wmcalclockkbd/src/xutils.c

   1 /*
   2  *   xutils.c - A collection of X-windows utilties for creating WindowMAker
   3  *              DockApps.
   4  *
   5  *     This file contains alot of the lower-level X windows routines. Origins with wmppp
   6  *     (by  Martijn Pieterse (pieterse@xs4all.nl)), but its been hacked up quite a bit
   7  *     and passed on from one new DockApp to the next.
   8  *
   9  *
  10  *
  11  *
  12  *      This program is free software; you can redistribute it and/or modify
  13  *      it under the terms of the GNU General Public License as published by
  14  *      the Free Software Foundation; either version 2, or (at your option)
  15  *      any later version.
  16  *
  17  *      This program is distributed in the hope that it will be useful,
  18  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *      GNU General Public License for more details.
  21  *
  22  *      You should have received a copy of the GNU General Public License
  23  *      along with this program (see the file COPYING); if not, write to the
  24  *      Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  25  *      Boston, MA  02111-1307, USA
  26  *
  27  *
  28  *
  29  *
  30  */
  31 #include <stdlib.h>
  32 #include <stdio.h>
  33 #include <string.h>
  34 #include <unistd.h>
  35 #include <ctype.h>
  36 #include <stdarg.h>
  37 #include <X11/Xlib.h>
  38 #include <X11/xpm.h>
  39 #include <X11/extensions/shape.h>
  40 #include <X11/XKBlib.h>
  41 #include "xutils.h"
  42
  43
  44
  45 /*
  46  *   X11 Variables
  47  */
  48 int             x_fd;
  49 XSizeHints      mysizehints;
  50 XWMHints        mywmhints;
  51 Pixel           back_pix, fore_pix;
  52 char            *Geometry = "";
  53 GC              NormalGC;
  54 XpmIcon         wmgen;
  55 Pixmap          pixmask;
  56
  57
  58 /*
  59  *  Colors for wmCalClock
  60  */
  61 extern char    TimeColor[30];
  62 extern char    BackgroundColor[30];
  63
  64
  65
  66 /* Images for keyboard layouts */
  67 XImage *kb_orig_img[4];
  68 XImage *kb_trans_img[4];
  69 extern int KbLoadedImgs;
  70 extern float KbTransparency;
  71
  72 #define KB_X_OFFSET     5
  73 #define KB_Y_OFFSET     24
  74 #define KB_DES_WIDTH    54
  75 #define KB_DES_HEIGHT   35
  76 #define KB_MAX_GROUPS   4
  77
  78
  79
  80 /*
  81  *   flush_expose
  82  */
  83 static int flush_expose(Window w) {
  84
  85     XEvent      dummy;
  86     int         i=0;
  87
  88     while (XCheckTypedWindowEvent(display, w, Expose, &dummy))
  89     i++;
  90
  91     return i;
  92
  93 }
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103 /*
 104  *   RedrawWindow
 105  *   RedrawWindowXY
 106  */
 107 void RedrawWindow(void) {
 108
 109     flush_expose(iconwin);
 110     XCopyArea(display, wmgen.pixmap, iconwin, NormalGC, 0,0, wmgen.attributes.width, wmgen.attributes.height, 0, 0);
 111
 112     flush_expose(win);
 113     XCopyArea(display, wmgen.pixmap, win, NormalGC, 0,0, wmgen.attributes.width, wmgen.attributes.height, 0, 0);
 114
 115 }
 116
 117 void RedrawWindowXY(int x, int y) {
 118
 119     flush_expose(iconwin);
 120     XCopyArea(display, wmgen.pixmap, iconwin, NormalGC, x,y, wmgen.attributes.width, wmgen.attributes.height, 0, 0);
 121
 122     flush_expose(win);
 123     XCopyArea(display, wmgen.pixmap, win, NormalGC, x,y, wmgen.attributes.width, wmgen.attributes.height, 0, 0);
 124
 125 }
 126
 127
 128
 129
 130
 131
 132
 133 /*
 134  *   copyXPMArea
 135  *   copyXBMArea
 136  */
 137 void copyXPMArea(int x, int y, int sx, int sy, int dx, int dy) {
 138         XCopyArea(display, wmgen.pixmap, wmgen.pixmap, NormalGC, x, y, sx, sy, dx, dy);
 139 }
 140
 141 void copyXBMArea(int x, int y, int sx, int sy, int dx, int dy) {
 142
 143         XCopyArea(display, wmgen.mask, wmgen.pixmap, NormalGC, x, y, sx, sy, dx, dy);
 144 }
 145
 146
 147
 148 /*
 149  *   initXwindow
 150  */
 151 void initXwindow(int argc, char *argv[]){
 152
 153     int          i;
 154     char        *display_name = NULL;
 155
 156     for (i=1; argv[i]; ++i) {
 157         if (!strcmp(argv[i], "-display")) display_name = argv[i+1];
 158     }
 159
 160
 161     if (!(display = XOpenDisplay(display_name))) {
 162         fprintf(stderr, "%s: can't open display %s\n",
 163                 argv[0], XDisplayName(display_name));
 164         exit(1);
 165     }
 166
 167
 168     screen       = DefaultScreen(display);
