kwin Library API Documentation

geometry.cpp

00001 /*****************************************************************
00002  KWin - the KDE window manager
00003  This file is part of the KDE project.
00004 
00005 Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
00006 Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
00007 
00008 You can Freely distribute this program under the GNU General Public
00009 License. See the file "COPYING" for the exact licensing terms.
00010 ******************************************************************/
00011 
00012 /*
00013 
00014  This file contains things relevant to geometry, i.e. workspace size,
00015  window positions and window sizes.
00016 
00017 */
00018 
00019 #include "client.h"
00020 #include "workspace.h"
00021 
00022 #include <kapplication.h>
00023 #include <kglobal.h>
00024 #include <qpainter.h>
00025 #include <kwin.h>
00026 
00027 #include "placement.h"
00028 #include "notifications.h"
00029 #include "geometrytip.h"
00030 #include "rules.h"
00031 
00032 extern Time qt_x_time;
00033 
00034 namespace KWinInternal
00035 {
00036 
00037 //********************************************
00038 // Workspace
00039 //********************************************
00040 
00044 void Workspace::desktopResized()
00045     {
00046     updateClientArea();
00047     checkElectricBorders( true );
00048     }
00049 
00062 void Workspace::updateClientArea( bool force )
00063     {
00064     QDesktopWidget *desktopwidget = KApplication::desktop();
00065     int nscreens = desktopwidget -> numScreens ();
00066 //    kdDebug () << "screens: " << nscreens << endl;
00067     QRect* new_wareas = new QRect[ numberOfDesktops() + 1 ];
00068     QRect** new_sareas = new QRect*[ numberOfDesktops() + 1];
00069     QRect* screens = new QRect [ nscreens ];
00070     QRect desktopArea = desktopwidget -> geometry ();
00071     for( int iS = 0;
00072             iS < nscreens;
00073             iS ++ )
00074         {
00075             screens [iS] = desktopwidget -> screenGeometry (iS);
00076         }
00077     for( int i = 1;
00078             i <= numberOfDesktops();
00079             ++i )
00080         {
00081             new_wareas[ i ] = desktopArea;
00082             new_sareas[ i ] = new QRect [ nscreens ];
00083             for( int iS = 0;
00084                     iS < nscreens;
00085                     iS ++ )
00086                 new_sareas[ i ][ iS ] = screens[ iS ];
00087         }
00088     for ( ClientList::ConstIterator it = clients.begin(); it != clients.end(); ++it)
00089         {
00090             QRect r = (*it)->adjustedClientArea( desktopArea, desktopArea );
00091             if( r == desktopArea ) // should be sufficient
00092                 continue;
00093             if( (*it)->isOnAllDesktops())
00094                 for( int i = 1;
00095                         i <= numberOfDesktops();
00096                         ++i )
00097                     {
00098                         new_wareas[ i ] = new_wareas[ i ].intersect( r );
00099                         for( int iS = 0;
00100                                 iS < nscreens;
00101                                 iS ++ )
00102                             new_sareas[ i ][ iS ] =
00103                                 new_sareas[ i ][ iS ].intersect(
00104                                         (*it)->adjustedClientArea( desktopArea, screens[ iS ] )
00105                                     );
00106                     }
00107             else
00108                 {
00109                     new_wareas[ (*it)->desktop() ] = new_wareas[ (*it)->desktop() ].intersect( r );
00110                     for( int iS = 0;
00111                             iS < nscreens;
00112                             iS ++ )
00113                         {
00114 //                            kdDebug () << "adjusting new_sarea: " << screens[ iS ] << endl;
00115                             new_sareas[ (*it)->desktop() ][ iS ] =
00116                                 new_sareas[ (*it)->desktop() ][ iS ].intersect(
00117                                         (*it)->adjustedClientArea( desktopArea, screens[ iS ] )
00118                                         );
00119                         }
00120                 }
00121         }
00122 #if 0
00123     for( int i = 1;
00124             i <= numberOfDesktops();
00125             ++i )
00126         {
00127             for( int iS = 0;
00128                     iS < nscreens;
00129                     iS ++ )
00130                 kdDebug () << "new_sarea: " << new_sareas[ i ][ iS ] << endl;
00131         }
00132 #endif
00133     // TODO topmenu update for screenarea changes?
00134     if( topmenu_space != NULL )
00135         {
00136         QRect topmenu_area = desktopArea;
00137         topmenu_area.setTop( topMenuHeight());
00138         for( int i = 1;
00139              i <= numberOfDesktops();
00140              ++i )
00141             new_wareas[ i ] = new_wareas[ i ].intersect( topmenu_area );
00142         }
00143 
00144     bool changed = force;
00145 
00146     if (! screenarea)
00147         changed = true;
00148 
00149     for( int i = 1;
00150          !changed && i <= numberOfDesktops();
00151          ++i )
00152         {
00153             if( workarea[ i ] != new_wareas[ i ] )
00154                 changed = true;
00155             for( int iS = 0;
00156                     iS < nscreens;
00157                     iS ++ )
00158                 if (new_sareas[ i ][ iS ] != screenarea [ i ][ iS ])
00159                     changed = true;
00160         }
00161 
00162     if ( changed )
00163         {
00164         delete[] workarea;
00165         workarea = new_wareas;
00166         new_wareas = NULL;
00167         delete[] screenarea;
00168         screenarea = new_sareas;
00169         new_sareas = NULL;
00170         NETRect r;
00171         for( int i = 1; i <= numberOfDesktops(); i++)
00172             {
00173             r.pos.x = workarea[ i ].x();
00174             r.pos.y = workarea[ i ].y();
00175             r.size.width = workarea[ i ].width();
00176             r.size.height = workarea[ i ].height();
00177             rootInfo->setWorkArea( i, r );
00178             }
00179 
00180         updateTopMenuGeometry();
00181         for( ClientList::ConstIterator it = clients.begin();
00182              it != clients.end();
00183              ++it)
00184             (*it)->checkWorkspacePosition();
00185         for( ClientList::ConstIterator it = desktops.begin();
00186              it != desktops.end();
00187              ++it)
00188             (*it)->checkWorkspacePosition();
00189         }
00190     delete[] screens;
00191     delete[] new_sareas;
00192     delete[] new_wareas;
00193     }
00194 
00195 void Workspace::updateClientArea()
00196     {
00197     updateClientArea( false );
00198     }
00199 
00200 
00208 QRect Workspace::clientArea( clientAreaOption opt, const QPoint& p, int desktop ) const
00209     {
00210     if( desktop == NETWinInfo::OnAllDesktops || desktop == 0 )
00211         desktop = currentDesktop();
00212     QDesktopWidget *desktopwidget = KApplication::desktop();
00213     int screen = desktopwidget->screenNumber( p );
00214     if( screen < 0 )
00215         screen = desktopwidget->primaryScreen();
00216     QRect sarea = screenarea // may be NULL during KWin initialization
00217         ? screenarea[ desktop ][ screen ]
00218         : desktopwidget->screenGeometry( screen );
00219     QRect warea = workarea[ desktop ].isNull()
00220         ? QApplication::desktop()->geometry()
00221         : workarea[ desktop ];
00222     switch (opt)
00223         {
00224         case MaximizeArea:
00225             if (options->xineramaMaximizeEnabled)
00226                 return sarea;
00227             else
00228                 return warea;
00229         case MaximizeFullArea:
00230             if (options->xineramaMaximizeEnabled)
00231                 return desktopwidget->screenGeometry( screen );
00232             else
00233                 return desktopwidget->geometry();
00234         case FullScreenArea:
00235             if (options->xineramaFullscreenEnabled)
00236                 return desktopwidget->screenGeometry( screen );
00237             else
00238                 return desktopwidget->geometry();
00239         case PlacementArea:
00240             if (options->xineramaPlacementEnabled)
00241                 return sarea;
00242             else
00243                 return warea;
00244         case MovementArea:
00245             if (options->xineramaMovementEnabled)
00246                 return desktopwidget->screenGeometry( screen );
00247             else
00248                 return desktopwidget->geometry();
00249         case WorkArea:
00250             return warea;
00251         case FullArea:
00252             return desktopwidget->geometry();
00253         case ScreenArea:
00254             return sarea;
00255         }
00256     assert( false );
00257     return QRect();
00258     }
00259 
00260 QRect Workspace::clientArea( clientAreaOption opt, const Client* c ) const
00261     {
00262     return clientArea( opt, c->geometry().center(), c->desktop());
00263     }
00264 
00270 QPoint Workspace::adjustClientPosition( Client* c, QPoint pos )
00271     {
00272    //CT 16mar98, 27May98 - magics: BorderSnapZone, WindowSnapZone
00273    //CT adapted for kwin on 25Nov1999
00274    //aleXXX 02Nov2000 added second snapping mode
00275     if (options->windowSnapZone || options->borderSnapZone )
00276         {
00277         const bool sOWO=options->snapOnlyWhenOverlapping;
00278         const QRect maxRect = clientArea(MovementArea, pos+c->rect().center(), c->desktop());
00279         const int xmin = maxRect.left();
00280         const int xmax = maxRect.right()+1;               //desk size
00281         const int ymin = maxRect.top();
00282         const int ymax = maxRect.bottom()+1;
00283 
00284         const int cx(pos.x());
00285         const int cy(pos.y());
00286         const int cw(c->width());
00287         const int ch(c->height());
00288         const int rx(cx+cw);
00289         const int ry(cy+ch);                 //these don't change
00290 
00291         int nx(cx), ny(cy);                         //buffers
00292         int deltaX(xmax);
00293         int deltaY(ymax);   //minimum distance to other clients
00294 
00295         int lx, ly, lrx, lry; //coords and size for the comparison client, l
00296 
00297       // border snap
00298         int snap = options->borderSnapZone; //snap trigger
00299         if (snap)
00300             {
00301             if ((sOWO?(cx<xmin):true) && (QABS(xmin-cx)<snap))
00302                 {
00303                 deltaX = xmin-cx;
00304                 nx = xmin;
00305                 }
00306             if ((sOWO?(rx>xmax):true) && (QABS(rx-xmax)<snap) && (QABS(xmax-rx) < deltaX))
00307                 {
00308                 deltaX = rx-xmax;
00309                 nx = xmax - cw;
00310                 }
00311 
00312             if ((sOWO?(cy<ymin):true) && (QABS(ymin-cy)<snap))
00313                 {
00314                 deltaY = ymin-cy;
00315                 ny = ymin;
00316                 }
00317             if ((sOWO?(ry>ymax):true) && (QABS(ry-ymax)<snap) && (QABS(ymax-ry) < deltaY))
00318                 {
00319                 deltaY =ry-ymax;
00320                 ny = ymax - ch;
00321                 }
00322             }
00323 
00324       // windows snap
00325         snap = options->windowSnapZone;
00326         if (snap)
00327             {
00328             QValueList<Client *>::ConstIterator l;
00329             for (l = clients.begin();l != clients.end();++l )
00330                 {
00331                 if ((*l)->isOnDesktop(currentDesktop()) &&
00332                    !(*l)->isMinimized()
00333                     && (*l) != c )
00334                     {
00335                     lx = (*l)->x();
00336                     ly = (*l)->y();
00337                     lrx = lx + (*l)->width();
00338                     lry = ly + (*l)->height();
00339 
00340                     if ( (( cy <= lry ) && ( cy  >= ly  ))  ||
00341                          (( ry >= ly  ) && ( ry  <= lry ))  ||
00342                          (( cy <= ly  ) && ( ry >= lry  )) )
00343                         {
00344                         if ((sOWO?(cx<lrx):true) && (QABS(lrx-cx)<snap) && ( QABS(lrx -cx) < deltaX) )
00345                             {
00346                             deltaX = QABS( lrx - cx );
00347                             nx = lrx;
00348                             }
00349                         if ((sOWO?(rx>lx):true) && (QABS(rx-lx)<snap) && ( QABS( rx - lx )<deltaX) )
00350                             {
00351                             deltaX = QABS(rx - lx);
00352                             nx = lx - cw;
00353                             }
00354                         }
00355 
00356                     if ( (( cx <= lrx ) && ( cx  >= lx  ))  ||
00357                          (( rx >= lx  ) && ( rx  <= lrx ))  ||
00358                          (( cx <= lx  ) && ( rx >= lrx  )) )
00359                         {
00360                         if ((sOWO?(cy<lry):true) && (QABS(lry-cy)<snap) && (QABS( lry -cy ) < deltaY))
00361                             {
00362                             deltaY = QABS( lry - cy );
