rspanel.c

   1
   2 /**********************************************************
   3  ** Rather Small Panel 0.8beta1 Copyright (c) 2006       **
   4  ** By Mikael Magnusson                                  **
   5  ** See file COPYING for license details.                **
   6  **********************************************************/
   7
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <time.h>
  11 #include <sys/time.h>
  12 #include <sys/types.h>
  13 #include <unistd.h>
  14
  15 #include <X11/Xlib.h>
  16 #include <X11/Xutil.h>
  17 #include <X11/Xatom.h>
  18 #include <iconv.h>
  19
  20 /* you can edit these */
  21 #define MAX_TASK_WIDTH 500
  22 #define ICONWIDTH 16
  23 #define ICONHEIGHT 16
  24 /* XXX get this from the font */
  25 #define WINHEIGHT 24
  26 #ifndef MIKACHU
  27 #        define WINWIDTH scr_width
  28 #else
  29 int WINWIDTH = 827;
  30 #endif
  31
  32 /* don't edit these */
  33 #define TEXTPAD 6
  34 #define GRILL_WIDTH 10
  35
  36 #include <openbox/render.h>
  37 #include <openbox/theme.h>
  38
  39 #include "rspanel.h"
  40
  41 Window rspanelwin;
  42 Display *dd;
  43 Window root_win;
  44 GC fore_gc;
  45 taskbar tb;
  46 int scr_screen;
  47 int scr_depth;
  48 int scr_width;
  49 int scr_height;
  50 int text_y;
  51 int pager_size;
  52
  53 RrInstance *inst;
  54 RrAppearance *background;
  55 RrAppearance *focused_task;
  56 RrAppearance *iconified_task;
  57 RrAppearance *unfocused_task;
  58 RrAppearance *normal_text;
  59 RrAppearance *iconified_text;
  60 RrAppearance *shaded_text;
  61 RrAppearance *focused_text;
  62 RrAppearance *a_icon;
  63
  64 /* we draw stuff to this guy then set him as a window
  65  * background pixmap, yay no flickering! */
  66 Pixmap bgpixmap;
  67
  68 char *atom_names[] = {
  69     /* clients */
  70     "KWM_WIN_ICON",
  71     "WM_STATE",
  72     "_MOTIF_WM_HINTS",
  73     "_NET_WM_STATE",
  74     "_NET_WM_STATE_SKIP_TASKBAR",
  75     "_NET_WM_STATE_SHADED",
  76     "_NET_WM_STATE_BELOW",
  77     "_NET_WM_STATE_HIDDEN",
  78     "_NET_WM_DESKTOP",
  79     "_NET_WM_WINDOW_TYPE",
  80     "_NET_WM_WINDOW_TYPE_DOCK",
  81     "_NET_WM_STRUT",
  82     "_WIN_HINTS",
  83     /* root */
  84     "_NET_CLIENT_LIST",
  85     "_NET_CLIENT_LIST_STACKING",
  86     "_NET_NUMBER_OF_DESKTOPS",
  87     "_NET_CURRENT_DESKTOP",
  88     "_OB_WM_ACTION",
  89     "_NET_WM_NAME",
  90     "UTF8_STRING",
  91     "_NET_ACTIVE_WINDOW",
  92     "_NET_RESTACK_WINDOW",
  93     "_OB_FOCUS",
  94     "_NET_WM_ICON_GEOMETRY",
  95     "_NET_WM_ICON",
  96 };
  97
  98 typedef enum {
  99 KWM_WIN_ICON,
 100 WM_STATE,
 101 _MOTIF_WM_HINTS,
 102 _NET_WM_STATE,
 103 _NET_WM_STATE_SKIP_TASKBAR,
 104 _NET_WM_STATE_SHADED,
 105 _NET_WM_STATE_BELOW,
 106 _NET_WM_STATE_HIDDEN,
 107 _NET_WM_DESKTOP,
 108 _NET_WM_WINDOW_TYPE,
 109 _NET_WM_WINDOW_TYPE_DOCK,
 110 _NET_WM_STRUT,
 111 _WIN_HINTS,
 112 _NET_CLIENT_LIST,
 113 _NET_CLIENT_LIST_STACKING,
 114 _NET_NUMBER_OF_DESKTOPS,
 115 _NET_CURRENT_DESKTOP,
 116 _OB_WM_ACTION,
 117 _NET_WM_NAME,
 118 STRING_UTF8,
 119 _NET_ACTIVE_WINDOW,
 120 _NET_RESTACK_WINDOW,
 121 _OB_FOCUS,
 122 _NET_WM_ICON_GEOMETRY,
 123 _NET_WM_ICON,
 124 ATOM_COUNT,
 125 } atom_t;
 126
 127 Atom atoms[ATOM_COUNT];
 128
 129 enum {
 130     REMOVE = 0,
 131     ADD,
 132     TOGGLE
 133 };
 134
 135 static void *get_prop_data(Window win, Atom prop, Atom type, int *items)
 136 {
 137     Atom type_ret;
 138     int format_ret;
 139     unsigned long items_ret;
 140     unsigned long after_ret;
 141     unsigned char *prop_data;
 142
 143     prop_data = 0;
 144
 145     XGetWindowProperty(dd, win, prop, 0, 0x7fffffff, False, type, &type_ret,
 146                        &format_ret, &items_ret, &after_ret, &prop_data);
 147     if (items)
 148         *items = items_ret;
 149
 150     return prop_data;
 151 }
 152
 153 static int generic_get_int(Window win, Atom at)
 154 {
