diff options
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativeitem.cpp')
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativeitem.cpp | 700 |
1 files changed, 450 insertions, 250 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativeitem.cpp b/src/declarative/graphicsitems/qdeclarativeitem.cpp index 096e4bf982..42b370bb2d 100644 --- a/src/declarative/graphicsitems/qdeclarativeitem.cpp +++ b/src/declarative/graphicsitems/qdeclarativeitem.cpp @@ -86,8 +86,8 @@ QT_BEGIN_NAMESPACE The Transform elements let you create and control advanced transformations that can be configured independently using specialized properties. - You can assign any number of Transform elements to an Item. Each Transform is applied in order, - one at a time, to the Item it's assigned to. + You can assign any number of Transform elements to an \l Item. Each Transform is applied in order, + one at a time. */ /*! @@ -97,9 +97,11 @@ QT_BEGIN_NAMESPACE The Translate object provides independent control over position in addition to the Item's x and y properties. - The following example moves the Y axis of the Rectangles while still allowing the Row element + The following example moves the Y axis of the \l Rectangle elements while still allowing the \l Row element to lay the items out as if they had not been transformed: \qml + import Qt 4.7 + Row { Rectangle { width: 100; height: 100 @@ -113,6 +115,8 @@ QT_BEGIN_NAMESPACE } } \endqml + + \image translate.png */ /*! @@ -130,9 +134,9 @@ QT_BEGIN_NAMESPACE /*! \qmlclass Scale QGraphicsScale \since 4.7 - \brief The Scale object provides a way to scale an Item. + \brief The Scale element provides a way to scale an Item. - The Scale object gives more control over scaling than using Item's scale property. Specifically, + The Scale element gives more control over scaling than using \l Item's \l{Item::scale}{scale} property. Specifically, it allows a different scale for the x and y axes, and allows the scale to be relative to an arbitrary point. @@ -144,6 +148,8 @@ QT_BEGIN_NAMESPACE transform: Scale { origin.x: 25; origin.y: 25; xScale: 3} } \endqml + + \sa Rotate, Translate */ /*! @@ -171,7 +177,7 @@ QT_BEGIN_NAMESPACE \since 4.7 \brief The Rotation object provides a way to rotate an Item. - The Rotation object gives more control over rotation than using Item's rotation property. + The Rotation object gives more control over rotation than using \l Item's \l{Item::rotation}{rotation} property. Specifically, it allows (z axis) rotation to be relative to an arbitrary point. The following example rotates a Rectangle around its interior point 25, 25: @@ -219,52 +225,27 @@ QT_BEGIN_NAMESPACE The angle to rotate, in degrees clockwise. */ - -/*! - \group group_animation - \title Animation -*/ - -/*! - \group group_coreitems - \title Basic Items -*/ - -/*! - \group group_layouts - \title Layouts -*/ - -/*! - \group group_states - \title States and Transitions -*/ - -/*! - \group group_utility - \title Utility -*/ - -/*! - \group group_views - \title Views -*/ - -/*! - \group group_widgets - \title Widgets -*/ - /*! \internal \class QDeclarativeContents - \ingroup group_utility \brief The QDeclarativeContents class gives access to the height and width of an item's contents. */ +QDeclarativeContents::QDeclarativeContents(QDeclarativeItem *item) : m_item(item), m_x(0), m_y(0), m_width(0), m_height(0) +{ + //### optimize + connect(this, SIGNAL(rectChanged(QRectF)), m_item, SIGNAL(childrenRectChanged(QRectF))); +} -QDeclarativeContents::QDeclarativeContents() : m_x(0), m_y(0), m_width(0), m_height(0) +QDeclarativeContents::~QDeclarativeContents() { + QList<QGraphicsItem *> children = m_item->childItems(); + for (int i = 0; i < children.count(); ++i) { + QDeclarativeItem *child = qobject_cast<QDeclarativeItem *>(children.at(i)); + if(!child)//### Should this be ignoring non-QDeclarativeItem graphicsobjects? + continue; + QDeclarativeItemPrivate::get(child)->removeItemChangeListener(this, QDeclarativeItemPrivate::Geometry | QDeclarativeItemPrivate::Destroyed); + } } QRectF QDeclarativeContents::rectF() const @@ -272,84 +253,128 @@ QRectF QDeclarativeContents::rectF() const return QRectF(m_x, m_y, m_width, m_height); } -//TODO: optimization: only check sender(), if there is one -void QDeclarativeContents::calcHeight() +void QDeclarativeContents::calcHeight(QDeclarativeItem *changed) { qreal