00363                             ny = lry;
00364                             }
00365                   //if ( (QABS( ry-ly ) < snap) && (QABS( ry - ly ) < deltaY ))
00366                         if ((sOWO?(ry>ly):true) && (QABS(ry-ly)<snap) && (QABS( ry - ly ) < deltaY ))
00367                             {
00368                             deltaY = QABS( ry - ly );
00369                             ny = ly - ch;
00370                             }
00371                         }
00372                     }
00373                 }
00374             }
00375         pos = QPoint(nx, ny);
00376         }
00377     return pos;
00378     }
00379 
00380 QRect Workspace::adjustClientSize( Client* c, QRect moveResizeGeom, int mode )
00381     {
00382    //adapted from adjustClientPosition on 29May2004
00383    //this function is called when resizing a window and will modify
00384    //the new dimensions to snap to other windows/borders if appropriate
00385     if ( options->windowSnapZone || options->borderSnapZone  )
00386         {
00387         const bool sOWO=options->snapOnlyWhenOverlapping;
00388 
00389         const QRect maxRect = clientArea(MovementArea, c->rect().center(), c->desktop());
00390         const int xmin = maxRect.left();
00391         const int xmax = maxRect.right();               //desk size
00392         const int ymin = maxRect.top();
00393         const int ymax = maxRect.bottom();
00394 
00395         const int cx(moveResizeGeom.left());
00396         const int cy(moveResizeGeom.top());
00397         const int rx(moveResizeGeom.right());
00398         const int ry(moveResizeGeom.bottom());
00399 
00400         int newcx(cx), newcy(cy);                         //buffers
00401         int newrx(rx), newry(ry);
00402         int deltaX(xmax);
00403         int deltaY(ymax);   //minimum distance to other clients
00404 
00405         int lx, ly, lrx, lry; //coords and size for the comparison client, l
00406 
00407       // border snap
00408         int snap = options->borderSnapZone; //snap trigger
00409         if (snap)
00410             {
00411             deltaX = int(snap);
00412             deltaY = int(snap);
00413 
00414 #define SNAP_BORDER_TOP \
00415             if ((sOWO?(newcy<ymin):true) && (QABS(ymin-newcy)<deltaY)) \
00416               { \
00417                 deltaY = QABS(ymin-newcy); \
00418                 newcy = ymin; \
00419                }
00420 
00421 #define SNAP_BORDER_BOTTOM \
00422             if ((sOWO?(newry>ymax):true) && (QABS(ymax-newry)<deltaY)) \
00423               { \
00424                 deltaY = QABS(ymax-newcy); \
00425                 newry = ymax; \
00426                }
00427 
00428 #define SNAP_BORDER_LEFT \
00429             if ((sOWO?(newcx<xmin):true) && (QABS(xmin-newcx)<deltaX)) \
00430               { \
00431                 deltaX = QABS(xmin-newcx); \
00432                 newcx = xmin; \
00433                }
00434 
00435 #define SNAP_BORDER_RIGHT \
00436             if ((sOWO?(newrx>xmax):true) && (QABS(xmax-newrx)<deltaX)) \
00437               { \
00438                 deltaX = QABS(xmax-newrx); \
00439                 newrx = xmax; \
00440                }
00441                      switch ( mode )
00442                       {
00443                       case PositionBottomRight:
00444                         SNAP_BORDER_BOTTOM
00445                         SNAP_BORDER_RIGHT
00446                         break;
00447                       case PositionRight:
00448                         SNAP_BORDER_RIGHT
00449                         break;
00450                       case PositionBottom:
00451                         SNAP_BORDER_BOTTOM
00452                         break;
00453                       case PositionTopLeft:
00454                         SNAP_BORDER_TOP
00455                         SNAP_BORDER_LEFT
00456                         break;
00457                       case PositionLeft:
00458                         SNAP_BORDER_LEFT
00459                         break;
00460                       case PositionTop:
00461                         SNAP_BORDER_TOP
00462                         break;
00463                       case PositionTopRight:
00464                         SNAP_BORDER_TOP
00465                         SNAP_BORDER_RIGHT
00466                         break;
00467                       case PositionBottomLeft:
00468                         SNAP_BORDER_BOTTOM
00469                         SNAP_BORDER_LEFT
00470                         break;
00471                       default:
00472                         assert( false );
00473                         break;
00474                       }
00475 
00476 
00477             }
00478 
00479       // windows snap
00480         snap = options->windowSnapZone;
00481         if (snap)
00482             {
00483             deltaX = int(snap);
00484             deltaY = int(snap);
00485             QValueList<Client *>::ConstIterator l;
00486             for (l = clients.begin();l != clients.end();++l )
00487                 {
00488                 if ((*l)->isOnDesktop(currentDesktop()) &&
00489                    !(*l)->isMinimized()
00490                     && (*l) != c )
00491                     {
00492                     lx = (*l)->x()-1;
00493                     ly = (*l)->y()-1;
00494                     lrx =(*l)->x() + (*l)->width();
00495                     lry =(*l)->y() + (*l)->height();
00496 
00497 #define WITHIN_HEIGHT ((( newcy <= lry ) && ( newcy  >= ly  ))  || \
00498                          (( newry >= ly  ) && ( newry  <= lry ))  || \
00499                          (( newcy <= ly  ) && ( newry >= lry  )) )
00500 
00501 #define WITHIN_WIDTH  ( (( cx <= lrx ) && ( cx  >= lx  ))  || \
00502                          (( rx >= lx  ) && ( rx  <= lrx ))  || \
00503                          (( cx <= lx  ) && ( rx >= lrx  )) )
00504 
00505 #define SNAP_WINDOW_TOP  if ( (sOWO?(newcy<lry):true) \
00506                   && WITHIN_WIDTH  \
00507                   && (QABS( lry - newcy ) < deltaY) ) {  \
00508                   deltaY = QABS( lry - newcy ); \
00509                   newcy=lry; \
00510                   }
00511 
00512 #define SNAP_WINDOW_BOTTOM  if ( (sOWO?(newry>ly):true)  \
00513                      && WITHIN_WIDTH  \
00514                      && (QABS( ly - newry ) < deltaY) ) {  \
00515                      deltaY = QABS( ly - newry );  \
00516                      newry=ly;  \
00517                      }
00518 
00519 #define SNAP_WINDOW_LEFT  if ( (sOWO?(newcx<lrx):true)  \
00520                    && WITHIN_HEIGHT  \
00521                    && (QABS( lrx - newcx ) < deltaX)) {  \
00522                    deltaX = QABS( lrx - newcx );  \
00523                    newcx=lrx;  \
00524                    }
00525 
00526 #define SNAP_WINDOW_RIGHT  if ( (sOWO?(newrx>lx):true)  \
00527                     && WITHIN_HEIGHT  \
00528                     && (QABS( lx - newrx ) < deltaX))  \
00529                     {  \
00530                     deltaX = QABS( lx - newrx );  \
00531                     newrx=lx;  \
00532                     }
00533 
00534                     switch ( mode )
00535                       {
00536                       case PositionBottomRight:
00537                         SNAP_WINDOW_BOTTOM
00538                         SNAP_WINDOW_RIGHT
00539                         break;
00540                       case PositionRight:
00541                         SNAP_WINDOW_RIGHT
00542                         break;
00543                       case PositionBottom:
00544                         SNAP_WINDOW_BOTTOM
00545                         break;
00546                       case PositionTopLeft:
00547                         SNAP_WINDOW_TOP
00548                         SNAP_WINDOW_LEFT
00549                         break;
00550                       case PositionLeft:
00551                         SNAP_WINDOW_LEFT
00552                         break;
00553                       case PositionTop:
00554                         SNAP_WINDOW_TOP
00555                         break;
00556                       case PositionTopRight:
00557                         SNAP_WINDOW_TOP
00558                         SNAP_WINDOW_RIGHT
00559                         break;
00560                       case PositionBottomLeft:
00561                         SNAP_WINDOW_BOTTOM
00562                         SNAP_WINDOW_LEFT
00563                         break;
00564                       default:
00565                         assert( false );
00566                         break;
00567                       }
00568                     }
00569                 }
00570             }
00571        moveResizeGeom = QRect(QPoint(newcx, newcy), QPoint(newrx, newry));
00572        }
00573     return moveResizeGeom;
00574     }
00575 
00579 void Workspace::setClientIsMoving( Client *c )
00580     {
00581     Q_ASSERT(!c || !movingClient); // Catch attempts to move a second
00582     // window while still moving the first one.
00583     movingClient = c;
00584     if (movingClient)
00585         ++block_focus;
00586     else
00587         --block_focus;
00588     }
00589 
00593 void Workspace::cascadeDesktop()
00594     {
00595 // TODO XINERAMA this probably is not right for xinerama
00596     Q_ASSERT( block_stacking_updates == 0 );
00597     ClientList::ConstIterator it(stackingOrder().begin());
00598     bool re_init_cascade_at_first_client = true;
00599     for (; it != stackingOrder().end(); ++it)
00600         {
00601         if((!(*it)->isOnDesktop(currentDesktop())) ||
00602            ((*it)->isMinimized())                  ||
00603            ((*it)->isOnAllDesktops())              ||
00604            (!(*it)->isMovable()) )
00605             continue;
00606         initPositioning->placeCascaded(*it, QRect(), re_init_cascade_at_first_client);
00607         //CT is an if faster than an attribution?
00608         if (re_init_cascade_at_first_client)
00609           re_init_cascade_at_first_client = false;
00610         }
00611     }
00612 
00617 void Workspace::unclutterDesktop()
00618     {
00619     ClientList::Iterator it(clients.fromLast());
00620     for (; it != clients.end(); --it)
00621         {
00622         if((!(*it)->isOnDesktop(currentDesktop())) ||
00623            ((*it)->isMinimized())                  ||
00624            ((*it)->isOnAllDesktops())              ||
00625            (!(*it)->isMovable()) )
00626             continue;
00627         initPositioning->placeSmart(*it, QRect());
00628         }
00629     }
00630 
00631 
00632 void Workspace::updateTopMenuGeometry( Client* c )
00633     {
00634     if( !managingTopMenus())
00635         return;
00636     if( c != NULL )
00637         {
00638         XEvent ev;
00639         ev.xclient.display = qt_xdisplay();
00640         ev.xclient.type = ClientMessage;
00641         ev.xclient.window = c->window();
00642         static Atom msg_type_atom = XInternAtom( qt_xdisplay(), "_KDE_TOPMENU_MINSIZE", False );
00643         ev.xclient.message_type = msg_type_atom;
00644         ev.xclient.format = 32;
00645         ev.xclient.data.l[0] = qt_x_time;
00646         ev.xclient.data.l[1] = topmenu_space->width();
00647         ev.xclient.data.l[2] = topmenu_space->height();
00648         ev.xclient.data.l[3] = 0;
00649         ev.xclient.data.l[4] = 0;
00650         XSendEvent( qt_xdisplay(), c->window(), False, NoEventMask, &ev );
00651         KWin::setStrut( c->window(), 0, 0, topmenu_height, 0 ); // so that kicker etc. know
00652         c->checkWorkspacePosition();
00653         return;
00654         }
00655     // c == NULL - update all, including topmenu_space
00656     QRect area;
00657     area = clientArea( MaximizeFullArea, QPoint( 0, 0 ), 1 ); // HACK desktop ?
00658     area.setHeight( topMenuHeight());
00659     topmenu_space->setGeometry( area );
00660     for( ClientList::ConstIterator it = topmenus.begin();
00661          it != topmenus.end();
00662          ++it )
00663         updateTopMenuGeometry( *it );
00664     }
00665 
00666 //********************************************
00667 // Client
00668 //********************************************
00669 
00670 
00671 void Client::keepInArea( QRect area, bool partial )
00672     {
00673     if( partial )
00674         {
00675         // increase the area so that can have only 100 pixels in the area
00676         area.setLeft( QMIN( area.left() - width() + 100, area.left()));
00677         area.setTop( QMIN( area.top() - height() + 100, area.top()));
00678         area.setRight( QMAX( area.right() + width() - 100, area.right()));
00679         area.setBottom( QMAX( area.bottom() + height() - 100, area.bottom()));
00680         }
00681     if ( geometry().right() > area.right() && width() < area.width() )
00682         move( area.right() - width(), y() );
00683     if ( geometry().bottom() > area.bottom() && height() < area.height() )
00684         move( x(), area.bottom() - height() );
00685     if( !area.contains( geometry().topLeft() ))
00686         {
00687         int tx = x();
00688         int ty = y();
00689         if ( tx < area.x() )
00690             tx = area.x();
00691         if ( ty < area.y() )
00692             ty = area.y();
00693         move( tx, ty );
00694         }
00695     }
00696 
00702 // TODO move to Workspace?
