rxvt-unicode/src/xpm.C

/*--------------------------------*-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>
 *
 * 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, *str;
  bgPixmap_t     *bgpixmap = & (bgPixmap);

#define MAXLEN_GEOM             sizeof("[1000x1000+1000+1000]")

  if (geom == NULL)
    return 0;
  str = (char *)rxvt_malloc (MAXLEN_GEOM + 1);
  if (!strcmp (geom, "?"))
    {
      sprintf (str, "[%dx%d+%d+%d]",    /* can't presume snprintf () ! */
              min (bgpixmap->w, 9999), min (bgpixmap->h, 9999),
              min (bgpixmap->x, 9999), min (bgpixmap->y, 9999));
      process_xterm_seq (XTerm_title, str, CHAR_ST);
      free (str);
      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;
            }
          if (w > 1000)
            w = 1000;
          if (h > 1000)
            h = 1000;
          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;
        }
      else
        {
          if (flags & XNegative)
            x += 100;
          if (flags & YNegative)
            y += 100;
        }
      MIN_IT (x, 100);
      MIN_IT (y, 100);
      MAX_IT (x, 0);
      MAX_IT (y, 0);
      if (bgpixmap->x != x)
        {
          bgpixmap->x = x;
          changed++;
        }
      if (bgpixmap->y != y)
        {
          bgpixmap->y = y;
          changed++;
        }
    }
  free (str);
  return changed;
}

void
rxvt_term::resize_pixmap ()
{
  XGCValues       gcvalue;
  GC              gc;
  unsigned int    width = TermWin_TotalWidth ();
  unsigned int    height = TermWin_TotalHeight ();
  dDisp;

  if (TermWin.pixmap != None)
    XFreePixmap (disp, TermWin.pixmap);

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

      if (!(options & Opt_transparent) || !am_transparent)
        XSetWindowBackground (disp, TermWin.vt,
                              pix_colors[Color_bg]);

      return;
    }

  gcvalue.foreground = pix_colors[Color_bg];
  gc = XCreateGC (disp, TermWin.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 > 1000 || h > 1000)
        w = 1;
      else if (width > (10 * xpmw)
               || height > (10 * xpmh))
        w = 0;          /* tile */

      if (w == 0)
        {
          /* basic X tiling - let the X server do it */
          TermWin.pixmap = XCreatePixmap (disp, TermWin.vt,
                                         xpmw, xpmh,
                                         (unsigned int)display->depth);
          XCopyArea (disp, bgPixmap.pixmap, TermWin.pixmap, gc,
                    0, 0, xpmw, xpmh, 0, 0);
        }
      else
        {
          float           incr, p;
          Pixmap          tmp;

          TermWin.pixmap = XCreatePixmap (disp, TermWin.vt,
                                         width, height,
                                         (unsigned int)display->depth);
          /*
           * horizontal scaling
           */
          rxvt_pixmap_incr (&w, &x, &incr, &p, width, xpmw);

          tmp = XCreatePixmap (disp, TermWin.vt,
                              width, xpmh, (unsigned int)display->depth);
          XFillRectangle (disp, 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 (disp, 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 (disp, TermWin.pixmap, gc, 0, 0, width, y);

          if (h < height)
            XFillRectangle (disp, TermWin.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 (disp, tmp, TermWin.pixmap, gc,
                        0, (int)p, width, 1, 0, (int)y);
            }

          XFreePixmap (disp, tmp);
        }
    }

  XSetWindowBackgroundPixmap (disp, TermWin.vt, TermWin.pixmap);
  XFreeGC (disp, gc);
  am_transparent = 0;
}

/*
 * Calculate tiling sizes and increments
 * At start, p == 0, incr == xpmwidthheight
 */
/* INTPROTO */
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 (display->display, bgPixmap.pixmap);
      bgPixmap.pixmap = None;
    }

  XSetWindowBackground (display->display, TermWin.vt, pix_colors[Color_bg]);

