fix: #3688

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@15656 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: stopa85

src/app/qgsrasterlayerproperties.cpp

@@ -19,6 +19,7 @@
 
 #include "qgsmaptopixel.h"
 #include "qgsmapcanvas.h"
+#include "qgsmaprenderer.h"
 #include "qgslogger.h"
 #include "qgsapplication.h"
 #include "qgisapp.h"
@@ -33,6 +34,7 @@
 #include "qgsmaplayerregistry.h"
 #include "qgscontrastenhancement.h"
 #include "qgsrastertransparency.h"
+#include "qgsmaptoolemitpoint.h"
 
 #include <QTableWidgetItem>
 #include <QHeaderView>
@@ -205,8 +207,8 @@ QgsRasterLayerProperties::QgsRasterLayerProperties( QgsMapLayer* lyr, QgsMapCanv
   mPixelSelectorTool = 0;
   if ( mMapCanvas )
   {
-    mPixelSelectorTool = new QgsPixelSelectorTool( theCanvas );
-    connect( mPixelSelectorTool, SIGNAL( pixelSelected( int, int ) ), this, SLOT( pixelSelected( int, int ) ) );
+    mPixelSelectorTool = new QgsMapToolEmitPoint( theCanvas );
+    connect( mPixelSelectorTool, SIGNAL( canvasClicked( const QgsPoint&, Qt::MouseButton ) ), this, SLOT( pixelSelected( const QgsPoint& ) ) );
   }
   else
   {
@@ -2230,7 +2232,7 @@ void QgsRasterLayerProperties::on_rbtnThreeBandStdDev_toggled( bool theState )
   sboxThreeBandStdDev->setValue( mDefaultStandardDeviation );
 }
 
-void QgsRasterLayerProperties::pixelSelected( int x, int y )
+void QgsRasterLayerProperties::pixelSelected( const QgsPoint& canvasPoint )
 {
   //PixelSelectorTool has registered a mouse click on the canvas, so bring the dialog back to the front
   raise();
@@ -2242,7 +2244,7 @@ void QgsRasterLayerProperties::pixelSelected( int x, int y )
   {
     QMap< QString, QString > myPixelMap;
     mMapCanvas->unsetMapTool( mPixelSelectorTool );
-    mRasterLayer->identify( mMapCanvas->getCoordinateTransform( )->toMapCoordinates( x, y ), myPixelMap );
+    mRasterLayer->identify( mMapCanvas->mapRenderer()->mapToLayerCoordinates( mRasterLayer, canvasPoint ), myPixelMap );
     if ( tableTransparency->columnCount() == 2 )
     {
       QString myValue = myPixelMap[ mRasterLayer->grayBandName()];
@@ -3002,20 +3004,6 @@ void QgsRasterLayerProperties::on_pbnSaveStyleAs_clicked()
   }
 }
 
-QgsPixelSelectorTool::QgsPixelSelectorTool( QgsMapCanvas* theCanvas ) : QgsMapTool( theCanvas )
-{
-  mMapCanvas = theCanvas;
-}
-
-QgsPixelSelectorTool::~QgsPixelSelectorTool()
-{
-}
-
-void QgsPixelSelectorTool::canvasReleaseEvent( QMouseEvent* theMouseEvent )
-{
-  emit pixelSelected( theMouseEvent->x( ), theMouseEvent->y( ) );
-}
-
 void QgsRasterLayerProperties::on_btnResetNull_clicked( )
 {
   //If reset NoDataValue is checked do this first, will ignore what ever is in the LineEdit

src/app/qgsrasterlayerproperties.h

@@ -29,7 +29,7 @@
 class QgsMapLayer;
 class QgsMapCanvas;
 class QgsRasterLayer;
-class QgsPixelSelectorTool;
+class QgsMapToolEmitPoint;
 
 /**Property sheet for a raster map layer
   *@author Tim Sutton
@@ -89,7 +89,7 @@ class QgsRasterLayerProperties : public QDialog, private Ui::QgsRasterLayerPrope
     /** \brief slot executed when the reset null value to file default icon is selected */
     void on_btnResetNull_clicked( );
 
-    void pixelSelected( int x, int y );
+    void pixelSelected( const QgsPoint& );
     /** \brief this slot clears min max values from gui */
     void sboxSingleBandStdDev_valueChanged( double );
     /** \brief this slot clears min max values from gui */
@@ -213,29 +213,6 @@ class QgsRasterLayerProperties : public QDialog, private Ui::QgsRasterLayerPrope
     qreal mGradientWidth;
 
     QgsMapCanvas* mMapCanvas;
-    QgsPixelSelectorTool* mPixelSelectorTool;
+    QgsMapToolEmitPoint* mPixelSelectorTool;
 };
-
-/**
-  *Simple map tool for selecting pixels, specific to QgsRasterLayerProperties
-  */
-class QgsPixelSelectorTool: public QgsMapTool
-{
-    Q_OBJECT
-
-  public:
-    QgsPixelSelectorTool( QgsMapCanvas* );
-    ~QgsPixelSelectorTool( );
-
-    /** \brief Method to handle mouse release, i.e., select, event */
-    void canvasReleaseEvent( QMouseEvent* theMouseEvent );
-
-  signals:
-    /** \brief Alter the listener ( raster properties dialog ) that a mouse click was registered */
-    void pixelSelected( int x, int y );
-
-  private:
-    QgsMapCanvas * mMapCanvas;
-};
-
 #endif