diff options
| -rw-r--r-- | src/quick/items/qquickpathview.cpp | 44 | ||||
| -rw-r--r-- | tests/auto/quick/qquickpathview/data/qtbug37815.qml | 77 | ||||
| -rw-r--r-- | tests/auto/quick/qquickpathview/tst_qquickpathview.cpp | 26 |
3 files changed, 129 insertions, 18 deletions
diff --git a/src/quick/items/qquickpathview.cpp b/src/quick/items/qquickpathview.cpp index 1dbdd10303..f858b18c84 100644 --- a/src/quick/items/qquickpathview.cpp +++ b/src/quick/items/qquickpathview.cpp @@ -289,6 +289,8 @@ qreal QQuickPathViewPrivate::positionOfIndex(qreal index) const // account the circular space. bool QQuickPathViewPrivate::isInBound(qreal position, qreal lower, qreal upper) const { + if (lower == upper) + return true; if (lower > upper) { if (position > upper && position > lower) position -= mappedRange; @@ -2047,27 +2049,33 @@ void QQuickPathView::refill() idx = startIdx; QQuickItem *lastItem = d->items[0]; while (idx != endIdx) { - //This gets the reference from the delegate model, and will not re-create - QQuickItem *item = d->getItem(idx, idx+1, nextPos >= 1.0); - if (!item) { - waiting = true; - break; - } - if (!d->items.contains(item)) { //We found a hole - nextPos = d->positionOfIndex(idx); - qCDebug(lcItemViewDelegateLifecycle) << "middle insert" << idx << "@" << nextPos << (d->currentIndex == idx ? "current" : "") << "items count was" << d->items.count(); - if (d->currentIndex == idx) { - currentVisible = true; - d->currentItemOffset = nextPos; + nextPos = d->positionOfIndex(idx); + if (d->isInBound(nextPos, d->mappedRange - d->mappedCache, 1.0 + d->mappedCache)) { + //This gets the reference from the delegate model, and will not re-create + QQuickItem *item = d->getItem(idx, idx+1, nextPos >= 1.0); + if (!item) { + waiting = true; + break; } - int lastListIdx = d->items.indexOf(lastItem); - d->items.insert(lastListIdx + 1, item); - d->updateItem(item, nextPos); - } else { - d->releaseItem(item); + + if (!d->items.contains(item)) { //We found a hole + qCDebug(lcItemViewDelegateLifecycle) << "middle insert" << idx << "@" << nextPos + << (d->currentIndex == idx ? "current" : "") + << "items count was" << d->items.count(); + if (d->currentIndex == idx) { + currentVisible = true; + d->currentItemOffset = nextPos; + } + int lastListIdx = d->items.indexOf(lastItem); + d->items.insert(lastListIdx + 1, item); + d->updateItem(item, nextPos); + } else { + d->releaseItem(item); + } + + lastItem = item; } - lastItem = item; ++idx; if (idx >= d->modelCount) idx = 0; diff --git a/tests/auto/quick/qquickpathview/data/qtbug37815.qml b/tests/auto/quick/qquickpathview/data/qtbug37815.qml new file mode 100644 index 0000000000..3fd4daca63 --- /dev/null +++ b/tests/auto/quick/qquickpathview/data/qtbug37815.qml @@ -0,0 +1,77 @@ +/**************************************************************************** +** +** Copyright (C) 2016 Netris +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the test suite of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.0 + +Rectangle { + width: 600 + height: 400 + PathView { + objectName: "pathView" + model: 10 + anchors.fill: parent + pathItemCount: 5 + cacheItemCount: 5 + highlightRangeMode: PathView.StrictlyEnforceRange + preferredHighlightBegin: 0.5 + preferredHighlightEnd: 0.5 + + path: Path { + startX: 0 + startY: 50 + PathLine { + x: 600 + y: 50 + } + } + + delegate: Component { + Text { + width: 50 + height: 50 + text: index + objectName: "delegate" + index + font.pixelSize: 24 + color: PathView.isCurrentItem ? "green" : "black" + } + } + } +} + diff --git a/tests/auto/quick/qquickpathview/tst_qquickpathview.cpp b/tests/auto/quick/qquickpathview/tst_qquickpathview.cpp index 2046391d02..493af97521 100644 --- a/tests/auto/quick/qquickpathview/tst_qquickpathview.cpp +++ b/tests/auto/quick/qquickpathview/tst_qquickpathview.cpp @@ -140,6 +140,7 @@ private slots: void nestedinFlickable(); void flickableDelegate(); void jsArrayChange(); + void qtbug37815(); void qtbug42716(); void qtbug53464(); void addCustomAttribute(); @@ -2334,6 +2335,31 @@ void tst_QQuickPathView::jsArrayChange() QCOMPARE(spy.count(), 1); } +void tst_QQuickPathView::qtbug37815() +{ + QScopedPointer<QQuickView> window(createView()); + + window->setSource(testFileUrl("qtbug37815.qml")); + window->show(); + window->requestActivate(); + QVERIFY(QTest::qWaitForWindowActive(window.data())); + + // cache items will be created async. Let's wait... + QTest::qWait(1000); + + QQuickPathView *pathView = findItem<QQuickPathView>(window->rootObject(), "pathView"); + QVERIFY(pathView != Q_NULLPTR); + + const int pathItemCount = pathView->pathItemCount(); + const int cacheItemCount = pathView->cacheItemCount(); + int totalCount = 0; + foreach (QQuickItem *item, pathView->childItems()) { + if (item->objectName().startsWith(QLatin1String("delegate"))) + ++totalCount; + } + QCOMPARE(pathItemCount + cacheItemCount, totalCount); +} + /* This bug was one where if you jump the list such that the sole missing item needed to be * added in the middle of the list, it would instead move an item somewhere else in the list * to the middle (messing it up very badly). |