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Diffstat (limited to 'src/qtquick1/graphicsitems/qdeclarativemousearea.cpp')
| -rw-r--r-- | src/qtquick1/graphicsitems/qdeclarativemousearea.cpp | 1014 |
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diff --git a/src/qtquick1/graphicsitems/qdeclarativemousearea.cpp b/src/qtquick1/graphicsitems/qdeclarativemousearea.cpp deleted file mode 100644 index 37cdbfb4ee..0000000000 --- a/src/qtquick1/graphicsitems/qdeclarativemousearea.cpp +++ /dev/null @@ -1,1014 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "QtQuick1/private/qdeclarativemousearea_p.h" -#include "QtQuick1/private/qdeclarativemousearea_p_p.h" - -#include "QtQuick1/private/qdeclarativeevents_p_p.h" - -#include <QGraphicsSceneMouseEvent> - -#include <float.h> - -QT_BEGIN_NAMESPACE - - -static const int PressAndHoldDelay = 800; - -QDeclarative1Drag::QDeclarative1Drag(QObject *parent) -: QObject(parent), _target(0), _axis(XandYAxis), _xmin(-FLT_MAX), _xmax(FLT_MAX), _ymin(-FLT_MAX), _ymax(FLT_MAX), -_active(false), _filterChildren(false) -{ -} - -QDeclarative1Drag::~QDeclarative1Drag() -{ -} - -QGraphicsObject *QDeclarative1Drag::target() const -{ - return _target; -} - -void QDeclarative1Drag::setTarget(QGraphicsObject *t) -{ - if (_target == t) - return; - _target = t; - emit targetChanged(); -} - -void QDeclarative1Drag::resetTarget() -{ - if (!_target) - return; - _target = 0; - emit targetChanged(); -} - -QDeclarative1Drag::Axis QDeclarative1Drag::axis() const -{ - return _axis; -} - -void QDeclarative1Drag::setAxis(QDeclarative1Drag::Axis a) -{ - if (_axis == a) - return; - _axis = a; - emit axisChanged(); -} - -qreal QDeclarative1Drag::xmin() const -{ - return _xmin; -} - -void QDeclarative1Drag::setXmin(qreal m) -{ - if (_xmin == m) - return; - _xmin = m; - emit minimumXChanged(); -} - -qreal QDeclarative1Drag::xmax() const -{ - return _xmax; -} - -void QDeclarative1Drag::setXmax(qreal m) -{ - if (_xmax == m) - return; - _xmax = m; - emit maximumXChanged(); -} - -qreal QDeclarative1Drag::ymin() const -{ - return _ymin; -} - -void QDeclarative1Drag::setYmin(qreal m) -{ - if (_ymin == m) - return; - _ymin = m; - emit minimumYChanged(); -} - -qreal QDeclarative1Drag::ymax() const -{ - return _ymax; -} - -void QDeclarative1Drag::setYmax(qreal m) -{ - if (_ymax == m) - return; - _ymax = m; - emit maximumYChanged(); -} - -bool QDeclarative1Drag::active() const -{ - return _active; -} - -void QDeclarative1Drag::setActive(bool drag) -{ - if (_active == drag) - return; - _active = drag; - emit activeChanged(); -} - -bool QDeclarative1Drag::filterChildren() const -{ - return _filterChildren; -} - -void QDeclarative1Drag::setFilterChildren(bool filter) -{ - if (_filterChildren == filter) - return; - _filterChildren = filter; - emit filterChildrenChanged(); -} - -QDeclarative1MouseAreaPrivate::~QDeclarative1MouseAreaPrivate() -{ - delete drag; -} - -/*! - \qmlclass MouseArea QDeclarative1MouseArea - \inqmlmodule QtQuick 1 - \ingroup qml-basic-interaction-elements - \since QtQuick 1.0 - \brief The MouseArea item enables simple mouse handling. - \inherits Item - - A MouseArea is an invisible item that is typically used in conjunction with - a visible item in order to provide mouse handling for that item. - By effectively acting as a proxy, the logic for mouse handling can be - contained within a MouseArea item. - - For basic key handling, see the \l{Keys}{Keys attached property}. - - The \l enabled property is used to enable and disable mouse handling for - the proxied item. When disabled, the mouse area becomes transparent to - mouse events. - - The \l pressed read-only property indicates whether or