src/SUIT/SUIT_ViewManager.cxx

   1 #include "SUIT_ViewManager.h"
   2
   3 #include "SUIT_Desktop.h"
   4 #include "SUIT_ViewModel.h"
   5 #include "SUIT_Study.h"
   6
   7 #include <qcursor.h>
   8 #include <qmessagebox.h>
   9
  10 #ifdef WNT
  11 #include <windows.h>
  12 #endif
  13
  14 //***************************************************************
  15 SUIT_ViewManager::SUIT_ViewManager( SUIT_Study* theStudy,
  16                                     SUIT_Desktop* theDesktop,
  17                                     SUIT_ViewModel* theViewModel )
  18 : QObject( 0 ),
  19 myDesktop( theDesktop ),
  20 myTitle( "Default viewer" ),
  21 myStudy( NULL )
  22 {
  23   myViewModel = 0;
  24   myActiveView = 0;
  25   setViewModel(theViewModel);
  26   connect(theDesktop, SIGNAL(windowActivated(SUIT_ViewWindow*)),
  27           this,       SLOT(onWindowActivated(SUIT_ViewWindow*)));
  28
  29   myStudy = theStudy;
  30   if( myStudy )
  31     connect( myStudy, SIGNAL( destroyed() ), this, SLOT( onDeleteStudy() ) );
  32 }
  33
  34 //***************************************************************
  35 SUIT_ViewManager::~SUIT_ViewManager()
  36 {
  37   if (myViewModel) {
  38     myViewModel->setViewManager(0);
  39     delete myViewModel;
  40   }
  41 }
  42
  43 //***************************************************************
  44 void SUIT_ViewManager::setViewModel(SUIT_ViewModel* theViewModel)
  45 {
  46   if (myViewModel && myViewModel != theViewModel) {
  47     myViewModel->setViewManager(0);
  48     delete myViewModel;
  49   }
  50   myViewModel = theViewModel;
  51   if (myViewModel)
  52     myViewModel->setViewManager(this);
  53 }
  54
  55 //***************************************************************
  56 void SUIT_ViewManager::setViewName(SUIT_ViewWindow* theView)
  57 {
  58   int aPos = myViews.find(theView);
  59   theView->setCaption(myTitle + QString(":%1").arg(aPos+1));
  60 }
  61
  62 //***************************************************************
  63 SUIT_ViewWindow* SUIT_ViewManager::createViewWindow()
  64 {
  65   SUIT_ViewWindow* aView = myViewModel->createView(myDesktop);
  66
  67   if ( !insertView( aView ) ){
  68     delete aView;
  69     return 0;
  70   }
  71
  72   setViewName( aView );
  73   //myDesktop->addViewWindow( aView );
  74   //it is done automatically during creation of view
  75
  76   aView->setViewManager(this);
  77
  78   emit viewCreated(aView);
  79
  80   // Special treatment for the case when <aView> is the first one in this view manager
  81   // -> call onWindowActivated() directly, because somebody may always want
  82   // to use getActiveView()
  83   if ( !myActiveView )
  84     onWindowActivated( aView );
  85
  86   return aView;
  87 }
  88
  89 //***************************************************************
  90 void SUIT_ViewManager::createView()
  91 {
  92   createViewWindow();
  93 }
  94
  95 //***************************************************************
  96 bool SUIT_ViewManager::insertView(SUIT_ViewWindow* theView)
  97 {
  98   unsigned int aSize = myViews.size();
  99   unsigned int aNbItems = myViews.count()+1;
 100   if (aNbItems > aSize) {
 101     if (!myViews.resize(aNbItems)) {
 102       QMessageBox::critical(myDesktop, tr("Critical error"), tr("There is no memory for the new view!!!"));
 103       return false;
 104     }
 105     aSize = myViews.size();
 106   }
 107
 108   connect(theView, SIGNAL(closing(SUIT_ViewWindow*)),
 109           this,    SLOT(onDeleteView(SUIT_ViewWindow*)));
 110
 111   connect(theView, SIGNAL(mousePressed(SUIT_ViewWindow*, QMouseEvent*)),
 112           this,    SLOT(onMousePressed(SUIT_ViewWindow*, QMouseEvent*)));
 113
 114   connect(theView, SIGNAL(mouseReleased(SUIT_ViewWindow*, QMouseEvent*)),
