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Fix QPainter::drawGlyphs() with non-affine transformation

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When the matrix has an non-affine transformation, the text will have to
be rendered using the default path-renderer. This means going through
the drawTextItem() path (since drawStaticText() has no support for those
transformations) and it also means not pre-transforming the coordinates,
since the default implementation of drawTextItem() supports
transformations.

Task-number: QTBUG-18214
Reviewed-by: Jiang Jiang
(cherry picked from commit 55446d104db77fc7994ab12352b1c08bb7b63346)
This commit is contained in:
Eskil Abrahamsen Blomfeldt 2011-05-06 10:25:20 +02:00
parent 69c4b97be2
commit 80a230e221
1 changed files with 8 additions and 1 deletions
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9
src/gui/painting/qpainter.cpp
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@ -5811,6 +5811,13 @@ void QPainter::drawGlyphs(const QPointF &position, const QGlyphs &glyphs)
d->extended != 0
? qt_paintengine_supports_transformations(d->extended->type())
: qt_paintengine_supports_transformations(d->engine->type());
// If the matrix is not affine, the paint engine will fall back to
// drawing the glyphs as paths, which in turn means we should not
// preprocess the glyph positions
if (!d->state->matrix.isAffine())
paintEngineSupportsTransformations = true;
for (int i=0; i<count; ++i) {
QPointF processedPosition = position + glyphPositions.at(i);
if (!paintEngineSupportsTransformations)
@ -5854,7 +5861,7 @@ void QPainterPrivate::drawGlyphs(quint32 *glyphArray, QFixedPoint *positions, in
QFixed width = rightMost - leftMost;
if (extended != 0) {
if (extended != 0 && state->matrix.isAffine()) {
QStaticTextItem staticTextItem;
staticTextItem.color = state->pen.color();
staticTextItem.font = state->font;