 155     int num = 0;
 156     unsigned long *data;
 157
 158     data = get_prop_data(win, at, XA_CARDINAL, 0);
 159     if (data) {
 160         num = *data;
 161         XFree(data);
 162     }
 163     return num;
 164 }
 165
 166 static int find_desktop(Window win)
 167 {
 168     return generic_get_int(win, atoms[_NET_WM_DESKTOP]);
 169 }
 170
 171 static int find_state(Window win, atom_t atom)
 172 {
 173     unsigned long *data;
 174     int ret = 0;
 175     int num;
 176
 177     data = get_prop_data(win, atoms[_NET_WM_STATE], XA_ATOM, &num);
 178     if (data) {
 179         while (num--) {
 180             if ((data[num]) == atoms[atom])
 181                 ret = 1;
 182         }
 183         XFree(data);
 184     }
 185     return ret;
 186 }
 187
 188 /* this naming is very confusing :) */
 189 static int is_hidden(Window win)
 190 {
 191     return find_state(win, _NET_WM_STATE_SKIP_TASKBAR);
 192 }
 193
 194 static int is_iconified(Window win)
 195 {
 196     return find_state(win, _NET_WM_STATE_HIDDEN);
 197 }
 198
 199 static int is_shaded(Window win)
 200 {
 201     return find_state(win, _NET_WM_STATE_SHADED);
 202 }
 203
 204 static int get_current_desktop(void)
 205 {
 206     return generic_get_int(root_win, atoms[_NET_CURRENT_DESKTOP]);
 207 }
 208
 209 #ifdef PAGER
 210 static int get_number_of_desktops(void)
 211 {
 212     return generic_get_int(root_win, atoms[_NET_NUMBER_OF_DESKTOPS]);
 213 }
 214 #endif
 215
 216 static void free_icons(task *tk)
 217 {
 218     unsigned int i;
 219
 220     for (i = 0; i < tk->nicons; ++i)
 221         free(tk->icons[i].data);
 222     if (tk->nicons > 0)
 223         free(tk->icons);
 224     tk->nicons = 0;
 225 }
 226
 227 static void task_update_icon(task *tk)
 228 {
 229     /* these bits are borrowed from openbox' client.c::client_update_icons */
 230     unsigned int num;
 231     RrPixel32 *data;
 232     unsigned int w, h, i, j;
 233
 234     free_icons(tk);
 235
 236     data = get_prop_data(tk->win, atoms[_NET_WM_ICON], XA_CARDINAL, &num);
 237     if (num) {
 238         /* figure out how many valid icons are in here */
 239         i = 0;
 240         while (num - i > 2) {
 241             w = data[i++];
 242             h = data[i++];
 243             i += w * h;
 244             if (i > num || w*h == 0) break;
 245             ++tk->nicons;
 246         }
 247
 248         tk->icons = calloc(tk->nicons, sizeof(icon));
 249
 250         /* store the icons */
 251         i = 0;
 252         for (j = 0; j < tk->nicons; ++j) {
 253             guint x, y, t;
 254
 255             w = tk->icons[j].width = data[i++];
 256             h = tk->icons[j].height = data[i++];
 257
 258             if (w*h == 0) continue;
 259
 260             tk->icons[j].data = g_new(RrPixel32, w * h);
 261             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
 262                 if (x >= w) {
 263                     x = 0;
 264                     ++y;
 265                 }
 266                 tk->icons[j].data[t] =
 267                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
 268                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
 269                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
 270                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
 271             }
 272             g_assert(i <= num);
 273         }
 274
 275         g_free(data);
 276     } else {
 277         XWMHints *hints;
 278
 279         if ((hints = XGetWMHints(dd, tk->win))) {
 280             if (hints->flags & IconPixmapHint) {
 281                 tk->nicons++;
 282                 tk->icons = g_new(icon, tk->nicons);
 283 //                xerror_set_ignore(TRUE);
 284                 if (!RrPixmapToRGBA(inst,
 285                                     hints->icon_pixmap,
 286                                     (hints->flags & IconMaskHint ?
