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 */
#include "xpm.intpro"           /* PROTOS for internal routines */

#ifdef XPM_BACKGROUND

/*
 * 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 ();

  if (TermWin.pixmap != None)
    XFreePixmap (display->display, TermWin.pixmap);

  if (bgPixmap.pixmap == None)
    { /* So be it: I'm not using pixmaps */
      TermWin.pixmap = None;
      if (! (options & Opt_transparent) || am_transparent == 0)
        XSetWindowBackground (display->display, TermWin.vt,
                             pix_colors[Color_bg]);
      return;
    }

  gcvalue.foreground = pix_colors[Color_bg];
  gc = XCreateGC (display->display, 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 (display->display, TermWin.vt,
                                         xpmw, xpmh,
                                         (unsigned int)display->depth);
          XCopyArea (display->display, bgPixmap.pixmap, TermWin.pixmap, gc,
                    0, 0, xpmw, xpmh, 0, 0);
        }
      else
        {
          float           incr, p;
          Pixmap          tmp;

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

          tmp = XCreatePixmap (display->display, TermWin.vt,
                              width, xpmh, (unsigned int)display->depth);
          XFillRectangle (display->display, 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 (display->display, 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 (display->display, TermWin.pixmap, gc, 0, 0, width,
                           y);
          if (h < height)
            XFillRectangle (display->display, 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 (display->display, tmp, TermWin.pixmap, gc,
                        0, (int)p, width, 1, 0, (int)y);
            }
          XFreePixmap (display->display, tmp);
        }
    }

  XSetWindowBackgroundPixmap (display->display, TermWin.vt, TermWin.pixmap);
  XFreeGC (display->display, gc);
  am_transparent = 0;

  XClearWindow (display->display, TermWin.vt);

