src/XGUI/XGUI_Viewer.cpp

   1 #include "XGUI_Viewer.h"
   2 #include "XGUI_MainWindow.h"
   3 #include "XGUI_ViewWindow.h"
   4 #include "XGUI_ViewPort.h"
   5
   6 #include <QMdiArea>
   7 #include <QMdiSubWindow>
   8
   9 #include <V3d_View.hxx>
  10
  11 #include <Aspect_DisplayConnection.hxx>
  12 #include <Graphic3d.hxx>
  13 #include <Graphic3d_GraphicDriver.hxx>
  14 #include <Geom_Axis2Placement.hxx>
  15 #include <AIS_Drawer.hxx>
  16 #include <Prs3d_DatumAspect.hxx>
  17 #include <Prs3d_LineAspect.hxx>
  18 #include <V3d_View.hxx>
  19 #include <Visual3d_View.hxx>
  20
  21 #ifdef WIN32
  22 #include <WNT_Window.hxx>
  23 #else
  24 #include <Xw_Window.hxx>
  25 #endif
  26
  27 XGUI_Viewer::InteractionStyle2StatesMap XGUI_Viewer::myStateMap;
  28 XGUI_Viewer::InteractionStyle2ButtonsMap XGUI_Viewer::myButtonMap;
  29 static bool isInitialized = false;
  30
  31 /*!
  32  Creates viewer 3d [ static ]
  33  */
  34 Handle(V3d_Viewer) CreateViewer(const Standard_ExtString name, const Standard_CString displayName,
  35                                 const Standard_CString domain, const Standard_Real viewSize,
  36                                 const V3d_TypeOfOrientation viewProjection,
  37                                 const Standard_Boolean computedMode,
  38                                 const Standard_Boolean defaultComputedMode)
  39 {
  40   static Handle(Graphic3d_GraphicDriver) aGraphicDriver;
  41   if (aGraphicDriver.IsNull()) {
  42     Handle(Aspect_DisplayConnection) aDisplayConnection;
  43 #ifndef WIN32
  44     aDisplayConnection = new Aspect_DisplayConnection( displayName );
  45 #else
  46     aDisplayConnection = new Aspect_DisplayConnection();
  47 #endif
  48     aGraphicDriver = Graphic3d::InitGraphicDriver(aDisplayConnection);
  49   }
  50
  51   return new V3d_Viewer(aGraphicDriver, name, domain, viewSize, viewProjection, Quantity_NOC_GRAY30,
  52                         V3d_ZBUFFER, V3d_GOURAUD, V3d_WAIT, computedMode, defaultComputedMode,
  53                         V3d_TEX_NONE);
  54 }
  55
  56 // VSR: Uncomment below line to allow texture background support in OCC viewer
  57 #define OCC_ENABLE_TEXTURED_BACKGROUND
  58
  59 /*!
  60  Get data for supported background modes: gradient types, identifiers and supported image formats
  61  */
  62 QString XGUI_Viewer::backgroundData(QStringList& gradList, QIntList& idList, QIntList& txtList)
  63 {
  64   gradList << tr("Horizontal gradient") << tr("Vertical gradient")
  65       << tr("First diagonal gradient") << tr("Second diagonal gradient")
  66       << tr("First corner gradient") << tr("Second corner gradient")
  67       << tr("Third corner gradient") << tr("Fourth corner gradient");
  68   idList << XGUI::HorizontalGradient << XGUI::VerticalGradient << XGUI::Diagonal1Gradient
  69       << XGUI::Diagonal2Gradient << XGUI::Corner1Gradient << XGUI::Corner2Gradient
  70       << XGUI::Corner3Gradient << XGUI::Corner4Gradient;
  71 #ifdef OCC_ENABLE_TEXTURED_BACKGROUND
  72   txtList << XGUI::CenterTexture << XGUI::TileTexture << XGUI::StretchTexture;
  73 #endif
  74   return tr("Image files (*.bmp *.gif *.pix *.xwd *.rgb *.rs)");
  75 }
  76
  77 XGUI_Viewer::XGUI_Viewer(XGUI_MainWindow* theParent, bool DisplayTrihedron)
  78     : QObject(theParent),
  79     myMainWindow(theParent),
  80     myPreselectionEnabled(true),
  81     mySelectionEnabled(true),
  82     myMultiSelectionEnabled(true),
  83     myIsRelative(true),
  84     myInteractionStyle(XGUI::STANDARD),
  85     myTrihedronSize(100),
  86     myActiveView(0)
  87 {
  88   if (!isInitialized) {
  89     isInitialized = true;
  90
  91     // standard interaction style
  92     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::ControlModifier;
  93     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::LeftButton;
  94
  95     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::PAN] = Qt::ControlModifier;
  96     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::PAN] = Qt::MidButton;
  97
  98     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::ControlModifier;
  99     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::RightButton;
 100
 101     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::ControlModifier;
 102     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::RightButton;
 103
 104     // "key free" interaction style
 105     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::NoModifier;
 106     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::RightButton;
 107
 108     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::PAN] = Qt::NoModifier;
 109     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::PAN] = Qt::MidButton;
 110
 111     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::NoModifier;
 112     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::LeftButton;
 113
 114     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoModifier; // unused
 115     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoButton; // unused
 116   }
 117
 118   // init CasCade viewers
 119   myV3dViewer = CreateViewer(TCollection_ExtendedString("Viewer3d").ToExtString(), "", "", 1000.0,
 120                              V3d_XposYnegZpos, Standard_True, Standard_True);
 121   myV3dViewer->SetDefaultLights();
 122
 123   // init selector
 124   myAISContext = new AIS_InteractiveContext(myV3dViewer);
 125   myAISContext->SelectionColor(Quantity_NOC_WHITE);
 126
 127   // display isoline on planar faces (box for ex.)
