diff options
Diffstat (limited to 'canvas/source/cairo/cairo_canvashelper.cxx')
| -rw-r--r-- | canvas/source/cairo/cairo_canvashelper.cxx | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/canvas/source/cairo/cairo_canvashelper.cxx b/canvas/source/cairo/cairo_canvashelper.cxx index 91bc052b509b..bd86c8977152 100644 --- a/canvas/source/cairo/cairo_canvashelper.cxx +++ b/canvas/source/cairo/cairo_canvashelper.cxx @@ -276,6 +276,8 @@ namespace cairocanvas useStates( viewState, renderState, true ); cairo_move_to( mpCairo.get(), aBezierSegment.Px + 0.5, aBezierSegment.Py + 0.5 ); + // tdf#99165 correction of control poinits not needed here, only hairlines drawn + // (see cairo_set_line_width above) cairo_curve_to( mpCairo.get(), aBezierSegment.C1x + 0.5, aBezierSegment.C1y + 0.5, aBezierSegment.C2x + 0.5, aBezierSegment.C2y + 0.5, @@ -949,7 +951,7 @@ namespace cairocanvas bool bOpToDo = false; cairo_matrix_t aOrigMatrix, aIdentityMatrix; - double nX, nY, nBX, nBY, nAX, nAY; + double nX, nY, nBX, nBY, nAX, nAY, nLastX, nLastY; cairo_get_matrix( pCairo, &aOrigMatrix ); cairo_matrix_init_identity( &aIdentityMatrix ); @@ -1022,6 +1024,20 @@ namespace cairocanvas nBY += 0.5; } + // tdf#99165 if the control points are 'empty', create the mathematical + // correct replacement ones to avoid problems with the graphical sub-system + if(basegfx::fTools::equal(nAX, nLastX) && basegfx::fTools::equal(nAY, nLastY)) + { + nAX = nLastX + ((nBX - nLastX) * 0.3); + nAY = nLastY + ((nBY - nLastY) * 0.3); + } + + if(basegfx::fTools::equal(nBX, nX) && basegfx::fTools::equal(nBY, nY)) + { + nBX = nX + ((nAX - nX) * 0.3); + nBY = nY + ((nAY - nY) * 0.3); + } + cairo_curve_to( pCairo, nAX, nAY, nBX, nBY, nX, nY ); } else @@ -1031,6 +1047,9 @@ namespace cairocanvas } bOpToDo = true; } + + nLastX = nX; + nLastY = nY; } if( aPolygon.isClosed() ) |