本文整理汇总了C#中RenderTarget.Render方法的典型用法代码示例。如果您正苦于以下问题：C# RenderTarget.Render方法的具体用法？C# RenderTarget.Render怎么用？C# RenderTarget.Render使用的例子？那么恭喜您, 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类RenderTarget的用法示例。
在下文中一共展示了RenderTarget.Render方法的1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: CreateVisualBrush
public static SurfacePattern CreateVisualBrush(VisualBrush brush, Size targetSize)
{
var visual = brush.Visual;
if (visual == null)
{
return null;
}
var layoutable = visual as ILayoutable;
if (layoutable?.IsArrangeValid == false)
{
layoutable.Measure(Size.Infinity);
layoutable.Arrange(new Rect(layoutable.DesiredSize));
}
// TODO: This is directly ported from Direct2D and could probably be made more
// efficient on cairo by taking advantage of the fact that cairo has Extend.None.
var tileMode = brush.TileMode;
var sourceRect = brush.SourceRect.ToPixels(layoutable.Bounds.Size);
var destinationRect = brush.DestinationRect.ToPixels(targetSize);
var scale = brush.Stretch.CalculateScaling(destinationRect.Size, sourceRect.Size);
var translate = CalculateTranslate(brush, sourceRect, destinationRect, scale);
var intermediateSize = CalculateIntermediateSize(tileMode, targetSize, destinationRect.Size);
using (var intermediate = new ImageSurface(Format.ARGB32, (int)intermediateSize.Width, (int)intermediateSize.Height))
using (var ctx = new RenderTarget(intermediate).CreateDrawingContext())
{
Rect drawRect;
var transform = CalculateIntermediateTransform(
tileMode,
sourceRect,
destinationRect,
scale,
translate,
out drawRect);
using (ctx.PushClip(drawRect))
using (ctx.PushPostTransform(transform))
{
ctx.Render(visual);
}
var result = new SurfacePattern(intermediate);
if ((brush.TileMode & TileMode.FlipXY) != 0)
{
// TODO: Currently always FlipXY as that's all cairo supports natively.
// Support separate FlipX and FlipY by drawing flipped images to intermediate
// surface.
result.Extend = Extend.Reflect;
}
else
{
result.Extend = Extend.Repeat;
}
if (brush.TileMode != TileMode.None)
{
var matrix = result.Matrix;
matrix.InitTranslate(-destinationRect.X, -destinationRect.Y);
result.Matrix = matrix;
}
return result;
}
}