wmkeys/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         02/05/1998 (Martijn Pieterse, pieterse@xs4all.nl)
  16                 * changed the read_rc_file to parse_rcfile, as suggester by Marcelo E. Magallon
  17                 * debugged the parse_rc file.
  18         30/04/1998 (Martijn Pieterse, pieterse@xs4all.nl)
  19                 * Ripped similar code from all the wm* programs,
  20                   and put them in a single file.
  21
  22 */
  23
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <unistd.h>
  28 #include <ctype.h>
  29 #include <stdarg.h>
  30
  31 #include <X11/Xlib.h>
  32 #include <X11/xpm.h>
  33 #include <X11/extensions/shape.h>
  34
  35 #include "wmgeneral.h"
  36
  37   /*****************/
  38  /* X11 Variables */
  39 /*****************/
  40
  41 Window          Root;
  42 int                     screen;
  43 int                     x_fd;
  44 int                     d_depth;
  45 XSizeHints      mysizehints;
  46 XWMHints        mywmhints;
  47 Pixel           back_pix, fore_pix;
  48 char            *Geometry = "";
  49 Window          iconwin, win;
  50 GC                      NormalGC;
  51 XpmIcon         wmgen;
  52 Pixmap          pixmask;
  53
  54   /*****************/
  55  /* Mouse Regions */
  56 /*****************/
  57
  58 typedef struct {
  59         int             enable;
  60         int             top;
  61         int             bottom;
  62         int             left;
  63         int             right;
  64 } MOUSE_REGION;
  65
  66 #define MAX_MOUSE_REGION (8)
  67 MOUSE_REGION    mouse_region[MAX_MOUSE_REGION];
  68
  69   /***********************/
  70  /* Function Prototypes */
  71 /***********************/
  72
  73 static void GetXPM(XpmIcon *, char **);
  74 static Pixel GetColor(char *);
  75 void RedrawWindow(void);
  76 void AddMouseRegion(int, int, int, int, int);
  77 int CheckMouseRegion(int, int);
  78
  79 /*******************************************************************************\
  80 |* read_rc_file                                                                                                                            *|
  81 \*******************************************************************************/
  82
  83 void parse_rcfile(const char *filename, rckeys *keys) {
  84
  85         char    *p;
  86         char    temp[128];
  87         char    *tokens = " :\t\n";
  88         FILE    *fp;
  89         int             i,key;
  90
  91         fp = fopen(filename, "r");
  92         if (fp) {
  93                 while (fgets(temp, 128, fp)) {
  94                         key = 0;
  95                         while (key >= 0 && keys[key].label) {
  96                                 if ((p = strstr(temp, keys[key].label))) {
  97                                         p += strlen(keys[key].label);
  98                                         p += strspn(p, tokens);
  99                                         if ((i = strcspn(p, "#\n"))) p[i] = 0;
 100                                         free(*keys[key].var);
 101                                         *keys[key].var = strdup(p);
 102                                         key = -1;
 103                                 } else key++;
 104                         }
 105                 }
 106                 fclose(fp);
 107         }
 108 }
 109
 110
 111 /*******************************************************************************\
 112 |* GetXPM                                                                                                                                          *|
 113 \*******************************************************************************/
 114
 115 static void GetXPM(XpmIcon *wmgen, char *pixmap_bytes[]) {
 116
 117         XWindowAttributes       attributes;
 118         int                                     err;
 119
 120         /* For the colormap */
 121         XGetWindowAttributes(display, Root, &attributes);
 122
 123         wmgen->attributes.valuemask |= (XpmReturnPixels | XpmReturnExtensions);
 124
 125         err = XpmCreatePixmapFromData(display, Root, pixmap_bytes, &(wmgen->pixmap),
 126                                         &(wmgen->mask), &(wmgen->attributes));
 127
 128         if (err != XpmSuccess) {
 129                 fprintf(stderr, "Not enough free colorcells.\n");
 130                 exit(1);
 131         }
 132 }
 133
 134 /*******************************************************************************\
 135 |* GetColor                                                                                                                                        *|
 136 \*******************************************************************************/
 137
 138 static Pixel GetColor(char *name) {
 139
 140         XColor                          color;
 141         XWindowAttributes       attributes;
 142
 143         XGetWindowAttributes(display, Root, &attributes);
 144
 145         color.pixel = 0;
 146         if (!XParseColor(display, attributes.colormap, name, &color)) {