 115           this,    SIGNAL(mouseRelease(SUIT_ViewWindow*, QMouseEvent*)));
 116
 117   connect(theView, SIGNAL(mouseDoubleClicked(SUIT_ViewWindow*, QMouseEvent*)),
 118           this,    SIGNAL(mouseDoubleClick(SUIT_ViewWindow*, QMouseEvent*)));
 119
 120   connect(theView, SIGNAL(mouseMoving(SUIT_ViewWindow*, QMouseEvent*)),
 121           this,    SIGNAL(mouseMove(SUIT_ViewWindow*, QMouseEvent*)));
 122
 123   connect(theView, SIGNAL(wheeling(SUIT_ViewWindow*, QWheelEvent*)),
 124           this,    SIGNAL(wheel(SUIT_ViewWindow*, QWheelEvent*)));
 125
 126   connect(theView, SIGNAL(keyPressed(SUIT_ViewWindow*, QKeyEvent*)),
 127           this,    SIGNAL(keyPress(SUIT_ViewWindow*, QKeyEvent*)));
 128
 129   connect(theView, SIGNAL(keyReleased(SUIT_ViewWindow*, QKeyEvent*)),
 130           this,    SIGNAL(keyRelease(SUIT_ViewWindow*, QKeyEvent*)));
 131
 132   connect(theView, SIGNAL(contextMenuRequested( QContextMenuEvent * )),
 133           this,    SLOT  (onContextMenuRequested( QContextMenuEvent * )));
 134
 135   for (uint i = 0; i < aSize; i++) {
 136     if (myViews[i]==0) {
 137       myViews.insert(i, theView);
 138       return true;
 139     }
 140   }
 141   return false;
 142 }
 143
 144
 145 //***************************************************************
 146 void SUIT_ViewManager::onDeleteView(SUIT_ViewWindow* theView)
 147 {
 148   emit deleteView(theView);
 149   removeView(theView);
 150 }
 151
 152 //***************************************************************
 153 void SUIT_ViewManager::removeView(SUIT_ViewWindow* theView)
 154 {
 155   theView->disconnect(this);
 156   myViews.remove(myViews.find(theView));
 157   if (myActiveView == theView)
 158     myActiveView = 0;
 159   int aNumItems = myViews.count();
 160   if (aNumItems == 0)
 161     emit lastViewClosed(this);
 162 }
 163
 164 //***************************************************************
 165 void SUIT_ViewManager::onMousePressed(SUIT_ViewWindow* theView, QMouseEvent* theEvent)
 166 {
 167   emit mousePress(theView, theEvent);
 168 }
 169
 170 //***************************************************************
 171 void SUIT_ViewManager::onWindowActivated(SUIT_ViewWindow* view)
 172 {
 173   if (view) {
 174     unsigned int aSize = myViews.size();
 175     for (uint i = 0; i < aSize; i++) {
 176       if (myViews[i] && myViews[i] == view) {
 177         myActiveView = view;
 178         emit activated( this );
 179         return;
 180       }
 181     }
 182   }
 183 }
 184
 185 //***************************************************************
 186 void SUIT_ViewManager::closeAllViews()
 187 {
 188   unsigned int aSize = myViews.size();
 189   for (uint i = 0; i < aSize; i++) {
 190     if (myViews[i])
 191       myViews[i]->close();
 192   }
 193 }
 194
 195
 196 //***************************************************************
 197 QString  SUIT_ViewManager::getType() const
 198 {
 199   return (!myViewModel)? "": myViewModel->getType();
 200 }
 201
 202 //***************************************************************
 203 SUIT_Study* SUIT_ViewManager::study() const
 204 {
 205     return myStudy;
 206 }
 207
 208 //***************************************************************
 209 void SUIT_ViewManager::onDeleteStudy()
 210 {
 211     myStudy = NULL;
 212 }
 213
 214 //***************************************************************
 215 void SUIT_ViewManager::onContextMenuRequested( QContextMenuEvent* e )
 216 {
 217   /*! invoke method of SUIT_PopupClient, which notifies about popup*/
 218   contextMenuRequest( e );
 219 }
 220
 221 //***************************************************************
 222 void SUIT_ViewManager::contextMenuPopup( QPopupMenu* popup )
 223 {
 224   SUIT_ViewModel* vm = getViewModel();
 225   if ( vm )
 226     vm->contextMenuPopup( popup );
 227 }