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 <assert.h>
  42
  43 #include <functional>
  44 #include <string>
  45
  46 using std::string;
  47
  48 #include "i18n.hh"
  49 #include "blackbox.hh"
  50 #include "Clientmenu.hh"
  51 #include "Netizen.hh"
  52 #include "Screen.hh"
  53 #include "Toolbar.hh"
  54 #include "Util.hh"
  55 #include "Window.hh"
  56 #include "Workspace.hh"
  57 #include "Windowmenu.hh"
  58
  59
  60 Workspace::Workspace(BScreen *scrn, unsigned int i) {
  61   screen = scrn;
  62
  63   cascade_x = cascade_y = 32;
  64
  65   id = i;
  66
  67   clientmenu = new Clientmenu(this);
  68
  69   lastfocus = (BlackboxWindow *) 0;
  70
  71   setName(screen->getNameOfWorkspace(id));
  72 }
  73
  74
  75 void Workspace::addWindow(BlackboxWindow *w, bool place) {
  76   assert(w != 0);
  77
  78   if (place) placeWindow(w);
  79
  80   w->setWorkspace(id);
  81   w->setWindowNumber(windowList.size());
  82
  83   stackingList.push_front(w);
  84   windowList.push_back(w);
  85
  86   clientmenu->insert(w->getTitle());
  87   clientmenu->update();
  88
  89   screen->updateNetizenWindowAdd(w->getClientWindow(), id);
  90
  91   raiseWindow(w);
  92 }
  93
  94
  95 unsigned int Workspace::removeWindow(BlackboxWindow *w) {
  96   assert(w != 0);
  97
  98   stackingList.remove(w);
  99
 100   if (w->isFocused() && ! screen->getBlackbox()->doShutdown()) {
 101     BlackboxWindow *newfocus = 0;
 102     if (w->isTransient())
 103       newfocus = w->getTransientFor();
 104     if (! newfocus && ! stackingList.empty())
 105       newfocus = stackingList.front();
 106     if (! newfocus || ! newfocus->setInputFocus())
 107       screen->getBlackbox()->setFocusedWindow(0);
 108   }
 109
 110   if (lastfocus == w)
 111     lastfocus = (BlackboxWindow *) 0;
 112
 113   windowList.remove(w);
 114   clientmenu->remove(w->getWindowNumber());
 115   clientmenu->update();
 116
 117   screen->updateNetizenWindowDel(w->getClientWindow());
 118
 119   BlackboxWindowList::iterator it = windowList.begin();
 120   const BlackboxWindowList::iterator end = windowList.end();
 121   unsigned int i = 0;
 122   for (; it != end; ++it, ++i)
 123     (*it)->setWindowNumber(i);
 124
 125   if (i == 0)
 126     cascade_x = cascade_y = 32;
 127
 128   return i;
 129 }
 130
 131
 132 void Workspace::showAll(void) {
 133   std::for_each(stackingList.begin(), stackingList.end(),
 134                 std::mem_fun(&BlackboxWindow::show));
 135 }
 136
 137
 138 void Workspace::hideAll(void) {
 139   // withdraw in reverse order to minimize the number of Expose events
 140
 141   BlackboxWindowList lst(stackingList.rbegin(), stackingList.rend());
 142
 143   BlackboxWindowList::iterator it = lst.begin();
 144   const BlackboxWindowList::iterator end = lst.end();
 145   for (; it != end; ++it) {
 146     BlackboxWindow *bw = *it;
 147     if (! bw->isStuck())
 148       bw->withdraw();
 149   }
 150 }
 151
 152
 153 void Workspace::removeAll(void) {
 154   while (! windowList.empty())
 155     windowList.front()->iconify();
 156 }
 157
 158
 159 /*
 160  * returns the number of transients for win, plus the number of transients
 161  * associated with each transient of win
 162  */
 163 static int countTransients(const BlackboxWindow * const win) {
 164   int ret = win->getTransients().size();
 165   if (ret > 0) {
 166     BlackboxWindowList::const_iterator it, end = win->getTransients().end();
 167     for (it = win->getTransients().begin(); it != end; ++it) {
 168       ret += countTransients(*it);
 169     }
 170   }
 171   return ret;
 172 }
 173
 174
 175 /*
 176  * puts the transients of win into the stack. windows are stacked above
 177  * the window before it in the stackvector being iterated, meaning
 178  * stack[0] is on bottom, stack[1] is above stack[0], stack[2] is above
 179  * stack[1], etc...
