1 /*----------------------------------------------------------------------*
2 * File: rxvttoolkit.h - provide toolkit-functionality for rxvt.
3 *----------------------------------------------------------------------*
5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com>
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.
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.
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 *----------------------------------------------------------------------*/
23 #ifndef RXVT_TOOLKIT_H
24 #define RXVT_TOOLKIT_H
29 # include <X11/Xft/Xft.h>
39 // see rxvttoolkit.C:xa_names, which must be kept in sync
70 #if ENABLE_TRANSPARENCY
79 // these are usually allocated by other subsystens, but we do it
80 // here to avoid a server roundtrip.
82 XA_XDCCC_LINEAR_RGB_CORRECTION,
83 XA_XDCCC_LINEAR_RGB_MATRICES,
84 XA_WM_COLORMAP_WINDOWS,
88 // various selection targets used by XIM
103 struct xevent_watcher;
105 template<class watcher>
106 struct event_vec : vector<watcher *> {
107 void erase_unordered (unsigned int pos)
109 watcher *w = (*this)[this->size () - 1];
113 if (((*this)[pos] = w)) // '=' is correct!
118 struct rxvt_watcher {
119 int active; /* 0 == inactive, else index into respective vector */
121 bool is_active () { return active; }
123 rxvt_watcher () : active (0) { }
130 refcounted (const char *id);
131 bool ref_init () { return false; }
137 struct refcache : vector<T *> {
138 T *get (const char *id);
148 /////////////////////////////////////////////////////////////////////////////
152 struct rxvt_drawable {
155 operator Drawable() { return drawable; }
158 XftDraw *xftdrawable;
159 operator XftDraw *();
162 rxvt_drawable (rxvt_screen *screen, Drawable drawable)
175 /////////////////////////////////////////////////////////////////////////////
178 struct rxvt_xim : refcounted {
180 rxvt_display *display;
185 rxvt_xim (const char *id) : refcounted (id) { }
192 rxvt_display *display;
200 rxvt_drawable *scratch_area;
201 int scratch_w, scratch_h;
203 rxvt_drawable &scratch_drawable (int w, int h);
208 void set (rxvt_display *disp);
209 void select_visual (int bitdepth);
213 struct rxvt_display : refcounted {
214 event_vec<xevent_watcher> xw;
216 ev::io x_ev; void x_cb (ev::io &w, int revents);
219 refcache<rxvt_xim> xims;
220 vector<im_watcher *> imw;
222 void im_change_cb ();
223 void im_change_check ();
230 rxvt_term *selection_owner;
237 rxvt_display (const char *id);
238 XrmDatabase get_resources (bool refresh);
244 Atom atom (const char *name);
245 void set_selection_owner (rxvt_term *owner);
247 void reg (xevent_watcher *w);
248 void unreg (xevent_watcher *w);
251 void reg (im_watcher *w);
252 void unreg (im_watcher *w);
254 rxvt_xim *get_xim (const char *locale, const char *modifiers);
255 void put_xim (rxvt_xim *xim);
260 struct im_watcher : rxvt_watcher, callback<void (void)> {
261 template<class O, class M>
262 im_watcher (O object, M method)
263 : callback<void (void)> (object, method)
266 void start (rxvt_display *display)
271 void stop (rxvt_display *display)
273 display->unreg (this);
278 struct xevent_watcher : rxvt_watcher, callback<void (XEvent &)> {
281 template<class O, class M>
282 xevent_watcher (O object, M method)
283 : callback<void (XEvent &)> (object, method)
286 void start (rxvt_display *display, Window window)
288 this->window = window;
292 void stop (rxvt_display *display)
294 display->unreg (this);
298 extern refcache<rxvt_display> displays;
300 /////////////////////////////////////////////////////////////////////////////
302 typedef unsigned long Pixel;
305 unsigned short r, g, b, a;
307 enum { MIN_CC = 0x0000, MAX_CC = 0xffff };
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)
324 operator Pixel () const { return c.pixel; }
326 bool operator == (const rxvt_color &b) const { return Pixel (*this) == Pixel (b); }
327 bool operator != (const rxvt_color &b) const { return Pixel (*this) != Pixel (b); }
329 bool alloc (rxvt_screen *screen, const rgba &color);
330 void free (rxvt_screen *screen);
332 void get (rgba &color);
333 void get (XColor &color);
335 bool set (rxvt_screen *screen, const char *name);
336 bool set (rxvt_screen *screen, const rgba &color);
338 void fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to = rgba (0, 0, 0));