qt 6.5.1 original

examples/widgets/itemviews/storageview/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(storageview LANGUAGES CXX)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/itemviews/storageview")
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+
+qt_standard_project_setup()
+
+qt_add_executable(storageview
+    main.cpp
+    storagemodel.cpp storagemodel.h
+)
+
+set_target_properties(storageview PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+
+target_link_libraries(storageview PRIVATE
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+)
+
+install(TARGETS storageview
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)

examples/widgets/itemviews/storageview/main.cpp

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+// Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2016 Ivan Komissarov
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QApplication>
+#include <QShortcut>
+#include <QTreeView>
+
+#include "storagemodel.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+
+    QTreeView view;
+    view.resize(640, 480);
+    view.setWindowTitle("Storage View");
+    view.setSelectionBehavior(QAbstractItemView::SelectRows);
+
+    StorageModel *model = new StorageModel(&view);
+    model->refresh();
+    QShortcut *refreshShortcut = new QShortcut(QKeySequence::Refresh, &view);
+    QObject::connect(refreshShortcut, &QShortcut::activated, model, &StorageModel::refresh);
+    view.setModel(model);
+
+    int columnCount = view.model()->columnCount();
+    for (int c = 0; c < columnCount; ++c)
+        view.resizeColumnToContents(c);
+    view.show();
+
+    return a.exec();
+}

examples/widgets/itemviews/storageview/storagemodel.cpp

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+// Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2016 Ivan Komissarov
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "storagemodel.h"
+
+#include <QDir>
+#include <QLocale>
+
+void StorageModel::refresh()
+{
+    beginResetModel();
+    m_volumes = QStorageInfo::mountedVolumes();
+    std::sort(m_volumes.begin(), m_volumes.end(),
+              [](const QStorageInfo &st1, const QStorageInfo &st2) {
+                  static const QString rootSortString = QStringLiteral(" ");
+                  return (st1.isRoot() ? rootSortString : st1.rootPath())
+                       < (st2.isRoot() ? rootSortString : st2.rootPath());
+              });
+    endResetModel();
+}
+
+int StorageModel::columnCount(const QModelIndex &/*parent*/) const
+{
+    return ColumnCount;
+}
+
+int StorageModel::rowCount(const QModelIndex &parent) const
+{
+    if (parent.isValid())
+        return 0;
+    return m_volumes.count();
+}
+
+Qt::ItemFlags StorageModel::flags(const QModelIndex &index) const
+{
+    Qt::ItemFlags result = QAbstractTableModel::flags(index);
+    switch (index.column()) {
+    case ColumnAvailable:
+    case ColumnIsReady:
+    case ColumnIsReadOnly:
+    case ColumnIsValid:
+        result |= Qt::ItemIsUserCheckable;
+        break;
+    default:
+        break;
+    }
+    return result;
+}
+
+QVariant StorageModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid())
+        return QVariant();
+
+    if (role == Qt::DisplayRole) {
+        const QStorageInfo &volume = m_volumes.at(index.row());
+        switch (index.column()) {
+        case ColumnRootPath:
+            return QDir::toNativeSeparators(volume.rootPath());
+        case ColumnName:
+            return volume.name();
+        case ColumnDevice:
+            return volume.device();
+        case ColumnFileSystemName:
+            return volume.fileSystemType();
+        case ColumnTotal:
+            return QLocale().formattedDataSize(volume.bytesTotal());
+        case ColumnFree:
+            return QLocale().formattedDataSize(volume.bytesFree());
+        case ColumnAvailable:
+            return QLocale().formattedDataSize(volume.bytesAvailable());
+        default:
+            break;
+        }
+    } else if (role == Qt::CheckStateRole) {
+        const QStorageInfo &volume = m_volumes.at(index.row());
+        switch (index.column()) {
+        case ColumnIsReady:
+            return volume.isReady();
+        case ColumnIsReadOnly:
+            return volume.isReadOnly();
+        case ColumnIsValid:
+            return volume.isValid();
+        default:
+            break;
+        }
+    } else if (role == Qt::TextAlignmentRole) {
+        switch (index.column()) {
+        case ColumnTotal:
+        case ColumnFree:
+        case ColumnAvailable:
+            return Qt::AlignTrailing;
+        default:
+            break;
+        }
+        return Qt::AlignLeading;
+    } else if (role == Qt::ToolTipRole) {
+        QLocale locale;
+        const QStorageInfo &volume = m_volumes.at(index.row());
+        return tr("Root path : %1\n"
+                  "Name: %2\n"
+                  "Display Name: %3\n"
+                  "Device: %4\n"
+                  "FileSystem: %5\n"
+                  "Total size: %6\n"
+                  "Free size: %7\n"
+                  "Available size: %8\n"
+                  "Is Ready: %9\n"
+                  "Is Read-only: %10\n"
+                  "Is Valid: %11\n"
+                  "Is Root: %12"
+                  ).
+                arg(QDir::toNativeSeparators(volume.rootPath())).
+                arg(volume.name()).
+                arg(volume.displayName()).
+                arg(QString::fromUtf8(volume.device())).
+                arg(QString::fromUtf8(volume.fileSystemType())).
+                arg(locale.formattedDataSize(volume.bytesTotal())).
+                arg(locale.formattedDataSize(volume.bytesFree())).
+                arg(locale.formattedDataSize(volume.bytesAvailable())).
+                arg(volume.isReady() ? tr("true") : tr("false")).
+                arg(volume.isReadOnly() ? tr("true") : tr("false")).
+                arg(volume.isValid() ? tr("true") : tr("false")).
+                arg(volume.isRoot() ? tr("true") : tr("false"));
+    }
+    return QVariant();
+}
+
+QVariant StorageModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if (orientation != Qt::Horizontal)
+        return QVariant();
+
+    if (role != Qt::DisplayRole)
+        return QVariant();
+
+    switch (section) {
+    case ColumnRootPath:
+        return tr("Root Path");
+    case ColumnName:
+        return tr("Volume Name");
+    case ColumnDevice:
+        return tr("Device");
+    case ColumnFileSystemName:
+        return tr("File System");
+    case ColumnTotal:
+        return tr("Total");
+    case ColumnFree:
+        return tr("Free");
+    case ColumnAvailable:
+        return tr("Available");
+    case ColumnIsReady:
+        return tr("Ready");
+    case ColumnIsReadOnly:
+        return tr("Read-only");
+    case ColumnIsValid:
+        return tr("Valid");
+    default:
+        break;
+    }
+
+    return QVariant();
+}

