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

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 // Workspace.cc for Blackbox - an X11 Window manager
   3 // Copyright (c) 2001 - 2002 Sean 'Shaleh' Perry <shaleh@debian.org>
   4 // Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net)
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining a
   7 // copy of this software and associated documentation files (the "Software"),
   8 // to deal in the Software without restriction, including without limitation
   9 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10 // and/or sell copies of the Software, and to permit persons to whom the
  11 // Software is furnished to do so, subject to the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be included in
  14 // all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22 // DEALINGS IN THE SOFTWARE.
  23
  24 #ifdef    HAVE_CONFIG_H
  25 #  include "../config.h"
  26 #endif // HAVE_CONFIG_H
  27
  28 extern "C" {
  29 #include <X11/Xlib.h>
  30 #include <X11/Xatom.h>
  31
  32 #ifdef    HAVE_STDIO_H
  33 #  include <stdio.h>
  34 #endif // HAVE_STDIO_H
  35
  36 #ifdef HAVE_STRING_H
  37 #  include <string.h>
  38 #endif // HAVE_STRING_H
  39 }
  40
  41 #include <functional>
  42 #include <string>
  43
  44 using std::string;
  45
  46 #include "i18n.hh"
  47 #include "blackbox.hh"
  48 #include "Clientmenu.hh"
  49 #include "Netizen.hh"
  50 #include "Screen.hh"
  51 #include "Toolbar.hh"
  52 #include "Util.hh"
  53 #include "Window.hh"
  54 #include "Workspace.hh"
  55 #include "Windowmenu.hh"
  56
  57
  58 Workspace::Workspace(BScreen *scrn, unsigned int i) {
  59   screen = scrn;
  60
  61   cascade_x = cascade_y = 32;
  62
  63   id = i;
  64
  65   clientmenu = new Clientmenu(this);
  66
  67   lastfocus = (BlackboxWindow *) 0;
  68
  69   setName(screen->getNameOfWorkspace(id));
  70 }
  71
  72
  73 void Workspace::addWindow(BlackboxWindow *w, bool place) {
  74   assert(w != 0);
  75
  76   if (place) placeWindow(w);
  77
  78   w->setWorkspace(id);
  79   w->setWindowNumber(windowList.size());
  80
  81   stackingList.push_front(w);
  82   windowList.push_back(w);
  83
  84   clientmenu->insert(w->getTitle());
  85   clientmenu->update();
  86
  87   screen->updateNetizenWindowAdd(w->getClientWindow(), id);
  88
  89   raiseWindow(w);
  90 }
  91
  92
  93 unsigned int Workspace::removeWindow(BlackboxWindow *w) {
  94   assert(w != 0);
  95
  96   stackingList.remove(w);
  97
  98   if (w->isFocused() && ! screen->getBlackbox()->doShutdown()) {
  99     BlackboxWindow *newfocus = 0;
 100     if (w->isTransient())
 101       newfocus = w->getTransientFor();
 102     if (! newfocus && ! stackingList.empty())
 103       newfocus = stackingList.front();
 104     if (! newfocus || ! newfocus->setInputFocus())
 105       screen->getBlackbox()->setFocusedWindow(0);
 106   }
 107
 108   if (lastfocus == w)
 109     lastfocus = (BlackboxWindow *) 0;
 110
 111   windowList.remove(w);
 112   clientmenu->remove(w->getWindowNumber());
 113   clientmenu->update();
 114
 115   screen->updateNetizenWindowDel(w->getClientWindow());
 116
 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   if (i == 0)
 124     cascade_x = cascade_y = 32;
 125
 126   return i;
 127 }
 128
 129
 130 void Workspace::showAll(void) {
 131   std::for_each(stackingList.begin(), stackingList.end(),
 132                 std::mem_fun(&BlackboxWindow::show));
 133 }
 134
 135
 136 void Workspace::hideAll(void) {
 137   // withdraw in reverse order to minimize the number of Expose events
 138
 139   BlackboxWindowList lst(stackingList.rbegin(), stackingList.rend());
 140
 141   BlackboxWindowList::iterator it = lst.begin();
 142   const BlackboxWindowList::iterator end = lst.end();
 143   for (; it != end; ++it) {
 144     BlackboxWindow *bw = *it;
 145     if (! bw->isStuck())
 146       bw->withdraw();
 147   }
 148 }
 149
 150
 151 void Workspace::removeAll(void) {
 152   while (! windowList.empty())
 153     windowList.front()->iconify();
 154 }
 155
 156
 157 /*
 158  * returns the number of transients for win, plus the number of transients
 159  * associated with each transient of win
 160  */
 161 static int countTransients(const BlackboxWindow * const win) {
 162   int ret = win->getTransients().size();
 163   if (ret > 0) {
 164     BlackboxWindowList::const_iterator it, end = win->getTransients().end();
 165     for (it = win->getTransients().begin(); it != end; ++it) {
 166       ret += countTransients(*it);
 167     }
 168   }
 169   return ret;
 170 }
 171
 172
 173 /*
 174  * puts the transients of win into the stack. windows are stacked above
 175  * the window before it in the stackvector being iterated, meaning
 176  * stack[0] is on bottom, stack[1] is above stack[0], stack[2] is above
 177  * stack[1], etc...
