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industrial: Anti-aliased drawing of scaled TLEDNumber at lowest size.

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git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@7313 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
wp_xxyyzz
2020-01-22 06:28:50 +00:00
parent eaf32201bd
commit 019e5e3a8e
1 changed files with 19 additions and 3 deletions
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22
components/industrialstuff/source/lednumber.pas
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@@ -375,9 +375,20 @@ procedure TCustomLEDNumber.Paint;
var var
Points: array[0..MAX_POINTS] of TPoint; Points: array[0..MAX_POINTS] of TPoint;
ARect: TRect; ARect: TRect;
AADraw: Boolean; // anti-aliased drawing flag
savedScaleFactor: Double;
begin begin
lbDrawBMP.Width := Width; AADraw := (Font.PixelsPerInch <> 96) and (FSize = 2);
lbDrawBMP.Height := Height; if AADraw then begin
savedScaleFactor := FScaleFactor;
FScaleFactor := 2*FScaleFactor;
lbDrawBMP.Width := 2*Width;
lbDrawBMP.Height := 2*Height;
end else
begin
lbDrawBMP.Width := Width;
lbDrawBMP.Height := Height;
end;
Initialize(Points); Initialize(Points);
lbDrawBMP.Canvas.Brush.Color := FBgColor; lbDrawBMP.Canvas.Brush.Color := FBgColor;
@@ -385,7 +396,7 @@ begin
ProcessCaption(Points); ProcessCaption(Points);
Canvas.CopyMode := cmSrcCopy; Canvas.CopyMode := cmSrcCopy;
if BorderStyle <> lnbNone then if (BorderStyle <> lnbNone) then
begin begin
ARect := ClientRect; ARect := ClientRect;
case BorderStyle of case BorderStyle of
@@ -402,6 +413,11 @@ begin
inc(ARect.Right, 1); inc(ARect.Right, 1);
inc(ARect.Bottom, 1); inc(ARect.Bottom, 1);
Canvas.StretchDraw(ARect, lbDrawBMP); Canvas.StretchDraw(ARect, lbDrawBMP);
end else
if AADraw then begin
ARect := ClientRect;
Canvas.StretchDraw(ARect, lbDrawBMP);
FScaleFactor := savedScaleFactor;
end else end else
Canvas.Draw(0, 0, lbDrawBMP); Canvas.Draw(0, 0, lbDrawBMP);
end; end;