Fix warnings emitted by linguist when parsing sources

Author: manisandro

src/app/composer/qgscomposerlegendwidget.cpp

@@ -1006,7 +1006,7 @@ QgsComposerLegendMenuProvider::QgsComposerLegendMenuProvider( QgsLayerTreeView*
     , mWidget( w )
 {}
 
-QMenu*QgsComposerLegendMenuProvider::createContextMenu()
+QMenu* QgsComposerLegendMenuProvider::createContextMenu()
 {
   if ( !mView->currentNode() )
     return nullptr;
@@ -1018,7 +1018,7 @@ QMenu*QgsComposerLegendMenuProvider::createContextMenu()
 
   if ( QgsLayerTree::isLayer( mView->currentNode() ) )
   {
-    menu->addAction( tr( "Reset to defaults" ), mWidget, SLOT( resetLayerNodeToDefaults() ) );
+    menu->addAction( QObject::tr( "Reset to defaults" ), mWidget, SLOT( resetLayerNodeToDefaults() ) );
     menu->addSeparator();
   }
 

src/app/composer/qgscomposerlegendwidget.h

@@ -107,9 +107,8 @@ class QgsComposerLegendWidget: public QgsComposerItemBaseWidget, private Ui::Qgs
 };
 
 
-class QgsComposerLegendMenuProvider : public QObject, public QgsLayerTreeViewMenuProvider
+class QgsComposerLegendMenuProvider : public QgsLayerTreeViewMenuProvider
 {
-    Q_OBJECT
 
   public:
     QgsComposerLegendMenuProvider( QgsLayerTreeView* view, QgsComposerLegendWidget* w );

src/core/raster/qgsrasterrenderer.cpp

@@ -24,8 +24,6 @@
 #include <QImage>
 #include <QPainter>
 
-#define tr( sourceText ) QCoreApplication::translate ( "QgsRasterRenderer", sourceText )
-
 // See #9101 before any change of NODATA_COLOR!
 const QRgb QgsRasterRenderer::NODATA_COLOR = qRgba( 0, 0, 0, 0 );
 

src/core/raster/qgsrasterrenderer.h

@@ -33,6 +33,9 @@ class QgsRasterTransparency;
   */
 class CORE_EXPORT QgsRasterRenderer : public QgsRasterInterface
 {
+
+    Q_DECLARE_TR_FUNCTIONS( QgsRasterRenderer );
+
   public:
     // Origin of min / max values
     enum MinMaxOrigin