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("GT_HORIZONTALGRADIENT") << tr("GT_VERTICALGRADIENT")
  65       << tr("GT_FIRSTDIAGONALGRADIENT") << tr("GT_SECONDDIAGONALGRADIENT")
  66       << tr("GT_FIRSTCORNERGRADIENT") << tr("GT_SECONDCORNERGRADIENT")
  67       << tr("GT_THIRDCORNERGRADIENT") << tr("GT_FORTHCORNERGRADIENT");
  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("BG_IMAGE_FILES");
  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::green, Qt::blue));
 173
 174   QMdiArea* aMDI = myMainWindow->mdiArea();
 175   QMdiSubWindow* aWnd = aMDI->addSubWindow(view, Qt::FramelessWindowHint);
 176     addView(aWnd);
 177   aWnd->setGeometry(0, 0, aMDI->width() / 2, aMDI->height() / 2);
 178   aWnd->show();
 179   return aWnd;
 180 }
 181
 182 /*! Sets hot button
 183  *\param theOper - hot operation
 184  *\param theState - adding state to state map operations.
 185  *\param theButton - adding state to button map operations.
 186  */
 187 void XGUI_Viewer::setHotButton(XGUI::InteractionStyle theInteractionStyle,
 188                                XGUI::HotOperation theOper, Qt::KeyboardModifiers theState,
 189                                Qt::MouseButtons theButton)
 190 {
 191   myStateMap[theInteractionStyle][theOper] = theState;
 192   myButtonMap[theInteractionStyle][theOper] = theButton;
 193 }
 194
 195 /*! Gets hot button for operation \a theOper.
 196  *\param theOper - input hot operation
 197  *\param theState - output state from state map operations.
 198  *\param theButton - output state from button map operations.
 199  */
 200 void XGUI_Viewer::getHotButton(XGUI::InteractionStyle theInteractionStyle,
 201                                XGUI::HotOperation theOper, Qt::KeyboardModifiers& theState,
 202                                Qt::MouseButtons& theButton)
 203 {
 204   theState = myStateMap[theInteractionStyle][theOper];
 205   theButton = myButtonMap[theInteractionStyle][theOper];
 206 }
 207
 208 /*!
 209  Changes visibility of trihedron to opposite
 210  */
 211 void XGUI_Viewer::toggleTrihedron()
 212 {
 213   setTrihedronShown(!isTrihedronVisible());
 214 }
 215
 216 /*!
 217  \return true if trihedron is visible
 218  */
 219 bool XGUI_Viewer::isTrihedronVisible() const
 220 {
 221   return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed(myTrihedron);
 222 }
 223
 224 /*!
 225  Sets visibility state of trihedron
 226  \param on - new state
 227  */
 228
 229 void XGUI_Viewer::setTrihedronShown(const bool on)
 230 {
 231   if (myTrihedron.IsNull())
 232     return;
 233
 234   if (on) {
 235     myAISContext->Display(myTrihedron);
 236     myAISContext->Deactivate(myTrihedron);
 237   } else {
 238     myAISContext->Erase(myTrihedron);
 239   }
 240 }
 241
 242 /*!
 243  \return trihedron size
 244  */
 245 double XGUI_Viewer::trihedronSize() const
 246 {
 247   double sz = 0;
 248   if (!myTrihedron.IsNull())
 249     sz = myTrihedron->Size();
 250   return sz;
 251 }
 252
 253 /*!
 254  Changes trihedron size
 255  \param sz - new size
 256  */
 257 void XGUI_Viewer::setTrihedronSize(const double sz, bool isRelative)
 258 {
 259   if (myTrihedronSize != sz || isRelative != myIsRelative) {
 260     myTrihedronSize = sz;
 261     myIsRelative = isRelative;
 262     updateTrihedron();
 263   }
 264 }
 265
 266 /*!
 267  * Update the size of the trihedron
 268  */
 269 void XGUI_Viewer::updateTrihedron()
 270 {
 271   if (myTrihedron.IsNull())
 272     return;
 273
 274   if (myIsRelative) {
 275     double newSz, oldSz;
 276
 277     if (computeTrihedronSize(newSz, oldSz))
 278       myTrihedron->SetSize(newSz);
 279
 280   } else if (myTrihedron->Size() != myTrihedronSize) {
 281     myTrihedron->SetSize(myTrihedronSize);
 282   }
 283 }
 284
 285 /*!
