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TAChart: Add AntialiasingMode property

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git-svn-id: trunk@30410 -
This commit is contained in:
ask 2011-04-21 13:39:03 +00:00
parent c7df2d5f85
commit 45279d3513
3 changed files with 28 additions and 0 deletions
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6
components/tachart/tadrawercanvas.pas
View File

@ -67,6 +67,7 @@ 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);
@ -223,6 +224,11 @@ begin
FCanvas.Rectangle(ARect);
end;
procedure TCanvasDrawer.SetAntialiasingMode(AValue: TChartAntialiasingMode);
begin
FCanvas.AntialiasingMode := TAntialiasingMode(AValue);
end;
procedure TCanvasDrawer.SetBrush(ABrush: TFPCustomBrush);
begin
FCanvas.Brush.Assign(ABrush);

9
components/tachart/tadrawutils.pas
View File

@ -24,7 +24,9 @@ uses
Classes, FPCanvas, FPImage, Types;
type
// Same types as in Graphics unit, but without dependency.
TChartColor = -$7FFFFFFF-1..$7FFFFFFF;
TChartAntialiasingMode = (amDontCare, amOn, amOff);
type
@ -94,6 +96,7 @@ type
procedure Rectangle(const ARect: TRect);
procedure Rectangle(AX1, AY1, AX2, AY2: Integer);
function Scale(ADistance: Integer): Integer;
procedure SetAntialiasingMode(AValue: TChartAntialiasingMode);
procedure SetBrushColor(AColor: TChartColor);
procedure SetBrush(ABrush: TFPCustomBrush);
procedure SetBrushParams(AStyle: TFPBrushStyle; AColor: TChartColor);
@ -137,6 +140,7 @@ type
procedure Polygon(
const APoints: array of TPoint; AStartIndex, ANumPts: Integer); virtual; abstract;
function Scale(ADistance: Integer): Integer; virtual;
procedure SetAntialiasingMode(AValue: TChartAntialiasingMode);
procedure SetDoChartColorToFPColorFunc(AValue: TChartColorToFPColorFunc);
procedure SetGetFontOrientationFunc(AValue: TGetFontOrientationFunc);
function TextExtent(const AText: String): TPoint;
@ -315,6 +319,11 @@ begin
Result := ADistance;
end;
procedure TBasicDrawer.SetAntialiasingMode(AValue: TChartAntialiasingMode);
begin
Unused(AValue);
end;
procedure TBasicDrawer.SetDoChartColorToFPColorFunc(
AValue: TChartColorToFPColorFunc);
begin

13
components/tachart/tagraph.pas
View File

@ -153,6 +153,7 @@ type
TChart = class(TCustomChart, ICoordTransformer)
private // Property fields
FAllowZoom: Boolean;
FAntialiasingMode: TChartAntialiasingMode;
FAxisList: TChartAxisList;
FAxisVisible: Boolean;
FBackColor: TColor;
@ -207,6 +208,7 @@ type
function GetToolset: TBasicChartToolset;
procedure HideReticule;
procedure SetAntialiasingMode(AValue: TChartAntialiasingMode);
procedure SetAxis(AIndex: Integer; AValue: TChartAxis);
procedure SetAxisList(AValue: TChartAxisList);
procedure SetAxisVisible(Value: Boolean);
@ -314,6 +316,8 @@ type
published
property AllowZoom: Boolean read FAllowZoom write FAllowZoom default true;
property AntialiasingMode: TChartAntialiasingMode
read FAntialiasingMode write SetAntialiasingMode default amDontCare;
property AxisList: TChartAxisList read FAxisList write SetAxisList;
property AxisVisible: Boolean read FAxisVisible write SetAxisVisible default true;
property BackColor: TColor read FBackColor write SetBackColor default clBtnFace;
@ -529,6 +533,7 @@ begin
FBroadcaster := TBroadcaster.Create;
FExtentBroadcaster := TBroadcaster.Create;
FAllowZoom := true;
FAntialiasingMode := amDontCare;
FAxisVisible := true;
FDrawer := TCanvasDrawer.Create(Canvas);
@ -678,6 +683,7 @@ var
legendRect: TRect;
begin
ADrawer.DrawingBegin(ARect);
ADrawer.SetAntialiasingMode(AntialiasingMode);
Clear(ADrawer, ARect);
FClipRect := ARect;
@ -1103,6 +1109,13 @@ begin
end;
end;
procedure TChart.SetAntialiasingMode(AValue: TChartAntialiasingMode);
begin
if FAntialiasingMode = AValue then exit;
FAntialiasingMode := AValue;
Invalidate;
end;
procedure TChart.SetAxis(AIndex: Integer; AValue: TChartAxis);
begin
FAxisList.SetAxis(AIndex, AValue);