not the user is - holding down a mouse button over the mouse area. This property is often - used in bindings between properties in a user interface. The containsMouse - read-only property indicates the presence of the mouse cursor over the - mouse area but, by default, only when a mouse button is held down; see below - for further details. - - Information about the mouse position and button clicks are provided via - signals for which event handler properties are defined. The most commonly - used involved handling mouse presses and clicks: onClicked, onDoubleClicked, - onPressed, onReleased and onPressAndHold. - - By default, MouseArea items only report mouse clicks and not changes to the - position of the mouse cursor. Setting the hoverEnabled property ensures that - handlers defined for onPositionChanged, onEntered and onExited are used and - that the containsMouse property is updated even when no mouse buttons are - pressed. - - \section1 Example Usage - - \div {class="float-right"} - \inlineimage qml-mousearea-snippet.png - \enddiv - - The following example uses a MouseArea in a \l Rectangle that changes - the \l Rectangle color to red when clicked: - - \snippet doc/src/snippets/qtquick1/mousearea/mousearea.qml import - \codeline - \snippet doc/src/snippets/qtquick1/mousearea/mousearea.qml intro - - \clearfloat - Many MouseArea signals pass a \l{MouseEvent}{mouse} parameter that contains - additional information about the mouse event, such as the position, button, - and any key modifiers. - - Here is an extension of the previous example that produces a different - color when the area is right clicked: - - \snippet doc/src/snippets/qtquick1/mousearea/mousearea.qml intro-extended - - \sa MouseEvent, {declarative/touchinteraction/mousearea}{MouseArea example} -*/ - -/*! - \qmlsignal QtQuick1::MouseArea::onEntered() - - This handler is called when the mouse enters the mouse area. - - By default the onEntered handler is only called while a button is - pressed. Setting hoverEnabled to true enables handling of - onEntered when no mouse button is pressed. - - \sa hoverEnabled -*/ - -/*! - \qmlsignal QtQuick1::MouseArea::onExited() - - This handler is called when the mouse exits the mouse area. - - By default the onExited handler is only called while a button is - pressed. Setting hoverEnabled to true enables handling of - onExited when no mouse button is pressed. - - The example below shows a fairly typical relationship between - two MouseAreas, with \c mouseArea2 on top of \c mouseArea1. Moving the - mouse into \c mouseArea2 from \c mouseArea1 will cause \c onExited - to be called for \c mouseArea1. - \qml - Rectangle { - width: 400; height: 400 - MouseArea { - id: mouseArea1 - anchors.fill: parent - hoverEnabled: true - } - MouseArea { - id: mouseArea2 - width: 100; height: 100 - anchors.centerIn: parent - hoverEnabled: true - } - } - \endqml - - If instead you give the two mouseAreas a parent-child relationship, - moving the mouse into \c mouseArea2 from \c mouseArea1 will \b not - cause \c onExited to be called for \c mouseArea1. Instead, they will - both be considered to be simultaneously hovered. - - \sa hoverEnabled -*/ - -/*! - \qmlsignal QtQuick1::MouseArea::onPositionChanged(MouseEvent mouse) - - This handler is called when the mouse position changes. - - The \l {MouseEvent}{mouse} parameter provides information about the mouse, including the x and y - position, and any buttons currently pressed. - - The \e accepted property of the MouseEvent parameter is ignored in this handler. - - By default the onPositionChanged handler is only called while a button is - pressed. Setting hoverEnabled to true enables