 169     Root         = RootWindow(display, screen);
 170     DisplayDepth = DefaultDepth(display, screen);
 171     x_fd         = XConnectionNumber(display);
 172
 173 }
 174
 175
 176
 177
 178
 179 /*
 180  *   openXwindow
 181  */
 182 void openXwindow(int argc, char *argv[], char *pixmap_bytes[], char *pixmask_bits,
 183     int pixmask_width, int pixmask_height) {
 184
 185     unsigned int        borderwidth = 1;
 186     XClassHint          classHint;
 187     char                *wname = argv[0];
 188     XTextProperty       name;
 189     XGCValues           gcv;
 190     unsigned long       gcm;
 191     int                 dummy=0, red, grn, blu;
 192     XpmColorSymbol      cols[10]={      {"Back", NULL, 0},
 193                                         {"Color1", NULL, 0},
 194                                         {"Color2", NULL, 0},
 195                                         {"Color3", NULL, 0},
 196                                         {"Color4", NULL, 0},
 197                                         {"Color5", NULL, 0},
 198                                         {"Color6", NULL, 0},
 199                                         {"Color7", NULL, 0},
 200                                         {"Color8", NULL, 0},
 201                                         {"Color9", NULL, 0}};
 202
 203
 204
 205
 206     /*
 207      *  Create Pixmap
 208      */
 209     cols[0].pixel                 = getColor(BackgroundColor, 1.0000, &red, &grn, &blu);
 210     cols[1].pixel                 = getBlendedColor(TimeColor, 0.1522, red, grn, blu);
 211     cols[2].pixel                 = getBlendedColor(TimeColor, 0.2602, red, grn, blu);
 212     cols[3].pixel                 = getBlendedColor(TimeColor, 0.3761, red, grn, blu);
 213     cols[4].pixel                 = getBlendedColor(TimeColor, 0.4841, red, grn, blu);
 214     cols[5].pixel                 = getBlendedColor(TimeColor, 0.5922, red, grn, blu);
 215     cols[6].pixel                 = getBlendedColor(TimeColor, 0.6980, red, grn, blu);
 216     cols[7].pixel                 = getBlendedColor(TimeColor, 0.7961, red, grn, blu);
 217     cols[8].pixel                 = getBlendedColor(TimeColor, 0.8941, red, grn, blu);
 218     cols[9].pixel                 = getBlendedColor(TimeColor, 1.0000, red, grn, blu);
 219
 220     wmgen.attributes.numsymbols   = 10;
 221     wmgen.attributes.colorsymbols = cols;
 222     wmgen.attributes.exactColors  = False;
 223     wmgen.attributes.closeness    = 40000;
 224     wmgen.attributes.valuemask    = XpmReturnPixels | XpmReturnExtensions | XpmColorSymbols
 225                                                         | XpmExactColors | XpmCloseness | XpmSize;
 226     if (XpmCreatePixmapFromData(display, Root, pixmap_bytes,
 227       &(wmgen.pixmap), &(wmgen.mask), &(wmgen.attributes)) != XpmSuccess){
 228         fprintf(stderr, "Not enough free colorcells.\n");
 229         exit(1);
 230     }
 231
 232
 233
 234
 235     /*
 236      *  Create a window
 237      */
 238     mysizehints.flags = USSize | USPosition;
 239     mysizehints.x = 0;
 240     mysizehints.y = 0;
 241
 242     back_pix = getColor("white", 1.0, &red, &grn, &blu);
 243     fore_pix = getColor("black", 1.0, &red, &grn, &blu);
 244
 245     XWMGeometry(display, screen, Geometry, NULL, borderwidth, &mysizehints,
 246                                 &mysizehints.x, &mysizehints.y,&mysizehints.width,&mysizehints.height, &dummy);
 247
 248     mysizehints.width = 64;
 249     mysizehints.height = 64;
 250
 251
 252
 253     win = XCreateSimpleWindow(display, Root, mysizehints.x, mysizehints.y,
 254                                 mysizehints.width, mysizehints.height, borderwidth, fore_pix, back_pix);
 255
 256     iconwin = XCreateSimpleWindow(display, win, mysizehints.x, mysizehints.y,
 257                                 mysizehints.width, mysizehints.height, borderwidth, fore_pix, back_pix);
 258
 259
 260
 261     /*
 262      *  Activate hints
 263      */
 264     XSetWMNormalHints(display, win, &mysizehints);
 265     classHint.res_name = wname;
 266     classHint.res_class = wname;
 267     XSetClassHint(display, win, &classHint);
 268
 269
 270
 271     /*
 272      *  Set up the xevents that you want the relevent windows to inherit
 273      *  Currently, its seems that setting KeyPress events here has no
 274      *  effect. I.e. for some you will need to Grab the focus and then return
 275      *  it after you are done...
