void RenderableGadget::doRender( const Style *style ) const
{
if( IECoreGL::Selector::currentSelector() )
{
// our scene may contain shaders which don't work with
// the selector so we early out for now. we could override
// the base state with an appropriate selection shader and
// a name component matching the name for the gadget, but
// right now we have no need for that.
return;
}
if( m_scene )
{
m_scene->render( m_baseState.get() );
}
if( m_dragSelecting )
{
const ViewportGadget *viewportGadget = ancestor<ViewportGadget>();
ViewportGadget::RasterScope rasterScope( viewportGadget );
Box2f b;
b.extendBy( viewportGadget->gadgetToRasterSpace( m_dragStartPosition, this ) );
b.extendBy( viewportGadget->gadgetToRasterSpace( m_lastDragPosition, this ) );
style->renderSelectionBox( b );
}
}
void GraphGadget::updateDragSelection( bool dragEnd )
{
Box2f selectionBound;
selectionBound.extendBy( m_dragStartPosition );
selectionBound.extendBy( m_lastDragPosition );
for( NodeGadgetMap::const_iterator it = m_nodeGadgets.begin(), eIt = m_nodeGadgets.end(); it != eIt; ++it )
{
NodeGadget *nodeGadget = it->second.gadget;
const Box3f nodeBound3 = nodeGadget->transformedBound();
const Box2f nodeBound2( V2f( nodeBound3.min.x, nodeBound3.min.y ), V2f( nodeBound3.max.x, nodeBound3.max.y ) );
if( boxContains( selectionBound, nodeBound2 ) )
{
nodeGadget->setHighlighted( true );
if( dragEnd )
{
m_scriptNode->selection()->add( const_cast<Gaffer::Node *>( it->first ) );
}
}
else
{
nodeGadget->setHighlighted( m_scriptNode->selection()->contains( it->first ) );
}
}
}
void updateDragRectangle( const GafferUI::DragDropEvent &event, RectangleChangedReason reason )
{
const V2f p = eventPosition( event );
Box2f b = m_dragStartRectangle;
if( m_xDragEdge == -1 )
{
b.min.x = p.x;
}
else if( m_xDragEdge == 1 )
{
b.max.x = p.x;
}
if( m_yDragEdge == -1 )
{
b.min.y = p.y;
}
else if( m_yDragEdge == 1 )
{
b.max.y = p.y;
}
// fix max < min issues
Box2f c;
c.extendBy( b.min );
c.extendBy( b.max );
setRectangleInternal( c, reason );
}
ViewportGadget::SelectionScope::SelectionScope( const Imath::V3f &corner0InGadgetSpace, const Imath::V3f &corner1InGadgetSpace, const Gadget *gadget, std::vector<IECoreGL::HitRecord> &selection, IECoreGL::Selector::Mode mode )
: m_selection( selection )
{
const ViewportGadget *viewportGadget = gadget->ancestor<ViewportGadget>();
Box2f rasterRegion;
rasterRegion.extendBy( viewportGadget->gadgetToRasterSpace( corner0InGadgetSpace, gadget ) );
rasterRegion.extendBy( viewportGadget->gadgetToRasterSpace( corner1InGadgetSpace, gadget ) );
begin( viewportGadget, rasterRegion, gadget->fullTransform(), mode );
}
void GraphGadget::doRender( const Style *style ) const
{
glDisable( GL_DEPTH_TEST );
// render backdrops before anything else
/// \todo Perhaps we need a more general layering system as part
/// of the Gadget system, to allow Gadgets to choose their own layering,
/// and perhaps to also allow one gadget to draw into multiple layers.
for( ChildContainer::const_iterator it=children().begin(); it!=children().end(); it++ )
{
if( (*it)->isInstanceOf( (IECore::TypeId)BackdropNodeGadgetTypeId ) )
{
static_cast<const Gadget *>( it->get() )->render( style );
}
}
// then render connections so they go underneath the nodes
for( ChildContainer::const_iterator it=children().begin(); it!=children().end(); it++ )
{
ConnectionGadget *c = IECore::runTimeCast<ConnectionGadget>( it->get() );
if ( c && c != m_dragReconnectCandidate )
{
c->render( style );
}
}
// render the new drag connections if they exist
if ( m_dragReconnectCandidate )
{
if ( m_dragReconnectDstNodule )
{
const Nodule *srcNodule = m_dragReconnectCandidate->srcNodule();
const NodeGadget *srcNodeGadget = nodeGadget( srcNodule->plug()->node() );
const Imath::V3f srcP = srcNodule->fullTransform( this ).translation();
const Imath::V3f dstP = m_dragReconnectDstNodule->fullTransform( this ).translation();
const Imath::V3f dstTangent = nodeGadget( m_dragReconnectDstNodule->plug()->node() )->noduleTangent( m_dragReconnectDstNodule );
/// \todo: can there be a highlighted/dashed state?
