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Qt: use QPolygonH to draw poly regions in FillRgn()

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git-svn-id: trunk@40954 -
This commit is contained in:
zeljko 2013-04-30 15:06:39 +00:00
parent 20be8a3fc1
commit 1c729ef89c
2 changed files with 24 additions and 4 deletions
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1
lcl/interfaces/qt/qtobjects.pas
View File

@ -347,6 +347,7 @@ type
function numRects: Integer;
procedure translate(dx, dy: Integer);
property IsPolyRegion: Boolean read GetIsPolyRegion;
property Polygon: QPolygonH read FPolygon;
end;
// NOTE: PQtDCData was a pointer to a structure with QPainter information

27
lcl/interfaces/qt/qtwinapi.inc
View File

@ -2332,6 +2332,8 @@ var
R: TRect;
hasClipping: Boolean;
QtDC: TQtDeviceContext;
APath: QPainterPathH;
APolyFH: QPolygonFH;
begin
{$ifdef VerboseQtWinAPI}
DebugLn('[WinAPI FillRgn Rgn=', dbgs(RegionHnd),' Brush=', dbghex(hbr));
@ -2345,15 +2347,33 @@ begin
HasClipping := QtDC.getClipping;
QtDC.save;
if HasClipping then
OldRgn := TQtRegion.Create(True);
OldRgn := TQtRegion.Create(True)
else
OldRgn := nil;
try
if HasClipping then
QPainter_clipRegion(QtDC.Widget, OldRgn.FHandle);
if SelectClipRgn(DC, RegionHnd) <> ERROR then
begin
R := TQtRegion(RegionHnd).getBoundingRect;
QtDC.fillRect(@R, TQtBrush(hbr).FHandle);
if TQtRegion(RegionHnd).IsPolyRegion then
begin
APath := QPainterPath_create();
APolyFH := QPolygonF_create(TQtRegion(RegionHnd).Polygon);
try
QPainterPath_addPolygon(APath, APolyFH);
QPainter_fillPath(QtDC.Widget, APath, TQtBrush(hbr).FHandle);
finally
QPainterPath_destroy(APath);
QPolygonF_destroy(APolyFH);
end;
end else
begin
R := TQtRegion(RegionHnd).getBoundingRect;
QtDC.fillRect(@R, TQtBrush(hbr).FHandle);
end;
if HasClipping then
SelectClipRgn(DC, HRGN(OldRgn));
Result := True;
@ -2363,7 +2383,6 @@ begin
OldRgn.Free;
QtDC.restore;
end;
end;
{------------------------------------------------------------------------------