Signals | Public Member Functions | Protected Slots | Protected Member Functions | Protected Attributes

QmitkPointListViewWidget Class Reference

GUI widget for handling mitk::PointSet. More...

#include <QmitkPointListViewWidget.h>

Collaboration diagram for QmitkPointListViewWidget:
Collaboration graph
[legend]

List of all members.

Signals

void PointSelectionChanged ()
 this signal is emmitted, if the selection of a point in the pointset is changed

Public Member Functions

 QmitkPointListViewWidget (QWidget *parent=0)
 ~QmitkPointListViewWidget ()
void SetPointSet (mitk::PointSet *pointSet)
 assign a point set for observation
const mitk::PointSet * GetPointSet () const
 which point set to work on
void SetMultiWidget (QmitkStdMultiWidget *multiWidget)
 assign a QmitkStdMultiWidget for updating render window crosshair
QmitkStdMultiWidget * GetMultiWidget () const
 return the QmitkStdMultiWidget that is used for updating render window crosshair
void SetTimeStep (int t)
 which time step to display/model
int GetTimeStep () const
 which time step to display/model
void OnPointSetChanged (const itk::Object *)
 observer for point set "modified" events
void OnPointSetDeleted (const itk::Object *)
 observer for point set "delete" events

Protected Slots

void OnItemDoubleClicked (QListWidgetItem *item)
void OnCurrentRowChanged (int)
 called when the selection of the view widget changes

Protected Member Functions

void keyPressEvent (QKeyEvent *e)
 react to F2, F3 and DEL keys
void MoveSelectedPointUp ()
void MoveSelectedPointDown ()
void RemoveSelectedPoint ()
void Update (bool currentRowChanged=false)

Protected Attributes

mitk::WeakPointer< mitk::PointSet > m_PointSet
int m_TimeStep
bool m_SelfCall
QmitkStdMultiWidget * m_MultiWidget
 used to position the planes on a selected point

Detailed Description

GUI widget for handling mitk::PointSet.

Displays all the points in a mitk::PointSet graphically. Reacts automatically to changes in the PointSet's selection status. Updates PointSet's selection status when this list's selection changes.

If a QmitkStdMultiWidget is assigned via SetMultiWidget(), the crosshair of the QmitkStdMultiWidget is moved to the currently selected point.

Definition at line 41 of file QmitkPointListViewWidget.h.

Constructor & Destructor Documentation

QmitkPointListViewWidget::QmitkPointListViewWidget ( QWidget *  parent = 0 )

Definition at line 30 of file QmitkPointListViewWidget.cpp.

References OnCurrentRowChanged(), and OnItemDoubleClicked().

:QListWidget( parent ),
 m_TimeStep( 0 ),
 m_SelfCall( false ),
 m_MultiWidget( NULL)
{  
  QListWidget::setAlternatingRowColors( true );
  // logic

  QListWidget::setSelectionBehavior( QAbstractItemView::SelectRows );
  QListWidget::setSelectionMode( QAbstractItemView::SingleSelection );
  
  connect( this, SIGNAL(itemDoubleClicked ( QListWidgetItem * )),
           this, SLOT(OnItemDoubleClicked( QListWidgetItem *)) );

  connect( this, SIGNAL( currentRowChanged( int ) ),
           this, SLOT( OnCurrentRowChanged( int ) ) );
  
}
QmitkPointListViewWidget::~QmitkPointListViewWidget (  )

Definition at line 50 of file QmitkPointListViewWidget.cpp.

References SetPointSet().

{
  this->SetPointSet(0); // remove listener
}

Member Function Documentation

QmitkStdMultiWidget * QmitkPointListViewWidget::GetMultiWidget (  ) const

return the QmitkStdMultiWidget that is used for updating render window crosshair

Definition at line 104 of file QmitkPointListViewWidget.cpp.

References m_MultiWidget.

