Details
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Bug
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Resolution: Unresolved
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P2: Important
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None
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4.8.2
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Windows CE 6.0
Description
The following code throws an assertion under WinCE:
void Screen::paintEvent(QPaintEvent*) { QPainter painter(this); painter.translate((qreal)100, (qreal)100); painter.drawText(20, 20, "Horizontal text"); painter.rotate(-90.0); painter.drawText(0, 0, "Rotated text"); }
Note that this used to work with V4.7.2!
I believe that this is a problem in the following code:
3439 bool QRasterPaintEngine::supportsTransformations(qreal pixelSize, const QTransform &m) const 3440 { 3441 #if defined(Q_WS_MAC) || (defined(Q_OS_MAC) && defined(Q_WS_QPA)) 3442 // Mac font engines don't support scaling and rotation 3443 if (m.type() > QTransform::TxTranslate) 3444 #else 3445 if (m.type() >= QTransform::TxProject) 3446 #endif 3447 return true; 3448 3449 if (pixelSize * pixelSize * qAbs(m.determinant()) >= 64 * 64) 3450 return true; 3451 3452 return false; 3453 }
adding "|| defined(Q_WS_WINCE)" to line 3441 solves the problem.
Attachments
Gerrit Reviews
For Gerrit Dashboard: QTBUG-26347 | ||||||
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# | Subject | Branch | Project | Status | CR | V |
45554,1 | Fix crash when rotating text on WinCE (6) | 4.8 | qt/qt | Status: ABANDONED | -1 | 0 |