diff options
Diffstat (limited to 'src/gui/graphicsview/qgraphicsitem.cpp')
| -rw-r--r-- | src/gui/graphicsview/qgraphicsitem.cpp | 339 |
1 files changed, 99 insertions, 240 deletions
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp index 06f26a1..6770206 100644 --- a/src/gui/graphicsview/qgraphicsitem.cpp +++ b/src/gui/graphicsview/qgraphicsitem.cpp @@ -1197,6 +1197,13 @@ QGraphicsItem::~QGraphicsItem() else d_ptr->setParentItemHelper(0); + if (d_ptr->transformData) { + for(int i = 0; i < d_ptr->transformData->graphicsTransforms.size(); ++i) { + QGraphicsTransform *t = d_ptr->transformData->graphicsTransforms.at(i); + static_cast<QGraphicsTransformPrivate *>(t->d_ptr)->item = 0; + delete t; + } + } delete d_ptr->transformData; delete d_ptr; @@ -2980,94 +2987,19 @@ QTransform QGraphicsItem::transform() const /*! \since 4.6 - Returns the rotation around the X axis. - - The default is 0 - - \warning The value doesn't take in account any rotation set with - the setTransform() method. - - \sa setXRotation(), {Transformations} -*/ -qreal QGraphicsItem::xRotation() const -{ - if (!d_ptr->transformData) - return 0; - return d_ptr->transformData->xRotation; -} - -/*! - \since 4.6 - - Sets the rotation around the X axis to \a angle degrees. - - \warning The value doesn't take in account any rotation set with the setTransform() method. - - \sa xRotation(), setTransformOrigin(), {Transformations} -*/ -void QGraphicsItem::setXRotation(qreal angle) -{ - prepareGeometryChange(); - if (!d_ptr->transformData) - d_ptr->transformData = new QGraphicsItemPrivate::TransformData; - d_ptr->transformData->xRotation = angle; - d_ptr->transformData->onlyTransform = false; - d_ptr->dirtySceneTransform = 1; -} - -/*! - \since 4.6 - - Returns the rotation around the Y axis. - - The default is 0 - - \warning The value doesn't take in account any rotation set with the setTransform() method. - - \sa setYRotation(), {Transformations} -*/ -qreal QGraphicsItem::yRotation() const -{ - if (!d_ptr->transformData) - return 0; - return d_ptr->transformData->yRotation; -} - -/*! - \since 4.6 - - Sets the rotation around the Y axis to \a angle degrees. - - \warning The value doesn't take in account any rotation set with the setTransform() method. - - \sa yRotation(), setTransformOrigin() {Transformations} -*/ -void QGraphicsItem::setYRotation(qreal angle) -{ - prepareGeometryChange(); - if (!d_ptr->transformData) - d_ptr->transformData = new QGraphicsItemPrivate::TransformData; - d_ptr->transformData->yRotation = angle; - d_ptr->transformData->onlyTransform = false; - d_ptr->dirtySceneTransform = 1; -} - -/*! - \since 4.6 - Returns the rotation around the Z axis. The default is 0 \warning The value doesn't take in account any rotation set with the setTransform() method. - \sa setZRotation(), {Transformations} + \sa setRotation(), {Transformations} */ -qreal QGraphicsItem::zRotation() const +qreal QGraphicsItem::rotation() const { if (!d_ptr->transformData) return 0; - return d_ptr->transformData->zRotation; + return d_ptr->transformData->rotation; } /*! @@ -3077,224 +3009,107 @@ qreal QGraphicsItem::zRotation() const \warning The value doesn't take in account any rotation set with the setTransform() method. - \sa zRotation(), setTransformOrigin(), {Transformations} + \sa rotation(), setTransformOriginPoint(), {Transformations} */ -void QGraphicsItem::setZRotation(qreal angle) +void QGraphicsItem::setRotation(qreal angle) { prepareGeometryChange(); if (!d_ptr->transformData) d_ptr->transformData = new QGraphicsItemPrivate::TransformData; - d_ptr->transformData->zRotation = angle; + d_ptr->transformData->rotation = angle; d_ptr->transformData->onlyTransform = false; d_ptr->dirtySceneTransform = 1; -} - -/*! - \since 4.6 - This convenience function set the rotation angles around the 3 axes - to \a x, \a y and \a z. - - \sa setXRotation(), setYRotation(), setZRotation(), {Transformations} -*/ -void QGraphicsItem::setRotation(qreal x, qreal y, qreal z) -{ - prepareGeometryChange(); - if (!d_ptr->transformData) - d_ptr->transformData = new QGraphicsItemPrivate::TransformData; - d_ptr->transformData->xRotation = x; - d_ptr->transformData->yRotation = y; - d_ptr->transformData->zRotation = z; - d_ptr->transformData->onlyTransform = false; - d_ptr->dirtySceneTransform = 1; + if (d_ptr->isObject) + emit static_cast<QGraphicsObject *>(this)->rotationChanged(); } /*! \since 4.6 - Returns the scale factor on the X axis. + Returns the scale factor of the item. The default is 1 \warning The value doesn't take in account any scaling set with the setTransform() method. - \sa setXScale(), {Transformations} + \sa setScale(), {Transformations} */ -qreal