FReply SInlineEditableTextBlock::OnMouseButtonDown( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
if( !MouseEvent.IsMouseButtonDown(EKeys::LeftMouseButton) || MouseEvent.IsControlDown() || MouseEvent.IsShiftDown())
{
return FReply::Unhandled();
}
if(IsSelected.IsBound())
{
if(IsSelected.Execute() && !bIsReadOnly.Get() && !ActiveTimerHandle.IsValid())
{
RegisterActiveTimer(0.5f, FWidgetActiveTimerDelegate::CreateSP(this, &SInlineEditableTextBlock::TriggerEditMode));
}
}
else
{
// The widget is not managed by another widget, so handle the mouse input and enter edit mode if ready.
if(HasKeyboardFocus())
{
EnterEditingMode();
}
return FReply::Handled();
}
// Do not handle the mouse input, this will allow for drag and dropping events to trigger.
return FReply::Unhandled();
}
FReply SAnimationOutlinerTreeNode::OnMouseButtonDown( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
if( MouseEvent.GetEffectingButton() == EKeys::LeftMouseButton && DisplayNode->IsSelectable() )
{
bool bSelected = DisplayNode->IsSelected();
if( MouseEvent.IsControlDown() )
{
const bool bDeselectOtherNodes = false;
// Select the node if we were clicked on
DisplayNode->SetSelectionState( !bSelected, bDeselectOtherNodes );
}
else
{
const bool bDeselectOtherNodes = true;
// Select the node if we were clicked on
DisplayNode->SetSelectionState( true, bDeselectOtherNodes );
}
OnSelectionChanged.ExecuteIfBound( DisplayNode );
return FReply::Handled();
}
else if( MouseEvent.GetEffectingButton() == EKeys::RightMouseButton )
{
return FReply::Handled().CaptureMouse(SharedThis(this));
}
return FReply::Unhandled();
}
FReply SSequencerSectionAreaView::OnMouseButtonDown( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
// Clear selected sections
if( !MouseEvent.IsControlDown() )
{
GetSequencer().ClearSectionSelection();
}
return FReply::Handled();
}
void SSection::HandleSectionSelection( const FPointerEvent& MouseEvent )
{
if( !MouseEvent.IsControlDown() )
{
GetSequencer().GetSelection().EmptySelectedSections();
}
// handle selecting sections
UMovieSceneSection* Section = SectionInterface->GetSectionObject();
GetSequencer().GetSelection().AddToSelection(Section);
}
void SSection::HandleKeySelection( const FSelectedKey& Key, const FPointerEvent& MouseEvent, bool bSelectDueToDrag )
{
if( Key.IsValid() )
{
// Clear previous key selection if:
// we are selecting due to drag and the key being dragged is not selected or control is not down
bool bShouldClearSelectionDueToDrag = bSelectDueToDrag ? !GetSequencer().GetSelection().IsSelected( Key ) : true;
// Keep key selection if right clicking to bring up a menu and the current key is selected
bool bKeepKeySelection = MouseEvent.GetEffectingButton() == EKeys::RightMouseButton && GetSequencer().GetSelection().IsSelected( Key );
if( (!MouseEvent.IsControlDown() && bShouldClearSelectionDueToDrag) && !bKeepKeySelection )
{
GetSequencer().GetSelection().EmptySelectedKeys();
}
GetSequencer().GetSelection().AddToSelection( Key );
}
}
FReply SFlipbookTimeline::OnMouseWheel(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
{
if (MouseEvent.IsControlDown())
{
const float DirectionScale = 0.08f;
const float MinFrameSize = 16.0f;
const float Direction = MouseEvent.GetWheelDelta();
const float NewUnitsPerFrame = FMath::Max(MinFrameSize, SlateUnitsPerFrame * (1.0f + Direction * DirectionScale));
SlateUnitsPerFrame = NewUnitsPerFrame;
CheckForRebuild(/*bRebuildAll=*/ true);
return FReply::Handled();
}
else
{
return FReply::Unhandled();
}
}
FReply FSequencerTimeSliderController::OnMouseWheel( SWidget& WidgetOwner, const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
TOptional<TRange<float>> NewTargetRange;
float MouseFractionX = MyGeometry.AbsoluteToLocal(MouseEvent.GetScreenSpacePosition()).X / MyGeometry.GetLocalSize().X;
if ( TimeSliderArgs.AllowZoom && MouseEvent.IsControlDown() )
{
const float ZoomDelta = -0.2f * MouseEvent.GetWheelDelta();
