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;
  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 (xdisp, pixmap);

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

      if (!OPTION (Opt_transparent) || !am_transparent)
        XSetWindowBackground (xdisp, vt, pix_colors[Color_bg]);

      return;
    }

  gcvalue.foreground = pix_colors[Color_bg];
  gc = XCreateGC (xdisp, 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 (xdisp, vt, xpmw, xpmh, depth);

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

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

          tmp = XCreatePixmap (xdisp, vt, width, xpmh, depth);
          XFillRectangle (xdisp, 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 (xdisp, 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 (xdisp, pixmap, gc, 0, 0, width, y);

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

          XFreePixmap (xdisp, tmp);
        }
    }

  XSetWindowBackgroundPixmap (xdisp, vt, pixmap);

  if (pixmap != None)
    {
      XFreePixmap (xdisp, pixmap);
      pixmap = None;
    }

  XFreeGC (xdisp, gc);
  am_transparent = 0;
}

/*
 * 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 (display->display, bgPixmap.pixmap);
      bgPixmap.pixmap = None;
    }

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

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

      /*
       * we already have the required attributes
       */
      /*      XGetWindowAttributes (display->display, 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 (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:	1.29
Committed:	Wed Jan 25 21:03:04 2006 UTC (18 years, 4 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.28:	+26 -30 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	root	1.28	int flags, changed = 0;
56			int x = 0, y = 0;
57			unsigned int w = 0, h = 0;
58			unsigned int n;
59			char *p;
60			bgPixmap_t *bgpixmap = & (bgPixmap);
61	pcg	1.1
62	root	1.28	#define MAXLEN_GEOM sizeof("[10000x10000+10000+10000]")
63	pcg	1.1
64	pcg	1.7	if (geom == NULL)
65			return 0;
66	root	1.28
67			char str[MAXLEN_GEOM];
68
69	root	1.17	if (!strcmp (geom, "?"))
70	pcg	1.7	{
71	pcg	1.9	sprintf (str, "[%dx%d+%d+%d]", /* can't presume snprintf () ! */
72	root	1.28	min (bgpixmap->w, 32767), min (bgpixmap->h, 32767),
73			min (bgpixmap->x, 32767), min (bgpixmap->y, 32767));
74	pcg	1.11	process_xterm_seq (XTerm_title, str, CHAR_ST);
75	pcg	1.7	return 0;
76	pcg	1.1	}
77
78	root	1.17	if ((p = strchr (geom, ';')) == NULL)
79			p = strchr (geom, '\0');
80	root	1.28
81	pcg	1.7	n = (p - geom);
82			if (n <= MAXLEN_GEOM)
83			{
84	root	1.17	strncpy (str, geom, n);
85	pcg	1.7	str[n] = '\0';
86
87	pcg	1.9	flags = XParseGeometry (str, &x, &y, &w, &h);
88	root	1.28
89	pcg	1.7	if (!flags)
90			{
91			flags \|= WidthValue;
92			w = 0;
93			} /* default is tile */
94	root	1.28
95	pcg	1.7	if (flags & WidthValue)
96			{
97	root	1.28	if (!(flags & XValue))
98	pcg	1.7	x = 50;
99	root	1.28
100			if (!(flags & HeightValue))
101	pcg	1.7	h = w;
102	root	1.28
103	pcg	1.7	if (w && !h)
104			{
105			w = (bgpixmap->w * w) / 100;
106			h = bgpixmap->h;
107			}
108			else if (h && !w)
109			{
110			w = bgpixmap->w;
111			h = (bgpixmap->h * h) / 100;
112			}
113	root	1.28
114			min_it (w, 32767);
115			min_it (h, 32767);
116
117	pcg	1.7	if (bgpixmap->w != (short)w)
118			{
119			bgpixmap->w = (short)w;
120			changed++;
121			}
122	root	1.28
123	pcg	1.7	if (bgpixmap->h != (short)h)
124			{
125			bgpixmap->h = (short)h;
126			changed++;
127			}
128			}
129	root	1.28
130			if (!(flags & YValue))
131	pcg	1.7	{
132			if (flags & XNegative)
133			flags \|= YNegative;
134	root	1.28
