FReply SVisualLoggerTimelinesContainer::OnMouseWheel(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
{
	if (MouseEvent.IsLeftControlDown() || MouseEvent.IsLeftShiftDown())
	{
		return TimeSliderController->OnMouseWheel(*this, MyGeometry, MouseEvent);
	}
	return FReply::Unhandled();
}
示例#2
0
void FSceneViewport::UpdateModifierKeys( const FPointerEvent& InMouseEvent )
{
	KeyStateMap.Add( EKeys::LeftAlt, InMouseEvent.IsLeftAltDown() );
	KeyStateMap.Add( EKeys::RightAlt, InMouseEvent.IsRightAltDown() );
	KeyStateMap.Add(EKeys::LeftControl, InMouseEvent.IsLeftControlDown());
	KeyStateMap.Add(EKeys::RightControl, InMouseEvent.IsRightControlDown());
	KeyStateMap.Add(EKeys::LeftShift, InMouseEvent.IsLeftShiftDown());
	KeyStateMap.Add(EKeys::RightShift, InMouseEvent.IsRightShiftDown());
}
void SVisualLoggerTimelinesContainer::ChangeSelection(TSharedPtr<SLogVisualizerTimeline> InTimeline, const FPointerEvent& MouseEvent)
{
	if (MouseEvent.IsLeftShiftDown() == false)
	{
		if (MouseEvent.IsLeftControlDown())
		{
			SetSelectionState(InTimeline, !InTimeline->IsSelected(), false);
		}
		else
		{
			SetSelectionState(InTimeline, true, true);
		}
	}
	else
	{
		if (CachedSelectedTimelines.Num() == 0 && TimelineItems.Num())
		{
			SetSelectionState(TimelineItems[0], true, true);
		}

		TSharedPtr<SLogVisualizerTimeline> LastSelected = CachedSelectedTimelines.Num() ? CachedSelectedTimelines[CachedSelectedTimelines.Num() - 1] : nullptr;
		if (LastSelected.IsValid())
		{
			bool bStartedSelection = false;
			for (TSharedPtr<SLogVisualizerTimeline>& TimelineItem : TimelineItems)
			{
				if (TimelineItem == LastSelected || InTimeline == TimelineItem)
				{
					if (!bStartedSelection)
					{
						bStartedSelection = true;
					}
					else
					{
						bStartedSelection = false;
						break;
					}
				}
				if (bStartedSelection)
				{
					SetSelectionState(TimelineItem, true, false);
				}
			}
		}
		SetSelectionState(InTimeline, true, false);
	}
}
FReply FSequencerTimeSliderController::OnMouseWheel( TSharedRef<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.IsLeftControlDown() || MouseEvent.IsRightControlDown()) )
	{
		const float ZoomDelta = -0.2f * MouseEvent.GetWheelDelta();
		if (ZoomByDelta(ZoomDelta, MouseFractionX))
		{
			return FReply::Handled();
		}
	}
	else if (MouseEvent.IsLeftShiftDown() || MouseEvent.IsRightShiftDown())
	{
		PanByDelta(-MouseEvent.GetWheelDelta());
		return FReply::Handled();
	}
	
	return FReply::Unhandled();
}
示例#5
0
FReply FVisualLoggerTimeSliderController::OnMouseWheel( TSharedRef<SWidget> WidgetOwner, const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
	FReply ReturnValue = FReply::Unhandled();;

	if (MouseEvent.IsLeftShiftDown())
	{
		const float ZoomDelta = 0.025f * MouseEvent.GetWheelDelta();
		TimeSliderArgs.CursorSize.Set(FMath::Clamp(TimeSliderArgs.CursorSize.Get() + ZoomDelta, 0.0f, 1.0f));

		ReturnValue = FReply::Handled();
	}
	else if ( TimeSliderArgs.AllowZoom )
	{
		const float ZoomDelta = -0.1f * MouseEvent.GetWheelDelta();

		{
			TRange<float> LocalViewRange = TimeSliderArgs.ViewRange.Get();
			float LocalViewRangeMax = LocalViewRange.GetUpperBoundValue();
			float LocalViewRangeMin = LocalViewRange.GetLowerBoundValue();
			const float OutputViewSize = LocalViewRangeMax - LocalViewRangeMin;
			const float OutputChange = OutputViewSize * ZoomDelta;

			float NewViewOutputMin = LocalViewRangeMin - (OutputChange * 0.5f);
			float NewViewOutputMax = LocalViewRangeMax + (OutputChange * 0.5f);

			if( FMath::Abs( OutputChange ) > 0.01f && NewViewOutputMin < NewViewOutputMax )
			{
				float LocalClampMin = TimeSliderArgs.ClampRange.Get().GetLowerBoundValue();
				float LocalClampMax = TimeSliderArgs.ClampRange.Get().GetUpperBoundValue();

				// Clamp the range if clamp values are set
				if ( NewViewOutputMin < LocalClampMin )
				{
					NewViewOutputMin = LocalClampMin;
				}
				
				if ( NewViewOutputMax > LocalClampMax )
				{
					NewViewOutputMax = LocalClampMax;
				}

				TimeSliderArgs.OnViewRangeChanged.ExecuteIfBound(TRange<float>(NewViewOutputMin, NewViewOutputMax), EViewRangeInterpolation::Immediate, false);
				if (Scrollbar.IsValid())
				{
					float InOffsetFraction = (NewViewOutputMin - LocalClampMin) / (LocalClampMax - LocalClampMin);
					float InThumbSizeFraction = (NewViewOutputMax - NewViewOutputMin) / (LocalClampMax - LocalClampMin);
					Scrollbar->SetState(InOffsetFraction, InThumbSizeFraction);
				}
				if( !TimeSliderArgs.ViewRange.IsBound() )
				{	
					// The  output is not bound to a delegate so we'll manage the value ourselves
					TimeSliderArgs.ViewRange.Set( TRange<float>( NewViewOutputMin, NewViewOutputMax ) );
				}
			}
		}

		ReturnValue = FReply::Handled();
	}

	return ReturnValue;
}