 178  */
 179 void Workspace::raiseTransients(const BlackboxWindow * const win,
 180                                 StackVector::iterator &stack) {
 181   if (win->getTransients().size() == 0) return; // nothing to do
 182
 183   // put win's transients in the stack
 184   BlackboxWindowList::const_iterator it, end = win->getTransients().end();
 185   for (it = win->getTransients().begin(); it != end; ++it) {
 186     *stack++ = (*it)->getFrameWindow();
 187     screen->updateNetizenWindowRaise((*it)->getClientWindow());
 188
 189     if (! (*it)->isIconic()) {
 190       Workspace *wkspc = screen->getWorkspace((*it)->getWorkspaceNumber());
 191       wkspc->stackingList.remove((*it));
 192       wkspc->stackingList.push_front((*it));
 193     }
 194   }
 195
 196   // put transients of win's transients in the stack
 197   for (it = win->getTransients().begin(); it != end; ++it) {
 198     raiseTransients(*it, stack);
 199   }
 200 }
 201
 202
 203 void Workspace::lowerTransients(const BlackboxWindow * const win,
 204                                 StackVector::iterator &stack) {
 205   if (win->getTransients().size() == 0) return; // nothing to do
 206
 207   // put transients of win's transients in the stack
 208   BlackboxWindowList::const_reverse_iterator it,
 209     end = win->getTransients().rend();
 210   for (it = win->getTransients().rbegin(); it != end; ++it) {
 211     lowerTransients(*it, stack);
 212   }
 213
 214   // put win's transients in the stack
 215   for (it = win->getTransients().rbegin(); it != end; ++it) {
 216     *stack++ = (*it)->getFrameWindow();
 217     screen->updateNetizenWindowLower((*it)->getClientWindow());
 218
 219     if (! (*it)->isIconic()) {
 220       Workspace *wkspc = screen->getWorkspace((*it)->getWorkspaceNumber());
 221       wkspc->stackingList.remove((*it));
 222       wkspc->stackingList.push_back((*it));
 223     }
 224   }
 225
 226 }
 227
 228
 229 void Workspace::raiseWindow(BlackboxWindow *w) {
 230   BlackboxWindow *win = w;
 231
 232   // walk up the transient_for's to the window that is not a transient
 233   while (win->isTransient()) {
 234     if (! win->getTransientFor()) break;
 235     win = win->getTransientFor();
 236   }
 237
 238   // get the total window count (win and all transients)
 239   unsigned int i = 1 + countTransients(win);
 240
 241   // stack the window with all transients above
 242   StackVector stack_vector(i);
 243   StackVector::iterator stack = stack_vector.begin();
 244
 245   *(stack++) = win->getFrameWindow();
 246   screen->updateNetizenWindowRaise(win->getClientWindow());
 247   if (! win->isIconic()) {
 248     Workspace *wkspc = screen->getWorkspace(win->getWorkspaceNumber());
 249     wkspc->stackingList.remove(win);
 250     wkspc->stackingList.push_front(win);
 251   }
 252
 253   raiseTransients(win, stack);
 254
 255   screen->raiseWindows(&stack_vector[0], stack_vector.size());
 256 }
 257
 258
 259 void Workspace::lowerWindow(BlackboxWindow *w) {
 260   BlackboxWindow *win = w;
 261
 262   // walk up the transient_for's to the window that is not a transient
 263   while (win->isTransient()) {
 264     if (! win->getTransientFor()) break;
 265     win = win->getTransientFor();
 266   }
 267
 268   // get the total window count (win and all transients)
 269   unsigned int i = 1 + countTransients(win);
 270
 271   // stack the window with all transients above
 272   StackVector stack_vector(i);
 273   StackVector::iterator stack = stack_vector.begin();
 274
 275   lowerTransients(win, stack);
 276
 277   *(stack++) = win->getFrameWindow();
 278   screen->updateNetizenWindowLower(win->getClientWindow());
 279   if (! win->isIconic()) {
 280     Workspace *wkspc = screen->getWorkspace(win->getWorkspaceNumber());
 281     wkspc->stackingList.remove(win);
 282     wkspc->stackingList.push_back(win);
 283   }
 284
