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authorJason McDonald <jason.mcdonald@nokia.com>2010-11-18 01:19:33 (GMT)
committerJason McDonald <jason.mcdonald@nokia.com>2010-11-18 01:19:33 (GMT)
commit051793b7558ed16dfcb84f62ce3bd4a1545906a7 (patch)
tree2496fdaec40857e9982c93d18107e09e233145d4 /src/declarative/graphicsitems/qdeclarativepathview.cpp
parent14ddf44ce2fdd7195741b9683226a3cd774e17e4 (diff)
parentcca7c5b40751e2192ba2c7c7422557eeb5672a17 (diff)
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Merge remote branch 'qt/4.7' into 4.7
Conflicts: tools/qdoc3/test/qt-build-docs.qdocconf tools/qdoc3/test/qt.qdocconf
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativepathview.cpp')
-rw-r--r--src/declarative/graphicsitems/qdeclarativepathview.cpp48
1 files changed, 37 insertions, 11 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativepathview.cpp b/src/declarative/graphicsitems/qdeclarativepathview.cpp
index dc3d5ee..7c79afe 100644
--- a/src/declarative/graphicsitems/qdeclarativepathview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativepathview.cpp
@@ -373,7 +373,21 @@ void QDeclarativePathViewPrivate::regenerate()
opacity of the items as they rotate. This additional code can be seen in the
PathAttribute documentation.)
- The \c focus can be set to \c true to enable keyboard navigation.
+ PathView does not automatically handle keyboard navigation. This is because
+ the keys to use for navigation will depend upon the shape of the path. Navigation
+ can be added quite simply by setting \c focus to \c true and calling
+ \l decrementCurrentIndex() or \l incrementCurrentIndex(), for example to navigate
+ using the left and right arrow keys:
+
+ \code
+ PathView {
+ ...
+ focus: true
+ Keys.onLeftPressed: decrementCurrentIndex()
+ Keys.onRightPressed: incrementCurrentIndex()
+ }
+ \endcode
+
The path view itself is a focus scope (see \l{qmlfocus#Acquiring Focus and Focus Scopes}{the focus documentation page} for more details).
Delegates are instantiated as needed and may be destroyed at any time.
@@ -523,7 +537,6 @@ int QDeclarativePathView::count() const
/*!
\qmlproperty Path PathView::path
- \default
This property holds the path used to lay out the items.
For more information see the \l Path documentation.
*/
@@ -607,6 +620,8 @@ void QDeclarativePathView::setCurrentIndex(int idx)
*/
void QDeclarativePathView::incrementCurrentIndex()
{
+ Q_D(QDeclarativePathView);
+ d->moveDirection = QDeclarativePathViewPrivate::Positive;
setCurrentIndex(currentIndex()+1);
}
@@ -625,6 +640,7 @@ void QDeclarativePathView::decrementCurrentIndex()
int idx = currentIndex()-1;
if (idx < 0)
idx = d->modelCount - 1;
+ d->moveDirection = QDeclarativePathViewPrivate::Negative;
setCurrentIndex(idx);
}
}
@@ -995,6 +1011,7 @@ void QDeclarativePathView::setDelegate(QDeclarativeComponent *delegate)
}
if (QDeclarativeVisualDataModel *dataModel = qobject_cast<QDeclarativeVisualDataModel*>(d->model)) {
dataModel->setDelegate(delegate);
+ d->modelCount = dataModel->count();
d->regenerate();
emit delegateChanged();
}
@@ -1636,7 +1653,7 @@ void QDeclarativePathViewPrivate::snapToCurrent()
if (!model || modelCount <= 0)
return;
- qreal targetOffset = modelCount - currentIndex;
+ qreal targetOffset = qmlMod(modelCount - currentIndex, modelCount);
moveReason = Other;
offsetAdj = 0.0;
@@ -1645,19 +1662,28 @@ void QDeclarativePathViewPrivate::snapToCurrent()
const int duration = highlightMoveDuration;
- if (targetOffset - offset > modelCount/2) {
+ if (moveDirection == Positive || (moveDirection == Shortest && targetOffset - offset > modelCount/2)) {
qreal distance = modelCount - targetOffset + offset;
- tl.move(moveOffset, 0.0, QEasingCurve(QEasingCurve::InQuad), int(duration * offset / distance));
- tl.set(moveOffset, modelCount);
- tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::OutQuad), int(duration * (modelCount-targetOffset) / distance));
- } else if (targetOffset - offset <= -modelCount/2) {
+ if (targetOffset > moveOffset) {
+ tl.move(moveOffset, 0.0, QEasingCurve(QEasingCurve::InQuad), int(duration * offset / distance));
+ tl.set(moveOffset, modelCount);
+ tl.move(moveOffset, targetOffset, QEasingCurve(offset == 0.0 ? QEasingCurve::InOutQuad : QEasingCurve::OutQuad), int(duration * (modelCount-targetOffset) / distance));
+ } else {
+ tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::InOutQuad), duration);
+ }
+ } else if (moveDirection == Negative || targetOffset - offset <= -modelCount/2) {
qreal distance = modelCount - offset + targetOffset;
- tl.move(moveOffset, modelCount, QEasingCurve(QEasingCurve::InQuad), int(duration * (modelCount-offset) / distance));
- tl.set(moveOffset, 0.0);
- tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::OutQuad), int(duration * targetOffset / distance));
+ if (targetOffset < moveOffset) {
+ tl.move(moveOffset, modelCount, QEasingCurve(targetOffset == 0 ? QEasingCurve::InOutQuad : QEasingCurve::InQuad), int(duration * (modelCount-offset) / distance));
+ tl.set(moveOffset, 0.0);
+ tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::OutQuad), int(duration * targetOffset / distance));
+ } else {
+ tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::InOutQuad), duration);
+ }
} else {
tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::InOutQuad), duration);
}
+ moveDirection = Shortest;
}
QDeclarativePathViewAttached *QDeclarativePathView::qmlAttachedProperties(QObject *obj)