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TAChart: Implement AntialiasingMode in svg drawing back-end

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git-svn-id: trunk@30412 -
This commit is contained in:
ask 2011-04-21 13:51:15 +00:00
parent 01d9f547ad
commit 5ee5cbcdc7
1 changed files with 18 additions and 0 deletions
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18
components/tachart/tadrawersvg.pas
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@ -28,6 +28,7 @@ type
TSVGDrawer = class(TBasicDrawer, IChartDrawer)
strict private
FAntialiasingMode: TChartAntialiasingMode;
FBrushColor: TFPColor;
FClippingPathId: Integer;
FFont: TFPCustomFont;
@ -80,6 +81,7 @@ type
AStartAngle16Deg, AAngleLength16Deg: Integer);
procedure Rectangle(const ARect: TRect);
procedure Rectangle(AX1, AY1, AX2, AY2: Integer);
procedure SetAntialiasingMode(AValue: TChartAntialiasingMode);
procedure SetBrushColor(AColor: TChartColor);
procedure SetBrushParams(AStyle: TFPBrushStyle; AColor: TChartColor);
procedure SetPenParams(AStyle: TFPPenStyle; AColor: TChartColor);
@ -151,6 +153,7 @@ end;
procedure TSVGDrawer.DrawingBegin(const ABoundingBox: TRect);
begin
FAntialiasingMode := amDontCare;
with ABoundingBox do
WriteFmt(
'<svg ' +
@ -163,6 +166,8 @@ end;
procedure TSVGDrawer.DrawingEnd;
begin
if FAntialiasingMode <> amDontCare then
WriteStr('</g>');
WriteStr('</svg>');
end;
@ -275,6 +280,19 @@ begin
Rectangle(Left, Top, Right, Bottom);
end;
procedure TSVGDrawer.SetAntialiasingMode(AValue: TChartAntialiasingMode);
const
AM_TO_CSS: array [amOn .. amOff] of String =
('geometricPrecision', 'crispEdges');
begin
if FAntialiasingMode = AValue then exit;
if FAntialiasingMode <> amDontCare then
WriteStr('</g>');
FAntialiasingMode := AValue;
if FAntialiasingMode <> amDontCare then
WriteFmt('<g style="shape-rendering: %s">',[AM_TO_CSS[FAntialiasingMode]]);
end;
procedure TSVGDrawer.SetBrush(ABrush: TFPCustomBrush);
begin
FBrushColor := ABrush.FPColor;