oldy = m_y; qreal oldheight = m_height; - qreal top = FLT_MAX; - qreal bottom = 0; - - QList<QGraphicsItem *> children = m_item->childItems(); - for (int i = 0; i < children.count(); ++i) { - QDeclarativeItem *child = qobject_cast<QDeclarativeItem *>(children.at(i)); - if(!child)//### Should this be ignoring non-QDeclarativeItem graphicsobjects? - continue; - qreal y = child->y(); - if (y + child->height() > bottom) - bottom = y + child->height(); + if (changed) { + qreal top = oldy; + qreal bottom = oldy + oldheight; + qreal y = changed->y(); + if (y + changed->height() > bottom) + bottom = y + changed->height(); if (y < top) top = y; - } - if (!children.isEmpty()) m_y = top; - m_height = qMax(bottom - top, qreal(0.0)); + m_height = bottom - top; + } else { + qreal top = FLT_MAX; + qreal bottom = 0; + QList<QGraphicsItem *> children = m_item->childItems(); + for (int i = 0; i < children.count(); ++i) { + QDeclarativeItem *child = qobject_cast<QDeclarativeItem *>(children.at(i)); + if(!child)//### Should this be ignoring non-QDeclarativeItem graphicsobjects? + continue; + qreal y = child->y(); + if (y + child->height() > bottom) + bottom = y + child->height(); + if (y < top) + top = y; + } + if (!children.isEmpty()) + m_y = top; + m_height = qMax(bottom - top, qreal(0.0)); + } if (m_height != oldheight || m_y != oldy) emit rectChanged(rectF()); } -//TODO: optimization: only check sender(), if there is one -void QDeclarativeContents::calcWidth() +void QDeclarativeContents::calcWidth(QDeclarativeItem *changed) { qreal oldx = m_x; qreal oldwidth = m_width; - qreal left = FLT_MAX; - qreal right = 0; - - QList<QGraphicsItem *> children = m_item->childItems(); - for (int i = 0; i < children.count(); ++i) { - QDeclarativeItem *child = qobject_cast<QDeclarativeItem *>(children.at(i)); - if(!child)//### Should this be ignoring non-QDeclarativeItem graphicsobjects? - continue; - qreal x = child->x(); - if (x + child->width() > right) - right = x + child->width(); + if (changed) { + qreal left = oldx; + qreal right = oldx + oldwidth; + qreal x = changed->x(); + if (x + changed->width() > right) + right = x + changed->width(); if (x < left) left = x; - } - if (!children.isEmpty()) m_x = left; - m_width = qMax(right - left, qreal(0.0)); + m_width = right - left; + } else { + qreal left = FLT_MAX; + qreal right = 0; + QList<QGraphicsItem *> children = m_item->childItems(); + for (int i = 0; i < children.count(); ++i) { + QDeclarativeItem *child = qobject_cast<QDeclarativeItem *>(children.at(i)); + if(!child)//### Should this be ignoring non-QDeclarativeItem graphicsobjects? + continue; + qreal x = child->x(); + if (x + child->width() > right) + right = x + child->width(); + if (x < left) + left = x; + } + if (!children.isEmpty()) + m_x = left; + m_width = qMax(right - left, qreal(0.0)); + } if (m_width != oldwidth || m_x != oldx) emit rectChanged(rectF()); } -void QDeclarativeContents::setItem(QDeclarativeItem *item) +void QDeclarativeContents::complete() { - m_item = item; - QList<QGraphicsItem *> children = m_item->childItems(); for (int i = 0; i < children.count(); ++i) { QDeclarativeItem *child = qobject_cast<QDeclarativeItem *>(children.at(i)); if(!child)//### Should this be ignoring non-QDeclarativeItem graphicsobjects? continue; - connect(child, SIGNAL(heightChanged()), this, SLOT(calcHeight())); - connect(child, SIGNAL(yChanged()), this, SLOT(calcHeight())); - connect(child, SIGNAL(widthChanged()), this, SLOT(calcWidth())); - connect(child, SIGNAL(xChanged()), this, SLOT(calcWidth())); - connect(this, SIGNAL(rectChanged(QRectF)), m_item, SIGNAL(childrenRectChanged(QRectF))); + QDeclarativeItemPrivate::get(child)->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry | QDeclarativeItemPrivate::Destroyed); + //###what about changes to visibility? } - calcHeight(); - calcWidth(); + calcGeometry(); +} + +void QDeclarativeContents::itemGeometryChanged(QDeclarativeItem *changed, const QRectF &newGeometry, const QRectF &oldGeometry) +{ + if (newGeometry.width() != oldGeometry.width()) + calcWidth(changed); + if (newGeometry.height() != oldGeometry.height()) + calcHeight(changed); +} + +void QDeclarativeContents::itemDestroyed(QDeclarativeItem *item) +{ + if (item) + QDeclarativeItemPrivate::get(item)->removeItemChangeListener(this, QDeclarativeItemPrivate::Geometry | QDeclarativeItemPrivate::Destroyed); + calcGeometry(); +} + +void