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

      /*
       * we already have the required attributes
       */
      /*      XGetWindowAttributes (display->display, TermWin.vt, &attr); */

      xpmAttr.closeness = 30000;
      xpmAttr.colormap = display->cmap;
      xpmAttr.visual = display->visual;
      xpmAttr.depth = display->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 (display->display, 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:	1.22
Committed:	Wed Feb 16 20:32:05 2005 UTC (19 years, 3 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.21:	+2 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.1	/---------------------------------C----------------------------------
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			*
10			* This program is free software; you can redistribute it and/or modify
11			* it under the terms of the GNU General Public License as published by
12			* the Free Software Foundation; either version 2 of the License, or
13			* (at your option) any later version.
14			*
15			* This program is distributed in the hope that it will be useful,
16			* but WITHOUT ANY WARRANTY; without even the implied warranty of
17			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18			* GNU General Public License for more details.
19			*
20			* You should have received a copy of the GNU General Public License
21			* along with this program; if not, write to the Free Software
22			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23			---------------------------------------------------------------------/
24
25			#include "../config.h" /* NECESSARY */
26			#include "rxvt.h" /* NECESSARY */
27
28			#ifdef XPM_BACKGROUND
29
30	root	1.22	static void rxvt_pixmap_incr (unsigned int wh, unsigned int xy, float incr, float p, unsigned int widthheight, unsigned int xpmwidthheight);
31
32	pcg	1.1	/*
33			* These GEOM strings indicate absolute size/position:
34			* @ `WxH+X+Y'
35			* @ `WxH+X' -> Y = X
36			* @ `WxH' -> Y = X = 50
37			* @ `W+X+Y' -> H = W
38			* @ `W+X' -> H = W, Y = X
39			* @ `W' -> H = W, X = Y = 50
40			* @ `0xH' -> H *= H/100, X = Y = 50 (W unchanged)
41			* @ `Wx0' -> W *= W/100, X = Y = 50 (H unchanged)
42			* @ `=+X+Y' -> (H, W unchanged)
43			* @ `=+X' -> Y = X (H, W unchanged)
44			*
45			* These GEOM strings adjust position relative to current position:
46			* @ `+X+Y'
47			* @ `+X' -> Y = X
48			*
49			* And this GEOM string is for querying current scale/position:
50			* @ `?'
51			*/
52			int
53	pcg	1.5	rxvt_term::scale_pixmap (const char *geom)
54	pcg	1.1	{
55	pcg	1.7	int flags, changed = 0;
56			int x = 0, y = 0;
57			unsigned int w = 0, h = 0;
58			unsigned int n;
59			char p, str;
60	pcg	1.9	bgPixmap_t *bgpixmap = & (bgPixmap);
61	pcg	1.1
62			#define MAXLEN_GEOM sizeof("[1000x1000+1000+1000]")
63
64	pcg	1.7	if (geom == NULL)
65			return 0;
66			str = (char *)rxvt_malloc (MAXLEN_GEOM + 1);
67	root	1.17	if (!strcmp (geom, "?"))
