rxvt-unicode/src/xpm.C

/*----------------------------------------------------------------------*
 * File:        xpm.C
 *----------------------------------------------------------------------*
 *
 * All portions of code are copyright by their respective author/s.
 * Copyright (c) 1997      Carsten Haitzler <raster@zip.com.au>
 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
 * Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
 * Copyright (c) 2005-2006 Marc Lehmann <pcg@goof.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *---------------------------------------------------------------------*/

#include "../config.h"          /* NECESSARY */
#include "rxvt.h"               /* NECESSARY */

#ifdef XPM_BACKGROUND

static void      rxvt_pixmap_incr                 (unsigned int *wh, unsigned int *xy, float *incr, float *p, unsigned int widthheight, unsigned int xpmwidthheight);

/*
 * These GEOM strings indicate absolute size/position:
 * @ `WxH+X+Y'
 * @ `WxH+X'    -> Y = X
 * @ `WxH'      -> Y = X = 50
 * @ `W+X+Y'    -> H = W
 * @ `W+X'      -> H = W, Y = X
 * @ `W'        -> H = W, X = Y = 50
 * @ `0xH'      -> H *= H/100, X = Y = 50 (W unchanged)
 * @ `Wx0'      -> W *= W/100, X = Y = 50 (H unchanged)
 * @ `=+X+Y'    -> (H, W unchanged)
 * @ `=+X'      -> Y = X (H, W unchanged)
 *
 * These GEOM strings adjust position relative to current position:
 * @ `+X+Y'
 * @ `+X'       -> Y = X
 *
 * And this GEOM string is for querying current scale/position:
 * @ `?'
 */
int
rxvt_term::scale_pixmap (const char *geom)
{
  int flags, changed = 0;
  int x = 0, y = 0;
  unsigned int w = 0, h = 0;
  unsigned int n;
  char *p;
  bgPixmap_t *bgpixmap = &bgPixmap;

#define MAXLEN_GEOM             sizeof("[10000x10000+10000+10000]")

  if (geom == NULL)
    return 0;

  char str[MAXLEN_GEOM];

  if (!strcmp (geom, "?"))
    {
      sprintf (str, "[%dx%d+%d+%d]",    /* can't presume snprintf () ! */
              min (bgpixmap->w, 32767), min (bgpixmap->h, 32767),
              min (bgpixmap->x, 32767), min (bgpixmap->y, 32767));
      process_xterm_seq (XTerm_title, str, CHAR_ST);
      return 0;
    }

  if ((p = strchr (geom, ';')) == NULL)
    p = strchr (geom, '\0');

  n = (p - geom);
  if (n < MAXLEN_GEOM)
    {
      strncpy (str, geom, n);
      str[n] = '\0';

      flags = XParseGeometry (str, &x, &y, &w, &h);

      if (!flags)
        {
          flags |= WidthValue;
          w = 0;
        }                       /* default is tile */

      if (flags & WidthValue)
        {
          if (!(flags & XValue))
            x = 50;

          if (!(flags & HeightValue))
            h = w;

          if (w && !h)
            {
              w = (bgpixmap->w * w) / 100;
              h = bgpixmap->h;
            }
          else if (h && !w)
            {
              w = bgpixmap->w;
              h = (bgpixmap->h * h) / 100;
            }

          min_it (w, 32767);
          min_it (h, 32767);

          if (bgpixmap->w != (short)w)
            {
              bgpixmap->w = (short)w;
              changed++;
            }

          if (bgpixmap->h != (short)h)
            {
              bgpixmap->h = (short)h;
              changed++;
            }
        }

      if (!(flags & YValue))
        {
          if (flags & XNegative)
            flags |= YNegative;

          y = x;
        }

      if (!(flags & WidthValue) && geom[0] != '=')
        {
          x += bgpixmap->x;
          y += bgpixmap->y;
        }

      if (xpmAttr.width && xpmAttr.height)
        {
          x = MOD(x, xpmAttr.width);
          y = MOD(y, xpmAttr.height);
        }