QDeclarativeContents::childRemoved(QDeclarativeItem *item) +{ + if (item) + QDeclarativeItemPrivate::get(item)->removeItemChangeListener(this, QDeclarativeItemPrivate::Geometry | QDeclarativeItemPrivate::Destroyed); + calcGeometry(); +} + +void QDeclarativeContents::childAdded(QDeclarativeItem *item) +{ + if (item) + QDeclarativeItemPrivate::get(item)->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry | QDeclarativeItemPrivate::Destroyed); + calcWidth(item); + calcHeight(item); } QDeclarativeItemKeyFilter::QDeclarativeItemKeyFilter(QDeclarativeItem *item) -: m_next(0) +: m_processPost(false), m_next(0) { QDeclarativeItemPrivate *p = item?static_cast<QDeclarativeItemPrivate *>(QGraphicsItemPrivate::get(item)):0; @@ -363,19 +388,19 @@ QDeclarativeItemKeyFilter::~QDeclarativeItemKeyFilter() { } -void QDeclarativeItemKeyFilter::keyPressed(QKeyEvent *event) +void QDeclarativeItemKeyFilter::keyPressed(QKeyEvent *event, bool post) { - if (m_next) m_next->keyPressed(event); + if (m_next) m_next->keyPressed(event, post); } -void QDeclarativeItemKeyFilter::keyReleased(QKeyEvent *event) +void QDeclarativeItemKeyFilter::keyReleased(QKeyEvent *event, bool post) { - if (m_next) m_next->keyReleased(event); + if (m_next) m_next->keyReleased(event, post); } -void QDeclarativeItemKeyFilter::inputMethodEvent(QInputMethodEvent *event) +void QDeclarativeItemKeyFilter::inputMethodEvent(QInputMethodEvent *event, bool post) { - if (m_next) m_next->inputMethodEvent(event); + if (m_next) m_next->inputMethodEvent(event, post); } QVariant QDeclarativeItemKeyFilter::inputMethodQuery(Qt::InputMethodQuery query) const @@ -437,14 +462,16 @@ void QDeclarativeItemKeyFilter::componentComplete() } \endcode - KeyNavigation receives key events after the item it is attached to. + By default KeyNavigation receives key events after the item it is attached to. If the item accepts an arrow key event, the KeyNavigation - attached property will not receive an event for that key. + attached property will not receive an event for that key. Setting the + \l priority property to KeyNavigation.BeforeItem allows handling + of the key events before normal item processing. If an item has been set for a direction and the KeyNavigation attached property receives the corresponding key press and release events, the events will be accepted by - KeyNaviagtion and will not propagate any further. + KeyNavigation and will not propagate any further. \sa {Keys}{Keys attached property} */ @@ -464,6 +491,7 @@ QDeclarativeKeyNavigationAttached::QDeclarativeKeyNavigationAttached(QObject *pa : QObject(*(new QDeclarativeKeyNavigationAttachedPrivate), parent), QDeclarativeItemKeyFilter(qobject_cast<QDeclarativeItem*>(parent)) { + m_processPost = true; } QDeclarativeKeyNavigationAttached * @@ -550,12 +578,45 @@ void QDeclarativeKeyNavigationAttached::setBacktab(QDeclarativeItem *i) emit changed(); } -void QDeclarativeKeyNavigationAttached::keyPressed(QKeyEvent *event) +/*! + \qmlproperty enumeration KeyNavigation::priority + + This property determines whether the keys are processed before + or after the attached item's own key handling. + + \list + \o KeyNavigation.BeforeItem - process the key events before normal + item key processing. If the event is accepted it will not + be passed on to the item. + \o KeyNavigation.AfterItem (default) - process the key events after normal item key + handling. If the item accepts the key event it will not be + handled by the KeyNavigation attached property handler. + \endlist +*/ +QDeclarativeKeyNavigationAttached::Priority QDeclarativeKeyNavigationAttached::priority() const { - Q_D(QDeclarativeKeyNavigationAttached); + return m_processPost ? AfterItem : BeforeItem; +} + +void QDeclarativeKeyNavigationAttached::setPriority(Priority order) +{ + bool processPost = order == AfterItem; + if (processPost != m_processPost) { + m_processPost = processPost; + emit priorityChanged(); + } +} +void QDeclarativeKeyNavigationAttached::keyPressed(QKeyEvent *event, bool post) +{ + Q_D(QDeclarativeKeyNavigationAttached); event->ignore(); + if (post != m_processPost) { + QDeclarativeItemKeyFilter::keyPressed(event, post); + return; + } + switch(event->key()) { case Qt::Key_Left: if (d->left) { @@ -597,15 +658,19 @@ void QDeclarativeKeyNavigationAttached::keyPressed(QKeyEvent *event) break; } - if (!event->isAccepted()) QDeclarativeItemKeyFilter::keyPressed(event); + if (!event->isAccepted()) QDeclarativeItemKeyFilter::keyPressed(event, post); } -void QDeclarativeKeyNavigationAttached::keyReleased(QKeyEvent *event) +void QDeclarativeKeyNavigationAttached::keyReleased(QKeyEvent *event, bool post) { Q_D(QDeclarativeKeyNavigationAttached); - event->ignore(); + if (post != m_processPost) { + QDeclarativeItemKeyFilter::keyReleased(event, post); + return; + } + switch(event->key()) { case Qt::Key_Left: if (d->left) { @@ -641,7 +706,7 @@ void QDeclarativeKeyNavigationAttached::keyReleased(QKeyEvent *event) break; } - if (!event->isAccepted()) QDeclarativeItemKeyFilter::keyReleased(event); + if (!event->isAccepted()) QDeclarativeItemKeyFilter::keyReleased(event, post); } /*! @@ -656,7 +721,7 @@ void QDeclarativeKeyNavigationAttached::keyReleased(QKeyEvent *event) The signal properties have a \l KeyEvent parameter, named \e event which contains details of the event. If a key is handled \e event.accepted should be set to true to prevent the - event from propagating up the item heirarchy. + event from propagating up the item hierarchy. \code Item { @@ -683,6 +748,28 @@ void QDeclarativeKeyNavigationAttached::keyReleased(QKeyEvent *event) See \l {Qt::Key}{Qt.Key} for the list of keyboard codes. + If priority is Keys.BeforeItem (default) the order of key event processing is: + + \list 1 + \o Items specified in \c forwardTo + \o specific key handlers, e.g. onReturnPressed + \o onKeyPress, onKeyRelease handlers + \o Item specific key handling, e.g. TextInput key handling + \o parent item + \endlist + + If priority is Keys.AfterItem the order of key event processing is: + \list 1 + \o Item specific key handling, e.g. TextInput key handling + \o Items specified in \c forwardTo + \o specific key handlers, e.g. onReturnPressed + \o onKeyPress, onKeyRelease handlers + \o parent item + \endlist + + If the event is accepted during any of the above steps, key + propagation stops. + \sa KeyEvent, {KeyNavigation}{KeyNavigation attached property} */ @@ -694,7 +781,23 @@ void QDeclarativeKeyNavigationAttached::keyReleased(QKeyEvent *event) */ /*! - \qmlproperty List<Object> Keys::forwardTo + \qmlproperty enumeration Keys::priority + + This property determines whether the keys are processed before + or after the attached item's own key handling. + + \list + \o Keys.BeforeItem (default) - process the key events before normal + item key processing. If the event is accepted it will not + be passed on to the item. + \o Keys.AfterItem - process the key events after normal item key + handling. If the item accepts the key event it will not be + handled by the Keys attached property handler. + \endlist +*/ + +/*! + \qmlproperty list<Object> Keys::forwardTo This property provides a way to forward key presses, key releases, and keyboard input coming from input methods to other items. This can be useful when you want @@ -1013,6 +1116,7 @@ QDeclarativeKeysAttached::QDeclarativeKeysAttached(QObject *parent) QDeclarativeItemKeyFilter(qobject_cast<QDeclarativeItem*>(parent)) { Q_D(QDeclarativeKeysAttached); + m_processPost = false; d->item = qobject_cast<QDeclarativeItem*>(parent); } @@ -1020,6 +1124,20 @@ QDeclarativeKeysAttached::~QDeclarativeKeysAttached() { } +QDeclarativeKeysAttached::Priority QDeclarativeKeysAttached::priority() const +{ + return m_processPost ? AfterItem : BeforeItem; +} + +void QDeclarativeKeysAttached::setPriority(Priority order) +{ + bool processPost = order == AfterItem; + if (processPost != m_processPost) { + m_processPost = processPost; + emit priorityChanged(); + } +} + void QDeclarativeKeysAttached::componentComplete() { Q_D(QDeclarativeKeysAttached); @@ -1034,11 +1152,12 @@ void QDeclarativeKeysAttached::componentComplete() } } -void QDeclarativeKeysAttached::keyPressed(QKeyEvent *event) +void QDeclarativeKeysAttached::keyPressed(QKeyEvent *event, bool post) { Q_D(QDeclarativeKeysAttached); - if (!d->enabled || d->inPress) { + if (post != m_processPost || !d->enabled || d->inPress) { event->ignore(); + QDeclarativeItemKeyFilter::keyPressed(event, post); return; } @@ -1073,14 +1192,15 @@ void QDeclarativeKeysAttached::keyPressed(QKeyEvent *event) emit pressed(&ke); event->setAccepted(ke.isAccepted()); - if (!event->isAccepted()) QDeclarativeItemKeyFilter::keyPressed(event); + if (!event->isAccepted()) QDeclarativeItemKeyFilter::keyPressed(event, post); } -void QDeclarativeKeysAttached::keyReleased(QKeyEvent *event) +void QDeclarativeKeysAttached::keyReleased(QKeyEvent *event, bool post) { Q_D(QDeclarativeKeysAttached); - if (!d->enabled || d->inRelease) { + if (post != m_processPost || !d->enabled || d->inRelease) { event->ignore(); + QDeclarativeItemKeyFilter::keyReleased(event, post); return; } @@ -1103,13 +1223,13 @@ void QDeclarativeKeysAttached::keyReleased(QKeyEvent *event) emit released(&ke); event->setAccepted(ke.isAccepted()); - if (!event->isAccepted()) QDeclarativeItemKeyFilter::keyReleased(event); + if (!event->isAccepted()) QDeclarativeItemKeyFilter::keyReleased(event, post); } -void QDeclarativeKeysAttached::inputMethodEvent(QInputMethodEvent *event) +void QDeclarativeKeysAttached::inputMethodEvent(QInputMethodEvent *event, bool post) { Q_D(QDeclarativeKeysAttached); - if (d->item && !d->inIM && d->item->scene()) { + if (post == m_processPost && d->item && !d->inIM && d->item->scene()) { d->inIM = true; for (int ii = 0; ii < d->targets.count(); ++ii) { QGraphicsItem *i = d->finalFocusProxy(d->targets.at(ii)); @@ -1124,7 +1244,7 @@ void QDeclarativeKeysAttached::inputMethodEvent(QInputMethodEvent *event) } d->inIM = false; } - if (!event->isAccepted()) QDeclarativeItemKeyFilter::inputMethodEvent(event); + if (!event->isAccepted()) QDeclarativeItemKeyFilter::inputMethodEvent(event, post); } class QDeclarativeItemAccessor : public QGraphicsItem @@ -1168,7 +1288,10 @@ QDeclarativeKeysAttached *QDeclarativeKeysAttached::qmlAttachedProperties(QObjec width and height, \l {anchor-layout}{anchoring} and key handling. You can subclass QDeclarativeItem to provide your own custom visual item that inherits - these features. + these features. Note that, because it does not draw anything, QDeclarativeItem sets the + QGraphicsItem::ItemHasNoContents flag. If you subclass QDeclarativeItem to create a visual + item, you will need to unset this flag. + */ /*! @@ -1258,8 +1381,6 @@ QDeclarativeKeysAttached *QDeclarativeKeysAttached::qmlAttachedProperties(QObjec changes. For many properties in Item or Item derivatives this can be used to add a touch of imperative logic to your application (when absolutely necessary). - - \ingroup group_coreitems */ /*! @@ -1388,6 +1509,7 @@ QDeclarativeItem::~QDeclarativeItem() delete d->_anchorLines; d->_anchorLines = 0; delete d->_anchors; d->_anchors = 0; delete d->_stateGroup; d->_stateGroup = 0; + delete d->_contents; d->_contents = 0; } /*! @@ -1407,7 +1529,7 @@ QDeclarativeItem::~QDeclarativeItem() } \endqml - The default transform origin is \c Center. + The default transform origin is \c Item.Center. */ /*! @@ -1472,11 +1594,6 @@ QDeclarativeItem *QDeclarativeItem::parentItem() const */ /*! - \property QDeclarativeItem::resources - \internal -*/ - -/*! Returns true if construction of the QML component is complete; otherwise returns false. @@ -1491,18 +1608,6 @@ bool QDeclarativeItem::isComponentComplete() const return d->_componentComplete; } -/*! - \property QDeclarativeItem::anchors - \internal -*/ - -/*! \internal */ -QDeclarativeAnchors *QDeclarativeItem::anchors() -{ - Q_D(QDeclarativeItem); - return d->anchors(); -} - void QDeclarativeItemPrivate::data_append(QDeclarativeListProperty<QObject> *prop, QObject *o) { if (!o) @@ -1523,7 +1628,7 @@ void QDeclarativeItemPrivate::data_append(QDeclarativeListProperty<QObject> *pro QObject *QDeclarativeItemPrivate::resources_at(QDeclarativeListProperty<QObject> *prop, int index) { - QObjectList children = prop->object->children(); + const QObjectList children = prop->object->children(); if (index < children.count()) return children.at(index); else @@ -1624,30 +1729,25 @@ void QDeclarativeItemPrivate::parentProperty(QObject *o, void *rv, QDeclarativeN specify it. */ -/*! - \property QDeclarativeItem::data - \internal -*/ - /*! \internal */ -QDeclarativeListProperty<QObject> QDeclarativeItem::data() +QDeclarativeListProperty<QObject> QDeclarativeItemPrivate::data() { - return QDeclarativeListProperty<QObject>(this, 0, QDeclarativeItemPrivate::data_append); + return QDeclarativeListProperty<QObject>(q_func(), 0, QDeclarativeItemPrivate::data_append); } /*! \property QDeclarativeItem::childrenRect \brief The geometry of an item's children. - childrenRect provides an easy way to access the (collective) position and size of