src/pixmap.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1997, 1998 Alfredo K. Kojima
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19  *  USA.
  20  */
  21
  22 #include "wconfig.h"
  23
  24 #include <X11/Xlib.h>
  25 #include <X11/Xutil.h>
  26
  27 #include <wraster.h>
  28
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include "WindowMaker.h"
  32 #include "wcore.h"
  33
  34
  35
  36 /*
  37  *----------------------------------------------------------------------
  38  * wPixmapCreateFromXPMData--
  39  *      Creates a WPixmap structure and initializes it with the supplied
  40  * XPM structure data.
  41  *
  42  * Returns:
  43  *      A WPixmap structure or NULL on failure.
  44  *
  45  * Notes:
  46  *      DEF_XPM_CLOSENESS specifies the XpmCloseness
  47  *----------------------------------------------------------------------
  48  */
  49 WPixmap *
  50 wPixmapCreateFromXPMData(WScreen *scr, char **data)
  51 {
  52     RImage *image;
  53     WPixmap *pix;
  54
  55     image = RGetImageFromXPMData(scr->rcontext, data);
  56     if (!image)
  57         return NULL;
  58
  59     pix = wmalloc(sizeof(WPixmap));
  60     memset(pix, 0, sizeof(WPixmap));
  61
  62     RConvertImageMask(scr->rcontext, image, &pix->image, &pix->mask, 128);
  63
  64     pix->width = image->width;
  65     pix->height = image->height;
  66     pix->depth = scr->w_depth;
  67
  68     RDestroyImage(image);
  69
  70     return pix;
  71 }
  72
  73
  74 /*
  75  *----------------------------------------------------------------------
  76  * wPixmapCreateFromXBMData--
  77  *      Creates a WPixmap structure and initializes it with the supplied
  78  * XBM structure data, size and mask.
  79  *
  80  * Returns:
  81  *      A WPixmap structure or NULL on failure.
  82  *
  83  *----------------------------------------------------------------------
  84  */
  85 WPixmap *
  86 wPixmapCreateFromXBMData(WScreen *scr, char *data, char *mask,
  87                          int width, int height, unsigned long fg,
  88                          unsigned long bg)
  89 {
  90     WPixmap *pix;
  91
  92     pix = wmalloc(sizeof(WPixmap));
  93     memset(pix, 0, sizeof(WPixmap));
  94     pix->image = XCreatePixmapFromBitmapData(dpy, scr->w_win, data, width,
  95                                              height, fg, bg, scr->w_depth);
  96     if (pix->image==None) {
  97         free(pix);
  98         return NULL;
  99     }
 100     if (mask) {
 101         pix->mask = XCreateBitmapFromData(dpy, scr->w_win, mask, width,
 102                                           height);
 103     } else {
 104         pix->mask = None;
 105     }
 106     pix->width = width;
 107     pix->height = height;
 108     pix->depth = scr->w_depth;
 109     return pix;
 110 }
 111
 112
 113 #ifdef unused
 114 WPixmap*
 115 wPixmapCreateFromBitmap(WScreen *scr, Pixmap bitmap, Pixmap mask,
 116                         unsigned long fg, unsigned long bg)
 117 {
 118     WPixmap *pix;
 119     XImage *img, *img2;
 120     Window foo;
 121     int bar, x, y;
 122     Pixmap pixmap;
 123     unsigned int width, height, baz, d;
 124
 125     if (!XGetGeometry(dpy, bitmap, &foo, &bar, &bar, &width, &height, &baz,
 126                       &d) || d!=1) {
 127         return NULL;
 128     }
 129     img = XGetImage(dpy, bitmap, 0, 0, width, height, AllPlanes, XYPixmap);
 130     if (!img)
 131       return NULL;
 132
 133     img2=XCreateImage(dpy, scr->w_visual, scr->w_depth, ZPixmap,
 134                       0, NULL, width, height, 8, 0);
 135     if (!img2) {
 136         XDestroyImage(img);
 137         return NULL;
 138     }
 139
 140     pixmap = XCreatePixmap(dpy, scr->w_win, width, height, scr->w_depth);
 141     if (pixmap==None) {
 142         XDestroyImage(img);
 143         XDestroyImage(img2);
 144         return NULL;
 145     }
