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* Implement missing abstract methods DoDraw, DoCopyRect

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git-svn-id: trunk@36403 -
This commit is contained in:
michael 2017-06-03 05:13:45 +00:00
parent 0fe12f2087
commit f6dde8b4b0
1 changed files with 31 additions and 1 deletions
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32
packages/fcl-image/src/fppixlcanv.pp
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@ -28,14 +28,18 @@ type
PixelCanvasException = class (TFPCanvasException);
{ TFPPixelCanvas }
TFPPixelCanvas = class (TFPCustomCanvas)
private
FHashWidth : word;
FRelativeBI : boolean;
protected
procedure DoCopyRect(x, y: integer; canvas: TFPCustomCanvas; const SourceRect: TRect); override;
function DoCreateDefaultFont : TFPCustomFont; override;
function DoCreateDefaultPen : TFPCustomPen; override;
function DoCreateDefaultBrush : TFPCustomBrush; override;
procedure DoDraw(x, y: integer; const image: TFPCustomImage); override;
procedure DoTextOut (x,y:integer;text:string); override;
procedure DoGetTextSize (text:string; var w,h:integer); override;
function DoGetTextHeight (text:string) : integer; override;
@ -73,12 +77,26 @@ begin
raise PixelCanvasException.Create(sErrNotAvailable);
end;
constructor TFPPixelCanvas.Create;
constructor TFPPixelCanvas.create;
begin
inherited;
FHashWidth := DefaultHashWidth;
end;
procedure TFPPixelCanvas.DoCopyRect(x, y: integer; canvas: TFPCustomCanvas; const SourceRect: TRect);
Var
W,H,XS1,XS2,YS1,YS2 : Integer;
begin
XS1:=SourceRect.Left;
XS2:=SourceRect.Right;
YS1:=SourceRect.Top;
YS2:=SourceRect.Bottom;
For H:=0 to YS2-YS1 do
For W:=0 to XS2-XS1 do
Colors[x+h,y+h]:=Canvas.Colors[XS1+W,YS1+H];
end;
function TFPPixelCanvas.DoCreateDefaultFont : TFPCustomFont;
begin
result := TFPEmptyFont.Create;
@ -108,6 +126,17 @@ begin
result.Style := bsSolid;
end;
procedure TFPPixelCanvas.DoDraw(x, y: integer; const image: TFPCustomImage);
Var
W,h : Integer;
begin
For H:=0 to Image.Height-1 do
For W:=0 to Image.Width-1 do
Colors[x+w,y+h]:=Image.Colors[W,H];
end;
procedure TFPPixelCanvas.DoTextOut (x,y:integer;text:string);
begin
NotImplemented;
@ -365,4 +394,5 @@ begin
end;
end;
end.