diff options
| -rw-r--r-- | vcl/skia/gdiimpl.cxx | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/vcl/skia/gdiimpl.cxx b/vcl/skia/gdiimpl.cxx index 378d51d1cf9f..2ffd68dee132 100644 --- a/vcl/skia/gdiimpl.cxx +++ b/vcl/skia/gdiimpl.cxx @@ -642,7 +642,11 @@ void SkiaSalGraphicsImpl::privateDrawAlphaRect(long nX, long nY, long nWidth, lo { paint.setColor(toSkColorWithTransparency(mLineColor, fTransparency)); paint.setStyle(SkPaint::kStroke_Style); - canvas->drawIRect(SkIRect::MakeXYWH(nX, nY, nWidth - 1, nHeight - 1), paint); + // The obnoxious "-1 DrawRect()" hack that I don't understand the purpose of (and I'm not sure + // if anybody does), but without it some cases do not work. The max() is needed because Skia + // will not drawn anything if width or height is 0. + canvas->drawIRect( + SkIRect::MakeXYWH(nX, nY, std::max(1L, nWidth - 1), std::max(1L, nHeight - 1)), paint); } addXorRegion(SkRect::MakeXYWH(nX, nY, nWidth, nHeight)); postDraw(); |