 285   XLowerWindow(screen->getBaseDisplay()->getXDisplay(), stack_vector.front());
 286   XRestackWindows(screen->getBaseDisplay()->getXDisplay(),
 287                   &stack_vector[0], stack_vector.size());
 288 }
 289
 290
 291 void Workspace::reconfigure(void) {
 292   clientmenu->reconfigure();
 293   std::for_each(windowList.begin(), windowList.end(),
 294                 std::mem_fun(&BlackboxWindow::reconfigure));
 295 }
 296
 297
 298 void Workspace::updateFocusModel(void) {
 299   std::for_each(windowList.begin(), windowList.end(),
 300                 std::mem_fun(&BlackboxWindow::updateFocusModel));
 301 }
 302
 303
 304 BlackboxWindow *Workspace::getWindow(unsigned int index) {
 305   if (index < windowList.size()) {
 306     BlackboxWindowList::iterator it = windowList.begin();
 307     for(; index > 0; --index, ++it); /* increment to index */
 308     return *it;
 309   }
 310   return 0;
 311 }
 312
 313
 314 BlackboxWindow*
 315 Workspace::getNextWindowInList(BlackboxWindow *w) {
 316   BlackboxWindowList::iterator it = std::find(windowList.begin(),
 317                                               windowList.end(),
 318                                               w);
 319   assert(it != windowList.end());   // window must be in list
 320   ++it;                             // next window
 321   if (it == windowList.end())
 322     return windowList.front();      // if we walked off the end, wrap around
 323
 324   return *it;
 325 }
 326
 327
 328 BlackboxWindow* Workspace::getPrevWindowInList(BlackboxWindow *w) {
 329   BlackboxWindowList::iterator it = std::find(windowList.begin(),
 330                                               windowList.end(),
 331                                               w);
 332   assert(it != windowList.end()); // window must be in list
 333   if (it == windowList.begin())
 334     return windowList.back();     // if we walked of the front, wrap around
 335
 336   return *(--it);
 337 }
 338
 339
 340 BlackboxWindow* Workspace::getTopWindowOnStack(void) const {
 341   return stackingList.front();
 342 }
 343
 344
 345 void Workspace::sendWindowList(Netizen &n) {
 346   BlackboxWindowList::iterator it = windowList.begin(),
 347     end = windowList.end();
 348   for(; it != end; ++it)
 349     n.sendWindowAdd((*it)->getClientWindow(), getID());
 350 }
 351
 352
 353 unsigned int Workspace::getCount(void) const {
 354   return windowList.size();
 355 }
 356
 357
 358 bool Workspace::isCurrent(void) const {
 359   return (id == screen->getCurrentWorkspaceID());
 360 }
 361
 362
 363 bool Workspace::isLastWindow(const BlackboxWindow* const w) const {
 364   return (w == windowList.back());
 365 }
 366
 367 void Workspace::setCurrent(void) {
 368   screen->changeWorkspaceID(id);
 369 }
 370
 371
 372 void Workspace::setName(const string& new_name) {
 373   if (! new_name.empty()) {
 374     name = new_name;
 375   } else {
 376     string tmp =i18n(WorkspaceSet, WorkspaceDefaultNameFormat, "Workspace %d");
 377     assert(tmp.length() < 32);
 378     char default_name[32];
 379     sprintf(default_name, tmp.c_str(), id + 1);
 380     name = default_name;
 381   }
 382
 383   clientmenu->setLabel(name);
 384   clientmenu->update();
 385   screen->saveWorkspaceNames();
 386 }
 387
 388
 389 /*
 390  * Calculate free space available for window placement.
 391  */
 392 typedef std::vector<Rect> rectList;
 393
 394 static rectList calcSpace(const Rect &win, const rectList &spaces) {
 395   Rect isect, extra;
 396   rectList result;
 397   rectList::const_iterator siter, end = spaces.end();
 398   for (siter = spaces.begin(); siter != end; ++siter) {
 399     const Rect &curr = *siter;
 400
 401     if(! win.intersects(curr)) {
 402       result.push_back(curr);
 403       continue;
 404     }
 405
 406     /* Use an intersection of win and curr to determine the space around
 407      * curr that we can use.
