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LCL: TLazIntfImage.Assign: copy DataDescription

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git-svn-id: trunk@52005 -
This commit is contained in:
mattias 2016-03-20 23:46:20 +00:00
parent 5d6e5012ea
commit de6e0945f8
1 changed files with 16 additions and 0 deletions
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16
lcl/intfgraphics.pas
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@ -232,6 +232,7 @@ type
constructor Create(ARawImage: TRawImage; ADataOwner: Boolean);
constructor CreateCompatible(IntfImg: TLazIntfImage; AWidth, AHeight: integer);
destructor Destroy; override;
procedure Assign(Source: TPersistent); override;
procedure BeginUpdate;
procedure EndUpdate;
procedure SetSize(AWidth, AHeight: integer); override;
@ -3458,6 +3459,21 @@ begin
inherited Destroy;
end;
procedure TLazIntfImage.Assign(Source: TPersistent);
var
Src: TLazIntfImage;
Desc: TRawImageDescription;
begin
if Source is TLazIntfImage then begin
Src:=TLazIntfImage(Source);
Desc:=Src.DataDescription;
Desc.Width:=0; // avoid side effects
Desc.Height:=0; // avoid side effects
DataDescription:=Src.DataDescription;
end;
inherited Assign(Source);
end;
procedure TLazIntfImage.AlphaFromMask(AKeepAlpha: Boolean);
var
x, y, xStop, yStop: Integer;