 180  */
 181 void Workspace::raiseTransients(const BlackboxWindow * const win,
 182                                 StackVector::iterator &stack) {
 183   if (win->getTransients().size() == 0) return; // nothing to do
 184
 185   // put win's transients in the stack
 186   BlackboxWindowList::const_iterator it, end = win->getTransients().end();
 187   for (it = win->getTransients().begin(); it != end; ++it) {
 188     *stack++ = (*it)->getFrameWindow();
 189     screen->updateNetizenWindowRaise((*it)->getClientWindow());
 190
 191     if (! (*it)->isIconic()) {
 192       Workspace *wkspc = screen->getWorkspace((*it)->getWorkspaceNumber());
 193       wkspc->stackingList.remove((*it));
 194       wkspc->stackingList.push_front((*it));
 195     }
 196   }
 197
 198   // put transients of win's transients in the stack
 199   for (it = win->getTransients().begin(); it != end; ++it) {
 200     raiseTransients(*it, stack);
 201   }
 202 }
 203
 204
 205 void Workspace::lowerTransients(const BlackboxWindow * const win,
 206                                 StackVector::iterator &stack) {
 207   if (win->getTransients().size() == 0) return; // nothing to do
 208
 209   // put transients of win's transients in the stack
 210   BlackboxWindowList::const_reverse_iterator it,
 211     end = win->getTransients().rend();
 212   for (it = win->getTransients().rbegin(); it != end; ++it) {
 213     lowerTransients(*it, stack);
 214   }
 215
 216   // put win's transients in the stack
 217   for (it = win->getTransients().rbegin(); it != end; ++it) {
 218     *stack++ = (*it)->getFrameWindow();
 219     screen->updateNetizenWindowLower((*it)->getClientWindow());
 220
 221     if (! (*it)->isIconic()) {
 222       Workspace *wkspc = screen->getWorkspace((*it)->getWorkspaceNumber());
 223       wkspc->stackingList.remove((*it));
 224       wkspc->stackingList.push_back((*it));
 225     }
 226   }
 227 }
 228
 229
 230 void Workspace::raiseWindow(BlackboxWindow *w) {
 231   BlackboxWindow *win = w;
 232
 233   // walk up the transient_for's to the window that is not a transient
 234   while (win->isTransient()) {
 235     if (! win->getTransientFor()) break;
 236     win = win->getTransientFor();
 237   }
 238
 239   // get the total window count (win and all transients)
 240   unsigned int i = 1 + countTransients(win);
 241
 242   // stack the window with all transients above
 243   StackVector stack_vector(i);
 244   StackVector::iterator stack = stack_vector.begin();
 245
 246   *(stack++) = win->getFrameWindow();
 247   screen->updateNetizenWindowRaise(win->getClientWindow());
 248   if (! win->isIconic()) {
 249     Workspace *wkspc = screen->getWorkspace(win->getWorkspaceNumber());
 250     wkspc->stackingList.remove(win);
 251     wkspc->stackingList.push_front(win);
 252   }
 253
 254   raiseTransients(win, stack);
 255
 256   screen->raiseWindows(&stack_vector[0], stack_vector.size());
 257 }
 258
 259
 260 void Workspace::lowerWindow(BlackboxWindow *w) {
 261   BlackboxWindow *win = w;
 262
 263   // walk up the transient_for's to the window that is not a transient
 264   while (win->isTransient()) {
 265     if (! win->getTransientFor()) break;
 266     win = win->getTransientFor();
 267   }
 268
 269   // get the total window count (win and all transients)
 270   unsigned int i = 1 + countTransients(win);
 271
 272   // stack the window with all transients above
 273   StackVector stack_vector(i);
 274   StackVector::iterator stack = stack_vector.begin();
 275
 276   lowerTransients(win, stack);
 277
 278   *(stack++) = win->getFrameWindow();
 279   screen->updateNetizenWindowLower(win->getClientWindow());
 280   if (! win->isIconic()) {
 281     Workspace *wkspc = screen->getWorkspace(win->getWorkspaceNumber());
 282     wkspc->stackingList.remove(win);
 283     wkspc->stackingList.push_back(win);
 284   }
 285
 286   XLowerWindow(screen->getBaseDisplay()->getXDisplay(), stack_vector.front());