 408      *
 409      * NOTE: the spaces calculated can overlap.
 410      */
 411     isect = curr & win;
 412
 413     // left
 414     extra.setCoords(curr.left(), curr.top(),
 415                     isect.left() - 1, curr.bottom());
 416     if (extra.valid()) result.push_back(extra);
 417
 418     // top
 419     extra.setCoords(curr.left(), curr.top(),
 420                     curr.right(), isect.top() - 1);
 421     if (extra.valid()) result.push_back(extra);
 422
 423     // right
 424     extra.setCoords(isect.right() + 1, curr.top(),
 425                     curr.right(), curr.bottom());
 426     if (extra.valid()) result.push_back(extra);
 427
 428     // bottom
 429     extra.setCoords(curr.left(), isect.bottom() + 1,
 430                     curr.right(), curr.bottom());
 431     if (extra.valid()) result.push_back(extra);
 432   }
 433   return result;
 434 }
 435
 436
 437 static bool rowRLBT(const Rect &first, const Rect &second) {
 438   if (first.bottom() == second.bottom())
 439     return first.right() > second.right();
 440   return first.bottom() > second.bottom();
 441 }
 442
 443 static bool rowRLTB(const Rect &first, const Rect &second) {
 444   if (first.y() == second.y())
 445     return first.right() > second.right();
 446   return first.y() < second.y();
 447 }
 448
 449 static bool rowLRBT(const Rect &first, const Rect &second) {
 450   if (first.bottom() == second.bottom())
 451     return first.x() < second.x();
 452   return first.bottom() > second.bottom();
 453 }
 454
 455 static bool rowLRTB(const Rect &first, const Rect &second) {
 456   if (first.y() == second.y())
 457     return first.x() < second.x();
 458   return first.y() < second.y();
 459 }
 460
 461 static bool colLRTB(const Rect &first, const Rect &second) {
 462   if (first.x() == second.x())
 463     return first.y() < second.y();
 464   return first.x() < second.x();
 465 }
 466
 467 static bool colLRBT(const Rect &first, const Rect &second) {
 468   if (first.x() == second.x())
 469     return first.bottom() > second.bottom();
 470   return first.x() < second.x();
 471 }
 472
 473 static bool colRLTB(const Rect &first, const Rect &second) {
 474   if (first.right() == second.right())
 475     return first.y() < second.y();
 476   return first.right() > second.right();
 477 }
 478
 479 static bool colRLBT(const Rect &first, const Rect &second) {
 480   if (first.right() == second.right())
 481     return first.bottom() > second.bottom();
 482   return first.right() > second.right();
 483 }
 484
 485
 486 bool Workspace::smartPlacement(Rect& win, const Rect& availableArea) {
 487   rectList spaces;
 488   spaces.push_back(availableArea); //initially the entire screen is free
 489
 490   //Find Free Spaces
 491   BlackboxWindowList::iterator wit = windowList.begin(),
 492                                end = windowList.end();
 493   Rect tmp;
 494   for (; wit != end; ++wit) {
 495     const BlackboxWindow* const curr = *wit;
 496     tmp.setRect(curr->frameRect().x(), curr->frameRect().y(),
 497                 curr->frameRect().width() + screen->getBorderWidth(),
 498                 curr->frameRect().height() + screen->getBorderWidth());
 499
 500     spaces = calcSpace(tmp, spaces);
 501   }
 502
 503   if (screen->getPlacementPolicy() == BScreen::RowSmartPlacement) {
 504     if(screen->getRowPlacementDirection() == BScreen::LeftRight) {
 505       if(screen->getColPlacementDirection() == BScreen::TopBottom)
 506         sort(spaces.begin(), spaces.end(), rowLRTB);
 507       else
 508         sort(spaces.begin(), spaces.end(), rowLRBT);
 509     } else {
 510       if(screen->getColPlacementDirection() == BScreen::TopBottom)
 511         sort(spaces.begin(), spaces.end(), rowRLTB);
 512       else
 513         sort(spaces.begin(), spaces.end(), rowRLBT);
 514     }
 515   } else {
 516     if(screen->getColPlacementDirection() == BScreen::TopBottom) {
 517       if(screen->getRowPlacementDirection() == BScreen::LeftRight)
 518         sort(spaces.begin(), spaces.end(), colLRTB);
