Dogcows Code - chaz/openbox/blob - src/workspace.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #ifdef    HAVE_CONFIG_H
   4 #  include "../config.h"
   5 #endif // HAVE_CONFIG_H
   6
   7 extern "C" {
   8 #include <X11/Xlib.h>
   9 #include <X11/Xatom.h>
  10
  11 #ifdef    HAVE_STDIO_H
  12 #  include <stdio.h>
  13 #endif // HAVE_STDIO_H
  14
  15 #ifdef HAVE_STRING_H
  16 #  include <string.h>
  17 #endif // HAVE_STRING_H
  18 }
  19
  20 #include <assert.h>
  21
  22 #include <functional>
  23 #include <string>
  24
  25 using std::string;
  26
  27 #include "blackbox.hh"
  28 #include "font.hh"
  29 #include "screen.hh"
  30 #include "util.hh"
  31 #include "window.hh"
  32 #include "workspace.hh"
  33 #include "xatom.hh"
  34
  35
  36 Workspace::Workspace(BScreen *scrn, unsigned int i) {
  37   screen = scrn;
  38   xatom = screen->getBlackbox()->getXAtom();
  39
  40   cascade_x = cascade_y = 0;
  41 #ifdef    XINERAMA
  42   cascade_region = 0;
  43 #endif // XINERAMA
  44
  45   id = i;
  46
  47   lastfocus = (BlackboxWindow *) 0;
  48
  49   readName();
  50 }
  51
  52
  53 void Workspace::addWindow(BlackboxWindow *w, bool place, bool sticky) {
  54   assert(w != 0);
  55
  56   if (place) placeWindow(w);
  57
  58   stackingList.push_front(w);
  59
  60   if (! sticky)
  61     w->setWorkspace(id);
  62
  63   if (! w->isNormal()) {
  64     if (! sticky) {
  65       // just give it some number, else bad things happen as it is assumed to
  66       // not be on a workspace
  67       w->setWindowNumber(0);
  68     }
  69   } else {
  70     if (! sticky)
  71       w->setWindowNumber(windowList.size());
  72
  73     windowList.push_back(w);
  74
  75     if (screen->doFocusNew() || (w->isTransient() && w->getTransientFor() &&
  76                                  w->getTransientFor()->isFocused())) {
  77       if (id != screen->getCurrentWorkspaceID()) {
  78         /*
  79            not on the focused workspace, so the window is not going to get focus
  80            but if the user wants new windows focused, then it should get focus
  81            when this workspace does become focused.
  82         */
  83         lastfocus = w;
  84       }
  85     }
  86   }
  87
  88   if (! w->isDesktop())
  89     raiseWindow(w);
  90   else
  91     lowerWindow(w);
  92 }
  93
  94
  95 void Workspace::removeWindow(BlackboxWindow *w, bool sticky) {
  96   assert(w != 0);
  97
  98   stackingList.remove(w);
  99
 100   // pass focus to the next appropriate window
 101   if ((w->isFocused() || w == lastfocus) &&
 102       ! screen->getBlackbox()->doShutdown()) {
 103     focusFallback(w);
 104   }
 105
 106   if (! w->isNormal()) return;
 107
 108   BlackboxWindowList::iterator it, end = windowList.end();
 109   int i;
 110   for (i = 0, it = windowList.begin(); it != end; ++it, ++i)
 111     if (*it == w)
 112       break;
 113   assert(it != end);
 114
 115   windowList.erase(it);
 116   if (! sticky) {
 117     BlackboxWindowList::iterator it = windowList.begin();
 118     const BlackboxWindowList::iterator end = windowList.end();
 119     unsigned int i = 0;
 120     for (; it != end; ++it, ++i)
 121       (*it)->setWindowNumber(i);
 122   }
 123
 124   if (i == 0) {
 125     cascade_x = cascade_y = 0;
 126 #ifdef    XINERAMA
 127     cascade_region = 0;
 128 #endif // XINERAMA
 129   }
 130 }
 131
 132
 133 void Workspace::focusFallback(const BlackboxWindow *old_window) {
 134   BlackboxWindow *newfocus = 0;
 135
 136   if (id == screen->getCurrentWorkspaceID()) {
 137     // The window is on the visible workspace.