the item's children. + This property holds the (collective) position and size of the item's children. */ QRectF QDeclarativeItem::childrenRect() { Q_D(QDeclarativeItem); if (!d->_contents) { - d->_contents = new QDeclarativeContents; - QDeclarative_setParent_noEvent(d->_contents, this); - d->_contents->setItem(this); + d->_contents = new QDeclarativeContents(this); + if (d->_componentComplete) + d->_contents->complete(); } return d->_contents->rectF(); } @@ -1817,8 +1917,11 @@ void QDeclarativeItemPrivate::removeItemChangeListener(QDeclarativeItemChangeLis void QDeclarativeItem::keyPressEvent(QKeyEvent *event) { Q_D(QDeclarativeItem); + keyPressPreHandler(event); + if (event->isAccepted()) + return; if (d->keyHandler) - d->keyHandler->keyPressed(event); + d->keyHandler->keyPressed(event, true); else event->ignore(); } @@ -1827,8 +1930,11 @@ void QDeclarativeItem::keyPressEvent(QKeyEvent *event) void QDeclarativeItem::keyReleaseEvent(QKeyEvent *event) { Q_D(QDeclarativeItem); + keyReleasePreHandler(event); + if (event->isAccepted()) + return; if (d->keyHandler) - d->keyHandler->keyReleased(event); + d->keyHandler->keyReleased(event, true); else event->ignore(); } @@ -1837,8 +1943,11 @@ void QDeclarativeItem::keyReleaseEvent(QKeyEvent *event) void QDeclarativeItem::inputMethodEvent(QInputMethodEvent *event) { Q_D(QDeclarativeItem); + inputMethodPreHandler(event); + if (event->isAccepted()) + return; if (d->keyHandler) - d->keyHandler->inputMethodEvent(event); + d->keyHandler->inputMethodEvent(event, true); else event->ignore(); } @@ -1857,99 +1966,93 @@ QVariant QDeclarativeItem::inputMethodQuery(Qt::InputMethodQuery query) const return v; } -/*! - \internal -*/ -QDeclarativeAnchorLine QDeclarativeItem::left() const +void QDeclarativeItem::keyPressPreHandler(QKeyEvent *event) { - Q_D(const QDeclarativeItem); - return d->anchorLines()->left; + Q_D(QDeclarativeItem); + if (d->keyHandler && !d->doneEventPreHandler) + d->keyHandler->keyPressed(event, false); + else + event->ignore(); + d->doneEventPreHandler = true; } -/*! - \internal -*/ -QDeclarativeAnchorLine QDeclarativeItem::right() const +void QDeclarativeItem::keyReleasePreHandler(QKeyEvent *event) { - Q_D(const QDeclarativeItem); - return d->anchorLines()->right; + Q_D(QDeclarativeItem); + if (d->keyHandler && !d->doneEventPreHandler) + d->keyHandler->keyReleased(event, false); + else + event->ignore(); + d->doneEventPreHandler = true; } -/*! - \internal -*/ -QDeclarativeAnchorLine QDeclarativeItem::horizontalCenter() const +void QDeclarativeItem::inputMethodPreHandler(QInputMethodEvent *event) { - Q_D(const QDeclarativeItem); - return d->anchorLines()->hCenter; + Q_D(QDeclarativeItem); + if (d->keyHandler && !d->doneEventPreHandler) + d->keyHandler->inputMethodEvent(event, false); + else + event->ignore(); + d->doneEventPreHandler = true; } + /*! \internal */ -QDeclarativeAnchorLine QDeclarativeItem::top() const +QDeclarativeAnchorLine QDeclarativeItemPrivate::left() const { - Q_D(const QDeclarativeItem); - return d->anchorLines()->top; + return anchorLines()->left; } /*! \internal */ -QDeclarativeAnchorLine QDeclarativeItem::bottom() const +QDeclarativeAnchorLine QDeclarativeItemPrivate::right() const { - Q_D(const QDeclarativeItem); - return d->anchorLines()->bottom; + return anchorLines()->right; } /*! \internal */ -QDeclarativeAnchorLine QDeclarativeItem::verticalCenter() const +QDeclarativeAnchorLine QDeclarativeItemPrivate::horizontalCenter() const { - Q_D(const QDeclarativeItem); - return d->anchorLines()->vCenter; + return anchorLines()->hCenter; } - /*! \internal */ -QDeclarativeAnchorLine QDeclarativeItem::baseline() const +QDeclarativeAnchorLine QDeclarativeItemPrivate::top() const { - Q_D(const QDeclarativeItem); - return d->anchorLines()->baseline; + return anchorLines()->top; } /*! - \property QDeclarativeItem::top - \internal -*/ - -/*! - \property QDeclarativeItem::bottom - \internal -*/ - -/*! - \property QDeclarativeItem::left - \internal + \internal */ +QDeclarativeAnchorLine QDeclarativeItemPrivate::bottom() const +{ + return anchorLines()->bottom; +} /*! - \property QDeclarativeItem::right - \internal + \internal */ +QDeclarativeAnchorLine QDeclarativeItemPrivate::verticalCenter() const +{ + return anchorLines()->vCenter; +} -/*! - \property QDeclarativeItem::horizontalCenter - \internal -*/ /*! - \property