if (ZoomByDelta(ZoomDelta, MouseFractionX))
{
return FReply::Handled();
}
}
else if (MouseEvent.IsShiftDown())
{
PanByDelta(-MouseEvent.GetWheelDelta());
return FReply::Handled();
}
return FReply::Unhandled();
}
virtual FReply OnMouseButtonUp(const FGeometry& InMyGeometry, const FPointerEvent& InMouseEvent) override
{
if (!InMouseEvent.IsControlDown())
{
return SCheckBox::OnMouseButtonUp(InMyGeometry, InMouseEvent);
}
if (InMouseEvent.GetEffectingButton() == EKeys::LeftMouseButton)
{
bIsPressed = false;
if (IsHovered() && HasMouseCapture())
{
if (OnLayerCtrlClicked.IsBound())
{
return OnLayerCtrlClicked.Execute();
}
}
}
return FReply::Handled().ReleaseMouseCapture();
}
FReply STableViewBase::OnMouseWheel( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
if( !MouseEvent.IsControlDown() )
{
// Make sure scroll velocity is cleared so it doesn't fight with the mouse wheel input
this->InertialScrollManager.ClearScrollVelocity();
const float AmountScrolledInItems = this->ScrollBy( MyGeometry, -MouseEvent.GetWheelDelta()*WheelScrollAmount, EAllowOverscroll::No );
switch ( ConsumeMouseWheel )
{
case EConsumeMouseWheel::Always:
return FReply::Handled();
case EConsumeMouseWheel::WhenScrollingPossible: //default behavior
default:
if ( FMath::Abs( AmountScrolledInItems ) > 0.0f )
{
return FReply::Handled();
}
}
}
return FReply::Unhandled();
}
FReply SGraphPin::OnMouseMove( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
bIsMovingLinks = MouseEvent.IsControlDown() && (GraphPinObj->LinkedTo.Num() > 0);
return FReply::Unhandled();
}
FReply SGraphPin::OnPinMouseDown( const FGeometry& SenderGeometry, const FPointerEvent& MouseEvent )
{
bIsMovingLinks = false;
if (MouseEvent.GetEffectingButton() == EKeys::LeftMouseButton)
{
if (!GraphPinObj->bNotConnectable && IsEditable.Get())
{
if (MouseEvent.IsAltDown())
{
// Alt-Left clicking will break all existing connections to a pin
const UEdGraphSchema* Schema = GraphPinObj->GetSchema();
Schema->BreakPinLinks(*GraphPinObj, true);
return FReply::Handled();
}
auto OwnerNodePinned = OwnerNodePtr.Pin();
if (MouseEvent.IsControlDown() && (GraphPinObj->LinkedTo.Num() > 0))
{
// Get a reference to the owning panel widget
check(OwnerNodePinned.IsValid());
TSharedPtr<SGraphPanel> OwnerPanelPtr = OwnerNodePinned->GetOwnerPanel();
check(OwnerPanelPtr.IsValid());
// Obtain the set of all pins within the panel
TSet<TSharedRef<SWidget> > AllPins;
OwnerPanelPtr->GetAllPins(AllPins);
// Construct a UEdGraphPin->SGraphPin mapping for the full pin set
TMap< UEdGraphPin*, TSharedRef<SGraphPin> > PinToPinWidgetMap;
for( TSet< TSharedRef<SWidget> >::TIterator ConnectorIt(AllPins); ConnectorIt; ++ConnectorIt )
{
const TSharedRef<SWidget>& SomePinWidget = *ConnectorIt;
const SGraphPin& PinWidget = static_cast<const SGraphPin&>(SomePinWidget.Get());
PinToPinWidgetMap.Add(PinWidget.GetPinObj(), StaticCastSharedRef<SGraphPin>(SomePinWidget));
}
// Define a local struct to temporarily store lookup information for pins that we are currently linked to
struct LinkedToPinInfo
{
// Pin name string
FString PinName;
// A weak reference to the node object that owns the pin
TWeakObjectPtr<UEdGraphNode> OwnerNodePtr;
};
// Build a lookup table containing information about the set of pins that we're currently linked to
TArray<LinkedToPinInfo> LinkedToPinInfoArray;
for( TArray<UEdGraphPin*>::TIterator LinkArrayIter(GetPinObj()->LinkedTo); LinkArrayIter; ++LinkArrayIter )
{
if (auto PinWidget = PinToPinWidgetMap.Find(*LinkArrayIter))
{
check((*PinWidget)->OwnerNodePtr.IsValid());
LinkedToPinInfo PinInfo;
PinInfo.PinName = (*PinWidget)->GetPinObj()->PinName;
PinInfo.OwnerNodePtr = (*PinWidget)->OwnerNodePtr.Pin()->GetNodeObj();
LinkedToPinInfoArray.Add(PinInfo);
}
}
// Control-Left clicking will break all existing connections to a pin
// Note that for some nodes, this can cause reconstruction. In that case, pins we had previously linked to may now be destroyed.
