Slot count can now be changed.

code/studio/src/plugins/gui_editor/expression_editor.cpp

@@ -28,6 +28,7 @@
 #include "expr_link_dlg.h"
 
 #include <QMessageBox>
+#include <QInputDialog>
 
 ExpressionEditor::ExpressionEditor( QWidget *parent ) :
 QMainWindow( parent )
@@ -70,6 +71,12 @@ void ExpressionEditor::contextMenuEvent( QContextMenuEvent *e )
 		a = menu.addAction( "Remove" );
 		connect( a, SIGNAL( triggered() ), this, SLOT( onDeleteSelection() ) );
 
+		if( m_selectionCount == 1 )
+		{
+			a = menu.addAction( "Change slot count" );
+			connect( a, SIGNAL( triggered() ), this, SLOT( onChangeSlotCount() ) );
+		}
+		else
 		if( m_selectionCount == 2 )
 		{
 			a = menu.addAction( "Link" );
@@ -203,4 +210,22 @@ void ExpressionEditor::onItemDblClicked( QTreeWidgetItem *item )
 	addNode( name, 3 );
 }
 
+void ExpressionEditor::onChangeSlotCount()
+{
+	QList< QGraphicsItem* > l = m_scene->selectedItems();
+	ExpressionNode *node = static_cast< ExpressionNode* >( l[ 0 ] );
+	int oldc = node->slotCount();
+
+	int c = QInputDialog::getInt( this,
+								tr( "Change slot count" ),
+								tr( "Enter new slot count" ),
+								oldc,
+								1,
+								26 );
+
+	if( oldc == c )
+		return;
+
+	node->changeSlotCount( c );
+}
 

code/studio/src/plugins/gui_editor/expression_editor.h

@@ -44,6 +44,7 @@ private Q_SLOTS:
 	void onAddNode2();
 	void onAddNode3();
 	void onItemDblClicked( QTreeWidgetItem *item );
+	void onChangeSlotCount();
 
 private:
 

code/studio/src/plugins/gui_editor/expression_node.cpp

@@ -115,9 +115,7 @@ QGraphicsItem( parent )
 ExpressionNode::~ExpressionNode()
 {
 	clearLinks();
-
+	clearSlots();
-	qDeleteAll( m_slots );
-	m_slots.clear();
 }
 
 QRectF ExpressionNode::boundingRect() const
@@ -176,6 +174,28 @@ QPointF ExpressionNode::slotPos( int slot ) const
 	return mp;
 }
 
+void ExpressionNode::changeSlotCount( int count )
+{
+	clearSlots();
+	clearLinks();
+	m_links.clear();
+
+	if( count <= 3 )
+		m_h = 100.0;
+	else
+		m_h = 100.0 + 20.0 * ( count - 3 );
+
+	createSlots( count );
+
+	update();
+}
+
+void ExpressionNode::clearSlots()
+{
+	qDeleteAll( m_slots );
+	m_slots.clear();
+}
+
 bool ExpressionNode::slotEmpty( int slot ) const
 {
 	if( m_links[ 0 ] == NULL )

code/studio/src/plugins/gui_editor/expression_node.h

@@ -42,6 +42,8 @@ public:
 	QPointF slotPos( int slot ) const;
 
 	int slotCount() const{ return m_slots.count(); }
+	void changeSlotCount( int count );
+	void clearSlots();
 
 	bool slotEmpty( int slot ) const;