  XSync (display->display, False);
}

/*
 * 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:	1.19
Committed:	Mon Aug 23 18:48:03 2004 UTC (19 years, 9 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-4_4, rel-4_6, rel-4_7, rel-4_2, rel-4_3, rel-3_8, rel-4_0, rel-4_1, rel-4_8
Changes since 1.17:	+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			#include "xpm.intpro" /* PROTOS for internal routines */
28
29			#ifdef XPM_BACKGROUND
30
31			/*
32			* These GEOM strings indicate absolute size/position:
33			* @ `WxH+X+Y'
34			* @ `WxH+X' -> Y = X
35			* @ `WxH' -> Y = X = 50
36			* @ `W+X+Y' -> H = W
37			* @ `W+X' -> H = W, Y = X
38			* @ `W' -> H = W, X = Y = 50
39			* @ `0xH' -> H *= H/100, X = Y = 50 (W unchanged)
40			* @ `Wx0' -> W *= W/100, X = Y = 50 (H unchanged)
41			* @ `=+X+Y' -> (H, W unchanged)
42			* @ `=+X' -> Y = X (H, W unchanged)
43			*
44			* These GEOM strings adjust position relative to current position:
45			* @ `+X+Y'
46			* @ `+X' -> Y = X
47			*
48			* And this GEOM string is for querying current scale/position:
49			* @ `?'
50			*/
51			int
52	pcg	1.5	rxvt_term::scale_pixmap (const char *geom)
53	pcg	1.1	{
54	pcg	1.7	int flags, changed = 0;
55			int x = 0, y = 0;
56			unsigned int w = 0, h = 0;
57			unsigned int n;
58			char p, str;
59	pcg	1.9	bgPixmap_t *bgpixmap = & (bgPixmap);
60	pcg	1.1
61			#define MAXLEN_GEOM sizeof("[1000x1000+1000+1000]")
62
63	pcg	1.7	if (geom == NULL)
64			return 0;
65			str = (char *)rxvt_malloc (MAXLEN_GEOM + 1);
66	root	1.17	if (!strcmp (geom, "?"))
67	pcg	1.7	{
68	pcg	1.9	sprintf (str, "[%dx%d+%d+%d]", /* can't presume snprintf () ! */
69			min (bgpixmap->w, 9999), min (bgpixmap->h, 9999),
70			min (bgpixmap->x, 9999), min (bgpixmap->y, 9999));
71	pcg	1.11	process_xterm_seq (XTerm_title, str, CHAR_ST);
72	pcg	1.9	free (str);
73	pcg	1.7	return 0;
74	pcg	1.1	}
75
76	root	1.17	if ((p = strchr (geom, ';')) == NULL)
77			p = strchr (geom, '\0');
78	pcg	1.7	n = (p - geom);
79			if (n <= MAXLEN_GEOM)
80			{
81	root	1.17	strncpy (str, geom, n);
82	pcg	1.7	str[n] = '\0';
83
84	pcg	1.9	flags = XParseGeometry (str, &x, &y, &w, &h);
85	pcg	1.7	if (!flags)
86			{
87			flags \|= WidthValue;
88			w = 0;
89			} /* default is tile */
90			if (flags & WidthValue)
91			{
92	pcg	1.9	if (! (flags & XValue))
93	pcg	1.7	x = 50;
94	pcg	1.9	if (! (flags & HeightValue))
95	pcg	1.7	h = w;
96			if (w && !h)
97			{
98			w = (bgpixmap->w * w) / 100;
99			h = bgpixmap->h;
100			}
101			else if (h && !w)
102			{
103			w = bgpixmap->w;
104			h = (bgpixmap->h * h) / 100;
105			}
106			if (w > 1000)
107			w = 1000;
108			if (h > 1000)
109			h = 1000;
110			if (bgpixmap->w != (short)w)
111			{
112			bgpixmap->w = (short)w;
113			changed++;
114			}
115			if (bgpixmap->h != (short)h)
116			{
117			bgpixmap->h = (short)h;
118			changed++;
119			}
120			}
121	pcg	1.9	if (! (flags & YValue))
122	pcg	1.7	{
123			if (flags & XNegative)
124			flags \|= YNegative;
125			y = x;
126			}
127
128	pcg	1.9	if (! (flags & WidthValue) && geom[0] != '=')
129	pcg	1.7	{
130			x += bgpixmap->x;
131			y += bgpixmap->y;
132			}
133			else
134			{
135			if (flags & XNegative)
136			x += 100;
137			if (flags & YNegative)
138			y += 100;
139			}
140	pcg	1.9	MIN_IT (x, 100);
141			MIN_IT (y, 100);
142			MAX_IT (x, 0);
143			MAX_IT (y, 0);
144	pcg	1.7	if (bgpixmap->x != x)
145			{
146			bgpixmap->x = x;
147			changed++;
148			}
149			if (bgpixmap->y != y)
150			{
151			bgpixmap->y = y;
152			changed++;
153			}
154	pcg	1.1	}