00703 
00704 QRect Client::adjustedClientArea( const QRect &desktopArea, const QRect& area ) const
00705     {
00706     QRect r = area;
00707     // topmenu area is reserved in updateClientArea()
00708     if( isTopMenu())
00709         return r;
00710     NETExtendedStrut str = strut();
00711     QRect stareaL = QRect(
00712             0,
00713             str . left_start,
00714             str . left_width,
00715             str . left_end - str . left_start + 1 );
00716     QRect stareaR = QRect (
00717             desktopArea . right () - str . right_width + 1,
00718             str . right_start,
00719             str . right_width,
00720             str . right_end - str . right_start + 1 );
00721     QRect stareaT = QRect (
00722             str . top_start,
00723             0,
00724             str . top_end - str . top_start + 1,
00725             str . top_width);
00726     QRect stareaB = QRect (
00727             str . bottom_start,
00728             desktopArea . bottom () - str . bottom_width + 1,
00729             str . bottom_end - str . bottom_start + 1,
00730             str . bottom_width);
00731 
00732     NETExtendedStrut ext = info->extendedStrut();
00733     if( ext.left_width == 0 && ext.right_width == 0 && ext.top_width == 0 && ext.bottom_width == 0
00734         && ( str.left_width != 0 || str.right_width != 0 || str.top_width != 0 || str.bottom_width != 0 )) {
00735 
00736         // hack, might cause problems... this tries to guess the start/end of a
00737         // non-extended strut; only works on windows that have exact same
00738         // geometry as their strut (ie, if the geometry fits the width
00739         // exactly, we will adjust length of strut to match the geometry as well;
00740         // otherwise we use the full-edge strut)
00741 
00742         if (stareaT.top() == geometry().top() && stareaT.bottom() == geometry().bottom()) {
00743             stareaT.setLeft(geometry().left());
00744             stareaT.setRight(geometry().right());
00745 //            kdDebug () << "Trimming top-strut to geometry() to: " << stareaT << endl;
00746         }
00747         if (stareaB.top() == geometry().top() && stareaB.bottom() == geometry().bottom()) {
00748             stareaB.setLeft(geometry().left());
00749             stareaB.setRight(geometry().right());
00750 //            kdDebug () << "Trimming bottom-strut to geometry(): " << stareaB << endl;
00751         }
00752         if (stareaL.left() == geometry().left() && stareaL.right() == geometry().right()) {
00753             stareaL.setTop(geometry().top());
00754             stareaL.setBottom(geometry().bottom());
00755 //            kdDebug () << "Trimming left-strut to geometry(): " << stareaL << endl;
00756         }
00757         if (stareaR.left() == geometry().left() && stareaR.right() == geometry().right()) {
00758             stareaR.setTop(geometry().top());
00759             stareaR.setBottom(geometry().bottom());
00760 //            kdDebug () << "Trimming right-strut to geometry(): " << stareaR << endl;
00761         }
00762     }
00763     if (stareaL . intersects (area)) {
00764 //        kdDebug () << "Moving left of: " << r << " to " << stareaL.right() + 1 << endl;
00765         r . setLeft( stareaL . right() + 1 );
00766     }
00767     if (stareaR . intersects (area)) {
00768 //        kdDebug () << "Moving right of: " << r << " to " << stareaR.left() - 1 << endl;
00769         r . setRight( stareaR . left() - 1 );
00770     }
00771     if (stareaT . intersects (area)) {
00772 //        kdDebug () << "Moving top of: " << r << " to " << stareaT.bottom() + 1 << endl;
00773         r . setTop( stareaT . bottom() + 1 );
00774     }
00775     if (stareaB . intersects (area)) {
00776 //        kdDebug () << "Moving bottom of: " << r << " to " << stareaB.top() - 1 << endl;
00777         r . setBottom( stareaB . top() - 1 );
00778     }
00779     return r;
00780     }
00781 
00782 NETExtendedStrut Client::strut() const
00783     {
00784     NETExtendedStrut ext = info->extendedStrut();
00785     NETStrut str = info->strut();
00786     if( ext.left_width == 0 && ext.right_width == 0 && ext.top_width == 0 && ext.bottom_width == 0
00787         && ( str.left != 0 || str.right != 0 || str.top != 0 || str.bottom != 0 ))
00788         {
00789         // build extended from simple
00790         if( str.left != 0 )
00791             {
00792             ext.left_width = str.left;
00793             ext.left_start = 0;
00794             ext.left_end = XDisplayHeight( qt_xdisplay(), DefaultScreen( qt_xdisplay()));
00795             }
00796         if( str.right != 0 )
00797             {
00798             ext.right_width = str.right;
00799             ext.right_start = 0;
00800             ext.right_end = XDisplayHeight( qt_xdisplay(), DefaultScreen( qt_xdisplay()));
00801             }
00802         if( str.top != 0 )
00803             {
00804             ext.top_width = str.top;
00805             ext.top_start = 0;
00806             ext.top_end = XDisplayWidth( qt_xdisplay(), DefaultScreen( qt_xdisplay()));
00807             }
00808         if( str.bottom != 0 )
00809             {
00810             ext.bottom_width = str.bottom;
00811             ext.bottom_start = 0;
00812             ext.bottom_end = XDisplayWidth( qt_xdisplay(), DefaultScreen( qt_xdisplay()));
00813             }
00814         }
00815     return ext;
00816     }
00817 bool Client::hasStrut() const
00818     {
00819     NETExtendedStrut ext = strut();
00820     if( ext.left_width == 0 && ext.right_width == 0 && ext.top_width == 0 && ext.bottom_width == 0 )
00821         {
00822             return false;
00823         }
00824     return true;
00825     }
00826 
00827 
00828 // updates differences to workarea edges for all directions
00829 void Client::updateWorkareaDiffs()
00830     {
00831     QRect area = workspace()->clientArea( WorkArea, this );
00832     QRect geom = geometry();
00833     workarea_diff_x = computeWorkareaDiff( geom.left(), geom.right(), area.left(), area.right());
00834     workarea_diff_y = computeWorkareaDiff( geom.top(), geom.bottom(), area.top(), area.bottom());
00835     }
00836 
00837 // If the client was inside workarea in the x direction, and if it was close to the left/right
00838 // edge, return the distance from the left/right edge (negative for left, positive for right)
00839 // INT_MIN means 'not inside workarea', INT_MAX means 'not near edge'.
00840 // In order to recognize 'at the left workarea edge' from 'at the right workarea edge'
00841 // (i.e. negative vs positive zero), the distances are one larger in absolute value than they
00842 // really are (i.e. 5 pixels from the left edge is -6, not -5). A bit hacky, but I'm lazy
00843 // to rewrite it just to make it nicer. If this will ever get touched again, perhaps then.
00844 // the y direction is done the same, just the values will be rotated: top->left, bottom->right
00845 int Client::computeWorkareaDiff( int left, int right, int a_left, int a_right )
00846     {
00847     int left_diff = left - a_left;
00848     int right_diff = a_right - right;
00849     if( left_diff < 0 || right_diff < 0 )
00850         return INT_MIN;
00851     else // fully inside workarea in this direction direction
00852         {
00853         // max distance from edge where it's still considered to be close and is kept at that distance
00854         int max_diff = ( a_right - a_left ) / 10;
00855         if( left_diff < right_diff )
00856             return left_diff < max_diff ? -left_diff - 1 : INT_MAX;
00857         else if( left_diff > right_diff )
00858             return right_diff < max_diff ? right_diff + 1 : INT_MAX;
00859         return INT_MAX; // not close to workarea edge
00860         }
00861     }
00862 
00863 void Client::checkWorkspacePosition()
00864     {
00865     if( isDesktop())
00866         {
00867         QRect area = workspace()->clientArea( FullArea, this );
00868         if( geometry() != area )
00869             setGeometry( area );
00870         return;
00871         }
00872     if( maximizeMode() != MaximizeRestore )
00873     // TODO update geom_restore?
00874         changeMaximize( false, false, true ); // adjust size
00875 
00876     if( isFullScreen())
00877         {
00878         QRect area = workspace()->clientArea( FullScreenArea, this );
00879         if( geometry() != area )
00880             setGeometry( area );
00881         return;
00882         }
00883     if( isDock())
00884         return;
00885     if( isOverride())
00886         return; // I wish I knew what to do here :(
00887     if( isTopMenu())
00888         {
00889         if( workspace()->managingTopMenus())
00890             {
00891             QRect area;
00892             ClientList mainclients = mainClients();
00893             if( mainclients.count() == 1 )
00894                 area = workspace()->clientArea( MaximizeFullArea, mainclients.first());
00895             else
00896                 area = workspace()->clientArea( MaximizeFullArea, QPoint( 0, 0 ), desktop());
00897             area.setHeight( workspace()->topMenuHeight());
00898 //            kdDebug() << "TOPMENU size adjust: " << area << ":" << this << endl;
00899             setGeometry( area );
00900             }
00901         return;
00902         }
00903 
00904     if( !isShade()) // TODO
00905         {
00906         int old_diff_x = workarea_diff_x;
00907         int old_diff_y = workarea_diff_y;
00908         updateWorkareaDiffs();
00909 
00910         // this can be true only if this window was mapped before KWin
00911         // was started - in such case, don't adjust position to workarea,
00912         // because the window already had its position, and if a window
00913         // with a strut altering the workarea would be managed in initialization
00914         // after this one, this window would be moved
00915         if( workspace()->initializing())
00916             return;
00917 
00918         QRect area = workspace()->clientArea( WorkArea, this );
00919         QRect new_geom = geometry();
00920         QRect tmp_rect_x( new_geom.left(), 0, new_geom.width(), 0 );
00921         QRect tmp_area_x( area.left(), 0, area.width(), 0 );
00922         checkDirection( workarea_diff_x, old_diff_x, tmp_rect_x, tmp_area_x );
00923         // the x<->y swapping
00924         QRect tmp_rect_y( new_geom.top(), 0, new_geom.height(), 0 );
00925         QRect tmp_area_y( area.top(), 0, area.height(), 0 );
00926         checkDirection( workarea_diff_y, old_diff_y, tmp_rect_y, tmp_area_y );
00927         new_geom = QRect( tmp_rect_x.left(), tmp_rect_y.left(), tmp_rect_x.width(), tmp_rect_y.width());
00928         QRect final_geom( new_geom.topLeft(), adjustedSize( new_geom.size()));
00929         if( final_geom != new_geom ) // size increments, or size restrictions
00930             { // adjusted size differing matters only for right and bottom edge
00931             if( old_diff_x != INT_MAX && old_diff_x > 0 )
00932                 final_geom.moveRight( area.right() - ( old_diff_x - 1 ));
00933             if( old_diff_y != INT_MAX && old_diff_y > 0 )
00934                 final_geom.moveBottom( area.bottom() - ( old_diff_y - 1 ));
00935             }
00936         if( final_geom != geometry() )
00937             setGeometry( final_geom );
00938         //    updateWorkareaDiffs(); done already by setGeometry()
00939         }
00940     }
00941 
00942 // Try to be smart about keeping the clients visible.
00943 // If the client was fully inside the workspace before, try to keep
00944 // it still inside the workarea, possibly moving it or making it smaller if possible,
00945 // and try to keep the distance from the nearest workarea edge.
00946 // On the other hand, it it was partially moved outside of the workspace in some direction,
00947 // don't do anything with that direction if it's still at least partially visible. If it's
00948 // not visible anymore at all, make sure it's visible at least partially
00949 // again (not fully, as that could(?) be potentionally annoying) by
00950 // moving it slightly inside the workarea (those '+ 5').