 287                                      hints->icon_mask : None),
 288                                     &tk->icons[tk->nicons-1].width,
 289                                     &tk->icons[tk->nicons-1].height,
 290                                     &tk->icons[tk->nicons-1].data)){
 291                     g_free(&tk->icons[tk->nicons-1]);
 292                     tk->nicons--;
 293                 }
 294 //                xerror_set_ignore(FALSE);
 295             }
 296             XFree(hints);
 297         }
 298     }
 299 }
 300
 301 static void add_task(Window win, int focus)
 302 {
 303     task *tk, *list;
 304     int desk;
 305
 306     if (win == tb.win)
 307         return;
 308
 309     /* is this window on a different desktop? */
 310     /* XXX add even if is_hidden, but don't show it later, so we can
 311      * unhide it when the prop is removed */
 312     desk = find_desktop(win);
 313     if ((desk != 0xffffffff && tb.my_desktop != desk))
 314         return;
 315
 316     XSelectInput(dd, win, PropertyChangeMask | StructureNotifyMask);
 317
 318     tk = calloc(1, sizeof(task));
 319     tk->win = win;
 320     tk->focused = focus;
 321     tk->name = get_prop_data(tk->win, atoms[_NET_WM_NAME], atoms[STRING_UTF8], 0) ?:
 322                get_prop_data(tk->win, XA_WM_NAME, XA_STRING, 0);
 323     /* XXX use this? */
 324     //tk->locale = get_prop_data(win, XA_WM_LOCALE_NAME, XA_STRING, 0);
 325     tk->iconified = is_iconified(win);
 326     tk->shaded = is_shaded(win);
 327     tk->hidden = is_hidden(win);
 328     task_update_icon(tk);
 329
 330     /* now append it to our linked list */
 331
 332     list = tb.task_list;
 333     if (!list) {
 334         tb.task_list = tk;
 335         return;
 336     }
 337     while (1) {
 338         if (!list->next) {
 339             list->next = tk;
 340             return;
 341         }
 342         list = list->next;
 343     }
 344 }
 345
 346 static void set_prop(Window win, Atom at, Atom type, long val)
 347 {
 348     XChangeProperty(dd, win, at, type, 32,
 349                     PropModeReplace, (unsigned char *)&val, 1);
 350 }
 351
 352 static Window gui_create_taskbar(void)
 353 {
 354     Window win;
 355     XSizeHints size_hints;
 356     XSetWindowAttributes att;
 357     XClassHint xclhints;
 358
 359     att.event_mask = ButtonPressMask;
 360
 361     tb.x = 0;
 362     tb.y = scr_height - WINHEIGHT;
 363
 364     win = rspanelwin = XCreateWindow(/* display  */ dd,
 365                                      /* parent   */ root_win,
 366                                      /* x        */ tb.x,
 367                                      /* y        */ tb.y,
 368 /* XXX Maybe just use scr_width here? */
 369                                      /* width    */ WINWIDTH,
 370                                      /* height   */ WINHEIGHT,
 371                                      /* border   */ 0,
 372                                      /* depth    */ CopyFromParent,
 373                                      /* class    */ InputOutput,
 374                                      /* visual   */ CopyFromParent,
 375                                      /*value mask*/ CWEventMask,
 376                                      /* attribs  */ &att);
 377
 378     /* reside on ALL desktops */
 379     set_prop(win, atoms[_NET_WM_DESKTOP], XA_CARDINAL, 0xFFFFFFFF);
 380     set_prop(win, atoms[_NET_WM_WINDOW_TYPE], XA_ATOM,
 381              atoms[_NET_WM_WINDOW_TYPE_DOCK]);
 382     set_prop(win, atoms[_NET_WM_STATE], XA_ATOM, atoms[_NET_WM_STATE_BELOW]);
 383     XChangeProperty(dd, win, XA_WM_NAME, XA_STRING, 8, PropModeReplace,
 384                     (unsigned char *)"rspanel", 7);
 385
 386     /* make sure the WM obays our window position */
 387     size_hints.flags = PPosition;
 388     /*XSetWMNormalHints (dd, win, &size_hints); */
 389     XChangeProperty(dd, win, XA_WM_NORMAL_HINTS, XA_WM_SIZE_HINTS, 32,
 390                     PropModeReplace, (unsigned char *)&size_hints,
 391                     sizeof(XSizeHints) / 4);
 392
 393     xclhints.res_name = "rspanel";
 394     xclhints.res_class = "RSPanel";
 395     XSetClassHint(dd, win, &xclhints);
 396
 397     XMapWindow(dd, win);
 398
 399     return win;
 400 }
 401
 402 static void gui_init(void)
 403 {
 404     XGCValues gcv;
 405
 406     gcv.graphics_exposures = False;
 407
 408     fore_gc = XCreateGC(dd, root_win, GCGraphicsExposures, &gcv);
 409