const UEdGraphSchema* Schema = GraphPinObj->GetSchema();
Schema->BreakPinLinks(*GraphPinObj, true);
// Check to see if the panel has been invalidated by a graph change notification
if (!OwnerPanelPtr->Contains(OwnerNodePinned->GetNodeObj()))
{
// Force the panel to update. This will cause node & pin widgets to be reinstanced to match any reconstructed node/pin object references.
OwnerPanelPtr->Update();
// Obtain the full set of pins again after the update
AllPins.Empty(AllPins.Num());
OwnerPanelPtr->GetAllPins(AllPins);
// Rebuild the UEdGraphPin->SGraphPin mapping for the full pin set
PinToPinWidgetMap.Empty(PinToPinWidgetMap.Num());
for( TSet< TSharedRef<SWidget> >::TIterator ConnectorIt(AllPins); ConnectorIt; ++ConnectorIt )
{
const TSharedRef<SWidget>& SomePinWidget = *ConnectorIt;
const SGraphPin& PinWidget = static_cast<const SGraphPin&>(SomePinWidget.Get());
PinToPinWidgetMap.Add(PinWidget.GetPinObj(), StaticCastSharedRef<SGraphPin>(SomePinWidget));
}
}
// Now iterate over our lookup table to find the instances of pin widgets that we had previously linked to
TArray<TSharedRef<SGraphPin>> PinArray;
for(auto LinkedToPinInfoIter = LinkedToPinInfoArray.CreateConstIterator(); LinkedToPinInfoIter; ++LinkedToPinInfoIter)
{
LinkedToPinInfo PinInfo = *LinkedToPinInfoIter;
UEdGraphNode* OwnerNodeObj = PinInfo.OwnerNodePtr.Get();
if(OwnerNodeObj != NULL)
{
for(auto PinIter = PinInfo.OwnerNodePtr.Get()->Pins.CreateConstIterator(); PinIter; ++PinIter)
{
UEdGraphPin* Pin = *PinIter;
if(Pin->PinName == PinInfo.PinName)
{
if (auto pWidget = PinToPinWidgetMap.Find(Pin))
{
PinArray.Add(*pWidget);
}
}
}
}
}
if(PinArray.Num() > 0)
{
bIsMovingLinks = true;
return FReply::Handled().BeginDragDrop(SpawnPinDragEvent(OwnerPanelPtr.ToSharedRef(), PinArray, /*bIsShiftOperation=*/ false));
}
else
{
// Shouldn't get here, but just in case we lose our previous links somehow after breaking them, we'll just skip the drag.
return FReply::Handled();
}
}
// Start a drag-drop on the pin
if (ensure(OwnerNodePinned.IsValid()))
{
TArray<TSharedRef<SGraphPin>> PinArray;
PinArray.Add(SharedThis(this));
return FReply::Handled().BeginDragDrop(SpawnPinDragEvent(OwnerNodePinned->GetOwnerPanel().ToSharedRef(), PinArray, MouseEvent.IsShiftDown()));
}
else
{
return FReply::Unhandled();
}
}
else
{
// It's not connectable, but we don't want anything above us to process this left click.
