為什么80%的碼農都做不了架構師？>>> ??

{相關方法} TDirect2DCanvas.DrawEllipse(); TDirect2DCanvas.DrawLine(); TDirect2DCanvas.DrawRectangle(); TDirect2DCanvas.DrawRoundedRectangle(); TDirect2DCanvas.FillEllipse(); TDirect2DCanvas.FillRectangle(); TDirect2DCanvas.FillRoundedRectangle();{相關結構} TD2DPoint2f (或 D2D_POINT_2F) //浮點點結構; 構建函數 D2D1PointF(); 可從 TPoint 隱式轉換到 TD2DPoint2f TD2D1Ellipse (或 D2D1_ELLIPSE) //浮點橢圓結構; 構建函數 D2D1Ellipse(); TD2D1RectF (或 D2D1_RECT_F) //浮點矩形結構; 構建函數 D2D1RectF(); 可從 TRect 隱式轉換到 TD2D1RectF TD2D1RoundedRect (或 D2D1_ROUNDED_RECT) //浮點圓角矩形結構; 構建函數 D2D1RoundedRect();

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測試代碼：

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uses Direct2D, D2D1;procedure TForm1.FormPaint(Sender: TObject); varcvs: TDirect2DCanvas;fPt: TD2DPoint2f;fLeft,fTop: Single; beginfPt := D2D1PointF(ClientWidth / 2, ClientHeight / 2);fLeft := ClientWidth / 4;fTop := ClientHeight / 4;cvs := TDirect2DCanvas.Create(Canvas, ClientRect);cvs.BeginDraw;cvs.Pen.Color := clRed;cvs.Pen.Width := 2;cvs.Brush.Color := clBlack;cvs.FillRectangle(D2D1RectF(fLeft, fTop, fLeft*3, fTop*3));cvs.Brush.Color := clGreen;cvs.FillRoundedRectangle(D2D1RoundedRect(D2D1RectF(fLeft, fTop, fLeft*3, fTop*3), 32, 32));cvs.Brush.Color := clBlue;cvs.FillEllipse(D2D1Ellipse(fPt, fLeft, fTop));cvs.DrawRectangle(D2D1RectF(fLeft, fTop, fLeft*3, fTop*3));cvs.DrawRoundedRectangle(D2D1RoundedRect(D2D1RectF(fLeft, fTop, fLeft*3, fTop*3), 32, 32));cvs.DrawEllipse(D2D1Ellipse(fPt, fLeft, fTop));cvs.DrawLine(D2D1PointF(fLeft, fTop), D2D1PointF(fLeft*3, fTop*3));cvs.EndDraw;cvs.Free; end;procedure TForm1.FormResize(Sender: TObject); beginRepaint; end;

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轉載于:https://my.oschina.net/hermer/blog/320456

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