From 9d6ccfea89ae99b747f70ece71185868f189d0f9 Mon Sep 17 00:00:00 2001 From: Martin Jones Date: Thu, 24 Jun 2010 14:19:45 +1000 Subject: Expose the Flickable's internal contentItem So that dynamically created items can be parented to the contentItem and be flicked with the rest of the content. Task-number: QTBUG-11674 Reviewed-by: Aaron Kennedy --- .../graphicsitems/qdeclarativeflickable.cpp | 52 +++++++++++++++------- .../graphicsitems/qdeclarativeflickable_p.h | 3 +- .../graphicsitems/qdeclarativeflickable_p_p.h | 2 +- .../graphicsitems/qdeclarativegridview.cpp | 20 ++++----- .../graphicsitems/qdeclarativelistview.cpp | 24 +++++----- .../qdeclarativeflickable/data/flickable04.qml | 6 +++ .../tst_qdeclarativeflickable.cpp | 4 ++ 7 files changed, 70 insertions(+), 41 deletions(-) diff --git a/src/declarative/graphicsitems/qdeclarativeflickable.cpp b/src/declarative/graphicsitems/qdeclarativeflickable.cpp index 3f681b7..65bc233 100644 --- a/src/declarative/graphicsitems/qdeclarativeflickable.cpp +++ b/src/declarative/graphicsitems/qdeclarativeflickable.cpp @@ -122,7 +122,7 @@ void QDeclarativeFlickableVisibleArea::updateVisible() QDeclarativeFlickablePrivate::QDeclarativeFlickablePrivate() - : viewport(new QDeclarativeItem) + : contentItem(new QDeclarativeItem) , hData(this, &QDeclarativeFlickablePrivate::setRoundedViewportX) , vData(this, &QDeclarativeFlickablePrivate::setRoundedViewportY) , flickingHorizontally(false), flickingVertically(false) @@ -140,8 +140,8 @@ QDeclarativeFlickablePrivate::QDeclarativeFlickablePrivate() void QDeclarativeFlickablePrivate::init() { Q_Q(QDeclarativeFlickable); - QDeclarative_setParent_noEvent(viewport, q); - viewport->setParentItem(q); + QDeclarative_setParent_noEvent(contentItem, q); + contentItem->setParentItem(q); static int timelineUpdatedIdx = -1; static int timelineCompletedIdx = -1; static int flickableTickedIdx = -1; @@ -158,7 +158,7 @@ void QDeclarativeFlickablePrivate::init() q, flickableMovementEndingIdx, Qt::DirectConnection); q->setAcceptedMouseButtons(Qt::LeftButton); q->setFiltersChildEvents(true); - QDeclarativeItemPrivate *viewportPrivate = static_cast(QGraphicsItemPrivate::get(viewport)); + QDeclarativeItemPrivate *viewportPrivate = static_cast(QGraphicsItemPrivate::get(contentItem)); viewportPrivate->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry); lastPosTime.invalidate(); } @@ -182,7 +182,7 @@ qreal QDeclarativeFlickablePrivate::overShootDistance(qreal velocity, qreal size void QDeclarativeFlickablePrivate::itemGeometryChanged(QDeclarativeItem *item, const QRectF &newGeom, const QRectF &oldGeom) { Q_Q(QDeclarativeFlickable); - if (item == viewport) { + if (item == contentItem) { if (newGeom.x() != oldGeom.x()) emit q->contentXChanged(); if (newGeom.y() != oldGeom.y()) @@ -579,10 +579,28 @@ void QDeclarativeFlickable::ticked() viewportMoved(); } -QDeclarativeItem *QDeclarativeFlickable::viewport() +/*! + \qmlproperty Item Flickable::contentItem + + The internal item that contains the Items to be moved in the Flickable. + + Items declared as children of a Flickable are automatically parented to the Flickable's contentItem. + + Items created dynamically need to be explicitly parented to the \e contentItem: + \code + Flickable { + id: myFlickable + function addItem(file) { + var component = Qt.createComponent(file) + component.createObject(myFlickable.contentItem); + } + } + \endcode +*/ +QDeclarativeItem *QDeclarativeFlickable::contentItem() { Q_D(QDeclarativeFlickable); - return d->viewport; + return d->contentItem; } QDeclarativeFlickableVisibleArea *QDeclarativeFlickable::visibleArea() @@ -899,12 +917,12 @@ void QDeclarativeFlickablePrivate::clearDelayedPress() void