bool FCascadeEdPreviewViewportClient::InputKey(FViewport* Viewport, int32 ControllerId, FKey Key, EInputEvent Event, float AmountDepressed, bool Gamepad)
{
//Update cursor
UpdateAndApplyCursorVisibility();
bool bHandled = false;
const int32 HitX = Viewport->GetMouseX();
const int32 HitY = Viewport->GetMouseY();
if(Key == EKeys::LeftMouseButton)
{
if (Event == IE_Pressed)
{
Viewport->InvalidateHitProxy();
HHitProxy* HitResult = Viewport->GetHitProxy(HitX,HitY);
if (HitResult && HitResult->IsA(HWidgetUtilProxy::StaticGetType()))
{
HWidgetUtilProxy* WidgetProxy = (HWidgetUtilProxy*)HitResult;
if (WidgetProxy->Info1 == VectorFieldHitproxyInfo)
{
bManipulatingVectorField = true;
}
WidgetAxis = WidgetProxy->Axis;
// Calculate the scree-space directions for this drag.
FSceneViewFamilyContext ViewFamily( FSceneViewFamily::ConstructionValues( Viewport, GetScene(), EngineShowFlags ));
FSceneView* View = CalcSceneView(&ViewFamily);
WidgetProxy->CalcVectors(View, FViewportClick(View, this, Key, Event, HitX, HitY), LocalManipulateDir, WorldManipulateDir, DragX, DragY);
bHandled = true;
}
}
else if (Event == IE_Released)
{
if (bManipulatingVectorField)
{
WidgetAxis = EAxisList::None;
bManipulatingVectorField = false;
bHandled = true;
}
}
}
else if (Key == EKeys::SpaceBar && Event == IE_Pressed)
{
if (CascadePtr.Pin()->GetSelectedModule() && CascadePtr.Pin()->GetSelectedModule()->IsA(UParticleModuleVectorFieldLocal::StaticClass()))
{
bHandled = true;
WidgetMM = (EWidgetMovementMode)((WidgetMM+1) % WMM_MAX);
}
}
if( !bHandled )
{
bHandled = FEditorViewportClient::InputKey(Viewport,ControllerId,Key,Event,AmountDepressed,Gamepad);
}
return bHandled;
}
void FVertexSnappingImpl::GetPossibleSnapActors( const FBox& AllowedBox, FIntPoint MouseLocation, FLevelEditorViewportClient* ViewportClient, const FSceneView* View, EAxisList::Type CurrentAxis, TSet< TWeakObjectPtr<AActor> >& ActorsToIgnore, TArray<FSnapActor>& OutActorsInBox )
{
if( CurrentAxis == EAxisList::Screen && !ViewportClient->IsOrtho() )
{
HHitProxy* HitProxy = ViewportClient->Viewport->GetHitProxy( MouseLocation.X, MouseLocation.Y );
if( HitProxy && HitProxy->IsA(HActor::StaticGetType()) )
{
AActor* HitProxyActor = static_cast<HActor*>(HitProxy)->Actor ;
if( HitProxyActor && !ActorsToIgnore.Contains(HitProxyActor) )
{
ActorsToIgnore.Add( HitProxyActor );
OutActorsInBox.Add( FSnapActor( HitProxyActor, HitProxyActor->GetComponentsBoundingBox(true) ) );
}
}
}
if( OutActorsInBox.Num() == 0 )
{
GetActorsInsideBox( AllowedBox, ViewportClient->GetWorld(), OutActorsInBox, ActorsToIgnore, View );
}
}
/**
* @return true if the key was handled by this editor mode tool.