00951 // Again, this is done for the x direction, y direction will be done by x<->y swapping
00952 void Client::checkDirection( int new_diff, int old_diff, QRect& rect, const QRect& area )
00953     {
00954     if( old_diff != INT_MIN ) // was inside workarea
00955         {
00956         if( old_diff == INT_MAX ) // was in workarea, but far from edge
00957             {
00958             if( new_diff == INT_MIN )  // is not anymore fully in workarea
00959                 {
00960                 rect.setLeft( area.left());
00961                 rect.setRight( area.right());
00962                 }
00963             return;
00964             }
00965         if( isMovable())
00966             {
00967             if( old_diff < 0 ) // was in left third, keep distance from left edge
00968                 rect.moveLeft( area.left() + ( -old_diff - 1 ));
00969             else // old_diff > 0 // was in right third, keep distance from right edge
00970                 rect.moveRight( area.right() - ( old_diff - 1 ));
00971             }
00972         else if( isResizable())
00973             {
00974             if( old_diff < 0 )
00975                 rect.setLeft( area.left() + ( -old_diff - 1 ) );
00976             else // old_diff > 0
00977                 rect.setRight( area.right() - ( old_diff - 1 ));
00978             }
00979         if( rect.width() > area.width() && isResizable())
00980             rect.setWidth( area.width());
00981         if( isMovable())
00982             {
00983             if( rect.left() < area.left())
00984                 rect.moveLeft( area.left());
00985             else if( rect.right() > area.right())
00986                 rect.moveRight( area.right());
00987             }
00988         }
00989     if( rect.right() < area.left() + 5 || rect.left() > area.right() - 5 )
00990         { // not visible (almost) at all - try to make it at least partially visible
00991         if( isMovable())
00992             {
00993             if( rect.left() < area.left() + 5 )
00994                 rect.moveRight( area.left() + 5 );
00995             if( rect.right() > area.right() - 5 )
00996                 rect.moveLeft( area.right() - 5 );
00997             }
00998         }
00999     }
01000 
01004 QSize Client::adjustedSize( const QSize& frame, Sizemode mode ) const
01005     {
01006     // first, get the window size for the given frame size s
01007 
01008     QSize wsize( frame.width() - ( border_left + border_right ),
01009              frame.height() - ( border_top + border_bottom ));
01010 
01011     return sizeForClientSize( wsize, mode, false );
01012     }
01013 
01022 QSize Client::sizeForClientSize( const QSize& wsize, Sizemode mode, bool noframe ) const
01023     {
01024     int w = wsize.width();
01025     int h = wsize.height();
01026     if (w<1) w = 1;
01027     if (h<1) h = 1;
01028 
01029     // basesize, minsize, maxsize, paspect and resizeinc have all values defined,
01030     // even if they're not set in flags - see getWmNormalHints()
01031     QSize min_size = minSize();
01032     QSize max_size = maxSize();
01033     if( decoration != NULL )
01034         {
01035         QSize decominsize = decoration->minimumSize();
01036         QSize border_size( border_left + border_right, border_top + border_bottom );
01037         if( border_size.width() > decominsize.width()) // just in case
01038             decominsize.setWidth( border_size.width());
01039         if( border_size.height() > decominsize.height())
01040             decominsize.setHeight( border_size.height());
01041         if( decominsize.width() > min_size.width())
01042                 min_size.setWidth( decominsize.width());
01043         if( decominsize.height() > min_size.height())
01044                 min_size.setHeight( decominsize.height());
01045         }
01046     w = QMIN( max_size.width(), w );
01047     h = QMIN( max_size.height(), h );
01048     w = QMAX( min_size.width(), w );
01049     h = QMAX( min_size.height(), h );
01050 
01051     int w1 = w;
01052     int h1 = h;
01053     int width_inc = xSizeHint.width_inc;
01054     int height_inc = xSizeHint.height_inc;
01055     int basew_inc = xSizeHint.min_width; // see getWmNormalHints()
01056     int baseh_inc = xSizeHint.min_height;
01057     w = int(( w - basew_inc ) / width_inc ) * width_inc + basew_inc;
01058     h = int(( h - baseh_inc ) / height_inc ) * height_inc + baseh_inc;
01059 // code for aspect ratios based on code from FVWM
01060     /*
01061      * The math looks like this:
01062      *
01063      * minAspectX    dwidth     maxAspectX
01064      * ---------- <= ------- <= ----------
01065      * minAspectY    dheight    maxAspectY
01066      *
01067      * If that is multiplied out, then the width and height are
01068      * invalid in the following situations:
01069      *
01070      * minAspectX * dheight > minAspectY * dwidth
01071      * maxAspectX * dheight < maxAspectY * dwidth
01072      *
01073      */
01074     if( xSizeHint.flags & PAspect )
01075         {
01076         double min_aspect_w = xSizeHint.min_aspect.x; // use doubles, because the values can be MAX_INT
01077         double min_aspect_h = xSizeHint.min_aspect.y; // and multiplying would go wrong otherwise
01078         double max_aspect_w = xSizeHint.max_aspect.x;
01079         double max_aspect_h = xSizeHint.max_aspect.y;
01080         // According to ICCCM 4.1.2.3 PMinSize should be a fallback for PBaseSize for size increments,
01081         // but not for aspect ratio. Since this code comes from FVWM, handles both at the same time,
01082         // and I have no idea how it works, let's hope nobody relies on that.
01083         w -= xSizeHint.base_width;
01084         h -= xSizeHint.base_height;
01085         int max_width = max_size.width() - xSizeHint.base_width;
01086         int min_width = min_size.width() - xSizeHint.base_width;
01087         int max_height = max_size.height() - xSizeHint.base_height;
01088         int min_height = min_size.height() - xSizeHint.base_height;
01089 #define ASPECT_CHECK_GROW_W \
01090         if( min_aspect_w * h > min_aspect_h * w ) \
01091             { \
01092             int delta = int( min_aspect_w * h / min_aspect_h - w ) / width_inc * width_inc; \
01093             if( w + delta <= max_width ) \
01094                 w += delta; \
01095             }
01096 #define ASPECT_CHECK_SHRINK_H_GROW_W \
01097         if( min_aspect_w * h > min_aspect_h * w ) \
01098             { \
01099             int delta = int( h - w * min_aspect_h / min_aspect_w ) / height_inc * height_inc; \
01100             if( h - delta >= min_height ) \
01101                 h -= delta; \
01102             else \
01103                 { \
01104                 int delta = int( min_aspect_w * h / min_aspect_h - w ) / width_inc * width_inc; \
01105                 if( w + delta <= max_width ) \
01106                     w += delta; \
01107                 } \
01108             }
01109 #define ASPECT_CHECK_GROW_H \
01110         if( max_aspect_w * h < max_aspect_h * w ) \
01111             { \
01112             int delta = int( w * max_aspect_h / max_aspect_w - h ) / height_inc * height_inc; \
01113             if( h + delta <= max_height ) \
01114                 h += delta; \
01115             }
01116 #define ASPECT_CHECK_SHRINK_W_GROW_H \
01117         if( max_aspect_w * h < max_aspect_h * w ) \
01118             { \
01119             int delta = int( w - max_aspect_w * h / max_aspect_h ) / width_inc * width_inc; \
01120             if( w - delta >= min_width ) \
01121                 w -= delta; \
01122             else \
01123                 { \
01124                 int delta = int( w * max_aspect_h / max_aspect_w - h ) / height_inc * height_inc; \
01125                 if( h + delta <= max_height ) \
01126                     h += delta; \
01127                 } \
01128             }
01129         switch( mode )
01130             {
01131             case SizemodeAny:
01132 #if 0 // make SizemodeAny equal to SizemodeFixedW - prefer keeping fixed width,
01133       // so that changing aspect ratio to a different value and back keeps the same size (#87298)
01134                 {
01135                 ASPECT_CHECK_SHRINK_H_GROW_W
01136                 ASPECT_CHECK_SHRINK_W_GROW_H
01137                 ASPECT_CHECK_GROW_H
01138                 ASPECT_CHECK_GROW_W
01139                 break;
01140                 }
01141 #endif
01142             case SizemodeFixedW:
01143                 {
01144                 // the checks are order so that attempts to modify height are first
01145                 ASPECT_CHECK_GROW_H
01146                 ASPECT_CHECK_SHRINK_H_GROW_W
01147                 ASPECT_CHECK_SHRINK_W_GROW_H
01148                 ASPECT_CHECK_GROW_W
01149                 break;
01150                 }
01151             case SizemodeFixedH:
01152                 {
01153                 ASPECT_CHECK_GROW_W
01154                 ASPECT_CHECK_SHRINK_W_GROW_H
01155                 ASPECT_CHECK_SHRINK_H_GROW_W
01156                 ASPECT_CHECK_GROW_H
01157                 break;
01158                 }
01159             case SizemodeMax:
01160                 {
01161                 // first checks that try to shrink
01162                 ASPECT_CHECK_SHRINK_H_GROW_W
01163                 ASPECT_CHECK_SHRINK_W_GROW_H
01164                 ASPECT_CHECK_GROW_W
01165                 ASPECT_CHECK_GROW_H
01166                 break;
01167                 }
01168             case SizemodeShaded:
01169                 break;
01170             }
01171 #undef ASPECT_CHECK_SHRINK_H_GROW_W
01172 #undef ASPECT_CHECK_SHRINK_W_GROW_H
01173 #undef ASPECT_CHECK_GROW_W
01174 #undef ASPECT_CHECK_GROW_H
01175         w += xSizeHint.base_width;
01176         h += xSizeHint.base_height;
01177         }
01178     if( !rules()->checkStrictGeometry( false ))
01179         {
01180         // disobey increments and aspect when maximized
01181         if( maximizeMode() & MaximizeHorizontal )
01182             w = w1;
01183         if( maximizeMode() & MaximizeVertical )
01184             h = h1;
01185         }
01186 
01187     if( !noframe )
01188         {
01189         w += border_left + border_right;
01190         h += border_top + border_bottom;
01191         }
01192     QSize ret = rules()->checkSize( QSize( w, h ));
01193     if ( mode == SizemodeShaded && wsize.height() == 0 )
01194         ret.setHeight( noframe ? 0 : border_top + border_bottom );
01195     return ret;
01196     }
01197 
01201 void Client::getWmNormalHints()
01202     {
01203     long msize;
01204     if (XGetWMNormalHints(qt_xdisplay(), window(), &xSizeHint, &msize) == 0 )
01205         xSizeHint.flags = 0;
01206     // set defined values for the fields, even if they're not in flags
01207 
01208     if( xSizeHint.flags & PBaseSize )
01209         {
01210         // PBaseSize is a fallback for PMinSize according to ICCCM 4.1.2.3
01211         // The other way around PMinSize is not a complete fallback for PBaseSize,
01212         // so that's not handled here.
