diff options
Diffstat (limited to 'src/gui/painting/qpaintengine_raster.cpp')
-rw-r--r-- | src/gui/painting/qpaintengine_raster.cpp | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp index f6a749f979..b9202e1612 100644 --- a/src/gui/painting/qpaintengine_raster.cpp +++ b/src/gui/painting/qpaintengine_raster.cpp @@ -3010,13 +3010,15 @@ void QRasterPaintEngine::drawStaticTextItem(QStaticTextItem *textItem) ensurePen(); ensureRasterState(); + QTransform matrix = state()->matrix; + QFontEngine *fontEngine = textItem->fontEngine(); - if (!supportsTransformations(fontEngine)) { + if (shouldDrawCachedGlyphs(fontEngine, matrix)) { drawCachedGlyphs(textItem->numGlyphs, textItem->glyphs, textItem->glyphPositions, fontEngine); - } else if (state()->matrix.type() < QTransform::TxProject) { + } else if (matrix.type() < QTransform::TxProject) { bool invertible; - QTransform invMat = state()->matrix.inverted(&invertible); + QTransform invMat = matrix.inverted(&invertible); if (!invertible) return; @@ -3055,7 +3057,7 @@ void QRasterPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textIte QRasterPaintEngineState *s = state(); QTransform matrix = s->matrix; - if (!supportsTransformations(ti.fontEngine)) { + if (shouldDrawCachedGlyphs(ti.fontEngine, matrix)) { QVarLengthArray<QFixedPoint> positions; QVarLengthArray<glyph_t> glyphs; @@ -3299,21 +3301,25 @@ void QRasterPaintEngine::releaseDC(HDC) const /*! \internal */ -bool QRasterPaintEngine::supportsTransformations(QFontEngine *fontEngine) const +bool QRasterPaintEngine::requiresPretransformedGlyphPositions(QFontEngine *fontEngine, const QTransform &m) const { - const QTransform &m = state()->matrix; - return supportsTransformations(fontEngine, m); + // Cached glyphs always require pretransformed positions + if (shouldDrawCachedGlyphs(fontEngine, m)) + return true; + + // Otherwise let the base-class decide based on the transform + return QPaintEngineEx::requiresPretransformedGlyphPositions(fontEngine, m); } -/*! - \internal -*/ -bool QRasterPaintEngine::supportsTransformations(QFontEngine *fontEngine, const QTransform &m) const +bool QRasterPaintEngine::shouldDrawCachedGlyphs(QFontEngine *fontEngine, const QTransform &m) const { - if (fontEngine->supportsTransformations(m)) - return true; + // The font engine might not support filling the glyph cache + // with the given transform applied, in which case we need to + // fall back to the QPainterPath code-path. + if (!fontEngine->supportsTransformation(m)) + return false; - return !shouldDrawCachedGlyphs(fontEngine, m); + return QPaintEngineEx::shouldDrawCachedGlyphs(fontEngine, m); } /*! |