 128   myAISContext->IsoOnPlane(true);
 129
 130   if (DisplayTrihedron) {
 131     Handle(Geom_Axis2Placement) anAxis = new Geom_Axis2Placement(gp::XOY());
 132     myTrihedron = new AIS_Trihedron(anAxis);
 133     myTrihedron->SetInfiniteState( Standard_True);
 134
 135     Quantity_Color Col(193 / 255., 205 / 255., 193 / 255., Quantity_TOC_RGB);
 136     myTrihedron->SetArrowColor(Col.Name());
 137     myTrihedron->SetSize(myTrihedronSize);
 138     Handle(AIS_Drawer) drawer = myTrihedron->Attributes();
 139     if (drawer->HasDatumAspect()) {
 140       Handle(Prs3d_DatumAspect) daspect = drawer->DatumAspect();
 141       daspect->FirstAxisAspect()->SetColor(Quantity_Color(1.0, 0.0, 0.0, Quantity_TOC_RGB));
 142       daspect->SecondAxisAspect()->SetColor(Quantity_Color(0.0, 1.0, 0.0, Quantity_TOC_RGB));
 143       daspect->ThirdAxisAspect()->SetColor(Quantity_Color(0.0, 0.0, 1.0, Quantity_TOC_RGB));
 144     }
 145   }
 146   // set zooming style to standard
 147   //myZoomingStyle = 0;
 148 }
 149
 150 XGUI_Viewer::~XGUI_Viewer(void)
 151 {
 152   myAISContext.Nullify();
 153   myV3dViewer.Nullify();
 154 }
 155
 156 QMdiSubWindow* XGUI_Viewer::createView(V3d_TypeOfView theType)
 157 {
 158   // create view frame
 159   XGUI_ViewWindow* view = new XGUI_ViewWindow(this, theType);
 160   // get main view window (created by view frame)
 161   //OCCViewer_ViewWindow* vw = view->getView(OCCViewer_ViewFrame::MAIN_VIEW);
 162   // initialize main view window
 163   //initView( vw );
 164   // set default background for view window
 165   //vw->setBackground( background(0) ); // 0 means MAIN_VIEW (other views are not yet created here)
 166   //// connect signal from viewport
 167     //connect(view->viewPort(), SIGNAL(vpClosed()), this, SLOT(onViewClosed()));
 168     //connect(view->viewPort(), SIGNAL(vpMapped()), this, SLOT(onViewMapped()));
 169     if (myViews.size() == 0)
 170         setTrihedronShown(true);
 171
 172     view->setBackground(XGUI_ViewBackground(XGUI::VerticalGradient, Qt::white, QColor(Qt::blue).lighter()));
 173   //view->setBackground(XGUI_ViewBackground(Qt::black));
 174
 175   QMdiArea* aMDI = myMainWindow->mdiArea();
 176   QMdiSubWindow* aWnd = aMDI->addSubWindow(view, Qt::FramelessWindowHint);
 177     addView(aWnd);
 178   aWnd->setGeometry(0, 0, aMDI->width() / 2, aMDI->height() / 2);
 179   aWnd->show();
 180   return aWnd;
 181 }
 182
 183 /*! Sets hot button
 184  *\param theOper - hot operation
 185  *\param theState - adding state to state map operations.
