FillRect不会在Delphi XE2中绘制完整的TStringGrid单元格 [英] FillRect doesn't paint the complete TStringGrid cell in Delphi XE2

问题描述

FillRect 不会在Delphi XE2中绘制完整的 TStringGrid 单元格。默认颜色左侧有3个像素间距（ BiDiMode 设置为 bdLeftToRight ）。这个问题在我以前使用的Delphi 6中不存在。

FillRect doesn't paint the complete TStringGrid cell in Delphi XE2. There is a gap of 3 pixels on the left side in the default color (with BiDiMode set to bdLeftToRight). This problem doesn't exist in Delphi 6 which I used before.

procedure TShapeline.StringGrid1DrawCell(Sender: TObject; ACol, ARow: Integer;
  Rect: TRect; State: TGridDrawState);
begin
  Stringgrid1.Canvas.Brush.Color:=$00FF80FF;
  StringGrid1.Canvas.FillRect(Rect);
end;

我尝试更改所有属性（包括 DrawingStyle ）和不同的画笔样式，绘制的矩形不会填满整个单元格。

I tried to change all properties (including the DrawingStyle) and different brush styles, the painted rectangle doesn't fill the complete cell.

推荐答案

这是XE2中的预期行为当 DefaultDrawing = true 并启用主题（我不会在这里讨论好或坏 - 正如您可能已经注意到的，RigthToLeft的行为是不同的模式... ）

This is expected behaviour in XE2 when DefaultDrawing = true and themes are enabled (I'm not going to argue about good or bad here - as you might have noticed, the behaviour is different for RigthToLeft mode...).

解决方法是检查此条件并减少 Rect.Left 4像素调用 FillRect 。

A workaround is to check for this condition and decrement Rect.Left by 4 pixel before calling FillRect.

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