diff options
Diffstat (limited to 'src/gui/kernel/qgesturemanager.cpp')
| -rw-r--r-- | src/gui/kernel/qgesturemanager.cpp | 226 |
1 files changed, 117 insertions, 109 deletions
diff --git a/src/gui/kernel/qgesturemanager.cpp b/src/gui/kernel/qgesturemanager.cpp index 0f0aef2..4f8a911 100644 --- a/src/gui/kernel/qgesturemanager.cpp +++ b/src/gui/kernel/qgesturemanager.cpp @@ -88,7 +88,8 @@ Qt::GestureType QGestureManager::registerGestureRecognizer(QGestureRecognizer *r { QGesture *dummy = recognizer->createGesture(0); if (!dummy) { - qWarning("QGestureManager::registerGestureRecognizer: the recognizer doesn't provide gesture object"); + qWarning("QGestureManager::registerGestureRecognizer: " + "the recognizer doesn't provide gesture object"); return Qt::GestureType(0); } Qt::GestureType type = dummy->gestureType(); @@ -107,7 +108,7 @@ void QGestureManager::unregisterGestureRecognizer(Qt::GestureType) } -QGesture* QGestureManager::getState(QObject *object, Qt::GestureType type) +QGesture *QGestureManager::getState(QObject *object, Qt::GestureType type) { // if the widget is being deleted we should be carefull and not to // create a new state, as it will create QWeakPointer which doesnt work @@ -115,9 +116,14 @@ QGesture* QGestureManager::getState(QObject *object, Qt::GestureType type) if (object->isWidgetType()) { if (static_cast<QWidget *>(object)->d_func()->data.in_destructor) return 0; + } else if (QGesture *g = qobject_cast<QGesture *>(object)) { + return g; + } else { + Q_ASSERT(qobject_cast<QGraphicsObject *>(object)); } - QWeakPointer<QGesture> state = objectGestures.value(QGestureManager::ObjectGesture(object, type)); + QWeakPointer<QGesture> state = + objectGestures.value(QGestureManager::ObjectGesture(object, type)); if (!state) { QGestureRecognizer *recognizer = recognizers.value(type); if (recognizer) { @@ -136,7 +142,9 @@ QGesture* QGestureManager::getState(QObject *object, Qt::GestureType type) return state.data(); } -bool QGestureManager::filterEvent(QObject *receiver, QEvent *event) +bool QGestureManager::filterEventThroughContexts(const QMap<QObject *, + Qt::GestureType> &contexts, + QObject *receiver, QEvent *event) { QSet<QGesture *> triggeredGestures; QSet<QGesture *> finishedGestures; @@ -144,93 +152,20 @@ bool QGestureManager::filterEvent(QObject *receiver, QEvent *event) QSet<QGesture *> canceledGestures; QSet<QGesture *> notGestures; - QGraphicsObject *graphicsObject = qobject_cast<QGraphicsObject *>(receiver); - if (receiver->isWidgetType() || graphicsObject) { - QMap<QObject *, Qt::GestureType> contexts; - if (receiver->isWidgetType()) { - QWidget *w = static_cast<QWidget *>(receiver); - if (!w->d_func()->gestureContext.isEmpty()) { - typedef QMap<Qt::GestureType, Qt::GestureContext>::const_iterator ContextIterator; - for(ContextIterator it = w->d_func()->gestureContext.begin(), - e = w->d_func()->gestureContext.end(); it != e; ++it) { - contexts.insertMulti(w, it.key()); - } - } - // find all gesture contexts for the widget tree - w = w->parentWidget(); - while (w) - { - typedef QMap<Qt::GestureType, Qt::GestureContext>::const_iterator ContextIterator; - for (ContextIterator it = w->d_func()->gestureContext.begin(), - e = w->d_func()->gestureContext.end(); it != e; ++it) { - if (it.value() == Qt::WidgetWithChildrenGesture) - contexts.insertMulti(w, it.key()); - } - w = w->parentWidget(); - } - } else { - QGraphicsObject *item = graphicsObject; - if (!item->QGraphicsItem::d_func()->gestureContext.isEmpty()) { - typedef