handling of - onPositionChanged when no mouse button is pressed. -*/ - -/*! - \qmlsignal QtQuick1::MouseArea::onClicked(MouseEvent mouse) - - This handler is called when there is a click. A click is defined as a press followed by a release, - both inside the MouseArea (pressing, moving outside the MouseArea, and then moving back inside and - releasing is also considered a click). - - The \l {MouseEvent}{mouse} parameter provides information about the click, including the x and y - position of the release of the click, and whether the click was held. - - The \e accepted property of the MouseEvent parameter is ignored in this handler. -*/ - -/*! - \qmlsignal QtQuick1::MouseArea::onPressed(MouseEvent mouse) - - This handler is called when there is a press. - The \l {MouseEvent}{mouse} parameter provides information about the press, including the x and y - position and which button was pressed. - - The \e accepted property of the MouseEvent parameter determines whether this MouseArea - will handle the press and all future mouse events until release. The default is to accept - the event and not allow other MouseArea beneath this one to handle the event. If \e accepted - is set to false, no further events will be sent to this MouseArea until the button is next - pressed. -*/ - -/*! - \qmlsignal QtQuick1::MouseArea::onReleased(MouseEvent mouse) - - This handler is called when there is a release. - The \l {MouseEvent}{mouse} parameter provides information about the click, including the x and y - position of the release of the click, and whether the click was held. - - The \e accepted property of the MouseEvent parameter is ignored in this handler. - - \sa onCanceled -*/ - -/*! - \qmlsignal QtQuick1::MouseArea::onPressAndHold(MouseEvent mouse) - - This handler is called when there is a long press (currently 800ms). - The \l {MouseEvent}{mouse} parameter provides information about the press, including the x and y - position of the press, and which button is pressed. - - The \e accepted property of the MouseEvent parameter is ignored in this handler. -*/ - -/*! - \qmlsignal QtQuick1::MouseArea::onDoubleClicked(MouseEvent mouse) - - This handler is called when there is a double-click (a press followed by a release followed by a press). - The \l {MouseEvent}{mouse} parameter provides information about the click, including the x and y - position of the release of the click, and whether the click was held. - - If the \e accepted property of the \l {MouseEvent}{mouse} parameter is set to false - in the handler, the onPressed/onReleased/onClicked handlers will be called for the second - click; otherwise they are suppressed. The accepted property defaults to true. -*/ - -/*! - \qmlsignal QtQuick1::MouseArea::onCanceled() - - This handler is called when mouse events have been canceled, either because an event was not accepted, or - because another element stole the mouse event handling. - - This signal is for advanced use: it is useful when there is more than one MouseArea - that is handling input, or when there is a MouseArea inside a \l Flickable. In the latter - case, if you execute some logic on the pressed signal and then start dragging, the - \l Flickable will steal the mouse handling from the MouseArea. In these cases, to reset - the logic when the MouseArea has lost the mouse handling to the \l Flickable, - \c onCanceled should be used in addition to onReleased. -*/ - -QDeclarative1MouseArea::QDeclarative1MouseArea(QDeclarativeItem *parent) - : QDeclarativeItem(*(new QDeclarative1MouseAreaPrivate), parent) -{ - Q_D(QDeclarative1MouseArea); - d->init(); -} - -QDeclarative1MouseArea::~QDeclarative1MouseArea() -{ -} - -/*! - \qmlproperty