*/
bool FModeTool_InterpEdit::InputKey(FLevelEditorViewportClient* ViewportClient, FViewport* Viewport, FKey Key, EInputEvent Event)
{
check( GEditorModeTools().IsModeActive(FBuiltinEditorModes::EM_InterpEdit) );
FEdModeInterpEdit* mode = (FEdModeInterpEdit*)GEditorModeTools().GetActiveMode(FBuiltinEditorModes::EM_InterpEdit);
if( !mode->InterpEd )
{
// Abort cleanly on InerpEd not yet being assigned. This can occasionally be the case when receiving
// modifier key release events when changing into interp edit mode.
return false;
}
bool bCtrlDown = Viewport->KeyState(EKeys::LeftControl) || Viewport->KeyState(EKeys::RightControl);
bool bAltDown = Viewport->KeyState(EKeys::LeftAlt) || Viewport->KeyState(EKeys::RightAlt);
bool bShiftDown = Viewport->KeyState(EKeys::LeftShift) || Viewport->KeyState(EKeys::RightShift);
if( Key == EKeys::LeftMouseButton )
{
if( Event == IE_Pressed)
{
int32 HitX = ViewportClient->Viewport->GetMouseX();
int32 HitY = ViewportClient->Viewport->GetMouseY();
HHitProxy* HitResult = ViewportClient->Viewport->GetHitProxy(HitX, HitY);
if(HitResult)
{
if( HitResult->IsA(HInterpTrackKeypointProxy::StaticGetType()) )
{
HInterpTrackKeypointProxy* KeyProxy = (HInterpTrackKeypointProxy*)HitResult;
UInterpGroup* Group = KeyProxy->Group;
UInterpTrack* Track = KeyProxy->Track;
int32 KeyIndex = KeyProxy->KeyIndex;
// Using the CTRL modifier invokes multi-select keyframe selection.
if( bCtrlDown )
{
// If key is already selected, deselect the key.
if( mode->InterpEd->KeyIsInSelection(Group, Track, KeyIndex) )
{
mode->InterpEd->RemoveKeyFromSelection(Group, Track, KeyIndex);
mode->InterpEd->InvalidateTrackWindowViewports();
}
// Otherwise, select the key while preserving previous selection.
else
{
// This will invalidate the display - so we must not access the KeyProxy after this!
mode->InterpEd->SelectTrack( Group, Track, false);
mode->InterpEd->AddKeyToSelection(Group, Track, KeyIndex, !bShiftDown);
}
}
else
{
mode->InterpEd->SelectTrack( Group, Track );
// NOTE: Clear previously-selected tracks because ctrl is not down.
mode->InterpEd->ClearKeySelection();
mode->InterpEd->AddKeyToSelection(Group, Track, KeyIndex, !bShiftDown);
}
}
else if( HitResult->IsA(HInterpTrackKeyHandleProxy::StaticGetType()) )
{
// If we clicked on a 3D track handle, remember which key.
HInterpTrackKeyHandleProxy* KeyProxy = (HInterpTrackKeyHandleProxy*)HitResult;
DragGroup = KeyProxy->Group;
DragTrackIndex = KeyProxy->TrackIndex;
DragKeyIndex = KeyProxy->KeyIndex;
bDragArriving = KeyProxy->bArriving;
bMovingHandle = true;
mode->InterpEd->BeginDrag3DHandle(DragGroup, DragTrackIndex);
}
}
}
else if( Event == IE_Released)
{
if(bMovingHandle)
{
mode->InterpEd->EndDrag3DHandle();
bMovingHandle = false;
}
}
}
// Handle keys
if( Event == IE_Pressed )
{
if( Key == EKeys::Delete )
{
// Swallow 'Delete' key to avoid deleting stuff when trying to interpolate it!
return true;
}
else if( mode->InterpEd->ProcessKeyPress( Key, bCtrlDown, bAltDown ) )
{
return true;
}
}
return FModeTool::InputKey(ViewportClient, Viewport, Key, Event);
}
/**
* Begin tracking at the specified location for the specified viewport.
