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/cvs/rxvt-unicode/src/rxvttoolkit.h
Revision: 1.37
Committed: Fri Dec 14 04:26:23 2007 UTC (16 years, 5 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.36: +22 -11 lines
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# Content
1 /*----------------------------------------------------------------------*
2 * File: rxvttoolkit.h - provide toolkit-functionality for rxvt.
3 *----------------------------------------------------------------------*
4 *
5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2003-2006 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
23 #ifndef RXVT_TOOLKIT_H
24 #define RXVT_TOOLKIT_H
25
26 #include <X11/Xlib.h>
27
28 #if XFT
29 # include <X11/Xft/Xft.h>
30 #endif
31
32 #include "ev_cpp.h"
33
34 #include "rxvtlib.h"
35 #include "rxvtutil.h"
36
37 #include "callback.h"
38
39 // see rxvttoolkit.C:xa_names, which must be kept in sync
40 enum {
41 XA_TEXT,
42 XA_COMPOUND_TEXT,
43 XA_UTF8_STRING,
44 XA_MULTIPLE,
45 XA_TARGETS,
46 XA_TIMESTAMP,
47 XA_VT_SELECTION,
48 XA_INCR,
49 XA_WM_PROTOCOLS,
50 XA_WM_DELETE_WINDOW,
51 XA_CLIPBOARD,
52 XA_AVERAGE_WIDTH,
53 XA_WEIGHT_NAME,
54 XA_SLANT,
55 XA_CHARSET_REGISTRY,
56 XA_CHARSET_ENCODING,
57 #if ENABLE_FRILLS
58 XA_MOTIF_WM_HINTS,
59 #endif
60 #if ENABLE_EWMH
61 XA_NET_WM_PID,
62 XA_NET_WM_NAME,
63 XA_NET_WM_ICON_NAME,
64 XA_NET_WM_PING,
65 #endif
66 #if USE_XIM
67 XA_WM_LOCALE_NAME,
68 XA_XIM_SERVERS,
69 #endif
70 #if ENABLE_TRANSPARENCY
71 XA_XROOTPMAP_ID,
72 XA_ESETROOT_PMAP_ID,
73 #endif
74 #if ENABLE_XEMBED
75 XA_XEMBED,
76 XA_XEMBED_INFO,
77 #endif
78 #if !ENABLE_MINIMAL
79 // these are usually allocated by other subsystens, but we do it
80 // here to avoid a server roundtrip.
81 XA_SCREEN_RESOURCES,
82 XA_XDCCC_LINEAR_RGB_CORRECTION,
83 XA_XDCCC_LINEAR_RGB_MATRICES,
84 XA_WM_COLORMAP_WINDOWS,
85 XA_WM_STATE,
86 XA_cursor,
87 # if USE_XIM
88 // various selection targets used by XIM
89 XA_TRANSPORT,
90 XA_LOCALES,
91 XA__XIM_PROTOCOL,
92 XA__XIM_XCONNECT,
93 XA__XIM_MOREDATA,
94 # endif
95 #endif
96 NUM_XA
97 };
98
99 struct rxvt_term;
100 struct rxvt_display;
101
102 struct im_watcher;
103 struct xevent_watcher;
104
105 template<class watcher>
106 struct event_vec : vector<watcher *>
107 {
108 void erase_unordered (unsigned int pos)
109 {
110 watcher *w = (*this)[this->size () - 1];
111 this->pop_back ();
112
113 if (!this->empty ())
114 if (((*this)[pos] = w)) // '=' is correct!