 410     inst = RrInstanceNew(dd, scr_screen);
 411     background = RrAppearanceNew(inst, 0);
 412     focused_task = RrAppearanceNew(inst, 0);
 413     unfocused_task = RrAppearanceNew(inst, 0);
 414     normal_text = RrAppearanceNew(inst, 1);
 415     a_icon = RrAppearanceNew(inst, 1);
 416
 417     a_icon->surface.grad = RR_SURFACE_PARENTREL;
 418
 419     background->surface.grad = RR_SURFACE_DIAGONAL;
 420     background->surface.primary = RrColorNew(inst, 170, 170, 190);
 421     background->surface.secondary = RrColorNew(inst, 100, 100, 160);
 422
 423     unfocused_task->surface.parent = background;
 424     unfocused_task->surface.grad = RR_SURFACE_PARENTREL;
 425     unfocused_task->surface.border = RR_SURFACE_PARENTREL;
 426     unfocused_task->surface.border_color = RrColorNew(inst, 0, 0, 0);
 427
 428     iconified_task = RrAppearanceCopy(unfocused_task);
 429     iconified_task->surface.relief = RR_RELIEF_SUNKEN;
 430     iconified_task->surface.parent = background;
 431
 432     focused_task->surface.parent = background;
 433     focused_task->surface.grad = RR_SURFACE_CROSS_DIAGONAL;
 434     focused_task->surface.secondary = RrColorNew(inst, 70, 80, 110);
 435     focused_task->surface.primary = RrColorNew(inst, 130, 160, 250);
 436     focused_task->surface.relief = RR_RELIEF_RAISED;
 437
 438     normal_text->surface.grad = RR_SURFACE_PARENTREL;
 439     normal_text->texture[0].type = RR_TEXTURE_TEXT;
 440     normal_text->texture[0].data.text.font
 441         = RrFontOpen(inst, "Candara, sans", 10, RR_FONTWEIGHT_NORMAL, RR_FONTSLANT_NORMAL);
 442     normal_text->texture[0].data.text.justify = RR_JUSTIFY_LEFT;
 443     normal_text->texture[0].data.text.ellipsize = RR_ELLIPSIZE_END;
 444
 445     iconified_text = RrAppearanceCopy(normal_text);
 446     normal_text->texture[0].data.text.color = RrColorNew(inst, 20, 20, 40);
 447     focused_text = RrAppearanceCopy(normal_text);
 448     iconified_text->texture[0].data.text.shadow_offset_x = 2;
 449     iconified_text->texture[0].data.text.shadow_offset_y = 2;
 450     iconified_text->texture[0].data.text.shadow_alpha = 100;
 451     iconified_text->texture[0].data.text.shadow_color = RrColorNew(inst, 0, 0, 0);
 452     shaded_text = RrAppearanceCopy(normal_text);
 453     shaded_text->texture[0].data.text.color = RrColorNew(inst, 50, 60, 90);
 454     iconified_text->texture[0].data.text.color = RrColorNew(inst, 200, 200, 200);
 455     focused_text->texture[0].data.text.color = RrColorNew(inst, 230, 230, 255);
 456 }
 457
 458 const icon* best_task_icon(task *tk, gint w, gint h)
 459 {
 460     static icon deficon;
 461     guint i;
 462     gulong min_diff, min_i;
 463
 464     min_diff = ABS(tk->icons[0].width - w) + ABS(tk->icons[0].height - h);
 465     min_i = 0;
 466
 467     for (i = 1; i < tk->nicons; ++i) {
 468         gulong diff;
 469
 470         diff = ABS(tk->icons[i].width - w) + ABS(tk->icons[i].height - h);
 471         if (diff < min_diff) {
 472             min_diff = diff;
 473             min_i = i;
 474         }
 475     }
 476     return &tk->icons[min_i];
 477 }
 478
 479 #define PADDING 2
 480 #define ICON_SIZE WINHEIGHT-2*PADDING
 481 static void gui_draw_task(task *tk, int redraw)
 482 {
 483     RrAppearance *a;
 484     RrAppearance *b;
 485     const icon *i;
 486
 487     if (tk->iconified)
 488         b = iconified_task;
 489     else if (tk->focused)
 490         b = focused_task;
 491     else if (tk->shaded)
 492         b = iconified_task;
 493     else
 494         b = unfocused_task;
 495
 496     if (tk->iconified)
 497         a = iconified_text;
 498     else if (tk->shaded)
 499         a = shaded_text;
 500     else if (tk->focused)
 501         a = focused_text;
 502     else
 503         a = normal_text;
 504
 505     i = best_task_icon(tk, ICON_SIZE, ICON_SIZE);
 506
 507     if (i) {
 508         RrTexture *c = &a_icon->texture[0];
 509         RrTextureRGBA *d = &c->data.rgba;
 510         c->type = RR_TEXTURE_RGBA;
 511         a_icon->surface.parent = b;
 512         a_icon->surface.parentx = PADDING;
 513         a_icon->surface.parenty = PADDING;
 514         d->width = i->width;
 515         d->height = i->height;
 516         d->alpha = tk->iconified ? 0x80 : tk->shaded ? 0xB0 : 0xff;
 517         d->data = i->data;
 518     }
 519
 520     a->surface.parent = b;
 521     a->surface.parentx = ICON_SIZE+2*PADDING;
 522     a->texture[0].data.text.string = tk->name;