QMap<Qt::GestureType, Qt::GestureContext>::const_iterator ContextIterator; - for(ContextIterator it = item->QGraphicsItem::d_func()->gestureContext.begin(), - e = item->QGraphicsItem::d_func()->gestureContext.end(); it != e; ++it) { - contexts.insertMulti(item, it.key()); - } - } - // find all gesture contexts for the widget tree - item = item->parentObject(); - while (item) - { - typedef QMap<Qt::GestureType, Qt::GestureContext>::const_iterator ContextIterator; - for (ContextIterator it = item->QGraphicsItem::d_func()->gestureContext.begin(), - e = item->QGraphicsItem::d_func()->gestureContext.end(); it != e; ++it) { - if (it.value() == Qt::WidgetWithChildrenGesture) - contexts.insertMulti(item, it.key()); - } - item = item->parentObject(); - } - } - // filter the event through recognizers - typedef QMap<QObject *, Qt::GestureType>::const_iterator ContextIterator; - for (ContextIterator cit = contexts.begin(), ce = contexts.end(); cit != ce; ++cit) { - Qt::GestureType gestureType = cit.value(); - QMap<Qt::GestureType, QGestureRecognizer *>::const_iterator - rit = recognizers.lowerBound(gestureType), - re = recognizers.upperBound(gestureType); - for (; rit != re; ++rit) { - QGestureRecognizer *recognizer = rit.value(); - QObject *target = cit.key(); - QGesture *state = getState(target, gestureType); - if (!state) - continue; - QGestureRecognizer::Result result = recognizer->filterEvent(state, target, event); - QGestureRecognizer::Result type = result & QGestureRecognizer::ResultState_Mask; - if (type == QGestureRecognizer::GestureTriggered) { - DEBUG() << "QGestureManager: gesture triggered: " << state; - triggeredGestures << state; - } else if (type == QGestureRecognizer::GestureFinished) { - DEBUG() << "QGestureManager: gesture finished: " << state; - finishedGestures << state; - } else if (type == QGestureRecognizer::MaybeGesture) { - DEBUG() << "QGestureManager: maybe gesture: " << state; - newMaybeGestures << state; - } else if (type == QGestureRecognizer::NotGesture) { - DEBUG() << "QGestureManager: not gesture: " << state; - notGestures << state; - } else if (type == QGestureRecognizer::Ignore) { - DEBUG() << "QGestureManager: gesture ignored the event: " << state; - } else { - DEBUG() << "QGestureManager: hm, lets assume the recognizer ignored the event: " << state; - } - if (result & QGestureRecognizer::ConsumeEventHint) { - DEBUG() << "QGestureManager: we were asked to consume the event: " << state; - //TODO: consume events if asked - } - } - } - } else if (QGesture *state = qobject_cast<QGesture*>(receiver)) { - if (QGestureRecognizer *recognizer = gestureToRecognizer.value(state)) { - QGestureRecognizer::Result result = recognizer->filterEvent(state, state, event); + // filter the event through recognizers + typedef QMap<QObject *, Qt::GestureType>::const_iterator ContextIterator; + for (ContextIterator cit = contexts.begin(), ce = contexts.end(); cit != ce; ++cit) { + Qt::GestureType gestureType = cit.value(); + QMap<Qt::GestureType, QGestureRecognizer *>::const_iterator + rit = recognizers.lowerBound(gestureType), + re = recognizers.upperBound(gestureType); + for (; rit != re; ++rit) { + QGestureRecognizer *recognizer = rit.value(); + QObject *target = cit.key(); + QGesture *state = getState(target, gestureType); + if (!state) + continue; + QGestureRecognizer::Result result = recognizer->filterEvent(state, target, event); QGestureRecognizer::Result type = result & QGestureRecognizer::ResultState_Mask; if (type == QGestureRecognizer::GestureTriggered) { DEBUG() << "QGestureManager: gesture triggered: " << state; @@ -247,11 +182,15 @@ bool QGestureManager::filterEvent(QObject *receiver, QEvent *event) } else if (type == QGestureRecognizer::Ignore) { DEBUG() << "QGestureManager: gesture ignored the event: " << state; } else { - DEBUG() << "QGestureManager: hm, lets assume the recognizer ignored the event: " << state; + DEBUG() << "QGestureManager: hm, lets assume the recognizer" + << "ignored the event: " << state; + } + if (result & QGestureRecognizer::ConsumeEventHint) { + DEBUG() << "QGestureManager: we were asked to consume the event: " + << state; + //TODO: consume events if asked } } - } else { - return false; } QSet<QGesture *> startedGestures = triggeredGestures - activeGestures; @@ -260,7 +199,8 @@ bool QGestureManager::filterEvent(QObject *receiver, QEvent *event) // check if a running gesture switched back to maybe state QSet<QGesture *> activeToMaybeGestures = activeGestures & newMaybeGestures; - // check if a running gesture switched back to not gesture state, i.e. were canceled + // check if a running gesture switched back to not gesture state, + // i.e. were canceled QSet<QGesture *> activeToCancelGestures = activeGestures & notGestures; canceledGestures += activeToCancelGestures; @@ -271,7 +211,9 @@ bool QGestureManager::filterEvent(QObject *receiver, QEvent *event) timer.start(3000, this); } // kill timers for gestures that were in maybe state - QSet<QGesture *> notMaybeGestures = (startedGestures | triggeredGestures | finishedGestures | canceledGestures | notGestures); + QSet<QGesture *> notMaybeGestures = (startedGestures | triggeredGestures + | finishedGestures | canceledGestures + | notGestures); foreach(QGesture *gesture, notMaybeGestures) { QMap<QGesture *, QBasicTimer>::iterator it = maybeGestures.find(gesture); @@ -294,7 +236,9 @@ bool QGestureManager::filterEvent(QObject *receiver, QEvent *event) // probably those are "singleshot" gestures so we'll fake the started state. foreach (QGesture *gesture, notStarted) gesture->d_func()->state = Qt::GestureStarted; - deliverEvents(notStarted, receiver); + QSet<QGesture *> undeliveredGestures; + deliverEvents(notStarted, receiver, &undeliveredGestures); + finishedGestures -= undeliveredGestures; } activeGestures += startedGestures; @@ -328,10 +272,15 @@ bool QGestureManager::filterEvent(QObject *receiver, QEvent *event) << "\n\tcanceled:" << canceledGestures; } - deliverEvents(startedGestures+triggeredGestures+finishedGestures+canceledGestures, receiver); + QSet<QGesture *> undeliveredGestures; + deliverEvents(startedGestures+triggeredGestures+finishedGestures+canceledGestures, + receiver, &undeliveredGestures); + + activeGestures -= undeliveredGestures; // reset gestures that ended - QSet<QGesture *> endedGestures = finishedGestures + canceledGestures; + QSet<QGesture *> endedGestures = + finishedGestures + canceledGestures + undeliveredGestures; foreach (QGesture *gesture, endedGestures) { if (QGestureRecognizer *recognizer = gestureToRecognizer.value(gesture, 0)) { recognizer->reset(gesture); @@ -341,7 +290,68 @@ bool QGestureManager::filterEvent(QObject *receiver, QEvent *event) return false; } -void QGestureManager::deliverEvents(const QSet<QGesture*> &gestures, QObject *lastReceiver) +bool QGestureManager::filterEvent(QWidget *receiver, QEvent *event) +{ + QMap<QObject *, Qt::GestureType> contexts; + QWidget *w = receiver; + if (!w->d_func()->gestureContext.isEmpty()) { + typedef QMap<Qt::GestureType, Qt::GestureContext>::const_iterator