From 72579ed9e40e44dc8386e11bfc8cb020fa0c4f72 Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Thu, 17 Apr 2008 08:15:49 +0000
Subject: [PATCH] Improve data browser: support double click action for the
 data object

---
 src/SUIT/SUIT_DataBrowser.cxx | 74 +++++++++++++++++++++++------------
 src/SUIT/SUIT_DataBrowser.h   |  2 +
 2 files changed, 52 insertions(+), 24 deletions(-)

diff --git a/src/SUIT/SUIT_DataBrowser.cxx b/src/SUIT/SUIT_DataBrowser.cxx
index 08376398f..4828d6e97 100644
--- a/src/SUIT/SUIT_DataBrowser.cxx
+++ b/src/SUIT/SUIT_DataBrowser.cxx
@@ -245,6 +245,34 @@ void SUIT_DataBrowser::contextMenuPopup( QMenu* menu )
   createPopupMenu( menu );
 }
 
+/*!
+  \brief Set 'auto-size first column' flag value.
+
+  If this flag is set to \c true (by default), the first column width is resized
+  to its contents.
+
+  \param on 'auto-size first column' flag value
+  \sa setAutoSizeColumns()
+*/
+void SUIT_DataBrowser::setAutoSizeFirstColumn( const bool on )
+{
+  myAutoSizeFirstColumn = on;
+}
+
+/*!
+  \brief Set 'auto-size columns' flag value.
+
+  If this flag is set to \c true (by default is false), columns width except 
+  the first column is resized to its contents.
+
+  \param on 'auto-size columns' flag value
+  \sa setAutoSizeFirstColumn()
+*/
+void SUIT_DataBrowser::setAutoSizeColumns( const bool on )
+{
+  myAutoSizeColumns = on;
+}
+
 /*!
   \brief Process context menu request event.
   \param e context menu event
@@ -265,8 +293,10 @@ void SUIT_DataBrowser::init( SUIT_DataObject* root )
   
   setModel( m );
   setItemDelegate( qobject_cast<SUIT_ProxyModel*>( model() )->delegate() );
-  connect( treeView(), SIGNAL( sortingEnabled(bool ) ), 
-	   model(), SLOT( setSortingEnabled( bool ) ) );
+  connect( treeView(), SIGNAL( sortingEnabled( bool ) ), 
+	   model(),    SLOT( setSortingEnabled( bool ) ) );
+  connect( treeView(), SIGNAL( doubleClicked( const QModelIndex& ) ), 
+	   this,       SLOT( onDblClicked( const QModelIndex& ) ) );
   myShortcut = new QShortcut( Qt::Key_F5, this, SIGNAL( requestUpdate() ), SIGNAL( requestUpdate() ) );
 
   myAutoSizeFirstColumn = true;
@@ -284,7 +314,15 @@ void SUIT_DataBrowser::init( SUIT_DataObject* root )
   \sa updateKey(), setUpdateKey()
 */
 
+/*!
+  \fn void SUIT_DataBrowser::doubleClicked( SUIT_DataObject* o );
+  \brief This signal is emitted when a mouse button is double-clicked.
 
+  The data object the mouse was double-clicked on is specified by \a o.
+  The signal is only emitted when the object is valid.
+
+  \param o data object which is double-clicked
+*/
 
 /*!
   \brief Update internal modification time just after data model update
@@ -295,29 +333,17 @@ void SUIT_DataBrowser::onModelUpdated()
 }
 
 /*!
-  \brief Set 'auto-size first column' flag value.
-
-  If this flag is set to \c true (by default), the first column width is resized
-  to its contents.
-
-  \param on 'auto-size first column' flag value
-  \sa setAutoSizeColumns()
+  \brief Called when item is double-clicked in the tree view
+  \internal
+  
+  Emits signal doubleClicked( SUIT_DataObject* );
 */
-void SUIT_DataBrowser::setAutoSizeFirstColumn( const bool on )
+void SUIT_DataBrowser::onDblClicked( const QModelIndex& index )
 {
-  myAutoSizeFirstColumn = on;
-}
-
-/*!
-  \brief Set 'auto-size columns' flag value.
-
-  If this flag is set to \c true (by default is false), columns width except 
-  the first column is resized to its contents.
+  SUIT_ProxyModel* m = qobject_cast<SUIT_ProxyModel*>( model() );
 
-  \param on 'auto-size columns' flag value
-  \sa setAutoSizeFirstColumn()
-*/
-void SUIT_DataBrowser::setAutoSizeColumns( const bool on )
-{
-  myAutoSizeColumns = on;
+  if ( m ) {
+    SUIT_DataObject* obj = m->object( index );
+    if ( obj ) emit( doubleClicked( obj ) );
+  }
 }
diff --git a/src/SUIT/SUIT_DataBrowser.h b/src/SUIT/SUIT_DataBrowser.h
index f75b5a425..b1bc41f43 100644
--- a/src/SUIT/SUIT_DataBrowser.h
+++ b/src/SUIT/SUIT_DataBrowser.h
@@ -71,9 +71,11 @@ private:
 
 signals:
   void             requestUpdate();
+  void             doubleClicked( SUIT_DataObject* );
 
 private slots:
   void             onModelUpdated();
+  void             onDblClicked( const QModelIndex& );
 
 private:
   QShortcut*       myShortcut;
-- 
2.39.2