 186  *\param theButton - adding state to button map operations.
 187  */
 188 void XGUI_Viewer::setHotButton(XGUI::InteractionStyle theInteractionStyle,
 189                                XGUI::HotOperation theOper, Qt::KeyboardModifiers theState,
 190                                Qt::MouseButtons theButton)
 191 {
 192   myStateMap[theInteractionStyle][theOper] = theState;
 193   myButtonMap[theInteractionStyle][theOper] = theButton;
 194 }
 195
 196 /*! Gets hot button for operation \a theOper.
 197  *\param theOper - input hot operation
 198  *\param theState - output state from state map operations.
 199  *\param theButton - output state from button map operations.
 200  */
 201 void XGUI_Viewer::getHotButton(XGUI::InteractionStyle theInteractionStyle,
 202                                XGUI::HotOperation theOper, Qt::KeyboardModifiers& theState,
 203                                Qt::MouseButtons& theButton)
 204 {
 205   theState = myStateMap[theInteractionStyle][theOper];
 206   theButton = myButtonMap[theInteractionStyle][theOper];
 207 }
 208
 209 /*!
 210  Changes visibility of trihedron to opposite
 211  */
 212 void XGUI_Viewer::toggleTrihedron()
 213 {
 214   setTrihedronShown(!isTrihedronVisible());
 215 }
 216
 217 /*!
 218  \return true if trihedron is visible
 219  */
 220 bool XGUI_Viewer::isTrihedronVisible() const
 221 {
 222   return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed(myTrihedron);
 223 }
 224
 225 /*!
 226  Sets visibility state of trihedron
 227  \param on - new state
 228  */
 229
 230 void XGUI_Viewer::setTrihedronShown(const bool on)
 231 {
 232   if (myTrihedron.IsNull())
 233     return;
 234
 235   if (on) {
 236     myAISContext->Display(myTrihedron);
 237     myAISContext->Deactivate(myTrihedron);
 238   } else {
 239     myAISContext->Erase(myTrihedron);
 240   }
 241 }
 242
 243 /*!
 244  \return trihedron size
 245  */
 246 double XGUI_Viewer::trihedronSize() const
 247 {
 248   double sz = 0;
 249   if (!myTrihedron.IsNull())
 250     sz = myTrihedron->Size();
 251   return sz;
 252 }
 253
 254 /*!
 255  Changes trihedron size
 256  \param sz - new size
 257  */
 258 void XGUI_Viewer::setTrihedronSize(const double sz, bool isRelative)
 259 {
 260   if (myTrihedronSize != sz || isRelative != myIsRelative) {
 261     myTrihedronSize = sz;
 262     myIsRelative = isRelative;
 263     updateTrihedron();
 264   }
 265 }
 266
 267 /*!
 268  * Update the size of the trihedron
 269  */
 270 void XGUI_Viewer::updateTrihedron()
 271 {
 272   if (myTrihedron.IsNull())
 273     return;
 274
 275   if (myIsRelative) {
 276     double newSz, oldSz;
 277
 278     if (computeTrihedronSize(newSz, oldSz))
 279       myTrihedron->SetSize(newSz);
 280
 281   } else if (myTrihedron->Size() != myTrihedronSize) {
 282     myTrihedron->SetSize(myTrihedronSize);
 283   }
 284 }
 285
 286 /*!
