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TAChart: Extract public function TChart.GetLegendItems

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git-svn-id: trunk@31334 -
This commit is contained in:
ask 2011-06-22 14:07:47 +00:00
parent 32a183ceaa
commit 80521e30cc
1 changed files with 22 additions and 11 deletions
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33
components/tachart/tagraph.pas
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@ -28,7 +28,7 @@ unit TAGraph;
interface interface
uses uses
Graphics, Classes, Controls, LCLType, SysUtils, Graphics, Classes, Contnrs, Controls, LCLType, SysUtils,
TAChartAxis, TAChartUtils, TADrawUtils, TALegend, TATypes; TAChartAxis, TAChartUtils, TADrawUtils, TALegend, TATypes;
type type
@ -279,6 +279,7 @@ type
procedure DrawLegendOn(ACanvas: TCanvas; var ARect: TRect); procedure DrawLegendOn(ACanvas: TCanvas; var ARect: TRect);
procedure EnableRedrawing; procedure EnableRedrawing;
function GetFullExtent: TDoubleRect; function GetFullExtent: TDoubleRect;
function GetLegendItems: TObjectList;
procedure PaintOnAuxCanvas(ACanvas: TCanvas; ARect: TRect); procedure PaintOnAuxCanvas(ACanvas: TCanvas; ARect: TRect);
procedure PaintOnCanvas(ACanvas: TCanvas; ARect: TRect); procedure PaintOnCanvas(ACanvas: TCanvas; ARect: TRect);
procedure SaveToBitmapFile(const AFileName: String); inline; procedure SaveToBitmapFile(const AFileName: String); inline;
@ -286,9 +287,7 @@ type
function SaveToImage(AClass: TRasterImageClass): TRasterImage; function SaveToImage(AClass: TRasterImageClass): TRasterImage;
procedure StyleChanged(Sender: TObject); override; procedure StyleChanged(Sender: TObject); override;
procedure ZoomFull; override; procedure ZoomFull; override;
public
property RenderingParams: TChartRenderingParams
read GetRenderingParams write SetRenderingParams;
public // Coordinate conversion public // Coordinate conversion
function GraphToImage(const AGraphPoint: TDoublePoint): TPoint; function GraphToImage(const AGraphPoint: TDoublePoint): TPoint;
function ImageToGraph(const APoint: TPoint): TDoublePoint; function ImageToGraph(const APoint: TPoint): TDoublePoint;
@ -308,6 +307,8 @@ type
property LogicalExtent: TDoubleRect read FLogicalExtent write SetLogicalExtent; property LogicalExtent: TDoubleRect read FLogicalExtent write SetLogicalExtent;
property OnChartPaint: TChartPaintEvent property OnChartPaint: TChartPaintEvent
read FOnChartPaint write SetOnChartPaint; experimental; read FOnChartPaint write SetOnChartPaint; experimental;
property RenderingParams: TChartRenderingParams
read GetRenderingParams write SetRenderingParams;
property ReticulePos: TPoint read FReticulePos write SetReticulePos; property ReticulePos: TPoint read FReticulePos write SetReticulePos;
property SeriesCount: Integer read GetSeriesCount; property SeriesCount: Integer read GetSeriesCount;
property XGraphMax: Double read FCurrentExtent.b.X; property XGraphMax: Double read FCurrentExtent.b.X;
@ -923,6 +924,22 @@ begin
end; end;
end; end;
function TChart.GetLegendItems: TObjectList;
var
i: Integer;
begin
Result := TChartLegendItems.Create;
try
for i := 0 to SeriesCount - 1 do
with Series[i] do
if Active and GetShowInLegend then
GetLegendItemsBasic(Result);
except
FreeAndNil(Result);
raise;
end;
end;
function TChart.GetMargins(ADrawer: IChartDrawer): TRect; function TChart.GetMargins(ADrawer: IChartDrawer): TRect;
var var
i: Integer; i: Integer;
@ -1083,15 +1100,9 @@ end;
procedure TChart.PrepareLegend( procedure TChart.PrepareLegend(
ADrawer: IChartDrawer; out ALegendItems: TChartLegendItems; ADrawer: IChartDrawer; out ALegendItems: TChartLegendItems;
var AClipRect: TRect; out ALegendRect: TRect); var AClipRect: TRect; out ALegendRect: TRect);
var
i: Integer;
begin begin
ALegendItems := TChartLegendItems.Create; ALegendItems := GetLegendItems;
try try
for i := 0 to SeriesCount - 1 do
with Series[i] do
if Active and GetShowInLegend then
GetLegendItemsBasic(ALegendItems);
ALegendRect := Legend.Prepare(ADrawer, ALegendItems, AClipRect); ALegendRect := Legend.Prepare(ADrawer, ALegendItems, AClipRect);
except except
FreeAndNil(ALegendItems); FreeAndNil(ALegendItems);