wmtv/src/wmgeneral/wmgeneral.c

   1 /*
   2         Best viewed with vim5, using ts=4
   3
   4         wmgeneral was taken from wmppp.
   5
   6         It has a lot of routines which most of the wm* programs use.
   7
   8         ------------------------------------------------------------
   9
  10         Author: Martijn Pieterse (pieterse@xs4all.nl)
  11
  12         ---
  13         CHANGES:
  14         ---
  15         12/03/1999 (Wee Liang, wliang@tartarus.uwa.edu.au)
  16                 * Removed argument parsing from openXwindow
  17         12/02/1999 (Wee Liang, wliang@tartarus.uwa.edu.au)
  18                 * Removed parse_rcfile and parse_rcfile2.
  19                 * Change RedrawWindowXY to RedrawWindowXYWH
  20                 * Minor modifications to openXwindow. Added execute
  21                   file support.
  22         11/09/1998 (Martijn Pieterse, pieterse@xs4all.nl)
  23                 * Removed a bug from parse_rcfile. You could
  24                   not use "start" in a command if a label was
  25                   also start.
  26                 * Changed the needed geometry string.
  27                   We don't use window size, and don't support
  28                   negative positions.
  29         03/09/1998 (Martijn Pieterse, pieterse@xs4all.nl)
  30                 * Added parse_rcfile2
  31         02/09/1998 (Martijn Pieterse, pieterse@xs4all.nl)
  32                 * Added -geometry support (untested)
  33         28/08/1998 (Martijn Pieterse, pieterse@xs4all.nl)
  34                 * Added createXBMfromXPM routine
  35                 * Saves a lot of work with changing xpm's.
  36         02/05/1998 (Martijn Pieterse, pieterse@xs4all.nl)
  37                 * changed the read_rc_file to parse_rcfile, as suggested by Marcelo E. Magallon
  38                 * debugged the parse_rc file.
  39         30/04/1998 (Martijn Pieterse, pieterse@xs4all.nl)
  40                 * Ripped similar code from all the wm* programs,
  41                   and put them in a single file.
  42
  43 */
  44
  45 #include <stdlib.h>
  46 #include <stdio.h>
  47 #include <string.h>
  48 #include <unistd.h>
  49 #include <ctype.h>
  50 #include <stdarg.h>
  51 #include <errno.h>
  52
  53 #include <X11/Xlib.h>
  54 #include <X11/xpm.h>
  55 #include <X11/extensions/shape.h>
  56
  57 #include "wmgeneral.h"
  58
  59   /*****************/
  60  /* X11 Variables */
  61 /*****************/
  62
  63 Window          Root;
  64 int                     screen;
  65 int                     x_fd;
  66 int                     d_depth;
  67 XSizeHints      mysizehints;
  68 XWMHints        mywmhints;
  69 Pixel           back_pix, fore_pix;
  70 char            *Geometry = "";
  71 Window          iconwin, win;
  72 GC                      NormalGC;
  73 XpmIcon         wmgen;
  74 Pixmap          pixmask;
  75 char            *exef = NULL;
  76 char            *display_name = NULL;
  77 char            *geometry = NULL;
  78 char            *exe = NULL;
  79
  80   /*****************/
  81  /* Mouse Regions */
  82 /*****************/
  83
  84 typedef struct {
  85         int             enable;
  86         int             top;
  87         int             bottom;
  88         int             left;
  89         int             right;
  90 } MOUSE_REGION;
  91
  92 MOUSE_REGION    mouse_region[MAX_MOUSE_REGION];
  93
  94   /***********************/
  95  /* Function Prototypes */
  96 /***********************/
  97
  98 static void GetXPM(XpmIcon *, char **);
  99 static Pixel GetColor(char *);
 100 void RedrawWindow(void);
 101 void AddMouseRegion(unsigned, int, int, int, int);
 102 int CheckMouseRegion(int, int);
 103
 104 /*******************************************************************************\
 105 |* GetXPM                                                                                                                                          *|
 106 \*******************************************************************************/
 107
 108 static void GetXPM(XpmIcon *wmgen, char *pixmap_bytes[]) {
 109
 110         XWindowAttributes       attributes;
 111         int                                     err;
 112
 113         /* For the colormap */
 114         XGetWindowAttributes(display, Root, &attributes);
 115
 116         wmgen->attributes.valuemask |= (XpmReturnPixels | XpmReturnExtensions);
 117
 118         err = XpmCreatePixmapFromData(display, Root, pixmap_bytes, &(wmgen->pixmap),