ContextIterator; + for(ContextIterator it = w->d_func()->gestureContext.begin(), + e = w->d_func()->gestureContext.end(); it != e; ++it) { + contexts.insertMulti(w, it.key()); + } + } + // find all gesture contexts for the widget tree + w = w->parentWidget(); + while (w) + { + typedef QMap<Qt::GestureType, Qt::GestureContext>::const_iterator ContextIterator; + for (ContextIterator it = w->d_func()->gestureContext.begin(), + e = w->d_func()->gestureContext.end(); it != e; ++it) { + if (it.value() == Qt::WidgetWithChildrenGesture) + contexts.insertMulti(w, it.key()); + } + w = w->parentWidget(); + } + return filterEventThroughContexts(contexts , receiver, event); +} + +bool QGestureManager::filterEvent(QGraphicsObject *graphicsObject, QEvent *event) +{ + QMap<QObject *, Qt::GestureType> contexts; + QGraphicsObject *item = graphicsObject; + if (!item->QGraphicsItem::d_func()->gestureContext.isEmpty()) { + typedef QMap<Qt::GestureType, Qt::GestureContext>::const_iterator ContextIterator; + for(ContextIterator it = item->QGraphicsItem::d_func()->gestureContext.begin(), + e = item->QGraphicsItem::d_func()->gestureContext.end(); it != e; ++it) { + contexts.insertMulti(item, it.key()); + } + } + // find all gesture contexts for the graphics object tree + item = item->parentObject(); + while (item) + { + typedef QMap<Qt::GestureType, Qt::GestureContext>::const_iterator ContextIterator; + for (ContextIterator it = item->QGraphicsItem::d_func()->gestureContext.begin(), + e = item->QGraphicsItem::d_func()->gestureContext.end(); it != e; ++it) { + if (it.value() == Qt::ItemWithChildrenGesture) + contexts.insertMulti(item, it.key()); + } + item = item->parentObject(); + } + return filterEventThroughContexts(contexts, graphicsObject, event); +} + +bool QGestureManager::filterEvent(QGesture *state, QEvent *event) +{ + QMap<QObject *, Qt::GestureType> contexts; + contexts.insert(state, state->gestureType()); + return filterEventThroughContexts(contexts, 0, event); +} + +void QGestureManager::deliverEvents(const QSet<QGesture*> &gestures, + QObject *lastReceiver, + QSet<QGesture *> *undeliveredGestures) { if (gestures.isEmpty()) return; @@ -360,16 +370,12 @@ void QGestureManager::deliverEvents(const QSet<QGesture*> &gestures, QObject *la if (gesture->hasHotSpot()) { // guess the target using the hotspot of the gesture QPoint pt = gesture->hotSpot().toPoint(); - if (!pt.isNull()) { - if (QWidget *w = qApp->topLevelAt(pt)) - target = w->childAt(w->mapFromGlobal(pt)); + if (QWidget *w = qApp->topLevelAt(pt)) { + target = w->childAt(w->mapFromGlobal(pt)); } } - if (!target) { - target = gesture->targetObject(); - if (!target) - target = lastReceiver; - } + if (!target) + target = lastReceiver; } if (target) { gestureTargets.insert(gesture, target); @@ -379,11 +385,13 @@ void QGestureManager::deliverEvents(const QSet<QGesture*> &gestures, QObject *la } else { qWarning() << "QGestureManager::deliverEvent: could not find the target for gesture" << gesture->gestureType(); + undeliveredGestures->insert(gesture); } } typedef QMultiHash<QObject *, QGesture *>::const_iterator ObjectGesturesIterator; - for (ObjectGesturesIterator it = objectGestures.begin(), e = objectGestures.end(); it != e; ++it) { + for (ObjectGesturesIterator it = objectGestures.begin(), + e = objectGestures.end(); it != e; ++it) { QObject *object1 = it.key(); QWidget *widget1 = qobject_cast<QWidget *>(object1); QGraphicsObject *item1 = qobject_cast<QGraphicsObject *>(object1); |