 519       else
 520         sort(spaces.begin(), spaces.end(), colRLTB);
 521     } else {
 522       if(screen->getRowPlacementDirection() == BScreen::LeftRight)
 523         sort(spaces.begin(), spaces.end(), colLRBT);
 524       else
 525         sort(spaces.begin(), spaces.end(), colRLBT);
 526     }
 527   }
 528
 529   rectList::const_iterator sit = spaces.begin(), spaces_end = spaces.end();
 530   for(; sit != spaces_end; ++sit) {
 531     if (sit->width() >= win.width() && sit->height() >= win.height())
 532       break;
 533   }
 534
 535   if (sit == spaces_end)
 536     return False;
 537
 538   //set new position based on the empty space found
 539   const Rect& where = *sit;
 540   win.setX(where.x());
 541   win.setY(where.y());
 542
 543   // adjust the location() based on left/right and top/bottom placement
 544   if (screen->getPlacementPolicy() == BScreen::RowSmartPlacement) {
 545     if (screen->getRowPlacementDirection() == BScreen::RightLeft)
 546       win.setX(where.right() - win.width());
 547     if (screen->getColPlacementDirection() == BScreen::BottomTop)
 548       win.setY(where.bottom() - win.height());
 549   } else {
 550     if (screen->getColPlacementDirection() == BScreen::BottomTop)
 551       win.setY(win.y() + where.height() - win.height());
 552     if (screen->getRowPlacementDirection() == BScreen::RightLeft)
 553       win.setX(win.x() + where.width() - win.width());
 554   }
 555   return True;
 556 }
 557
 558
 559 bool Workspace::underMousePlacement(Rect &win, const Rect &availableArea) {
 560   int x, y, rx, ry;
 561   Window c, r;
 562   unsigned int m;
 563   XQueryPointer(screen->getBlackbox()->getXDisplay(), screen->getRootWindow(),
 564                 &r, &c, &rx, &ry, &x, &y, &m);
 565   x = rx - win.width() / 2;
 566   y = ry - win.height() / 2;
 567
 568   if (x < availableArea.x())
 569     x = availableArea.x();
 570   if (y < availableArea.y())
 571     y = availableArea.y();
 572   if (x + win.width() > availableArea.x() + availableArea.width())
 573     x = availableArea.x() + availableArea.width() - win.width();
 574   if (y + win.height() > availableArea.y() + availableArea.height())
 575     y = availableArea.y() + availableArea.height() - win.height();
 576
 577   win.setX(x);
 578   win.setY(y);
 579
 580   return True;
 581 }
 582
 583
 584 bool Workspace::cascadePlacement(Rect &win, const Rect &availableArea) {
 585   if ((cascade_x > static_cast<signed>(availableArea.width() / 2)) ||
 586       (cascade_y > static_cast<signed>(availableArea.height() / 2)))
 587     cascade_x = cascade_y = 32;
 588
 589   if (cascade_x == 32) {
 590     cascade_x += availableArea.x();
 591     cascade_y += availableArea.y();
 592   }
 593
 594   win.setPos(cascade_x, cascade_y);
 595
 596   return True;
 597 }
 598
 599
 600 void Workspace::placeWindow(BlackboxWindow *win) {
 601   Rect availableArea(screen->availableArea()),
 602     new_win(availableArea.x(), availableArea.y(),
 603             win->frameRect().width(), win->frameRect().height());
 604   bool placed = False;
 605
 606   switch (screen->getPlacementPolicy()) {
 607   case BScreen::RowSmartPlacement:
 608   case BScreen::ColSmartPlacement:
 609     placed = smartPlacement(new_win, availableArea);
 610     break;
 611   case BScreen::UnderMousePlacement:
 612     placed = underMousePlacement(new_win, availableArea);
 613   default:
 614     break; // handled below
 615   } // switch
 616
 617   if (placed == False) {
 618     cascadePlacement(new_win, availableArea);
 619     cascade_x += win->getTitleHeight() + (screen->getBorderWidth() * 2);
 620     cascade_y += win->getTitleHeight() + (screen->getBorderWidth() * 2);
 621   }
 622
 623   if (new_win.right() > availableArea.right())
 624     new_win.setX(availableArea.left());
 625   if (new_win.bottom() > availableArea.bottom())
 626     new_win.setY(availableArea.top());
 627   win->configure(new_win.x(), new_win.y(), new_win.width(), new_win.height());
 628 }