 523     b->surface.parentx = tk->pos_x;
 524
 525     RrPaintPixmap(b, tk->width, WINHEIGHT);
 526     RrPaintPixmap(a, tk->width-3*PADDING-ICON_SIZE, WINHEIGHT);
 527     RrPaintPixmap(a_icon, ICON_SIZE, ICON_SIZE);
 528
 529     XCopyArea(dd, a_icon->pixmap, b->pixmap, fore_gc, 0, 0,
 530               ICON_SIZE, ICON_SIZE, PADDING, PADDING);
 531     XCopyArea(dd, a->pixmap, b->pixmap, fore_gc, 0, 0,
 532               tk->width-3*PADDING-ICON_SIZE, WINHEIGHT, ICON_SIZE+2*PADDING, 0);
 533     XCopyArea(dd, b->pixmap, bgpixmap, fore_gc, 0, 0,
 534               tk->width, WINHEIGHT, tk->pos_x, 0);
 535
 536     a_icon->texture[1].type = RR_TEXTURE_NONE;
 537     XFreePixmap(dd, a->pixmap);
 538     XFreePixmap(dd, b->pixmap);
 539     XFreePixmap(dd, a_icon->pixmap);
 540     if (redraw) {
 541         XSetWindowBackgroundPixmap(dd, tb.win, bgpixmap);
 542         XClearWindow(dd, tb.win);
 543     }
 544 }
 545
 546 static void netwm_action(Window win, atom_t atom, Time time, long l)
 547 {
 548     XClientMessageEvent xev = {
 549     .type = ClientMessage,
 550     .window = win,
 551     .format = 32,
 552     .data.l = {0},
 553     .message_type = atoms[atom]
 554     };
 555
 556     if (atom == _NET_ACTIVE_WINDOW) {
 557         xev.data.l[0] = 2;
 558         xev.data.l[1] = time;
 559         xev.data.l[2] = 0;
 560     } else if (atom == _NET_CURRENT_DESKTOP) {
 561         xev.data.l[0] = l;
 562         xev.data.l[1] = time;
 563     } else if (atom == _NET_RESTACK_WINDOW) {
 564         xev.data.l[0] = 2;
 565         xev.data.l[2] = l;
 566     } else if (atom == _OB_FOCUS) {
 567     } else {
 568         xev.message_type = atoms[_NET_WM_STATE];
 569         xev.data.l[0] = l;
 570         xev.data.l[1] = atoms[atom];
 571         xev.data.l[3] = 2;
 572     }
 573
 574     XSendEvent(dd, root_win, False, SubstructureNotifyMask
 575                |SubstructureRedirectMask, (XEvent *)&xev);
 576 }
 577
 578 static void set_icon_geometry(task *tk)
 579 {
 580     long coords[4];
 581
 582     coords[0] = tb.x + tk->pos_x;
 583     coords[1] = tb.y;
 584     coords[2] = MAX(tk->width, 1);
 585     coords[3] = WINHEIGHT;
 586
 587     XChangeProperty(dd, tk->win,
 588                     atoms[_NET_WM_ICON_GEOMETRY], XA_CARDINAL,
 589                     32, PropModeReplace, (unsigned char*) &coords, 4);
 590 }
 591
 592
 593 #ifdef PAGER
 594
 595 static void switch_desk(int new_desk, Time time)
 596 {
 597     if (get_number_of_desktops() <= new_desk)
 598         return;
 599
 600     netwm_action(None, _NET_CURRENT_DESKTOP, time, new_desk);
 601 }
 602
 603 /* This doesn't work with obrender yet */
 604 static void pager_draw_button(int x, int num)
 605 {
 606     char label;
 607 #ifdef XFT
 608     XftColor col;
 609 #endif
 610
 611     if (num == tb.my_desktop) {
 612         /* current desktop */
 613         draw_box(x, PAGER_BUTTON_WIDTH);
 614     } else {
 615         set_foreground(0);
 616         fill_rect(x, 1, PAGER_BUTTON_WIDTH + 1, WINHEIGHT - 2);
 617     }
 618
 619     label = '1' + num;
 620
 621 #ifdef XFT
 622     col.color.alpha = 0xffff;
 623     col.color.red = cols[5].red;
 624     col.color.green = cols[5].green;
 625     col.color.blue = cols[5].blue;
 626     XftDrawString8(xftdraw, &col, xfs,
 627                    x + ((PAGER_BUTTON_WIDTH - PAGER_DIGIT_WIDTH) / 2), text_y,
 628                    &label, 1);
 629 #else
 630     set_foreground(5);
 631     XDrawString(dd, tb.win, fore_gc,
 632                 x + ((PAGER_BUTTON_WIDTH - PAGER_DIGIT_WIDTH) / 2) - 1,
 633                 text_y, &label, 1);
 634 #endif
 635 }
 636
 637 static void pager_draw(void)
 638 {
 639     int desks, i, x = GRILL_WIDTH;
 640
 641     desks = get_number_of_desktops();
 642
 643     for (i = 0; i < desks; i++) {
 644         pager_draw_button(x, i);
 645         if (i > 8)
 646             break;
 647         x += PAGER_BUTTON_WIDTH;
 648     }
 649
 650     pager_size = x;
 651 }
 652
 653 #endif
 654
 655 static inline int dont_show_task(task *tk)
 656 {
 657     return !tk->focused && tk->hidden;
 658 }
 659
 660 static void gui_draw_taskbar(void)
 661 {
 662     task *tk;
 663     int x, width, taskw;
 664     int num_tasks = 0;
 665
 666 #ifdef PAGER
 667     pager_draw();
 668 #else
 669     pager_size = TEXTPAD;
 670 #endif
 671
 672     x = pager_size + 2;
 673     width = WINWIDTH - (pager_size + GRILL_WIDTH);
 674 #warning only rerender if width changed!
