rxvt-unicode/src/rxvtcolor.C

#include "../config.h"
#include <rxvt.h>
#include <rxvtcolor.h>

#include <unistd.h>
#include <fcntl.h>

refcounted::refcounted (const char *id)
{
  this->id = STRDUP (id);
}

refcounted::~refcounted ()
{
  free (id);
}

template<class T>
T *refcache<T>::get (const char *id)
{
  for (T **i = begin (); i < end (); ++i)
    {
      if (!strcmp (id, (*i)->id))
        {
          (*i)->referenced++;
          return *i;
        }
    }

  T *obj = new T (id);

  obj->referenced = 1;

  if (obj && obj->init ())
    {
      push_back (obj);
      return obj;
    }
  else
    {
      delete obj;
      return 0;
    }
}

template<class T>
void refcache<T>::put (T *obj)
{
  if (!obj)
    return;

  if (!--obj->referenced)
    {
      erase (find (begin (), end (), obj));
      delete obj;
    }
}

template<class T>
refcache<T>::~refcache ()
{
  while (size ())
    put (*begin ());
}

/////////////////////////////////////////////////////////////////////////////

static void
im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3)
{
  rxvt_xim *xim = (rxvt_xim *)client_data;
  rxvt_display *display = xim->display;

  display->xims.erase (find (display->xims.begin (), display->xims.end (), xim));

  display->im_change_cb ();
}

bool rxvt_xim::init ()
{
  display = GET_R->display; //HACK: TODO

  xim = XOpenIM (display->display, NULL, NULL, NULL);

  if (!xim)
    return false;

  XIMCallback ximcallback;
  ximcallback.client_data = (XPointer)this;
  ximcallback.callback = im_destroy_cb;

  XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL);

  return true;
}

rxvt_xim::~rxvt_xim ()
{
  if (xim)
    XCloseIM (xim);
}

/////////////////////////////////////////////////////////////////////////////

rxvt_display::rxvt_display (const char *id)
: refcounted (id)
, x_ev (this, &rxvt_display::x_cb)
, selection_owner (0)
{
}

bool rxvt_display::init ()
{
  display = XOpenDisplay (id);

  if (!display)
    return false;

  screen = DefaultScreen (display);
  root   = DefaultRootWindow (display);
  visual = DefaultVisual (display, screen);
  cmap   = DefaultColormap (display, screen);
  depth  = DefaultDepth (display, screen);

#ifdef PREFER_24BIT
  /*
   * If depth is not 24, look for a 24bit visual.
   */
  if (depth != 24)
    {
      XVisualInfo vinfo;

      if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
        {
          depth = 24;
          visual = vinfo.visual;
          cmap = XCreateColormap (display,
                                  RootWindow (display, screen),
                                  visual, AllocNone);
        }
    }
#endif

  int fd = XConnectionNumber (display);
  x_ev.start (fd, EVENT_READ);
  fcntl (fd, F_SETFL, FD_CLOEXEC);

  XSelectInput (display, root, PropertyChangeMask);
  xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);

  flush ();

  return true;
}

rxvt_display::~rxvt_display ()
{
  x_ev.stop ();

  if (display)
    XCloseDisplay (display);
}

void rxvt_display::im_change_cb ()
{
  for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
    (*i)->call ();
}

void rxvt_display::x_cb (io_watcher &w, short revents)
{
  do
    {
      XEvent xev;
      XNextEvent (display, &xev);

      //printf ("T %d w %lx\n", xev.type, xev.xany.window);//D

      if (xev.type == PropertyNotify
          && xev.xany.window == root
          && xev.xproperty.atom == xa_xim_servers)
        im_change_cb ();

      for (int i = xw.size (); i--; )
        {
          if (!xw[i])
            xw.erase_unordered (i);
          else if (xw[i]->window == xev.xany.window)
            xw[i]->call (xev);
        }
    }
  while (XPending (display));

  flush ();
}

void rxvt_display::flush ()
{
  for (;;)
    {
      XFlush (display);

      if (!XPending (display))
        break;

      x_cb (x_ev, 0);
    }
}

void rxvt_display::reg (xevent_watcher *w)
{
  xw.push_back (w);
  w->active = xw.size ();
}

