1 /*--------------------------------*-C-*---------------------------------*
3 *----------------------------------------------------------------------*
4 * $Id: xpm.C,v 1.7 2004-02-01 01:34:41 pcg Exp $
6 * All portions of code are copyright by their respective author/s.
7 * Copyright (c) 1997 Carsten Haitzler <raster@zip.com.au>
8 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
9 * Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
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.
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.
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 *---------------------------------------------------------------------*/
26 #include "../config.h" /* NECESSARY */
27 #include "rxvt.h" /* NECESSARY */
28 #include "xpm.intpro" /* PROTOS for internal routines */
33 * These GEOM strings indicate absolute size/position:
36 * @ `WxH' -> Y = X = 50
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)
45 * These GEOM strings adjust position relative to current position:
49 * And this GEOM string is for querying current scale/position:
53 rxvt_term::scale_pixmap (const char *geom)
55 int flags, changed = 0;
57 unsigned int w = 0, h = 0;
60 bgPixmap_t *bgpixmap = &(bgPixmap);
62 #define MAXLEN_GEOM sizeof("[1000x1000+1000+1000]")
66 str = (char *)rxvt_malloc (MAXLEN_GEOM + 1);
67 if (!STRCMP(geom, "?"))
69 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 xterm_seq (XTerm_title, str, CHAR_ST);
77 if ((p = STRCHR(geom, ';')) == NULL)
78 p = STRCHR(geom, '\0');
82 STRNCPY(str, geom, n);
85 flags = XParseGeometry(str, &x, &y, &w, &h);
90 } /* default is tile */
91 if (flags & WidthValue)
93 if (!(flags & XValue))
95 if (!(flags & HeightValue))
99 w = (bgpixmap->w * w) / 100;
105 h = (bgpixmap->h * h) / 100;
111 if (bgpixmap->w != (short)w)
113 bgpixmap->w = (short)w;
116 if (bgpixmap->h != (short)h)
118 bgpixmap->h = (short)h;
122 if (!(flags & YValue))
124 if (flags & XNegative)
129 if (!(flags & WidthValue) && geom[0] != '=')
136 if (flags & XNegative)
138 if (flags & YNegative)
145 if (bgpixmap->x != x)
150 if (bgpixmap->y != y)
161 rxvt_term::resize_pixmap ()
165 unsigned int width = TermWin_TotalWidth();
166 unsigned int height = TermWin_TotalHeight();
168 if (TermWin.pixmap != None)
169 XFreePixmap(Xdisplay, TermWin.pixmap);
171 if (bgPixmap.pixmap == None)
172 { /* So be it: I'm not using pixmaps */
173 TermWin.pixmap = None;
174 if (!(Options & Opt_transparent) || am_transparent == 0)
175 XSetWindowBackground(Xdisplay, TermWin.vt,
176 PixColors[Color_bg]);
180 gcvalue.foreground = PixColors[Color_bg];
181 gc = XCreateGC(Xdisplay, TermWin.vt, GCForeground, &gcvalue);
183 if (bgPixmap.pixmap != None)
184 { /* we have a specified pixmap */
185 unsigned int w = bgPixmap.w, h = bgPixmap.h,
186 x = bgPixmap.x, y = bgPixmap.y;
187 unsigned int xpmh = xpmAttr.height,
188 xpmw = xpmAttr.width;
191 * don't zoom pixmap too much nor expand really small pixmaps
193 if (w > 1000 || h > 1000)
195 else if (width > (10 * xpmw)
196 || height > (10 * xpmh))
201 /* basic X tiling - let the X server do it */