 675     if (bgpixmap) XFreePixmap(dd, bgpixmap);
 676     bgpixmap = XCreatePixmap(dd, root_win, WINWIDTH, WINHEIGHT, RrDepth(inst));
 677
 678     XFreePixmap(dd, RrPaintPixmap(background, WINWIDTH, WINHEIGHT));
 679     XCopyArea(dd, background->pixmap, bgpixmap, fore_gc, 0, 0, WINWIDTH, WINHEIGHT, 0, 0);
 680
 681     /* find the number of visible tasks */
 682     for (tk = tb.task_list; tk; tk = tk->next) {
 683         if (dont_show_task(tk))
 684             continue;
 685         num_tasks++;
 686     }
 687
 688     if (num_tasks == 0)
 689         goto clear;
 690
 691     taskw = width / num_tasks;
 692     if (taskw > MAX_TASK_WIDTH)
 693         taskw = MAX_TASK_WIDTH;
 694
 695     for (tk = tb.task_list; tk; tk = tk->next) {
 696         if (dont_show_task(tk))
 697             continue;
 698         tk->pos_x = x;
 699         tk->width = taskw - 1;
 700         gui_draw_task(tk, FALSE);
 701         set_icon_geometry(tk);
 702         x += taskw;
 703     }
 704
 705 clear:
 706     XSetWindowBackgroundPixmap(dd, tb.win, bgpixmap);
 707     XClearWindow(dd, tb.win);
 708 }
 709
 710 static task *find_task(Window win)
 711 {
 712     task *list = tb.task_list;
 713     while (list) {
 714         if (list->win == win)
 715             return list;
 716         list = list->next;
 717     }
 718     return 0;
 719 }
 720
 721 static void del_task(Window win)
 722 {
 723     task *next, *prev = 0, *list = tb.task_list;
 724
 725     while (list) {
 726         next = list->next;
 727         if (list->win == win) {
 728             /* unlink and free this task */
 729             free_icons(list);
 730             if (list->name)
 731                 XFree(list->name);
 732             free(list);
 733             if (prev == 0)
 734                 tb.task_list = next;
 735             else
 736                 prev->next = next;
 737             return;
 738         }
 739         prev = list;
 740         list = next;
 741     }
 742 }
 743
 744 static void move_taskbar(void)
 745 {
 746     tb.x = tb.y = 0;
 747
 748     if (tb.hidden)
 749         tb.x = TEXTPAD - WINWIDTH;
 750
 751     if (!tb.at_top)
 752         tb.y = scr_height - WINHEIGHT;
 753
 754     XMoveWindow(dd, tb.win, tb.x, tb.y);
 755 }
 756
 757 static void taskbar_read_clientlist(void)
 758 {
 759     Window *win, focus_win = 0;
 760     int num, i, desk, new_desk = 0;
 761     task *list, *next;
 762     desk = get_current_desktop();
 763
 764 #ifdef MIKACHU
 765     if (desk == 0)
 766         WINWIDTH = 827;
 767     else
 768         WINWIDTH = 1280;
 769
 770     XResizeWindow(dd, rspanelwin, WINWIDTH, WINHEIGHT);
 771 #endif
 772
 773     if (desk != tb.my_desktop) {
 774         new_desk = 1;
 775         tb.my_desktop = desk;
 776     }
 777
 778     win = get_prop_data(root_win, atoms[_NET_ACTIVE_WINDOW], XA_WINDOW, &num);
 779     if (win && num > 0) {
 780         focus_win = win[0];
 781         XFree(win);
 782     }
 783
 784     win = get_prop_data(root_win, atoms[_NET_CLIENT_LIST], XA_WINDOW, &num);
 785     if (!win)
 786         return;
 787
 788     /* remove windows that arn't in the _NET_CLIENT_LIST anymore */
 789     list = tb.task_list;
 790     while (list) {
 791         list->focused = (focus_win == list->win);
 792         next = list->next;
 793
 794         if (!new_desk)
 795             for (i = num - 1; i >= 0; i--)
 796                 if (list->win == win[i])
 797                     goto dontdel;
 798         del_task(list->win);
 799 dontdel:
 800
 801         list = next;
 802     }
 803
 804     /* add any new windows */
 805     for (i = 0; i < num; i++) {
 806         if (!find_task(win[i]))
 807             add_task(win[i], (win[i] == focus_win));
 808     }
 809
 810     XFree(win);
 811 }
 812
 813 static void handle_press(int x, int y, int button, Time time)
 814 {
 815     task *tk;
 816
 817 #ifdef PAGER
 818     if ((y > 2 && y < WINHEIGHT - 2 && x > GRILL_WIDTH) && button == 1)
 819         switch_desk((x - GRILL_WIDTH) / PAGER_BUTTON_WIDTH, time);
 820     else
 821 #endif
 822     /* clicked left grill */
 823     if (x < 6) {
 824         if (button == 1) {
 825             tb.at_top = 1 - tb.at_top;
 826             move_taskbar();
 827         } else if (button == 4) {
 828             tb.hidden = 1;
 829             move_taskbar();
 830         }
 831     }
 832
 833     /* clicked right grill */