style->renderConnection( srcP, srcNodeGadget->noduleTangent( srcNodule ), dstP, dstTangent, Style::HighlightedState );
}
if ( m_dragReconnectSrcNodule )
{
const Nodule *dstNodule = m_dragReconnectCandidate->dstNodule();
const NodeGadget *dstNodeGadget = nodeGadget( dstNodule->plug()->node() );
const Imath::V3f srcP = m_dragReconnectSrcNodule->fullTransform( this ).translation();
const Imath::V3f dstP = dstNodule->fullTransform( this ).translation();
const Imath::V3f srcTangent = nodeGadget( m_dragReconnectSrcNodule->plug()->node() )->noduleTangent( m_dragReconnectSrcNodule );
/// \todo: can there be a highlighted/dashed state?
style->renderConnection( srcP, srcTangent, dstP, dstNodeGadget->noduleTangent( dstNodule ), Style::HighlightedState );
}
}
// then render the rest on top
for( ChildContainer::const_iterator it=children().begin(); it!=children().end(); it++ )
{
if( !((*it)->isInstanceOf( ConnectionGadget::staticTypeId() )) && !((*it)->isInstanceOf( (IECore::TypeId)BackdropNodeGadgetTypeId )) )
{
static_cast<const Gadget *>( it->get() )->render( style );
}
}
// render drag select thing if needed
if( m_dragMode == Selecting )
{
const ViewportGadget *viewportGadget = ancestor<ViewportGadget>();
ViewportGadget::RasterScope rasterScope( viewportGadget );
Box2f b;
b.extendBy( viewportGadget->gadgetToRasterSpace( V3f( m_dragStartPosition.x, m_dragStartPosition.y, 0 ), this ) );
b.extendBy( viewportGadget->gadgetToRasterSpace( V3f( m_lastDragPosition.x, m_lastDragPosition.y, 0 ), this ) );
style->renderSelectionBox( b );
}
}
bool GraphGadget::dragEnd( GadgetPtr gadget, const DragDropEvent &event )
{
DragMode dragMode = m_dragMode;
m_dragMode = None;
Pointer::set( 0 );
if( !m_scriptNode )
{
return false;
}
V3f i;
if( !event.line.intersect( Plane3f( V3f( 0, 0, 1 ), 0 ), i ) )
{
return false;
}
if( dragMode == Moving )
{
if ( m_dragReconnectCandidate )
{
if ( m_dragReconnectDstNodule || m_dragReconnectSrcNodule )
{
Gaffer::Plug *srcPlug = m_dragReconnectCandidate->srcNodule()->plug();
Gaffer::Plug *dstPlug = m_dragReconnectCandidate->dstNodule()->plug();
Gaffer::UndoContext undoContext( m_scriptNode );
if ( m_dragReconnectDstNodule )
{
m_dragReconnectDstNodule->plug()->setInput( srcPlug );
dstPlug->setInput( 0 );
}
if ( m_dragReconnectSrcNodule )
{
dstPlug->setInput( m_dragReconnectSrcNodule->plug() );
}
}
}
m_dragReconnectCandidate = 0;
renderRequestSignal()( this );
}
else if( dragMode == Selecting )
{
Box2f selectionBound;
selectionBound.extendBy( m_dragStartPosition );
selectionBound.extendBy( m_lastDragPosition );
for( ChildContainer::const_iterator it=children().begin(); it!=children().end(); it++ )
{
NodeGadgetPtr nodeGadget = runTimeCast<NodeGadget>( *it );
if( nodeGadget )
{
Box3f nodeBound3 = nodeGadget->transformedBound();
Box2f nodeBound2( V2f( nodeBound3.min.x, nodeBound3.min.y ), V2f( nodeBound3.max.x, nodeBound3.max.y ) );
if( boxContains( selectionBound, nodeBound2 ) )
{
m_scriptNode->selection()->add( nodeGadget->node() );
}
}
}
renderRequestSignal()( this );
}
return true;
}