      if (bgpixmap->x != x)
        {
          bgpixmap->x = x;
          changed++;
        }

      if (bgpixmap->y != y)
        {
          bgpixmap->y = y;
          changed++;
        }
    }

  return changed;
}

void
rxvt_term::resize_pixmap ()
{
  XGCValues gcvalue;
  GC gc;

  if (pixmap != None)
    XFreePixmap (dpy, pixmap);

  if (bgPixmap.pixmap == None)
    { /* So be it: I'm not using pixmaps */
      pixmap = None;

#ifdef TRANSPARENT
      if (!OPTION (Opt_transparent) || !am_transparent)
#endif
        XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);

      return;
    }

  gcvalue.foreground = pix_colors[Color_bg];
  gc = XCreateGC (dpy, vt, GCForeground, &gcvalue);

  if (bgPixmap.pixmap != None)
    {   /* we have a specified pixmap */
      unsigned int w = bgPixmap.w, h = bgPixmap.h,
                   x = bgPixmap.x, y = bgPixmap.y;
      unsigned int xpmh = xpmAttr.height,
                   xpmw = xpmAttr.width;

      /*
       * don't zoom pixmap too much nor expand really small pixmaps
       */
      if (w > 32767 || h > 32767)
        w = 1;
      else if (width > (10 * xpmw)
               || height > (10 * xpmh))
        w = 0;          /* tile */

      if (!w)
        {
          /* basic X tiling - let the X server do it */
          pixmap = XCreatePixmap (dpy, vt, xpmw, xpmh, depth);

          XCopyArea (dpy, bgPixmap.pixmap, pixmap, gc, x, y, xpmw - x, xpmh - y,        0,        0);
          XCopyArea (dpy, bgPixmap.pixmap, pixmap, gc, x, 0, xpmw - x,        y,        0, xpmh - y);
          XCopyArea (dpy, bgPixmap.pixmap, pixmap, gc, 0, y,        x, xpmh - y, xpmw - x,        0);
          XCopyArea (dpy, bgPixmap.pixmap, pixmap, gc, 0, 0,        x,        y, xpmw - x, xpmh - y);
        }
      else
        {
          float incr, p;
          Pixmap tmp;

          pixmap = XCreatePixmap (dpy, vt, width, height, depth);
          /*
           * horizontal scaling
           */
          rxvt_pixmap_incr (&w, &x, &incr, &p, width, xpmw);

          tmp = XCreatePixmap (dpy, vt, width, xpmh, depth);
          XFillRectangle (dpy, tmp, gc, 0, 0, width, xpmh);

          for ( /*nil */ ; x < w; x++, p += incr)
            {
              if (p >= xpmw)
                p = 0;

              /* copy one column from the original pixmap to the tmp pixmap */
              XCopyArea (dpy, bgPixmap.pixmap, tmp, gc, (int)p, 0, 1, xpmh, (int)x, 0);
            }

          /*
           * vertical scaling
           */
          rxvt_pixmap_incr (&h, &y, &incr, &p, height, xpmh);

          if (y > 0)
            XFillRectangle (dpy, pixmap, gc, 0, 0, width, y);

          if (h < height)
            XFillRectangle (dpy, pixmap, gc, 0, (int)h, width, height - h + 1);

          for ( /*nil */ ; y < h; y++, p += incr)
            {
              if (p >= xpmh)
                p = 0;

              /* copy one row from the tmp pixmap to the main pixmap */
              XCopyArea (dpy, tmp, pixmap, gc, 0, (int)p, width, 1, 0, (int)y);
            }

          XFreePixmap (dpy, tmp);
        }
    }

  XSetWindowBackgroundPixmap (dpy, vt, pixmap);

