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   QMdiArea* aMDI = myMainWindow->mdiArea();
 150   connect(aMDI, SIGNAL(subWindowActivated(QMdiSubWindow*)), this, SLOT(onWindowActivated(QMdiSubWindow*)));
 151
 152 }
 153
 154 XGUI_Viewer::~XGUI_Viewer(void)
 155 {
 156   myAISContext.Nullify();
 157   myV3dViewer.Nullify();
 158 }
 159
 160 QMdiSubWindow* XGUI_Viewer::createView(V3d_TypeOfView theType)
 161 {
 162   // create view frame
 163   XGUI_ViewWindow* view = new XGUI_ViewWindow(this, theType);
 164   // get main view window (created by view frame)
 165   //OCCViewer_ViewWindow* vw = view->getView(OCCViewer_ViewFrame::MAIN_VIEW);
 166   // initialize main view window
 167   //initView( vw );
 168   // set default background for view window
 169   //vw->setBackground( background(0) ); // 0 means MAIN_VIEW (other views are not yet created here)
 170   //// connect signal from viewport
 171     //connect(view->viewPort(), SIGNAL(vpClosed()), this, SLOT(onViewClosed()));
 172     //connect(view->viewPort(), SIGNAL(vpMapped()), this, SLOT(onViewMapped()));
 173     if (myViews.size() == 0)
 174         setTrihedronShown(true);
 175
 176     view->setBackground(XGUI_ViewBackground(XGUI::VerticalGradient, Qt::white, QColor(Qt::blue).lighter()));
 177   //view->setBackground(XGUI_ViewBackground(Qt::black));
 178
 179   QMdiArea* aMDI = myMainWindow->mdiArea();
 180   QMdiSubWindow* aWnd = aMDI->addSubWindow(view, Qt::FramelessWindowHint);
 181     addView(aWnd);
 182   aWnd->setGeometry(0, 0, aMDI->width() / 2, aMDI->height() / 2);
 183   aWnd->show();
 184   return aWnd;
 185 }
 186
 187 /*! Sets hot button
 188  *\param theOper - hot operation
 189  *\param theState - adding state to state map operations.
 190  *\param theButton - adding state to button map operations.
 191  */
 192 void XGUI_Viewer::setHotButton(XGUI::InteractionStyle theInteractionStyle,
 193                                XGUI::HotOperation theOper, Qt::KeyboardModifiers theState,
 194                                Qt::MouseButtons theButton)
 195 {
 196   myStateMap[theInteractionStyle][theOper] = theState;
 197   myButtonMap[theInteractionStyle][theOper] = theButton;
 198 }
 199
 200 /*! Gets hot button for operation \a theOper.
 201  *\param theOper - input hot operation
 202  *\param theState - output state from state map operations.
 203  *\param theButton - output state from button map operations.
 204  */
 205 void XGUI_Viewer::getHotButton(XGUI::InteractionStyle theInteractionStyle,
 206                                XGUI::HotOperation theOper, Qt::KeyboardModifiers& theState,
 207                                Qt::MouseButtons& theButton)
 208 {
 209   theState = myStateMap[theInteractionStyle][theOper];
 210   theButton = myButtonMap[theInteractionStyle][theOper];
 211 }
 212
 213 /*!
 214  Changes visibility of trihedron to opposite
 215  */
 216 void XGUI_Viewer::toggleTrihedron()
 217 {
 218   setTrihedronShown(!isTrihedronVisible());
 219 }
 220
 221 /*!
 222  \return true if trihedron is visible
 223  */
 224 bool XGUI_Viewer::isTrihedronVisible() const
 225 {
 226   return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed(myTrihedron);
 227 }
 228
 229 /*!
 230  Sets visibility state of trihedron
 231  \param on - new state
 232  */
 233
 234 void XGUI_Viewer::setTrihedronShown(bool on)
 235 {
 236   if (myTrihedron.IsNull())
 237     return;
 238
 239   if (on) {
 240     myAISContext->Display(myTrihedron);
 241     myAISContext->Deactivate(myTrihedron);
 242   } else {
 243     myAISContext->Erase(myTrihedron);
 244   }
 245 }
 246
 247 /*!
 248  \return trihedron size
 249  */
 250 double XGUI_Viewer::trihedronSize() const
 251 {
 252   double sz = 0;
 253   if (!myTrihedron.IsNull())
 254     sz = myTrihedron->Size();
 255   return sz;
 256 }
 257
 258 /*!
 259  Changes trihedron size
 260  \param sz - new size
 261  */
 262 void XGUI_Viewer::setTrihedronSize(const double sz, bool isRelative)
 263 {
 264   if (myTrihedronSize != sz || isRelative != myIsRelative) {
 265     myTrihedronSize = sz;
 266     myIsRelative = isRelative;
 267     updateTrihedron();
 268   }
 269 }
 270
 271 /*!
 272  * Update the size of the trihedron
 273  */
 274 void XGUI_Viewer::updateTrihedron()
 275 {
 276   if (myTrihedron.IsNull())
 277     return;
 278
 279   if (myIsRelative) {
 280     double newSz, oldSz;
 281
 282     if (computeTrihedronSize(newSz, oldSz))
 283       myTrihedron->SetSize(newSz);
 284
 285   } else if (myTrihedron->Size() != myTrihedronSize) {
 286     myTrihedron->SetSize(myTrihedronSize);
 287   }
 288 }
 289
 290 /*!