 146
 147     img2->data = wmalloc(height * img2->bytes_per_line);
 148
 149     for (y=0; y<height; y++) {
 150         for (x=0; x<width; x++) {
 151             if (XGetPixel(img, x, y)==0) {
 152                 XPutPixel(img2, x, y, bg);
 153             } else {
 154                 XPutPixel(img2, x, y, fg);
 155             }
 156         }
 157     }
 158     XSetClipMask(dpy, scr->copy_gc, None);
 159     XPutImage(dpy, pixmap, scr->copy_gc, img2, 0, 0, 0, 0, width, height);
 160     XDestroyImage(img);
 161     XDestroyImage(img2);
 162
 163     pix = wmalloc(sizeof(WPixmap));
 164     memset(pix, 0, sizeof(WPixmap));
 165     pix->image = pixmap;
 166     pix->mask = mask;
 167     pix->width = width;
 168     pix->height = height;
 169     pix->depth = scr->w_depth;
 170     return pix;
 171 }
 172 #endif /* unused */
 173
 174 WPixmap*
 175 wPixmapCreate(WScreen *scr, Pixmap image, Pixmap mask)
 176 {
 177     WPixmap *pix;
 178     Window foo;
 179     int bar;
 180     unsigned int width, height, depth, baz;
 181
 182     pix = wmalloc(sizeof(WPixmap));
 183     memset(pix, 0, sizeof(WPixmap));
 184     pix->image = image;
 185     pix->mask = mask;
 186     if (!XGetGeometry(dpy, image, &foo, &bar, &bar, &width, &height, &baz,
 187          &depth)) {
 188         wwarning("XGetGeometry() failed during wPixmapCreate()");
 189         free(pix);
 190         return NULL;
 191     }
 192     pix->width = width;
 193     pix->height = height;
 194     pix->depth = depth;
 195     return pix;
 196 }
 197
 198 #if 0
 199 /*
 200  *----------------------------------------------------------------------
 201  * wPixmapLoadXBMFile--
 202  *      Creates a WPixmap structure and loads a XBM file into it with
 203  * an optional mask file. If a mask is not wanted, mask_path should be
 204  * NULL.
 205  *
 206  * Returns:
 207  *      A WPixmap structure or NULL on failure.
 208  *
 209  * Notes:
 210  *      If the mask bitmap is not successfully loaded the operation
 211  * continues as no mask was supplied.
 212  *----------------------------------------------------------------------
 213  */
 214 WPixmap *
 215 wPixmapLoadXBMFile(WScreen *scr, char *path, char *mask_path)
 216 {
 217     WPixmap *pix;
 218     int junk;
 219
 220     if (!path) return NULL;
 221
 222     pix = wmalloc(sizeof(WPixmap));
 223     memset(pix, 0, sizeof(WPixmap));
 224
 225     if (XReadBitmapFile(dpy, scr->w_win, path, (unsigned *)&(pix->width),
 226                         (unsigned *)&(pix->height),
 227                         &(pix->image), &junk, &junk)!=BitmapSuccess) {
 228         free(pix);
 229         return NULL;
 230     }
 231     if (mask_path!=NULL) {
 232         if (XReadBitmapFile(dpy, scr->w_win, path, (unsigned *)&junk,
 233                             (unsigned *)&junk, &(pix->mask),
 234                             &junk, &junk) !=BitmapSuccess) {
 235             wwarning(_("could not load mask bitmap file \"%s\". Won't use mask"),
 236                      mask_path);
 237             pix->mask = None;
 238         }
 239     } else {
 240         pix->mask = None;
 241     }
 242     pix->depth = 1;
 243     return pix;
 244 }
 245
 246 #endif
 247
 248 /*
 249  *----------------------------------------------------------------------
 250  * wPixmapDestroy--
 251  *      Destroys a WPixmap structure and the pixmap/mask it holds.
 252  *
 253  * Returns:
 254  *      None
 255  *----------------------------------------------------------------------
 256  */
 257 void
 258 wPixmapDestroy(WPixmap *pix)
 259 {
 260     if (!pix->shared) {
 261         if (pix->mask && !pix->client_owned_mask) {
 262             XFreePixmap(dpy, pix->mask);
 263         }
 264
 265         if (pix->image && !pix->client_owned) {
 266             XFreePixmap(dpy, pix->image);
 267         }
 268     }
 269     free(pix);
 270 }
 271