155	pcg	1.9	free (str);
156	pcg	1.7	return changed;
157	pcg	1.1	}
158
159			void
160	pcg	1.5	rxvt_term::resize_pixmap ()
161	pcg	1.1	{
162	pcg	1.7	XGCValues gcvalue;
163			GC gc;
164	pcg	1.9	unsigned int width = TermWin_TotalWidth ();
165			unsigned int height = TermWin_TotalHeight ();
166	pcg	1.7
167			if (TermWin.pixmap != None)
168	pcg	1.9	XFreePixmap (display->display, TermWin.pixmap);
169	pcg	1.7
170			if (bgPixmap.pixmap == None)
171			{ /* So be it: I'm not using pixmaps */
172			TermWin.pixmap = None;
173	root	1.17	if (! (options & Opt_transparent) \|\| am_transparent == 0)
174	pcg	1.9	XSetWindowBackground (display->display, TermWin.vt,
175	root	1.17	pix_colors[Color_bg]);
176	pcg	1.7	return;
177	pcg	1.1	}
178
179	root	1.17	gcvalue.foreground = pix_colors[Color_bg];
180	pcg	1.9	gc = XCreateGC (display->display, TermWin.vt, GCForeground, &gcvalue);
181	pcg	1.1
182	pcg	1.7	if (bgPixmap.pixmap != None)
183			{ /* we have a specified pixmap */
184			unsigned int w = bgPixmap.w, h = bgPixmap.h,
185			x = bgPixmap.x, y = bgPixmap.y;
186			unsigned int xpmh = xpmAttr.height,
187			xpmw = xpmAttr.width;
188
189			/*
190			* don't zoom pixmap too much nor expand really small pixmaps
191			*/
192			if (w > 1000 \|\| h > 1000)
193			w = 1;
194			else if (width > (10 * xpmw)
195			\|\| height > (10 * xpmh))
196			w = 0; /* tile */
197
198			if (w == 0)
199			{
200			/* basic X tiling - let the X server do it */
201	pcg	1.9	TermWin.pixmap = XCreatePixmap (display->display, TermWin.vt,
202	pcg	1.7	xpmw, xpmh,
203	root	1.14	(unsigned int)display->depth);
204	pcg	1.9	XCopyArea (display->display, bgPixmap.pixmap, TermWin.pixmap, gc,
205	pcg	1.7	0, 0, xpmw, xpmh, 0, 0);
206			}
207			else
208			{
209			float incr, p;
210			Pixmap tmp;
211
212	pcg	1.9	TermWin.pixmap = XCreatePixmap (display->display, TermWin.vt,
213	pcg	1.7	width, height,
214	root	1.14	(unsigned int)display->depth);
215	pcg	1.7	/*
216			* horizontal scaling
217			*/
218	pcg	1.9	rxvt_pixmap_incr (&w, &x, &incr, &p, width, xpmw);
219	pcg	1.7
220	pcg	1.9	tmp = XCreatePixmap (display->display, TermWin.vt,
221	root	1.14	width, xpmh, (unsigned int)display->depth);
222	pcg	1.9	XFillRectangle (display->display, tmp, gc, 0, 0, width,
223	pcg	1.7	xpmh);
224
225			for ( /nil / ; x < w; x++, p += incr)
226			{
227			if (p >= xpmw)
228			p = 0;
229			/* copy one column from the original pixmap to the tmp pixmap */
230	pcg	1.9	XCopyArea (display->display, bgPixmap.pixmap, tmp, gc,
231	pcg	1.7	(int)p, 0, 1, xpmh, (int)x, 0);
232			}
233
234			/*
235			* vertical scaling
236			*/
237	pcg	1.9	rxvt_pixmap_incr (&h, &y, &incr, &p, height, xpmh);
238	pcg	1.7
239			if (y > 0)
240	pcg	1.9	XFillRectangle (display->display, TermWin.pixmap, gc, 0, 0, width,
241	pcg	1.7	y);
242			if (h < height)
243	pcg	1.9	XFillRectangle (display->display, TermWin.pixmap, gc, 0, (int)h,
244	pcg	1.7	width, height - h + 1);
245			for ( /nil / ; y < h; y++, p += incr)
246			{
247			if (p >= xpmh)
248			p = 0;
249			/* copy one row from the tmp pixmap to the main pixmap */
250	pcg	1.9	XCopyArea (display->display, tmp, TermWin.pixmap, gc,
251	pcg	1.7	0, (int)p, width, 1, 0, (int)y);
252			}
253	pcg	1.9	XFreePixmap (display->display, tmp);
254	pcg	1.7	}
255	pcg	1.1	}
256	root	1.14
257	pcg	1.9	XSetWindowBackgroundPixmap (display->display, TermWin.vt, TermWin.pixmap);
258			XFreeGC (display->display, gc);
259	pcg	1.7	am_transparent = 0;
260	pcg	1.1
261	pcg	1.9	XClearWindow (display->display, TermWin.vt);
262	pcg	1.1
263	pcg	1.9	XSync (display->display, False);