 834     else if (x + TEXTPAD > WINWIDTH) {
 835         if (tb.hidden && (button == 1 || button == 5)) {
 836             tb.hidden = 0;
 837             move_taskbar();
 838         } else if (!tb.hidden && (button == 1 || button == 4)) {
 839             tb.hidden = 1;
 840             move_taskbar();
 841         }
 842     } else {
 843         tk = tb.task_list;
 844         while (tk) {
 845             /* clicked on a task button */
 846             /* XXX Make this configureable */
 847             if (!dont_show_task(tk)
 848                 && (x > tk->pos_x && x < tk->pos_x + tk->width))
 849             {
 850                 switch (button) {
 851                 case 1:
 852                     netwm_action(tk->win, _NET_ACTIVE_WINDOW, time, 0);
 853                     break;
 854                 case 2:
 855                     if (tk->iconified)
 856                         netwm_action(tk->win, _NET_WM_STATE_HIDDEN, time, REMOVE);
 857                     else
 858                         netwm_action(tk->win, _NET_WM_STATE_HIDDEN, time, ADD);
 859                     break;
 860                 case 3:
 861                     netwm_action(tk->win, _NET_RESTACK_WINDOW, time, Opposite);
 862                     break;
 863                 case 4:
 864                     if (is_shaded(tk->win))
 865                             netwm_action(tk->win, _NET_RESTACK_WINDOW, time, Below);
 866                     else
 867                             netwm_action(tk->win, _NET_WM_STATE_SHADED, time, ADD);
 868                     break;
 869                 case 5:
 870                     if (is_shaded(tk->win))
 871                         netwm_action(tk->win, _NET_WM_STATE_SHADED, time, REMOVE);
 872                     else
 873                             netwm_action(tk->win, _NET_RESTACK_WINDOW, time, Above);
 874                     break;
 875                 case 9:
 876                     if (tk->iconified)
 877                         netwm_action(tk->win, _NET_WM_STATE_HIDDEN, time, REMOVE);
 878                     else
 879                         netwm_action(tk->win, _OB_FOCUS, 0, 0);
 880                     break;
 881                 case 6:
 882                     netwm_action(tk->win, _NET_RESTACK_WINDOW, time, Below);
 883                     break;
 884                 case 7:
 885                     netwm_action(tk->win, _NET_RESTACK_WINDOW, time, Above);
 886                     break;
 887                 }
 888                 return;
 889             }
 890             tk = tk->next;
 891         } /* clicked on the background */
 892         switch (button) {
 893         case 1:
 894             netwm_action(tb.win, _NET_RESTACK_WINDOW, time, Above);
 895             break;
 896         case 2:
 897             netwm_action(tb.win, _NET_RESTACK_WINDOW, time, Below);
 898             break;
 899         case 3:
 900             netwm_action(tb.win, _NET_RESTACK_WINDOW, time, Opposite);
 901             break;
 902         case 4:
 903             tb.hidden = 1;
 904             move_taskbar();
 905             break;
 906         case 5:
 907             tb.hidden = 0;
 908             move_taskbar();
 909             break;
 910         }
 911     }
 912 }
 913
 914 #if 0
 915 static void handle_focusin(Window win)
 916 {
 917     task *tk;
 918
 919     tk = tb.task_list;
 920     while (tk) {
 921         if (tk->focused) {
 922             if (tk->win != win) {
 923                 tk->focused = 0;
 924                 gui_draw_task(tk);
 925             }
 926         } else {
 927             if (tk->win == win) {
 928                 tk->focused = 1;
 929                 gui_draw_task(tk);
 930             }
 931         }
 932         tk = tk->next;
 933     }
 934 }
 935 #endif
 936
 937 static Bool look_for_duplicate_property(Display *d, XEvent *e, XPointer arg)
 938 {
 939     Atom at = *(Atom*)arg;
 940     return (e->type == PropertyNotify && e->xproperty.atom == at);
 941 }
 942
 943 static void handle_propertynotify(Window win, Atom at)
 944 {
 945     task *tk;
 946
 947     if (win == root_win) {
 948         /* XXX only redraw the task that got focused/unfocused
 949          * when _NET_ACTIVE_WINDOW triggers this,
 950          * redraw everything if that task was hidden before though */
 951         if (at == atoms[_NET_CLIENT_LIST] || at == atoms[_NET_CURRENT_DESKTOP]
