5d7f113320
Commit b6ded193 added an unconditional dereference
of the platformScreen pointer, for calls where nativePostion
is non-nullptr.
Change-Id: I4a6fbbd0337f91d4fcb76c17b4dc60e1b9ad10ed
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
96 lines
3.6 KiB
C++
96 lines
3.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2019 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <private/qhighdpiscaling_p.h>
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#include <qpa/qplatformscreen.h>
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#include <QtTest/QtTest>
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class tst_QHighDpiScaling: public QObject
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{
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Q_OBJECT
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private slots:
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void factor();
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void scale();
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};
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// Emulate the case of a High DPI secondary screen
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class MyPlatformScreen : public QPlatformScreen
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{
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public:
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QRect geometry() const override { return QRect(3840, 0, 3840, 1920); }
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QRect availableGeometry() const override { return geometry(); }
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int depth() const override { return 32; }
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QImage::Format format() const override { return QImage::Format_ARGB32_Premultiplied; }
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};
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void tst_QHighDpiScaling::factor()
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{
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QHighDpiScaling::setGlobalFactor(2);
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// Verfy that QHighDpiScaling::factor() does not crash on nullptr contexts.
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QPoint fakeNativePosition = QPoint(5, 5);
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QPlatformScreen *screenContext = nullptr;
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QVERIFY(QHighDpiScaling::factor(screenContext) >= 0);
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QVERIFY(QHighDpiScaling::factor(screenContext, &fakeNativePosition) >= 0);
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QPlatformScreen *platformScreenContext = nullptr;
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QVERIFY(QHighDpiScaling::factor(platformScreenContext) >= 0);
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QVERIFY(QHighDpiScaling::factor(platformScreenContext, &fakeNativePosition) >= 0);
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QWindow *windowContext = nullptr;
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QVERIFY(QHighDpiScaling::factor(windowContext) >= 0);
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QVERIFY(QHighDpiScaling::factor(windowContext, &fakeNativePosition) >= 0);
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}
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// QTBUG-77255: Test some scaling overloads
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void tst_QHighDpiScaling::scale()
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{
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QHighDpiScaling::setGlobalFactor(2);
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QScopedPointer<QPlatformScreen> screen(new MyPlatformScreen);
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qreal nativeValue = 10;
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const qreal value = QHighDpi::fromNativePixels(nativeValue, screen.data());
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QCOMPARE(value, qreal(5));
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QCOMPARE(QHighDpi::toNativePixels(value, screen.data()), nativeValue);
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// 10, 10 within screen should translate to 5,5 with origin preserved
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const QPoint nativePoint = screen->geometry().topLeft() + QPoint(10, 10);
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const QPoint point = QHighDpi::fromNativePixels(nativePoint, screen.data());
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QCOMPARE(point, QPoint(3845, 5));
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QCOMPARE(QHighDpi::toNativePixels(point, screen.data()), nativePoint);
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const QPointF nativePointF(nativePoint);
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const QPointF pointF = QHighDpi::fromNativePixels(nativePointF, screen.data());
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QCOMPARE(pointF, QPointF(3845, 5));
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QCOMPARE(QHighDpi::toNativePixels(pointF, screen.data()), nativePointF);
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}
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#include "tst_qhighdpiscaling.moc"
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QTEST_MAIN(tst_QHighDpiScaling);
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