wmpower/src/dockapp/dockapp.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 "dockapp.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 {
  60         int enable;
  61         int top;
  62         int bottom;
  63         int left;
  64         int right;
  65 } MOUSE_REGION;
  66
  67 #define MAX_MOUSE_REGION (8)
  68 MOUSE_REGION mouse_region[MAX_MOUSE_REGION];
  69
  70   /***********************/
  71  /* Function Prototypes */
  72 /***********************/
  73
  74 static void GetXPM(XpmIcon *, char **);
  75 static Pixel GetColor(char *);
  76 void RedrawWindow(void);
  77 void AddMouseRegion(unsigned, int, int, int, int);
  78 int CheckMouseRegion(int, int);
  79
  80 /*******************************************************************************\
  81 |* read_rc_file                                                                *|
  82 \*******************************************************************************/
  83
  84 void parse_rcfile(const char *filename, rckeys *keys)
  85 {
  86         char    *p;
  87         char    temp[128];
  88         char    *tokens = " :\t\n";
  89         FILE    *fp;
  90         int             i,key;
  91
  92         fp = fopen(filename, "r");
  93         if (fp) {
  94                 while (fgets(temp, 128, fp)) {
  95                         key = 0;
  96                         while (key >= 0 && keys[key].label) {
  97                                 if ((p = strstr(temp, keys[key].label))) {
  98                                         p += strlen(keys[key].label);
  99                                         p += strspn(p, tokens);
 100                                         if ((i = strcspn(p, "#\n"))) p[i] = 0;
 101                                         free(*keys[key].var);
 102                                         *keys[key].var = strdup(p);
 103                                         key = -1;
 104                                 } else key++;
 105                         }
 106                 }
 107                 fclose(fp);
 108         }
 109 }
 110
 111
 112 /*******************************************************************************\
 113 |* GetXPM                                                                      *|
 114 \*******************************************************************************/
 115
 116 static void GetXPM(XpmIcon *wmgen, char *pixmap_bytes[])
 117 {
 118         XWindowAttributes       attributes;
 119         int                                     err;
 120
 121         /* For the colormap */
 122         XGetWindowAttributes(display, Root, &attributes);
 123
 124         wmgen->attributes.valuemask |= (XpmReturnPixels | XpmReturnExtensions);
 125
 126         err = XpmCreatePixmapFromData(display, Root, pixmap_bytes, &(wmgen->pixmap),
 127                                         &(wmgen->mask), &(wmgen->attributes));
 128
 129         if (err != XpmSuccess) {
 130                 fprintf(stderr, "Not enough free colorcells.\n");
 131                 exit(1);
 132         }
 133 }
 134
 135 /*******************************************************************************\
 136 |* GetColor                                                                     *|
 137 \*******************************************************************************/
 138
 139 static Pixel GetColor(char *name)
 140 {
 141         XColor                          color;
 142         XWindowAttributes       attributes;
 143
 144         XGetWindowAttributes(display, Root, &attributes);
 145
 146         color.pixel = 0;
 147         if (!XParseColor(display, attributes.colormap, name, &color)) {
 148                 fprintf(stderr, "wm.app: can't parse %s.\n", name);
 149         } else if (!XAllocColor(display, attributes.colormap, &color)) {
 150                 fprintf(stderr, "wm.app: can't allocate %s.\n", name);
 151         }
 152         return color.pixel;
 153 }
 154
 155 /*******************************************************************************\
 156 |* flush_expose                                                                *|
 157 \*******************************************************************************/
 158
 159 static int flush_expose(Window w)
 160 {
 161         XEvent          dummy;
 162         int                     i=0;
 163
 164         while (XCheckTypedWindowEvent(display, w, Expose, &dummy))
 165                 i++;
 166
 167         return i;
 168 }
 169
 170 /*******************************************************************************\
 171 |* RedrawWindow                                                                *|
 172 \*******************************************************************************/
 173
 174 void RedrawWindow(void)
 175 {
 176         flush_expose(iconwin);
 177         XCopyArea(display, wmgen.pixmap, iconwin, NormalGC,
 178                                 0,0, wmgen.attributes.width, wmgen.attributes.height, 0,0);
 179         flush_expose(win);
 180         XCopyArea(display, wmgen.pixmap, win, NormalGC,
 181                                 0,0, wmgen.attributes.width, wmgen.attributes.height, 0,0);
 182 }
 183
 184 /*******************************************************************************\
 185 |* RedrawWindowXY                                                              *|
 186 \*******************************************************************************/
 187
 188 void RedrawWindowXY(int x, int y)
 189 {
 190         flush_expose(iconwin);
 191         XCopyArea(display, wmgen.pixmap, iconwin, NormalGC,
 192                                 x,y, wmgen.attributes.width, wmgen.attributes.height, 0,0);