return FReply::Handled();
}
}
else
{
return FReply::Unhandled();
}
}
FReply SAnimationOutlinerTreeNode::OnMouseButtonDown( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
if( MouseEvent.GetEffectingButton() == EKeys::LeftMouseButton && DisplayNode->IsSelectable() )
{
FSequencer& Sequencer = DisplayNode->GetSequencer();
bool bSelected = Sequencer.GetSelection().IsSelected(DisplayNode.ToSharedRef());
TArray<TSharedPtr<FSequencerDisplayNode> > AffectedNodes;
AffectedNodes.Add(DisplayNode.ToSharedRef());
if (MouseEvent.IsShiftDown())
{
FSequencerNodeTree& ParentTree = DisplayNode->GetParentTree();
const TArray< TSharedRef<FSequencerDisplayNode> >RootNodes = ParentTree.GetRootNodes();
// Get all nodes in order
TArray<TSharedRef<FSequencerDisplayNode> > AllNodes;
for (int32 i = 0; i < RootNodes.Num(); ++i)
{
GetAllDescendantNodes(RootNodes[i], AllNodes);
}
int32 FirstIndexToSelect = INT32_MAX;
int32 LastIndexToSelect = INT32_MIN;
for (int32 ChildIndex = 0; ChildIndex < AllNodes.Num(); ++ChildIndex)
{
TSharedRef<FSequencerDisplayNode> ChildNode = AllNodes[ChildIndex];
if (ChildNode == DisplayNode.ToSharedRef() || Sequencer.GetSelection().IsSelected(ChildNode))
{
if (ChildIndex < FirstIndexToSelect)
{
FirstIndexToSelect = ChildIndex;
}
if (ChildIndex > LastIndexToSelect)
{
LastIndexToSelect = ChildIndex;
}
}
}
if (FirstIndexToSelect != INT32_MAX && LastIndexToSelect != INT32_MIN)
{
for (int32 ChildIndex = FirstIndexToSelect; ChildIndex <= LastIndexToSelect; ++ChildIndex)
{
TSharedRef<FSequencerDisplayNode> ChildNode = AllNodes[ChildIndex];
if (!Sequencer.GetSelection().IsSelected(ChildNode))
{
Sequencer.GetSelection().AddToSelection(ChildNode);
AffectedNodes.Add(ChildNode);
}
}
}
}
else if( MouseEvent.IsControlDown() )
{
// Toggle selection when control is down
if (bSelected)
{
Sequencer.GetSelection().RemoveFromSelection(DisplayNode.ToSharedRef());
}
else
{
Sequencer.GetSelection().AddToSelection(DisplayNode.ToSharedRef());
}
}
else
{
// Deselect the other nodes and select this node.
Sequencer.GetSelection().EmptySelectedOutlinerNodes();
Sequencer.GetSelection().AddToSelection(DisplayNode.ToSharedRef());
}
OnSelectionChanged.ExecuteIfBound( AffectedNodes );
return FReply::Handled();
}
return FReply::Unhandled();
}
void FResizeSection::OnDrag( const FPointerEvent& MouseEvent, const FVector2D& LocalMousePos, const FTimeToPixel& TimeToPixelConverter, TSharedPtr<FTrackNode> SequencerNode )
{
bool bIsDilating = MouseEvent.IsControlDown();
if( Section.IsValid() )
{
// Convert the current mouse position to a time
float NewTime = TimeToPixelConverter.PixelToTime( LocalMousePos.X );
// Find the borders of where you can drag to
TRange<float> SectionBoundaries = GetSectionBoundaries(Section.Get(), SequencerNode);
// Snapping
if ( Settings->GetIsSnapEnabled() )
{
bool bSnappedToSection = false;
if ( Settings->GetSnapSectionTimesToSections() )
{
TArray<float> TimesToSnapTo;
GetSectionSnapTimes(TimesToSnapTo, Section.Get(), SequencerNode, bIsDilating);
TOptional<float> NewSnappedTime = SnapToTimes(NewTime, TimesToSnapTo, TimeToPixelConverter);
if (NewSnappedTime.IsSet())
{
NewTime = NewSnappedTime.GetValue();
bSnappedToSection = true;
}
}
if ( bSnappedToSection == false && Settings->GetSnapSectionTimesToInterval() )
{
NewTime = Settings->SnapTimeToInterval(NewTime);
}
}
if( bDraggingByEnd )
{
// Dragging the end of a section
// Ensure we aren't shrinking past the start time
NewTime = FMath::Clamp( NewTime, Section->GetStartTime(), SectionBoundaries.GetUpperBoundValue() );
if (bIsDilating)
{
float NewSize = NewTime - Section->GetStartTime();
float DilationFactor = NewSize / Section->GetTimeSize();
Section->DilateSection(DilationFactor, Section->GetStartTime(), DraggedKeyHandles);
}
else
{
Section->SetEndTime( NewTime );
}
}
else if( !bDraggingByEnd )
{
// Dragging the start of a section
// Ensure we arent expanding past the end time
NewTime = FMath::Clamp( NewTime, SectionBoundaries.GetLowerBoundValue(), Section->GetEndTime() );
if (bIsDilating)
{
float NewSize = Section->GetEndTime() - NewTime;
float DilationFactor = NewSize / Section->GetTimeSize();
Section->DilateSection(DilationFactor, Section->GetEndTime(), DraggedKeyHandles);
}
else
{
Section->SetStartTime( NewTime );
}
}
}
}
