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{
*****************************************************************************
See the file COPYING.modifiedLGPL.txt, included in this distribution,
for details about the license.
*****************************************************************************
Authors: Alexander Klenin
}
unit TAGUIConnectorBGRA;
{$H+}
interface
uses
Classes, Graphics,
TAGUIConnector;
type
TChartGUIConnectorBGRA = class(TChartGUIConnector)
public
procedure CreateDrawer(var AData: TChartGUIConnectorData); override;
procedure SetBounds(var AData: TChartGUIConnectorData); override;
procedure Display(var AData: TChartGUIConnectorData); override;
end;
procedure Register;
implementation
uses
BGRABitmap, SysUtils, TAChartUtils, TADrawerBGRA, TADrawerCanvas, TAGeometry;
type
TBGRABitmapOwnerDrawer = class(TBGRABitmapDrawer)
public
destructor Destroy; override;
procedure SetSize(ASize: TPoint);
procedure PaintOnCanvas(ACanvas: TCanvas; const ARect: TRect);
end;
procedure Register;
begin
RegisterComponents(CHART_COMPONENT_IDE_PAGE, [TChartGUIConnectorBGRA]);
end;
{ TChartGUIConnectorBGRA }
procedure TChartGUIConnectorBGRA.CreateDrawer(
var AData: TChartGUIConnectorData);
begin
AData.FDrawer := TBGRABitmapOwnerDrawer.Create(TBGRABitmap.Create(0, 0));
AData.FDrawer.DoGetFontOrientation := @CanvasGetFontOrientationFunc;
end;
procedure TChartGUIConnectorBGRA.Display(var AData: TChartGUIConnectorData);
begin
(AData.FDrawer as TBGRABitmapOwnerDrawer).PaintOnCanvas(
AData.FCanvas, AData.FBounds);
end;
procedure TChartGUIConnectorBGRA.SetBounds(var AData: TChartGUIConnectorData);
begin
AData.FDrawerBounds.TopLeft := Point(0, 0);
AData.FDrawerBounds.BottomRight :=
AData.FBounds.BottomRight - AData.FBounds.TopLeft;
(AData.FDrawer as TBGRABitmapOwnerDrawer).SetSize(
AData.FDrawerBounds.BottomRight);
end;
{ TBGRABitmapOwnerDrawer }
destructor TBGRABitmapOwnerDrawer.Destroy;
begin
inherited;
FreeAndNil(FBitmap);
end;
procedure TBGRABitmapOwnerDrawer.PaintOnCanvas(
ACanvas: TCanvas; const ARect: TRect);
begin
FBitmap.Draw(ACanvas, ARect);
end;
procedure TBGRABitmapOwnerDrawer.SetSize(ASize: TPoint);
begin
FBitmap.SetSize(ASize.X, ASize.Y);
end;
end.
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