QGraphicsItem::xScale() const +qreal QGraphicsItem::scale() const { if (!d_ptr->transformData) - return 1; - return d_ptr->transformData->xScale; + return 1.; + return d_ptr->transformData->scale; } /*! \since 4.6 - Sets the scale factor on the X axis to \a factor. + Sets the scale factor of the item to \a factor. \warning The value doesn't take in account any scaling set with the setTransform() method. - \sa xScale(), setTransformOrigin(), {Transformations} + \sa scale(), setTransformOriginPoint(), {Transformations} */ -void QGraphicsItem::setXScale(qreal factor) +void QGraphicsItem::setScale(qreal factor) { prepareGeometryChange(); if (!d_ptr->transformData) d_ptr->transformData = new QGraphicsItemPrivate::TransformData; - d_ptr->transformData->xScale = factor; + d_ptr->transformData->scale = factor; d_ptr->transformData->onlyTransform = false; d_ptr->dirtySceneTransform = 1; -} - -/*! - \since 4.6 - - Returns the scale factor on the Y axis. - - The default is 1 - - \warning The value doesn't take in account any scaling set with the setTransform() method. - - \sa setYScale(), {Transformations} -*/ -qreal QGraphicsItem::yScale() const -{ - if (!d_ptr->transformData) - return 1; - return d_ptr->transformData->yScale; -} - -/*! - \since 4.6 - - Sets the scale factor on the Y axis to \a factor. - \warning The value doesn't take in account any scaling set with the setTransform() method. - - \sa yScale(), setTransformOrigin(), {Transformations} -*/ -void QGraphicsItem::setYScale(qreal factor) -{ - prepareGeometryChange(); - if (!d_ptr->transformData) - d_ptr->transformData = new QGraphicsItemPrivate::TransformData; - d_ptr->transformData->yScale = factor; - d_ptr->transformData->onlyTransform = false; - d_ptr->dirtySceneTransform = 1; + if (d_ptr->isObject) + emit static_cast<QGraphicsObject *>(this)->scaleChanged(); } -/*! - \since 4.6 - - This convenience function set the scaling factors on X and Y axis to \a sx and \a sy. - - \warning The value doesn't take in account any scaling set with the setTransform() method. - - \sa setXScale(), setYScale(), {Transformations} -*/ -void QGraphicsItem::setScale(qreal sx, qreal sy) -{ - prepareGeometryChange(); - if (!d_ptr->transformData) - d_ptr->transformData = new QGraphicsItemPrivate::TransformData; - d_ptr->transformData->xScale = sx; - d_ptr->transformData->yScale = sy; - d_ptr->transformData->onlyTransform = false; - d_ptr->dirtySceneTransform = 1; -} /*! \since 4.6 - Returns the horizontal shear. - - The default is 0 - - \warning The value doesn't take in account any shearing set with the setTransform() method. + returns list of graphics transformations on the item. - \sa setHorizontalShear(), {Transformations} + \sa scale(), setTransformOriginPoint(), {Transformations} */ -qreal QGraphicsItem::horizontalShear() const +QList<QGraphicsTransform *> QGraphicsItem::transformations() const { if (!d_ptr->transformData) - return 0; - return d_ptr->transformData->horizontalShear; + return QList<QGraphicsTransform *>(); + return d_ptr->transformData->graphicsTransforms; } /*! \since 4.6 - Sets the horizontal shear to \a shear. - - \warning The value doesn't take in account any shearing set with the setTransform() method. + Sets a list of graphics transformations on the item to \a transformations. - \sa horizontalShear(), {Transformations} + \sa scale(), setTransformOriginPoint(), {Transformations} */ -void QGraphicsItem::setHorizontalShear(qreal shear) +void QGraphicsItem::setTransformations(const QList<QGraphicsTransform *> &transformations) { prepareGeometryChange(); if (!d_ptr->transformData) d_ptr->transformData = new QGraphicsItemPrivate::TransformData; - d_ptr->transformData->horizontalShear = shear; + d_ptr->transformData->graphicsTransforms = transformations; + for (int i = 0; i < transformations.size(); ++i) + transformations.at(i)->d_func()->setItem(this); d_ptr->transformData->onlyTransform = false; d_ptr->dirtySceneTransform = 1; } -/*! - \since 4.6 - - Returns the vertical shear. - - The default is 0 - - \warning The value doesn't take in account any shearing set with the setTransform() method. - \sa setHorizontalShear(), {Transformations} -*/ -qreal QGraphicsItem::verticalShear() const +void QGraphicsItemPrivate::appendGraphicsTransform(QGraphicsTransform *t) { - if (!d_ptr->transformData) - return 0; - return d_ptr->transformData->verticalShear; -} + if (!transformData) + transformData = new QGraphicsItemPrivate::TransformData; + if (!transformData->graphicsTransforms.contains(t)) + transformData->graphicsTransforms.append(t); -/*! - \since 4.6 - - Sets the vertical shear to \a shear. - - \warning The value doesn't take in account any shearing set with the