ENH: Implemented mouse-click and -move in Quicklook-view.

Code/Application/Monteverdi2/mvdMainWindow.cxx

@@ -474,6 +474,14 @@ MainWindow
   //
   // Connect image-views for ROI-changed events.
 
+  assert( m_ImageView!=NULL );
+
+  const AbstractImageViewManipulator* imageViewManipulator =
+    m_ImageView->GetManipulator();
+
+  assert( imageViewManipulator!=NULL );
+
+
   ImageViewWidget* quicklookView = GetQuicklookView();
   assert( quicklookView!=NULL );
 
@@ -482,7 +490,6 @@ MainWindow
 
   assert( quicklookManipulator!=NULL );
 
-  assert( m_ImageView!=NULL );
 
   QObject::connect(
     m_ImageView,
@@ -495,6 +502,22 @@ MainWindow
       OnRoiChanged( const PointType&, const SizeType&, const SpacingType& )
     )
   );
+
+  QObject::connect(
+    quicklookView,
+    SIGNAL( CenterRoiRequested( const PointType& ) ),
+    // to:
+    imageViewManipulator,
+    SLOT( CenterOn( const PointType& ) )
+  );
+
+  QObject::connect(
+    quicklookManipulator,
+    SIGNAL( RefreshViewRequested() ),
+    // to:
+    m_ImageView,
+    SLOT( updateGL() )
+  );
 }
 
 #endif // USE_ICE_IMAGE_VIEW

Code/Common/Gui/mvdAbstractImageViewManipulator.h

@@ -121,9 +121,6 @@ public:
     SetupRenderingContext(
       AbstractImageViewRenderer::RenderingContext * const ) const =0;
 
-  /**
-   */
-  virtual void CenterOn( const PointType& point ) =0;
   /**
    */
   virtual void ZoomIn() =0;
@@ -160,6 +157,9 @@ public:
 //
 // Public SLOTS.
 public slots:
+  /**
+   */
+  virtual void CenterOn( const PointType& point ) =0;
 
   /*-[ SIGNALS SECTION ]-----------------------------------------------------*/
 
@@ -169,15 +169,20 @@ signals:
   /**
    */
   void RefreshViewRequested();
-  /**
-   */
-  void RoiChanged( PointType origin, SizeType size, SpacingType spacing );
   /**
    */
   void ZoomToExtentRequested();
   /**
    */
   void ZoomToFullResolutionRequested();
+  /**
+   */
+  void CenterRoiRequested( const PointType& center );
+  /**
+   */
+  void RoiChanged( const PointType& origin,
+                   const SizeType& size,
+                   const SpacingType& spacing );
 
   /*-[ PROTECTED SECTION ]---------------------------------------------------*/
 

Code/Common/Gui/mvdImageViewManipulator.h

@@ -186,6 +186,9 @@ protected:
   /**
    */
   QPoint m_MousePressPosition;
+  /**
+   */
+  otb::ViewSettings::Pointer m_ViewSettings;
 
   /*-[ PRIVATE SLOTS SECTION ]-----------------------------------------------*/
 
@@ -213,9 +216,6 @@ private:
 //
 // Private attributes.
 private:
-  /**
-   */
-  otb::ViewSettings::Pointer m_ViewSettings;
   /**
    */
   otb::ViewSettings::PointType m_MousePressOrigin;

Code/Common/Gui/mvdImageViewWidget.cxx

@@ -188,9 +188,19 @@ ImageViewWidget
   );
 
   QObject::connect(
-    m_Manipulator, SIGNAL( RoiChanged( PointType, SizeType, SpacingType ) ),
+    m_Manipulator,
+    SIGNAL( CenterRoiRequested( const PointType& ) ),
     // to:
-    this, SIGNAL( RoiChanged( PointType, SizeType, SpacingType ) )
+    this,
+    SIGNAL( CenterRoiRequested( const PointType& ) )
+  );
+
+  QObject::connect(
+    m_Manipulator,
+    SIGNAL( RoiChanged( const PointType&, const SizeType&, const SpacingType& ) ),
+    // to:
+    this,
+    SIGNAL( RoiChanged( const PointType&, const SizeType&, const SpacingType& ) )
   );
 
   QObject::connect(

Code/Common/Gui/mvdImageViewWidget.h

@@ -162,7 +162,12 @@ public slots:
 signals:
   /**
    */
-  void RoiChanged( PointType origin, SizeType size, SpacingType spacing );
+  void CenterRoiRequested( const PointType& center );
+  /**
+   */
+  void RoiChanged( const PointType& origin,
+                   const SizeType& size,
+                   const SpacingType& spacing );
 
   /*-[ PROTECTED SECTION ]---------------------------------------------------*/
 

Code/Common/Gui/mvdQuicklookViewManipulator.cxx

@@ -138,7 +138,25 @@ QuicklookViewManipulator
 
   // qDebug() << this << ":" << event;
 
-  
+
+  Qt::MouseButtons buttons = event->buttons();
+  Qt::KeyboardModifiers modifiers = event->modifiers();
+
+  if( buttons==Qt::LeftButton && modifiers==Qt::NoModifier )
+    {
+    assert( !m_ViewSettings.IsNull() );
+
+    PointType center;
+
+    m_ViewSettings->ScreenToViewPortTransform(
+      static_cast< double >( m_MousePressPosition.x() ),
+      static_cast< double >( m_MousePressPosition.y() ),
+      center[ 0 ],
+      center[ 1 ]
+    );
+
+    emit CenterRoiRequested( center );
+    }
 }
 
 /******************************************************************************/
@@ -155,21 +173,20 @@ QuicklookViewManipulator
 
   if( buttons==Qt::LeftButton && modifiers==Qt::NoModifier )
     {
-    
-    // Cursor moves from press position to current position;
-    // Image moves the same direction, so apply the negative translation.
-    m_RoiOrigin =
-      ImageViewManipulator::Translate(
-        event->pos() - m_MousePressPosition,
-        m_RoiOrigin,
-        m_RoiSpacing
-      );
+    assert( !m_ViewSettings.IsNull() );
 
-    m_MousePressPosition = event->pos();
+    PointType center;
+
+    m_ViewSettings->ScreenToViewPortTransform(
+      static_cast< double >( m_MousePressPosition.x() ),
+      static_cast< double >( m_MousePressPosition.y() ),
+      center[ 0 ],
+      center[ 1 ]
+    );
 
-    emit RefreshViewRequested();
+    m_MousePressPosition = event->pos();
 
-    emit RoiChanged( m_RoiOrigin, m_RoiSize, m_RoiSpacing );
+    emit CenterRoiRequested( center );
     }
 }
 
@@ -228,7 +245,9 @@ QuicklookViewManipulator
 /*****************************************************************************/
 void
 QuicklookViewManipulator
-::OnRoiChanged( PointType origin, SizeType size, SpacingType spacing )
+::OnRoiChanged( const PointType& origin,
+                const SizeType& size,
+                const SpacingType& spacing )
 {
   qDebug() << this << ":OnRoiChanged()";
   qDebug() << "origin :" << origin[ 0 ] << "," << origin[ 1 ];

Code/Common/Gui/mvdQuicklookViewManipulator.h

@@ -173,7 +173,9 @@ private:
 private slots:
   /**
    */
-  void OnRoiChanged( PointType origin, SizeType size, SpacingType spacing );
+  void OnRoiChanged( const PointType& origin,
+                     const SizeType& size,
+                     const SpacingType& spacing );
 };
 
 } // end namespace 'mvd'