 147                 fprintf(stderr, "wm.app: can't parse %s.\n", name);
 148         } else if (!XAllocColor(display, attributes.colormap, &color)) {
 149                 fprintf(stderr, "wm.app: can't allocate %s.\n", name);
 150         }
 151         return color.pixel;
 152 }
 153
 154 /*******************************************************************************\
 155 |* flush_expose                                                                                                                            *|
 156 \*******************************************************************************/
 157
 158 static int flush_expose(Window w) {
 159
 160         XEvent          dummy;
 161         int                     i=0;
 162
 163         while (XCheckTypedWindowEvent(display, w, Expose, &dummy))
 164                 i++;
 165
 166         return i;
 167 }
 168
 169 /*******************************************************************************\
 170 |* RedrawWindow                                                                                                                            *|
 171 \*******************************************************************************/
 172
 173 void RedrawWindow(void) {
 174
 175         flush_expose(iconwin);
 176         XCopyArea(display, wmgen.pixmap, iconwin, NormalGC,
 177                                 0,0, wmgen.attributes.width, wmgen.attributes.height, 0,0);
 178         flush_expose(win);
 179         XCopyArea(display, wmgen.pixmap, win, NormalGC,
 180                                 0,0, wmgen.attributes.width, wmgen.attributes.height, 0,0);
 181 }
 182
 183 /*******************************************************************************\
 184 |* RedrawWindowXY                                                                                                                          *|
 185 \*******************************************************************************/
 186
 187 void RedrawWindowXY(int x, int y) {
 188
 189         flush_expose(iconwin);
 190         XCopyArea(display, wmgen.pixmap, iconwin, NormalGC,
 191                                 x,y, wmgen.attributes.width, wmgen.attributes.height, 0,0);
 192         flush_expose(win);
 193         XCopyArea(display, wmgen.pixmap, win, NormalGC,
 194                                 x,y, wmgen.attributes.width, wmgen.attributes.height, 0,0);
 195 }
 196
 197 /*******************************************************************************\
 198 |* AddMouseRegion                                                                                                                          *|
 199 \*******************************************************************************/
 200
 201 void AddMouseRegion(int index, int left, int top, int right, int bottom) {
 202
 203         if (index < MAX_MOUSE_REGION) {
 204                 mouse_region[index].enable = 1;
 205                 mouse_region[index].top = top;
 206                 mouse_region[index].left = left;
 207                 mouse_region[index].bottom = bottom;
 208                 mouse_region[index].right = right;
 209         }
 210 }
 211
 212 /*******************************************************************************\
 213 |* CheckMouseRegion                                                                                                                        *|
 214 \*******************************************************************************/
 215
 216 int CheckMouseRegion(int x, int y) {
 217
 218         int             i;
 219         int             found;
 220
 221         found = 0;
 222
 223         for (i=0; i<MAX_MOUSE_REGION && !found; i++) {
 224                 if (mouse_region[i].enable &&
 225                         x <= mouse_region[i].right &&
 226                         x >= mouse_region[i].left &&
 227                         y <= mouse_region[i].bottom &&
 228                         y >= mouse_region[i].top)
 229                         found = 1;
 230         }
 231         if (!found) return -1;
 232         return (i-1);
 233 }
 234
 235 /*******************************************************************************\
 236 |* copyXPMArea                                                                                                                             *|
 237 \*******************************************************************************/
 238
 239 void copyXPMArea(int x, int y, int sx, int sy, int dx, int dy) {
 240
 241         XCopyArea(display, wmgen.pixmap, wmgen.pixmap, NormalGC, x, y, sx, sy, dx, dy);
 242
 243 }
 244
 245 /*******************************************************************************\
 246 |* copyXBMArea                                                                                                                             *|
 247 \*******************************************************************************/
 248
 249 void copyXBMArea(int x, int y, int sx, int sy, int dx, int dy) {
 250
 251         XCopyArea(display, wmgen.mask, wmgen.pixmap, NormalGC, x, y, sx, sy, dx, dy);