real QtQuick1::MouseArea::mouseX - \qmlproperty real QtQuick1::MouseArea::mouseY - These properties hold the coordinates of the mouse cursor. - - If the hoverEnabled property is false then these properties will only be valid - while a button is pressed, and will remain valid as long as the button is held - down even if the mouse is moved outside the area. - - By default, this property is false. - - If hoverEnabled is true then these properties will be valid when: - \list - \i no button is pressed, but the mouse is within the MouseArea (containsMouse is true). - \i a button is pressed and held, even if it has since moved out of the area. - \endlist - - The coordinates are relative to the MouseArea. -*/ -qreal QDeclarative1MouseArea::mouseX() const -{ - Q_D(const QDeclarative1MouseArea); - return d->lastPos.x(); -} - -qreal QDeclarative1MouseArea::mouseY() const -{ - Q_D(const QDeclarative1MouseArea); - return d->lastPos.y(); -} - -/*! - \qmlproperty bool QtQuick1::MouseArea::enabled - This property holds whether the item accepts mouse events. - - By default, this property is true. -*/ -bool QDeclarative1MouseArea::isEnabled() const -{ - Q_D(const QDeclarative1MouseArea); - return d->absorb; -} - -void QDeclarative1MouseArea::setEnabled(bool a) -{ - Q_D(QDeclarative1MouseArea); - if (a != d->absorb) { - d->absorb = a; - emit enabledChanged(); - } -} - -/*! - \qmlproperty bool QtQuick1::MouseArea::preventStealing - \since Quick 1.1 - This property holds whether the mouse events may be stolen from this - MouseArea. - - If a MouseArea is placed within an item that filters child mouse - events, such as Flickable, the mouse - events may be stolen from the MouseArea if a gesture is recognized - by the parent element, e.g. a flick gesture. If preventStealing is - set to true, no element will steal the mouse events. - - Note that setting preventStealing to true once an element has started - stealing events will have no effect until the next press event. - - By default this property is false. -*/ -bool QDeclarative1MouseArea::preventStealing() const -{ - Q_D(const QDeclarative1MouseArea); - return d->preventStealing; -} - -void QDeclarative1MouseArea::setPreventStealing(bool prevent) -{ - Q_D(QDeclarative1MouseArea); - if (prevent != d->preventStealing) { - d->preventStealing = prevent; - setKeepMouseGrab(d->preventStealing && d->absorb); - emit preventStealingChanged(); - } -} - -/*! - \qmlproperty MouseButtons QtQuick1::MouseArea::pressedButtons - This property holds the mouse buttons currently pressed. - - It contains a bitwise combination of: - \list - \o Qt.LeftButton - \o Qt.RightButton - \o Qt.MiddleButton - \endlist - - The code below displays "right" when the right mouse buttons is pressed: - - \snippet doc/src/snippets/qtquick1/mousearea/mousearea.qml mousebuttons - - \sa acceptedButtons -*/ -Qt::MouseButtons QDeclarative1MouseArea::pressedButtons() const -{ - Q_D(const QDeclarative1MouseArea); - return d->lastButtons; -} - -void QDeclarative1MouseArea::mousePressEvent(QGraphicsSceneMouseEvent *event) -{ - Q_D(QDeclarative1MouseArea); - d->moved = false; - d->stealMouse = d->preventStealing; - if (!d->absorb) - QDeclarativeItem::mousePressEvent(event); - else { - d->longPress = false; - d->saveEvent(event); - if (d->drag) { - d->dragX = drag()->axis() & QDeclarative1Drag::XAxis; - d->dragY = drag()->axis() & QDeclarative1Drag::YAxis; - } - if (d->drag) - d->drag->setActive(false); - setHovered(true); - d->startScene = event->scenePos(); - // we should only start timer if pressAndHold is connected to. - if (d->isPressAndHoldConnected()) - d->pressAndHoldTimer.start(PressAndHoldDelay, this); - setKeepMouseGrab(d->stealMouse); - event->setAccepted(setPressed(true)); - } -} - -void