{
  return m_MultiWidget;
}
const mitk::PointSet * QmitkPointListViewWidget::GetPointSet (  ) const

which point set to work on

Definition at line 82 of file QmitkPointListViewWidget.cpp.

References m_PointSet.

{
  return m_PointSet;
}
int QmitkPointListViewWidget::GetTimeStep (  ) const

which time step to display/model

Definition at line 93 of file QmitkPointListViewWidget.cpp.

References m_TimeStep.

{
  return m_TimeStep;
}
void QmitkPointListViewWidget::keyPressEvent ( QKeyEvent *  e ) [protected]

react to F2, F3 and DEL keys

Definition at line 203 of file QmitkPointListViewWidget.cpp.

References mitk::WeakPointer< TObjectType >::IsNull(), mitk::Key_Delete, mitk::Key_F2, mitk::Key_F3, m_PointSet, MoveSelectedPointDown(), MoveSelectedPointUp(), and RemoveSelectedPoint().

{
  if (m_PointSet.IsNull())
    return;

  int key = e->key();
  switch (key)
  {
    case Qt::Key_F2:
     this->MoveSelectedPointUp();
     break;
    case Qt::Key_F3:
      this->MoveSelectedPointDown();
      break;
    case Qt::Key_Delete:
      this->RemoveSelectedPoint();
      break;
    default:
    break;
  }
}
void QmitkPointListViewWidget::MoveSelectedPointDown (  ) [protected]

Definition at line 238 of file QmitkPointListViewWidget.cpp.

References mitk::RenderingManager::GetInstance(), m_PointSet, m_TimeStep, and mitk::OpMOVEPOINTDOWN.

Referenced by keyPressEvent().

{
  if (m_PointSet == NULL)
    return;

  mitk::PointSet::PointIdentifier selectedID; 
  selectedID = m_PointSet->SearchSelectedPoint(m_TimeStep);
  mitk::PointOperation* doOp = new mitk::PointOperation(mitk::OpMOVEPOINTDOWN, m_PointSet->GetPoint(selectedID, m_TimeStep), selectedID, true);
  m_PointSet->ExecuteOperation(doOp);
  mitk::RenderingManager::GetInstance()->RequestUpdateAll(); // Workaround for update problem in Pointset/Mapper
}
void QmitkPointListViewWidget::MoveSelectedPointUp (  ) [protected]

Definition at line 225 of file QmitkPointListViewWidget.cpp.

References mitk::RenderingManager::GetInstance(), m_PointSet, m_TimeStep, and mitk::OpMOVEPOINTUP.

Referenced by keyPressEvent().

{
  if (m_PointSet == NULL)
    return;
  
  mitk::PointSet::PointIdentifier selectedID;   
  selectedID = m_PointSet->SearchSelectedPoint(m_TimeStep);
  mitk::PointOperation* doOp = new mitk::PointOperation(mitk::OpMOVEPOINTUP, m_PointSet->GetPoint(selectedID, m_TimeStep), selectedID, true);
  m_PointSet->ExecuteOperation(doOp);
  mitk::RenderingManager::GetInstance()->RequestUpdateAll(); // Workaround for update problem in Pointset/Mapper
}
void QmitkPointListViewWidget::OnCurrentRowChanged ( int   ) [protected, slot]

called when the selection of the view widget changes

Definition at line 128 of file QmitkPointListViewWidget.cpp.

References Update().

Referenced by QmitkPointListViewWidget().

{
  this->Update(true);
}
void QmitkPointListViewWidget::OnItemDoubleClicked ( QListWidgetItem *  item ) [protected, slot]

Filtering double click event for editing point coordinates via a dialog

Definition at line 121 of file QmitkPointListViewWidget.cpp.

References m_PointSet, m_TimeStep, and QmitkEditPointDialog::SetPoint().

Referenced by QmitkPointListViewWidget().