01213         if( ! ( xSizeHint.flags & PMinSize ))
01214             {
01215             xSizeHint.min_width = xSizeHint.base_width;
01216             xSizeHint.min_height = xSizeHint.base_height;
01217             }
01218         }
01219     else
01220         xSizeHint.base_width = xSizeHint.base_height = 0;
01221     if( ! ( xSizeHint.flags & PMinSize ))
01222         xSizeHint.min_width = xSizeHint.min_height = 0;
01223     if( ! ( xSizeHint.flags & PMaxSize ))
01224         xSizeHint.max_width = xSizeHint.max_height = INT_MAX;
01225     else
01226         {
01227         xSizeHint.max_width = QMAX( xSizeHint.max_width, 1 );
01228         xSizeHint.max_height = QMAX( xSizeHint.max_height, 1 );
01229         }
01230     if( xSizeHint.flags & PResizeInc )
01231         {
01232         xSizeHint.width_inc = kMax( xSizeHint.width_inc, 1 );
01233         xSizeHint.height_inc = kMax( xSizeHint.height_inc, 1 );
01234         }
01235     else
01236         {
01237         xSizeHint.width_inc = 1;
01238         xSizeHint.height_inc = 1;
01239         }
01240     if( xSizeHint.flags & PAspect )
01241         { // no dividing by zero
01242         xSizeHint.min_aspect.y = kMax( xSizeHint.min_aspect.y, 1 );
01243         xSizeHint.max_aspect.y = kMax( xSizeHint.max_aspect.y, 1 );
01244         }
01245     else
01246         {
01247         xSizeHint.min_aspect.x = 1;
01248         xSizeHint.min_aspect.y = INT_MAX;
01249         xSizeHint.max_aspect.x = INT_MAX;
01250         xSizeHint.max_aspect.y = 1;
01251         }
01252     if( ! ( xSizeHint.flags & PWinGravity ))
01253         xSizeHint.win_gravity = NorthWestGravity;
01254     if( isManaged())
01255         { // update to match restrictions
01256         QSize new_size = adjustedSize( size());
01257         if( new_size != size() && !isFullScreen())
01258             resizeWithChecks( new_size );
01259         }
01260     updateAllowedActions(); // affects isResizeable()
01261     }
01262 
01263 QSize Client::minSize() const
01264     {
01265     return rules()->checkMinSize( QSize( xSizeHint.min_width, xSizeHint.min_height ));
01266     }
01267 
01268 QSize Client::maxSize() const
01269     {
01270     return rules()->checkMaxSize( QSize( xSizeHint.max_width, xSizeHint.max_height ));
01271     }
01272 
01278 void Client::sendSyntheticConfigureNotify()
01279     {
01280     XConfigureEvent c;
01281     c.type = ConfigureNotify;
01282     c.send_event = True;
01283     c.event = window();
01284     c.window = window();
01285     c.x = x() + clientPos().x();
01286     c.y = y() + clientPos().y();
01287     c.width = clientSize().width();
01288     c.height = clientSize().height();
01289     c.border_width = 0;
01290     c.above = None;
01291     c.override_redirect = 0;
01292     XSendEvent( qt_xdisplay(), c.event, TRUE, StructureNotifyMask, (XEvent*)&c );
01293     }
01294 
01295 const QPoint Client::calculateGravitation( bool invert, int gravity ) const
01296     {
01297     int dx, dy;
01298     dx = dy = 0;
01299 
01300     if( gravity == 0 ) // default (nonsense) value for the argument
01301         gravity = xSizeHint.win_gravity;
01302 
01303 // dx, dy specify how the client window moves to make space for the frame
01304     switch (gravity)
01305         {
01306         case NorthWestGravity: // move down right
01307         default:
01308             dx = border_left;
01309             dy = border_top;
01310             break;
01311         case NorthGravity: // move right
01312             dx = 0;
01313             dy = border_top;
01314             break;
01315         case NorthEastGravity: // move down left
01316             dx = -border_right;
01317             dy = border_top;
01318             break;
01319         case WestGravity: // move right
01320             dx = border_left;
01321             dy = 0;
01322             break;
01323         case CenterGravity:
01324             break; // will be handled specially
01325         case StaticGravity: // don't move
01326             dx = 0;
01327             dy = 0;
01328             break;
01329         case EastGravity: // move left
01330             dx = -border_right;
01331             dy = 0;
01332             break;
01333         case SouthWestGravity: // move up right
01334             dx = border_left ;
01335             dy = -border_bottom;
01336             break;
01337         case SouthGravity: // move up
01338             dx = 0;
01339             dy = -border_bottom;
01340             break;
01341         case SouthEastGravity: // move up left
01342             dx = -border_right;
01343             dy = -border_bottom;
01344             break;
01345         }
01346     if( gravity != CenterGravity )
01347         { // translate from client movement to frame movement
01348         dx -= border_left;
01349         dy -= border_top;
01350         }
01351     else
01352         { // center of the frame will be at the same position client center without frame would be
01353         dx = - ( border_left + border_right ) / 2;
01354         dy = - ( border_top + border_bottom ) / 2;
01355         }
01356     if( !invert )
01357         return QPoint( x() + dx, y() + dy );
01358     else
01359         return QPoint( x() - dx, y() - dy );
01360     }
01361 
01362 void Client::configureRequest( int value_mask, int rx, int ry, int rw, int rh, int gravity, bool from_tool )
01363     {
01364     if( gravity == 0 ) // default (nonsense) value for the argument
01365         gravity = xSizeHint.win_gravity;
01366     if( value_mask & ( CWX | CWY ))
01367         {
01368         QPoint new_pos = calculateGravitation( true, gravity ); // undo gravitation
01369         if ( value_mask & CWX )
01370             new_pos.setX( rx );
01371         if ( value_mask & CWY )
01372             new_pos.setY( ry );
01373 
01374         // clever(?) workaround for applications like xv that want to set
01375         // the location to the current location but miscalculate the
01376         // frame size due to kwin being a double-reparenting window
01377         // manager
01378         if ( new_pos.x() == x() + clientPos().x() &&
01379              new_pos.y() == y() + clientPos().y() && gravity == NorthWestGravity )
01380             {
01381             new_pos.setX( x());
01382             new_pos.setY( y());
01383             }
01384 
01385         int nw = clientSize().width();
01386         int nh = clientSize().height();
01387         if ( value_mask & CWWidth )
01388             nw = rw;
01389         if ( value_mask & CWHeight )
01390             nh = rh;
01391         QSize ns = sizeForClientSize( QSize( nw, nh ) );
01392 
01393         // TODO what to do with maximized windows?
01394         if ( maximizeMode() != MaximizeFull
01395             || ns != size())
01396             {
01397             QRect orig_geometry = geometry();
01398             ++block_geometry;
01399             move( new_pos );
01400             plainResize( ns );
01401             setGeometry( QRect( calculateGravitation( false, gravity ), size()));
01402             updateFullScreenHack( QRect( new_pos, QSize( nw, nh )));
01403             QRect area = workspace()->clientArea( WorkArea, this );
01404             if( !from_tool && ( !isSpecialWindow() || isToolbar()) && !isFullScreen()
01405                 && area.contains( orig_geometry ))
01406                 keepInArea( area );
01407             --block_geometry;
01408             setGeometry( geometry(), ForceGeometrySet );
01409 
01410             // this is part of the kicker-xinerama-hack... it should be
01411             // safe to remove when kicker gets proper ExtendedStrut support;
01412             // see Workspace::updateClientArea() and
01413             // Client::adjustedClientArea()
01414             if (hasStrut ())
01415                 workspace() -> updateClientArea ();
01416             }
01417         }
01418 
01419     if ( value_mask & (CWWidth | CWHeight )
01420         && ! ( value_mask & ( CWX | CWY )) )  // pure resize
01421         {
01422         int nw = clientSize().width();
01423         int nh = clientSize().height();
01424         if ( value_mask & CWWidth )
01425             nw = rw;
01426         if ( value_mask & CWHeight )
01427             nh = rh;
01428         QSize ns = sizeForClientSize( QSize( nw, nh ) );
01429 
01430         if( ns != size())  // don't restore if some app sets its own size again
01431             {
01432             QRect orig_geometry = geometry();
01433             ++block_geometry;
01434             int save_gravity = xSizeHint.win_gravity;
01435             xSizeHint.win_gravity = gravity;
01436             resizeWithChecks( ns );
01437             xSizeHint.win_gravity = save_gravity;
01438             updateFullScreenHack( QRect( calculateGravitation( true, xSizeHint.win_gravity ), QSize( nw, nh )));
01439             QRect area = workspace()->clientArea( WorkArea, this );
01440             if( !from_tool && ( !isSpecialWindow() || isToolbar()) && !isFullScreen()
01441                 && area.contains( orig_geometry ))
01442                 keepInArea( area );
01443             --block_geometry;
01444             setGeometry( geometry(), ForceGeometrySet );
01445             }
01446         }
01447     // No need to send synthetic configure notify event here, either it's sent together
01448     // with geometry change, or there's no need to send it.
01449     // Handling of the real ConfigureRequest event forces sending it, as there it's necessary.
01450     }
01451 
01452 void Client::resizeWithChecks( int w, int h, ForceGeometry_t force )
01453     {
01454     int newx = x();
01455     int newy = y();
01456     QRect area = workspace()->clientArea( WorkArea, this );
01457     // don't allow growing larger than workarea
01458     if( w > area.width())
01459         w = area.width();
01460     if( h > area.height())
01461         h = area.height();
01462     QSize tmp = adjustedSize( QSize( w, h )); // checks size constraints, including min/max size
01463     w = tmp.width();
01464     h = tmp.height();
01465     switch( xSizeHint.win_gravity )
01466         {
01467         case NorthWestGravity: // top left corner doesn't move
01468         default:
01469             break;
01470         case NorthGravity: // middle of top border doesn't move
01471             newx = ( newx + width() / 2 ) - ( w / 2 );
01472             break;
01473         case NorthEastGravity: // top right corner doesn't move
01474             newx = newx + width() - w;
01475             break;
01476         case WestGravity: // middle of left border doesn't move
01477             newy = ( newy + height() / 2 ) - ( h / 2 );
01478             break;
01479         case CenterGravity: // middle point doesn't move
01480             newx = ( newx + width() / 2 ) - ( w / 2 );
01481             newy = ( newy + height() / 2 ) - ( h / 2 );
01482             break;
01483         case StaticGravity: // top left corner of _client_ window doesn't move
01484             // since decoration doesn't change, equal to NorthWestGravity
01485             break;
01486         case EastGravity: // // middle of right border doesn't move
01487             newx = newx + width() - w;
01488             newy = ( newy + height() / 2 ) - ( h / 2 );
01489             break;
01490         case SouthWestGravity: // bottom left corner doesn't move
01491             newy = newy + height() - h;
01492             break;
01493         case SouthGravity: // middle of bottom border doesn't move
01494             newx = ( newx + width() / 2 ) - ( w / 2 );
01495             newy = newy + height() - h;
01496             break;
01497         case SouthEastGravity: // bottom right corner doesn't move
01498             newx = newx + width() - w;
01499             newy = newy + height() - h;
01500             break;
01501         }
01502     // if it would be moved outside of workarea, keep it inside,
01503     // see also Client::computeWorkareaDiff()
01504     if( workarea_diff_x != INT_MIN && w <= area.width()) // was inside and can still fit
01505         {
01506         if( newx < area.left())
01507             newx = area.left();
01508         if( newx + w > area.right() + 1 )
01509             newx = area.right() + 1 - w;
01510         assert( newx >= area.left() && newx + w <= area.right() + 1 ); // width was checked above
01511         }
01512     if( workarea_diff_y != INT_MIN && h <= area.height()) // was inside and can still fit
01513         {
01514         if( newy < area.top())
01515             newy = area.top();
01516         if( newy + h > area.bottom() + 1 )
01517             newy = area.bottom() + 1 - h;
01518         assert( newy >= area.top() && newy + h <= area.bottom() + 1 ); // height was checked above
01519         }
01520     setGeometry( newx, newy, w, h, force );
01521     }
01522 
01523 // _NET_MOVERESIZE_WINDOW
01524 void Client::NETMoveResizeWindow( int flags, int x, int y, int width, int height )
01525     {
01526     int gravity = flags & 0xff;
01527     int value_mask = 0;
01528     if( flags & ( 1 << 8 ))
01529         value_mask |= CWX;
01530     if( flags & ( 1 << 9 ))
01531         value_mask |= CWY;
01532     if( flags & ( 1 << 10 ))
01533         value_mask |= CWWidth;
01534     if( flags & ( 1 << 11 ))
01535         value_mask |= CWHeight;
01536     configureRequest( value_mask, x, y, width, height, gravity, true );
01537     }
01538 
01543 bool Client::isMovable() const
01544     {
01545     if( !motif_may_move || isFullScreen())
01546         return false;
01547     if( isSpecialWindow() && !isOverride() && !isSplash() && !isToolbar()) // allow moving of splashscreens :)
01548         return false;
01549     if( maximizeMode() == MaximizeFull && !options->moveResizeMaximizedWindows() )
01550         return false;
01551     if( rules()->checkPosition( invalidPoint ) != invalidPoint ) // forced position
01552         return false;
01553     return true;
01554     }
01555 
01559 bool Client::isResizable() const
01560     {
01561     if( !motif_may_resize || isFullScreen())
01562         return false;
01563     if(( isSpecialWindow() || isSplash() || isToolbar()) && !isOverride())
01564         return false;
01565     if( maximizeMode() == MaximizeFull && !options->moveResizeMaximizedWindows() )
01566         return false;
01567     if( rules()->checkSize( QSize()).isValid()) // forced size
01568         return false;
01569 
01570     QSize min = minSize();
01571     QSize max = maxSize();
01572     return min.width() < max.width() || min.height() < max.height();
01573     }
01574 
01575 /*
01576   Returns whether the window is maximizable or not
01577  */
01578 bool Client::isMaximizable() const
01579     {
01580         { // isMovable() and isResizable() may be false for maximized windows
01581           // with moving/resizing maximized windows disabled
01582         TemporaryAssign< MaximizeMode > tmp( max_mode, MaximizeRestore );
01583         if( !isMovable() || !isResizable() || isToolbar()) // SELI isToolbar() ?
