diff options
Diffstat (limited to 'src/gui/graphicsview/qgraphicstransform.cpp')
| -rw-r--r-- | src/gui/graphicsview/qgraphicstransform.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/gui/graphicsview/qgraphicstransform.cpp b/src/gui/graphicsview/qgraphicstransform.cpp index ec1a2f5..83bc9e1 100644 --- a/src/gui/graphicsview/qgraphicstransform.cpp +++ b/src/gui/graphicsview/qgraphicstransform.cpp @@ -69,6 +69,9 @@ objects are applied to a QGraphicsItem, all of the transformations are computed in true 3D space, with the projection back to 2D only occurring after the last QGraphicsTransform is applied. + The exception to this is QGraphicsRotation, which projects back to + 2D after each rotation to preserve the perspective effect around + the X and Y axes. If you want to create your own configurable transformation, you can create a subclass of QGraphicsTransform (or any or the existing subclasses), and @@ -90,8 +93,8 @@ #include <QDebug> #include <QtCore/qmath.h> +#ifndef QT_NO_GRAPHICSVIEW QT_BEGIN_NAMESPACE - void QGraphicsTransformPrivate::setItem(QGraphicsItem *i) { if (item == i) @@ -547,7 +550,7 @@ void QGraphicsRotation::applyTo(QMatrix4x4 *matrix) const return; matrix->translate(d->origin); - matrix->rotate(d->angle, d->axis.x(), d->axis.y(), d->axis.z()); + matrix->projectedRotate(d->angle, d->axis.x(), d->axis.y(), d->axis.z()); matrix->translate(-d->origin); } @@ -562,3 +565,4 @@ void QGraphicsRotation::applyTo(QMatrix4x4 *matrix) const #include "moc_qgraphicstransform.cpp" QT_END_NAMESPACE +#endif //QT_NO_GRAPHICSVIEW |