{
  QmitkEditPointDialog _EditPointDialog(this);
  _EditPointDialog.SetPoint(m_PointSet, this->row(item), m_TimeStep);
  _EditPointDialog.exec();
}
void QmitkPointListViewWidget::OnPointSetChanged ( const itk::Object *   )

observer for point set "modified" events

Definition at line 109 of file QmitkPointListViewWidget.cpp.

References m_SelfCall, and Update().

Referenced by SetPointSet().

{
  if(!m_SelfCall)
    this->Update();
}
void QmitkPointListViewWidget::OnPointSetDeleted ( const itk::Object *   )

observer for point set "delete" events

Definition at line 115 of file QmitkPointListViewWidget.cpp.

References SetPointSet(), and Update().

Referenced by SetPointSet().

{
  this->SetPointSet(0);
  this->Update();
}
void QmitkPointListViewWidget::PointSelectionChanged (  ) [signal]

this signal is emmitted, if the selection of a point in the pointset is changed

void QmitkPointListViewWidget::RemoveSelectedPoint (  ) [protected]

Definition at line 251 of file QmitkPointListViewWidget.cpp.

References mitk::RenderingManager::GetInstance(), m_PointSet, m_TimeStep, and mitk::OpREMOVE.

Referenced by keyPressEvent().

{
  if (m_PointSet == NULL)
    return;

  mitk::PointSet::PointIdentifier selectedID; 
  selectedID = m_PointSet->SearchSelectedPoint(m_TimeStep);
  mitk::PointOperation* doOp = new mitk::PointOperation(mitk::OpREMOVE, m_PointSet->GetPoint(selectedID, m_TimeStep), selectedID, true);
  m_PointSet->ExecuteOperation(doOp);
  mitk::RenderingManager::GetInstance()->RequestUpdateAll(); // Workaround for update problem in Pointset/Mapper
}
void QmitkPointListViewWidget::SetMultiWidget ( QmitkStdMultiWidget *  multiWidget )

assign a QmitkStdMultiWidget for updating render window crosshair

Definition at line 98 of file QmitkPointListViewWidget.cpp.

References m_MultiWidget.

{
  m_MultiWidget = multiWidget;
}
void QmitkPointListViewWidget::SetPointSet ( mitk::PointSet *  pointSet )

assign a point set for observation

Definition at line 55 of file QmitkPointListViewWidget.cpp.

References mitk::WeakPointer< TObjectType >::IsNotNull(), m_PointSet, mitk::WeakPointer< TObjectType >::ObjectDelete, mitk::WeakPointer< TObjectType >::ObjectModified, OnPointSetChanged(), OnPointSetDeleted(), and Update().

Referenced by OnPointSetDeleted(), and ~QmitkPointListViewWidget().

{
  if(m_PointSet.IsNotNull())
  {
      m_PointSet.ObjectModified.RemoveListener
        (mitk::MessageDelegate1<QmitkPointListViewWidget
          , const itk::Object*>( this, &QmitkPointListViewWidget::OnPointSetChanged ));
      m_PointSet.ObjectDelete.RemoveListener
        (mitk::MessageDelegate1<QmitkPointListViewWidget
          , const itk::Object*>( this, &QmitkPointListViewWidget::OnPointSetDeleted ));
  }

  m_PointSet = pointSet;

  if(m_PointSet.IsNotNull())
  {
      m_PointSet.ObjectModified.AddListener
        (mitk::MessageDelegate1<QmitkPointListViewWidget
          , const itk::Object*>( this, &QmitkPointListViewWidget::OnPointSetChanged ));
      m_PointSet.ObjectDelete.AddListener
        (mitk::MessageDelegate1<QmitkPointListViewWidget
          , const itk::Object*>( this, &QmitkPointListViewWidget::OnPointSetDeleted ));
  }

  this->Update();
}
void QmitkPointListViewWidget::SetTimeStep ( int  t )

which time step to display/model

Definition at line 87 of file QmitkPointListViewWidget.cpp.