 138
 139     // if it's a transient, then try to focus its parent
 140     if (old_window && old_window->isTransient()) {
 141       newfocus = old_window->getTransientFor();
 142
 143       if (! newfocus ||
 144           newfocus->isIconic() ||                  // do not focus icons
 145           newfocus->getWorkspaceNumber() != id ||  // or other workspaces
 146           ! newfocus->setInputFocus())
 147         newfocus = 0;
 148     }
 149
 150     if (! newfocus) {
 151       BlackboxWindowList::iterator it = stackingList.begin(),
 152                                   end = stackingList.end();
 153       for (; it != end; ++it) {
 154         BlackboxWindow *tmp = *it;
 155         if (tmp && tmp->isNormal() && tmp->setInputFocus()) {
 156           // we found our new focus target
 157           newfocus = tmp;
 158           break;
 159         }
 160       }
 161     }
 162
 163     screen->getBlackbox()->setFocusedWindow(newfocus);
 164   } else {
 165     // The window is not on the visible workspace.
 166
 167     if (old_window && lastfocus == old_window) {
 168       // The window was the last-focus target, so we need to replace it.
 169       BlackboxWindow *win = (BlackboxWindow*) 0;
 170       if (! stackingList.empty())
 171         win = stackingList.front();
 172       setLastFocusedWindow(win);
 173     }
 174   }
 175 }
 176
 177
 178 void Workspace::removeAll(void) {
 179   while (! windowList.empty())
 180     windowList.front()->iconify();
 181 }
 182
 183 void Workspace::showAll(void) {
 184   BlackboxWindowList::iterator it = stackingList.begin();
 185   const BlackboxWindowList::iterator end = stackingList.end();
 186   for (; it != end; ++it) {
 187     BlackboxWindow *bw = *it;
 188     // sticky windows arent unmapped on a workspace change so we don't have ot
 189     // map them, but sometimes on a restart, another app can unmap our sticky
 190     // windows, so we map on startup always
 191     if (! bw->isStuck() || screen->getBlackbox()->isStartup())
 192       bw->show();
 193   }
 194 }
 195
 196
 197 void Workspace::hideAll(void) {
 198   // withdraw in reverse order to minimize the number of Expose events
 199
 200   BlackboxWindowList lst(stackingList.rbegin(), stackingList.rend());
 201
 202   BlackboxWindowList::iterator it = lst.begin();
 203   const BlackboxWindowList::iterator end = lst.end();
 204   for (; it != end; ++it) {
 205     BlackboxWindow *bw = *it;
 206     // don't hide sticky windows, or they'll end up flickering on a workspace
 207     // change
 208     if (! bw->isStuck())
 209       bw->withdraw();
 210   }
 211 }
 212
 213
 214
 215 /*
 216  * returns the number of transients for win, plus the number of transients
 217  * associated with each transient of win
 218  */
 219 static unsigned int countTransients(const BlackboxWindow * const win) {
 220   BlackboxWindowList transients = win->getTransients();
 221   if (transients.empty()) return 0;
 222
 223   unsigned int ret = transients.size();
 224   BlackboxWindowList::const_iterator it = transients.begin(),
 225     end = transients.end();
 226   for (; it != end; ++it)
 227     ret += countTransients(*it);
 228
 229   return ret;
 230 }
 231
 232
 233 /*
 234  * puts the transients of win into the stack. windows are stacked above
 235  * the window before it in the stackvector being iterated, meaning
 236  * stack[0] is on bottom, stack[1] is above stack[0], stack[2] is above
 237  * stack[1], etc...