 252 }
 253
 254
 255 /*******************************************************************************\
 256 |* setMaskXY                                                                                                                               *|
 257 \*******************************************************************************/
 258
 259 void setMaskXY(int x, int y) {
 260
 261          XShapeCombineMask(display, win, ShapeBounding, x, y, pixmask, ShapeSet);
 262          XShapeCombineMask(display, iconwin, ShapeBounding, x, y, pixmask, ShapeSet);
 263 }
 264
 265 /*******************************************************************************\
 266 |* openXwindow                                                                                                                             *|
 267 \*******************************************************************************/
 268 void openXwindow(int argc, char *argv[], char *pixmap_bytes[], char *pixmask_bits, int pixmask_width, int pixmask_height) {
 269
 270         unsigned int    borderwidth = 1;
 271         XClassHint              classHint;
 272         char                    *display_name = NULL;
 273         char                    *wname = argv[0];
 274         XTextProperty   name;
 275
 276         XGCValues               gcv;
 277         unsigned long   gcm;
 278
 279
 280         int                             dummy=0;
 281         int                             i;
 282
 283         for (i=1; argv[i]; i++) {
 284                 if (!strcmp(argv[i], "-display"))
 285                         display_name = argv[i+1];
 286         }
 287
 288         if (!(display = XOpenDisplay(display_name))) {
 289                 fprintf(stderr, "%s: can't open display %s\n",
 290                                                 wname, XDisplayName(display_name));
 291                 exit(1);
 292         }
 293         screen  = DefaultScreen(display);
 294         Root    = RootWindow(display, screen);
 295         d_depth = DefaultDepth(display, screen);
 296         x_fd    = XConnectionNumber(display);
 297
 298         /* Convert XPM to XImage */
 299         GetXPM(&wmgen, pixmap_bytes);
 300
 301         /* Create a window to hold the stuff */
 302         mysizehints.flags = USSize | USPosition;
 303         mysizehints.x = 0;
 304         mysizehints.y = 0;
 305
 306         back_pix = GetColor("white");
 307         fore_pix = GetColor("black");
 308
 309         XWMGeometry(display, screen, Geometry, NULL, borderwidth, &mysizehints,
 310                                 &mysizehints.x, &mysizehints.y,&mysizehints.width,&mysizehints.height, &dummy);
 311
 312         mysizehints.width = 64;
 313         mysizehints.height = 64;
 314
 315         win = XCreateSimpleWindow(display, Root, mysizehints.x, mysizehints.y,
 316                                 mysizehints.width, mysizehints.height, borderwidth, fore_pix, back_pix);
 317
 318         iconwin = XCreateSimpleWindow(display, win, mysizehints.x, mysizehints.y,
 319                                 mysizehints.width, mysizehints.height, borderwidth, fore_pix, back_pix);
 320
 321         /* Activate hints */
 322         XSetWMNormalHints(display, win, &mysizehints);
 323         classHint.res_name = wname;
 324         classHint.res_class = wname;
 325         XSetClassHint(display, win, &classHint);
 326
 327         XSelectInput(display, win, ButtonPressMask | ExposureMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask);
 328         XSelectInput(display, iconwin, ButtonPressMask | ExposureMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask);
 329
 330         if (XStringListToTextProperty(&wname, 1, &name) == 0) {
 331                 fprintf(stderr, "%s: can't allocate window name\n", wname);
 332                 exit(1);
 333         }
 334
 335         XSetWMName(display, win, &name);
 336
 337         /* Create GC for drawing */
 338
 339         gcm = GCForeground | GCBackground | GCGraphicsExposures;
 340         gcv.foreground = fore_pix;
 341         gcv.background = back_pix;
 342         gcv.graphics_exposures = 0;
 343         NormalGC = XCreateGC(display, Root, gcm, &gcv);
 344
 345         /* ONLYSHAPE ON */
 346
 347         pixmask = XCreateBitmapFromData(display, win, pixmask_bits, pixmask_width, pixmask_height);
 348
 349         XShapeCombineMask(display, win, ShapeBounding, 0, 0, pixmask, ShapeSet);
 350         XShapeCombineMask(display, iconwin, ShapeBounding, 0, 0, pixmask, ShapeSet);
 351
 352         /* ONLYSHAPE OFF */
 353
 354         mywmhints.initial_state = WithdrawnState;
 355         mywmhints.icon_window = iconwin;
 356         mywmhints.icon_x = mysizehints.x;
 357         mywmhints.icon_y = mysizehints.y;
 358         mywmhints.window_group = win;
 359         mywmhints.flags = StateHint | IconWindowHint | IconPositionHint | WindowGroupHint;
 360
 361         XSetWMHints(display, win, &mywmhints);
 362
 363         XSetCommand(display, win, argv, argc);
 364         XMapWindow(display, win);
 365
 366 }