void rxvt_display::unreg (xevent_watcher *w)
{
  if (w->active)
    xw[w->active - 1] = 0;
}

void rxvt_display::reg (im_watcher *w)
{
  imw.push_back (w);
}

void rxvt_display::unreg (im_watcher *w)
{
  imw.erase (find (imw.begin (), imw.end (), w));
}

void rxvt_display::set_selection_owner (rxvt_term *owner)
{
  if (selection_owner && selection_owner != owner)
    selection_owner->selection_clear ();

  selection_owner = owner;
}

rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers)
{
  // asprintf is a GNU and *BSD extension.. sorry...
  char *id;

  if (asprintf (&id, "%s\n%s", locale, modifiers) < 0)
    return 0;

  rxvt_xim *xim = xims.get (id);

  free (id);

  return xim;
}

void rxvt_display::put_xim (rxvt_xim *xim)
{
  xims.put (xim);
}

/////////////////////////////////////////////////////////////////////////////

template refcache<rxvt_display>;
refcache<rxvt_display> displays;

/////////////////////////////////////////////////////////////////////////////
  
bool
rxvt_color::set (rxvt_display *display, Pixel p)
{
#if XFT
  XColor xc;

  xc.pixel = p;
  if (!XQueryColor (display->display, display->cmap, &xc))
    return false;

  XRenderColor d;

  d.red   = xc.red;
  d.green = xc.green;
  d.blue  = xc.blue;
  d.alpha = 0xffff;

  return
    XftColorAllocValue (display->display, 
                        display->visual,
                        display->cmap,
                        &d, &c);
#else
  this->p = p;
#endif

  return true;
}

bool
rxvt_color::set (rxvt_display *display, const char *name)
{
  XColor xc;

  if (XParseColor (display->display, display->cmap, name, &xc))
    return set (display, xc.red, xc.green, xc.blue);

  return false;
}

bool
rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb)
{
  XColor xc;

  xc.red   = cr;
  xc.green = cg;
  xc.blue  = cb;
  xc.flags = DoRed | DoGreen | DoBlue;

  if (XAllocColor (display->display, display->cmap, &xc))
    return set (display, xc.pixel);

  return false;
}

void 
rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb)
{
#if XFT
  cr = c.color.red;
  cg = c.color.green;
  cb = c.color.blue;
#else
  XColor c;

  c.pixel = p;
  XQueryColor (display->display, display->cmap, &c);

  cr = c.red;
  cg = c.green;
  cb = c.blue;
#endif
}

void 
rxvt_color::free (rxvt_display *display)
{
#if XFT
  XftColorFree (display->display, display->visual, display->cmap, &c);
#else
  XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
#endif
}