References m_TimeStep, QuadProgPP::t(), and Update().

{
  m_TimeStep = t;
  this->Update();
}
void QmitkPointListViewWidget::Update ( bool  currentRowChanged = false ) [protected]

use logging as soon as available

Definition at line 263 of file QmitkPointListViewWidget.cpp.

References int(), mitk::WeakPointer< TObjectType >::IsNull(), m_PointSet, m_SelfCall, and m_TimeStep.

Referenced by OnCurrentRowChanged(), OnPointSetChanged(), OnPointSetDeleted(), SetPointSet(), and SetTimeStep().

{
  if(m_SelfCall)
    return;

  if(m_PointSet.IsNull())
  {
    this->clear();
    return;
  }

  m_SelfCall = true;
  QString text;
  int i = 0;
  
  mitk::PointSet::DataType::Pointer pointset = m_PointSet->GetPointSet(m_TimeStep);
  for (mitk::PointSet::PointsContainer::Iterator it = pointset->GetPoints()->Begin(); it != pointset->GetPoints()->End(); ++it)
  {

    text = QString("%0: (%1, %2, %3)")
      .arg( i, 3)
      .arg( it.Value().GetElement(0), 0, 'f', 3 )
      .arg( it.Value().GetElement(1), 0, 'f', 3 )
      .arg( it.Value().GetElement(2), 0, 'f', 3 );

    if(i==this->count())
      this->addItem(text); // insert text
    else
      this->item(i)->setText(text); // update text
    
    if(currentRowChanged)
    {
      if(i == this->currentRow())
        m_PointSet->SetSelectInfo(this->currentRow(), true, m_TimeStep);
      else
        m_PointSet->SetSelectInfo(it->Index(), false, m_TimeStep); // select nothing now
    }
    ++i;
  }

  // remove unnecessary listwidgetitems
  while (m_PointSet->GetPointSet(m_TimeStep)->GetPoints()->Size() < (unsigned int)this->count() )
  {
    QListWidgetItem * item = this->takeItem(this->count()-1);
    delete item;
  }

  // update selection in pointset or in the list widget
  if(!currentRowChanged)
  {
    if ( m_PointSet->GetNumberOfSelected( m_TimeStep ) > 1 )
    {
      std::cerr << "Point set has multiple selected points. This view is not designed for more than one selected point." << std::endl;
    }

    int selectedIndex = m_PointSet->SearchSelectedPoint( m_TimeStep );
    if (selectedIndex != -1) // no selected point is found
    {
      this->setCurrentRow ( selectedIndex );
    }
  }
  m_SelfCall = false;
}

Member Data Documentation

QmitkStdMultiWidget* QmitkPointListViewWidget::m_MultiWidget [protected]

used to position the planes on a selected point

Definition at line 97 of file QmitkPointListViewWidget.h.

Referenced by GetMultiWidget(), and SetMultiWidget().

mitk::WeakPointer<mitk::PointSet> QmitkPointListViewWidget::m_PointSet [protected]

Definition at line 91 of file QmitkPointListViewWidget.h.

Referenced by GetPointSet(), keyPressEvent(), MoveSelectedPointDown(), MoveSelectedPointUp(), OnItemDoubleClicked(), RemoveSelectedPoint(), SetPointSet(), and Update().

bool QmitkPointListViewWidget::m_SelfCall [protected]

Definition at line 94 of file QmitkPointListViewWidget.h.

Referenced by OnPointSetChanged(), and Update().

int QmitkPointListViewWidget::m_TimeStep [protected]

Definition at line 92 of file QmitkPointListViewWidget.h.

Referenced by GetTimeStep(), MoveSelectedPointDown(), MoveSelectedPointUp(), OnItemDoubleClicked(), RemoveSelectedPoint(), SetTimeStep(), and Update().

The documentation for this class was generated from the following files:
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Generated on Tue Oct 19 2010 16:19:53 for mitk by  doxygen 1.7.2