diff options
Diffstat (limited to 'win/tkWinDraw.c')
| -rw-r--r-- | win/tkWinDraw.c | 52 |
1 files changed, 49 insertions, 3 deletions
diff --git a/win/tkWinDraw.c b/win/tkWinDraw.c index 1d17cc6..e13a5e5 100644 --- a/win/tkWinDraw.c +++ b/win/tkWinDraw.c @@ -741,6 +741,52 @@ XFillRectangles( /* *---------------------------------------------------------------------- * + * MakeAndStrokePath -- + * + * This function draws a shape using a list of points, a stipple pattern, + * and the specified drawing function. It does it through creation of a + * so-called 'path' (see GDI documentation on MSDN). + * + * Results: + * None. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ +static void +MakeAndStrokePath( + HDC dc, + POINT *winPoints, + int npoints, + WinDrawFunc func) /* Name of the Windows GDI drawing function: + this is either Polyline or Polygon. */ +{ + BeginPath(dc); + func(dc, winPoints, npoints); + /* + * In the case of closed polylines, the first and last points + * are the same. We want miter or bevel join be rendered also + * at this point, this needs telling the Windows GDI that the + * path is closed. + */ + if (func == Polyline) { + if ((winPoints[0].x == winPoints[npoints-1].x) && + (winPoints[0].y == winPoints[npoints-1].y)) { + CloseFigure(dc); + } + EndPath(dc); + StrokePath(dc); + } else { + EndPath(dc); + StrokeAndFillPath(dc); + } +} + +/* + *---------------------------------------------------------------------- + * * RenderObject -- * * This function draws a shape using a list of points, a stipple pattern, @@ -833,7 +879,7 @@ RenderObject( SetPolyFillMode(dcMem, (gc->fill_rule == EvenOddRule) ? ALTERNATE : WINDING); oldMemBrush = SelectObject(dcMem, CreateSolidBrush(gc->foreground)); - func(dcMem, winPoints, npoints); + MakeAndStrokePath(dcMem, winPoints, npoints, func); BitBlt(dc, rect.left, rect.top, width, height, dcMem, 0, 0, COPYFG); /* @@ -845,7 +891,7 @@ RenderObject( if (gc->fill_style == FillOpaqueStippled) { DeleteObject(SelectObject(dcMem, CreateSolidBrush(gc->background))); - func(dcMem, winPoints, npoints); + MakeAndStrokePath(dcMem, winPoints, npoints, func); BitBlt(dc, rect.left, rect.top, width, height, dcMem, 0, 0, COPYBG); } @@ -861,7 +907,7 @@ RenderObject( SetPolyFillMode(dc, (gc->fill_rule == EvenOddRule) ? ALTERNATE : WINDING); - func(dc, winPoints, npoints); + MakeAndStrokePath(dc, winPoints, npoints, func); SelectObject(dc, oldPen); } DeleteObject(SelectObject(dc, oldBrush)); |