 952             || at == atoms[_NET_ACTIVE_WINDOW])
 953         {
 954             XEvent ce;
 955             Atom check;
 956
 957             check = atoms[_NET_CLIENT_LIST];
 958             while (XCheckIfEvent(dd, &ce, look_for_duplicate_property, (XPointer)&check));
 959             check = atoms[_NET_CURRENT_DESKTOP];
 960             while (XCheckIfEvent(dd, &ce, look_for_duplicate_property, (XPointer)&check));
 961             check = atoms[_NET_ACTIVE_WINDOW];
 962             while (XCheckIfEvent(dd, &ce, look_for_duplicate_property, (XPointer)&check));
 963
 964             taskbar_read_clientlist();
 965             gui_draw_taskbar();
 966         }
 967         return;
 968     }
 969
 970     /* XXX make this work when SKIP_TASKBAR is toggled too */
 971     /* show skip_taskbar tasks if they're focused */
 972     tk = find_task(win);
 973     if (!tk)
 974         return;
 975
 976     if (at == XA_WM_NAME || at == atoms[_NET_WM_NAME]) {
 977         /* window's title changed */
 978         /* XXX make a function for this and use from here and add_task */
 979         char *newname;
 980         newname = get_prop_data(tk->win, atoms[_NET_WM_NAME], atoms[STRING_UTF8], 0) ?:
 981                   get_prop_data(tk->win, XA_WM_NAME, XA_STRING, 0);
 982         if (newname) {
 983             /* It didn't change */
 984             if (tk->name && !strcmp(newname, tk->name)) {
 985                 XFree(newname);
 986                 return;
 987             }
 988         }
 989         if (tk->name)
 990             XFree(tk->name);
 991         tk->name = newname;
 992         gui_draw_task(tk, TRUE);
 993     } else if (at == atoms[_NET_WM_ICON]) {
 994         task_update_icon(tk);
 995         gui_draw_task(tk, TRUE);
 996     } else if (at == atoms[_NET_WM_STATE]) {
 997         /* iconified state changed? */
 998         if (is_iconified(tk->win) != tk->iconified) {
 999             tk->iconified = !tk->iconified;
1000             if (!tk->hidden)
1001                 gui_draw_task(tk, TRUE);
1002         }
1003         /* shaded state changed? */
1004         if (is_shaded(tk->win) != tk->shaded) {
1005             tk->shaded = !tk->shaded;
1006             gui_draw_task(tk, TRUE);
1007         }
1008         if (is_hidden(tk->win) != tk->hidden) {
1009             tk->hidden = !tk->hidden;
1010             gui_draw_taskbar();
1011         }
1012     } else if (at == atoms[_NET_WM_DESKTOP]) {
1013         if (find_desktop(win) != get_current_desktop())
1014             del_task(tk->win);
1015     }
1016 }
1017
1018 static void handle_error(Display * d, XErrorEvent * ev)
1019 {
1020 }
1021
1022 int
1023 #ifdef NOSTDLIB
1024 _start(void)
1025 #else
1026 main(int argc, char *argv[])
1027 #endif
1028 {
1029     XEvent ev;
1030     fd_set fd;
1031     int xfd;
1032
1033     dd = XOpenDisplay(NULL);
1034     if (!dd)
1035         return 0;
1036     scr_screen = DefaultScreen(dd);
1037     scr_depth = DefaultDepth(dd, scr_screen);
1038     scr_height = DisplayHeight(dd, scr_screen);
1039     scr_width = DisplayWidth(dd, scr_screen);
1040     root_win = RootWindow(dd, scr_screen);
1041
1042     /* helps us catch windows closing/opening */
1043     XSelectInput(dd, root_win, PropertyChangeMask);
1044
1045     XSetErrorHandler((XErrorHandler) handle_error);
1046
1047     XInternAtoms(dd, atom_names, ATOM_COUNT, False, atoms);
1048
1049     gui_init();
1050     memset(&tb, 0, sizeof(tb));
1051     tb.win = gui_create_taskbar();
1052     xfd = ConnectionNumber(dd);
1053     XSync(dd, False);
1054     taskbar_read_clientlist();
1055     gui_draw_taskbar();
1056
1057     while (1) {
1058         FD_ZERO(&fd);
1059         FD_SET(xfd, &fd);
1060         select(xfd + 1, &fd, 0, 0, 0);
1061
1062         while (XPending(dd)) {
1063             XNextEvent(dd, &ev);
1064             switch (ev.type) {
1065             case ButtonPress:
1066                 handle_press(ev.xbutton.x, ev.xbutton.y, ev.xbutton.button, ev.xbutton.time);
1067                 break;
1068             case PropertyNotify:
1069                 handle_propertynotify(ev.xproperty.window, ev.xproperty.atom);
1070                 break;
1071             /*default:
1072                    printf ("unknown evt type: %d\n", ev.type); */
1073             }
1074         }
1075     }
1076     /* RrInstanceFree(inst);
1077      * XCloseDisplay (dd);
1078
1079        return 0; */
1080 }
1081