QDeclarativeItem::verticalCenter - \internal + \internal */ +QDeclarativeAnchorLine QDeclarativeItemPrivate::baseline() const +{ + return anchorLines()->baseline; +} /*! \qmlproperty AnchorLine Item::top @@ -2284,6 +2387,28 @@ void QDeclarativeItem::forceFocus() } } + +/*! + \qmlmethod Item::childAt(real x, real y) + + Returns the visible child item at point (\a x, \a y), which is in this + item's coordinate system, or \c null if there is no such item. + */ +QDeclarativeItem *QDeclarativeItem::childAt(qreal x, qreal y) const +{ + const QList<QGraphicsItem *> children = childItems(); + for (int i = children.count()-1; i >= 0; --i) { + if (QDeclarativeItem *child = qobject_cast<QDeclarativeItem *>(children.at(i))) { + if (child->isVisible() && child->x() <= x + && child->x() + child->width() >= x + && child->y() <= y + && child->y() + child->height() >= y) + return child; + } + } + return 0; +} + void QDeclarativeItemPrivate::focusChanged(bool flag) { Q_Q(QDeclarativeItem); @@ -2291,9 +2416,9 @@ void QDeclarativeItemPrivate::focusChanged(bool flag) } /*! \internal */ -QDeclarativeListProperty<QObject> QDeclarativeItem::resources() +QDeclarativeListProperty<QObject> QDeclarativeItemPrivate::resources() { - return QDeclarativeListProperty<QObject>(this, 0, QDeclarativeItemPrivate::resources_append, + return QDeclarativeListProperty<QObject>(q_func(), 0, QDeclarativeItemPrivate::resources_append, QDeclarativeItemPrivate::resources_count, QDeclarativeItemPrivate::resources_at); } @@ -2315,15 +2440,10 @@ QDeclarativeListProperty<QObject> QDeclarativeItem::resources() \sa {qmlstate}{States} */ -/*! - \property QDeclarativeItem::states - \internal -*/ /*! \internal */ -QDeclarativeListProperty<QDeclarativeState> QDeclarativeItem::states() +QDeclarativeListProperty<QDeclarativeState> QDeclarativeItemPrivate::states() { - Q_D(QDeclarativeItem); - return d->states()->statesProperty(); + return _states()->statesProperty(); } /*! @@ -2343,16 +2463,11 @@ QDeclarativeListProperty<QDeclarativeState> QDeclarativeItem::states() \sa {state-transitions}{Transitions} */ -/*! - \property QDeclarativeItem::transitions - \internal -*/ /*! \internal */ -QDeclarativeListProperty<QDeclarativeTransition> QDeclarativeItem::transitions() +QDeclarativeListProperty<QDeclarativeTransition> QDeclarativeItemPrivate::transitions() { - Q_D(QDeclarativeItem); - return d->states()->transitionsProperty(); + return _states()->transitionsProperty(); } /* @@ -2426,20 +2541,18 @@ QDeclarativeListProperty<QDeclarativeTransition> QDeclarativeItem::transitions() */ /*! \internal */ -QString QDeclarativeItem::state() const +QString QDeclarativeItemPrivate::state() const { - Q_D(const QDeclarativeItem); - if (!d->_stateGroup) + if (!_stateGroup) return QString(); else - return d->_stateGroup->state(); + return _stateGroup->state(); } /*! \internal */ -void QDeclarativeItem::setState(const QString &state) +void QDeclarativeItemPrivate::setState(const QString &state) { - Q_D(QDeclarativeItem); - d->states()->setState(state); + _states()->setState(state); } /*! @@ -2500,9 +2613,11 @@ void QDeclarativeItem::componentComplete() } if (d->keyHandler) d->keyHandler->componentComplete(); + if (d->_contents) + d->_contents->complete(); } -QDeclarativeStateGroup *QDeclarativeItemPrivate::states() +QDeclarativeStateGroup *QDeclarativeItemPrivate::_states() { Q_Q(QDeclarativeItem); if (!_stateGroup) { @@ -2590,7 +2705,13 @@ bool QDeclarativeItem::sceneEvent(QEvent *event) } } -/*! \internal */ +/*! + \reimp + + Note that unlike QGraphicsItems, QDeclarativeItem::itemChange() is \e not called + during initial widget polishing. Items wishing to optimize start-up construction + should instead consider using componentComplete(). +*/ QVariant QDeclarativeItem::itemChange(GraphicsItemChange change, const QVariant &value) { @@ -2618,6 +2739,16 @@ QVariant QDeclarativeItem::itemChange(GraphicsItemChange change, } } break; + case ItemChildAddedChange: + if (d->_contents) + d->_contents->childAdded(qobject_cast<QDeclarativeItem*>( + value.value<QGraphicsItem*>())); + break; + case ItemChildRemovedChange: + if (d->_contents) + d->_contents->childRemoved(qobject_cast<QDeclarativeItem*>( + value.value<QGraphicsItem*>())); + break; default: break; } @@ -2723,29 +2854,48 @@ void QDeclarativeItem::setSmooth(bool smooth) update(); } +/*! + \internal + Return the width of the item +*/ qreal