  XFreeGC (dpy, gc);
#ifdef TRANSPARENT
  am_transparent = 0;
#endif
}

/*
 * Calculate tiling sizes and increments
 * At start, p == 0, incr == xpmwidthheight
 */
static void
rxvt_pixmap_incr (unsigned int *wh, unsigned int *xy, float *incr, float *p, unsigned int widthheight, unsigned int xpmwidthheight)
{
  unsigned int    cwh, cxy;
  float           cincr, cp;

  cp = 0;
  cincr = (float)xpmwidthheight;
  cxy = *xy;
  cwh = *wh;
  if (cwh == 1)
    {   /* display one image, no horizontal/vertical scaling */
      cincr = (float)widthheight;
      if (xpmwidthheight <= widthheight)
        {
          cwh = xpmwidthheight;
          cxy = (cxy * (widthheight - cwh)) / 100;      /* beware! order */
          cwh += cxy;
        }
      else
        {
          cxy = 0;
          cwh = widthheight;
        }
    }
  else if (cwh < 10)
    {   /* fit WH images across/down screen */
      cincr *= cwh;
      cxy = 0;
      cwh = widthheight;
    }
  else
    {
      cincr *= 100.0 / cwh;
      if (cwh < 100)
        {       /* contract */
          float           pos;

          cwh = (cwh * widthheight) / 100;
          pos = (float)cxy / 100 * widthheight - (cwh / 2);

          cxy = (widthheight - cwh);
          if (pos <= 0)
            cxy = 0;
          else if (pos < cxy)
            cxy = (int) pos;
          cwh += cxy;
        }
      else
        {       /* expand */
          if (cxy > 0)
            {   /* position */
              float           pos;

              pos = (float)cxy / 100 * xpmwidthheight - (cincr / 2);
              cp = xpmwidthheight - cincr;
              if (pos <= 0)
                cp = 0;
              else if (pos < cp)
                cp = pos;
            }
          cxy = 0;
          cwh = widthheight;
        }
    }
  cincr /= widthheight;
  *wh = cwh;
  *xy = cxy;
  *incr = cincr;
  *p = cp;
}

Pixmap
rxvt_term::set_bgPixmap (const char *file)
{
  char *f;

  assert (file != NULL);

  if (bgPixmap.pixmap != None)
    {
      XFreePixmap (dpy, bgPixmap.pixmap);
      bgPixmap.pixmap = None;
    }

  XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);

  if (*file != '\0')
    {
      /*      XWindowAttributes attr; */

      /*
       * we already have the required attributes
       */
      /*      XGetWindowAttributes (dpy, vt, &attr); */

      xpmAttr.closeness = 30000;
      xpmAttr.colormap = cmap;
      xpmAttr.visual = visual;
      xpmAttr.depth = depth;
      xpmAttr.valuemask = (XpmCloseness | XpmColormap | XpmVisual
                           | XpmDepth | XpmSize | XpmReturnPixels);

      /* search environment variables here too */
      f = (char *)rxvt_File_find (file, ".xpm", rs[Rs_path]);
      if (f == NULL
          || XpmReadFileToPixmap (dpy, display->root, f,
                                  &bgPixmap.pixmap, NULL,
                                  &xpmAttr))
        {
          char *p;

          /* semi-colon delimited */
          if ((p = strchr (file, ';')) == NULL)
            p = strchr (file, '\0');

          rxvt_warn ("couldn't load XPM file \"%.*s\", ignoring.\n", (p - file), file);
        }