 287   XRestackWindows(screen->getBaseDisplay()->getXDisplay(),
 288                   &stack_vector[0], stack_vector.size());
 289 }
 290
 291
 292 void Workspace::reconfigure(void) {
 293   clientmenu->reconfigure();
 294   std::for_each(windowList.begin(), windowList.end(),
 295                 std::mem_fun(&BlackboxWindow::reconfigure));
 296 }
 297
 298
 299 void Workspace::updateFocusModel(void) {
 300   std::for_each(windowList.begin(), windowList.end(),
 301                 std::mem_fun(&BlackboxWindow::updateFocusModel));
 302 }
 303
 304
 305 BlackboxWindow *Workspace::getWindow(unsigned int index) {
 306   if (index < windowList.size()) {
 307     BlackboxWindowList::iterator it = windowList.begin();
 308     for(; index > 0; --index, ++it); /* increment to index */
 309     return *it;
 310   }
 311   return 0;
 312 }
 313
 314
 315 BlackboxWindow*
 316 Workspace::getNextWindowInList(BlackboxWindow *w) {
 317   BlackboxWindowList::iterator it = std::find(windowList.begin(),
 318                                               windowList.end(),
 319                                               w);
 320   assert(it != windowList.end());   // window must be in list
 321   ++it;                             // next window
 322   if (it == windowList.end())
 323     return windowList.front();      // if we walked off the end, wrap around
 324
 325   return *it;
 326 }
 327
 328
 329 BlackboxWindow* Workspace::getPrevWindowInList(BlackboxWindow *w) {
 330   BlackboxWindowList::iterator it = std::find(windowList.begin(),
 331                                               windowList.end(),
 332                                               w);
 333   assert(it != windowList.end()); // window must be in list
 334   if (it == windowList.begin())
 335     return windowList.back();     // if we walked of the front, wrap around
 336
 337   return *(--it);
 338 }
 339
 340
 341 BlackboxWindow* Workspace::getTopWindowOnStack(void) const {
 342   return stackingList.front();
 343 }
 344
 345
 346 void Workspace::sendWindowList(Netizen &n) {
 347   BlackboxWindowList::iterator it = windowList.begin(),
 348     end = windowList.end();
 349   for(; it != end; ++it)
 350     n.sendWindowAdd((*it)->getClientWindow(), getID());
 351 }
 352
 353
 354 unsigned int Workspace::getCount(void) const {
 355   return windowList.size();
 356 }
 357
 358
 359 bool Workspace::isCurrent(void) const {
 360   return (id == screen->getCurrentWorkspaceID());
 361 }
 362
 363
 364 bool Workspace::isLastWindow(const BlackboxWindow* const w) const {
 365   return (w == windowList.back());
 366 }
 367
 368 void Workspace::setCurrent(void) {
 369   screen->changeWorkspaceID(id);
 370 }
 371
 372
 373 void Workspace::setName(const string& new_name) {
 374   if (! new_name.empty()) {
 375     name = new_name;
 376   } else {
 377     string tmp =i18n(WorkspaceSet, WorkspaceDefaultNameFormat, "Workspace %d");
 378     assert(tmp.length() < 32);
 379     char default_name[32];
 380     sprintf(default_name, tmp.c_str(), id + 1);
 381     name = default_name;
 382   }
 383
 384   clientmenu->setLabel(name);
 385   clientmenu->update();
 386   screen->saveWorkspaceNames();
 387 }
 388
 389
 390 /*
 391  * Calculate free space available for window placement.
 392  */
 393 typedef std::vector<Rect> rectList;
 394
 395 static rectList calcSpace(const Rect &win, const rectList &spaces) {
 396   Rect isect, extra;
 397   rectList result;
 398   rectList::const_iterator siter, end = spaces.end();
 399   for (siter = spaces.begin(); siter != end; ++siter) {
 400     const Rect &curr = *siter;
 401
 402     if(! win.intersects(curr)) {
 403       result.push_back(curr);
 404       continue;
 405     }
 406
 407     /* Use an intersection of win and curr to determine the space around
 408      * curr that we can use.
 409      *
 410      * NOTE: the spaces calculated can overlap.