 119                                         &(wmgen->mask), &(wmgen->attributes));
 120
 121         if (err != XpmSuccess) {
 122                 fprintf(stderr, "Not enough free colorcells.\n");
 123                 exit(1);
 124         }
 125 }
 126
 127 /*******************************************************************************\
 128 |* GetColor                                                                                                                                        *|
 129 \*******************************************************************************/
 130
 131 static Pixel GetColor(char *name) {
 132
 133         XColor                          color;
 134         XWindowAttributes       attributes;
 135
 136         XGetWindowAttributes(display, Root, &attributes);
 137
 138         color.pixel = 0;
 139         if (!XParseColor(display, attributes.colormap, name, &color)) {
 140                 fprintf(stderr, "wm.app: can't parse %s.\n", name);
 141         } else if (!XAllocColor(display, attributes.colormap, &color)) {
 142                 fprintf(stderr, "wm.app: can't allocate %s.\n", name);
 143         }
 144         return color.pixel;
 145 }
 146
 147 /*******************************************************************************\
 148 |* flush_expose                                                                                                                            *|
 149 \*******************************************************************************/
 150
 151 static int flush_expose(Window w) {
 152
 153         XEvent          dummy;
 154         int                     i=0;
 155
 156         while (XCheckTypedWindowEvent(display, w, Expose, &dummy))
 157                 i++;
 158
 159         return i;
 160 }
 161
 162 /*******************************************************************************\
 163 |* RedrawWindow                                                                                                                            *|
 164 \*******************************************************************************/
 165
 166 void RedrawWindow(void) {
 167
 168         flush_expose(iconwin);
 169         XCopyArea(display, wmgen.pixmap, iconwin, NormalGC,
 170                                 0,0, wmgen.attributes.width, wmgen.attributes.height, 0,0);
 171         flush_expose(win);
 172         XCopyArea(display, wmgen.pixmap, win, NormalGC,
 173                                 0,0, wmgen.attributes.width, wmgen.attributes.height, 0,0);
 174 }
 175
 176 /*******************************************************************************\
 177 |* RedrawWindowXYWH                                                                                                                        *|
 178 \*******************************************************************************/
 179
 180 void RedrawWindowXYWH(int x, int y, int w, int h) {
 181
 182         flush_expose(iconwin);
 183         XCopyArea(display, wmgen.pixmap, iconwin, NormalGC,
 184                                 x,y, w, h, 0,0);
 185         flush_expose(win);
 186         XCopyArea(display, wmgen.pixmap, win, NormalGC,
 187                                 x,y, w, h, 0,0);
 188 }
 189
 190 /*******************************************************************************\
 191 |* AddMouseRegion                                                                                                                          *|
 192 \*******************************************************************************/
 193
 194 void AddMouseRegion(unsigned index, int left, int top, int right, int bottom) {
 195
 196         if (index < MAX_MOUSE_REGION) {
 197                 mouse_region[index].enable = 1;
 198                 mouse_region[index].top = top;
 199                 mouse_region[index].left = left;
 200                 mouse_region[index].bottom = bottom;
 201                 mouse_region[index].right = right;
 202         }
 203 }
 204
 205 /*******************************************************************************\
 206 |* CheckMouseRegion                                                                                                                        *|
 207 \*******************************************************************************/
 208
 209 int CheckMouseRegion(int x, int y) {
 210
 211         int             i;
 212         int             found;
 213
 214         found = 0;
 215
 216         for (i=0; i<MAX_MOUSE_REGION && !found; i++) {