      free (f);
    }

  resize_pixmap ();
  return bgPixmap.pixmap;
}

#endif                          /* XPM_BACKGROUND */
Revision:	1.36
Committed:	Sat Feb 17 16:43:58 2007 UTC (17 years, 3 months ago) by ayin
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-8_2
Changes since 1.35:	+4 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.34	/----------------------------------------------------------------------
2	pcg	1.12	* File: xpm.C
3	pcg	1.1	----------------------------------------------------------------------
4			*
5			* All portions of code are copyright by their respective author/s.
6			* Copyright (c) 1997 Carsten Haitzler <raster@zip.com.au>
7			* Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
8			* Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
9	root	1.33	* Copyright (c) 2005-2006 Marc Lehmann <pcg@goof.com>
10	pcg	1.1	*
11			* This program is free software; you can redistribute it and/or modify
12			* it under the terms of the GNU General Public License as published by
13			* the Free Software Foundation; either version 2 of the License, or
14			* (at your option) any later version.
15			*
16			* This program is distributed in the hope that it will be useful,
17			* but WITHOUT ANY WARRANTY; without even the implied warranty of
18			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19			* GNU General Public License for more details.
20			*
21			* You should have received a copy of the GNU General Public License
22			* along with this program; if not, write to the Free Software
23			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24			---------------------------------------------------------------------/
25
26			#include "../config.h" /* NECESSARY */
27			#include "rxvt.h" /* NECESSARY */
28
29			#ifdef XPM_BACKGROUND
30
31	root	1.22	static void rxvt_pixmap_incr (unsigned int wh, unsigned int xy, float incr, float p, unsigned int widthheight, unsigned int xpmwidthheight);
32
33	pcg	1.1	/*
34			* These GEOM strings indicate absolute size/position:
35			* @ `WxH+X+Y'
36			* @ `WxH+X' -> Y = X
37			* @ `WxH' -> Y = X = 50
38			* @ `W+X+Y' -> H = W
39			* @ `W+X' -> H = W, Y = X
40			* @ `W' -> H = W, X = Y = 50
41			* @ `0xH' -> H *= H/100, X = Y = 50 (W unchanged)
42			* @ `Wx0' -> W *= W/100, X = Y = 50 (H unchanged)
43			* @ `=+X+Y' -> (H, W unchanged)
44			* @ `=+X' -> Y = X (H, W unchanged)
45			*
46			* These GEOM strings adjust position relative to current position:
47			* @ `+X+Y'
48			* @ `+X' -> Y = X
49			*
50			* And this GEOM string is for querying current scale/position:
51			* @ `?'
52			*/
53			int
54	pcg	1.5	rxvt_term::scale_pixmap (const char *geom)
55	pcg	1.1	{
56	root	1.28	int flags, changed = 0;
57			int x = 0, y = 0;
58			unsigned int w = 0, h = 0;
59			unsigned int n;
60			char *p;
61	root	1.35	bgPixmap_t *bgpixmap = &bgPixmap;
62	pcg	1.1
63	root	1.28	#define MAXLEN_GEOM sizeof("[10000x10000+10000+10000]")
64	pcg	1.1
65	pcg	1.7	if (geom == NULL)
66			return 0;