68	pcg	1.7	{
69	pcg	1.9	sprintf (str, "[%dx%d+%d+%d]", /* can't presume snprintf () ! */
70			min (bgpixmap->w, 9999), min (bgpixmap->h, 9999),
71			min (bgpixmap->x, 9999), min (bgpixmap->y, 9999));
72	pcg	1.11	process_xterm_seq (XTerm_title, str, CHAR_ST);
73	pcg	1.9	free (str);
74	pcg	1.7	return 0;
75	pcg	1.1	}
76
77	root	1.17	if ((p = strchr (geom, ';')) == NULL)
78			p = strchr (geom, '\0');
79	pcg	1.7	n = (p - geom);
80			if (n <= MAXLEN_GEOM)
81			{
82	root	1.17	strncpy (str, geom, n);
83	pcg	1.7	str[n] = '\0';
84
85	pcg	1.9	flags = XParseGeometry (str, &x, &y, &w, &h);
86	pcg	1.7	if (!flags)
87			{
88			flags \|= WidthValue;
89			w = 0;
90			} /* default is tile */
91			if (flags & WidthValue)
92			{
93	pcg	1.9	if (! (flags & XValue))
94	pcg	1.7	x = 50;
95	pcg	1.9	if (! (flags & HeightValue))
96	pcg	1.7	h = w;
97			if (w && !h)
98			{
99			w = (bgpixmap->w * w) / 100;
100			h = bgpixmap->h;
101			}
102			else if (h && !w)
103			{
104			w = bgpixmap->w;
105			h = (bgpixmap->h * h) / 100;
106			}
107			if (w > 1000)
108			w = 1000;
109			if (h > 1000)
110			h = 1000;
111			if (bgpixmap->w != (short)w)
112			{
113			bgpixmap->w = (short)w;
114			changed++;
115			}
116			if (bgpixmap->h != (short)h)
117			{
118			bgpixmap->h = (short)h;
119			changed++;
120			}
121			}
122	pcg	1.9	if (! (flags & YValue))
123	pcg	1.7	{
124			if (flags & XNegative)
125			flags \|= YNegative;
126			y = x;
127			}
128
129	pcg	1.9	if (! (flags & WidthValue) && geom[0] != '=')
130	pcg	1.7	{
131			x += bgpixmap->x;
132			y += bgpixmap->y;
133			}
134			else
135			{
136			if (flags & XNegative)
137			x += 100;
138			if (flags & YNegative)
139			y += 100;
140			}
141	pcg	1.9	MIN_IT (x, 100);
142			MIN_IT (y, 100);
143			MAX_IT (x, 0);
144			MAX_IT (y, 0);
145	pcg	1.7	if (bgpixmap->x != x)
146			{
147			bgpixmap->x = x;
148			changed++;
149			}
150			if (bgpixmap->y != y)
151			{
152			bgpixmap->y = y;
153			changed++;
154			}
155	pcg	1.1	}
156	pcg	1.9	free (str);
157	pcg	1.7	return changed;
158	pcg	1.1	}
159
160			void
161	pcg	1.5	rxvt_term::resize_pixmap ()
162	pcg	1.1	{
163	pcg	1.7	XGCValues gcvalue;
164			GC gc;
165	pcg	1.9	unsigned int width = TermWin_TotalWidth ();
166			unsigned int height = TermWin_TotalHeight ();
167	root	1.21	dDisp;
168	pcg	1.7
169			if (TermWin.pixmap != None)
170	root	1.21	XFreePixmap (disp, TermWin.pixmap);
171	pcg	1.7
172			if (bgPixmap.pixmap == None)
173			{ /* So be it: I'm not using pixmaps */
174			TermWin.pixmap = None;
175	root	1.20
176			if (!(options & Opt_transparent) \|\| !am_transparent)
177	root	1.21	XSetWindowBackground (disp, TermWin.vt,
178	root	1.20	pix_colors[Color_bg]);
179
180	pcg	1.7	return;
181	pcg	1.1	}
182
183	root	1.17	gcvalue.foreground = pix_colors[Color_bg];
184	root	1.21	gc = XCreateGC (disp, TermWin.vt, GCForeground, &gcvalue);
185	pcg	1.1
186	pcg	1.7	if (bgPixmap.pixmap != None)
187			{ /* we have a specified pixmap */