 411      */
 412     isect = curr & win;
 413
 414     // left
 415     extra.setCoords(curr.left(), curr.top(),
 416                     isect.left() - 1, curr.bottom());
 417     if (extra.valid()) result.push_back(extra);
 418
 419     // top
 420     extra.setCoords(curr.left(), curr.top(),
 421                     curr.right(), isect.top() - 1);
 422     if (extra.valid()) result.push_back(extra);
 423
 424     // right
 425     extra.setCoords(isect.right() + 1, curr.top(),
 426                     curr.right(), curr.bottom());
 427     if (extra.valid()) result.push_back(extra);
 428
 429     // bottom
 430     extra.setCoords(curr.left(), isect.bottom() + 1,
 431                     curr.right(), curr.bottom());
 432     if (extra.valid()) result.push_back(extra);
 433   }
 434   return result;
 435 }
 436
 437
 438 static bool rowRLBT(const Rect &first, const Rect &second) {
 439   if (first.bottom() == second.bottom())
 440     return first.right() > second.right();
 441   return first.bottom() > second.bottom();
 442 }
 443
 444 static bool rowRLTB(const Rect &first, const Rect &second) {
 445   if (first.y() == second.y())
 446     return first.right() > second.right();
 447   return first.y() < second.y();
 448 }
 449
 450 static bool rowLRBT(const Rect &first, const Rect &second) {
 451   if (first.bottom() == second.bottom())
 452     return first.x() < second.x();
 453   return first.bottom() > second.bottom();
 454 }
 455
 456 static bool rowLRTB(const Rect &first, const Rect &second) {
 457   if (first.y() == second.y())
 458     return first.x() < second.x();
 459   return first.y() < second.y();
 460 }
 461
 462 static bool colLRTB(const Rect &first, const Rect &second) {
 463   if (first.x() == second.x())
 464     return first.y() < second.y();
 465   return first.x() < second.x();
 466 }
 467
 468 static bool colLRBT(const Rect &first, const Rect &second) {
 469   if (first.x() == second.x())
 470     return first.bottom() > second.bottom();
 471   return first.x() < second.x();
 472 }
 473
 474 static bool colRLTB(const Rect &first, const Rect &second) {
 475   if (first.right() == second.right())
 476     return first.y() < second.y();
 477   return first.right() > second.right();
 478 }
 479
 480 static bool colRLBT(const Rect &first, const Rect &second) {
 481   if (first.right() == second.right())
 482     return first.bottom() > second.bottom();
 483   return first.right() > second.right();
 484 }
 485
 486
 487 bool Workspace::smartPlacement(Rect& win, const Rect& availableArea) {
 488   rectList spaces;
 489   spaces.push_back(availableArea); //initially the entire screen is free
 490
 491   //Find Free Spaces
 492   BlackboxWindowList::const_iterator wit = windowList.begin(),
 493     end = windowList.end();
 494   Rect tmp;
 495   for (; wit != end; ++wit) {
 496     const BlackboxWindow* const curr = *wit;
 497
 498     if (curr->isShaded()) continue;
 499
 500     tmp.setRect(curr->frameRect().x(), curr->frameRect().y(),
 501                 curr->frameRect().width() + screen->getBorderWidth(),
 502                 curr->frameRect().height() + screen->getBorderWidth());
 503
 504     spaces = calcSpace(tmp, spaces);
 505   }
 506
 507   if (screen->getPlacementPolicy() == BScreen::RowSmartPlacement) {
 508     if(screen->getRowPlacementDirection() == BScreen::LeftRight) {
 509       if(screen->getColPlacementDirection() == BScreen::TopBottom)
 510         std::sort(spaces.begin(), spaces.end(), rowLRTB);
 511       else
 512         std::sort(spaces.begin(), spaces.end(), rowLRBT);
 513     } else {
 514       if(screen->getColPlacementDirection() == BScreen::TopBottom)
 515         std::sort(spaces.begin(), spaces.end(), rowRLTB);
 516       else
 517         std::sort(spaces.begin(), spaces.end(), rowRLBT);
 518     }
 519   } else {
 520     if(screen->getColPlacementDirection() == BScreen::TopBottom) {
 521       if(screen->getRowPlacementDirection() == BScreen::LeftRight)
 522         std::sort(spaces.begin(), spaces.end(), colLRTB);