QDeclarative1MouseArea::mouseMoveEvent(QGraphicsSceneMouseEvent *event) -{ - Q_D(QDeclarative1MouseArea); - if (!d->absorb) { - QDeclarativeItem::mouseMoveEvent(event); - return; - } - - d->saveEvent(event); - - // ### we should skip this if these signals aren't used - // ### can GV handle this for us? - bool contains = boundingRect().contains(d->lastPos); - if (d->hovered && !contains) - setHovered(false); - else if (!d->hovered && contains) - setHovered(true); - - if (d->drag && d->drag->target()) { - if (!d->moved) { - d->startX = drag()->target()->x(); - d->startY = drag()->target()->y(); - } - - QPointF startLocalPos; - QPointF curLocalPos; - if (drag()->target()->parentItem()) { - startLocalPos = drag()->target()->parentItem()->mapFromScene(d->startScene); - curLocalPos = drag()->target()->parentItem()->mapFromScene(event->scenePos()); - } else { - startLocalPos = d->startScene; - curLocalPos = event->scenePos(); - } - - const int dragThreshold = QApplication::startDragDistance(); - qreal dx = qAbs(curLocalPos.x() - startLocalPos.x()); - qreal dy = qAbs(curLocalPos.y() - startLocalPos.y()); - - if (keepMouseGrab() && d->stealMouse) - d->drag->setActive(true); - - if (d->dragX && d->drag->active()) { - qreal x = (curLocalPos.x() - startLocalPos.x()) + d->startX; - if (x < drag()->xmin()) - x = drag()->xmin(); - else if (x > drag()->xmax()) - x = drag()->xmax(); - drag()->target()->setX(x); - } - if (d->dragY && d->drag->active()) { - qreal y = (curLocalPos.y() - startLocalPos.y()) + d->startY; - if (y < drag()->ymin()) - y = drag()->ymin(); - else if (y > drag()->ymax()) - y = drag()->ymax(); - drag()->target()->setY(y); - } - - if (!keepMouseGrab()) { - if ((!d->dragY && dy < dragThreshold && d->dragX && dx > dragThreshold) - || (!d->dragX && dx < dragThreshold && d->dragY && dy > dragThreshold) - || (d->dragX && d->dragY && (dx > dragThreshold || dy > dragThreshold))) { - setKeepMouseGrab(true); - d->stealMouse = true; - } - } - - d->moved = true; - } - QDeclarative1MouseEvent me(d->lastPos.x(), d->lastPos.y(), d->lastButton, d->lastButtons, d->lastModifiers, false, d->longPress); - emit mousePositionChanged(&me); - me.setX(d->lastPos.x()); - me.setY(d->lastPos.y()); - emit positionChanged(&me); -} - - -void QDeclarative1MouseArea::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) -{ - Q_D(QDeclarative1MouseArea); - d->stealMouse = false; - if (!d->absorb) { - QDeclarativeItem::mouseReleaseEvent(event); - } else { - d->saveEvent(event); - setPressed(false); - if (d->drag) - d->drag->setActive(false); - // If we don't accept hover, we need to reset containsMouse. - if (!acceptHoverEvents()) - setHovered(false); - QGraphicsScene *s = scene(); - if (s && s->mouseGrabberItem() == this) - ungrabMouse(); - setKeepMouseGrab(false); - } - d->doubleClick = false; -} - -void QDeclarative1MouseArea::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) -{ - Q_D(QDeclarative1MouseArea); - if (!d->absorb) { - QDeclarativeItem::mouseDoubleClickEvent(event); - } else { - if (d->isDoubleClickConnected()) - d->doubleClick = true; - d->saveEvent(event); - QDeclarative1MouseEvent me(d->lastPos.x(), d->lastPos.y(), d->lastButton, d->lastButtons, d->lastModifiers, true, false); - me.setAccepted(d->isDoubleClickConnected()); - emit this->doubleClicked(&me); - QDeclarativeItem::mouseDoubleClickEvent(event); - } -} - -void QDeclarative1MouseArea::hoverEnterEvent(QGraphicsSceneHoverEvent *event) -{ - Q_D(QDeclarative1MouseArea); - if (!d->absorb) - QDeclarativeItem::hoverEnterEvent(event); - else { - d->lastPos = event->pos(); - setHovered(true); - QDeclarative1MouseEvent