Instead of mouse move event, use the itemChange handler to move the links.

This commit is contained in:
dfighter1985 2014-09-17 16:17:41 +02:00
parent fee6b431a0
commit 7b5bed2442
2 changed files with 14 additions and 5 deletions

View file

@ -101,7 +101,7 @@ private:
ExpressionNode::ExpressionNode( const QString &name, int slotCount, QGraphicsItem *parent ) : ExpressionNode::ExpressionNode( const QString &name, int slotCount, QGraphicsItem *parent ) :
QGraphicsItem( parent ) QGraphicsItem( parent )
{ {
setFlags( QGraphicsItem::ItemIsSelectable | QGraphicsItem::ItemIsMovable ); setFlags( QGraphicsItem::ItemIsSelectable | QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemSendsScenePositionChanges );
m_w = 100; m_w = 100;
m_h = 100; m_h = 100;
@ -323,7 +323,17 @@ QString ExpressionNode::build() const
return result; return result;
} }
void ExpressionNode::mouseMoveEvent( QGraphicsSceneMouseEvent *e ) QVariant ExpressionNode::itemChange( GraphicsItemChange change, const QVariant &value )
{
if( change == ItemScenePositionHasChanged )
{
onNodeMove();
}
return QGraphicsItem::itemChange( change, value );
}
void ExpressionNode::onNodeMove()
{ {
for( int i = 0; i < m_links.count(); i++ ) for( int i = 0; i < m_links.count(); i++ )
{ {
@ -333,8 +343,6 @@ void ExpressionNode::mouseMoveEvent( QGraphicsSceneMouseEvent *e )
link->nodeMoved(); link->nodeMoved();
} }
QGraphicsItem::mouseMoveEvent( e );
} }
void ExpressionNode::createSlots( int count) void ExpressionNode::createSlots( int count)

View file

@ -68,9 +68,10 @@ public:
QString build() const; QString build() const;
protected: protected:
void mouseMoveEvent( QGraphicsSceneMouseEvent *e ); QVariant itemChange( GraphicsItemChange change, const QVariant &value );
private: private:
void onNodeMove();
void createSlots( int count = 3 ); void createSlots( int count = 3 );
void paintSlots( QPainter *painter ); void paintSlots( QPainter *painter );