*/
void FMouseDeltaTracker::StartTracking(FEditorViewportClient* InViewportClient, const int32 InX, const int32 InY, const FInputEventState& InInputState, bool bNudge, bool bResetDragToolState)
{
DetermineCurrentAxis(InViewportClient);
// Initialize widget axis (in case it hasn't been set by the hovered hit proxy)
if (InViewportClient->Widget && InViewportClient->GetCurrentWidgetAxis() == EAxisList::None)
{
check(InViewportClient->Viewport);
HHitProxy* HitProxy = InViewportClient->Viewport->GetHitProxy(InX, InY);
if (HitProxy && HitProxy->IsA(HWidgetAxis::StaticGetType()))
{
EAxisList::Type ProxyAxis = ((HWidgetAxis*)HitProxy)->Axis;
InViewportClient->SetCurrentWidgetAxis(ProxyAxis);
}
}
const bool AltDown = InViewportClient->IsAltPressed();
const bool ShiftDown = InViewportClient->IsShiftPressed();
const bool ControlDown = InViewportClient->IsCtrlPressed();
const bool LeftMouseButtonDown = InViewportClient->Viewport->KeyState(EKeys::LeftMouseButton);
const bool RightMouseButtonDown = InViewportClient->Viewport->KeyState(EKeys::RightMouseButton);
const bool MiddleMouseButtonDown = InViewportClient->Viewport->KeyState(EKeys::MiddleMouseButton);
bool bIsDragging = ((ControlDown || ShiftDown) && (LeftMouseButtonDown || RightMouseButtonDown || MiddleMouseButtonDown)) ||
(InViewportClient->GetCurrentWidgetAxis() != EAxisList::None) || bNudge;
// Update bWidgetAxisControlledByDrag since we now know that we have begun dragging an object with the mouse.
if ( bIsDragging )
{
InViewportClient->bWidgetAxisControlledByDrag = true;
}
InViewportClient->TrackingStarted( InInputState, bIsDragging, bNudge );
if (InViewportClient->Widget)
{
InViewportClient->Widget->SetDragStartPosition(FVector2D(InX, InY));
InViewportClient->Widget->SetDragging(bIsDragging);
if (InViewportClient->GetWidgetMode() == FWidget::WM_Rotate)
{
InViewportClient->Invalidate();
}
}
// Clear bool that tracks whether AddDelta has been called
bHasReceivedAddDelta = false;
if( bResetDragToolState )
{
bHasAttemptedDragTool = false;
}
ensure( !DragTool.IsValid() );
StartSnapped = Start = StartScreen = FVector( InX, InY, 0 );
RawDelta = FVector::ZeroVector;
TrackingWidgetMode = InViewportClient->GetWidgetMode();
// No drag tool is active, so handle snapping.
switch( TrackingWidgetMode )
{
case FWidget::WM_Translate:
FSnappingUtils::SnapPointToGrid( StartSnapped, FVector(GEditor->GetGridSize(),GEditor->GetGridSize(),GEditor->GetGridSize()) );
break;
case FWidget::WM_Scale:
FSnappingUtils::SnapScale( StartSnapped, FVector(GEditor->GetGridSize(),GEditor->GetGridSize(),GEditor->GetGridSize()) );
break;
case FWidget::WM_Rotate:
{
FRotator Rotation( StartSnapped.X, StartSnapped.Y, StartSnapped.Z );
FSnappingUtils::SnapRotatorToGrid( Rotation );
StartSnapped = FVector( Rotation.Pitch, Rotation.Yaw, Rotation.Roll );
}
break;
case FWidget::WM_TranslateRotateZ:
case FWidget::WM_2D:
FSnappingUtils::SnapPointToGrid( StartSnapped, FVector(GEditor->GetGridSize(),GEditor->GetGridSize(),GEditor->GetGridSize()) );
break;
default:
break;
}
// Clear any snapping helpers on new movement
const bool bClearImmediatley = true;
FSnappingUtils::ClearSnappingHelpers( bClearImmediatley );
End = EndScreen = Start;
EndSnapped = StartSnapped;
bExternalMovement = false; //no external movement has occurred yet.
InViewportClient->Widget->ResetDeltaRotation();
}