ticket:3987

Clear contents of search field by clicking ESC key.
OpenModelica · Jul 1, 2016 · 612047b · 612047b
1 parent 14f3280
commit 612047b
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diff --git a/OMEdit/OMEditGUI/Util/Utilities.cpp b/OMEdit/OMEditGUI/Util/Utilities.cpp
@@ -58,6 +58,7 @@ TreeSearchFilters::TreeSearchFilters(QWidget *pParent)
 {
   // create the search text box
   mpSearchTextBox = new QLineEdit;
+  mpSearchTextBox->installEventFilter(this);
   // show hide button
   mpShowHideButton = new QToolButton;
   QString text = tr("Show/hide filters");
@@ -105,6 +106,29 @@ TreeSearchFilters::TreeSearchFilters(QWidget *pParent)
   setLayout(pMainLayout);
 }
 
+/*!
+ * \brief TreeSearchFilters::eventFilter
+ * Handles the ESC key press for search text box
+ * \param pObject
+ * \param pEvent
+ * \return
+ */
+bool TreeSearchFilters::eventFilter(QObject *pObject, QEvent *pEvent)
+{
+  /* Ticket #3987
+   * Clear contents of search field by clicking ESC key.
+   */
+  QLineEdit *pSearchTextBox = qobject_cast<QLineEdit*>(pObject);
+  if (pSearchTextBox && pEvent->type() == QEvent::KeyPress) {
+    QKeyEvent *pKeyEvent = static_cast<QKeyEvent*>(pEvent);
+    if (pKeyEvent && pKeyEvent->key() == Qt::Key_Escape) {
+      pSearchTextBox->clear();
+      return true;
+    }
+  }
+  return QWidget::eventFilter(pObject, pEvent);
+}
+
 void TreeSearchFilters::showHideFilters(bool On)
 {
   if (On) {

diff --git a/OMEdit/OMEditGUI/Util/Utilities.h b/OMEdit/OMEditGUI/Util/Utilities.h
@@ -94,6 +94,8 @@ class TreeSearchFilters : public QWidget
   QCheckBox* getCaseSensitiveCheckBox() {return mpCaseSensitiveCheckBox;}
   QPushButton* getExpandAllButton() {return mpExpandAllButton;}
   QPushButton* getCollapseAllButton() {return mpCollapseAllButton;}
+
+  bool eventFilter(QObject *pObject, QEvent *pEvent);
 private:
   QLineEdit *mpSearchTextBox;
   QToolButton *mpShowHideButton;