 276      */
 277     XSelectInput(display, win, ButtonPressMask | ExposureMask | ButtonReleaseMask
 278                 | PointerMotionMask | StructureNotifyMask | EnterWindowMask | LeaveWindowMask
 279                                                 | KeyPressMask | KeyReleaseMask);
 280     XSelectInput(display, iconwin, ButtonPressMask | ExposureMask | ButtonReleaseMask
 281                 | PointerMotionMask | StructureNotifyMask | EnterWindowMask | LeaveWindowMask
 282                                                 | KeyPressMask | KeyReleaseMask);
 283
 284
 285     if (XStringListToTextProperty(&wname, 1, &name) == 0) {
 286         fprintf(stderr, "%s: can't allocate window name\n", wname);
 287         exit(1);
 288     }
 289
 290
 291     XSetWMName(display, win, &name);
 292
 293     /*
 294      *   Create Graphics Context (GC) for drawing
 295      */
 296     gcm = GCForeground | GCBackground | GCGraphicsExposures;
 297     gcv.foreground = fore_pix;
 298     gcv.background = back_pix;
 299     gcv.graphics_exposures = 0;
 300     NormalGC = XCreateGC(display, Root, gcm, &gcv);
 301
 302
 303
 304     pixmask = XCreateBitmapFromData(display, win, pixmask_bits, pixmask_width, pixmask_height);
 305     XShapeCombineMask(display, win, ShapeBounding, 0, 0, pixmask, ShapeSet);
 306     XShapeCombineMask(display, iconwin, ShapeBounding, 0, 0, pixmask, ShapeSet);
 307
 308
 309     mywmhints.initial_state = WithdrawnState;
 310     mywmhints.icon_window = iconwin;
 311     mywmhints.icon_x = mysizehints.x;
 312     mywmhints.icon_y = mysizehints.y;
 313     mywmhints.window_group = win;
 314     mywmhints.flags = StateHint | IconWindowHint | IconPositionHint | WindowGroupHint;
 315
 316
 317     XSetWMHints(display, win, &mywmhints);
 318
 319
 320     XSetCommand(display, win, argv, argc);
 321     XMapWindow(display, win);
 322
 323 }
 324
 325 unsigned long getColor(char *ColorName, float fac, int *red, int *grn, int *blu) {
 326
 327      XColor             Color;
 328      XWindowAttributes  Attributes;
 329
 330      XGetWindowAttributes(display, Root, &Attributes);
 331      Color.pixel = 0;
 332
 333      XParseColor(display, Attributes.colormap, ColorName, &Color);
 334      Color.red   = (unsigned short)(fac*(Color.red-24) + 24);
 335      Color.blue  = (unsigned short)(fac*(Color.blue-24) + 24);
 336      Color.green = (unsigned short)(fac*(Color.green-24) + 24);
 337      Color.flags = DoRed | DoGreen | DoBlue;
 338      XAllocColor(display, Attributes.colormap, &Color);
 339
 340
 341      *red = Color.red;
 342      *grn = Color.green;
 343      *blu = Color.blue;
 344      return Color.pixel;
 345
 346 }
 347
 348 unsigned long getBlendedColor(char *ColorName, float fac, int red, int grn, int blu) {
 349
 350      XColor             Color;
 351      XWindowAttributes  Attributes;
 352
 353      XGetWindowAttributes(display, Root, &Attributes);
 354      Color.pixel = 0;
 355
 356      XParseColor(display, Attributes.colormap, ColorName, &Color);
 357      Color.red   = (unsigned short)(fac*(Color.red-red) + red);
 358      Color.blue  = (unsigned short)(fac*(Color.blue-grn) + grn);
 359      Color.green = (unsigned short)(fac*(Color.green-blu) + blu);
 360      Color.flags = DoRed | DoGreen | DoBlue;
 361      XAllocColor(display, Attributes.colormap, &Color);