264	pcg	1.1	}
265
266			/*
267			* Calculate tiling sizes and increments
268			* At start, p == 0, incr == xpmwidthheight
269			*/
270	pcg	1.6	/* INTPROTO */
271			static void
272	pcg	1.9	rxvt_pixmap_incr (unsigned int wh, unsigned int xy, float incr, float p, unsigned int widthheight, unsigned int xpmwidthheight)
273	pcg	1.1	{
274	pcg	1.7	unsigned int cwh, cxy;
275			float cincr, cp;
276	pcg	1.1
277	pcg	1.7	cp = 0;
278			cincr = (float)xpmwidthheight;
279			cxy = *xy;
280			cwh = *wh;
281			if (cwh == 1)
282			{ /* display one image, no horizontal/vertical scaling */
283			cincr = (float)widthheight;
284			if (xpmwidthheight <= widthheight)
285			{
286			cwh = xpmwidthheight;
287			cxy = (cxy * (widthheight - cwh)) / 100; /* beware! order */
288			cwh += cxy;
289			}
290			else
291			{
292			cxy = 0;
293			cwh = widthheight;
294			}
295	pcg	1.1	}
296	pcg	1.7	else if (cwh < 10)
297			{ /* fit WH images across/down screen */
298			cincr *= cwh;
299			cxy = 0;
300			cwh = widthheight;
301			}
302			else
303			{
304			cincr *= 100.0 / cwh;
305			if (cwh < 100)
306			{ /* contract */
307			float pos;
308
309			cwh = (cwh * widthheight) / 100;
310			pos = (float)cxy / 100 * widthheight - (cwh / 2);
311
312			cxy = (widthheight - cwh);
313			if (pos <= 0)
314			cxy = 0;
315			else if (pos < cxy)
316			cxy = (int) pos;
317			cwh += cxy;
318			}
319			else
320			{ /* expand */
321			if (cxy > 0)
322			{ /* position */
323			float pos;
324
325			pos = (float)cxy / 100 * xpmwidthheight - (cincr / 2);
326			cp = xpmwidthheight - cincr;
327			if (pos <= 0)
328			cp = 0;
329			else if (pos < cp)
330			cp = pos;
331			}
332			cxy = 0;
333			cwh = widthheight;
334			}
335			}
336			cincr /= widthheight;
337			*wh = cwh;
338			*xy = cxy;
339			*incr = cincr;
340			*p = cp;
341	pcg	1.1	}
342
343			Pixmap
344	pcg	1.5	rxvt_term::set_bgPixmap (const char *file)
345	pcg	1.1	{
346	pcg	1.7	char *f;
347	pcg	1.1
348	pcg	1.9	assert (file != NULL);
349	pcg	1.1
350	pcg	1.7	if (bgPixmap.pixmap != None)
351			{
352	pcg	1.9	XFreePixmap (display->display, bgPixmap.pixmap);
353	pcg	1.7	bgPixmap.pixmap = None;
354	pcg	1.1	}
355	root	1.19
356	root	1.17	XSetWindowBackground (display->display, TermWin.vt, pix_colors[Color_bg]);
357	pcg	1.1
358	pcg	1.7	if (*file != '\0')
359			{
360			/* XWindowAttributes attr; */
361
362			/*
363			* we already have the required attributes
364			*/
365	pcg	1.9	/* XGetWindowAttributes (display->display, TermWin.vt, &attr); */
366	pcg	1.7
367			xpmAttr.closeness = 30000;
368	root	1.14	xpmAttr.colormap = display->cmap;
369			xpmAttr.visual = display->visual;
370			xpmAttr.depth = display->depth;
371	pcg	1.7	xpmAttr.valuemask = (XpmCloseness \| XpmColormap \| XpmVisual \|
372			XpmDepth \| XpmSize \| XpmReturnPixels);
373
374			/* search environment variables here too */
375	pcg	1.9	f = (char *)rxvt_File_find (file, ".xpm", rs[Rs_path]);
376	pcg	1.7	if (f == NULL
377	pcg	1.9	\|\| XpmReadFileToPixmap (display->display, display->root, f,
378	pcg	1.7	&bgPixmap.pixmap, NULL,
379			&xpmAttr))
380			{
381	pcg	1.10	char *p;
382	pcg	1.7
383			/* semi-colon delimited */
384	root	1.17	if ((p = strchr (file, ';')) == NULL)
385			p = strchr (file, '\0');
386	pcg	1.7
387	root	1.19	rxvt_warn ("couldn't load XPM file \"%.*s\", ignoring.\n", (p - file), file);
388	pcg	1.7	}
389	pcg	1.10
390	pcg	1.9	free (f);
391	pcg	1.1	}
392	pcg	1.10
393	pcg	1.7	resize_pixmap ();
394			return bgPixmap.pixmap;
395	pcg	1.1	}
396
397			#endif /* XPM_BACKGROUND */