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LCL, fix postscriptcanvas roundrect problem on resolution change, adapted patch from Anton Kavalenka and Patrick Chevalley, issue #17214

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git-svn-id: trunk@27349 -
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jesus 2010-09-13 19:24:19 +00:00
parent 3290f05d67
commit d897a56d00
1 changed files with 13 additions and 9 deletions
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22
lcl/postscriptcanvas.pas
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@ -1761,7 +1761,7 @@ procedure TPostScriptPrinterCanvas.RoundRect(X1, Y1, X2, Y2: Integer; RX,
var
ellipsePath : string;
//fs:TFormatSettings;
pp1,pp2:TpsPoint;
pp1,pp2,r:TpsPoint;
begin
Changing;
RequiredState([csHandleValid, csBrushValid, csPenValid]);
@ -1784,18 +1784,22 @@ begin
save current matrix, translate to center of ellipse, scale by rx ry, and draw
a circle of unit radius in counterclockwise dir, return to original matrix
arguments are (cx, cy, rx, ry, startAngle, endAngle)}
ellipsePath:='matrix currentmatrix %f %f translate %d %d scale 0 0 1 %d %d arc setmatrix';
ellipsePath:='matrix currentmatrix %f %f translate %f %f scale 0 0 1 %d %d arc setmatrix';
PixelsToPoints(RX,RY,r.fx,r.fy);
{choice between newpath and moveto beginning of arc
go with newpath for precision, does this violate any assumptions in code???
write(format('%d %d moveto',[x1+rx, y1]),Lst # this also works}
WriteB('newpath');
WriteB(Format(ellipsePath,[pp1.fx+rx,pp1.fy-ry,rx,ry,90,180],FFs));
WriteB(Format(ellipsePath,[pp1.fx+rx,pp2.fy+ry,rx,ry,180,270],FFs));
WriteB(Format(ellipsePath,[pp2.fx-rx,pp2.fy+ry,rx,ry,270,360],FFs));
WriteB(Format(ellipsePath,[pp2.fx-rx,pp1.fy-ry,rx,ry,0,90],FFs));
WriteB('closepath');
with r do
begin
WriteB('newpath');
WriteB(Format(ellipsePath,[pp1.fx+fx,pp1.fy-fy,fx,fy,90,180],FFs));
WriteB(Format(ellipsePath,[pp1.fx+fx,pp2.fy+fy,fx,fy,180,270],FFs));
WriteB(Format(ellipsePath,[pp2.fx-fx,pp2.fy+fy,fx,fy,270,360],FFs));
WriteB(Format(ellipsePath,[pp2.fx-fx,pp1.fy-fy,fx,fy,0,90],FFs));
WriteB('closepath');
end;
SetBrushFillPattern(True,True);
MoveToLastPos;