135	pcg	1.7	y = x;
136			}
137
138	root	1.28	if (!(flags & WidthValue) && geom[0] != '=')
139	pcg	1.7	{
140			x += bgpixmap->x;
141			y += bgpixmap->y;
142			}
143	root	1.28
144			if (xpmAttr.width && xpmAttr.height)
145	pcg	1.7	{
146	root	1.28	x = MOD(x, xpmAttr.width);
147			y = MOD(y, xpmAttr.height);
148			}
149
150	pcg	1.7	if (bgpixmap->x != x)
151			{
152			bgpixmap->x = x;
153			changed++;
154			}
155	root	1.28
156	pcg	1.7	if (bgpixmap->y != y)
157			{
158			bgpixmap->y = y;
159			changed++;
160			}
161	pcg	1.1	}
162	root	1.28
163	pcg	1.7	return changed;
164	pcg	1.1	}
165
166			void
167	pcg	1.5	rxvt_term::resize_pixmap ()
168	pcg	1.1	{
169	root	1.27	XGCValues gcvalue;
170			GC gc;
171	pcg	1.7
172	root	1.24	if (pixmap != None)
173	root	1.29	XFreePixmap (xdisp, pixmap);
174	pcg	1.7
175			if (bgPixmap.pixmap == None)
176			{ /* So be it: I'm not using pixmaps */
177	root	1.24	pixmap = None;
178	root	1.20
179	root	1.26	if (!OPTION (Opt_transparent) \|\| !am_transparent)
180	root	1.29	XSetWindowBackground (xdisp, vt, pix_colors[Color_bg]);
181	root	1.20
182	pcg	1.7	return;
183	pcg	1.1	}
184
185	root	1.17	gcvalue.foreground = pix_colors[Color_bg];
186	root	1.29	gc = XCreateGC (xdisp, vt, GCForeground, &gcvalue);
187	pcg	1.1
188	pcg	1.7	if (bgPixmap.pixmap != None)
189			{ /* we have a specified pixmap */
190	root	1.28	unsigned int w = bgPixmap.w, h = bgPixmap.h,
191			x = bgPixmap.x, y = bgPixmap.y;
192			unsigned int xpmh = xpmAttr.height,
193			xpmw = xpmAttr.width;
194	pcg	1.7
195			/*
196			* don't zoom pixmap too much nor expand really small pixmaps
197			*/
198	root	1.28	if (w > 32767 \|\| h > 32767)
199	pcg	1.7	w = 1;
200			else if (width > (10 * xpmw)
201			\|\| height > (10 * xpmh))
202			w = 0; /* tile */
203
204	root	1.28	if (!w)
205	pcg	1.7	{
206			/* basic X tiling - let the X server do it */
207	root	1.29	pixmap = XCreatePixmap (xdisp, vt, xpmw, xpmh, depth);
208	root	1.28
209	root	1.29	XCopyArea (xdisp, bgPixmap.pixmap, pixmap, gc, x, y, xpmw - x, xpmh - y, 0, 0);
210			XCopyArea (xdisp, bgPixmap.pixmap, pixmap, gc, x, 0, xpmw - x, y, 0, xpmh - y);
211			XCopyArea (xdisp, bgPixmap.pixmap, pixmap, gc, 0, y, x, xpmh - y, xpmw - x, 0);
212			XCopyArea (xdisp, bgPixmap.pixmap, pixmap, gc, 0, 0, x, y, xpmw - x, xpmh - y);
213	pcg	1.7	}
214			else
215			{
216	root	1.27	float incr, p;
217			Pixmap tmp;
218	pcg	1.7
219	root	1.29	pixmap = XCreatePixmap (xdisp, vt, width, height, depth);
220	pcg	1.7	/*
221			* horizontal scaling
222			*/
223	pcg	1.9	rxvt_pixmap_incr (&w, &x, &incr, &p, width, xpmw);
224	pcg	1.7
225	root	1.29	tmp = XCreatePixmap (xdisp, vt, width, xpmh, depth);
226			XFillRectangle (xdisp, tmp, gc, 0, 0, width, xpmh);
227	pcg	1.7
228			for ( /nil / ; x < w; x++, p += incr)
229			{
230			if (p >= xpmw)
231			p = 0;
232	root	1.28
233	pcg	1.7	/* copy one column from the original pixmap to the tmp pixmap */
234	root	1.29	XCopyArea (xdisp, bgPixmap.pixmap, tmp, gc, (int)p, 0, 1, xpmh, (int)x, 0);
235	pcg	1.7	}
236
237			/*
238			* vertical scaling
239			*/
240	pcg	1.9	rxvt_pixmap_incr (&h, &y, &incr, &p, height, xpmh);
241	pcg	1.7
242			if (y > 0)
243	root	1.29	XFillRectangle (xdisp, pixmap, gc, 0, 0, width, y);
244	root	1.20
245	pcg	1.7	if (h < height)
246	root	1.29	XFillRectangle (xdisp, pixmap, gc, 0, (int)h, width, height - h + 1);
247	root	1.20
248	pcg	1.7	for ( /nil / ; y < h; y++, p += incr)
249			{
250			if (p >= xpmh)
251			p = 0;
252	root	1.20
253	pcg	1.7	/* copy one row from the tmp pixmap to the main pixmap */
254	root	1.29	XCopyArea (xdisp, tmp, pixmap, gc, 0, (int)p, width, 1, 0, (int)y);
255	pcg	1.7	}
256	root	1.20
257	root	1.29	XFreePixmap (xdisp, tmp);
258	pcg	1.7	}
259	pcg	1.1	}
260	root	1.14
