mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-23 20:10:48 +08:00
96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <QTest>
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#include <QGraphicsLinearLayout>
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#include <QGraphicsWidget>
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#include <QGraphicsView>
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class tst_QGraphicsLinearLayout : public QObject
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{
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Q_OBJECT
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public:
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tst_QGraphicsLinearLayout() {}
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~tst_QGraphicsLinearLayout() {}
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private slots:
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void heightForWidth_data();
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void heightForWidth();
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};
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struct MySquareWidget : public QGraphicsWidget
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{
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MySquareWidget() {}
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QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const override
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{
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if (which != Qt::PreferredSize)
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return QGraphicsWidget::sizeHint(which, constraint);
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if (constraint.width() < 0)
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return QGraphicsWidget::sizeHint(which, constraint);
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return QSizeF(constraint.width(), constraint.width());
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}
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};
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void tst_QGraphicsLinearLayout::heightForWidth_data()
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{
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QTest::addColumn<bool>("hfw");
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QTest::addColumn<bool>("nested");
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QTest::newRow("hfw") << true << false;
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QTest::newRow("hfw, nested") << true << true;
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QTest::newRow("not hfw") << false << false;
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QTest::newRow("not hfw, nested") << false << true;
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}
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void tst_QGraphicsLinearLayout::heightForWidth()
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{
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QFETCH(bool, hfw);
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QFETCH(bool, nested);
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QGraphicsScene scene;
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QGraphicsWidget *form = new QGraphicsWidget;
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scene.addItem(form);
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QGraphicsLinearLayout *outerlayout = 0;
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if (nested) {
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outerlayout = new QGraphicsLinearLayout(form);
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for (int i = 0; i < 8; i++) {
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QGraphicsLinearLayout *layout = new QGraphicsLinearLayout(Qt::Vertical);
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outerlayout->addItem(layout);
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outerlayout = layout;
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}
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}
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QGraphicsLinearLayout *qlayout = 0;
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qlayout = new QGraphicsLinearLayout(Qt::Vertical);
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if (nested)
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outerlayout->addItem(qlayout);
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else
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form->setLayout(qlayout);
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MySquareWidget *widget = new MySquareWidget;
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for (int i = 0; i < 1; i++) {
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widget = new MySquareWidget;
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QSizePolicy sizepolicy = widget->sizePolicy();
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sizepolicy.setHeightForWidth(hfw);
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widget->setSizePolicy(sizepolicy);
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qlayout->addItem(widget);
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}
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// make sure only one iteration is done.
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// run with tst_QGraphicsLinearLayout.exe "heightForWidth" -tickcounter -iterations 6
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// this will iterate 6 times the whole test, (not only the benchmark)
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// which should reduce warmup time and give a realistic picture of the performance of
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// effectiveSizeHint()
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QSizeF constraint(hfw ? 100 : -1, -1);
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QBENCHMARK {
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(void)form->effectiveSizeHint(Qt::PreferredSize, constraint);
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}
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}
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QTEST_MAIN(tst_QGraphicsLinearLayout)
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#include "tst_qgraphicslinearlayout.moc"
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