01584             return false;
01585         }
01586     if ( maximizeMode() != MaximizeRestore )
01587         return TRUE;
01588     QSize max = maxSize();
01589 #if 0
01590     if( max.width() < 32767 || max.height() < 32767 ) // sizes are 16bit with X
01591         return false;
01592 #else
01593     // apparently there are enough apps which specify some arbitrary value
01594     // for their maximum size just for the fun of it
01595     QSize areasize = workspace()->clientArea( MaximizeArea, this ).size();
01596     if( max.width() < areasize.width() || max.height() < areasize.height())
01597         return false;
01598 #endif
01599     return true;
01600     }
01601 
01602 
01606 void Client::setGeometry( int x, int y, int w, int h, ForceGeometry_t force )
01607     {
01608     if( force == NormalGeometrySet && frame_geometry == QRect( x, y, w, h ))
01609         return;
01610     h = checkShadeGeometry( w, h );
01611     frame_geometry = QRect( x, y, w, h );
01612     if( !isShade())
01613         client_size = QSize( w - border_left - border_right, h - border_top - border_bottom );
01614     else
01615         client_size = QSize( w - border_left - border_right, client_size.height());
01616     updateWorkareaDiffs();
01617     if( block_geometry == 0 )
01618         {
01619         XMoveResizeWindow( qt_xdisplay(), frameId(), x, y, w, h );
01620         resizeDecoration( QSize( w, h ));
01621         if( !isShade())
01622             {
01623             QSize cs = clientSize();
01624             XMoveResizeWindow( qt_xdisplay(), wrapperId(), clientPos().x(), clientPos().y(),
01625                 cs.width(), cs.height());
01626             // FRAME tady poradi tak, at neni flicker
01627             XMoveResizeWindow( qt_xdisplay(), window(), 0, 0, cs.width(), cs.height());
01628             }
01629         if( shape())
01630             updateShape();
01631         // SELI TODO won't this be too expensive?
01632         updateWorkareaDiffs();
01633         sendSyntheticConfigureNotify();
01634         updateWindowRules();
01635         checkMaximizeGeometry();
01636         }
01637     }
01638 
01639 void Client::plainResize( int w, int h, ForceGeometry_t force )
01640     {
01641     if( QSize( w, h ) != rules()->checkSize( QSize( w, h )))
01642         {
01643         kdDebug() << "forced size fail:" << QSize( w,h ) << ":" << rules()->checkSize( QSize( w, h )) << endl;
01644         kdDebug() << kdBacktrace() << endl;
01645         }
01646     if( force == NormalGeometrySet && frame_geometry.size() == QSize( w, h ))
01647         return;
01648     h = checkShadeGeometry( w, h );
01649     frame_geometry.setSize( QSize( w, h ));
01650     if( !isShade())
01651         client_size = QSize( w - border_left - border_right, h - border_top - border_bottom );
01652     else
01653         client_size = QSize( w - border_left - border_right, client_size.height());
01654     updateWorkareaDiffs();
01655     if( block_geometry == 0 )
01656         {
01657         XResizeWindow( qt_xdisplay(), frameId(), w, h );
01658         resizeDecoration( QSize( w, h ));
01659         if( !isShade())
01660             {
01661             QSize cs = clientSize();
01662             XMoveResizeWindow( qt_xdisplay(), wrapperId(), clientPos().x(), clientPos().y(),
01663                 cs.width(), cs.height());
01664             XMoveResizeWindow( qt_xdisplay(), window(), 0, 0, cs.width(), cs.height());
01665             }
01666         if( shape())
01667             updateShape();
01668         updateWorkareaDiffs();
01669         sendSyntheticConfigureNotify();
01670         updateWindowRules();
01671         checkMaximizeGeometry();
01672         }
01673     }
01674 
01675 // There may be cases when an application requests resizing while shaded,
01676 // and even KWin itself may do so somewhere (too many places to check :-/ ).
01677 // If the requested geometry doesn't fit shaded geometry, adjust the height
01678 // of the requested geometry and return it.
01679 int Client::checkShadeGeometry( int w, int h )
01680     {
01681     // check that the frame is not resized to full size when it should be shaded
01682     if( isShade() && !shade_geometry_change && h != border_top + border_bottom )
01683         {
01684         kdDebug() << "Fixing shaded geometry:" << this << endl;
01685         // adjust the client size to match the newly requested geometry
01686         client_size = adjustedSize( QSize( w, h ));
01687 //        checkMaximizeGeometry(); // doesn't work, actual setting of geometry changes this again
01688         h = border_top + border_bottom;
01689         }
01690     return h;
01691     }
01692 
01696 void Client::move( int x, int y, ForceGeometry_t force )
01697     {
01698     if( force == NormalGeometrySet && frame_geometry.topLeft() == QPoint( x, y ))
01699         return;
01700     frame_geometry.moveTopLeft( QPoint( x, y ));
01701     updateWorkareaDiffs();
01702     if( block_geometry == 0 )
01703         {
01704         XMoveWindow( qt_xdisplay(), frameId(), x, y );
01705         sendSyntheticConfigureNotify();
01706         updateWindowRules();
01707         checkMaximizeGeometry();
01708         }
01709     }
01710 
01711 
01712 void Client::maximize( MaximizeMode m )
01713     {
01714     setMaximize( m & MaximizeVertical, m & MaximizeHorizontal );
01715     }
01716 
01720 void Client::setMaximize( bool vertically, bool horizontally )
01721     {   // changeMaximize() flips the state, so change from set->flip
01722     changeMaximize(
01723         max_mode & MaximizeVertical ? !vertically : vertically,
01724         max_mode & MaximizeHorizontal ? !horizontally : horizontally,
01725         false );
01726     }
01727 
01728 void Client::changeMaximize( bool vertical, bool horizontal, bool adjust )
01729     {
01730     if( !isMaximizable())
01731         return;
01732 
01733     MaximizeMode old_mode = max_mode;
01734     // 'adjust == true' means to update the size only, e.g. after changing workspace size
01735     if( !adjust )
01736         {
01737         if( vertical )
01738             max_mode = MaximizeMode( max_mode ^ MaximizeVertical );
01739         if( horizontal )
01740             max_mode = MaximizeMode( max_mode ^ MaximizeHorizontal );
01741         }
01742         
01743     max_mode = rules()->checkMaximize( max_mode );
01744     if( !adjust && max_mode == old_mode )
01745         return;
01746 
01747     ++block_geometry; // TODO GeometryBlocker class?
01748 
01749     // maximing one way and unmaximizing the other way shouldn't happen
01750     Q_ASSERT( !( vertical && horizontal )
01751         || (( max_mode & MaximizeVertical != 0 ) == ( max_mode & MaximizeHorizontal != 0 )));
01752 
01753     QRect clientArea = workspace()->clientArea( MaximizeArea, this );
01754 
01755     // save sizes for restoring, if maximalizing
01756     if( !( y() == clientArea.top() && height() == clientArea.height()))
01757         {
01758         geom_restore.setTop( y());
01759         geom_restore.setHeight( height());
01760         }
01761     if( !( x() == clientArea.left() && width() == clientArea.width()))
01762         {
01763         geom_restore.setLeft( x());
01764         geom_restore.setWidth( width());
01765         }
01766 
01767     if( !adjust )
01768         {
01769         if(( vertical && !(old_mode & MaximizeVertical ))
01770             || ( horizontal && !( old_mode & MaximizeHorizontal )))
01771             Notify::raise( Notify::Maximize );
01772         else
01773             Notify::raise( Notify::UnMaximize );
01774         }
01775 
01776     if( decoration != NULL ) // decorations may turn off some borders when maximized
01777         decoration->borders( border_left, border_right, border_top, border_bottom );
01778 
01779     switch (max_mode)
01780         {
01781 
01782         case MaximizeVertical:
01783             {
01784             if( old_mode & MaximizeHorizontal ) // actually restoring from MaximizeFull
01785                 {
01786                 if( geom_restore.width() == 0 )
01787                     { // needs placement
01788                     plainResize( adjustedSize(QSize(width(), clientArea.height()), SizemodeFixedH ));
01789                     workspace()->placeSmart( this, clientArea );
01790                     }
01791                 else
01792                     setGeometry( QRect(QPoint( geom_restore.x(), clientArea.top()),
01793                               adjustedSize(QSize( geom_restore.width(), clientArea.height()), SizemodeFixedH )));
01794                 }
01795             else
01796                 setGeometry( QRect(QPoint(x(), clientArea.top()),
01797                               adjustedSize(QSize(width(), clientArea.height()), SizemodeFixedH )));
01798             info->setState( NET::MaxVert, NET::Max );
01799             break;
01800             }
01801 
01802         case MaximizeHorizontal:
01803             {
01804             if( old_mode & MaximizeVertical ) // actually restoring from MaximizeFull
01805                 {
01806                 if( geom_restore.height() == 0 )
01807                     { // needs placement
01808                     plainResize( adjustedSize(QSize(clientArea.width(), height()), SizemodeFixedW ));
01809                     workspace()->placeSmart( this, clientArea );
01810                     }
01811                 else
01812                     setGeometry( QRect( QPoint(clientArea.left(), geom_restore.y()),
01813                               adjustedSize(QSize(clientArea.width(), geom_restore.height()), SizemodeFixedW )));
01814                 }
01815             else
01816                 setGeometry( QRect( QPoint(clientArea.left(), y()),
01817                               adjustedSize(QSize(clientArea.width(), height()), SizemodeFixedW )));
01818             info->setState( NET::MaxHoriz, NET::Max );
01819             break;
01820             }
01821 
01822         case MaximizeRestore:
01823             {
01824             QRect restore = geometry();
01825     // when only partially maximized, geom_restore may not have the other dimension remembered
01826             if( old_mode & MaximizeVertical )
01827                 {
01828                 restore.setTop( geom_restore.top());
01829                 restore.setBottom( geom_restore.bottom());
01830                 }
01831             if( old_mode & MaximizeHorizontal )
01832                 {
01833                 restore.setLeft( geom_restore.left());
01834                 restore.setRight( geom_restore.right());
01835                 }
01836             if( !restore.isValid())
01837                 {
01838                 QSize s = QSize( clientArea.width()*2/3, clientArea.height()*2/3 );
01839                 if( geom_restore.width() > 0 )
01840                     s.setWidth( geom_restore.width());
01841                 if( geom_restore.height() > 0 )
01842                     s.setHeight( geom_restore.height());
01843                 plainResize( adjustedSize( s ));
01844                 workspace()->placeSmart( this, clientArea );
01845                 restore = geometry();
01846                 if( geom_restore.width() > 0 )
01847                     restore.moveLeft( geom_restore.x());
01848                 if( geom_restore.height() > 0 )
01849                     restore.moveTop( geom_restore.y());
01850                 }
01851             setGeometry( restore );
01852             info->setState( 0, NET::Max );
01853             break;
01854             }
01855 
01856         case MaximizeFull:
01857             {
01858             QSize adjSize = adjustedSize(clientArea.size(), SizemodeMax );
01859             QRect r = QRect(clientArea.topLeft(), adjSize);
01860             setGeometry( r );
01861             info->setState( NET::Max, NET::Max );
01862             break;
01863             }
01864         default:
01865             break;
01866         }
01867 
01868     --block_geometry;
01869     setGeometry( geometry(), ForceGeometrySet );
01870 
01871     updateAllowedActions();
01872     if( decoration != NULL )
01873         decoration->maximizeChange();
01874     updateWindowRules();
01875     }
01876 
01877 void Client::resetMaximize()
01878     {
01879     if( max_mode == MaximizeRestore )
01880         return;
01881     max_mode = MaximizeRestore;
01882     Notify::raise( Notify::UnMaximize );
01883     info->setState( 0, NET::Max );
01884     updateAllowedActions();
01885     if( decoration != NULL )
01886         decoration->borders( border_left, border_right, border_top, border_bottom );
01887     setGeometry( geometry(), ForceGeometrySet );
01888     if( decoration != NULL )
01889         decoration->maximizeChange();
01890     }
01891 
01892 void Client::checkMaximizeGeometry()
01893     {
01894     // when adding new bail-out conditions here, checkMaximizeGeometry() needs to be called
01895     // when after the condition is no longer true
01896     if( isShade())
01897         return;
01898     if( isMove() || isResize()) // this is because of the option to disallow moving/resizing of max-ed windows
01899         return;
01900     // Just in case.
