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
  70   setViewName( aView );
  71   //myDesktop->addViewWindow( aView );
  72   //it is done automatically during creation of view
  73
  74   aView->setViewManager(this);
  75   emit viewCreated(aView);
  76   return aView;
  77 }
  78
  79 //***************************************************************
  80 void SUIT_ViewManager::createView()
  81 {
  82   createViewWindow();
  83 }
  84
  85 //***************************************************************
  86 bool SUIT_ViewManager::insertView(SUIT_ViewWindow* theView)
  87 {
  88   unsigned int aSize = myViews.size();
  89   unsigned int aNbItems = myViews.count()+1;
  90   if (aNbItems > aSize) {
  91     if (!myViews.resize(aNbItems)) {
  92       QMessageBox::critical(myDesktop, tr("Critical error"), tr("There is no memory for the new view!!!"));
  93       return false;
  94     }
  95     aSize = myViews.size();
  96   }
  97
  98   connect(theView, SIGNAL(closing(SUIT_ViewWindow*)),
  99           this,    SLOT(onDeleteView(SUIT_ViewWindow*)));
 100
 101   connect(theView, SIGNAL(mousePressed(SUIT_ViewWindow*, QMouseEvent*)),
 102           this,    SLOT(onMousePressed(SUIT_ViewWindow*, QMouseEvent*)));
 103
 104   connect(theView, SIGNAL(mouseReleased(SUIT_ViewWindow*, QMouseEvent*)),
 105           this,    SIGNAL(mouseRelease(SUIT_ViewWindow*, QMouseEvent*)));
 106
 107   connect(theView, SIGNAL(mouseDoubleClicked(SUIT_ViewWindow*, QMouseEvent*)),
 108           this,    SIGNAL(mouseDoubleClick(SUIT_ViewWindow*, QMouseEvent*)));
 109
 110   connect(theView, SIGNAL(mouseMoving(SUIT_ViewWindow*, QMouseEvent*)),
 111           this,    SIGNAL(mouseMove(SUIT_ViewWindow*, QMouseEvent*)));
 112
 113   connect(theView, SIGNAL(wheeling(SUIT_ViewWindow*, QWheelEvent*)),
 114           this,    SIGNAL(wheel(SUIT_ViewWindow*, QWheelEvent*)));
 115
 116   connect(theView, SIGNAL(keyPressed(SUIT_ViewWindow*, QKeyEvent*)),
 117           this,    SIGNAL(keyPress(SUIT_ViewWindow*, QKeyEvent*)));
 118
 119   connect(theView, SIGNAL(keyReleased(SUIT_ViewWindow*, QKeyEvent*)),
 120           this,    SIGNAL(keyRelease(SUIT_ViewWindow*, QKeyEvent*)));
 121
 122   connect(theView, SIGNAL(contextMenuRequested( QContextMenuEvent * )),
 123           this,    SLOT  (onContextMenuRequested( QContextMenuEvent * )));
 124
 125   for (uint i = 0; i < aSize; i++) {
 126     if (myViews[i]==0) {
 127       myViews.insert(i, theView);
 128       return true;
 129     }
 130   }
 131   return false;
 132 }
 133
 134
 135 //***************************************************************
 136 void SUIT_ViewManager::onDeleteView(SUIT_ViewWindow* theView)
 137 {
 138   emit deleteView(theView);
 139   removeView(theView);
 140 }
 141
 142 //***************************************************************
 143 void SUIT_ViewManager::removeView(SUIT_ViewWindow* theView)
 144 {
 145   theView->disconnect(this);
 146   myViews.remove(myViews.find(theView));
 147   if (myActiveView == theView)
 148     myActiveView = 0;
 149   int aNumItems = myViews.count();
 150   if (aNumItems == 0)
 151     emit lastViewClosed(this);
 152 }
 153
 154 //***************************************************************
 155 void SUIT_ViewManager::onMousePressed(SUIT_ViewWindow* theView, QMouseEvent* theEvent)
 156 {
 157   emit mousePress(theView, theEvent);
 158 }
 159
 160 //***************************************************************
 161 void SUIT_ViewManager::onWindowActivated(SUIT_ViewWindow* view)
 162 {
 163   if (view) {
 164     unsigned int aSize = myViews.size();
 165     for (uint i = 0; i < aSize; i++) {
 166       if (myViews[i] && myViews[i] == view) {
 167         myActiveView = view;
 168         emit activated( this );
 169         return;
 170       }
 171     }
 172   }
 173 }
 174
 175 //***************************************************************
 176 void SUIT_ViewManager::closeAllViews()
 177 {
 178   unsigned int aSize = myViews.size();
 179   for (uint i = 0; i < aSize; i++) {
 180     if (myViews[i])
 181       myViews[i]->close();
 182   }
 183 }
 184
 185
 186 //***************************************************************
 187 QString  SUIT_ViewManager::getType() const
 188 {
 189   return (!myViewModel)? "": myViewModel->getType();
 190 }
 191
 192 //***************************************************************
 193 SUIT_Study* SUIT_ViewManager::study() const
 194 {
 195     return myStudy;
 196 }
 197
 198 //***************************************************************
 199 void SUIT_ViewManager::onDeleteStudy()
 200 {
 201     myStudy = NULL;
 202 }
 203
 204 //***************************************************************
 205 void SUIT_ViewManager::onContextMenuRequested( QContextMenuEvent* e )
 206 {
 207   // invoke method of SUIT_PopupClient, which notifies about popup
 208   contextMenuRequest( e );
 209 }
 210
 211 //***************************************************************
 212 void SUIT_ViewManager::contextMenuPopup( QPopupMenu* popup )
 213 {
 214   SUIT_ViewModel* vm = getViewModel();
 215   if ( vm )
 216     vm->contextMenuPopup( popup );
 217 }