me(d->lastPos.x(), d->lastPos.y(), Qt::NoButton, Qt::NoButton, event->modifiers(), false, false); - emit mousePositionChanged(&me); - } -} - -void QDeclarative1MouseArea::hoverMoveEvent(QGraphicsSceneHoverEvent *event) -{ - Q_D(QDeclarative1MouseArea); - if (!d->absorb) { - QDeclarativeItem::hoverMoveEvent(event); - } else { - d->lastPos = event->pos(); - QDeclarative1MouseEvent me(d->lastPos.x(), d->lastPos.y(), Qt::NoButton, Qt::NoButton, event->modifiers(), false, false); - emit mousePositionChanged(&me); - me.setX(d->lastPos.x()); - me.setY(d->lastPos.y()); - emit positionChanged(&me); - } -} - -void QDeclarative1MouseArea::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) -{ - Q_D(QDeclarative1MouseArea); - if (!d->absorb) - QDeclarativeItem::hoverLeaveEvent(event); - else - setHovered(false); -} - -#ifndef QT_NO_CONTEXTMENU -void QDeclarative1MouseArea::contextMenuEvent(QGraphicsSceneContextMenuEvent *event) -{ - bool acceptsContextMenuButton; -#if defined(Q_WS_WINCE) - // ### WinCE can trigger context menu event with a gesture in the left button or a - // click with the right button. Since we have no way here to differentiate them when - // event happens, accepting either of the them will block the event. - acceptsContextMenuButton = acceptedButtons() & (Qt::LeftButton | Qt::RightButton); -#else - acceptsContextMenuButton = acceptedButtons() & Qt::RightButton; -#endif - - if (isEnabled() && event->reason() == QGraphicsSceneContextMenuEvent::Mouse - && acceptsContextMenuButton) { - // Do not let the context menu event propagate to items behind. - return; - } - - QDeclarativeItem::contextMenuEvent(event); -} -#endif // QT_NO_CONTEXTMENU - -bool QDeclarative1MouseArea::sceneEvent(QEvent *event) -{ - bool rv = QDeclarativeItem::sceneEvent(event); - if (event->type() == QEvent::UngrabMouse) { - Q_D(QDeclarative1MouseArea); - if (d->pressed) { - // if our mouse grab has been removed (probably by Flickable), fix our - // state - d->pressed = false; - d->stealMouse = false; - setKeepMouseGrab(false); - emit canceled(); - emit pressedChanged(); - if (d->hovered) { - d->hovered = false; - emit hoveredChanged(); - } - } - } - return rv; -} - -bool QDeclarative1MouseArea::sendMouseEvent(QGraphicsSceneMouseEvent *event) -{ - Q_D(QDeclarative1MouseArea); - QGraphicsSceneMouseEvent mouseEvent(event->type()); - QRectF myRect = mapToScene(QRectF(0, 0, width(), height())).boundingRect(); - - QGraphicsScene *s = scene(); - QDeclarativeItem *grabber = s ? qobject_cast<QDeclarativeItem*>(s->mouseGrabberItem()) : 0; - bool stealThisEvent = d->stealMouse; - if ((stealThisEvent || myRect.contains(event->scenePos().toPoint())) && (!grabber || !grabber->keepMouseGrab())) { - mouseEvent.setAccepted(false); - for (int i = 0x1; i <= 0x10; i <<= 1) { - if (event->buttons() & i) { - Qt::MouseButton button = Qt::MouseButton(i); - mouseEvent.setButtonDownPos(button, mapFromScene(event->buttonDownPos(button))); - } - } - mouseEvent.setScenePos(event->scenePos()); - mouseEvent.setLastScenePos(event->lastScenePos()); - mouseEvent.setPos(mapFromScene(event->scenePos())); - mouseEvent.setLastPos(mapFromScene(event->lastScenePos())); - - switch(mouseEvent.type()) { - case QEvent::GraphicsSceneMouseMove: - mouseMoveEvent(&mouseEvent); - break; - case QEvent::GraphicsSceneMousePress: - mousePressEvent(&mouseEvent); - break; - case QEvent::GraphicsSceneMouseRelease: - mouseReleaseEvent(&mouseEvent); - break; - default: - break; - } - grabber = qobject_cast<QDeclarativeItem*>(s->mouseGrabberItem()); - if (grabber && stealThisEvent && !grabber->keepMouseGrab() && grabber != this) - grabMouse(); - - return stealThisEvent; - } - if (mouseEvent.type() == QEvent::GraphicsSceneMouseRelease) { - if (d->pressed) { - d->pressed = false; - d->stealMouse = false; - if (s && s->mouseGrabberItem() == this) - ungrabMouse(); - emit canceled(); - emit pressedChanged(); - if (d->hovered) { - d->hovered = false; - emit hoveredChanged(); - } - } - } - return false; -} - -bool QDeclarative1MouseArea::sceneEventFilter(QGraphicsItem *i, QEvent *e) -{ - Q_D(QDeclarative1MouseArea); - if (!d->absorb || !isVisible() || !d->drag || !d->drag->filterChildren()) - return QDeclarativeItem::sceneEventFilter(i, e); - switch (e->type()) { - case QEvent::GraphicsSceneMousePress: - case QEvent::GraphicsSceneMouseMove: - case QEvent::GraphicsSceneMouseRelease: - return sendMouseEvent(static_cast<QGraphicsSceneMouseEvent *>(e)); - default: - break; - } - - return QDeclarativeItem::sceneEventFilter(i, e); -} - -void QDeclarative1MouseArea::timerEvent(QTimerEvent *event) -{ - Q_D(QDeclarative1MouseArea); - if (event->timerId() == d->pressAndHoldTimer.timerId()) { - d->pressAndHoldTimer.stop(); - bool dragged = d->drag && d->drag->active(); - if (d->pressed && dragged == false && d->hovered == true) { - d->longPress = true; - QDeclarative1MouseEvent me(d->lastPos.x(), d->lastPos.y(), d->lastButton, d->lastButtons, d->lastModifiers, false, d->longPress); - emit pressAndHold(&me); - } - } -} - -void QDeclarative1MouseArea::geometryChanged(const QRectF &newGeometry, - const QRectF &oldGeometry) -{ - Q_D(QDeclarative1MouseArea); - QDeclarativeItem::geometryChanged(newGeometry, oldGeometry); - - if (d->lastScenePos.isNull) - d->lastScenePos = mapToScene(d->lastPos); - else if (newGeometry.x() != oldGeometry.x() || newGeometry.y() != oldGeometry.y()) - d->lastPos = mapFromScene(d->lastScenePos); -} - -QVariant QDeclarative1MouseArea::itemChange(GraphicsItemChange change, - const QVariant &value) -{ - Q_D(QDeclarative1MouseArea); - switch (change) { - case ItemVisibleHasChanged: - if (acceptHoverEvents() && d->hovered != (isVisible() && isUnderMouse())) - setHovered(!d->hovered); - break; - default: - break; - } - - return QDeclarativeItem::itemChange(change, value); -} - -/*! - \qmlproperty bool QtQuick1::MouseArea::hoverEnabled - This property holds whether hover events are handled. - - By default, mouse events are only handled in response to a button event, or when a button is - pressed. Hover enables handling of all mouse events even when no mouse button is - pressed. - - This property affects the containsMouse property and the onEntered, onExited and - onPositionChanged signals. -*/ -bool QDeclarative1MouseArea::hoverEnabled() const -{ - return acceptHoverEvents(); -} - -void QDeclarative1MouseArea::setHoverEnabled(bool h) -{ - Q_D(QDeclarative1MouseArea); - if (h == acceptHoverEvents()) - return; - - setAcceptHoverEvents(h); - emit hoverEnabledChanged(); - if (d->hovered != isUnderMouse()) - setHovered(!d->hovered); -} - -/*! - \qmlproperty bool QtQuick1::MouseArea::containsMouse - This property holds whether the mouse is currently inside the mouse area. - - \warning This property is not updated if the area moves under the mouse: \e containsMouse will not change. - In addition, if hoverEnabled is false, containsMouse will only be valid when the mouse is pressed. -*/ -bool QDeclarative1MouseArea::hovered() const -{ - Q_D(const QDeclarative1MouseArea); - return d->hovered; -} - -/*! - \qmlproperty bool QtQuick1::MouseArea::pressed - This property holds whether the mouse area is currently pressed. -*/ -bool QDeclarative1MouseArea::pressed() const -{ - Q_D(const QDeclarative1MouseArea); - return d->pressed; -} - -void QDeclarative1MouseArea::setHovered(bool h) -{ - Q_D(QDeclarative1MouseArea); - if (d->hovered != h) { - d->hovered = h; - emit hoveredChanged(); - d->hovered ? emit entered() : emit exited(); - } -} - -/*! - \qmlproperty QtQuick1::Qt::MouseButtons MouseArea::acceptedButtons - This property holds the mouse buttons that the mouse area reacts to. - - The available buttons are: - \list - \o Qt.LeftButton - \o Qt.RightButton - \o Qt.MiddleButton - \endlist - - To accept more than one button the flags can be combined with the - "|" (or) operator: - - \code - MouseArea { acceptedButtons: Qt.LeftButton | Qt.RightButton } - \endcode - - The default value is \c Qt.LeftButton. -*/ -Qt::MouseButtons QDeclarative1MouseArea::acceptedButtons() const -{ - return acceptedMouseButtons(); -} - -void QDeclarative1MouseArea::setAcceptedButtons(Qt::MouseButtons buttons) -{ - if (buttons != acceptedMouseButtons()) { - setAcceptedMouseButtons(buttons); - emit acceptedButtonsChanged(); - } -} - -bool QDeclarative1MouseArea::setPressed(bool p) -{ - Q_D(QDeclarative1MouseArea); - bool dragged = d->drag && d->drag->active(); - bool isclick = d->pressed == true && p == false && dragged == false && d->hovered == true; - - if (d->pressed != p) { - d->pressed = p; - QDeclarative1MouseEvent me(d->lastPos.x(), d->lastPos.y(), d->lastButton, d->lastButtons, d->lastModifiers, isclick, d->longPress); - if (d->pressed) { - if (!d->doubleClick) - emit pressed(&me); - me.setX(d->lastPos.x()); - me.setY(d->lastPos.y()); - emit mousePositionChanged(&me); - emit pressedChanged(); - } else { - emit released(&me); - me.setX(d->lastPos.x()); - me.setY(d->lastPos.y()); - emit pressedChanged(); - if (isclick && !d->longPress && !d->doubleClick) - emit clicked(&me); - } - - return me.isAccepted(); - } - return false; -} - -QDeclarative1Drag *QDeclarative1MouseArea::drag() -{ - Q_D(QDeclarative1MouseArea); - if (!d->drag) - d->drag = new QDeclarative1Drag; - return d->drag; -} - -/*! - \qmlproperty Item QtQuick1::MouseArea::drag.target - \qmlproperty bool QtQuick1::MouseArea::drag.active - \qmlproperty enumeration QtQuick1::MouseArea::drag.axis - \qmlproperty real QtQuick1::MouseArea::drag.minimumX - \qmlproperty real QtQuick1::MouseArea::drag.maximumX - \qmlproperty real QtQuick1::MouseArea::drag.minimumY - \qmlproperty real QtQuick1::MouseArea::drag.maximumY - \qmlproperty bool QtQuick1::MouseArea::drag.filterChildren - - \c drag provides a convenient way to make an item draggable. - - \list - \i \c drag.target specifies the id of the item to drag. - \i \c drag.active specifies if the target item is currently being dragged. - \i \c drag.axis specifies whether dragging can be done horizontally (\c Drag.XAxis), vertically (\c Drag.YAxis), or both (\c Drag.XandYAxis) - \i \c drag.minimum and \c drag.maximum limit how far the target can be dragged along the corresponding axes. - \endlist - - The following example displays a \l Rectangle that can be dragged along the X-axis. The opacity - of the rectangle is reduced when it is dragged to the right. - - \snippet doc/src/snippets/qtquick1/mousearea/mousearea.qml drag - - \note Items cannot be dragged if they are anchored for the requested - \c drag.axis. For example, if \c anchors.left or \c anchors.right was set - for \c rect in the above example, it cannot be dragged along the X-axis. - This can be avoided by settng the anchor value to \c undefined in - an \l onPressed handler. - - If \c drag.filterChildren is set to true, a drag can override descendant MouseAreas. This - enables a parent MouseArea to handle drags, for example, while descendants handle clicks: - - \snippet doc/src/snippets/qtquick1/mousearea/mouseareadragfilter.qml dragfilter - -*/ - -QT_END_NAMESPACE |