188			unsigned int w = bgPixmap.w, h = bgPixmap.h,
189	root	1.20	x = bgPixmap.x, y = bgPixmap.y;
190	pcg	1.7	unsigned int xpmh = xpmAttr.height,
191	root	1.20	xpmw = xpmAttr.width;
192	pcg	1.7
193			/*
194			* don't zoom pixmap too much nor expand really small pixmaps
195			*/
196			if (w > 1000 \|\| h > 1000)
197			w = 1;
198			else if (width > (10 * xpmw)
199			\|\| height > (10 * xpmh))
200			w = 0; /* tile */
201
202			if (w == 0)
203			{
204			/* basic X tiling - let the X server do it */
205	root	1.21	TermWin.pixmap = XCreatePixmap (disp, TermWin.vt,
206	pcg	1.7	xpmw, xpmh,
207	root	1.14	(unsigned int)display->depth);
208	root	1.21	XCopyArea (disp, bgPixmap.pixmap, TermWin.pixmap, gc,
209	pcg	1.7	0, 0, xpmw, xpmh, 0, 0);
210			}
211			else
212			{
213			float incr, p;
214			Pixmap tmp;
215
216	root	1.21	TermWin.pixmap = XCreatePixmap (disp, TermWin.vt,
217	pcg	1.7	width, height,
218	root	1.14	(unsigned int)display->depth);
219	pcg	1.7	/*
220			* horizontal scaling
221			*/
222	pcg	1.9	rxvt_pixmap_incr (&w, &x, &incr, &p, width, xpmw);
223	pcg	1.7
224	root	1.21	tmp = XCreatePixmap (disp, TermWin.vt,
225	root	1.14	width, xpmh, (unsigned int)display->depth);
226	root	1.21	XFillRectangle (disp, tmp, gc, 0, 0, width,
227	pcg	1.7	xpmh);
228
229			for ( /nil / ; x < w; x++, p += incr)
230			{
231			if (p >= xpmw)
232			p = 0;
233			/* copy one column from the original pixmap to the tmp pixmap */
234	root	1.21	XCopyArea (disp, bgPixmap.pixmap, tmp, gc,
235	pcg	1.7	(int)p, 0, 1, xpmh, (int)x, 0);
236			}
237
238			/*
239			* vertical scaling
240			*/
241	pcg	1.9	rxvt_pixmap_incr (&h, &y, &incr, &p, height, xpmh);
242	pcg	1.7
243			if (y > 0)
244	root	1.21	XFillRectangle (disp, TermWin.pixmap, gc, 0, 0, width, y);
245	root	1.20
246	pcg	1.7	if (h < height)
247	root	1.21	XFillRectangle (disp, TermWin.pixmap, gc, 0, (int)h, width, height - h + 1);
248	root	1.20
249	pcg	1.7	for ( /nil / ; y < h; y++, p += incr)
250			{
251			if (p >= xpmh)
252			p = 0;
253	root	1.20
254	pcg	1.7	/* copy one row from the tmp pixmap to the main pixmap */
255	root	1.21	XCopyArea (disp, tmp, TermWin.pixmap, gc,
256	pcg	1.7	0, (int)p, width, 1, 0, (int)y);
257			}
258	root	1.20
259	root	1.21	XFreePixmap (disp, tmp);
260	pcg	1.7	}
261	pcg	1.1	}
262	root	1.14
263	root	1.21	XSetWindowBackgroundPixmap (disp, TermWin.vt, TermWin.pixmap);
264			XFreeGC (disp, gc);
265	pcg	1.7	am_transparent = 0;
266	pcg	1.1	}
267
268			/*
269			* Calculate tiling sizes and increments
270			* At start, p == 0, incr == xpmwidthheight
271			*/
272	pcg	1.6	/* INTPROTO */
273			static void
274	pcg	1.9	rxvt_pixmap_incr (unsigned int wh, unsigned int xy, float incr, float p, unsigned int widthheight, unsigned int xpmwidthheight)
275	pcg	1.1	{
276	pcg	1.7	unsigned int cwh, cxy;
277			float cincr, cp;
278	pcg	1.1
279	pcg	1.7	cp = 0;
280			cincr = (float)xpmwidthheight;
281			cxy = *xy;
282			cwh = *wh;
283			if (cwh == 1)
284			{ /* display one image, no horizontal/vertical scaling */
