From 3d370dc92466b010bfe6cdd82411f7e3d13da7c1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Trond=20Kjern=C3=A5sen?= Date: Tue, 31 Mar 2009 11:07:07 +0200 Subject: 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 --- src/gui/painting/qpaintengine_alpha.cpp | 12 ++++++++++-- src/gui/painting/qpaintengine_alpha_p.h | 1 + src/gui/painting/qpdf.cpp | 5 +++++ src/gui/painting/qprintengine_win.cpp | 2 +- 4 files changed, 17 insertions(+), 3 deletions(-) diff --git a/src/gui/painting/qpaintengine_alpha.cpp b/src/gui/painting/qpaintengine_alpha.cpp index e38f6a4..74cbebe 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); } diff --git a/src/gui/painting/qpaintengine_alpha_p.h b/src/gui/painting/qpaintengine_alpha_p.h index f510c73..f7d7a34 100644 --- a/src/gui/painting/qpaintengine_alpha_p.h +++ b/src/gui/painting/qpaintengine_alpha_p.h @@ -113,6 +113,7 @@ public: bool m_advancedPen; bool m_advancedBrush; bool m_complexTransform; + bool m_emulateProjectiveTransforms; bool m_continueCall; QTransform m_transform; diff --git a/src/gui/painting/qpdf.cpp b/src/gui/painting/qpdf.cpp index b010209..55006f6 100644 --- a/src/gui/painting/qpdf.cpp +++ b/src/gui/painting/qpdf.cpp @@ -1106,6 +1106,11 @@ void QPdfBaseEngine::drawTextItem(const QPointF &p, const QTextItem &textItem) if (!d->hasPen || (d->clipEnabled && d->allClipped)) return; + if (d->stroker.matrix.type() >= QTransform::TxProject) { + QPaintEngine::drawTextItem(p, textItem); + return; + } + *d->currentPage << "q\n"; if(!d->simplePen) *d->currentPage << QPdf::generateMatrix(d->stroker.matrix); diff --git a/src/gui/painting/qprintengine_win.cpp b/src/gui/painting/qprintengine_win.cpp index d48b525..c8674b7 100644 --- a/src/gui/painting/qprintengine_win.cpp +++ b/src/gui/painting/qprintengine_win.cpp @@ -369,7 +369,7 @@ void QWin32PrintEngine::drawTextItem(const QPointF &p, const QTextItem &textItem QRgb brushColor = state->pen().brush().color().rgb(); bool fallBack = state->pen().brush().style() != Qt::SolidPattern || qAlpha(brushColor) != 0xff - || QT_WA_INLINE(false, d->txop >= QTransform::TxScale) + || QT_WA_INLINE(d->txop >= QTransform::TxProject, d->txop >= QTransform::TxScale) || ti.fontEngine->type() != QFontEngine::Win; -- cgit v0.12