 238  */
 239 void Workspace::raiseTransients(const BlackboxWindow * const win,
 240                                 StackVector::iterator &stack) {
 241   if (win->getTransients().empty()) return; // nothing to do
 242
 243   // put win's transients in the stack
 244   BlackboxWindowList::const_iterator it, end = win->getTransients().end();
 245   for (it = win->getTransients().begin(); it != end; ++it) {
 246     BlackboxWindow *w = *it;
 247     *stack++ = w->getFrameWindow();
 248
 249     if (! w->isIconic()) {
 250       Workspace *wkspc = screen->getWorkspace(w->getWorkspaceNumber());
 251       wkspc->stackingList.remove(w);
 252       wkspc->stackingList.push_front(w);
 253     }
 254   }
 255
 256   // put transients of win's transients in the stack
 257   for (it = win->getTransients().begin(); it != end; ++it)
 258     raiseTransients(*it, stack);
 259 }
 260
 261
 262 void Workspace::lowerTransients(const BlackboxWindow * const win,
 263                                 StackVector::iterator &stack) {
 264   if (win->getTransients().empty()) return; // nothing to do
 265
 266   // put transients of win's transients in the stack
 267   BlackboxWindowList::const_reverse_iterator it,
 268     end = win->getTransients().rend();
 269   for (it = win->getTransients().rbegin(); it != end; ++it)
 270     lowerTransients(*it, stack);
 271
 272   // put win's transients in the stack
 273   for (it = win->getTransients().rbegin(); it != end; ++it) {
 274     BlackboxWindow *w = *it;
 275     *stack++ = w->getFrameWindow();
 276
 277     if (! w->isIconic()) {
 278       Workspace *wkspc = screen->getWorkspace(w->getWorkspaceNumber());
 279       wkspc->stackingList.remove(w);
 280       wkspc->stackingList.push_back(w);
 281     }
 282   }
 283 }
 284
 285
 286 void Workspace::raiseWindow(BlackboxWindow *w) {
 287   BlackboxWindow *win = w;
 288
 289   if (win->isDesktop()) return;
 290
 291   // walk up the transient_for's to the window that is not a transient
 292   while (win->isTransient() && win->getTransientFor())
 293     win = win->getTransientFor();
 294
 295   // get the total window count (win and all transients)
 296   unsigned int i = 1 + countTransients(win);
 297
 298   // stack the window with all transients above
 299   StackVector stack_vector(i);
 300   StackVector::iterator stack = stack_vector.begin();
 301
 302   *(stack++) = win->getFrameWindow();
 303   if (! (win->isIconic() || win->isDesktop())) {
 304     Workspace *wkspc = screen->getWorkspace(win->getWorkspaceNumber());
 305     wkspc->stackingList.remove(win);
 306     wkspc->stackingList.push_front(win);
 307   }
 308
 309   raiseTransients(win, stack);
 310
 311   screen->raiseWindows(&stack_vector[0], stack_vector.size());
 312 }
 313
 314
 315 void Workspace::lowerWindow(BlackboxWindow *w) {
 316   BlackboxWindow *win = w;
 317
 318   // walk up the transient_for's to the window that is not a transient
 319   while (win->isTransient() && win->getTransientFor())
 320     win = win->getTransientFor();
 321
 322   // get the total window count (win and all transients)
 323   unsigned int i = 1 + countTransients(win);
 324
 325   // stack the window with all transients above
 326   StackVector stack_vector(i);
 327   StackVector::iterator stack = stack_vector.begin();
 328
 329   lowerTransients(win, stack);
 330
 331   *(stack++) = win->getFrameWindow();
 332   if (! (win->isIconic() || win->isDesktop())) {
 333     Workspace *wkspc = screen->getWorkspace(win->getWorkspaceNumber());
 334     wkspc->stackingList.remove(win);
 335     wkspc->stackingList.push_back(win);
 336   }
 337
 338   screen->lowerWindows(&stack_vector[0], stack_vector.size());
 339 }
 340
 341
 342 void Workspace::reconfigure(void) {
 343   std::for_each(windowList.begin(), windowList.end(),
 344                 std::mem_fun(&BlackboxWindow::reconfigure));
 345 }
 346
 347
 348 BlackboxWindow *Workspace::getWindow(unsigned int index) {
 349   if (index < windowList.size()) {
