Method PositionColorLegend

Views/Infovis/vtkDendrogramItem.cxx:1210–1248

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//------------------------------------------------------------------------------
void vtkDendrogramItem::PositionColorLegend()
{
  // bail out early if we don't have meaningful bounds yet.
  if (this->MinX > this->MaxX || this->MinY > this->MaxY)
  {
    return;
  }

  int orientation = this->GetOrientation();
  switch (orientation)
  {
    case vtkDendrogramItem::DOWN_TO_UP:
    case vtkDendrogramItem::UP_TO_DOWN:
      this->ColorLegend->SetHorizontalAlignment(vtkChartLegend::RIGHT);
      this->ColorLegend->SetVerticalAlignment(vtkChartLegend::CENTER);
      this->ColorLegend->SetOrientation(vtkColorLegend::VERTICAL);
      this->ColorLegend->SetPoint(
        this->MinX - this->LeafSpacing, this->MinY + (this->MaxY - this->MinY) / 2.0);
      this->ColorLegend->SetTextureSize(
        this->ColorLegend->GetSymbolWidth(), this->MaxY - this->MinY);
      break;

    case vtkDendrogramItem::RIGHT_TO_LEFT:
    case vtkDendrogramItem::LEFT_TO_RIGHT:
    default:
      this->ColorLegend->SetHorizontalAlignment(vtkChartLegend::CENTER);
      this->ColorLegend->SetVerticalAlignment(vtkChartLegend::TOP);
      this->ColorLegend->SetOrientation(vtkColorLegend::HORIZONTAL);
      this->ColorLegend->SetPoint(
        this->MinX + (this->MaxX - this->MinX) / 2.0, this->MinY - this->LeafSpacing);
      this->ColorLegend->SetTextureSize(
        this->MaxX - this->MinX, this->ColorLegend->GetSymbolWidth());
      break;
  }
  this->ColorLegend->Update();
  this->ColorLegend->SetVisible(true);
  this->Scene->SetDirty(true);
  this->LegendPositionSet = true;
}

//------------------------------------------------------------------------------
void vtkDendrogramItem::SetOrientation(int orientation)