 193         flush_expose(win);
 194         XCopyArea(display, wmgen.pixmap, win, NormalGC,
 195                                 x,y, wmgen.attributes.width, wmgen.attributes.height, 0,0);
 196 }
 197
 198 /*******************************************************************************\
 199 |* AddMouseRegion                                                              *|
 200 \*******************************************************************************/
 201
 202 void AddMouseRegion(unsigned index, int left, int top, int right, int bottom)
 203 {
 204         if (index < MAX_MOUSE_REGION)
 205         {
 206                 mouse_region[index].enable = 1;
 207                 mouse_region[index].top    = top;
 208                 mouse_region[index].left   = left;
 209                 mouse_region[index].bottom = bottom;
 210                 mouse_region[index].right  = right;
 211         }
 212 }
 213
 214 /*******************************************************************************\
 215 |* CheckMouseRegion                                                            *|
 216 \*******************************************************************************/
 217
 218 int CheckMouseRegion(int x, int y)
 219 {
 220         int             i;
 221         int             found;
 222
 223         found = 0;
 224
 225         for (i=0; i<MAX_MOUSE_REGION && !found; i++)
 226         {
 227                 if (mouse_region[i].enable       &&
 228                       x <= mouse_region[i].right   &&
 229                       x >= mouse_region[i].left    &&
 230                       y <= mouse_region[i].bottom  &&
 231                       y >= mouse_region[i].top)
 232                         found = 1;
 233         }
 234         if (!found) return -1;
 235         return (i-1);
 236 }
 237
 238 /*******************************************************************************\
 239 |* copyXPMArea                                                                 *|
 240 \*******************************************************************************/
 241
 242 void copyXPMArea(int x, int y, int sx, int sy, int dx, int dy)
 243 {
 244         XCopyArea(display, wmgen.pixmap, wmgen.pixmap, NormalGC, x, y, sx, sy, dx, dy);
 245 }
 246
 247 /*******************************************************************************\
 248 |* copyXBMArea                                                                 *|
 249 \*******************************************************************************/
 250
 251 void copyXBMArea(int x, int y, int sx, int sy, int dx, int dy)
 252 {
 253         XCopyArea(display, wmgen.mask, wmgen.pixmap, NormalGC, x, y, sx, sy, dx, dy);
 254 }
 255
 256
 257 /*******************************************************************************\
 258 |* setMaskXY                                                                   *|
 259 \*******************************************************************************/
 260
 261 void setMaskXY(int x, int y)
 262 {
 263          XShapeCombineMask(display, win, ShapeBounding, x, y, pixmask, ShapeSet);
 264          XShapeCombineMask(display, iconwin, ShapeBounding, x, y, pixmask, ShapeSet);
 265 }
 266
 267 /*******************************************************************************\
 268 |* openXwindow                                                                 *|
 269 \*******************************************************************************/
 270 void openXwindow(int argc, char *argv[], char *pixmap_bytes[], char *pixmask_bits, int pixmask_width, int pixmask_height)
 271 {
 272         unsigned int borderwidth = 1;
 273         XClassHint   classHint;
 274         char  *display_name = NULL;
 275         char  *wname        = argv[0];
 276         XTextProperty   name;
 277         XGCValues               gcv;
 278         unsigned long   gcm;
 279
 280         int                             dummy=0;
 281         int                             i;
 282
 283         for (i=1; argv[i]; i++)
 284         {
 285                 if (!strcmp(argv[i], "-display")) display_name = argv[i+1];
 286         }
 287
 288         if (!(display = XOpenDisplay(display_name)))
 289         {
 290                 fprintf(stderr, "%s: can't open display %s\n", 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         {
 332                 fprintf(stderr, "%s: can't allocate window name\n", wname);
 333                 exit(1);
 334         }
 335
 336         XSetWMName(display, win, &name);
 337
 338         /* Create GC for drawing */
 339
 340         gcm = GCForeground | GCBackground | GCGraphicsExposures;
 341         gcv.foreground = fore_pix;
 342         gcv.background = back_pix;
 343         gcv.graphics_exposures = 0;
 344         NormalGC = XCreateGC(display, Root, gcm, &gcv);
 345
 346         /* ONLYSHAPE ON */
 347
 348         pixmask = XCreateBitmapFromData(display, win, pixmask_bits, pixmask_width, pixmask_height);
 349
 350         XShapeCombineMask(display, win, ShapeBounding, 0, 0, pixmask, ShapeSet);
 351         XShapeCombineMask(display, iconwin, ShapeBounding, 0, 0, pixmask, ShapeSet);
 352
 353         /* ONLYSHAPE OFF */
 354
 355         mywmhints.initial_state = WithdrawnState;
 356         mywmhints.icon_window = iconwin;
 357         mywmhints.icon_x = mysizehints.x;
 358         mywmhints.icon_y = mysizehints.y;
 359         mywmhints.window_group = win;
 360         mywmhints.flags = StateHint | IconWindowHint | IconPositionHint | WindowGroupHint;
 361
 362         XSetWMHints(display, win, &mywmhints);
 363
 364         XSetCommand(display, win, argv, argc);
 365         XMapWindow(display, win);
 366 }