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C++ FSlateWindowElementList::QueueDeferredPainting方法代码示例

本文整理汇总了C++中FSlateWindowElementList::QueueDeferredPainting方法的典型用法代码示例。如果您正苦于以下问题:C++ FSlateWindowElementList::QueueDeferredPainting方法的具体用法?C++ FSlateWindowElementList::QueueDeferredPainting怎么用?C++ FSlateWindowElementList::QueueDeferredPainting使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在FSlateWindowElementList的用法示例。


在下文中一共展示了FSlateWindowElementList::QueueDeferredPainting方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: OnPaint

int32 SMenuAnchor::OnPaint( const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyClippingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled ) const
{
	FArrangedChildren ArrangedChildren( EVisibility::Visible );
	ArrangeChildren( AllottedGeometry, ArrangedChildren );
	
	// There may be zero elements in this array if our child collapsed/hidden
	if ( ArrangedChildren.Num() > 0 )
	{
		const FArrangedWidget& FirstChild = ArrangedChildren[0];

		// In the case where the user doesn't provide content to the menu anchor, the null widget
		// wont appear in the visible set of arranged children, so only immediately paint the first child,
		// if it's visible and matches the first slot content.
		const bool bHasArrangedAnchorContent = FirstChild.Widget == Children[0].GetWidget();
		if ( bHasArrangedAnchorContent )
		{
			const FSlateRect ChildClippingRect = AllottedGeometry.GetClippingRect().IntersectionWith(MyClippingRect);
			LayerId = FirstChild.Widget->Paint(Args.WithNewParent(this), FirstChild.Geometry, ChildClippingRect, OutDrawElements, LayerId + 1, InWidgetStyle, ShouldBeEnabled(bParentEnabled));
		}

		const bool bIsOpen = IsOpen();

		if ( bIsOpen )
		{
			// In the case where the anchor content is present and visible, it's the 1 index child, in the case
			// where the anchor content is invisible, it's the 0 index child.
			FArrangedWidget* PopupChild = nullptr;
			if ( bHasArrangedAnchorContent && ArrangedChildren.Num() > 1 )
			{
				PopupChild = &ArrangedChildren[1];
			}
			else if ( !bHasArrangedAnchorContent && ArrangedChildren.Num() == 1 )
			{
				PopupChild = &ArrangedChildren[0];
			}

			if ( PopupChild != nullptr )
			{
				 OutDrawElements.QueueDeferredPainting(
					FSlateWindowElementList::FDeferredPaint(PopupChild->Widget, Args, PopupChild->Geometry, MyClippingRect, InWidgetStyle, bParentEnabled));
			}
		} 
	}

	return LayerId;
}
开发者ID:1vanK,项目名称:AHRUnrealEngine,代码行数:46,代码来源:SMenuAnchor.cpp

示例2: OnPaint

int32 SPopup::OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyClippingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const
{
	FArrangedChildren ArrangedChildren(EVisibility::Visible);
	this->ArrangeChildren(AllottedGeometry, ArrangedChildren);

	// There may be zero elements in this array if our child collapsed/hidden
	if (ArrangedChildren.Num() > 0)
	{
		check(ArrangedChildren.Num() == 1);
		FArrangedWidget& TheChild = ArrangedChildren[0];

		FWidgetStyle CompoundedWidgetStyle = FWidgetStyle(InWidgetStyle)
			.BlendColorAndOpacityTint(ColorAndOpacity.Get())
			.SetForegroundColor(GetForegroundColor());

		// An SPopup just queues up its children to be painted after everything in this window is done painting.
		OutDrawElements.QueueDeferredPainting(
			FSlateWindowElementList::FDeferredPaint(TheChild.Widget, Args.WithNewParent(this), TheChild.Geometry, MyClippingRect, CompoundedWidgetStyle, ShouldBeEnabled(bParentEnabled))
		);
	}
	return LayerId;
}
开发者ID:RandomDeveloperM,项目名称:UE4_Hairworks,代码行数:22,代码来源:SPopup.cpp


注:本文中的FSlateWindowElementList::QueueDeferredPainting方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。