diff options
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativepathview.cpp | 183 | ||||
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativepathview_p_p.h | 4 |
2 files changed, 112 insertions, 75 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativepathview.cpp b/src/declarative/graphicsitems/qdeclarativepathview.cpp index 8f60281..d134929 100644 --- a/src/declarative/graphicsitems/qdeclarativepathview.cpp +++ b/src/declarative/graphicsitems/qdeclarativepathview.cpp @@ -1035,103 +1035,138 @@ QPointF QDeclarativePathViewPrivate::pointNear(const QPointF &point, qreal *near return nearPoint; } - void QDeclarativePathView::mousePressEvent(QGraphicsSceneMouseEvent *event) { Q_D(QDeclarativePathView); - if (!d->interactive || !d->items.count()) + if (d->interactive) { + d->handleMousePressEvent(event); + event->accept(); + } else { + QDeclarativeItem::mousePressEvent(event); + } +} + +void QDeclarativePathViewPrivate::handleMousePressEvent(QGraphicsSceneMouseEvent *event) +{ + Q_Q(QDeclarativePathView); + if (!interactive || !items.count()) return; - QPointF scenePoint = mapToScene(event->pos()); + QPointF scenePoint = q->mapToScene(event->pos()); int idx = 0; - for (; idx < d->items.count(); ++idx) { - QRectF rect = d->items.at(idx)->boundingRect(); - rect = d->items.at(idx)->mapToScene(rect).boundingRect(); + for (; idx < items.count(); ++idx) { + QRectF rect = items.at(idx)->boundingRect(); + rect = items.at(idx)->mapToScene(rect).boundingRect(); if (rect.contains(scenePoint)) break; } - if (idx == d->items.count() && d->dragMargin == 0.) // didn't click on an item + if (idx == items.count() && dragMargin == 0.) // didn't click on an item return; - d->startPoint = d->pointNear(event->pos(), &d->startPc); - if (idx == d->items.count()) { - qreal distance = qAbs(event->pos().x() - d->startPoint.x()) + qAbs(event->pos().y() - d->startPoint.y()); - if (distance > d->dragMargin) + startPoint = pointNear(event->pos(), &startPc); + if (idx == items.count()) { + qreal distance = qAbs(event->pos().x() - startPoint.x()) + qAbs(event->pos().y() - startPoint.y()); + if (distance > dragMargin) return; } - if (d->tl.isActive() && d->flicking) - d->stealMouse = true; // If we've been flicked then steal the click. + if (tl.isActive() && flicking) + stealMouse = true; // If we've been flicked then steal the click. else - d->stealMouse = false; + stealMouse = false; - d->lastElapsed = 0; - d->lastDist = 0; - QDeclarativeItemPrivate::start(d->lastPosTime); - d->tl.clear(); + lastElapsed = 0; + lastDist = 0; + QDeclarativeItemPrivate::start(lastPosTime); + tl.clear(); } void QDeclarativePathView::mouseMoveEvent(QGraphicsSceneMouseEvent *event) { Q_D(QDeclarativePathView); - if (!d->interactive || !d->lastPosTime.isValid()) + if (d->interactive) { + d->handleMouseMoveEvent(event); + if (d->stealMouse) + setKeepMouseGrab(true); + event->accept(); + } else { + QDeclarativeItem::mouseMoveEvent(event); + } +} + +void QDeclarativePathViewPrivate::handleMouseMoveEvent(QGraphicsSceneMouseEvent *event) +{ + Q_Q(QDeclarativePathView); + if (!interactive || !lastPosTime.isValid()) return; - if (!d->stealMouse) { - QPointF delta = event->pos() - d->startPoint; + if (!stealMouse) { + QPointF delta = event->pos() - startPoint; if (qAbs(delta.x()) > QApplication::startDragDistance() || qAbs(delta.y()) > QApplication::startDragDistance()) - d->stealMouse = true; + stealMouse = true; } - if (d->stealMouse) { - d->moveReason = QDeclarativePathViewPrivate::Mouse; + if (stealMouse) { + moveReason = QDeclarativePathViewPrivate::Mouse; qreal newPc; - d->pointNear(event->pos(), &newPc); - qreal diff = (newPc - d->startPc)*d->modelCount*d->mappedRange; + pointNear(event->pos(), &newPc); + qreal diff = (newPc - startPc)*modelCount*mappedRange; if (diff) { - setOffset(d->offset + diff); + setOffset(offset + diff); - if (diff > d->modelCount/2) - diff -= d->modelCount; - else if (diff < -d->modelCount/2) - diff += d->modelCount; + if (diff > modelCount/2) + diff -= modelCount; + else if (diff < -modelCount/2) + diff += modelCount; - d->lastElapsed = QDeclarativeItemPrivate::restart(d->lastPosTime); - d->lastDist = diff; - d->startPc = newPc; + lastElapsed = QDeclarativeItemPrivate::restart(lastPosTime); + lastDist = diff; + startPc = newPc; } - if (!d->moving) { - d->moving = true; - emit movingChanged(); - emit movementStarted(); + if (!moving) { + moving = true; + emit q->movingChanged(); + emit q->movementStarted(); } } } -void QDeclarativePathView::mouseReleaseEvent(QGraphicsSceneMouseEvent *) +void QDeclarativePathView::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) { Q_D(QDeclarativePathView); - d->stealMouse = false; - setKeepMouseGrab(false); - if (!d->interactive || !d->lastPosTime.isValid()) + if (d->interactive) { + d->handleMouseReleaseEvent(event); + event->accept(); + ungrabMouse(); + } else { + QDeclarativeItem::mouseReleaseEvent(event); + } +} + +void QDeclarativePathViewPrivate::handleMouseReleaseEvent(QGraphicsSceneMouseEvent *) +{ + Q_Q(QDeclarativePathView); + stealMouse = false; + q->setKeepMouseGrab(false); + if (!interactive || !lastPosTime.isValid()) return; - qreal elapsed = qreal(d->lastElapsed + QDeclarativeItemPrivate::elapsed(d->lastPosTime)) / 1000.; - qreal velocity = elapsed > 0. ? d->lastDist / elapsed : 0; - if (d->model && d->modelCount && qAbs(velocity) > 1.) { - qreal count = d->pathItems == -1 ? d->modelCount : d->pathItems; + qreal elapsed = qreal(lastElapsed + QDeclarativeItemPrivate::elapsed(lastPosTime)) / 1000.; + qreal velocity = elapsed > 0. ? lastDist / elapsed : 0; + if (model && modelCount && qAbs(velocity) > 1.) { + qreal count = pathItems == -1 ? modelCount : pathItems; if (qAbs(velocity) > count * 2) // limit velocity velocity = (velocity > 0 ? count : -count) * 2; // Calculate the distance to be travelled qreal v2 = velocity*velocity; - qreal accel = d->deceleration/10; + qreal accel = deceleration/10; // + 0.25 to encourage moving at least one item in the flick direction - qreal dist = qMin(qreal(d->modelCount-1), qreal(v2 / (accel * 2.0) + 0.25)); - if (d->haveHighlightRange && d->highlightRangeMode == QDeclarativePathView::StrictlyEnforceRange) { + qreal dist = qMin(qreal(modelCount-1), qreal(v2 / (accel * 2.0) + 0.25)); + if (haveHighlightRange && highlightRangeMode == QDeclarativePathView::StrictlyEnforceRange) { // round to nearest item. if (velocity > 0.) - dist = qRound(dist + d->offset) - d->offset; + dist = qRound(dist + offset) - offset; else - dist = qRound(dist - d->offset) + d->offset; + dist = qRound(dist - offset) + offset; // Calculate accel required to stop on item boundary if (dist <= 0.) { dist = 0.; @@ -1140,23 +1175,22 @@ void QDeclarativePathView::mouseReleaseEvent(QGraphicsSceneMouseEvent *) accel = v2 / (2.0f * qAbs(dist)); } } - d->offsetAdj = 