 350     BlackboxWindowList::iterator it = windowList.begin();
 351     while (index-- > 0) // increment to index
 352       ++it;
 353     return *it;
 354   }
 355
 356   return 0;
 357 }
 358
 359
 360 BlackboxWindow*
 361 Workspace::getNextWindowInList(BlackboxWindow *w) {
 362   BlackboxWindowList::iterator it = std::find(windowList.begin(),
 363                                               windowList.end(),
 364                                               w);
 365   assert(it != windowList.end());   // window must be in list
 366   ++it;                             // next window
 367   if (it == windowList.end())
 368     return windowList.front();      // if we walked off the end, wrap around
 369
 370   return *it;
 371 }
 372
 373
 374 BlackboxWindow* Workspace::getPrevWindowInList(BlackboxWindow *w) {
 375   BlackboxWindowList::iterator it = std::find(windowList.begin(),
 376                                               windowList.end(),
 377                                               w);
 378   assert(it != windowList.end()); // window must be in list
 379   if (it == windowList.begin())
 380     return windowList.back();     // if we walked of the front, wrap around
 381
 382   return *(--it);
 383 }
 384
 385
 386 BlackboxWindow* Workspace::getTopWindowOnStack(void) const {
 387   assert(! stackingList.empty());
 388   return stackingList.front();
 389 }
 390
 391
 392 unsigned int Workspace::getCount(void) const {
 393   return windowList.size();
 394 }
 395
 396
 397 void Workspace::appendStackOrder(BlackboxWindowList &stack_order) const {
 398   BlackboxWindowList::const_reverse_iterator it = stackingList.rbegin();
 399   const BlackboxWindowList::const_reverse_iterator end = stackingList.rend();
 400   for (; it != end; ++it)
 401     // don't add desktop wnidows, or sticky windows more than once
 402     if (! ( (*it)->isDesktop() ||
 403             ((*it)->isStuck() && id != screen->getCurrentWorkspaceID())))
 404       stack_order.push_back(*it);
 405 }
 406
 407
 408 bool Workspace::isCurrent(void) const {
 409   return (id == screen->getCurrentWorkspaceID());
 410 }
 411
 412
 413 bool Workspace::isLastWindow(const BlackboxWindow* const w) const {
 414   return (w == windowList.back());
 415 }
 416
 417
 418 void Workspace::setCurrent(void) {
 419   screen->changeWorkspaceID(id);
 420 }
 421
 422
 423 void Workspace::readName(void) {
 424   XAtom::StringVect namesList;
 425   unsigned long numnames = id + 1;
 426
 427   // attempt to get from the _NET_WM_DESKTOP_NAMES property
 428   if (xatom->getValue(screen->getRootWindow(), XAtom::net_desktop_names,
 429                       XAtom::utf8, numnames, namesList) &&
 430       namesList.size() > id) {
 431     name = namesList[id];
 432
 433   } else {
 434     /*
 435        Use a default name. This doesn't actually change the class. That will
 436        happen after the setName changes the root property, and that change
 437        makes its way back to this function.
 438     */
 439     string tmp = "Workspace %d";
 440     assert(tmp.length() < 32);
 441     char default_name[32];
 442     sprintf(default_name, tmp.c_str(), id + 1);
 443
 444     setName(default_name);  // save this into the _NET_WM_DESKTOP_NAMES property
 445   }
 446 }
 447
 448
 449 void Workspace::setName(const string& new_name) {
 450   // set the _NET_WM_DESKTOP_NAMES property with the new name
 451   XAtom::StringVect namesList;
 452   unsigned long numnames = (unsigned) -1;
 453   if (xatom->getValue(screen->getRootWindow(), XAtom::net_desktop_names,
 454                       XAtom::utf8, numnames, namesList) &&
 455       namesList.size() > id)
 456     namesList[id] = new_name;
 457   else
 458     namesList.push_back(new_name);
 459
 460   xatom->setValue(screen->getRootWindow(), XAtom::net_desktop_names,
 461                   XAtom::utf8, namesList);
 462 }
 463
 464
 465 /*
 466  * Calculate free space available for window placement.