67	root	1.28
68			char str[MAXLEN_GEOM];
69
70	root	1.17	if (!strcmp (geom, "?"))
71	pcg	1.7	{
72	pcg	1.9	sprintf (str, "[%dx%d+%d+%d]", /* can't presume snprintf () ! */
73	root	1.28	min (bgpixmap->w, 32767), min (bgpixmap->h, 32767),
74			min (bgpixmap->x, 32767), min (bgpixmap->y, 32767));
75	pcg	1.11	process_xterm_seq (XTerm_title, str, CHAR_ST);
76	pcg	1.7	return 0;
77	pcg	1.1	}
78
79	root	1.17	if ((p = strchr (geom, ';')) == NULL)
80			p = strchr (geom, '\0');
81	root	1.28
82	pcg	1.7	n = (p - geom);
83	root	1.35	if (n < MAXLEN_GEOM)
84	pcg	1.7	{
85	root	1.17	strncpy (str, geom, n);
86	pcg	1.7	str[n] = '\0';
87
88	pcg	1.9	flags = XParseGeometry (str, &x, &y, &w, &h);
89	root	1.28
90	pcg	1.7	if (!flags)
91			{
92			flags \|= WidthValue;
93			w = 0;
94			} /* default is tile */
95	root	1.28
96	pcg	1.7	if (flags & WidthValue)
97			{
98	root	1.28	if (!(flags & XValue))
99	pcg	1.7	x = 50;
100	root	1.28
101			if (!(flags & HeightValue))
102	pcg	1.7	h = w;
103	root	1.28
104	pcg	1.7	if (w && !h)
105			{
106			w = (bgpixmap->w * w) / 100;
107			h = bgpixmap->h;
108			}
109			else if (h && !w)
110			{
111			w = bgpixmap->w;
112			h = (bgpixmap->h * h) / 100;
113			}
114	root	1.28
115			min_it (w, 32767);
116			min_it (h, 32767);
117
118	pcg	1.7	if (bgpixmap->w != (short)w)
119			{
120			bgpixmap->w = (short)w;
121			changed++;
122			}
123	root	1.28
124	pcg	1.7	if (bgpixmap->h != (short)h)
125			{
126			bgpixmap->h = (short)h;
127			changed++;
128			}
129			}
130	root	1.28
131			if (!(flags & YValue))
132	pcg	1.7	{
133			if (flags & XNegative)
134			flags \|= YNegative;
135	root	1.28
136	pcg	1.7	y = x;
137			}
138
139	root	1.28	if (!(flags & WidthValue) && geom[0] != '=')
140	pcg	1.7	{
141			x += bgpixmap->x;
142			y += bgpixmap->y;
143			}
144	root	1.28
145			if (xpmAttr.width && xpmAttr.height)
146	pcg	1.7	{
147	root	1.28	x = MOD(x, xpmAttr.width);
148			y = MOD(y, xpmAttr.height);
149			}
150
151	pcg	1.7	if (bgpixmap->x != x)
152			{
153			bgpixmap->x = x;
154			changed++;
155			}
156	root	1.28
157	pcg	1.7	if (bgpixmap->y != y)
158			{
159			bgpixmap->y = y;
160			changed++;
161			}
162	pcg	1.1	}
163	root	1.28
164	pcg	1.7	return changed;
165	pcg	1.1	}
166
167			void
168	pcg	1.5	rxvt_term::resize_pixmap ()
169	pcg	1.1	{
170	root	1.27	XGCValues gcvalue;
171			GC gc;
172	pcg	1.7
173	root	1.24	if (pixmap != None)
174	root	1.31	XFreePixmap (dpy, pixmap);
175	pcg	1.7
176			if (bgPixmap.pixmap == None)
177			{ /* So be it: I'm not using pixmaps */
178	root	1.24	pixmap = None;
179	root	1.20
180	ayin	1.36	#ifdef TRANSPARENT
181	root	1.26	if (!OPTION (Opt_transparent) \|\| !am_transparent)
182	ayin	1.36	#endif
183	root	1.31	XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);
184	root	1.20
185	pcg	1.7	return;
186	pcg	1.1	}
187
188	root	1.17	gcvalue.foreground = pix_colors[Color_bg];
189	root	1.31	gc = XCreateGC (dpy, vt, GCForeground, &gcvalue);
190	pcg	1.1
191	pcg	1.7	if (bgPixmap.pixmap != None)
192			{ /* we have a specified pixmap */