 217                 if (mouse_region[i].enable &&
 218                         x <= mouse_region[i].right &&
 219                         x >= mouse_region[i].left &&
 220                         y <= mouse_region[i].bottom &&
 221                         y >= mouse_region[i].top)
 222                         found = 1;
 223         }
 224         if (!found) return -1;
 225         return (i-1);
 226 }
 227
 228 /*******************************************************************************\
 229 |* createXBMfromXPM                                                                                                                        *|
 230 \*******************************************************************************/
 231 void createXBMfromXPM(char *xbm, char **xpm, int sx, int sy) {
 232
 233         int             i,j;
 234         int             width, height, numcol;
 235         char    zero;
 236         unsigned char   bwrite;
 237         int             bcount;
 238
 239
 240         sscanf(*xpm, "%d %d %d", &width, &height, &numcol);
 241
 242         zero = xpm[1][0];
 243         for (i=numcol+1; i < numcol+sy+1; i++) {
 244                 bcount = 0;
 245                 bwrite = 0;
 246                 for (j=0; j<sx; j++) {
 247                         bwrite >>= 1;
 248                         if (xpm[i][j] != zero) {
 249                                 bwrite += 128;
 250                         }
 251                         bcount++;
 252                         if (bcount == 8) {
 253                                 *xbm = bwrite;
 254                                 xbm++;
 255                                 bcount = 0;
 256                                 bwrite = 0;
 257                         }
 258                 }
 259         }
 260 }
 261
 262 /*******************************************************************************\
 263 |* copyXPMArea                                                                                                                             *|
 264 \*******************************************************************************/
 265
 266 void copyXPMArea(int x, int y, int sx, int sy, int dx, int dy) {
 267
 268         XCopyArea(display, wmgen.pixmap, wmgen.pixmap, NormalGC, x, y, sx, sy, dx, dy);
 269
 270 }
 271
 272 /*******************************************************************************\
 273 |* copyXBMArea                                                                                                                             *|
 274 \*******************************************************************************/
 275
 276 void copyXBMArea(int x, int y, int sx, int sy, int dx, int dy) {
 277
 278         XCopyArea(display, wmgen.mask, wmgen.pixmap, NormalGC, x, y, sx, sy, dx, dy);
 279 }
 280
 281
 282 /*******************************************************************************\
 283 |* setMaskXY                                                                                                                               *|
 284 \*******************************************************************************/
 285
 286 void setMaskXY(int x, int y) {
 287
 288          XShapeCombineMask(display, win, ShapeBounding, x, y, pixmask, ShapeSet);
 289          XShapeCombineMask(display, iconwin, ShapeBounding, x, y, pixmask, ShapeSet);
 290 }
 291
 292 /*******************************************************************************\
 293 |* openXwindow                                                                                                                             *|
 294 \*******************************************************************************/
 295 void openXwindow(int argc, char *argv[], char *pixmap_bytes[], char *pixmask_bits, int pixmask_width, int pixmask_height) {
 296
 297         unsigned int    borderwidth = 1;
 298         XClassHint              classHint;
 299         char                    *wname = argv[0];
 300         XTextProperty   name;
 301
 302         XGCValues               gcv;
 303         unsigned long   gcm;
 304
 305         int                             dummy=0;
 306         int                             wx, wy;
 307         //Window junkwin;
 308         //int rx, ry;
 309         //XWindowAttributes winatr;
 310
 311         /*
 312         for (i=1; argv[i]; i++) {
 313                 if (!strcmp(argv[i], "-display")) {
 314                         display_name = argv[i+1];