0.0; - d->moveOffset.setValue(d->offset); - d->tl.accel(d->moveOffset, velocity, accel, dist); - d->tl.callback(QDeclarativeTimeLineCallback(&d->moveOffset, d->fixOffsetCallback, d)); - if (!d->flicking) { - d->flicking = true; - emit flickingChanged(); - emit flickStarted(); + offsetAdj = 0.0; + moveOffset.setValue(offset); + tl.accel(moveOffset, velocity, accel, dist); + tl.callback(QDeclarativeTimeLineCallback(&moveOffset, fixOffsetCallback, this)); + if (!flicking) { + flicking = true; + emit q->flickingChanged(); + emit q->flickStarted(); } } else { - d->fixOffset(); + fixOffset(); } - d->lastPosTime.invalidate(); - ungrabMouse(); - if (!d->tl.isActive()) - movementEnding(); + lastPosTime.invalidate(); + if (!tl.isActive()) + q->movementEnding(); } bool QDeclarativePathView::sendMouseEvent(QGraphicsSceneMouseEvent *event) @@ -1166,7 +1200,8 @@ bool QDeclarativePathView::sendMouseEvent(QGraphicsSceneMouseEvent *event) QRectF myRect = mapToScene(QRectF(0, 0, width(), height())).boundingRect(); QGraphicsScene *s = scene(); QDeclarativeItem *grabber = s ? qobject_cast<QDeclarativeItem*>(s->mouseGrabberItem()) : 0; - if ((d->stealMouse || myRect.contains(event->scenePos().toPoint())) && (!grabber || !grabber->keepMouseGrab())) { + 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) { @@ -1181,25 +1216,28 @@ bool QDeclarativePathView::sendMouseEvent(QGraphicsSceneMouseEvent *event) switch(mouseEvent.type()) { case QEvent::GraphicsSceneMouseMove: - mouseMoveEvent(&mouseEvent); + d->handleMouseMoveEvent(&mouseEvent); break; case QEvent::GraphicsSceneMousePress: - mousePressEvent(&mouseEvent); + d->handleMousePressEvent(&mouseEvent); + stealThisEvent = d->stealMouse; // Update stealThisEvent in case changed by function call above break; case QEvent::GraphicsSceneMouseRelease: - mouseReleaseEvent(&mouseEvent); + d->handleMouseReleaseEvent(&mouseEvent); break; default: break; } grabber = qobject_cast<QDeclarativeItem*>(s->mouseGrabberItem()); - if (grabber && d->stealMouse && !grabber->keepMouseGrab() && grabber != this) + if (grabber && stealThisEvent && !grabber->keepMouseGrab() && grabber != this) grabMouse(); return d->stealMouse; } else if (d->lastPosTime.isValid()) { d->lastPosTime.invalidate(); } + if (mouseEvent.type() == QEvent::GraphicsSceneMouseRelease) + d->stealMouse = false; return false; } @@ -1213,12 +1251,7 @@ bool QDeclarativePathView::sceneEventFilter(QGraphicsItem *i, QEvent *e) case QEvent::GraphicsSceneMousePress: case QEvent::GraphicsSceneMouseMove: case QEvent::GraphicsSceneMouseRelease: - { - bool ret = sendMouseEvent(static_cast<QGraphicsSceneMouseEvent *>(e)); - if (e->type() == QEvent::GraphicsSceneMouseRelease) - return ret; - break; - } + return sendMouseEvent(static_cast<QGraphicsSceneMouseEvent *>(e)); default: break; } diff --git a/src/declarative/graphicsitems/qdeclarativepathview_p_p.h b/src/declarative/graphicsitems/qdeclarativepathview_p_p.h index dfebe35..b217216 100644 --- a/src/declarative/graphicsitems/qdeclarativepathview_p_p.h +++ b/src/declarative/graphicsitems/qdeclarativepathview_p_p.h @@ -123,6 +123,10 @@ public: return model && model->count() > 0 && model->isValid() && path; } + void handleMousePressEvent(QGraphicsSceneMouseEvent *event); + void handleMouseMoveEvent(QGraphicsSceneMouseEvent *event); + void handleMouseReleaseEvent(QGraphicsSceneMouseEvent *); + int calcCurrentIndex(); void updateCurrent(); static void fixOffsetCallback(void*); |