From 983a3ad2a5bccc4532f4d42e5d12a8ba57f8f033 Mon Sep 17 00:00:00 2001
From: NathanW <woodrow.nathan@gmail.com>
Date: Tue, 12 Jul 2011 13:36:19 +1000
Subject: [PATCH] Insert expression string on double click

---
 src/gui/qgsexpressionbuilder.cpp | 9 +++++++++
 src/gui/qgsexpressionbuilder.h   | 1 +
 2 files changed, 10 insertions(+)

diff --git a/src/gui/qgsexpressionbuilder.cpp b/src/gui/qgsexpressionbuilder.cpp
index f9cca1f3f053..e6f912cb3e22 100644
--- a/src/gui/qgsexpressionbuilder.cpp
+++ b/src/gui/qgsexpressionbuilder.cpp
@@ -16,6 +16,8 @@
 #include "qgsexpressionbuilder.h"
 #include "ui_qgsexpressionbuilder.h"
 
+#include "qgslogger.h"
+
 QgsExpressionBuilderWidget::QgsExpressionBuilderWidget(QgsVectorLayer *layer)
     : QWidget(),
     mLayer( layer )
@@ -37,11 +39,18 @@ QgsExpressionBuilderWidget::~QgsExpressionBuilderWidget()
     
 }
 
+
 void QgsExpressionBuilderWidget::on_mAllPushButton_clicked()
 {
 
 }
 
+void QgsExpressionBuilderWidget::on_expressionTree_doubleClicked(const QModelIndex &index)
+{
+   QgsExpressionItem* item = static_cast<QgsExpressionItem*>(mModel->itemFromIndex(index));
+   txtExpressionString->insertPlainText(item->getExpressionText());
+}
+
 void QgsExpressionBuilderWidget::loadFieldNames()
 {
   if ( !mLayer )
diff --git a/src/gui/qgsexpressionbuilder.h b/src/gui/qgsexpressionbuilder.h
index 4befa5729ff7..d31e23233f79 100644
--- a/src/gui/qgsexpressionbuilder.h
+++ b/src/gui/qgsexpressionbuilder.h
@@ -65,6 +65,7 @@ class QgsExpressionBuilderWidget : public QWidget, private Ui::QgsExpressionBuil
 
 public slots:
     void on_mAllPushButton_clicked();
+    void on_expressionTree_doubleClicked(const QModelIndex &index);
 
 private:
     QgsVectorLayer *mLayer;