QDeclarativeFlickablePrivate::setRoundedViewportX(qreal x) { - viewport->setX(qRound(x)); + contentItem->setX(qRound(x)); } void QDeclarativeFlickablePrivate::setRoundedViewportY(qreal y) { - viewport->setY(qRound(y)); + contentItem->setY(qRound(y)); } void QDeclarativeFlickable::timerEvent(QTimerEvent *event) @@ -991,13 +1009,13 @@ void QDeclarativeFlickable::geometryChanged(const QRectF &newGeometry, bool changed = false; if (newGeometry.width() != oldGeometry.width()) { if (d->hData.viewSize < 0) { - d->viewport->setWidth(width()); + d->contentItem->setWidth(width()); emit contentWidthChanged(); } } if (newGeometry.height() != oldGeometry.height()) { if (d->vData.viewSize < 0) { - d->viewport->setHeight(height()); + d->contentItem->setHeight(height()); emit contentHeightChanged(); } } @@ -1018,7 +1036,7 @@ void QDeclarativeFlickablePrivate::data_append(QDeclarativeListProperty { QDeclarativeItem *i = qobject_cast(o); if (i) - i->setParentItem(static_cast(prop->data)->viewport); + i->setParentItem(static_cast(prop->data)->contentItem); else o->setParent(prop->object); } @@ -1032,7 +1050,7 @@ QDeclarativeListProperty QDeclarativeFlickable::flickableData() QDeclarativeListProperty QDeclarativeFlickable::flickableChildren() { Q_D(QDeclarativeFlickable); - return QGraphicsItemPrivate::get(d->viewport)->childrenList(); + return QGraphicsItemPrivate::get(d->contentItem)->childrenList(); } /*! @@ -1102,9 +1120,9 @@ void QDeclarativeFlickable::setContentWidth(qreal w) return; d->hData.viewSize = w; if (w < 0) - d->viewport->setWidth(width()); + d->contentItem->setWidth(width()); else - d->viewport->setWidth(w); + d->contentItem->setWidth(w); // Make sure that we're entirely in view. if (!d->pressed && !d->movingHorizontally && !d->movingVertically) { int oldDuration = d->fixupDuration; @@ -1129,9 +1147,9 @@ void QDeclarativeFlickable::setContentHeight(qreal h) return; d->vData.viewSize = h; if (h < 0) - d->viewport->setHeight(height()); + d->contentItem->setHeight(height()); else - d->viewport->setHeight(h); + d->contentItem->setHeight(h); // Make sure that we're entirely in view. if (!d->pressed && !d->movingHorizontally && !d->movingVertically) { int oldDuration = d->fixupDuration; diff --git a/src/declarative/graphicsitems/qdeclarativeflickable_p.h b/src/declarative/graphicsitems/qdeclarativeflickable_p.h index d40a0dc..be4846e 100644 --- a/src/declarative/graphicsitems/qdeclarativeflickable_p.h +++ b/src/declarative/graphicsitems/qdeclarativeflickable_p.h @@ -60,6 +60,7 @@ class Q_DECLARATIVE_EXPORT QDeclarativeFlickable : public QDeclarativeItem Q_PROPERTY(qreal contentHeight READ contentHeight WRITE setContentHeight NOTIFY contentHeightChanged) Q_PROPERTY(qreal contentX READ contentX WRITE setContentX NOTIFY contentXChanged) Q_PROPERTY(qreal contentY READ contentY WRITE setContentY NOTIFY contentYChanged) + Q_PROPERTY(QDeclarativeItem *contentItem READ contentItem CONSTANT) Q_PROPERTY(qreal horizontalVelocity READ horizontalVelocity NOTIFY horizontalVelocityChanged) Q_PROPERTY(qreal verticalVelocity READ verticalVelocity NOTIFY verticalVelocityChanged) @@ -143,7 +144,7 @@ public: bool isAtYEnd() const; bool isAtYBeginning() const; - QDeclarativeItem *viewport(); + QDeclarativeItem *contentItem(); enum FlickableDirection { AutoFlickDirection=0x00, HorizontalFlick=0x01, VerticalFlick=0x02, HorizontalAndVerticalFlick=0x03 }; FlickableDirection flickDirection() const; // deprecated diff --git a/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h b/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h index 66d2678..b919e1b 100644 --- a/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h +++ b/src/declarative/graphicsitems/qdeclarativeflickable_p_p.h @@ -125,7 +125,7 @@ public: void itemGeometryChanged(QDeclarativeItem *, const QRectF &, const QRectF &); public: - QDeclarativeItem *viewport; + QDeclarativeItem *contentItem; AxisData hData; AxisData vData; diff --git a/src/declarative/graphicsitems/qdeclarativegridview.cpp b/src/declarative/graphicsitems/qdeclarativegridview.cpp index 14980a8..af9b04e 100644 --- a/src/declarative/graphicsitems/qdeclarativegridview.cpp +++ b/src/declarative/graphicsitems/qdeclarativegridview.cpp @@ -421,10 +421,10 @@ FxGridItem *QDeclarativeGridViewPrivate::createItem(int modelIndex) if (model->completePending()) { // complete listItem->item->setZValue(1); - listItem->item->setParentItem(q->viewport()); + listItem->item->setParentItem(q->contentItem()); model->completeItem(); } else { - listItem->item->setParentItem(q->viewport()); + listItem->item->setParentItem(q->contentItem()); } unrequestedItems.remove(listItem->item); } @@ -716,12 +716,12 @@ void QDeclarativeGridViewPrivate::createHighlight() } } else { item = new QDeclarativeItem; - QDeclarative_setParent_noEvent(item, q->viewport()); - item->setParentItem(q->viewport()); + QDeclarative_setParent_noEvent(item, q->contentItem()); + item->setParentItem(q->contentItem()); } if (item) { - QDeclarative_setParent_noEvent(item, q->viewport()); - item->setParentItem(q->viewport()); + QDeclarative_setParent_noEvent(item, q->contentItem()); + item->setParentItem(q->contentItem()); highlight = new FxGridItem(item, q); highlightXAnimator = new QSmoothedAnimation(q); highlightXAnimator->target = QDeclarativeProperty(highlight->item, QLatin1String("x")); @@ -808,8 +808,8 @@ void QDeclarativeGridViewPrivate::updateFooter() delete context; } if (item) { - QDeclarative_setParent_noEvent(item, q->viewport()); - item->setParentItem(q->viewport()); + QDeclarative_setParent_noEvent(item, q->contentItem()); + item->setParentItem(q->contentItem()); item->setZValue(1); QDeclarativeItemPrivate *itemPrivate = static_cast(QGraphicsItemPrivate::get(item)); itemPrivate->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry); @@ -854,8 +854,8 @@ void QDeclarativeGridViewPrivate::updateHeader() delete context; } if (item) { - QDeclarative_setParent_noEvent(item, q->viewport()); - item->setParentItem(q->viewport()); + QDeclarative_setParent_noEvent(item, q->contentItem()); + item->setParentItem(q->contentItem()); item->setZValue(1); QDeclarativeItemPrivate *itemPrivate = static_cast(QGraphicsItemPrivate::get(item)); itemPrivate->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry); diff --git a/src/declarative/graphicsitems/qdeclarativelistview.cpp b/src/declarative/graphicsitems/qdeclarativelistview.cpp index 35794c2..59bb178 100644 --- a/src/declarative/graphicsitems/qdeclarativelistview.cpp +++ b/src/declarative/graphicsitems/qdeclarativelistview.cpp @@ -421,7 +421,7 @@ public: void itemGeometryChanged(QDeclarativeItem *item, const QRectF &newGeometry, const QRectF &oldGeometry) { Q_Q(QDeclarativeListView); QDeclarativeFlickablePrivate::itemGeometryChanged(item, newGeometry, oldGeometry); - if (item != viewport && (!highlight || item != highlight->item)) { + if (item != contentItem && (!highlight || item != highlight->item)) { if ((orient == QDeclarativeListView::Vertical && newGeometry.height() != oldGeometry.height()) || (orient == QDeclarativeListView::Horizontal && newGeometry.width() != oldGeometry.width())) { scheduleLayout(); @@ -580,10 +580,10 @@ FxListItem *QDeclarativeListViewPrivate::createItem(int modelIndex) if (model->completePending()) { // complete listItem->item->setZValue(1); - listItem->item->setParentItem(q->viewport()); + listItem->item->setParentItem(q->contentItem()); model->completeItem(); } else { - listItem->item->setParentItem(q->viewport()); + listItem->item->setParentItem(q->contentItem()); } QDeclarativeItemPrivate *itemPrivate = static_cast(QGraphicsItemPrivate::get(item)); itemPrivate->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry); @@ -840,8 +840,8 @@ void QDeclarativeListViewPrivate::createHighlight() item = new QDeclarativeItem; } if (item) { - QDeclarative_setParent_noEvent(item, q->viewport()); - item->setParentItem(q->viewport()); + QDeclarative_setParent_noEvent(item, q->contentItem()); + item->setParentItem(q->contentItem()); highlight = new FxListItem(item, q); if (currentItem && autoHighlight) { if (orient == QDeclarativeListView::Vertical) { @@ -921,8 +921,8 @@ void QDeclarativeListViewPrivate::createSection(FxListItem *listItem) delete nobj; } else { listItem->section->setZValue(1); - QDeclarative_setParent_noEvent(listItem->section, q->viewport()); - listItem->section->setParentItem(q->viewport()); + QDeclarative_setParent_noEvent(listItem->section, q->contentItem()); + listItem->section->setParentItem(q->contentItem()); } } else { delete context; @@ -1046,8 +1046,8 @@ void QDeclarativeListViewPrivate::updateFooter() delete context; } if (item) { - QDeclarative_setParent_noEvent(item, q->viewport()); - item->setParentItem(q->viewport()); + QDeclarative_setParent_noEvent(item, q->contentItem()); + item->setParentItem(q->contentItem()); item->setZValue(1); QDeclarativeItemPrivate *itemPrivate = static_cast(QGraphicsItemPrivate::get(item)); itemPrivate->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry); @@ -1086,8 +1086,8 @@ void QDeclarativeListViewPrivate::updateHeader() delete context; } if (item) { - QDeclarative_setParent_noEvent(item, q->viewport()); - item->setParentItem(q->viewport()); + QDeclarative_setParent_noEvent(item, q->contentItem()); + item->setParentItem(q->contentItem()); item->setZValue(1); QDeclarativeItemPrivate *itemPrivate = static_cast(QGraphicsItemPrivate::get(item)); itemPrivate->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry); @@ -2983,7 +2983,7 @@ void QDeclarativeListView::createdItem(int index, QDeclarativeItem *item) { Q_D(QDeclarativeListView); if (d->requestedIndex != index) { - item->setParentItem(viewport()); + item->setParentItem(contentItem()); d->unrequestedItems.insert(item, index); if (d->orient == QDeclarativeListView::Vertical) item->setY(d->positionAt(index)); diff --git a/tests/auto/declarative/qdeclarativeflickable/data/flickable04.qml b/tests/auto/declarative/qdeclarativeflickable/data/flickable04.qml index aa156ed..a840a01 100644 --- a/tests/auto/declarative/qdeclarativeflickable/data/flickable04.qml +++ b/tests/auto/declarative/qdeclarativeflickable/data/flickable04.qml @@ -1,6 +1,12 @@ import Qt 4.7 Flickable { + property bool ok: false + function check() { + if (column.parent == contentItem) + ok = true; + } + width: 100; height: 100 contentWidth: column.width; contentHeight: column.height pressDelay: 200; boundsBehavior: Flickable.StopAtBounds; interactive: false diff --git a/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp b/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp index 2ba5574..678996b 100644 --- a/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp +++ b/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp @@ -147,6 +147,10 @@ void tst_qdeclarativeflickable::properties() QCOMPARE(obj->pressDelay(), 200); QCOMPARE(obj->maximumFlickVelocity(), 2000.); + QVERIFY(obj->property("ok").toBool() == false); + QMetaObject::invokeMethod(obj, "check"); + QVERIFY(obj->property("ok").toBool() == true); + delete obj; } -- cgit v0.12