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| author | Tor Arne Vestbø <tor.arne.vestbo@digia.com> | 2013-01-24 14:59:52 +0100 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2013-01-24 18:34:11 +0100 |
| commit | cd1e21cf09c2512b58723ad527dcc1aad102787b (patch) | |
| tree | 1579de4665ffd7c6fdf41f5d6379f113ee4a24cb | |
| parent | a71c7fce8ac536212d78b525a8a76e5c130362ca (diff) | |
Use path-based text when painter has negative scale on raster/coretext
The CoreText font-engine is not able to produce glyphs with a negative
scale (flipped). We need to report this fact back to the raster paint
engine, so that it can fall back to painter-path based text drawing.
For the GL engine this is not an issue, as the engine is able to handle
the flipping itself, while still using a non-flipped glyph-cache.
Task-number: QTBUG-29284
Change-Id: I3c24cee091786faae8a5c5dd756d208163330bfc
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
| -rw-r--r-- | src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm b/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm index e2e8f1daa4..70416bc2dd 100644 --- a/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm +++ b/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm @@ -619,7 +619,13 @@ QFontEngine *QCoreTextFontEngine::cloneWithSize(qreal pixelSize) const bool QCoreTextFontEngine::supportsTransformation(const QTransform &transform) const { - return transform.type() <= QTransform::TxScale; + if (transform.type() < QTransform::TxScale) + return true; + else if (transform.type() == QTransform::TxScale && + transform.m11() >= 0 && transform.m22() >= 0) + return true; + else + return false; } QT_END_NAMESPACE |