When changing the value of a node, change the size the node if needed.

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

@@ -271,7 +271,6 @@ void ExpressionEditor::onChangeValue()
 		return;
 
 	node->setValue( newValue );
-	node->update();
 }
 
 void ExpressionEditor::addExpression( const ExpressionInfo *info )

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

@@ -257,6 +257,19 @@ void ExpressionNode::setSlotNames( const QList< QString > &l )
 	}
 }
 
+void ExpressionNode::setValue( const QString &value )
+{
+	m_value = value;
+
+	int c = m_value.count();
+	if( c < 15 )
+		m_w = 100.0;
+	else
+		m_w = m_w + ( 100.0 / 15.0 ) * ( c - 15.0 );
+
+	update();
+}
+
 void ExpressionNode::mouseMoveEvent( QGraphicsSceneMouseEvent *e )
 {
 	for( int i = 0; i < m_links.count(); i++ )

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

@@ -58,7 +58,7 @@ public:
 	void setVariable( bool b ){ m_variable = b; }
 	bool variable() const{ return m_variable; }
 
-	void setValue( const QString &value ){ m_value = value; }
+	void setValue( const QString &value );
 	QString getValue() const{ return m_value; }
 
 	bool isValue() const{ return m_isValue; }