There are more than 1 slots available now.
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61b3f60e47
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7f178d6c86
5 changed files with 50 additions and 21 deletions
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@ -87,7 +87,12 @@ void ExpressionEditor::onDeleteSelection()
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ExpressionNode *node = dynamic_cast< ExpressionNode* >( item );
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if( node != NULL )
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{
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ExpressionLink *link = node->link();
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ExpressionLink *link = NULL;
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int c = node->slotCount();
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for( int i = 0; i < c; i++ )
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{
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link = node->link( i );
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if( link != NULL )
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{
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link->unlink();
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@ -95,6 +100,7 @@ void ExpressionEditor::onDeleteSelection()
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delete link;
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}
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}
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}
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m_scene->removeItem( item );
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delete item;
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@ -113,7 +119,7 @@ void ExpressionEditor::onLinkItems()
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ExpressionNode *from = static_cast< ExpressionNode* >( l[ 0 ] );
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ExpressionNode *to = static_cast< ExpressionNode* >( l[ 1 ] );
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if( ( from->link() != NULL ) || ( to->link() != NULL ) )
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if( ( from->link( 0 ) != NULL ) || ( to->link( 0 ) != NULL ) )
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{
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QMessageBox::information( this,
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tr( "Failed to link nodes" ),
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@ -122,7 +128,7 @@ void ExpressionEditor::onLinkItems()
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}
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ExpressionLink *link = new ExpressionLink();
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link->link( from, to );
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link->link( from, to, 0, 0 );
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m_scene->addItem( link );
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}
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@ -35,20 +35,23 @@ ExpressionLink::~ExpressionLink()
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unlink();
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}
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void ExpressionLink::link( ExpressionNode *from, ExpressionNode *to )
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void ExpressionLink::link( ExpressionNode *from, ExpressionNode *to, int fromSlot, int toSlot )
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{
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m_from = from;
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m_to = to;
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m_from->setLink( this );
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m_to->setLink( this );
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m_from->setLink( this, fromSlot );
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m_to->setLink( this, toSlot );
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m_fromSlot = fromSlot;
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m_toSlot = toSlot;
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nodeMoved();
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}
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void ExpressionLink::unlink()
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{
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m_from->setLink( NULL );
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m_to->setLink( NULL );
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m_from->setLink( NULL, m_fromSlot );
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m_to->setLink( NULL, m_toSlot );
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}
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void ExpressionLink::nodeMoved()
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@ -29,7 +29,7 @@ public:
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ExpressionLink( QGraphicsItem *parent = NULL );
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~ExpressionLink();
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void link( ExpressionNode *from, ExpressionNode *to );
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void link( ExpressionNode *from, ExpressionNode *to, int fromSlot, int toSlot );
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void unlink();
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void nodeMoved();
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@ -40,6 +40,8 @@ private:
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ExpressionNode *m_from;
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ExpressionNode *m_to;
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int m_fromSlot;
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int m_toSlot;
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};
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#endif
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@ -98,12 +98,13 @@ private:
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ExpressionNode::ExpressionNode( QGraphicsItem *parent ) :
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QGraphicsItem( parent )
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{
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m_link = NULL;
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m_w = 100;
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m_h = 100;
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createSlots();
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for( int i = 0; i < 4; i++ )
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m_links.push_back( NULL );
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}
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ExpressionNode::~ExpressionNode()
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@ -168,10 +169,26 @@ QPointF ExpressionNode::slotPos( int slot ) const
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return mp;
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}
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void ExpressionNode::setLink( ExpressionLink *link, int slot )
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{
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m_links[ slot ] = link;
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}
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ExpressionLink* ExpressionNode::link( int slot ) const
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{
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return m_links[ slot ];
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}
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void ExpressionNode::mouseMoveEvent( QGraphicsSceneMouseEvent *e )
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{
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if( m_link != NULL )
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m_link->nodeMoved();
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for( int i = 0; i < 4; i++ )
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{
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ExpressionLink *link = m_links[ i ];
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if( link == NULL )
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continue;
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link->nodeMoved();
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}
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QGraphicsItem::mouseMoveEvent( e );
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}
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@ -35,11 +35,13 @@ public:
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QRectF boundingRect() const;
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void paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget );
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void setLink( ExpressionLink *link ){ m_link = link; }
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ExpressionLink* link() const{ return m_link; }
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void setLink( ExpressionLink *link, int slot );
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ExpressionLink* link( int slot ) const;
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QPointF slotPos( int slot ) const;
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int slotCount() const{ return m_slots.count(); }
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protected:
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void mouseMoveEvent( QGraphicsSceneMouseEvent *e );
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@ -47,12 +49,11 @@ private:
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void createSlots();
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void paintSlots( QPainter *painter );
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ExpressionLink *m_link;
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qreal m_w;
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qreal m_h;
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QList< NodeSlot* > m_slots;
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QList< ExpressionLink* > m_links;
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};
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#endif
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