115 w->active = pos + 1;
116 }
117 };
118
119 struct rxvt_watcher
120 {
121 int active; /* 0 == inactive, else index into respective vector */
122
123 bool is_active () { return active; }
124
125 rxvt_watcher () : active (0) { }
126 };
127
128 struct refcounted
129 {
130 int referenced;
131 char *id;
132
133 refcounted (const char *id);
134 bool ref_init () { return false; }
135 void ref_next () { }
136 ~refcounted ();
137 };
138
139 template<class T>
140 struct refcache : vector<T *>
141 {
142 T *get (const char *id);
143 void put (T *obj);
144 void clear ();
145
146 ~refcache ()
147 {
148 clear ();
149 }
150 };
151
152 /////////////////////////////////////////////////////////////////////////////
153
154 struct rxvt_screen;
155
156 struct rxvt_drawable
157 {
158 rxvt_screen *screen;
159 Drawable drawable;
160 operator Drawable() { return drawable; }
161
162 #if XFT
163 XftDraw *xftdrawable;
164 operator XftDraw *();
165 #endif
166
167 rxvt_drawable (rxvt_screen *screen, Drawable drawable)
168 : screen(screen),
169 #if XFT
170 xftdrawable(0),
171 #endif
172 drawable(drawable)
173 { }
174
175 #if XFT
176 ~rxvt_drawable ();
177 #endif
178 };
179
180 /////////////////////////////////////////////////////////////////////////////
181
182 #ifdef USE_XIM
183 struct rxvt_xim : refcounted
184 {
185 void destroy ();
186 rxvt_display *display;
187
188 //public
189 XIM xim;
190
191 rxvt_xim (const char *id) : refcounted (id) { }
192 bool ref_init ();
193 ~rxvt_xim ();
194 };
195 #endif
196
197 struct rxvt_screen
198 {
199 rxvt_display *display;
200 Display *dpy;
201 int depth;
202 Visual *visual;
203 Colormap cmap;
204
205 #if XFT
206 // scratch pixmap
207 rxvt_drawable *scratch_area;
208 int scratch_w, scratch_h;
209
210 rxvt_drawable &scratch_drawable (int w, int h);
211
212 rxvt_screen ();
213 #endif
214
215 void set (rxvt_display *disp);
216 void select_visual (int bitdepth);
217 void clear ();
218 };
219
220 struct rxvt_display : refcounted
221 {
222 event_vec<xevent_watcher> xw;
223
224 ev::io x_ev; void x_cb (ev::io &w, int revents);
225
226 #ifdef USE_XIM
227 refcache<rxvt_xim> xims;
228 vector<im_watcher *> imw;
229
230 void im_change_cb ();
231 void im_change_check ();
232 #endif
233
234 //public
235 Display *dpy;
236 int screen;
237 Window root;
238 rxvt_term *selection_owner;
239 Atom xa[NUM_XA];
240 bool is_local;
241 #ifdef POINTER_BLANK
242 Cursor blank_cursor;
243 #endif
244
245 rxvt_display (const char *id);
246 XrmDatabase get_resources (bool refresh);
247 bool ref_init ();
248 void ref_next ();
249 ~rxvt_display ();
250
251 void flush ();
252 Atom atom (const char *name);
253 void set_selection_owner (rxvt_term *owner);
254
255 void reg (xevent_watcher *w);
256 void unreg (xevent_watcher *w);
257
258 #ifdef USE_XIM
259 void reg (im_watcher *w);
260 void unreg (im_watcher *w);
261
262 rxvt_xim *get_xim (const char *locale, const char *modifiers);
263 void put_xim (rxvt_xim *xim);
264 #endif
265 };
266
267 #ifdef USE_XIM
268 struct im_watcher : rxvt_watcher, callback<void (void)> {
269 void start (rxvt_display *display)
270 {
271 display->reg (this);
272 }
273
274 void stop (rxvt_display *display)
275 {
276 display->unreg (this);
277 }
278 };
279 #endif
280
281 struct xevent_watcher : rxvt_watcher, callback<void (XEvent &)>
282 {
283 Window window;
284
285 void start (rxvt_display *display, Window window)
286 {
287 this->window = window;
288 display->reg (this);
289 }
290
291 void stop (rxvt_display *display)
292 {
293 display->unreg (this);
294 }
295 };
296
297 extern refcache<rxvt_display> displays;
298
299 /////////////////////////////////////////////////////////////////////////////
300
301 typedef unsigned long Pixel;
302
303 struct rgba
304 {
305 unsigned short r, g, b, a;
306
307 enum { MIN_CC = 0x0000, MAX_CC = 0xffff };
308
309 rgba ()
310 { }
311
312 rgba (unsigned short r, unsigned short g, unsigned short b, unsigned short a = MAX_CC)
313 : r(r), g(g), b(b), a(a)
314 { }
315 };
316
317 struct rxvt_color
318 {
319 #if XFT
320 XftColor c;
321 #else
322 XColor c;
323 #endif
324
325 operator Pixel () const { return c.pixel; }
326
327 bool operator == (const rxvt_color &b) const { return Pixel (*this) == Pixel (b); }
328 bool operator != (const rxvt_color &b) const { return Pixel (*this) != Pixel (b); }
329
330 bool alloc (rxvt_screen *screen, const rgba &color);
331 void free (rxvt_screen *screen);
332
333 void get (rgba &color);
334 void get (XColor &color);
335
336 bool set (rxvt_screen *screen, const char *name);
337 bool set (rxvt_screen *screen, const rgba &color);
338
339 void fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to = rgba (0, 0, 0));
340 };
341
342 #if TRACE_PIXMAPS
343 Pixmap trace_XCreatePixmap (const char *file, int line, Display *dpy, Window r, unsigned int w, unsigned int h, unsigned int d);
344 void trace_XFreePixmap (const char *file, int line, Display *dpy, Pixmap p);
345
346 # define XCreatePixmap(dpy,r,w,h,d) trace_XCreatePixmap (__FILE__,__LINE__,dpy,r,w,h,d)
347 # define XFreePixmap(dpy,p) trace_XFreePixmap (__FILE__,__LINE__,dpy,p)
348 #endif
349
350 #endif
351