setTransform() method. - - \sa verticalShear(), {Transformations} -*/ -void QGraphicsItem::setVerticalShear(qreal shear) -{ - prepareGeometryChange(); - if (!d_ptr->transformData) - d_ptr->transformData = new QGraphicsItemPrivate::TransformData; - d_ptr->transformData->verticalShear = shear; - d_ptr->transformData->onlyTransform = false; - d_ptr->dirtySceneTransform = 1; -} - -/*! - \since 4.6 - - This convenience function sets the horizontal shear to \a sh and the vertical shear to \a sv. - - \warning The value doesn't take in account any shearing set with the setTransform() method. - - \sa setHorizontalShear(), setVerticalShear() -*/ -void QGraphicsItem::setShear(qreal sh, qreal sv) -{ - prepareGeometryChange(); - if (!d_ptr->transformData) - d_ptr->transformData = new QGraphicsItemPrivate::TransformData; - d_ptr->transformData->horizontalShear = sh; - d_ptr->transformData->verticalShear = sv; - d_ptr->transformData->onlyTransform = false; - d_ptr->dirtySceneTransform = 1; + Q_Q(QGraphicsItem); + t->d_func()->setItem(q); + transformData->onlyTransform = false; + dirtySceneTransform = 1; } /*! @@ -3304,9 +3119,9 @@ void QGraphicsItem::setShear(qreal sh, qreal sv) The default is QPointF(0,0). - \sa setTransformOrigin(), {Transformations} + \sa setTransformOriginPoint(), {Transformations} */ -QPointF QGraphicsItem::transformOrigin() const +QPointF QGraphicsItem::transformOriginPoint() const { if (!d_ptr->transformData) return QPointF(0,0); @@ -3318,9 +3133,9 @@ QPointF QGraphicsItem::transformOrigin() const Sets the \a origin point for the transformation in item coordinates. - \sa transformOrigin(), {Transformations} + \sa transformOriginPoint(), {Transformations} */ -void QGraphicsItem::setTransformOrigin(const QPointF &origin) +void QGraphicsItem::setTransformOriginPoint(const QPointF &origin) { prepareGeometryChange(); if (!d_ptr->transformData) @@ -3332,15 +3147,15 @@ void QGraphicsItem::setTransformOrigin(const QPointF &origin) } /*! - \fn void QGraphicsItem::setTransformOrigin(qreal x, qreal y) + \fn void QGraphicsItem::setTransformOriginPoint(qreal x, qreal y) \since 4.6 \overload Sets the origin point for the transformation in item coordinates. - This is equivalent to calling setTransformOrigin(QPointF(\a x, \a y)). + This is equivalent to calling setTransformOriginPoint(QPointF(\a x, \a y)). - \sa setTransformOrigin(), {Transformations} + \sa setTransformOriginPoint(), {Transformations} */ @@ -3619,7 +3434,7 @@ void QGraphicsItem::setMatrix(const QMatrix &matrix, bool combine) \warning using this function doesnt affect the value of the transformation properties - \sa transform(), setRotation(), setScale(), setShear(), setTransformOrigin(), {The Graphics View Coordinate System}, {Transformations} + \sa transform(), setRotation(), setScale(), setTransformOriginPoint(), {The Graphics View Coordinate System}, {Transformations} */ void QGraphicsItem::setTransform(const QTransform &matrix, bool combine) { @@ -3733,7 +3548,7 @@ void QGraphicsItem::shear(qreal sh, qreal sv) /*! \obsolete - Use setPos() or setTransformOrigin() instead. + Use setPos() or setTransformOriginPoint() instead. Translates the current item transformation by (\a dx, \a dy). @@ -6857,6 +6672,41 @@ QGraphicsObject::QGraphicsObject(QGraphicsItemPrivate &dd, QGraphicsItem *parent \sa pos() */ +/*! + \property QGraphicsObject::rotation + This property holds the rotation of the item in degrees. + + This specifies how many degrees to rotate the item around its transformOrigin. + The default rotation is 0 degrees (i.e. not rotated at all). +*/ + +/*! + \fn QGraphicsObject::rotationChanged() + + This signal gets emitted whenever the roation of the item changes. +*/ + +/*! + \property QGraphicsObject::scale + This property holds the scale of the item. + + A scale of less than 1 means the item will be displayed smaller than + normal, and a scale of greater than 1 means the item will be + displayed larger than normal. A negative scale means the item will + be mirrored. + + By default, items are displayed at a scale of 1 (i.e. at their + normal size). + + Scaling is from the item's transformOrigin. +*/ + +/*! + \fn void QGraphicsObject::scaleChanged() + + This signal is emitted when the scale of the item changes. +*/ + /*! \property QGraphicsObject::enabled @@ -6896,6 +6746,15 @@ QGraphicsObject::QGraphicsObject(QGraphicsItemPrivate &dd, QGraphicsItem *parent \sa visible */ +/*! + \property QGraphicsObject::transformOriginPoint + \brief the transformation origin + + This property sets a specific point in the items coordiante system as the + origin for scale and rotation. + + \sa scale, rotation, QGraphicsItem::transformOriginPoint() +*/ /*! |