 467  */
 468 Workspace::rectList Workspace::calcSpace(const Rect &win,
 469                                          const rectList &spaces) const {
 470   Rect isect, extra;
 471   rectList result;
 472   rectList::const_iterator siter, end = spaces.end();
 473   for (siter = spaces.begin(); siter != end; ++siter) {
 474     const Rect &curr = *siter;
 475
 476     if(! win.intersects(curr)) {
 477       result.push_back(curr);
 478       continue;
 479     }
 480
 481     /* Use an intersection of win and curr to determine the space around
 482      * curr that we can use.
 483      *
 484      * NOTE: the spaces calculated can overlap.
 485      */
 486     isect = curr & win;
 487
 488     // left
 489     extra.setCoords(curr.left(), curr.top(),
 490                     isect.left() - screen->getSnapOffset(), curr.bottom());
 491     if (extra.valid()) result.push_back(extra);
 492
 493     // top
 494     extra.setCoords(curr.left(), curr.top(),
 495                     curr.right(), isect.top() - screen->getSnapOffset());
 496     if (extra.valid()) result.push_back(extra);
 497
 498     // right
 499     extra.setCoords(isect.right() + screen->getSnapOffset(), curr.top(),
 500                     curr.right(), curr.bottom());
 501     if (extra.valid()) result.push_back(extra);
 502
 503     // bottom
 504     extra.setCoords(curr.left(), isect.bottom() + screen->getSnapOffset(),
 505                     curr.right(), curr.bottom());
 506     if (extra.valid()) result.push_back(extra);
 507   }
 508   return result;
 509 }
 510
 511
 512 static bool rowRLBT(const Rect &first, const Rect &second) {
 513   if (first.bottom() == second.bottom())
 514     return first.right() > second.right();
 515   return first.bottom() > second.bottom();
 516 }
 517
 518 static bool rowRLTB(const Rect &first, const Rect &second) {
 519   if (first.y() == second.y())
 520     return first.right() > second.right();
 521   return first.y() < second.y();
 522 }
 523
 524 static bool rowLRBT(const Rect &first, const Rect &second) {
 525   if (first.bottom() == second.bottom())
 526     return first.x() < second.x();
 527   return first.bottom() > second.bottom();
 528 }
 529
 530 static bool rowLRTB(const Rect &first, const Rect &second) {
 531   if (first.y() == second.y())
 532     return first.x() < second.x();
 533   return first.y() < second.y();
 534 }
 535
 536 static bool colLRTB(const Rect &first, const Rect &second) {
 537   if (first.x() == second.x())
 538     return first.y() < second.y();
 539   return first.x() < second.x();
 540 }
 541
 542 static bool colLRBT(const Rect &first, const Rect &second) {
 543   if (first.x() == second.x())
 544     return first.bottom() > second.bottom();
 545   return first.x() < second.x();
 546 }
 547
 548 static bool colRLTB(const Rect &first, const Rect &second) {
 549   if (first.right() == second.right())
 550     return first.y() < second.y();
 551   return first.right() > second.right();
 552 }
 553
 554 static bool colRLBT(const Rect &first, const Rect &second) {
 555   if (first.right() == second.right())
 556     return first.bottom() > second.bottom();
 557   return first.right() > second.right();
 558 }
 559
 560
 561 bool Workspace::smartPlacement(Rect& win) {
 562   rectList spaces;
 563
 564   //initially the entire screen is free
 565 #ifdef    XINERAMA
 566   if (screen->isXineramaActive() &&
 567       screen->getBlackbox()->doXineramaPlacement()) {
 568     RectList availableAreas = screen->allAvailableAreas();
 569     RectList::iterator it, end = availableAreas.end();
 570
 571     for (it = availableAreas.begin(); it != end; ++it) {
 572       Rect r = *it;
 573       r.setRect(r.x() + screen->getSnapOffset(),
 574                 r.y() + screen->getSnapOffset(),
 575                 r.width() - screen->getSnapOffset(),
 576                 r.height() - screen->getSnapOffset());
 577       spaces.push_back(*it);
 578     }
 579   } else
 580 #endif // XINERAMA
 581   {
 582     Rect r = screen->availableArea();
