoRed | DoGreen | DoBlue; 395 xc.flags = DoRed | DoGreen | DoBlue;
56 396
57 if (XAllocColor (R->Xdisplay, R->Xcmap, &xc)) 397 if (XAllocColor (display->display, display->cmap, &xc))
58 return set (aR_ xc.pixel); 398 return set (display, xc.pixel);
59 399
60 return false; 400 return false;
61} 401}
62 402
63void 403void
64rxvt_color::get (pR_ unsigned short &cr, unsigned short &cg, unsigned short &cb) 404rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb)
65{ 405{
66#if XFT 406#if XFT
67 cr = c.color.red; 407 cr = c.color.red;
68 cg = c.color.green; 408 cg = c.color.green;
69 cb = c.color.blue; 409 cb = c.color.blue;
70#else 410#else
71 XColor c; 411 XColor c;
72 412
73 c.pixel = p; 413 c.pixel = p;
74 XQueryColor (R->Xdisplay, R->Xcmap, &c); 414 XQueryColor (display->display, display->cmap, &c);
75 415
76 cr = c.red; 416 cr = c.red;
77 cg = c.green; 417 cg = c.green;
78 cb = c.blue; 418 cb = c.blue;
79#endif 419#endif
80} 420}
81 421
422void
423rxvt_color::free (rxvt_display *display)
424{
425#if XFT
426 XftColorFree (display->display, display->visual, display->cmap, &c);
427#else
428 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
429#endif
430}
431
432rxvt_color
433rxvt_color::fade (rxvt_display *display, int percent)
434{
435 unsigned short cr, cg, cb;
436 rxvt_color faded;
437
438 get (display, cr, cg, cb);
439 faded.set (display,
440 cr * percent / 100,
441 cg * percent / 100,
442 cb * percent / 100);
443
444 return faded;
445}
446

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