上周,我决定创建一个用于测量C++代码覆盖率的Visual Studio扩展。基本上我自己需要我的日常工作。我想到的是可以找到的项目https://github.com/atlaste/CPPCoverage。文本前面的Visual Studio装饰会干扰选择
大部分工作正常。然而,我有一些装饰层的问题:
该项目的特点之一是创建(未)覆盖代码的突出显示。突出自身工作正常,但似乎与Visual Studio的选择代码干扰:
相关的代码这是负责的高亮:
private void HighlightCoverage(CoverageState[] coverdata, ITextViewLine line)
{
IWpfTextViewLineCollection textViewLines = view.TextViewLines;
int lineno = 1 + view.TextSnapshot.GetLineNumberFromPosition(line.Extent.Start);
CoverageState covered = lineno < coverdata.Length ?
coverdata[lineno] : CoverageState.Irrelevant;
if (covered != CoverageState.Irrelevant)
{
SnapshotSpan span = new SnapshotSpan(view.TextSnapshot,
Span.FromBounds(line.Start, line.End));
Geometry g = textViewLines.GetMarkerGeometry(span);
if (g != null)
{
GeometryDrawing drawing = (covered == CoverageState.Covered) ?
new GeometryDrawing(coveredBrush, coveredPen, g) :
new GeometryDrawing(uncoveredBrush, uncoveredPen, g);
drawing.Freeze();
DrawingImage drawingImage = new DrawingImage(drawing);
drawingImage.Freeze();
Image image = new Image();
image.Source = drawingImage;
//Align the image with the top of the bounds of the text geometry
Canvas.SetLeft(image, g.Bounds.Left);
Canvas.SetTop(image, g.Bounds.Top);
layer.AddAdornment(AdornmentPositioningBehavior.TextRelative,
span, null, image, null);
}
}
}
与完整的代码正确的上下文可以在这里找到:https://github.com/atlaste/CPPCoverage/blob/master/CoverageExt/CodeRendering/CodeCoverage.cs。
问:有人可以告诉我如何在背景而不是前景渲染块?
PS:作为一个变通我注意到你可以设置不透明度图层。虽然这是一个很好的解决办法,但我宁愿将该图层置于后台。 – atlaste