193	root	1.28	unsigned int w = bgPixmap.w, h = bgPixmap.h,
194			x = bgPixmap.x, y = bgPixmap.y;
195			unsigned int xpmh = xpmAttr.height,
196			xpmw = xpmAttr.width;
197	pcg	1.7
198			/*
199			* don't zoom pixmap too much nor expand really small pixmaps
200			*/
201	root	1.28	if (w > 32767 \|\| h > 32767)
202	pcg	1.7	w = 1;
203			else if (width > (10 * xpmw)
204			\|\| height > (10 * xpmh))
205			w = 0; /* tile */
206
207	root	1.28	if (!w)
208	pcg	1.7	{
209			/* basic X tiling - let the X server do it */
210	root	1.31	pixmap = XCreatePixmap (dpy, vt, xpmw, xpmh, depth);
211	root	1.28
212	root	1.31	XCopyArea (dpy, bgPixmap.pixmap, pixmap, gc, x, y, xpmw - x, xpmh - y, 0, 0);
213			XCopyArea (dpy, bgPixmap.pixmap, pixmap, gc, x, 0, xpmw - x, y, 0, xpmh - y);
214			XCopyArea (dpy, bgPixmap.pixmap, pixmap, gc, 0, y, x, xpmh - y, xpmw - x, 0);
215			XCopyArea (dpy, bgPixmap.pixmap, pixmap, gc, 0, 0, x, y, xpmw - x, xpmh - y);
216	pcg	1.7	}
217			else
218			{
219	root	1.27	float incr, p;
220			Pixmap tmp;
221	pcg	1.7
222	root	1.31	pixmap = XCreatePixmap (dpy, vt, width, height, depth);
223	pcg	1.7	/*
224			* horizontal scaling
225			*/
226	pcg	1.9	rxvt_pixmap_incr (&w, &x, &incr, &p, width, xpmw);
227	pcg	1.7
228	root	1.31	tmp = XCreatePixmap (dpy, vt, width, xpmh, depth);
229			XFillRectangle (dpy, tmp, gc, 0, 0, width, xpmh);
230	pcg	1.7
231			for ( /nil / ; x < w; x++, p += incr)
232			{
233			if (p >= xpmw)
234			p = 0;
235	root	1.28
236	pcg	1.7	/* copy one column from the original pixmap to the tmp pixmap */
237	root	1.31	XCopyArea (dpy, bgPixmap.pixmap, tmp, gc, (int)p, 0, 1, xpmh, (int)x, 0);
238	pcg	1.7	}
239
240			/*
241			* vertical scaling
242			*/
243	pcg	1.9	rxvt_pixmap_incr (&h, &y, &incr, &p, height, xpmh);
244	pcg	1.7
245			if (y > 0)
246	root	1.31	XFillRectangle (dpy, pixmap, gc, 0, 0, width, y);
247	root	1.20
248	pcg	1.7	if (h < height)
249	root	1.31	XFillRectangle (dpy, pixmap, gc, 0, (int)h, width, height - h + 1);
250	root	1.20
251	pcg	1.7	for ( /nil / ; y < h; y++, p += incr)
252			{
253			if (p >= xpmh)
254			p = 0;
255	root	1.20
256	pcg	1.7	/* copy one row from the tmp pixmap to the main pixmap */
257	root	1.31	XCopyArea (dpy, tmp, pixmap, gc, 0, (int)p, width, 1, 0, (int)y);
258	pcg	1.7	}
259	root	1.20
260	root	1.31	XFreePixmap (dpy, tmp);
261	pcg	1.7	}
262	pcg	1.1	}
263	root	1.14
264	root	1.31	XSetWindowBackgroundPixmap (dpy, vt, pixmap);
265	root	1.28
266	root	1.31	XFreeGC (dpy, gc);
267	ayin	1.36	#ifdef TRANSPARENT
268	pcg	1.7	am_transparent = 0;
269	ayin	1.36	#endif
270	pcg	1.1	}
271
272			/*
273			* Calculate tiling sizes and increments
274			* At start, p == 0, incr == xpmwidthheight
275			*/
276	pcg	1.6	static void
277	pcg	1.9	rxvt_pixmap_incr (unsigned int wh, unsigned int xy, float incr, float p, unsigned int widthheight, unsigned int xpmwidthheight)
278	pcg	1.1	{
279	pcg	1.7	unsigned int cwh, cxy;
280			float cincr, cp;
281	pcg	1.1
282	pcg	1.7	cp = 0;