01901     static int recursion_protection = 0;
01902     if( recursion_protection > 3 )
01903         {
01904         kdWarning( 1212 ) << "Check maximize overflow - you loose!" << endl;
01905         kdWarning( 1212 ) << kdBacktrace() << endl;
01906         return;
01907         }
01908     ++recursion_protection;
01909     QRect max_area = workspace()->clientArea( MaximizeArea, this );
01910     if( geometry() == max_area )
01911         {
01912         if( max_mode != MaximizeFull )
01913             maximize( MaximizeFull );
01914         }
01915     else if( x() == max_area.left() && width() == max_area.width())
01916         {
01917         if( max_mode != MaximizeHorizontal )
01918             maximize( MaximizeHorizontal );
01919         }
01920     else if( y() == max_area.top() && height() == max_area.height())
01921         {
01922         if( max_mode != MaximizeVertical )
01923             maximize( MaximizeVertical );
01924         }
01925     else if( max_mode != MaximizeRestore )
01926         {
01927         resetMaximize(); // not maximize( MaximizeRestore ), that'd change geometry - this is called from setGeometry()
01928         }
01929     --recursion_protection;
01930     }
01931 
01932 bool Client::isFullScreenable( bool fullscreen_hack ) const
01933     {
01934     if( !rules()->checkFullScreen( true ))
01935         return false;
01936     if( fullscreen_hack )
01937         return isNormalWindow() || isOverride();
01938     if( rules()->checkStrictGeometry( false ))
01939         {
01940         // the app wouldn't fit exactly fullscreen geometry due its strict geometry requirements
01941         QRect fsarea = workspace()->clientArea( FullScreenArea, this );
01942         if( sizeForClientSize( fsarea.size(), SizemodeAny, true ) != fsarea.size())
01943             return false;
01944         }
01945      // don't check size constrains - some apps request fullscreen despite requesting fixed size
01946     return !isSpecialWindow(); // also better disallow only weird types to go fullscreen
01947     }
01948 
01949 bool Client::userCanSetFullScreen() const
01950     {
01951     if( fullscreen_mode == FullScreenHack )
01952         return false;
01953     if( !isFullScreenable( false ))
01954         return false;
01955     // isMaximizable() returns false if fullscreen
01956     TemporaryAssign< FullScreenMode > tmp( fullscreen_mode, FullScreenNone );
01957     return isNormalWindow() && isMaximizable();
01958     }
01959 
01960 void Client::setFullScreen( bool set, bool user )
01961     {
01962     if( !isFullScreen() && !set )
01963         return;
01964     if( fullscreen_mode == FullScreenHack )
01965         return;
01966     if( user && !userCanSetFullScreen())
01967         return;
01968     set = rules()->checkFullScreen( set );
01969     setShade( ShadeNone );
01970     bool was_fs = isFullScreen();
01971     if( !was_fs )
01972         geom_fs_restore = geometry();
01973     fullscreen_mode = set ? FullScreenNormal : FullScreenNone;
01974     if( was_fs == isFullScreen())
01975         return;
01976     StackingUpdatesBlocker blocker( workspace());
01977     workspace()->updateClientLayer( this ); // active fullscreens get different layer
01978     info->setState( isFullScreen() ? NET::FullScreen : 0, NET::FullScreen );
01979     updateDecoration( false, false );
01980     if( isFullScreen())
01981         setGeometry( workspace()->clientArea( FullScreenArea, this ));
01982     else
01983         {
01984         if( maximizeMode() != MaximizeRestore )
01985             changeMaximize( false, false, true ); // adjust size
01986         else if( !geom_fs_restore.isNull())
01987             setGeometry( QRect( geom_fs_restore.topLeft(), adjustedSize( geom_fs_restore.size())));
01988         // TODO isShaded() ?
01989         else
01990             { // does this ever happen?
01991             setGeometry( workspace()->clientArea( MaximizeArea, this ));
01992             }
01993         }
01994     updateWindowRules();
01995     }
01996 
01997 bool Client::checkFullScreenHack( const QRect& geom ) const
01998     {
01999     // if it's noborder window, and has size of one screen or the whole desktop geometry, it's fullscreen hack
02000     return (( geom.size() == workspace()->clientArea( FullArea, geom.center(), desktop()).size()
02001             || geom.size() == workspace()->clientArea( ScreenArea, geom.center(), desktop()).size())
02002         && noBorder() && !isUserNoBorder() && isFullScreenable( true ));
02003     }
02004 
02005 void Client::updateFullScreenHack( const QRect& geom )
02006     {
02007     bool is_hack = checkFullScreenHack( geom );
02008     if( fullscreen_mode == FullScreenNone && is_hack )
02009         {
02010         fullscreen_mode = FullScreenHack;
02011         updateDecoration( false, false );
02012         setGeometry( workspace()->clientArea( FullScreenArea, this ));
02013         }
02014     else if( fullscreen_mode == FullScreenHack && !is_hack )
02015         {
02016         fullscreen_mode = FullScreenNone;
02017         updateDecoration( false, false );
02018         // whoever called this must setup correct geometry
02019         }
02020     StackingUpdatesBlocker blocker( workspace());
02021     workspace()->updateClientLayer( this ); // active fullscreens get different layer
02022     }
02023 
02024 static QRect*       visible_bound  = 0;
02025 static GeometryTip* geometryTip    = 0;
02026 
02027 void Client::drawbound( const QRect& geom )
02028     {
02029     assert( visible_bound == NULL );
02030     visible_bound = new QRect( geom );
02031     doDrawbound( *visible_bound, false );
02032     }
02033 
02034 void Client::clearbound()
02035     {
02036     if( visible_bound == NULL )
02037         return;
02038     doDrawbound( *visible_bound, true );
02039     delete visible_bound;
02040     visible_bound = 0;
02041     }
02042 
02043 void Client::doDrawbound( const QRect& geom, bool clear )
02044     {
02045     if( decoration != NULL && decoration->drawbound( geom, clear ))
02046         return; // done by decoration
02047     QPainter p ( workspace()->desktopWidget() );
02048     p.setPen( QPen( Qt::white, 5 ) );
02049     p.setRasterOp( Qt::XorROP );
02050     // the line is 5 pixel thick, so compensate for the extra two pixels
02051     // on outside (#88657)
02052     QRect g = geom;
02053     if( g.width() > 5 )
02054         {
02055         g.setLeft( g.left() + 2 );
02056         g.setRight( g.right() - 2 );
02057         }
02058     if( g.height() > 5 )
02059         {
02060         g.setTop( g.top() + 2 );
02061         g.setBottom( g.bottom() - 2 );
02062         }
02063     p.drawRect( g );
02064     }
02065 
02066 void Client::positionGeometryTip()
02067     {
02068     assert( isMove() || isResize());
02069     // Position and Size display
02070     if (options->showGeometryTip())
02071         {
02072         if( !geometryTip )
02073             { // save under is not necessary with opaque, and seem to make things slower
02074             bool save_under = ( isMove() && rules()->checkMoveResizeMode( options->moveMode ) != Options::Opaque )
02075                         || ( isResize() && rules()->checkMoveResizeMode( options->resizeMode ) != Options::Opaque );
02076             geometryTip = new GeometryTip( &xSizeHint, save_under );
02077             }
02078         QRect wgeom( moveResizeGeom ); // position of the frame, size of the window itself
02079         wgeom.setWidth( wgeom.width() - ( width() - clientSize().width()));
02080         wgeom.setHeight( wgeom.height() - ( height() - clientSize().height()));
02081         if( isShade())
02082             wgeom.setHeight( 0 );
02083         geometryTip->setGeometry( wgeom );
02084         if( !geometryTip->isVisible())
02085             {
02086             geometryTip->show();
02087             geometryTip->raise();
02088             }
02089         }
02090     }
02091 
02092 class EatAllPaintEvents
02093     : public QObject
02094     {
02095     protected:
02096         virtual bool eventFilter( QObject* o, QEvent* e )
02097             { return e->type() == QEvent::Paint && o != geometryTip; }
02098     };
02099 
02100 static EatAllPaintEvents* eater = 0;
02101 
02102 bool Client::startMoveResize()
02103     {
02104     assert( !moveResizeMode );
02105     assert( QWidget::keyboardGrabber() == NULL );
02106     assert( QWidget::mouseGrabber() == NULL );
02107     if( QApplication::activePopupWidget() != NULL )
02108         return false; // popups have grab
02109     bool has_grab = false;
02110     // This reportedly improves smoothness of the moveresize operation,
02111     // something with Enter/LeaveNotify events, looks like XFree performance problem or something *shrug*
02112     // (http://lists.kde.org/?t=107302193400001&r=1&w=2)
02113     XSetWindowAttributes attrs;
02114     QRect r = workspace()->clientArea( FullArea, this );
02115     move_resize_grab_window = XCreateWindow( qt_xdisplay(), workspace()->rootWin(), r.x(), r.y(),
02116         r.width(), r.height(), 0, CopyFromParent, InputOnly, CopyFromParent, 0, &attrs );
02117     XMapRaised( qt_xdisplay(), move_resize_grab_window );
02118     if( XGrabPointer( qt_xdisplay(), move_resize_grab_window, False,
02119         ButtonPressMask | ButtonReleaseMask | PointerMotionMask | EnterWindowMask | LeaveWindowMask,
02120         GrabModeAsync, GrabModeAsync, None, cursor.handle(), qt_x_time ) == Success )
02121         has_grab = true;
02122     if( XGrabKeyboard( qt_xdisplay(), frameId(), False, GrabModeAsync, GrabModeAsync, qt_x_time ) == Success )
02123         has_grab = true;
02124     if( !has_grab ) // at least one grab is necessary in order to be able to finish move/resize
02125         {
02126         XDestroyWindow( qt_xdisplay(), move_resize_grab_window );
02127         move_resize_grab_window = None;
02128         return false;
02129         }
02130     if ( maximizeMode() != MaximizeRestore )
02131         resetMaximize();
02132     moveResizeMode = true;
02133     workspace()->setClientIsMoving(this);
02134     initialMoveResizeGeom = moveResizeGeom = geometry();
02135     checkUnrestrictedMoveResize();
02136     // rule out non opaque windows from useless translucency settings, maybe resizes?
02137     if ((isResize() && options->removeShadowsOnResize) || (isMove() && options->removeShadowsOnMove))
02138         setShadowSize(0);
02139     if (rules()->checkMoveResizeMode( options->moveMode ) == Options::Opaque){
02140         savedOpacity_ = opacity_;
02141         setOpacity(options->translucentMovingWindows, options->movingWindowOpacity);
02142     }
02143     if ( ( isMove() && rules()->checkMoveResizeMode( options->moveMode ) != Options::Opaque )
02144       || ( isResize() && rules()->checkMoveResizeMode( options->resizeMode ) != Options::Opaque ) )
02145         {
02146         grabXServer();
02147         kapp->sendPostedEvents();
02148         // we have server grab -> nothing should cause paint events
02149         // unfortunately, that's not completely true, Qt may generate
02150         // paint events on some widgets due to FocusIn(?)
02151         // eat them, otherwise XOR painting will be broken (#58054)
02152         // paint events for the geometrytip need to be allowed, though
02153         eater = new EatAllPaintEvents;
02154 // not needed anymore?        kapp->installEventFilter( eater );
02155         }
02156     Notify::raise( isResize() ? Notify::ResizeStart : Notify::MoveStart );
02157     return true;
02158     }
02159 
02160 void Client::finishMoveResize( bool cancel )
02161     {
02162     leaveMoveResize();
02163     if( cancel )
02164         setGeometry( initialMoveResizeGeom );
02165     else
02166         setGeometry( moveResizeGeom );
02167     checkMaximizeGeometry();
02168 // FRAME    update();
02169     Notify::raise( isResize() ? Notify::ResizeEnd : Notify::MoveEnd );
02170     }
02171 
02172 void Client::leaveMoveResize()
02173     {
02174     // rule out non opaque windows from useless translucency settings, maybe resizes?
02175     if (rules()->checkMoveResizeMode( options->moveMode ) == Options::Opaque)
02176         setOpacity(true, savedOpacity_);
02177     if ((isResize() && options->removeShadowsOnResize) || (isMove() && options->removeShadowsOnMove))
02178         updateShadowSize();
02179     clearbound();
02180     if (geometryTip)
02181         {
02182         geometryTip->hide();
02183         delete geometryTip;
02184         geometryTip = NULL;
02185         }
02186     if ( ( isMove() && rules()->checkMoveResizeMode( options->moveMode ) != Options::Opaque )
02187       || ( isResize() && rules()->checkMoveResizeMode( options->resizeMode ) != Options::Opaque ) )
02188         ungrabXServer();
02189     XUngrabKeyboard( qt_xdisplay(), qt_x_time );
02190     XUngrabPointer( qt_xdisplay(), qt_x_time );
02191     XDestroyWindow( qt_xdisplay(), move_resize_grab_window );
02192     move_resize_grab_window = None;
02193     workspace()->setClientIsMoving(0);
02194     if( move_faked_activity )
02195         workspace()->unfakeActivity( this );
02196     move_faked_activity = false;
02197     moveResizeMode = false;
02198     delete eater;
02199     eater = 0;
02200     }
02201 
02202 // This function checks if it actually makes sense to perform a restricted move/resize.
02203 // If e.g. the titlebar is already outside of the workarea, there's no point in performing
02204 // a restricted move resize, because then e.g. resize would also move the window (#74555).
