src/HYDRO_tests/test_GraphicsView.cxx

   1 // Copyright (C) 2014-2015  EDF-R&D
   2 // This library is free software; you can redistribute it and/or
   3 // modify it under the terms of the GNU Lesser General Public
   4 // License as published by the Free Software Foundation; either
   5 // version 2.1 of the License, or (at your option) any later version.
   6 //
   7 // This library is distributed in the hope that it will be useful,
   8 // but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  10 // Lesser General Public License for more details.
  11 //
  12 // You should have received a copy of the GNU Lesser General Public
  13 // License along with this library; if not, write to the Free Software
  14 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  15 //
  16 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  17 //
  18
  19 #include <test_GraphicsView.h>
  20 #include <GraphicsView_ViewManager.h>
  21 #include <GraphicsView_Viewer.h>
  22 #include <GraphicsView_ViewFrame.h>
  23 #include <GraphicsView_ViewPort.h>
  24 #include <GraphicsView_Object.h>
  25 #include <GraphicsView_Scene.h>
  26 #include <QTest>
  27 #include <QGraphicsPixmapItem>
  28 #include <QGraphicsSceneWheelEvent>
  29 #include <TestViewer.h>
  30
  31 extern QString REF_DATA_PATH;
  32
  33 class TestObject : public GraphicsView_Object
  34 {
  35 public:
  36   TestObject();
  37   virtual ~TestObject();
  38
  39   virtual void compute();
  40   virtual QRectF getRect() const;
  41   virtual QRectF boundingRect() const;
  42
  43 private:
  44   QGraphicsPixmapItem* myItem;
  45 };
  46
  47
  48 TestObject::TestObject()
  49   : myItem( 0 )
  50 {
  51   compute();
  52 }
  53
  54 TestObject::~TestObject()
  55 {
  56 }
  57
  58 void TestObject::compute()
  59 {
  60   QPixmap image( REF_DATA_PATH + "/garonne.png" );
  61   myItem = new QGraphicsPixmapItem( image );
  62   addToGroup( myItem );
  63 }
  64
  65 QRectF TestObject::getRect() const
  66 {
  67   return QRectF( 0, 0, 400, 300 );
  68 }
  69
  70 QRectF TestObject::boundingRect() const
  71 {
  72   if( myItem )
  73     return myItem->boundingRect();
  74   else
  75     return QRectF();
  76 }
  77
  78
  79
  80 #define CPPUNIT_ASSERT_VIEW( theCase )                              \
  81   {                                                                 \
  82     qApp->processEvents();                                          \
  83     QImage im = aViewPort->dumpView();                              \
  84     const bool SWAP_RGB_ORDER = true;                               \
  85     if( SWAP_RGB_ORDER )                                            \
  86     {                                                               \
  87       /* A temporary patch for bug in SALOME/OCC dump;              \
  88          the result image contains swapped RGB colors  */           \
  89       im = im.rgbSwapped();                                         \
  90     }                                                               \
  91     CPPUNIT_ASSERT_IMAGES2( &im, theCase );                         \
  92   }                                                                 \
  93
  94 void test_GraphicsView::test_wheel_zoom()
  95 {
  96   GraphicsView_ViewManager* aViewManager = new GraphicsView_ViewManager( 0, 0 );
  97   GraphicsView_Viewer* aViewer = new GraphicsView_Viewer( "test", 0 );
  98
  99   aViewManager->setViewModel( aViewer );
 100   GraphicsView_ViewFrame* aWindow = dynamic_cast<GraphicsView_ViewFrame*>( aViewManager->createViewWindow() );
 101   aWindow->setGeometry( 100, 100, 600, 450 );
 102   aWindow->show();
 103
 104   qApp->processEvents();
 105
 106   // 1. Initialize presentation
 107   GraphicsView_ViewPort* aViewPort = aViewer->getActiveViewPort();
 108   aViewPort->setInteractionFlag( GraphicsView_ViewPort::GlobalWheelScaling );
 109   // This is necessary to activate wheeling zoom
 110
 111   TestObject* obj = new TestObject();
 112   aViewPort->addItem( obj );
 113   aViewPort->fitAll();
 114   CPPUNIT_ASSERT_VIEW( "gv_fitall" );
 115
 116   // 2. Mouse wheel zoom
 117   QWheelEvent we1( QPoint( 10, 10 ), 120*10, Qt::NoButton, Qt::NoModifier );
 118   qApp->sendEvent( aViewPort->viewport(), &we1 );
 119   CPPUNIT_ASSERT_VIEW( "gv_zoomed_1" );
 120
 121   //QTest::qWait( 50000 );
 122
 123   QWheelEvent we2( QPoint( 650, 500 ), 120*10, Qt::NoButton, Qt::NoModifier );
 124   qApp->sendEvent( aViewPort->viewport(), &we2 );
 125   CPPUNIT_ASSERT_VIEW( "gv_zoomed_2" );
 126
 127   //QTest::qWait( 50000 );
 128 }