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C++ TreeModel::rowCount方法代码示例

本文整理汇总了C++中TreeModel::rowCount方法的典型用法代码示例。如果您正苦于以下问题:C++ TreeModel::rowCount方法的具体用法?C++ TreeModel::rowCount怎么用?C++ TreeModel::rowCount使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在TreeModel的用法示例。


在下文中一共展示了TreeModel::rowCount方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: preview

void tst_QColumnView::preview()
{
    QColumnView view;
    QCOMPARE(view.previewWidget(), (QWidget*)0);
    TreeModel model;
    view.setModel(&model);
    QCOMPARE(view.previewWidget(), (QWidget*)0);
    QModelIndex home = model.index(0, 0);
    QVERIFY(home.isValid());
    QVERIFY(model.hasChildren(home));
    view.setCurrentIndex(home);
    QCOMPARE(view.previewWidget(), (QWidget*)0);

    QModelIndex file;
    QVERIFY(model.rowCount(home) > 0);
    for (int i = 0; i < model.rowCount(home); ++i) {
        if (!model.hasChildren(model.index(i, 0, home))) {
            file = model.index(i, 0, home);
            break;
        }
    }
    QVERIFY(file.isValid());
    view.setCurrentIndex(file);
    QVERIFY(view.previewWidget() != (QWidget*)0);

    QWidget *previewWidget = new QWidget(&view);
    view.setPreviewWidget(previewWidget);
    QCOMPARE(view.previewWidget(), previewWidget);
    QVERIFY(previewWidget->parent() != ((QWidget*)&view));
    view.setCurrentIndex(home);

    // previewWidget should be marked for deletion
    QWidget *previewWidget2 = new QWidget(&view);
    view.setPreviewWidget(previewWidget2);
    QCOMPARE(view.previewWidget(), previewWidget2);
}
开发者ID:Mr-Kumar-Abhishek,项目名称:qt,代码行数:36,代码来源:tst_qcolumnview.cpp

示例2: changeSameColumn

void tst_QColumnView::changeSameColumn()
{
    ColumnView view;
    TreeModel model;
    view.setModel(&model);
    QModelIndex second;

    QModelIndex home = model.secondLevel();
    //index(QDir::homePath());
    view.setCurrentIndex(home);
    for (int i = 0; i < model.rowCount(home.parent()); ++i) {
        QModelIndex idx = model.index(i, 0, home.parent());
        if (model.hasChildren(idx) && idx != home) {
            second = idx;
            break;
        }
    }
    QVERIFY(second.isValid());

    QList<QPointer<QAbstractItemView> > old = view.createdColumns;
    view.setCurrentIndex(second);

    QCOMPARE(old, view.createdColumns);
}
开发者ID:Mr-Kumar-Abhishek,项目名称:qt,代码行数:24,代码来源:tst_qcolumnview.cpp

示例3: rootIndex

void tst_QColumnView::rootIndex()
{
    ColumnView view;
    // no model
    view.setRootIndex(QModelIndex());

    TreeModel model;
    view.setModel(&model);

    // A top level index
    QModelIndex drive = model.firstLevel();
    QVERIFY(view.visualRect(drive).isValid());
    view.setRootIndex(QModelIndex());
    QCOMPARE(view.HorizontalOffset(), 0);
    QCOMPARE(view.rootIndex(), QModelIndex());
    QVERIFY(view.visualRect(drive).isValid());

    // A item under the rootIndex exists
    QModelIndex home = model.thirdLevel();
    QModelIndex homeFile = model.index(0, 0, home);
    int i = 0;
    while (i < model.rowCount(home) - 1 && !model.hasChildren(homeFile))
        homeFile = model.index(++i, 0, home);
    view.setRootIndex(home);
    QCOMPARE(view.HorizontalOffset(), 0);
    QCOMPARE(view.rootIndex(), home);
    QVERIFY(!view.visualRect(drive).isValid());
    QVERIFY(!view.visualRect(home).isValid());
    if (homeFile.isValid())
        QVERIFY(view.visualRect(homeFile).isValid());

    // set root when there already is one and everything should still be ok
    view.setRootIndex(home);
    view.setCurrentIndex(homeFile);
    view.scrollTo(model.index(0,0, homeFile));
    QCOMPARE(view.HorizontalOffset(), 0);
    QCOMPARE(view.rootIndex(), home);
    QVERIFY(!view.visualRect(drive).isValid());
    QVERIFY(!view.visualRect(home).isValid());
     if (homeFile.isValid())
        QVERIFY(view.visualRect(homeFile).isValid());

    //
    homeFile = model.thirdLevel();
    home = homeFile.parent();
    view.setRootIndex(home);
    view.setCurrentIndex(homeFile);
    view.show();
    i = 0;
    QModelIndex two = model.index(0, 0, homeFile);
    while (i < model.rowCount(homeFile) - 1 && !model.hasChildren(two))
        two = model.index(++i, 0, homeFile);
    qApp->processEvents();
    QTest::qWait(ANIMATION_DELAY);
    view.setCurrentIndex(two);
    view.scrollTo(two);
    QTest::qWait(ANIMATION_DELAY);
    qApp->processEvents();
    QVERIFY(two.isValid());
    QVERIFY(view.HorizontalOffset() != 0);

    view.setRootIndex(homeFile);
    QCOMPARE(view.HorizontalOffset(), 0);
}
开发者ID:Mr-Kumar-Abhishek,项目名称:qt,代码行数:64,代码来源:tst_qcolumnview.cpp


注:本文中的TreeModel::rowCount方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。