285			cincr = (float)widthheight;
286			if (xpmwidthheight <= widthheight)
287			{
288			cwh = xpmwidthheight;
289			cxy = (cxy * (widthheight - cwh)) / 100; /* beware! order */
290			cwh += cxy;
291			}
292			else
293			{
294			cxy = 0;
295			cwh = widthheight;
296			}
297	pcg	1.1	}
298	pcg	1.7	else if (cwh < 10)
299			{ /* fit WH images across/down screen */
300			cincr *= cwh;
301			cxy = 0;
302			cwh = widthheight;
303			}
304			else
305			{
306			cincr *= 100.0 / cwh;
307			if (cwh < 100)
308			{ /* contract */
309			float pos;
310
311			cwh = (cwh * widthheight) / 100;
312			pos = (float)cxy / 100 * widthheight - (cwh / 2);
313
314			cxy = (widthheight - cwh);
315			if (pos <= 0)
316			cxy = 0;
317			else if (pos < cxy)
318			cxy = (int) pos;
319			cwh += cxy;
320			}
321			else
322			{ /* expand */
323			if (cxy > 0)
324			{ /* position */
325			float pos;
326
327			pos = (float)cxy / 100 * xpmwidthheight - (cincr / 2);
328			cp = xpmwidthheight - cincr;
329			if (pos <= 0)
330			cp = 0;
331			else if (pos < cp)
332			cp = pos;
333			}
334			cxy = 0;
335			cwh = widthheight;
336			}
337			}
338			cincr /= widthheight;
339			*wh = cwh;
340			*xy = cxy;
341			*incr = cincr;
342			*p = cp;
343	pcg	1.1	}
344
345			Pixmap
346	pcg	1.5	rxvt_term::set_bgPixmap (const char *file)
347	pcg	1.1	{
348	root	1.21	char *f;
349	pcg	1.1
350	pcg	1.9	assert (file != NULL);
351	pcg	1.1
352	pcg	1.7	if (bgPixmap.pixmap != None)
353			{
354	pcg	1.9	XFreePixmap (display->display, bgPixmap.pixmap);
355	pcg	1.7	bgPixmap.pixmap = None;
356	pcg	1.1	}
357	root	1.19
358	root	1.17	XSetWindowBackground (display->display, TermWin.vt, pix_colors[Color_bg]);
359	pcg	1.1
360	pcg	1.7	if (*file != '\0')
361			{
362			/* XWindowAttributes attr; */
363
364			/*
365			* we already have the required attributes
366			*/
367	pcg	1.9	/* XGetWindowAttributes (display->display, TermWin.vt, &attr); */
368	pcg	1.7
369			xpmAttr.closeness = 30000;
370	root	1.14	xpmAttr.colormap = display->cmap;
371			xpmAttr.visual = display->visual;
372			xpmAttr.depth = display->depth;
373	pcg	1.7	xpmAttr.valuemask = (XpmCloseness \| XpmColormap \| XpmVisual \|
374			XpmDepth \| XpmSize \| XpmReturnPixels);
375
376			/* search environment variables here too */
377	pcg	1.9	f = (char *)rxvt_File_find (file, ".xpm", rs[Rs_path]);
378	pcg	1.7	if (f == NULL
379	pcg	1.9	\|\| XpmReadFileToPixmap (display->display, display->root, f,
380	pcg	1.7	&bgPixmap.pixmap, NULL,
381			&xpmAttr))
382			{
383	pcg	1.10	char *p;
384	pcg	1.7
385			/* semi-colon delimited */
386	root	1.17	if ((p = strchr (file, ';')) == NULL)
387			p = strchr (file, '\0');
388	pcg	1.7
389	root	1.19	rxvt_warn ("couldn't load XPM file \"%.*s\", ignoring.\n", (p - file), file);
390	pcg	1.7	}
391	pcg	1.10
392	pcg	1.9	free (f);
393	pcg	1.1	}
394	pcg	1.10
395	pcg	1.7	resize_pixmap ();
396			return bgPixmap.pixmap;
397	pcg	1.1	}
398
399			#endif /* XPM_BACKGROUND */