 583     r.setRect(r.x() + screen->getSnapOffset(),
 584               r.y() + screen->getSnapOffset(),
 585               r.width() - screen->getSnapOffset(),
 586               r.height() - screen->getSnapOffset());
 587     spaces.push_back(r);
 588   }
 589
 590   //Find Free Spaces
 591   BlackboxWindowList::const_iterator wit = windowList.begin(),
 592     end = windowList.end();
 593   Rect tmp;
 594   for (; wit != end; ++wit) {
 595     const BlackboxWindow* const curr = *wit;
 596
 597     // watch for shaded windows and full-maxed windows
 598     if (curr->isShaded()) {
 599       if (screen->getPlaceIgnoreShaded()) continue;
 600     } else if (curr->isMaximizedFull()) {
 601       if (screen->getPlaceIgnoreMaximized()) continue;
 602     }
 603
 604     tmp.setRect(curr->frameRect().x(), curr->frameRect().y(),
 605                 curr->frameRect().width() + screen->getBorderWidth(),
 606                 curr->frameRect().height() + screen->getBorderWidth());
 607
 608     spaces = calcSpace(tmp, spaces);
 609   }
 610
 611   if (screen->getPlacementPolicy() == BScreen::RowSmartPlacement) {
 612     if(screen->getRowPlacementDirection() == BScreen::LeftRight) {
 613       if(screen->getColPlacementDirection() == BScreen::TopBottom)
 614         std::sort(spaces.begin(), spaces.end(), rowLRTB);
 615       else
 616         std::sort(spaces.begin(), spaces.end(), rowLRBT);
 617     } else {
 618       if(screen->getColPlacementDirection() == BScreen::TopBottom)
 619         std::sort(spaces.begin(), spaces.end(), rowRLTB);
 620       else
 621         std::sort(spaces.begin(), spaces.end(), rowRLBT);
 622     }
 623   } else {
 624     if(screen->getColPlacementDirection() == BScreen::TopBottom) {
 625       if(screen->getRowPlacementDirection() == BScreen::LeftRight)
 626         std::sort(spaces.begin(), spaces.end(), colLRTB);
 627       else
 628         std::sort(spaces.begin(), spaces.end(), colRLTB);
 629     } else {
 630       if(screen->getRowPlacementDirection() == BScreen::LeftRight)
 631         std::sort(spaces.begin(), spaces.end(), colLRBT);
 632       else
 633         std::sort(spaces.begin(), spaces.end(), colRLBT);
 634     }
 635   }
 636
 637   rectList::const_iterator sit = spaces.begin(), spaces_end = spaces.end();
 638   for(; sit != spaces_end; ++sit) {
 639     if (sit->width() >= win.width() && sit->height() >= win.height())
 640       break;
 641   }
 642
 643   if (sit == spaces_end)
 644     return False;
 645
 646   //set new position based on the empty space found
 647   const Rect& where = *sit;
 648   win.setX(where.x());
 649   win.setY(where.y());
 650
 651   // adjust the location() based on left/right and top/bottom placement
 652   if (screen->getPlacementPolicy() == BScreen::RowSmartPlacement) {
 653     if (screen->getRowPlacementDirection() == BScreen::RightLeft)
 654       win.setX(where.right() - win.width());
 655     if (screen->getColPlacementDirection() == BScreen::BottomTop)
 656       win.setY(where.bottom() - win.height());
 657   } else {
 658     if (screen->getColPlacementDirection() == BScreen::BottomTop)
 659       win.setY(win.y() + where.height() - win.height());
 660     if (screen->getRowPlacementDirection() == BScreen::RightLeft)
 661       win.setX(win.x() + where.width() - win.width());
 662   }
 663   return True;
 664 }
 665
 666
 667 bool Workspace::underMousePlacement(Rect &win) {
 668   int x, y, rx, ry;
 669   Window c, r;
 670   unsigned int m;
 671   XQueryPointer(screen->getBlackbox()->getXDisplay(), screen->getRootWindow(),
 672                 &r, &c, &rx, &ry, &x, &y, &m);
 673
 674   Rect area;
 675 #ifdef    XINERAMA
 676   if (screen->isXineramaActive() &&
 677       screen->getBlackbox()->doXineramaPlacement()) {
 678     RectList availableAreas = screen->allAvailableAreas();
 679     RectList::iterator it, end = availableAreas.end();
 680
 681     for (it = availableAreas.begin(); it != end; ++it)
 682       if (it->contains(rx, ry)) break;
 683     assert(it != end);  // the mouse isn't inside an area?
