Dogcows Code - chaz/openbox/blob - util/bsetroot.cc

   1 // -*- mode++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 // bsetroot.cc for Blackbox - an X11 Window manager
   3 // Copyright (c) 2001 - 2002 Sean 'Shaleh' Perry <shaleh at debian.org>
   4 // Copyright (c) 1997 - 2000, 2002 Brad Hughes <bhughes at trolltech.com>
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining a
   7 // copy of this software and associated documentation files (the "Software"),
   8 // to deal in the Software without restriction, including without limitation
   9 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10 // and/or sell copies of the Software, and to permit persons to whom the
  11 // Software is furnished to do so, subject to the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be included in
  14 // all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22 // DEALINGS IN THE SOFTWARE.
  23
  24 #ifdef    HAVE_CONFIG_H
  25 #  include "../config.h"
  26 #endif // HAVE_CONFIG_H
  27
  28 extern "C" {
  29 #ifdef HAVE_STDLIB_H
  30 #  include <stdlib.h>
  31 #endif // HAVE_STDLIB_H
  32
  33 #ifdef HAVE_STRING_H
  34 #  include <string.h>
  35 #endif // HAVE_STRING_H
  36
  37 #ifdef    HAVE_STDIO_H
  38 #  include <stdio.h>
  39 #endif // HAVE_STDIO_H
  40 }
  41
  42 #include "../src/i18n.hh"
  43 #include "../src/GCCache.hh"
  44 #include "../src/Texture.hh"
  45 #include "../src/Util.hh"
  46 #include "bsetroot.hh"
  47
  48
  49 I18n i18n;
  50
  51 bsetroot::bsetroot(int argc, char **argv, char *dpy_name)
  52   : BaseDisplay(argv[0], dpy_name)
  53 {
  54   grad = fore = back = (char *) 0;
  55
  56   bool mod = False, sol = False, grd = False;
  57   int mod_x = 0, mod_y = 0;
  58
  59   for (int i = 1; i < argc; i++) {
  60     if (! strcmp("-help", argv[i])) {
  61       usage();
  62     } else if ((! strcmp("-fg", argv[i])) ||
  63                (! strcmp("-foreground", argv[i])) ||
  64                (! strcmp("-from", argv[i]))) {
  65       if ((++i) >= argc) usage(1);
  66
  67       fore = argv[i];
  68     } else if ((! strcmp("-bg", argv[i])) ||
  69                (! strcmp("-background", argv[i])) ||
  70                (! strcmp("-to", argv[i]))) {
  71       if ((++i) >= argc) usage(1);
  72
  73       back = argv[i];
  74     } else if (! strcmp("-solid", argv[i])) {
  75       if ((++i) >= argc) usage(1);
  76
  77       fore = argv[i];
  78       sol = True;
  79     } else if (! strcmp("-mod", argv[i])) {
  80       if ((++i) >= argc) usage();
  81
  82       mod_x = atoi(argv[i]);
  83
  84       if ((++i) >= argc) usage();
  85
  86       mod_y = atoi(argv[i]);
  87
  88       if (mod_x < 1) mod_x = 1;
  89       if (mod_y < 1) mod_y = 1;
  90
  91       mod = True;
  92     } else if (! strcmp("-gradient", argv[i])) {
  93       if ((++i) >= argc) usage();
  94
  95       grad = argv[i];
  96       grd = True;
  97     } else if (! strcmp("-display", argv[i])) {
  98       // -display passed through tests ealier... we just skip it now
  99       i++;
 100     } else
 101       usage();
 102   }
 103
 104   if ((mod + sol + grd) != True) {
 105     fprintf(stderr,
 106             i18n(bsetrootSet, bsetrootMustSpecify,
 107                  "%s: error: must specify one of: -solid, -mod, -gradient\n"),
 108             getApplicationName());
 109
 110     usage(2);
 111   }
 112
 113   img_ctrl = new BImageControl*[getNumberOfScreens()];
 114   for (unsigned int s = 0; s < getNumberOfScreens(); ++s)
 115     img_ctrl[s] = new BImageControl(this, getScreenInfo(s), True);
 116
 117   if (sol && fore) solid();
 118   else if (mod && mod_x && mod_y && fore && back) modula(mod_x, mod_y);
 119   else if (grd && grad && fore && back) gradient();
 120   else usage();
 121 }
 122
 123
 124 bsetroot::~bsetroot(void) {
 125   XSetCloseDownMode(getXDisplay(), RetainPermanent);
 126
 127   XKillClient(getXDisplay(), AllTemporary);
 128
 129   std::for_each(img_ctrl, img_ctrl + getNumberOfScreens(), PointerAssassin());
 130
 131   delete [] img_ctrl;
 132 }
 133
 134
 135 // adapted from wmsetbg
 136 void bsetroot::setPixmapProperty(int screen, Pixmap pixmap) {
 137   static Atom rootpmap_id = None, esetroot_id = None;
 138   Atom type;
