diff options
Diffstat (limited to 'tests/auto/widgets/widgets/qabstractscrollarea/tst_qabstractscrollarea.cpp')
| -rw-r--r-- | tests/auto/widgets/widgets/qabstractscrollarea/tst_qabstractscrollarea.cpp | 127 |
1 files changed, 97 insertions, 30 deletions
diff --git a/tests/auto/widgets/widgets/qabstractscrollarea/tst_qabstractscrollarea.cpp b/tests/auto/widgets/widgets/qabstractscrollarea/tst_qabstractscrollarea.cpp index 86a5ebc114..fa1f799855 100644 --- a/tests/auto/widgets/widgets/qabstractscrollarea/tst_qabstractscrollarea.cpp +++ b/tests/auto/widgets/widgets/qabstractscrollarea/tst_qabstractscrollarea.cpp @@ -1,33 +1,8 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the test suite of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:GPL-EXCEPT$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3 as published by the Free Software -** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - - -#include <QtTest/QtTest> +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only + + +#include <QTest> #include <qcoreapplication.h> #include <qdebug.h> @@ -37,6 +12,8 @@ #include <qlabel.h> #include <qwidget.h> #include <qdialog.h> +#include <qscroller.h> +#include <qstyle.h> class tst_QAbstractScrollArea : public QObject { @@ -57,6 +34,8 @@ private slots: void task214488_layoutDirection(); void margins(); + void resizeWithOvershoot(); + void sizeHint(); }; tst_QAbstractScrollArea::tst_QAbstractScrollArea() @@ -394,5 +373,93 @@ void tst_QAbstractScrollArea::margins() QCOMPARE(area.viewportMargins(), margins); } +void tst_QAbstractScrollArea::resizeWithOvershoot() +{ + QWidget window; + + QScrollArea scrollArea(&window); + scrollArea.setWidget([]{ + QWidget *widget = new QWidget; + widget->setFixedSize(QSize(0, 200)); + return widget; + }()); + scrollArea.setGeometry(0, 20, 100, 100); + + QScroller::grabGesture(&scrollArea, QScroller::LeftMouseButtonGesture); + + window.show(); + QVERIFY(QTest::qWaitForWindowExposed(&window)); + + const QPoint originAtRest = scrollArea.viewport()->pos(); + + QPoint center = scrollArea.viewport()->mapToGlobal(scrollArea.viewport()->rect().center()); + center = window.windowHandle()->mapFromGlobal(center); + QTest::mousePress(window.windowHandle(), Qt::LeftButton, {}, center); + QTest::mouseMove(window.windowHandle(), center + QPoint(0, 50)); + QTRY_COMPARE(scrollArea.viewport()->pos(), originAtRest + QPoint(0, 25)); + QPoint overshootPosition = scrollArea.viewport()->pos(); + + // trigger a layout of the scroll area while there's overshoot + scrollArea.setGeometry(0, 0, 100, 120); + QCOMPARE(scrollArea.viewport()->pos(), overshootPosition); + QTest::mouseRelease(window.windowHandle(), Qt::LeftButton, {}, center + QPoint(0, 50)); + QTRY_COMPARE(scrollArea.viewport()->pos(), originAtRest); + // Process a few more events and verify that the scroll area + // doesn't overcompensate for the overshoot. + QApplication::processEvents(); + QTRY_COMPARE(scrollArea.viewport()->pos(), originAtRest); +} + +void tst_QAbstractScrollArea::sizeHint() +{ + class ScrollArea : public QAbstractScrollArea + { + public: + QSize viewportSizeHint() const override { return {200, 200}; } + } scrollArea; + // We cannot reliable test the impact of the scrollbars on the size hint + // if the style uses transient scrollbars, so use the class Windows style. + const QString defaultStyle = QApplication::style()->name(); + QApplication::setStyle("Windows"); + auto resetStyle = qScopeGuard([defaultStyle]{ + QApplication::setStyle(defaultStyle); + }); + scrollArea.setFrameShape(QFrame::NoFrame); + scrollArea.setSizeAdjustPolicy(QAbstractScrollArea::AdjustToContents); + scrollArea.show(); + + QSize sizeHint = scrollArea.sizeHint(); + QCOMPARE(sizeHint, scrollArea.viewportSizeHint()); + + scrollArea.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn); + scrollArea.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn); + const QSize sizeHintWithScrollBars = scrollArea.sizeHint(); + QTRY_COMPARE_GT(sizeHintWithScrollBars.width(), sizeHint.width()); + QTRY_COMPARE_GT(sizeHintWithScrollBars.height(), sizeHint.height()); + + sizeHint = scrollArea.sizeHint(); + + // whether the scroll area itself is visible or not should not influence + // the size hint + scrollArea.hide(); + QCOMPARE(scrollArea.sizeHint(), sizeHint); + scrollArea.show(); + QCOMPARE(scrollArea.sizeHint(), sizeHint); + + scrollArea.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); + scrollArea.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); + + QCOMPARE(scrollArea.sizeHint(), scrollArea.viewportSizeHint()); + + scrollArea.setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded); + scrollArea.setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded); + + scrollArea.verticalScrollBar()->setRange(0, 1); + scrollArea.horizontalScrollBar()->setRange(0, 1); + scrollArea.resize(sizeHint / 2); + QApplication::processEvents(); // trigger lazy layout process + QCOMPARE(scrollArea.sizeHint(), sizeHintWithScrollBars); +} + QTEST_MAIN(tst_QAbstractScrollArea) #include "tst_qabstractscrollarea.moc" |