Q_PROPERTY to define dialog title in field expression widget

python/gui/qgsfieldexpressionwidget.sip

@@ -17,6 +17,9 @@ class QgsFieldExpressionWidget : QWidget
     //! set the geometry calculator used in the expression dialog
     void setGeomCalculator( const QgsDistanceArea &da );
 
+    //! return the title used for the expression dialog
+    const QString expressionDialogTitle();
+
     /**
      * @brief currentField returns the currently selected field or expression if allowed
      * @param isExpression determines if the string returned is the name of a field or an expression
@@ -27,9 +30,6 @@ class QgsFieldExpressionWidget : QWidget
     //! Returns the currently used layer
     QgsVectorLayer* layer();
 
-  protected:
-    void changeEvent( QEvent* event );
-
   signals:
     //! the signal is emitted when the currently selected field changes
     void fieldChanged( QString fieldName );

src/gui/qgsfieldexpressionwidget.h

@@ -28,6 +28,7 @@ class QgsMapLayer;
 class QgsVectorLayer;
 class QgsFieldModel;
 
+
 /**
  * @brief The QgsFieldExpressionWidget class reates a widget to choose fields and edit expressions
  * It contains a combo boxto display the fields and expression and a button to open the expression dialog.
@@ -39,6 +40,8 @@ class QgsFieldModel;
 class GUI_EXPORT QgsFieldExpressionWidget : public QWidget
 {
     Q_OBJECT
+    Q_PROPERTY( QString expressionDialogTitle READ expressionDialogTitle WRITE setExpressionDialogTitle )
+
   public:
     /**
      * @brief QgsFieldExpressionWidget creates a widget with a combo box to display the fields and expression and a button to open the expression dialog
@@ -48,6 +51,9 @@ class GUI_EXPORT QgsFieldExpressionWidget : public QWidget
     //! define the title used in the expression dialog
     void setExpressionDialogTitle( QString title );
 
+    //! return the title used for the expression dialog
+    const QString expressionDialogTitle() { return mExpressionDialogTitle; }
+
     //! set the geometry calculator used in the expression dialog
     void setGeomCalculator( const QgsDistanceArea &da );
 
@@ -61,9 +67,6 @@ class GUI_EXPORT QgsFieldExpressionWidget : public QWidget
     //! Returns the currently used layer
     QgsVectorLayer* layer();
 
-  protected:
-    void changeEvent( QEvent* event );
-
   signals:
     //! the signal is emitted when the currently selected field changes
     void fieldChanged( QString fieldName );
@@ -102,6 +105,9 @@ class GUI_EXPORT QgsFieldExpressionWidget : public QWidget
 
     bool isExpressionValid( const QString expressionStr );
 
+  protected:
+    void changeEvent( QEvent* event );
+
   private:
     QComboBox* mCombo;
     QToolButton* mButton;