 139   int format;
 140   unsigned long length, after;
 141   unsigned char *data;
 142   const ScreenInfo *screen_info = getScreenInfo(screen);
 143
 144   if (rootpmap_id == None) {
 145     rootpmap_id = XInternAtom(getXDisplay(), "_XROOTPMAP_ID", False);
 146     esetroot_id = XInternAtom(getXDisplay(), "ESETROOT_PMAP_ID", False);
 147   }
 148
 149   XGrabServer(getXDisplay());
 150
 151   /* Clear out the old pixmap */
 152   XGetWindowProperty(getXDisplay(), screen_info->getRootWindow(),
 153                      rootpmap_id, 0L, 1L, False, AnyPropertyType,
 154                      &type, &format, &length, &after, &data);
 155
 156   if ((type == XA_PIXMAP) && (format == 32) && (length == 1)) {
 157     unsigned char* data_esetroot = 0;
 158     XGetWindowProperty(getXDisplay(), screen_info->getRootWindow(),
 159                        esetroot_id, 0L, 1L, False, AnyPropertyType,
 160                        &type, &format, &length, &after, &data_esetroot);
 161     if (data && data_esetroot && *((Pixmap *) data)) {
 162       XKillClient(getXDisplay(), *((Pixmap *) data));
 163       XSync(getXDisplay(), False);
 164       XFree(data_esetroot);
 165     }
 166     XFree(data);
 167   }
 168
 169   if (pixmap) {
 170     XChangeProperty(getXDisplay(), screen_info->getRootWindow(),
 171                     rootpmap_id, XA_PIXMAP, 32, PropModeReplace,
 172                     (unsigned char *) &pixmap, 1);
 173     XChangeProperty(getXDisplay(), screen_info->getRootWindow(),
 174                     esetroot_id, XA_PIXMAP, 32, PropModeReplace,
 175                     (unsigned char *) &pixmap, 1);
 176   } else {
 177     XDeleteProperty(getXDisplay(), screen_info->getRootWindow(),
 178                     rootpmap_id);
 179     XDeleteProperty(getXDisplay(), screen_info->getRootWindow(),
 180                     esetroot_id);
 181   }
 182
 183   XUngrabServer(getXDisplay());
 184   XFlush(getXDisplay());
 185 }
 186
 187
 188 // adapted from wmsetbg
 189 Pixmap bsetroot::duplicatePixmap(int screen, Pixmap pixmap,
 190                                  int width, int height) {
 191   XSync(getXDisplay(), False);
 192
 193   Pixmap copyP = XCreatePixmap(getXDisplay(),
 194                                getScreenInfo(screen)->getRootWindow(),
 195                                width, height,
 196                                DefaultDepth(getXDisplay(), screen));
 197   XCopyArea(getXDisplay(), pixmap, copyP, DefaultGC(getXDisplay(), screen),
 198             0, 0, width, height, 0, 0);
 199   XSync(getXDisplay(), False);
 200
 201   return copyP;
 202 }
 203
 204
 205 void bsetroot::solid(void) {
 206   for (unsigned int screen = 0; screen < getNumberOfScreens(); screen++) {
 207     BColor c(fore, this, screen);
 208     const ScreenInfo *screen_info = getScreenInfo(screen);
 209
 210     XSetWindowBackground(getXDisplay(), screen_info->getRootWindow(),
 211                          c.pixel());
 212     XClearWindow(getXDisplay(), screen_info->getRootWindow());
 213
 214     Pixmap pixmap = XCreatePixmap(getXDisplay(),
 215                                   screen_info->getRootWindow(),
 216                                   8, 8, DefaultDepth(getXDisplay(), screen));
 217     BPen pen(c);
 218     XFillRectangle(getXDisplay(), pixmap, pen.gc(), 0, 0, 8, 8);
 219
 220     setPixmapProperty(screen, duplicatePixmap(screen, pixmap, 8, 8));
 221
 222     XFreePixmap(getXDisplay(), pixmap);
 223   }
 224 }
 225
 226
 227 void bsetroot::modula(int x, int y) {
 228   char data[32];
 229   long pattern;
 230
 231   unsigned int screen, i;
 232
 233   for (pattern = 0, screen = 0; screen < getNumberOfScreens(); screen++) {
 234     for (i = 0; i < 16; i++) {
 235       pattern <<= 1;
 236       if ((i % x) == 0)
 237         pattern |= 0x0001;
 238     }
 239
 240     for (i = 0; i < 16; i++) {
 241       if ((i %  y) == 0) {
 242         data[(i * 2)] = static_cast<char>(0xff);
 243         data[(i * 2) + 1] = static_cast<char>(0xff);
 244       } else {
 245         data[(i * 2)] = pattern & 0xff;
 246         data[(i * 2) + 1] = (pattern >> 8) & 0xff;
 247       }
 248     }
 249
 250     BColor f(fore, this, screen), b(back, this, screen);
 251     GC gc;