examples/widgets/itemviews/storageview/storagemodel.h

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+// Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2016 Ivan Komissarov
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef STORAGEMODEL_H
+#define STORAGEMODEL_H
+
+#include <QAbstractTableModel>
+#include <QStorageInfo>
+
+class StorageModel : public QAbstractTableModel
+{
+    Q_OBJECT
+    Q_DISABLE_COPY(StorageModel)
+public:
+    enum Column {
+        ColumnRootPath = 0,
+        ColumnName,
+        ColumnDevice,
+        ColumnFileSystemName,
+        ColumnTotal,
+        ColumnFree,
+        ColumnAvailable,
+        ColumnIsReady,
+        ColumnIsReadOnly,
+        ColumnIsValid,
+        ColumnCount
+    };
+
+    using QAbstractTableModel::QAbstractTableModel;
+
+    int columnCount(const QModelIndex &parent) const override;
+    int rowCount(const QModelIndex &parent) const override;
+
+    QVariant data(const QModelIndex &index, int role) const override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
+
+public slots:
+    void refresh();
+
+private:
+    QList<QStorageInfo> m_volumes;
+};
+
+#endif // STORAGEMODEL_H

examples/widgets/itemviews/storageview/storageview.pro

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+QT += core gui widgets
+requires(qtConfig(treeview))
+TARGET = storageview
+TEMPLATE = app
+SOURCES += storagemodel.cpp \
+    main.cpp
+HEADERS += \
+    storagemodel.h
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/widgets/itemviews/storageview
+INSTALLS += target