Revision:	1.9
Committed:	Sun Mar 14 17:33:08 2004 UTC (20 years, 2 months ago) by pcg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-2_4, rel-2_5, rel-2_3
Changes since 1.8:	+5 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.1	#include "../config.h"
2			#include <rxvt.h>
3	pcg	1.4	#include <rxvtcolor.h>
4	pcg	1.1
5	pcg	1.4	#include <unistd.h>
6			#include <fcntl.h>
7	pcg	1.1
8	pcg	1.6	refcounted::refcounted (const char *id)
9			{
10			this->id = STRDUP (id);
11			}
12
13			refcounted::~refcounted ()
14			{
15			free (id);
16			}
17
18			template<class T>
19			T refcache<T>::get (const char id)
20			{
21			for (T **i = begin (); i < end (); ++i)
22			{
23			if (!strcmp (id, (*i)->id))
24			{
25			(*i)->referenced++;
26			return *i;
27			}
28			}
29
30			T *obj = new T (id);
31
32			obj->referenced = 1;
33
34			if (obj && obj->init ())
35			{
36			push_back (obj);
37			return obj;
38			}
39			else
40			{
41			delete obj;
42			return 0;
43			}
44			}
45
46			template<class T>
47			void refcache<T>::put (T *obj)
48			{
49			if (!obj)
50			return;
51
52			if (!--obj->referenced)
53			{
54			erase (find (begin (), end (), obj));
55			delete obj;
56			}
57			}
58
59			template<class T>
60			refcache<T>::~refcache ()
61			{
62			while (size ())
63			put (*begin ());
64			}
65
66	pcg	1.4	/////////////////////////////////////////////////////////////////////////////
67
68	pcg	1.6	static void
69			im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3)
70			{
71			rxvt_xim xim = (rxvt_xim )client_data;
72			rxvt_display *display = xim->display;
73
74			display->xims.erase (find (display->xims.begin (), display->xims.end (), xim));
75
76			display->im_change_cb ();
77			}
78
79			bool rxvt_xim::init ()
80			{
81			display = GET_R->display; //HACK: TODO
82
83			xim = XOpenIM (display->display, NULL, NULL, NULL);
84
85			if (!xim)
86			return false;
87
88			XIMCallback ximcallback;
89			ximcallback.client_data = (XPointer)this;
90			ximcallback.callback = im_destroy_cb;
91
92			XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL);
93
94			return true;
95			}
96
97			rxvt_xim::~rxvt_xim ()
98	pcg	1.4	{
99	pcg	1.6	if (xim)
100			XCloseIM (xim);
101	pcg	1.4	}
102
103	pcg	1.6	/////////////////////////////////////////////////////////////////////////////
104
105			rxvt_display::rxvt_display (const char *id)
106			: refcounted (id)
107	pcg	1.7	, x_ev (this, &rxvt_display::x_cb)
108	pcg	1.6	, selection_owner (0)
109	pcg	1.4	{
110			}
111
112	pcg	1.6	bool rxvt_display::init ()
113	pcg	1.4	{
114	pcg	1.6	display = XOpenDisplay (id);
115	pcg	1.4
116	pcg	1.9	if (!display)
117			return false;
118
119	pcg	1.4	screen = DefaultScreen (display);
120			root = DefaultRootWindow (display);
121			visual = DefaultVisual (display, screen);
122			cmap = DefaultColormap (display, screen);
123			depth = DefaultDepth (display, screen);
124
125			#ifdef PREFER_24BIT
126			/*
127			* If depth is not 24, look for a 24bit visual.
128			*/
129			if (depth != 24)
130			{
131			XVisualInfo vinfo;
132
133			if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
134			{
135			depth = 24;
136			visual = vinfo.visual;
137			cmap = XCreateColormap (display,
138			RootWindow (display, screen),
139			visual, AllocNone);
140			}
141			}
142			#endif
143
144			int fd = XConnectionNumber (display);
145	pcg	1.7	x_ev.start (fd, EVENT_READ);
146	pcg	1.4	fcntl (fd, F_SETFL, FD_CLOEXEC);
147
148	pcg	1.6	XSelectInput (display, root, PropertyChangeMask);
149			xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
150
151	pcg	1.7	flush ();
152
153	pcg	1.4	return true;
154			}
155
156	pcg	1.6	rxvt_display::~rxvt_display ()
157	pcg	1.4	{
158	pcg	1.7	x_ev.stop ();
159	pcg	1.4
160	pcg	1.9	if (display)
161			XCloseDisplay (display);
162	pcg	1.4	}
163
164	pcg	1.6	void rxvt_display::im_change_cb ()
165			{
166			for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
167			(*i)->call ();
168			}
169
170	pcg	1.7	void rxvt_display::x_cb (io_watcher &w, short revents)
171	pcg	1.4	{
172			do
173			{
174			XEvent xev;
175			XNextEvent (display, &xev);