 252     Pixmap bitmap;
 253     const ScreenInfo *screen_info = getScreenInfo(screen);
 254
 255     bitmap =
 256       XCreateBitmapFromData(getXDisplay(),
 257                             screen_info->getRootWindow(), data,
 258                             16, 16);
 259
 260     XGCValues gcv;
 261     gcv.foreground = f.pixel();
 262     gcv.background = b.pixel();
 263
 264     gc = XCreateGC(getXDisplay(), screen_info->getRootWindow(),
 265                    GCForeground | GCBackground, &gcv);
 266
 267     Pixmap pixmap = XCreatePixmap(getXDisplay(),
 268                                   screen_info->getRootWindow(),
 269                                   16, 16, screen_info->getDepth());
 270
 271     XCopyPlane(getXDisplay(), bitmap, pixmap, gc,
 272                0, 0, 16, 16, 0, 0, 1l);
 273     XSetWindowBackgroundPixmap(getXDisplay(),
 274                                screen_info->getRootWindow(),
 275                                pixmap);
 276     XClearWindow(getXDisplay(), screen_info->getRootWindow());
 277
 278     setPixmapProperty(screen,
 279                       duplicatePixmap(screen, pixmap, 16, 16));
 280
 281     XFreeGC(getXDisplay(), gc);
 282     XFreePixmap(getXDisplay(), bitmap);
 283
 284     if (! (screen_info->getVisual()->c_class & 1))
 285       XFreePixmap(getXDisplay(), pixmap);
 286   }
 287 }
 288
 289
 290 void bsetroot::gradient(void) {
 291   for (unsigned int screen = 0; screen < getNumberOfScreens(); screen++) {
 292     BTexture texture(grad, this, screen, img_ctrl[screen]);
 293     const ScreenInfo *screen_info = getScreenInfo(screen);
 294
 295     texture.setColor(BColor(fore, this, screen));
 296     texture.setColorTo(BColor(back, this, screen));
 297
 298     Pixmap pixmap =
 299       img_ctrl[screen]->renderImage(screen_info->getWidth(),
 300                                     screen_info->getHeight(),
 301                                     texture);
 302
 303     XSetWindowBackgroundPixmap(getXDisplay(),
 304                                screen_info->getRootWindow(),
 305                                pixmap);
 306     XClearWindow(getXDisplay(), screen_info->getRootWindow());
 307
 308     setPixmapProperty(screen,
 309                       duplicatePixmap(screen, pixmap,
 310                                       screen_info->getWidth(),
 311                                       screen_info->getHeight()));
 312
 313     if (! (screen_info->getVisual()->c_class & 1)) {
 314       img_ctrl[screen]->removeImage(pixmap);
 315     }
 316   }
 317 }
 318
 319
 320 void bsetroot::usage(int exit_code) {
 321     fprintf(stderr,
 322             i18n(bsetrootSet, bsetrootUsage,
 323                  "%s 2.0\n\n"
 324                  "Copyright (c) 1997-2000, 2002 Bradley T Hughes\n"
 325                  "Copyright (c) 2001-2002 Sean 'Shaleh' Perry\n\n"
 326                  "  -display <string>        display connection\n"
 327                  "  -mod <x> <y>             modula pattern\n"
 328                  "  -foreground, -fg <color> modula foreground color\n"
 329                  "  -background, -bg <color> modula background color\n\n"
 330                  "  -gradient <texture>      gradient texture\n"
 331                  "  -from <color>            gradient start color\n"
 332                  "  -to <color>              gradient end color\n\n"
 333                  "  -solid <color>           solid color\n\n"
 334                  "  -help                    print this help text and exit\n"),
 335             getApplicationName());
 336
 337     exit(exit_code);
 338 }
 339
 340 int main(int argc, char **argv) {
 341   char *display_name = (char *) 0;
 342
 343   i18n.openCatalog("blackbox.cat");
 344
 345   for (int i = 1; i < argc; i++) {
 346     if (! strcmp(argv[i], "-display")) {
 347       // check for -display option
 348
 349       if ((++i) >= argc) {
 350         fprintf(stderr, i18n(mainSet, mainDISPLAYRequiresArg,
 351                              "error: '-display' requires an argument\n"));
 352
 353         ::exit(1);
 354       }
 355
 356       display_name = argv[i];
 357     }
 358   }
 359
 360   bsetroot app(argc, argv, display_name);
 361
 362   return 0;
 363 }