 523       else
 524         std::sort(spaces.begin(), spaces.end(), colRLTB);
 525     } else {
 526       if(screen->getRowPlacementDirection() == BScreen::LeftRight)
 527         std::sort(spaces.begin(), spaces.end(), colLRBT);
 528       else
 529         std::sort(spaces.begin(), spaces.end(), colRLBT);
 530     }
 531   }
 532
 533   rectList::const_iterator sit = spaces.begin(), spaces_end = spaces.end();
 534   for(; sit != spaces_end; ++sit) {
 535     if (sit->width() >= win.width() && sit->height() >= win.height())
 536       break;
 537   }
 538
 539   if (sit == spaces_end)
 540     return False;
 541
 542   //set new position based on the empty space found
 543   const Rect& where = *sit;
 544   win.setX(where.x());
 545   win.setY(where.y());
 546
 547   // adjust the location() based on left/right and top/bottom placement
 548   if (screen->getPlacementPolicy() == BScreen::RowSmartPlacement) {
 549     if (screen->getRowPlacementDirection() == BScreen::RightLeft)
 550       win.setX(where.right() - win.width());
 551     if (screen->getColPlacementDirection() == BScreen::BottomTop)
 552       win.setY(where.bottom() - win.height());
 553   } else {
 554     if (screen->getColPlacementDirection() == BScreen::BottomTop)
 555       win.setY(win.y() + where.height() - win.height());
 556     if (screen->getRowPlacementDirection() == BScreen::RightLeft)
 557       win.setX(win.x() + where.width() - win.width());
 558   }
 559   return True;
 560 }
 561
 562
 563 bool Workspace::underMousePlacement(Rect &win, const Rect &availableArea) {
 564   int x, y, rx, ry;
 565   Window c, r;
 566   unsigned int m;
 567   XQueryPointer(screen->getBlackbox()->getXDisplay(), screen->getRootWindow(),
 568                 &r, &c, &rx, &ry, &x, &y, &m);
 569   x = rx - win.width() / 2;
 570   y = ry - win.height() / 2;
 571
 572   if (x < availableArea.x())
 573     x = availableArea.x();
 574   if (y < availableArea.y())
 575     y = availableArea.y();
 576   if (x + win.width() > availableArea.x() + availableArea.width())
 577     x = availableArea.x() + availableArea.width() - win.width();
 578   if (y + win.height() > availableArea.y() + availableArea.height())
 579     y = availableArea.y() + availableArea.height() - win.height();
 580
 581   win.setX(x);
 582   win.setY(y);
 583
 584   return True;
 585 }
 586
 587
 588 bool Workspace::cascadePlacement(Rect &win, const Rect &availableArea) {
 589   if ((cascade_x > static_cast<signed>(availableArea.width() / 2)) ||
 590       (cascade_y > static_cast<signed>(availableArea.height() / 2)))
 591     cascade_x = cascade_y = 32;
 592
 593   if (cascade_x == 32) {
 594     cascade_x += availableArea.x();
 595     cascade_y += availableArea.y();
 596   }
 597
 598   win.setPos(cascade_x, cascade_y);
 599
 600   return True;
 601 }
 602
 603
 604 void Workspace::placeWindow(BlackboxWindow *win) {
 605   Rect availableArea(screen->availableArea()),
 606     new_win(availableArea.x(), availableArea.y(),
 607             win->frameRect().width(), win->frameRect().height());
 608   bool placed = False;
 609
 610   switch (screen->getPlacementPolicy()) {
 611   case BScreen::RowSmartPlacement:
 612   case BScreen::ColSmartPlacement:
 613     placed = smartPlacement(new_win, availableArea);
 614     break;
 615   case BScreen::UnderMousePlacement:
 616     placed = underMousePlacement(new_win, availableArea);
 617   default:
 618     break; // handled below
 619   } // switch
 620
 621   if (placed == False) {
 622     cascadePlacement(new_win, availableArea);
 623     cascade_x += win->getTitleHeight() + (screen->getBorderWidth() * 2);
 624     cascade_y += win->getTitleHeight() + (screen->getBorderWidth() * 2);
 625   }
 626
 627   if (new_win.right() > availableArea.right())
 628     new_win.setX(availableArea.left());
 629   if (new_win.bottom() > availableArea.bottom())
 630     new_win.setY(availableArea.top());
 631   win->configure(new_win.x(), new_win.y(), new_win.width(), new_win.height());
 632 }