 684     area = *it;
 685   } else
 686 #endif // XINERAMA
 687     area = screen->availableArea();
 688
 689   x = rx - win.width() / 2;
 690   y = ry - win.height() / 2;
 691
 692   if (x < area.x())
 693     x = area.x();
 694   if (y < area.y())
 695     y = area.y();
 696   if (x + win.width() > area.x() + area.width())
 697     x = area.x() + area.width() - win.width();
 698   if (y + win.height() > area.y() + area.height())
 699     y = area.y() + area.height() - win.height();
 700
 701   win.setX(x);
 702   win.setY(y);
 703
 704   return True;
 705 }
 706
 707
 708 bool Workspace::cascadePlacement(Rect &win, const int offset) {
 709   Rect area;
 710
 711 #ifdef    XINERAMA
 712   if (screen->isXineramaActive() &&
 713       screen->getBlackbox()->doXineramaPlacement()) {
 714     area = screen->allAvailableAreas()[cascade_region];
 715   } else
 716 #endif // XINERAMA
 717     area = screen->availableArea();
 718
 719   if ((static_cast<signed>(cascade_x + win.width()) > area.right() + 1) ||
 720       (static_cast<signed>(cascade_y + win.height()) > area.bottom() + 1)) {
 721     cascade_x = cascade_y = 0;
 722 #ifdef    XINERAMA
 723     if (screen->isXineramaActive() &&
 724         screen->getBlackbox()->doXineramaPlacement()) {
 725       // go to the next xinerama region, and use its area
 726       if (++cascade_region >= screen->allAvailableAreas().size())
 727         cascade_region = 0;
 728       area = screen->allAvailableAreas()[cascade_region];
 729     }
 730 #endif // XINERAMA
 731   }
 732
 733   if (cascade_x == 0) {
 734     cascade_x = area.x() + offset;
 735     cascade_y = area.y() + offset;
 736   }
 737
 738   win.setPos(cascade_x, cascade_y);
 739
 740   cascade_x += offset;
 741   cascade_y += offset;
 742
 743   return True;
 744 }
 745
 746
 747 void Workspace::placeWindow(BlackboxWindow *win) {
 748   Rect new_win(0, 0, win->frameRect().width(), win->frameRect().height());
 749   bool placed = False;
 750
 751   switch (screen->getPlacementPolicy()) {
 752   case BScreen::RowSmartPlacement:
 753   case BScreen::ColSmartPlacement:
 754     placed = smartPlacement(new_win);
 755     break;
 756   case BScreen::UnderMousePlacement:
 757   case BScreen::ClickMousePlacement:
 758     placed = underMousePlacement(new_win);
 759   default:
 760     break; // handled below
 761   } // switch
 762
 763   if (placed == False)
 764     cascadePlacement(new_win, (win->getTitleHeight() +
 765                                screen->getBorderWidth() * 2));
 766
 767   if (new_win.right() > screen->availableArea().right())
 768     new_win.setX(screen->availableArea().left());
 769   if (new_win.bottom() > screen->availableArea().bottom())
 770     new_win.setY(screen->availableArea().top());
 771
 772   win->configure(new_win.x(), new_win.y(), new_win.width(), new_win.height());
 773 }