02205 // NOTE: Most of it is duplicated from handleMoveResize().
02206 void Client::checkUnrestrictedMoveResize()
02207     {
02208     if( unrestrictedMoveResize )
02209         return;
02210     QRect desktopArea = workspace()->clientArea( WorkArea, moveResizeGeom.center(), desktop());
02211     int left_marge, right_marge, top_marge, bottom_marge, titlebar_marge;
02212     // restricted move/resize - keep at least part of the titlebar always visible 
02213     // how much must remain visible when moved away in that direction
02214     left_marge = KMIN( 100 + border_right, moveResizeGeom.width());
02215     right_marge = KMIN( 100 + border_left, moveResizeGeom.width());
02216     // width/height change with opaque resizing, use the initial ones
02217     titlebar_marge = initialMoveResizeGeom.height();
02218     top_marge = border_bottom;
02219     bottom_marge = border_top;
02220     if( isResize())
02221         {
02222         if( moveResizeGeom.bottom() < desktopArea.top() + top_marge )
02223             unrestrictedMoveResize = true;
02224         if( moveResizeGeom.top() > desktopArea.bottom() - bottom_marge )
02225             unrestrictedMoveResize = true;
02226         if( moveResizeGeom.right() < desktopArea.left() + left_marge )
02227             unrestrictedMoveResize = true;
02228         if( moveResizeGeom.left() > desktopArea.right() - right_marge )
02229             unrestrictedMoveResize = true;
02230         if( !unrestrictedMoveResize && moveResizeGeom.top() < desktopArea.top() ) // titlebar mustn't go out
02231             unrestrictedMoveResize = true;
02232         }
02233     if( isMove())
02234         {
02235         if( moveResizeGeom.bottom() < desktopArea.top() + titlebar_marge - 1 ) // titlebar mustn't go out
02236             unrestrictedMoveResize = true;
02237         // no need to check top_marge, titlebar_marge already handles it
02238         if( moveResizeGeom.top() > desktopArea.bottom() - bottom_marge )
02239             unrestrictedMoveResize = true;
02240         if( moveResizeGeom.right() < desktopArea.left() + left_marge )
02241             unrestrictedMoveResize = true;
02242         if( moveResizeGeom.left() > desktopArea.right() - right_marge )
02243             unrestrictedMoveResize = true;
02244         }
02245     }
02246 
02247 void Client::handleMoveResize( int x, int y, int x_root, int y_root )
02248     {
02249     if(( mode == PositionCenter && !isMovable())
02250         || ( mode != PositionCenter && ( isShade() || !isResizable())))
02251         return;
02252 
02253     if ( !moveResizeMode )
02254         {
02255         QPoint p( QPoint( x, y ) - moveOffset );
02256         if (p.manhattanLength() >= 6)
02257             {
02258             if( !startMoveResize())
02259                 {
02260                 buttonDown = false;
02261                 setCursor( mode );
02262                 return;
02263                 }
02264             }
02265         else
02266             return;
02267         }
02268 
02269     // ShadeHover or ShadeActive, ShadeNormal was already avoided above
02270     if ( mode != PositionCenter && shade_mode != ShadeNone )
02271         setShade( ShadeNone );
02272 
02273     QPoint globalPos( x_root, y_root );
02274     // these two points limit the geometry rectangle, i.e. if bottomleft resizing is done,
02275     // the bottomleft corner should be at is at (topleft.x(), bottomright().y())
02276     QPoint topleft = globalPos - moveOffset;
02277     QPoint bottomright = globalPos + invertedMoveOffset;
02278     QRect previousMoveResizeGeom = moveResizeGeom;
02279 
02280     // TODO move whole group when moving its leader or when the leader is not mapped?
02281 
02282     // compute bounds
02283     // NOTE: This is duped in checkUnrestrictedMoveResize().
02284     QRect desktopArea = workspace()->clientArea( WorkArea, globalPos, desktop());
02285     int left_marge, right_marge, top_marge, bottom_marge, titlebar_marge;
02286     if( unrestrictedMoveResize ) // unrestricted, just don't let it go out completely
02287         left_marge = right_marge = top_marge = bottom_marge = titlebar_marge = 5;
02288     else // restricted move/resize - keep at least part of the titlebar always visible 
02289         {        
02290         // how much must remain visible when moved away in that direction
02291         left_marge = KMIN( 100 + border_right, moveResizeGeom.width());
02292         right_marge = KMIN( 100 + border_left, moveResizeGeom.width());
02293         // width/height change with opaque resizing, use the initial ones
02294         titlebar_marge = initialMoveResizeGeom.height();
02295         top_marge = border_bottom;
02296         bottom_marge = border_top;
02297         }
02298 
02299     bool update = false;
02300     if( isResize())
02301         {
02302         // first resize (without checking constrains), then snap, then check bounds, then check constrains
02303         QRect orig = initialMoveResizeGeom;
02304         Sizemode sizemode = SizemodeAny;
02305         switch ( mode )
02306             {
02307             case PositionTopLeft:
02308                 moveResizeGeom =  QRect( topleft, orig.bottomRight() ) ;
02309                 break;
02310             case PositionBottomRight:
02311                 moveResizeGeom =  QRect( orig.topLeft(), bottomright ) ;
02312                 break;
02313             case PositionBottomLeft:
02314                 moveResizeGeom =  QRect( QPoint( topleft.x(), orig.y() ), QPoint( orig.right(), bottomright.y()) ) ;
02315                 break;
02316             case PositionTopRight:
02317                 moveResizeGeom =  QRect( QPoint( orig.x(), topleft.y() ), QPoint( bottomright.x(), orig.bottom()) ) ;
02318                 break;
02319             case PositionTop:
02320                 moveResizeGeom =  QRect( QPoint( orig.left(), topleft.y() ), orig.bottomRight() ) ;
02321                 sizemode = SizemodeFixedH; // try not to affect height
02322                 break;
02323             case PositionBottom:
02324                 moveResizeGeom =  QRect( orig.topLeft(), QPoint( orig.right(), bottomright.y() ) ) ;
02325                 sizemode = SizemodeFixedH;
02326                 break;
02327             case PositionLeft:
02328                 moveResizeGeom =  QRect( QPoint( topleft.x(), orig.top() ), orig.bottomRight() ) ;
02329                 sizemode = SizemodeFixedW;
02330                 break;
02331             case PositionRight:
02332                 moveResizeGeom =  QRect( orig.topLeft(), QPoint( bottomright.x(), orig.bottom() ) ) ;
02333                 sizemode = SizemodeFixedW;
02334                 break;
02335             case PositionCenter:
02336             default:
02337                 assert( false );
02338                 break;
02339             }
02340 
02341         // adjust new size to snap to other windows/borders
02342         moveResizeGeom = workspace()->adjustClientSize( this, moveResizeGeom, mode );
02343 
02344         // NOTE: This is duped in checkUnrestrictedMoveResize().
02345         if( moveResizeGeom.bottom() < desktopArea.top() + top_marge )
02346             moveResizeGeom.setBottom( desktopArea.top() + top_marge );
02347         if( moveResizeGeom.top() > desktopArea.bottom() - bottom_marge )
02348             moveResizeGeom.setTop( desktopArea.bottom() - bottom_marge );
02349         if( moveResizeGeom.right() < desktopArea.left() + left_marge )
02350             moveResizeGeom.setRight( desktopArea.left() + left_marge );
02351         if( moveResizeGeom.left() > desktopArea.right() - right_marge )
02352             moveResizeGeom.setLeft(desktopArea.right() - right_marge );
02353         if( !unrestrictedMoveResize && moveResizeGeom.top() < desktopArea.top() ) // titlebar mustn't go out
02354             moveResizeGeom.setTop( desktopArea.top());
02355 
02356         QSize size = adjustedSize( moveResizeGeom.size(), sizemode );
02357         // the new topleft and bottomright corners (after checking size constrains), if they'll be needed
02358         topleft = QPoint( moveResizeGeom.right() - size.width() + 1, moveResizeGeom.bottom() - size.height() + 1 );
02359         bottomright = QPoint( moveResizeGeom.left() + size.width() - 1, moveResizeGeom.top() + size.height() - 1 );
02360         orig = moveResizeGeom;
02361         switch ( mode )
02362             { // these 4 corners ones are copied from above
02363             case PositionTopLeft:
02364                 moveResizeGeom =  QRect( topleft, orig.bottomRight() ) ;
02365                 break;
02366             case PositionBottomRight:
02367                 moveResizeGeom =  QRect( orig.topLeft(), bottomright ) ;
02368                 break;
02369             case PositionBottomLeft:
02370                 moveResizeGeom =  QRect( QPoint( topleft.x(), orig.y() ), QPoint( orig.right(), bottomright.y()) ) ;
02371                 break;
02372             case PositionTopRight:
02373                 moveResizeGeom =  QRect( QPoint( orig.x(), topleft.y() ), QPoint( bottomright.x(), orig.bottom()) ) ;
02374                 break;
02375             // The side ones can't be copied exactly - if aspect ratios are specified, both dimensions may change.
02376             // Therefore grow to the right/bottom if needed.
02377             // TODO it should probably obey gravity rather than always using right/bottom ?
02378             case PositionTop:
02379                 moveResizeGeom =  QRect( QPoint( orig.left(), topleft.y() ), QPoint( bottomright.x(), orig.bottom()) ) ;
02380                 break;
02381             case PositionBottom:
02382                 moveResizeGeom =  QRect( orig.topLeft(), QPoint( bottomright.x(), bottomright.y() ) ) ;
02383                 break;
02384             case PositionLeft:
02385                 moveResizeGeom =  QRect( QPoint( topleft.x(), orig.top() ), QPoint( orig.right(), bottomright.y()));
02386                 break;
02387             case PositionRight:
02388                 moveResizeGeom =  QRect( orig.topLeft(), QPoint( bottomright.x(), bottomright.y() ) ) ;
02389                 break;
02390             case PositionCenter:
02391             default:
02392                 assert( false );
02393                 break;
02394             }
02395         if( moveResizeGeom.size() != previousMoveResizeGeom.size())
02396             update = true;
02397         }
02398     else if( isMove())
02399         {
02400         assert( mode == PositionCenter );
02401         // first move, then snap, then check bounds
02402         moveResizeGeom.moveTopLeft( topleft );
02403         moveResizeGeom.moveTopLeft( workspace()->adjustClientPosition( this, moveResizeGeom.topLeft() ) );
02404         // NOTE: This is duped in checkUnrestrictedMoveResize().
02405         if( moveResizeGeom.bottom() < desktopArea.top() + titlebar_marge - 1 ) // titlebar mustn't go out
02406             moveResizeGeom.moveBottom( desktopArea.top() + titlebar_marge - 1 );
02407         // no need to check top_marge, titlebar_marge already handles it
02408         if( moveResizeGeom.top() > desktopArea.bottom() - bottom_marge )
02409             moveResizeGeom.moveTop( desktopArea.bottom() - bottom_marge );
02410         if( moveResizeGeom.right() < desktopArea.left() + left_marge )
02411             moveResizeGeom.moveRight( desktopArea.left() + left_marge );
02412         if( moveResizeGeom.left() > desktopArea.right() - right_marge )
02413             moveResizeGeom.moveLeft(desktopArea.right() - right_marge );
02414         if( moveResizeGeom.topLeft() != previousMoveResizeGeom.topLeft())
02415             update = true;
02416         }
02417     else
02418         assert( false );
02419 
02420     if( update )
02421         {
02422         if( rules()->checkMoveResizeMode
02423             ( isResize() ? options->resizeMode : options->moveMode ) == Options::Opaque )
02424             {
02425             setGeometry( moveResizeGeom );
02426             positionGeometryTip();
02427             }
02428         else if( rules()->checkMoveResizeMode
02429             ( isResize() ? options->resizeMode : options->moveMode ) == Options::Transparent )
02430             {
02431             clearbound();  // it's necessary to move the geometry tip when there's no outline
02432             positionGeometryTip(); // shown, otherwise it would cause repaint problems in case
02433             drawbound( moveResizeGeom ); // they overlap; the paint event will come after this,
02434             }                               // so the geometry tip will be painted above the outline
02435         }
02436     if ( isMove() )
02437       workspace()->clientMoved(globalPos, qt_x_time);
02438     }
02439 
02440 
02441 } // namespace
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This file is part of the documentation for kwin Library Version 3.4.1.
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Generated on Fri Sep 30 18:40:42 2005 by doxygen 1.4.3 written by Dimitri van Heesch, © 1997-2003