void mitk::LevelWindowManager::Update(const itk::EventObject&) // visible property of a image has changed
{
if (m_AutoTopMost)
{
SetAutoTopMostImage(true);
return;
}
mitk::DataStorage::SetOfObjects::ConstPointer all = this->GetRelevantNodes();
for (mitk::DataStorage::SetOfObjects::ConstIterator it = all->Begin();
it != all->End();
++it)
{
mitk::DataNode::Pointer node = it->Value();
if (node.IsNull())
continue;
node->SetBoolProperty( "imageForLevelWindow", false );
if (node->IsVisible(NULL) == false)
continue;
mitk::LevelWindowProperty::Pointer levelWindowProperty = dynamic_cast<mitk::LevelWindowProperty*>(node->GetProperty("levelwindow"));
if (levelWindowProperty.IsNull())
continue;
m_LevelWindowProperty = levelWindowProperty;
m_CurrentImage = dynamic_cast<mitk::Image*>(node->GetData());
node->SetBoolProperty( "imageForLevelWindow", true );
if (m_LevelWindowProperty.IsNull() && m_LevelWindowProperty.GetPointer() == levelWindowProperty) // we found our m_LevelWindowProperty
{
return;
}
}
Modified();
}
void mitk::LevelWindowManager::DataStorageRemovedNode( const mitk::DataNode* removedNode )
{
//first: check if deleted node is part of relevant nodes. If not, abort method because there is no need change anything.
if ((this->GetRelevantNodes()->size() == 0)) return;
bool removedNodeIsRelevant = false;
/* Iterator code: is crashing, don't know why... so using for loop
for (mitk::DataStorage::SetOfObjects::ConstIterator it = this->GetRelevantNodes()->Begin();
it != this->GetRelevantNodes()->End();
++it)
{if (it->Value() == removedNode) {removedNodeIsRelevant=true;}}*/
for (unsigned int i=0; i<this->GetRelevantNodes()->size(); i++)
{
if (this->GetRelevantNodes()->at(i) == removedNode) {removedNodeIsRelevant=true;}
}
if (!removedNodeIsRelevant) return;
//remember node which will be removed
m_NodeMarkedToDelete = removedNode;
//update observers
UpdateObservers();
/* search image than belongs to the property */
if (m_LevelWindowProperty.IsNull())
{
SetAutoTopMostImage(true, removedNode);
}
else
{
mitk::NodePredicateProperty::Pointer p2 = mitk::NodePredicateProperty::New("levelwindow", m_LevelWindowProperty);
mitk::DataNode* n = m_DataStorage->GetNode(p2);
if (n == NULL || m_AutoTopMost) // if node was deleted, change our behaviour to AutoTopMost, if AutoTopMost is true change level window to topmost node
{
SetAutoTopMostImage(true, removedNode);
}
}
//reset variable
m_NodeMarkedToDelete = NULL;
//check if everything is still ok
if ((m_PropObserverToNode.size() != m_PropObserverToNode2.size()) || (m_PropObserverToNode2.size() != (this->GetRelevantNodes()->size()-1)))
{mitkThrow() << "Wrong number of observers in Level Window Manager!";}
}
void mitk::LevelWindowManager::DataStorageAddedNode( const mitk::DataNode* )
{
//update observers with new data storage
UpdateObservers();
//Initialize LevelWindowsManager to new image
SetAutoTopMostImage(true);
//check if everything is still ok
if ((m_PropObserverToNode.size() != m_PropObserverToNode2.size()) || (m_PropObserverToNode2.size() != this->GetRelevantNodes()->size()))
{mitkThrow() << "Wrong number of observers in Level Window Manager!";}
}
void mitk::LevelWindowManager::Update(const itk::EventObject&) // visible property of a image has changed
{
if ( m_SettingImgForLvlWinProp )//no mutex, should still help
{
return;
}
if (m_AutoTopMost)
{
SetAutoTopMostImage(true);
return;
}
int maxVisibleLayer = itk::NumericTraits<int>::min();
mitk::DataNode::Pointer highestVisible = NULL;
std::vector< mitk::DataNode::Pointer > visProbNodes;
mitk::DataStorage::SetOfObjects::ConstPointer all = this->GetRelevantNodes();
for (mitk::DataStorage::SetOfObjects::ConstIterator it = all->Begin();
it != all->End();
++it)
{
mitk::DataNode::Pointer node = it->Value();
if ( node.IsNull() )
{
continue;
}
bool visible = node->IsVisible(NULL);
if ( node->IsVisible(NULL) )
{
int layer = -1;
node->GetIntProperty( "layer", layer );
if ( layer > maxVisibleLayer )
{
maxVisibleLayer = layer;
highestVisible = node;
}
}
bool prop = false;
node->GetBoolProperty( "imageForLevelWindow", prop );
if ( prop && visible )
{
visProbNodes.push_back( node );
}
}
int numVisProbNodes = visProbNodes.size();
if ( numVisProbNodes > 2 )
{
MITK_ERROR << "Error: not more than two visible nodes are expected to have the imageForLevelWindow property set at any point.";
}
else if ( numVisProbNodes == 2 )
{
for ( std::vector< mitk::DataNode::Pointer >::const_iterator it = visProbNodes.begin(); it != visProbNodes.end(); ++it )
{
mitk::LevelWindowProperty::Pointer newProp = dynamic_cast< mitk::LevelWindowProperty* >( (*it)->GetProperty( "levelwindow" ) );
if ( newProp != m_LevelWindowProperty )
{
this->SetLevelWindowProperty( newProp );
return;
}
}
}
else if (numVisProbNodes == 1 )
{
mitk::LevelWindowProperty::Pointer newProp = dynamic_cast< mitk::LevelWindowProperty* >( visProbNodes[0]->GetProperty( "levelwindow" ) );
if ( newProp != m_LevelWindowProperty )
{
this->SetLevelWindowProperty( newProp );
return;
}
}
else if ( highestVisible )
{
mitk::LevelWindowProperty::Pointer lvlProp = dynamic_cast< mitk::LevelWindowProperty* >( highestVisible->GetProperty( "levelwindow" ) );
this->SetLevelWindowProperty( lvlProp );
}
else
{
Modified();
}
}