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#rb none Should be just copyright updates [CL 4680440 by Marcus Wassmer in Dev-Rendering branch]
91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
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#include "MouseCursorInteractor.h"
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#include "SceneView.h"
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#include "EditorViewportClient.h"
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#include "ViewportWorldInteraction.h"
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#include "Editor.h"
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UMouseCursorInteractor::UMouseCursorInteractor()
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: UViewportInteractor()
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{
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// Grabber spheres don't really work well with mouse cursor interactors, because the origin of the
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// interactor is right on the near view plane.
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bAllowGrabberSphere = false;
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}
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void UMouseCursorInteractor::Init()
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{
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KeyToActionMap.Reset();
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// Setup keys
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{
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AddKeyAction( EKeys::LeftMouseButton, FViewportActionKeyInput( ViewportWorldActionTypes::SelectAndMove ) );
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}
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}
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void UMouseCursorInteractor::PollInput()
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{
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InteractorData.LastTransform = InteractorData.Transform;
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InteractorData.LastRoomSpaceTransform = InteractorData.RoomSpaceTransform;
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// Make sure we have a valid viewport with a cursor over it, and that the viewport's world is the same as ours
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FEditorViewportClient* ViewportClientPtr = WorldInteraction->GetDefaultOptionalViewportClient();
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if( ViewportClientPtr != nullptr && ViewportClientPtr->GetWorld() == WorldInteraction->GetWorld() )
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{
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FEditorViewportClient& ViewportClient = *ViewportClientPtr;
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bIsControlKeyPressed = ViewportClient.Viewport->KeyState( EKeys::LeftControl ) || ViewportClient.Viewport->KeyState( EKeys::RightControl );
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// Only if we're not tracking (RMB looking)
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if( !ViewportClient.IsTracking() )
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{
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FViewport* Viewport = ViewportClient.Viewport;
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// Make sure we have a valid viewport, otherwise we won't be able to construct an FSceneView. The first time we're ticked we might not be properly setup. (@todo viewportinteraction)
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if( Viewport != nullptr && Viewport->GetSizeXY().GetMin() > 0 )
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{
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const int32 ViewportInteractX = Viewport->GetMouseX();
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const int32 ViewportInteractY = Viewport->GetMouseY();
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FSceneViewFamilyContext ViewFamily( FSceneViewFamily::ConstructionValues(
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Viewport,
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ViewportClient.GetScene(),
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ViewportClient.EngineShowFlags )
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.SetRealtimeUpdate( ViewportClient.IsRealtime() ) );
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FSceneView* SceneView = ViewportClient.CalcSceneView( &ViewFamily );
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const FViewportCursorLocation MouseViewportRay( SceneView, &ViewportClient, ViewportInteractX, ViewportInteractY );
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FVector RayOrigin = MouseViewportRay.GetOrigin();
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// If we're dealing with an orthographic view, push the origin of the ray backward along the viewport forward axis
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// to make sure that we can select objects that are behind the origin!
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if( !ViewportClient.IsPerspective() )
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{
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const float HalfLaserPointerLength = this->GetLaserPointerMaxLength() * 0.5f;
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RayOrigin -= MouseViewportRay.GetDirection() * HalfLaserPointerLength;
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}
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InteractorData.Transform = FTransform( MouseViewportRay.GetDirection().ToOrientationQuat(), RayOrigin, FVector( 1.0f ) );
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}
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}
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}
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InteractorData.RoomSpaceTransform = InteractorData.Transform * WorldInteraction->GetRoomTransform().Inverse();
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}
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bool UMouseCursorInteractor::IsModifierPressed() const
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{
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return bIsControlKeyPressed;
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}
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bool UMouseCursorInteractor::AllowLaserSmoothing() const
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{
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return false;
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}
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