diff options
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativepath.cpp')
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativepath.cpp | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativepath.cpp b/src/declarative/graphicsitems/qdeclarativepath.cpp index 966c51b..48e3f66 100644 --- a/src/declarative/graphicsitems/qdeclarativepath.cpp +++ b/src/declarative/graphicsitems/qdeclarativepath.cpp @@ -1,6 +1,6 @@ /**************************************************************************** ** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** @@ -46,6 +46,8 @@ #include <QTime> #include <private/qbezier_p.h> +#include <QtCore/qmath.h> +#include <QtCore/qnumeric.h> QT_BEGIN_NAMESPACE @@ -367,9 +369,11 @@ void QDeclarativePath::createPointCache() const { Q_D(const QDeclarativePath); qreal pathLength = d->_path.length(); + if (pathLength <= 0 || qIsNaN(pathLength)) + return; // more points means less jitter between items as they move along the // path, but takes longer to generate - const int points = int(pathLength*5); + const int points = qCeil(pathLength*5); const int lastElement = d->_path.elementCount() - 1; d->_pointCache.resize(points+1); @@ -418,6 +422,8 @@ QPointF QDeclarativePath::pointAt(qreal p) const Q_D(const QDeclarativePath); if (d->_pointCache.isEmpty()) { createPointCache(); + if (d->_pointCache.isEmpty()) + return QPointF(); } int idx = qRound(p*d->_pointCache.size()); if (idx >= d->_pointCache.size()) @@ -839,7 +845,7 @@ void QDeclarativePathCubic::addToPath(QPainterPath &path) \o \qml PathView { - ... + // ... Path { startX: 20; startY: 0 PathQuad { x: 50; y: 80; controlX: 0; controlY: 80 } @@ -853,7 +859,7 @@ void QDeclarativePathCubic::addToPath(QPainterPath &path) \o \qml PathView { - ... + // ... Path { startX: 20; startY: 0 PathQuad { x: 50; y: 80; controlX: 0; controlY: 80 } @@ -886,7 +892,7 @@ void QDeclarativePathCubic::addToPath(QPainterPath &path) \qml PathView { - ... + // ... Path { startX: 0; startY: 0 PathLine { x:100; y: 0; } |