202 TermWin.pixmap = XCreatePixmap(Xdisplay, TermWin.vt,
204 (unsigned int)XDEPTH);
205 XCopyArea(Xdisplay, bgPixmap.pixmap, TermWin.pixmap, gc,
206 0, 0, xpmw, xpmh, 0, 0);
213 TermWin.pixmap = XCreatePixmap(Xdisplay, TermWin.vt,
215 (unsigned int)XDEPTH);
219 rxvt_pixmap_incr(&w, &x, &incr, &p, width, xpmw);
221 tmp = XCreatePixmap(Xdisplay, TermWin.vt,
222 width, xpmh, (unsigned int)XDEPTH);
223 XFillRectangle(Xdisplay, tmp, gc, 0, 0, width,
226 for ( /*nil */ ; x < w; x++, p += incr)
230 /* copy one column from the original pixmap to the tmp pixmap */
231 XCopyArea(Xdisplay, bgPixmap.pixmap, tmp, gc,
232 (int)p, 0, 1, xpmh, (int)x, 0);
238 rxvt_pixmap_incr(&h, &y, &incr, &p, height, xpmh);
241 XFillRectangle(Xdisplay, TermWin.pixmap, gc, 0, 0, width,
244 XFillRectangle(Xdisplay, TermWin.pixmap, gc, 0, (int)h,
245 width, height - h + 1);
246 for ( /*nil */ ; y < h; y++, p += incr)
250 /* copy one row from the tmp pixmap to the main pixmap */
251 XCopyArea(Xdisplay, tmp, TermWin.pixmap, gc,
252 0, (int)p, width, 1, 0, (int)y);
254 XFreePixmap(Xdisplay, tmp);
257 XSetWindowBackgroundPixmap(Xdisplay, TermWin.vt, TermWin.pixmap);
258 XFreeGC(Xdisplay, gc);
261 XClearWindow(Xdisplay, TermWin.vt);
263 XSync(Xdisplay, False);
267 * Calculate tiling sizes and increments
268 * At start, p == 0, incr == xpmwidthheight
272 rxvt_pixmap_incr(unsigned int *wh, unsigned int *xy, float *incr, float *p, unsigned int widthheight, unsigned int xpmwidthheight)
274 unsigned int cwh, cxy;
278 cincr = (float)xpmwidthheight;
282 { /* display one image, no horizontal/vertical scaling */
283 cincr = (float)widthheight;
284 if (xpmwidthheight <= widthheight)
286 cwh = xpmwidthheight;
287 cxy = (cxy * (widthheight - cwh)) / 100; /* beware! order */
297 { /* fit WH images across/down screen */
304 cincr *= 100.0 / cwh;
309 cwh = (cwh * widthheight) / 100;
310 pos = (float)cxy / 100 * widthheight - (cwh / 2);
312 cxy = (widthheight - cwh);
325 pos = (float)cxy / 100 * xpmwidthheight - (cincr / 2);
326 cp = xpmwidthheight - cincr;
336 cincr /= widthheight;
344 rxvt_term::set_bgPixmap (const char *file)
348 assert(file != NULL);
350 if (bgPixmap.pixmap != None)
352 XFreePixmap(Xdisplay, bgPixmap.pixmap);
353 bgPixmap.pixmap = None;
355 XSetWindowBackground(Xdisplay, TermWin.vt, PixColors[Color_bg]);
359 /* XWindowAttributes attr; */
362 * we already have the required attributes
364 /* XGetWindowAttributes(Xdisplay, TermWin.vt, &attr); */
366 xpmAttr.closeness = 30000;
367 xpmAttr.colormap = XCMAP;
368 xpmAttr.visual = XVISUAL;
369 xpmAttr.depth = XDEPTH;
370 xpmAttr.valuemask = (XpmCloseness | XpmColormap | XpmVisual |
371 XpmDepth | XpmSize | XpmReturnPixels);
373 /* search environment variables here too */
374 f = (char *)rxvt_File_find(file, ".xpm", rs[Rs_path]);
376 || XpmReadFileToPixmap(Xdisplay, Xroot, f,
377 &bgPixmap.pixmap, NULL,
382 /* semi-colon delimited */
383 if ((p = STRCHR(file, ';')) == NULL)
384 p = STRCHR(file, '\0');
386 rxvt_print_error("couldn't load XPM file \"%.*s\"", (p - file),
392 return bgPixmap.pixmap;
395 #endif /* XPM_BACKGROUND */