bool CurveEditTool::MouseDown( const MouseButtonInput& e )
{
bool success = true;
if ( GetEditMode() == CurveEditModes::Modify )
{
success = m_ControlPointManipulator->MouseDown( e );
}
else
{
Curve* curve = NULL;
{
FrustumLinePickVisitor pick (m_Scene->GetViewport()->GetCamera(), e.GetPosition().x, e.GetPosition().y);
m_Scene->Pick( &pick );
V_PickHitSmartPtr sorted;
PickHit::Sort(m_Scene->GetViewport()->GetCamera(), pick.GetHits(), sorted, PickSortTypes::Intersection);
for ( V_PickHitSmartPtr::const_iterator itr = sorted.begin(), end = sorted.end(); itr != end; ++itr )
{
if ( curve = Reflect::SafeCast<Curve>( (*itr)->GetHitObject() ) )
{
break;
}
}
}
if ( !curve || !m_Scene->IsEditable() )
{
return false;
}
LinePickVisitor pick (m_Scene->GetViewport()->GetCamera(), e.GetPosition().x, e.GetPosition().y);
switch ( GetEditMode() )
{
case CurveEditModes::Insert:
{
std::pair<uint32_t, uint32_t> points;
if ( !curve->ClosestControlPoints( &pick, points ) )
{
return false;
}
CurveControlPoint* p0 = curve->GetControlPointByIndex( points.first );
CurveControlPoint* p1 = curve->GetControlPointByIndex( points.second );
Vector3 a( p0->GetPosition() );
Vector3 b( p1->GetPosition() );
Vector3 p;
if ( curve->GetCurveType() == CurveType::Linear )
{
float mu;
if ( !pick.GetPickSpaceLine().IntersectsSegment( a, b, -1.0f, &mu ) )
{
return false;
}
p = a * ( 1.0f - mu ) + b * mu;
}
else
{
p = ( a + b ) * 0.5f;
}
uint32_t index = points.first > points.second ? points.first : points.second;
CurveControlPointPtr point = new CurveControlPoint();
point->SetOwner( curve->GetOwner() );
point->Initialize();
curve->GetOwner()->Push( curve->InsertControlPointAtIndex( index, point ) );
break;
}
case CurveEditModes::Remove:
{
int32_t index = curve->ClosestControlPoint( &pick );
if ( index < 0 )
{
return false;
}
curve->GetOwner()->Push( curve->RemoveControlPointAtIndex( index ) );
break;
}
}
curve->Dirty();
m_Scene->Execute( false );
}
return success || Base::MouseDown( e );
}
void CurveEditTool::KeyPress( const KeyboardInput& e )
{
if ( !m_Scene->IsEditable() )
{
return;
}
int32_t keyCode = e.GetKeyCode();
if ( keyCode == KeyCodes::Left || keyCode == KeyCodes::Up || keyCode == KeyCodes::Right || keyCode == KeyCodes::Down )
{
OS_SceneNodeDumbPtr selection = m_Scene->GetSelection().GetItems();
if ( selection.Empty() )
{
return;
}
CurveControlPoint* point = Reflect::SafeCast<CurveControlPoint>( selection.Front() );
if ( !point )
{
return;
}
Curve* curve = Reflect::SafeCast<Curve>( point->GetParent() );
if ( !curve )
{
return;
}
int32_t index = curve->GetIndexForControlPoint( point );
if ( index == -1 )
{
return;
}
uint32_t countControlPoints = curve->GetNumberControlPoints();
if ( keyCode == KeyCodes::Left || keyCode == KeyCodes::Down )
{
index--;
index += countControlPoints;
index %= countControlPoints;
}
else if ( keyCode == KeyCodes::Right || keyCode == KeyCodes::Up )
{
index++;
index %= countControlPoints;
}
point = curve->GetControlPointByIndex( index );
selection.Clear();
selection.Append( point );
m_Scene->GetSelection().SetItems( selection );
}
Base::KeyPress( e );
}