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| author | Trond Kjernåsen <trond@trolltech.com> | 2009-03-31 11:07:07 +0200 |
|---|---|---|
| committer | Trond Kjernåsen <trond@trolltech.com> | 2009-03-31 11:10:22 +0200 |
| commit | 3d370dc92466b010bfe6cdd82411f7e3d13da7c1 (patch) | |
| tree | 9d726dea65ee37c40b852c7555b068a004a869ef /src/gui/painting/qpaintengine_alpha.cpp | |
| parent | a0601e169c114f66c5fb932a6cc8606a8151bebc (diff) | |
| download | qt4-tools-3d370dc92466b010bfe6cdd82411f7e3d13da7c1.tar.gz | |
Fix text drawing and perspective transforms for the Windows, PDF and
PostScript print engines.
The PDF/PostScript does not support perspective transforms, so it has
to be emulated through our draw_helper() fallback. PostScript doesn't
support alpha blending, so all perspective drawing needs to be forced
through the alpha print engine.
Task-number: 249754
Reviewed-by: Samuel
Diffstat (limited to 'src/gui/painting/qpaintengine_alpha.cpp')
| -rw-r--r-- | src/gui/painting/qpaintengine_alpha.cpp | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/gui/painting/qpaintengine_alpha.cpp b/src/gui/painting/qpaintengine_alpha.cpp index e38f6a4168..74cbebe4ce 100644 --- a/src/gui/painting/qpaintengine_alpha.cpp +++ b/src/gui/painting/qpaintengine_alpha.cpp @@ -80,6 +80,7 @@ bool QAlphaPaintEngine::begin(QPaintDevice *pdev) d->m_advancedPen = false; d->m_advancedBrush = false; d->m_complexTransform = false; + d->m_emulateProjectiveTransforms = false; // clear alpha region d->m_alphargn = QRegion(); @@ -116,6 +117,9 @@ void QAlphaPaintEngine::updateState(const QPaintEngineState &state) if (flags & QPaintEngine::DirtyTransform) { d->m_transform = state.transform(); d->m_complexTransform = (d->m_transform.type() > QTransform::TxScale); + d->m_emulateProjectiveTransforms = !(d->m_savedcaps & QPaintEngine::PerspectiveTransform) + && !(d->m_savedcaps & QPaintEngine::AlphaBlend) + && (d->m_transform.type() >= QTransform::TxProject); } if (flags & QPaintEngine::DirtyPen) { d->m_pen = state.pen(); @@ -163,7 +167,9 @@ void QAlphaPaintEngine::drawPath(const QPainterPath &path) if (d->m_pass == 0) { d->m_continueCall = false; - if (d->m_hasalpha || d->m_advancedPen || d->m_advancedBrush) { + if (d->m_hasalpha || d->m_advancedPen || d->m_advancedBrush + || d->m_emulateProjectiveTransforms) + { d->addAlphaRect(tr); } if (d->m_picengine) @@ -187,7 +193,9 @@ void QAlphaPaintEngine::drawPolygon(const QPointF *points, int pointCount, Polyg if (d->m_pass == 0) { d->m_continueCall = false; - if (d->m_hasalpha || d->m_advancedPen || d->m_advancedBrush) { + if (d->m_hasalpha || d->m_advancedPen || d->m_advancedBrush + || d->m_emulateProjectiveTransforms) + { d->addAlphaRect(tr); } |