261	root	1.29	XSetWindowBackgroundPixmap (xdisp, vt, pixmap);
262	root	1.28
263			if (pixmap != None)
264			{
265	root	1.29	XFreePixmap (xdisp, pixmap);
266	root	1.28	pixmap = None;
267			}
268
269	root	1.29	XFreeGC (xdisp, gc);
270	pcg	1.7	am_transparent = 0;
271	pcg	1.1	}
272
273			/*
274			* Calculate tiling sizes and increments
275			* At start, p == 0, incr == xpmwidthheight
276			*/
277	pcg	1.6	static void
278	pcg	1.9	rxvt_pixmap_incr (unsigned int wh, unsigned int xy, float incr, float p, unsigned int widthheight, unsigned int xpmwidthheight)
279	pcg	1.1	{
280	pcg	1.7	unsigned int cwh, cxy;
281			float cincr, cp;
282	pcg	1.1
283	pcg	1.7	cp = 0;
284			cincr = (float)xpmwidthheight;
285			cxy = *xy;
286			cwh = *wh;
287			if (cwh == 1)
288			{ /* display one image, no horizontal/vertical scaling */
289			cincr = (float)widthheight;
290			if (xpmwidthheight <= widthheight)
291			{
292			cwh = xpmwidthheight;
293			cxy = (cxy * (widthheight - cwh)) / 100; /* beware! order */
294			cwh += cxy;
295			}
296			else
297			{
298			cxy = 0;
299			cwh = widthheight;
300			}
301	pcg	1.1	}
302	pcg	1.7	else if (cwh < 10)
303			{ /* fit WH images across/down screen */
304			cincr *= cwh;
305			cxy = 0;
306			cwh = widthheight;
307			}
308			else
309			{
310			cincr *= 100.0 / cwh;
311			if (cwh < 100)
312			{ /* contract */
313			float pos;
314
315			cwh = (cwh * widthheight) / 100;
316			pos = (float)cxy / 100 * widthheight - (cwh / 2);
317
318			cxy = (widthheight - cwh);
319			if (pos <= 0)
320			cxy = 0;
321			else if (pos < cxy)
322			cxy = (int) pos;
323			cwh += cxy;
324			}
325			else
326			{ /* expand */
327			if (cxy > 0)
328			{ /* position */
329			float pos;
330
331			pos = (float)cxy / 100 * xpmwidthheight - (cincr / 2);
332			cp = xpmwidthheight - cincr;
333			if (pos <= 0)
334			cp = 0;
335			else if (pos < cp)
336			cp = pos;
337			}
338			cxy = 0;
339			cwh = widthheight;
340			}
341			}
342			cincr /= widthheight;
343			*wh = cwh;
344			*xy = cxy;
345			*incr = cincr;
346			*p = cp;
347	pcg	1.1	}
348
349			Pixmap
350	pcg	1.5	rxvt_term::set_bgPixmap (const char *file)
351	pcg	1.1	{
352	root	1.21	char *f;
353	pcg	1.1
354	pcg	1.9	assert (file != NULL);
355	pcg	1.1
356	pcg	1.7	if (bgPixmap.pixmap != None)
357			{
358	pcg	1.9	XFreePixmap (display->display, bgPixmap.pixmap);
359	pcg	1.7	bgPixmap.pixmap = None;
360	pcg	1.1	}
361	root	1.19
362	root	1.24	XSetWindowBackground (display->display, vt, pix_colors[Color_bg]);
363	pcg	1.1
364	pcg	1.7	if (*file != '\0')
365			{
366			/* XWindowAttributes attr; */
367
368			/*
369			* we already have the required attributes
370			*/
371	root	1.24	/* XGetWindowAttributes (display->display, vt, &attr); */
372	pcg	1.7
373			xpmAttr.closeness = 30000;
374	root	1.29	xpmAttr.colormap = cmap;
375			xpmAttr.visual = visual;
376			xpmAttr.depth = depth;
377			xpmAttr.valuemask = (XpmCloseness \| XpmColormap \| XpmVisual
378			\| XpmDepth \| XpmSize \| XpmReturnPixels);
379	pcg	1.7
380			/* search environment variables here too */
381	pcg	1.9	f = (char *)rxvt_File_find (file, ".xpm", rs[Rs_path]);
382	pcg	1.7	if (f == NULL
383	pcg	1.9	\|\| XpmReadFileToPixmap (display->display, display->root, f,
384	root	1.29	&bgPixmap.pixmap, NULL,
385			&xpmAttr))
386	pcg	1.7	{
387	pcg	1.10	char *p;
388	pcg	1.7
389			/* semi-colon delimited */
390	root	1.17	if ((p = strchr (file, ';')) == NULL)
391			p = strchr (file, '\0');
392	pcg	1.7
393	root	1.19	rxvt_warn ("couldn't load XPM file \"%.*s\", ignoring.\n", (p - file), file);
394	pcg	1.7	}
395	pcg	1.10
396	pcg	1.9	free (f);
397	pcg	1.1	}
398	pcg	1.10
399	pcg	1.7	resize_pixmap ();
400			return bgPixmap.pixmap;
401	pcg	1.1	}
402
403			#endif /* XPM_BACKGROUND */