 315                         i++;
 316                 }
 317                 if (!strcmp(argv[i], "-geometry")) {
 318                         geometry = argv[i+1];
 319                         i++;
 320                 }
 321                 if (!strcmp(argv[i], "-exe")) {
 322                         exe = argv[i+1];
 323                         strcat (exe, " &");
 324                         exef = exe;
 325                         i++;
 326                 }
 327         }
 328         */
 329
 330         if (!(display = XOpenDisplay(display_name))) {
 331                 fprintf(stderr, "%s: can't open display %s\n",
 332                                                 wname, XDisplayName(display_name));
 333                 exit(1);
 334         }
 335
 336         screen  = DefaultScreen(display);
 337         Root    = RootWindow(display, screen);
 338         d_depth = DefaultDepth(display, screen);
 339         x_fd    = XConnectionNumber(display);
 340
 341         /* Convert XPM to XImage */
 342         GetXPM(&wmgen, pixmap_bytes);
 343
 344         /* Create a window to hold the stuff */
 345         mysizehints.flags = USSize | USPosition;
 346         mysizehints.x = 0;
 347         mysizehints.y = 0;
 348
 349         back_pix = GetColor("white");
 350         fore_pix = GetColor("black");
 351
 352         XWMGeometry(display, screen, Geometry, NULL, borderwidth, &mysizehints,
 353                                 &mysizehints.x, &mysizehints.y, &mysizehints.width, &mysizehints.height, &dummy);
 354
 355         mysizehints.width  = 64;
 356         mysizehints.height = 64;
 357
 358         win = XCreateSimpleWindow(display, Root, mysizehints.x, mysizehints.y,
 359                                 mysizehints.width, mysizehints.height, borderwidth, fore_pix, back_pix);
 360
 361         iconwin = XCreateSimpleWindow(display, win, mysizehints.x, mysizehints.y,
 362                                 mysizehints.width, mysizehints.height, borderwidth, fore_pix, back_pix);
 363
 364         /* Activate hints */
 365         XSetWMNormalHints(display, win, &mysizehints);
 366         classHint.res_name = wname;
 367         classHint.res_class = wname;
 368         XSetClassHint(display, win, &classHint);
 369
 370         XSelectInput(display, win, ButtonPressMask | ExposureMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask | VisibilityChangeMask);
 371         XSelectInput(display, iconwin, ButtonPressMask | ExposureMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask | VisibilityChangeMask);
 372
 373         if (XStringListToTextProperty(&wname, 1, &name) == 0) {
 374                 fprintf(stderr, "%s: can't allocate window name\n", wname);
 375                 exit(1);
 376         }
 377
 378         XSetWMName(display, win, &name);
 379
 380         /* Create GC for drawing */
 381
 382         gcm = GCForeground | GCBackground | GCGraphicsExposures;
 383         gcv.foreground = fore_pix;
 384         gcv.background = back_pix;
 385         gcv.graphics_exposures = 0;
 386         NormalGC = XCreateGC(display, Root, gcm, &gcv);
 387
 388         /* ONLYSHAPE ON */
 389
 390         pixmask = XCreateBitmapFromData(display, win, pixmask_bits, pixmask_width, pixmask_height);
 391
 392         XShapeCombineMask(display, win, ShapeBounding, 0, 0, pixmask, ShapeSet);
 393         XShapeCombineMask(display, iconwin, ShapeBounding, 0, 0, pixmask, ShapeSet);
 394
 395         /* ONLYSHAPE OFF */
 396
 397         mywmhints.initial_state = WithdrawnState;
 398         mywmhints.icon_window = iconwin;
 399         mywmhints.icon_x = mysizehints.x;
 400         mywmhints.icon_y = mysizehints.y;
 401         mywmhints.window_group = win;
 402         mywmhints.flags = StateHint | IconWindowHint | IconPositionHint | WindowGroupHint;
 403         XSetWMHints(display, win, &mywmhints);
 404
 405         XSetCommand(display, win, argv, argc);
 406         XMapWindow(display, win);
 407
 408 //      XGetWindowAttributes(display, iconwin, &winatr);
 409 //      XTranslateCoordinates(display, iconwin, winatr.root, -winatr.border_width, - winatr.border_width,
 410 //                                      &rx, &ry, &junkwin);
 411
 412         if (geometry) {
 413                 if (sscanf(geometry, "+%d+%d", &wx, &wy) != 2) {
 414                         fprintf(stderr, "Bad geometry string.\n");
 415                         exit(1);
 416                 }
 417                 XMoveWindow(display, win, wx, wy);
 418         }
 419 }