283			cincr = (float)xpmwidthheight;
284			cxy = *xy;
285			cwh = *wh;
286			if (cwh == 1)
287			{ /* display one image, no horizontal/vertical scaling */
288			cincr = (float)widthheight;
289			if (xpmwidthheight <= widthheight)
290			{
291			cwh = xpmwidthheight;
292			cxy = (cxy * (widthheight - cwh)) / 100; /* beware! order */
293			cwh += cxy;
294			}
295			else
296			{
297			cxy = 0;
298			cwh = widthheight;
299			}
300	pcg	1.1	}
301	pcg	1.7	else if (cwh < 10)
302			{ /* fit WH images across/down screen */
303			cincr *= cwh;
304			cxy = 0;
305			cwh = widthheight;
306			}
307			else
308			{
309			cincr *= 100.0 / cwh;
310			if (cwh < 100)
311			{ /* contract */
312			float pos;
313
314			cwh = (cwh * widthheight) / 100;
315			pos = (float)cxy / 100 * widthheight - (cwh / 2);
316
317			cxy = (widthheight - cwh);
318			if (pos <= 0)
319			cxy = 0;
320			else if (pos < cxy)
321			cxy = (int) pos;
322			cwh += cxy;
323			}
324			else
325			{ /* expand */
326			if (cxy > 0)
327			{ /* position */
328			float pos;
329
330			pos = (float)cxy / 100 * xpmwidthheight - (cincr / 2);
331			cp = xpmwidthheight - cincr;
332			if (pos <= 0)
333			cp = 0;
334			else if (pos < cp)
335			cp = pos;
336			}
337			cxy = 0;
338			cwh = widthheight;
339			}
340			}
341			cincr /= widthheight;
342			*wh = cwh;
343			*xy = cxy;
344			*incr = cincr;
345			*p = cp;
346	pcg	1.1	}
347
348			Pixmap
349	pcg	1.5	rxvt_term::set_bgPixmap (const char *file)
350	pcg	1.1	{
351	root	1.21	char *f;
352	pcg	1.1
353	pcg	1.9	assert (file != NULL);
354	pcg	1.1
355	pcg	1.7	if (bgPixmap.pixmap != None)
356			{
357	root	1.31	XFreePixmap (dpy, bgPixmap.pixmap);
358	pcg	1.7	bgPixmap.pixmap = None;
359	pcg	1.1	}
360	root	1.19
361	root	1.31	XSetWindowBackground (dpy, vt, pix_colors[Color_bg]);
362	pcg	1.1
363	pcg	1.7	if (*file != '\0')
364			{
365			/* XWindowAttributes attr; */
366
367			/*
368			* we already have the required attributes
369			*/
370	root	1.31	/* XGetWindowAttributes (dpy, vt, &attr); */
371	pcg	1.7
372			xpmAttr.closeness = 30000;
373	root	1.29	xpmAttr.colormap = cmap;
374			xpmAttr.visual = visual;
375			xpmAttr.depth = depth;
376			xpmAttr.valuemask = (XpmCloseness \| XpmColormap \| XpmVisual
377			\| XpmDepth \| XpmSize \| XpmReturnPixels);
378	pcg	1.7
379			/* search environment variables here too */
380	pcg	1.9	f = (char *)rxvt_File_find (file, ".xpm", rs[Rs_path]);
381	pcg	1.7	if (f == NULL
382	root	1.31	\|\| XpmReadFileToPixmap (dpy, display->root, f,
383	root	1.29	&bgPixmap.pixmap, NULL,
384			&xpmAttr))
385	pcg	1.7	{
386	pcg	1.10	char *p;
387	pcg	1.7
388			/* semi-colon delimited */
389	root	1.17	if ((p = strchr (file, ';')) == NULL)
390			p = strchr (file, '\0');
391	pcg	1.7
392	root	1.19	rxvt_warn ("couldn't load XPM file \"%.*s\", ignoring.\n", (p - file), file);
393	pcg	1.7	}
394	pcg	1.10
395	pcg	1.9	free (f);
396	pcg	1.1	}
397	pcg	1.10
398	pcg	1.7	resize_pixmap ();
399			return bgPixmap.pixmap;
400	pcg	1.1	}
401
402			#endif /* XPM_BACKGROUND */