 362
 363      return Color.pixel;
 364
 365 }
 366
 367
 368 int LoadKbImg(char *names)
 369 {
 370      char tmp[1024], *point = NULL, aux[1024];
 371      int i;
 372      XpmAttributes attr;
 373
 374      tmp[1023] = '\0';
 375      strncpy(tmp, names, 1024);
 376      if (tmp[1023] != '\0') {
 377          fprintf(stderr, "wmCalClock: Error parsing image names for keyboard layouts.\n");
 378
 379          return (-1);
 380      }
 381
 382      /* load images from file */
 383      point = strtok(tmp, ",");
 384      for (i = 0; i < KB_MAX_GROUPS; i++) {
 385          if (point) {
 386              if ((point[0] == '.') || (point[0] == '/')) {
 387                  strcpy(aux, point);
 388              } else {
 389                  strcpy(aux, KB_PIXMAP_PREFIX);
 390                  strncat(aux, point, 1024 - strlen(aux) - 1);
 391              }
 392              attr.valuemask = 0;
 393              if (XpmReadFileToImage(display, aux, &kb_orig_img[i], NULL, &attr) != XpmSuccess) {
 394                  fprintf(stderr, "wmCalClock: Could not read flag image %s.\n",
 395                          point);
 396
 397                  return (-1);
 398              }
 399              if ((attr.width != KB_DES_WIDTH) || (attr.height != KB_DES_HEIGHT)) {
 400                  fprintf(stderr, "wmCalClock: %s hasn't %dx%d dimension.",
 401                          point, KB_DES_WIDTH, KB_DES_HEIGHT);
 402
 403                  return (-1);
 404              }
 405              kb_trans_img[i] = XSubImage(kb_orig_img[i], 0, 0, KB_DES_WIDTH, KB_DES_HEIGHT);
 406          } else {
 407              break;
 408          }
 409          point = strtok(NULL, ",");
 410      }
 411
 412
 413      return ((i > KB_MAX_GROUPS) ? KB_MAX_GROUPS : i);
 414 }
 415
 416
 417 void CreateKbTranImgs(void)
 418 {
 419      int i, j, k;
 420      XImage *image;
 421      XColor c_o, c_n;   /* original and new color */
 422      XWindowAttributes attributes;
 423      float KT = KbTransparency;
 424
 425      XGetWindowAttributes(display, Root, &attributes);
 426      image = XGetImage(display, wmgen.pixmap, KB_X_OFFSET, KB_Y_OFFSET,
 427                        KB_DES_WIDTH, KB_DES_HEIGHT, -1, ZPixmap);
 428
 429      for (i = 0; i < KB_DES_WIDTH; i++) {
 430          for (j = 0; j < KB_DES_HEIGHT; j++) {
 431              c_o.pixel = XGetPixel(image, i, j);
 432              XQueryColor(display, attributes.colormap, &c_o);
 433
 434              for (k = 0; k < KbLoadedImgs; k++) {
 435                  c_n.pixel = XGetPixel(kb_orig_img[k], i, j);
 436                  XQueryColor(display, attributes.colormap, &c_n);
 437                  c_n.red = c_o.red * (1 - KT) + c_n.red * KT;
 438                  c_n.green = c_o.green * (1 - KT) + c_n.green * KT;
 439                  c_n.blue = c_o.blue * (1 - KT) + c_n.blue * KT;
 440                  XAllocColor(display, attributes.colormap, &c_n);
 441                  XPutPixel(kb_trans_img[k], i, j, c_n.pixel);
 442              }
 443          }
 444      }
 445
 446      XDestroyImage(image);
 447 }
 448
 449
 450 void ShowGroupImage(int group)
 451 {
 452      XPutImage(display, wmgen.pixmap, NormalGC, kb_trans_img[group],
 453             0, 0, KB_X_OFFSET, KB_Y_OFFSET, KB_DES_WIDTH, KB_DES_HEIGHT);
 454 }