QDeclarativeItem::width() const { Q_D(const QDeclarativeItem); return d->width(); } +/*! + \internal + Set the width of the item +*/ void QDeclarativeItem::setWidth(qreal w) { Q_D(QDeclarativeItem); d->setWidth(w); } +/*! + \internal + Reset the width of the item +*/ void QDeclarativeItem::resetWidth() { Q_D(QDeclarativeItem); d->resetWidth(); } +/*! + \internal + Return the width of the item +*/ qreal QDeclarativeItemPrivate::width() const { return mWidth; } +/*! + \internal +*/ void QDeclarativeItemPrivate::setWidth(qreal w) { Q_Q(QDeclarativeItem); @@ -2765,7 +2915,10 @@ void QDeclarativeItemPrivate::setWidth(qreal w) QRectF(q->x(), q->y(), oldWidth, height())); } -void QDeclarativeItemPrivate ::resetWidth() +/*! + \internal +*/ +void QDeclarativeItemPrivate::resetWidth() { Q_Q(QDeclarativeItem); widthValid = false; @@ -2810,29 +2963,47 @@ bool QDeclarativeItem::widthValid() const return d->widthValid; } +/*! + \internal + Return the height of the item +*/ qreal QDeclarativeItem::height() const { Q_D(const QDeclarativeItem); return d->height(); } +/*! + \internal + Set the height of the item +*/ void QDeclarativeItem::setHeight(qreal h) { Q_D(QDeclarativeItem); d->setHeight(h); } +/*! + \internal + Reset the height of the item +*/ void QDeclarativeItem::resetHeight() { Q_D(QDeclarativeItem); d->resetHeight(); } +/*! + \internal +*/ qreal QDeclarativeItemPrivate::height() const { return mHeight; } +/*! + \internal +*/ void QDeclarativeItemPrivate::setHeight(qreal h) { Q_Q(QDeclarativeItem); @@ -2852,6 +3023,9 @@ void QDeclarativeItemPrivate::setHeight(qreal h) QRectF(q->x(), q->y(), width(), oldHeight)); } +/*! + \internal +*/ void QDeclarativeItemPrivate::resetHeight() { Q_Q(QDeclarativeItem); @@ -2956,7 +3130,6 @@ void QDeclarativeItem::setFocus(bool focus) } /*! - \reimp \internal */ void QDeclarativeItem::paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *) @@ -2964,14 +3137,25 @@ void QDeclarativeItem::paint(QPainter *, const QStyleOptionGraphicsItem *, QWidg } /*! - \reimp \internal */ bool QDeclarativeItem::event(QEvent *ev) { + Q_D(QDeclarativeItem); + switch (ev->type()) { + case QEvent::KeyPress: + case QEvent::KeyRelease: + case QEvent::InputMethod: + d->doneEventPreHandler = false; + break; + default: + break; + } + return QGraphicsObject::event(ev); } +#ifndef QT_NO_DEBUG_STREAM QDebug operator<<(QDebug debug, QDeclarativeItem *item) { if (!item) { @@ -2985,42 +3169,58 @@ QDebug operator<<(QDebug debug, QDeclarativeItem *item) << ", z =" << item->zValue() << ')'; return debug; } +#endif -int QDeclarativeItemPrivate::consistentTime = -1; -void QDeclarativeItemPrivate::setConsistentTime(int t) +qint64 QDeclarativeItemPrivate::consistentTime = -1; +void QDeclarativeItemPrivate::setConsistentTime(qint64 t) { consistentTime = t; } -QTime QDeclarativeItemPrivate::currentTime() +class QElapsedTimerConsistentTimeHack { - if (consistentTime == -1) - return QTime::currentTime(); - else - return QTime(0, 0).addMSecs(consistentTime); -} +public: + void start() { + t1 = QDeclarativeItemPrivate::consistentTime; + t2 = 0; + } + qint64 elapsed() { + return QDeclarativeItemPrivate::consistentTime - t1; + } + qint64 restart() { + qint64 val = QDeclarativeItemPrivate::consistentTime - t1; + t1 = QDeclarativeItemPrivate::consistentTime; + t2 = 0; + return val; + } + +private: + qint64 t1; + qint64 t2; +}; -void QDeclarativeItemPrivate::start(QTime &t) +void QDeclarativeItemPrivate::start(QElapsedTimer &t) { - t = currentTime(); + if (QDeclarativeItemPrivate::consistentTime == -1) + t.start(); + else + ((QElapsedTimerConsistentTimeHack*)&t)->start(); } -int QDeclarativeItemPrivate::elapsed(QTime &t) +qint64 QDeclarativeItemPrivate::elapsed(QElapsedTimer &t) { - int n = t.msecsTo(currentTime()); - if (n < 0) // passed midnight - n += 86400 * 1000; - return n; + if (QDeclarativeItemPrivate::consistentTime == -1) + return t.elapsed(); + else + return ((QElapsedTimerConsistentTimeHack*)&t)->elapsed(); } -int QDeclarativeItemPrivate::restart(QTime &t) +qint64 QDeclarativeItemPrivate::restart(QElapsedTimer &t) { - QTime time = currentTime(); - int n = t.msecsTo(time); - if (n < 0) // passed midnight - n += 86400*1000; - t = time; - return n; + if (QDeclarativeItemPrivate::consistentTime == -1) + return t.restart(); + else + return ((QElapsedTimerConsistentTimeHack*)&t)->restart(); } QT_END_NAMESPACE |