 291  Get new and current trihedron size corresponding to the current model size
 292  */
 293 bool XGUI_Viewer::computeTrihedronSize(double& theNewSize, double& theSize)
 294 {
 295   theNewSize = 100;
 296   theSize = 100;
 297
 298   //SRN: BUG IPAL8996, a usage of method ActiveView without an initialization
 299   Handle(V3d_Viewer) viewer = v3dViewer();
 300   viewer->InitActiveViews();
 301   if (!viewer->MoreActiveViews())
 302     return false;
 303
 304   Handle(V3d_View) view3d = viewer->ActiveView();
 305   //SRN: END of fix
 306
 307   if (view3d.IsNull())
 308     return false;
 309
 310   double Xmin = 0, Ymin = 0, Zmin = 0, Xmax = 0, Ymax = 0, Zmax = 0;
 311   double aMaxSide;
 312
 313   view3d->View()->MinMaxValues(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
 314
 315   if (Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() || Xmax == RealLast()
 316       || Ymax == RealLast() || Zmax == RealLast())
 317     return false;
 318
 319   aMaxSide = Xmax - Xmin;
 320   if (aMaxSide < Ymax - Ymin)
 321     aMaxSide = Ymax - Ymin;
 322   if (aMaxSide < Zmax - Zmin)
 323     aMaxSide = Zmax - Zmin;
 324
 325   // IPAL21687
 326   // The boundary box of the view may be initialized but nullified
 327   // (case of infinite objects)
 328   if (aMaxSide < Precision::Confusion())
 329     return false;
 330
 331   static float EPS = (float)5.0E-3;
 332   theSize = trihedron()->Size();
 333   //theNewSize = aMaxSide*aSizeInPercents / 100.0;
 334
 335   return fabs(theNewSize - theSize) > theSize * EPS || fabs(theNewSize - theSize) > theNewSize * EPS;
 336 }
 337
 338 void XGUI_Viewer::onViewClosed(QMdiSubWindow* theView)
 339 {
 340     if ( !theView )
 341         return;
 342
 343     emit deleteView( static_cast<XGUI_ViewWindow*>(theView->widget()) );
 344     removeView( theView );
 345
 346     // if this is last view
 347     if (myViews.size() == 0) {
 348         Standard_Integer aViewsNb = 0;
 349         for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
 350             ++aViewsNb;
 351         if ( aViewsNb < 2 ) {
 352             //clean up presentations before last view is closed
 353             myAISContext->RemoveAll(Standard_False);
 354         }
 355     }
 356 }
 357
 358 /*!Remove view window \a theView from view manager.
 359  *And close the last view, if it has \a theView.
 360 */
 361 void XGUI_Viewer::removeView( QMdiSubWindow* theView )
 362 {
 363     XGUI_ViewWindow* aWindow = static_cast<XGUI_ViewWindow*>(theView->widget());
 364
 365     aWindow->disconnect( this );
 366     myViews.removeAt( myViews.indexOf( theView ) );
 367     if ( myActiveView == theView )
 368         myActiveView = 0;
 369     if ( myViews.size() == 0 )
 370         emit lastViewClosed();
 371 }
 372
 373
 374 /*void XGUI_Viewer::onViewMapped()
 375 {
 376   setTrihedronShown(true);
 377 }*/
 378
 379
 380 void XGUI_Viewer::addView(QMdiSubWindow* theView)
 381 {
 382     XGUI_ViewWindow* aWindow = dynamic_cast<XGUI_ViewWindow*>(theView->widget());
 383
 384     connect(aWindow, SIGNAL(closed(QMdiSubWindow*)),
 385             this,    SLOT(onViewClosed(QMdiSubWindow*)));
 386
 387     connect(aWindow, SIGNAL(tryClosing(XGUI_ViewWindow*)),
 388             this,    SIGNAL(tryCloseView(XGUI_ViewWindow*)));
 389
 390     connect(aWindow, SIGNAL(mousePressed(XGUI_ViewWindow*, QMouseEvent*)),
 391             this,    SIGNAL(mousePress(XGUI_ViewWindow*, QMouseEvent*)));
 392
 393     connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
 394             this,    SIGNAL(mouseRelease(XGUI_ViewWindow*, QMouseEvent*)));
 395
 396     connect(aWindow, SIGNAL(mouseDoubleClicked(XGUI_ViewWindow*, QMouseEvent*)),
 397             this,    SIGNAL(mouseDoubleClick(XGUI_ViewWindow*, QMouseEvent*)));
 398
 399     connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
 400             this,    SIGNAL(mouseMove(XGUI_ViewWindow*, QMouseEvent*)));
 401
 402     connect(aWindow, SIGNAL(keyPressed(XGUI_ViewWindow*, QKeyEvent*)),
 403             this,    SIGNAL(keyPress(XGUI_ViewWindow*, QKeyEvent*)));
 404
 405     connect(aWindow, SIGNAL(keyReleased(XGUI_ViewWindow*, QKeyEvent*)),
 406             this,    SIGNAL(keyRelease(XGUI_ViewWindow*, QKeyEvent*)));
 407
 408 //    connect(aWindow, SIGNAL(contextMenuRequested( QContextMenuEvent* )),
 409 //            this,    SLOT  (onContextMenuRequested( QContextMenuEvent* )));
 410
 411     myViews.append(theView);
 412 }
 413
 414 /*!
 415     Emit activated for view \a view.
 416 */
 417 void XGUI_Viewer::onWindowActivated(QMdiSubWindow* view)
 418 {
 419   if (view && (view != myActiveView)) {
 420     myActiveView = view;
 421     ((XGUI_ViewWindow*)myActiveView->widget())->windowActivated();
 422     QList<QMdiSubWindow*>::iterator aIt;
 423     for (aIt = myViews.begin(); aIt != myViews.end(); ++aIt)
 424       if ((*aIt) != myActiveView)
 425         ((XGUI_ViewWindow*)(*aIt)->widget())->windowDeactivated();
 426   }
 427 }