 286  Get new and current trihedron size corresponding to the current model size
 287  */
 288 bool XGUI_Viewer::computeTrihedronSize(double& theNewSize, double& theSize)
 289 {
 290   theNewSize = 100;
 291   theSize = 100;
 292
 293   //SRN: BUG IPAL8996, a usage of method ActiveView without an initialization
 294   Handle(V3d_Viewer) viewer = v3dViewer();
 295   viewer->InitActiveViews();
 296   if (!viewer->MoreActiveViews())
 297     return false;
 298
 299   Handle(V3d_View) view3d = viewer->ActiveView();
 300   //SRN: END of fix
 301
 302   if (view3d.IsNull())
 303     return false;
 304
 305   double Xmin = 0, Ymin = 0, Zmin = 0, Xmax = 0, Ymax = 0, Zmax = 0;
 306   double aMaxSide;
 307
 308   view3d->View()->MinMaxValues(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
 309
 310   if (Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() || Xmax == RealLast()
 311       || Ymax == RealLast() || Zmax == RealLast())
 312     return false;
 313
 314   aMaxSide = Xmax - Xmin;
 315   if (aMaxSide < Ymax - Ymin)
 316     aMaxSide = Ymax - Ymin;
 317   if (aMaxSide < Zmax - Zmin)
 318     aMaxSide = Zmax - Zmin;
 319
 320   // IPAL21687
 321   // The boundary box of the view may be initialized but nullified
 322   // (case of infinite objects)
 323   if (aMaxSide < Precision::Confusion())
 324     return false;
 325
 326   static float EPS = 5.0E-3;
 327   theSize = trihedron()->Size();
 328   //theNewSize = aMaxSide*aSizeInPercents / 100.0;
 329
 330   return fabs(theNewSize - theSize) > theSize * EPS || fabs(theNewSize - theSize) > theNewSize * EPS;
 331 }
 332
 333 void XGUI_Viewer::onViewClosed(QMdiSubWindow* theView)
 334 {
 335     if ( !theView )
 336         return;
 337
 338     emit deleteView( static_cast<XGUI_ViewWindow*>(theView->widget()) );
 339     removeView( theView );
 340
 341     // if this is last view
 342     if (myViews.size() == 0) {
 343         Standard_Integer aViewsNb = 0;
 344         for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
 345             ++aViewsNb;
 346         if ( aViewsNb < 2 ) {
 347             //clean up presentations before last view is closed
 348             myAISContext->RemoveAll(Standard_False);
 349         }
 350     }
 351 }
 352
 353 /*!Remove view window \a theView from view manager.
 354  *And close the last view, if it has \a theView.
 355 */
 356 void XGUI_Viewer::removeView( QMdiSubWindow* theView )
 357 {
 358     XGUI_ViewWindow* aWindow = static_cast<XGUI_ViewWindow*>(theView->widget());
 359
 360     aWindow->disconnect( this );
 361     myViews.removeAt( myViews.indexOf( theView ) );
 362     if ( myActiveView == theView )
 363         myActiveView = 0;
 364     if ( myViews.size() == 0 )
 365         emit lastViewClosed();
 366 }
 367
 368
 369 /*void XGUI_Viewer::onViewMapped()
 370 {
 371   setTrihedronShown(true);
 372 }*/
 373
 374
 375 void XGUI_Viewer::addView(QMdiSubWindow* theView)
 376 {
 377     XGUI_ViewWindow* aWindow = dynamic_cast<XGUI_ViewWindow*>(theView->widget());
 378
 379     connect(aWindow, SIGNAL(closed(QMdiSubWindow*)),
 380             this,    SLOT(onViewClosed(QMdiSubWindow*)));
 381
 382     connect(aWindow, SIGNAL(tryClosing(XGUI_ViewWindow*)),
 383             this,    SIGNAL(tryCloseView(XGUI_ViewWindow*)));
 384
 385     connect(aWindow, SIGNAL(mousePressed(XGUI_ViewWindow*, QMouseEvent*)),
 386             this,    SLOT(onMousePressed(XGUI_ViewWindow*, QMouseEvent*)));
 387
 388     connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
 389             this,    SIGNAL(mouseRelease(XGUI_ViewWindow*, QMouseEvent*)));
 390
 391     connect(aWindow, SIGNAL(mouseDoubleClicked(XGUI_ViewWindow*, QMouseEvent*)),
 392             this,    SIGNAL(mouseDoubleClick(XGUI_ViewWindow*, QMouseEvent*)));
 393
 394     connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
 395             this,    SIGNAL(mouseMove(XGUI_ViewWindow*, QMouseEvent*)));
 396
 397     connect(aWindow, SIGNAL(keyPressed(XGUI_ViewWindow*, QKeyEvent*)),
 398             this,    SIGNAL(keyPress(XGUI_ViewWindow*, QKeyEvent*)));
 399
 400     connect(aWindow, SIGNAL(keyReleased(XGUI_ViewWindow*, QKeyEvent*)),
 401             this,    SIGNAL(keyRelease(XGUI_ViewWindow*, QKeyEvent*)));
 402
 403     connect(aWindow, SIGNAL(contextMenuRequested( QContextMenuEvent* )),
 404             this,    SLOT  (onContextMenuRequested( QContextMenuEvent* )));
 405
 406     myViews.append(theView);
 407 }
 408
 409 /*!
 410     Emit activated for view \a view.
 411 */
 412 void XGUI_Viewer::onWindowActivated(QMdiSubWindow* view)
 413 {
 414     myActiveView = view;
 415 }