- Qt 5.5
- Qt Widgets
- Tab Dialog Example
- tabdialog.cpp Example File
- Qt 5.5.1 Reference Documentation

# tabdialog.cpp Example File

dialogs/tabdialog/tabdialog.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples 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
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    **     contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
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    #include <QtWidgets>

    #include "tabdialog.h"

    TabDialog::TabDialog(const QString &fileName, QWidget *parent)
        : QDialog(parent)
    {
        QFileInfo fileInfo(fileName);

        tabWidget = new QTabWidget;
        tabWidget->addTab(new GeneralTab(fileInfo), tr("General"));
        tabWidget->addTab(new PermissionsTab(fileInfo), tr("Permissions"));
        tabWidget->addTab(new ApplicationsTab(fileInfo), tr("Applications"));

        buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
                                         | QDialogButtonBox::Cancel);

        connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
        connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));

        QVBoxLayout *mainLayout = new QVBoxLayout;
        mainLayout->addWidget(tabWidget);
        mainLayout->addWidget(buttonBox);
        setLayout(mainLayout);

        setWindowTitle(tr("Tab Dialog"));
    }

    GeneralTab::GeneralTab(const QFileInfo &fileInfo, QWidget *parent)
        : QWidget(parent)
    {
        QLabel *fileNameLabel = new QLabel(tr("File Name:"));
        QLineEdit *fileNameEdit = new QLineEdit(fileInfo.fileName());

        QLabel *pathLabel = new QLabel(tr("Path:"));
        QLabel *pathValueLabel = new QLabel(fileInfo.absoluteFilePath());
        pathValueLabel->setFrameStyle(QFrame::Panel | QFrame::Sunken);

        QLabel *sizeLabel = new QLabel(tr("Size:"));
        qlonglong size = fileInfo.size()/1024;
        QLabel *sizeValueLabel = new QLabel(tr("%1 K").arg(size));
        sizeValueLabel->setFrameStyle(QFrame::Panel | QFrame::Sunken);

        QLabel *lastReadLabel = new QLabel(tr("Last Read:"));
        QLabel *lastReadValueLabel = new QLabel(fileInfo.lastRead().toString());
        lastReadValueLabel->setFrameStyle(QFrame::Panel | QFrame::Sunken);

        QLabel *lastModLabel = new QLabel(tr("Last Modified:"));
        QLabel *lastModValueLabel = new QLabel(fileInfo.lastModified().toString());
        lastModValueLabel->setFrameStyle(QFrame::Panel | QFrame::Sunken);

        QVBoxLayout *mainLayout = new QVBoxLayout;
        mainLayout->addWidget(fileNameLabel);
        mainLayout->addWidget(fileNameEdit);
        mainLayout->addWidget(pathLabel);
        mainLayout->addWidget(pathValueLabel);
        mainLayout->addWidget(sizeLabel);
        mainLayout->addWidget(sizeValueLabel);
        mainLayout->addWidget(lastReadLabel);
        mainLayout->addWidget(lastReadValueLabel);
        mainLayout->addWidget(lastModLabel);
        mainLayout->addWidget(lastModValueLabel);
        mainLayout->addStretch(1);
        setLayout(mainLayout);
    }

    PermissionsTab::PermissionsTab(const QFileInfo &fileInfo, QWidget *parent)
        : QWidget(parent)
    {
        QGroupBox *permissionsGroup = new QGroupBox(tr("Permissions"));

        QCheckBox *readable = new QCheckBox(tr("Readable"));
        if (fileInfo.isReadable())
            readable->setChecked(true);

        QCheckBox *writable = new QCheckBox(tr("Writable"));
        if ( fileInfo.isWritable() )
            writable->setChecked(true);

        QCheckBox *executable = new QCheckBox(tr("Executable"));
        if ( fileInfo.isExecutable() )
            executable->setChecked(true);

        QGroupBox *ownerGroup = new QGroupBox(tr("Ownership"));

        QLabel *ownerLabel = new QLabel(tr("Owner"));
        QLabel *ownerValueLabel = new QLabel(fileInfo.owner());
        ownerValueLabel->setFrameStyle(QFrame::Panel | QFrame::Sunken);

        QLabel *groupLabel = new QLabel(tr("Group"));
        QLabel *groupValueLabel = new QLabel(fileInfo.group());
        groupValueLabel->setFrameStyle(QFrame::Panel | QFrame::Sunken);

        QVBoxLayout *permissionsLayout = new QVBoxLayout;
        permissionsLayout->addWidget(readable);
        permissionsLayout->addWidget(writable);
        permissionsLayout->addWidget(executable);
        permissionsGroup->setLayout(permissionsLayout);

        QVBoxLayout *ownerLayout = new QVBoxLayout;
        ownerLayout->addWidget(ownerLabel);
        ownerLayout->addWidget(ownerValueLabel);
        ownerLayout->addWidget(groupLabel);
        ownerLayout->addWidget(groupValueLabel);
        ownerGroup->setLayout(ownerLayout);

        QVBoxLayout *mainLayout = new QVBoxLayout;
        mainLayout->addWidget(permissionsGroup);
        mainLayout->addWidget(ownerGroup);
        mainLayout->addStretch(1);
        setLayout(mainLayout);
    }

    ApplicationsTab::ApplicationsTab(const QFileInfo &fileInfo, QWidget *parent)
        : QWidget(parent)
    {
        QLabel *topLabel = new QLabel(tr("Open with:"));

        QListWidget *applicationsListBox = new QListWidget;
        QStringList applications;

        for (int i = 1; i <= 30; ++i)
            applications.append(tr("Application %1").arg(i));
        applicationsListBox->insertItems(0, applications);

        QCheckBox *alwaysCheckBox;

        if (fileInfo.suffix().isEmpty())
            alwaysCheckBox = new QCheckBox(tr("Always use this application to "
                "open this type of file"));
        else
            alwaysCheckBox = new QCheckBox(tr("Always use this application to "
                "open files with the extension '%1'").arg(fileInfo.suffix()));

        QVBoxLayout *layout = new QVBoxLayout;
        layout->addWidget(topLabel);
        layout->addWidget(applicationsListBox);
        layout->addWidget(alwaysCheckBox);
        setLayout(layout);
    }