176
177	pcg	1.6	//printf ("T %d w %lx\n", xev.type, xev.xany.window);//D
178
179			if (xev.type == PropertyNotify
180			&& xev.xany.window == root
181			&& xev.xproperty.atom == xa_xim_servers)
182			im_change_cb ();
183
184	pcg	1.4	for (int i = xw.size (); i--; )
185			{
186			if (!xw[i])
187			xw.erase_unordered (i);
188			else if (xw[i]->window == xev.xany.window)
189			xw[i]->call (xev);
190			}
191			}
192			while (XPending (display));
193	pcg	1.7
194			flush ();
195			}
196
197			void rxvt_display::flush ()
198			{
199			for (;;)
200			{
201			XFlush (display);
202
203			if (!XPending (display))
204			break;
205
206			x_cb (x_ev, 0);
207			}
208	pcg	1.4	}
209
210			void rxvt_display::reg (xevent_watcher *w)
211			{
212			xw.push_back (w);
213			w->active = xw.size ();
214			}
215
216			void rxvt_display::unreg (xevent_watcher *w)
217			{
218			if (w->active)
219			xw[w->active - 1] = 0;
220			}
221
222	pcg	1.6	void rxvt_display::reg (im_watcher *w)
223			{
224			imw.push_back (w);
225			}
226
227			void rxvt_display::unreg (im_watcher *w)
228			{
229			imw.erase (find (imw.begin (), imw.end (), w));
230			}
231
232	pcg	1.5	void rxvt_display::set_selection_owner (rxvt_term *owner)
233			{
234			if (selection_owner && selection_owner != owner)
235			selection_owner->selection_clear ();
236
237			selection_owner = owner;
238			}
239
240	pcg	1.6	rxvt_xim rxvt_display::get_xim (const char locale, const char *modifiers)
241	pcg	1.4	{
242	pcg	1.6	// asprintf is a GNU and *BSD extension.. sorry...
243			char *id;
244	pcg	1.4
245	pcg	1.6	if (asprintf (&id, "%s\n%s", locale, modifiers) < 0)
246			return 0;
247	pcg	1.4
248	pcg	1.6	rxvt_xim *xim = xims.get (id);
249	pcg	1.4
250	pcg	1.6	free (id);
251	pcg	1.4
252	pcg	1.6	return xim;
253	pcg	1.4	}
254
255	pcg	1.6	void rxvt_display::put_xim (rxvt_xim *xim)
256	pcg	1.4	{
257	pcg	1.6	xims.put (xim);
258	pcg	1.4	}
259
260			/////////////////////////////////////////////////////////////////////////////
261	pcg	1.6
262			template refcache<rxvt_display>;
263			refcache<rxvt_display> displays;
264
265			/////////////////////////////////////////////////////////////////////////////
266	pcg	1.4
267	pcg	1.1	bool
268	pcg	1.4	rxvt_color::set (rxvt_display *display, Pixel p)
269	pcg	1.1	{
270			#if XFT
271			XColor xc;
272
273			xc.pixel = p;
274	pcg	1.4	if (!XQueryColor (display->display, display->cmap, &xc))
275	pcg	1.1	return false;
276
277			XRenderColor d;
278
279			d.red = xc.red;
280			d.green = xc.green;
281			d.blue = xc.blue;
282			d.alpha = 0xffff;
283
284			return
285	pcg	1.4	XftColorAllocValue (display->display,
286			display->visual,
287			display->cmap,
288			&d, &c);
289	pcg	1.1	#else
290			this->p = p;
291			#endif
292
293			return true;
294			}
295
296			bool
297	pcg	1.4	rxvt_color::set (rxvt_display display, const char name)
298	pcg	1.1	{
299			XColor xc;
300
301	pcg	1.4	if (XParseColor (display->display, display->cmap, name, &xc))
302			return set (display, xc.red, xc.green, xc.blue);
303	pcg	1.1
304			return false;
305			}
306
307			bool
308	pcg	1.4	rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb)
309	pcg	1.1	{
310			XColor xc;
311
312			xc.red = cr;
313			xc.green = cg;
314			xc.blue = cb;
315			xc.flags = DoRed \| DoGreen \| DoBlue;
316
317	pcg	1.4	if (XAllocColor (display->display, display->cmap, &xc))
318			return set (display, xc.pixel);
319	pcg	1.1
320			return false;
321			}
322
323			void
324	pcg	1.4	rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb)
325	pcg	1.1	{
326			#if XFT
327			cr = c.color.red;
328			cg = c.color.green;
329			cb = c.color.blue;
330			#else
331			XColor c;
332
333			c.pixel = p;
334	pcg	1.4	XQueryColor (display->display, display->cmap, &c);
335	pcg	1.1
336			cr = c.red;
337			cg = c.green;
338			cb = c.blue;
339			#endif
340			}
341
342	pcg	1.4	void
343			rxvt_color::free (rxvt_display *display)
344			{
345			#if XFT
346			XftColorFree (display->display, display->visual, display->cmap, &c);
347			#else
348	pcg	1.8	XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
349	pcg	1.4	#endif
350			}
351