 287  Get new and current trihedron size corresponding to the current model size
 288  */
 289 bool XGUI_Viewer::computeTrihedronSize(double& theNewSize, double& theSize)
 290 {
 291   theNewSize = 100;
 292   theSize = 100;
 293
 294   //SRN: BUG IPAL8996, a usage of method ActiveView without an initialization
 295   Handle(V3d_Viewer) viewer = v3dViewer();
 296   viewer->InitActiveViews();
 297   if (!viewer->MoreActiveViews())
 298     return false;
 299
 300   Handle(V3d_View) view3d = viewer->ActiveView();
 301   //SRN: END of fix
 302
 303   if (view3d.IsNull())
 304     return false;
 305
 306   double Xmin = 0, Ymin = 0, Zmin = 0, Xmax = 0, Ymax = 0, Zmax = 0;
 307   double aMaxSide;
 308
 309   view3d->View()->MinMaxValues(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
 310
 311   if (Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() || Xmax == RealLast()
 312       || Ymax == RealLast() || Zmax == RealLast())
 313     return false;
 314
 315   aMaxSide = Xmax - Xmin;
 316   if (aMaxSide < Ymax - Ymin)
 317     aMaxSide = Ymax - Ymin;
 318   if (aMaxSide < Zmax - Zmin)
 319     aMaxSide = Zmax - Zmin;
 320
 321   // IPAL21687
 322   // The boundary box of the view may be initialized but nullified
 323   // (case of infinite objects)
 324   if (aMaxSide < Precision::Confusion())
 325     return false;
 326
 327   static float EPS = 5.0E-3;
 328   theSize = trihedron()->Size();
 329   //theNewSize = aMaxSide*aSizeInPercents / 100.0;
 330
 331   return fabs(theNewSize - theSize) > theSize * EPS || fabs(theNewSize - theSize) > theNewSize * EPS;
 332 }
 333
 334 void XGUI_Viewer::onViewClosed(QMdiSubWindow* theView)
 335 {
 336     if ( !theView )
 337         return;
 338
 339     emit deleteView( static_cast<XGUI_ViewWindow*>(theView->widget()) );
 340     removeView( theView );
 341
 342     // if this is last view
 343     if (myViews.size() == 0) {
 344         Standard_Integer aViewsNb = 0;
 345         for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
 346             ++aViewsNb;
 347         if ( aViewsNb < 2 ) {
 348             //clean up presentations before last view is closed
 349             myAISContext->RemoveAll(Standard_False);
 350         }
 351     }
 352 }
 353
 354 /*!Remove view window \a theView from view manager.
 355  *And close the last view, if it has \a theView.
 356 */
 357 void XGUI_Viewer::removeView( QMdiSubWindow* theView )
 358 {
 359     XGUI_ViewWindow* aWindow = static_cast<XGUI_ViewWindow*>(theView->widget());
 360
 361     aWindow->disconnect( this );
 362     myViews.removeAt( myViews.indexOf( theView ) );
 363     if ( myActiveView == theView )
 364         myActiveView = 0;
 365     if ( myViews.size() == 0 )
 366         emit lastViewClosed();
 367 }
 368
 369
 370 /*void XGUI_Viewer::onViewMapped()
 371 {
 372   setTrihedronShown(true);
 373 }*/
 374
 375
 376 void XGUI_Viewer::addView(QMdiSubWindow* theView)
 377 {
 378     XGUI_ViewWindow* aWindow = dynamic_cast<XGUI_ViewWindow*>(theView->widget());
 379
 380     connect(aWindow, SIGNAL(closed(QMdiSubWindow*)),
 381             this,    SLOT(onViewClosed(QMdiSubWindow*)));
 382
 383     connect(aWindow, SIGNAL(tryClosing(XGUI_ViewWindow*)),
 384             this,    SIGNAL(tryCloseView(XGUI_ViewWindow*)));
 385
 386     connect(aWindow, SIGNAL(mousePressed(XGUI_ViewWindow*, QMouseEvent*)),
 387             this,    SLOT(onMousePressed(XGUI_ViewWindow*, QMouseEvent*)));
 388
 389     connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
 390             this,    SIGNAL(mouseRelease(XGUI_ViewWindow*, QMouseEvent*)));
 391
 392     connect(aWindow, SIGNAL(mouseDoubleClicked(XGUI_ViewWindow*, QMouseEvent*)),
 393             this,    SIGNAL(mouseDoubleClick(XGUI_ViewWindow*, QMouseEvent*)));
 394
 395     connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
 396             this,    SIGNAL(mouseMove(XGUI_ViewWindow*, QMouseEvent*)));
 397
 398     connect(aWindow, SIGNAL(keyPressed(XGUI_ViewWindow*, QKeyEvent*)),
 399             this,    SIGNAL(keyPress(XGUI_ViewWindow*, QKeyEvent*)));
 400
 401     connect(aWindow, SIGNAL(keyReleased(XGUI_ViewWindow*, QKeyEvent*)),
 402             this,    SIGNAL(keyRelease(XGUI_ViewWindow*, QKeyEvent*)));
 403
 404     connect(aWindow, SIGNAL(contextMenuRequested( QContextMenuEvent* )),
 405             this,    SLOT  (onContextMenuRequested( QContextMenuEvent* )));
 406
 407     myViews.append(theView);
 408 }
 409
 410 /*!
 411     Emit activated for view \a view.
 412 */
 413 void XGUI_Viewer::onWindowActivated(QMdiSubWindow* view)
 414 {
 415     myActiveView = view;
 416 }