Add the StorageView example
The StorageView example demonstrates the QStorageInfo API. Change-Id: Ifaabadbe64fdf26d13a4ce4690e6b54514667c9f Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com> Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
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@ -17,5 +17,6 @@ SUBDIRS = addressbook \
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simplewidgetmapper \
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spinboxdelegate \
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spreadsheet \
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stardelegate
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stardelegate \
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storageview
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contains(DEFINES, QT_NO_DRAGANDDROP): SUBDIRS -= puzzle
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62
examples/widgets/itemviews/storageview/main.cpp
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62
examples/widgets/itemviews/storageview/main.cpp
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/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Copyright (C) 2014 Ivan Komissarov
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets/QApplication>
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#include <QtWidgets/QHeaderView>
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#include <QtWidgets/QTreeView>
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#include "storagemodel.h"
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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QTreeView view;
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view.setModel(new StorageModel(&view));
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view.resize(640, 480);
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view.setSelectionBehavior(QAbstractItemView::SelectRows);
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int columnCount = view.model()->columnCount();
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for (int c = 0; c < columnCount; ++c)
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view.resizeColumnToContents(c);
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view.show();
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return a.exec();
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}
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177
examples/widgets/itemviews/storageview/storagemodel.cpp
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177
examples/widgets/itemviews/storageview/storagemodel.cpp
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@ -0,0 +1,177 @@
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/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Copyright (C) 2014 Ivan Komissarov
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "storagemodel.h"
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#include <QDir>
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#include <qmath.h>
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static QString sizeToString(qint64 size)
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{
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static const char *const strings[] = { "b", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
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if (size <= 0)
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return StorageModel::tr("0 b");
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double power = log((double)size)/log(1024.0);
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int intPower = (int)power;
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intPower = intPower >= 8 ? 8 - 1 : intPower;
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double normSize = size / pow(1024.0, intPower);
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//: this should expand to "1.23 GB"
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return StorageModel::tr("%1 %2").arg(normSize, 0, 'f', intPower > 0 ? 2 : 0).arg(strings[intPower]);
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}
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StorageModel::StorageModel(QObject *parent) :
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QAbstractTableModel(parent),
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m_volumes(QStorageInfo::mountedVolumes())
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{
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}
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int StorageModel::columnCount(const QModelIndex &/*parent*/) const
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{
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return ColumnCount;
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}
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int StorageModel::rowCount(const QModelIndex &parent) const
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{
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if (parent.isValid())
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return 0;
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return m_volumes.count();
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}
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QVariant StorageModel::data(const QModelIndex &index, int role) const
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{
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if (!index.isValid())
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return QVariant();
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if (role == Qt::DisplayRole) {
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const QStorageInfo &volume = m_volumes.at(index.row());
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switch (index.column()) {
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case ColumnRootPath:
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return QDir::toNativeSeparators(volume.rootPath());
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case ColumnName:
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return volume.name();
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case ColumnDevice:
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return volume.device();
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case ColumnFileSystemName:
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return volume.fileSystemType();
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case ColumnTotal:
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return sizeToString(volume.bytesTotal());
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case ColumnFree:
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return sizeToString(volume.bytesFree());
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case ColumnAvailable:
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return sizeToString(volume.bytesAvailable());
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case ColumnIsReady:
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return volume.isReady();
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case ColumnIsReadOnly:
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return volume.isReadOnly();
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case ColumnIsValid:
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return volume.isValid();
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default:
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break;
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}
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} else if (role == Qt::ToolTipRole) {
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const QStorageInfo &volume = m_volumes.at(index.row());
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return tr("Root path : %1\n"
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"Name: %2\n"
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"Display Name: %3\n"
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"Device: %4\n"
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"FileSystem: %5\n"
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"Total size: %6\n"
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"Free size: %7\n"
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"Available size: %8\n"
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"Is Ready: %9\n"
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"Is Read-only: %10\n"
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"Is Valid: %11\n"
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"Is Root: %12"
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).
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arg(QDir::toNativeSeparators(volume.rootPath())).
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arg(volume.name()).
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arg(volume.displayName()).
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arg(QString::fromUtf8(volume.device())).
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arg(QString::fromUtf8(volume.fileSystemType())).
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arg(sizeToString(volume.bytesTotal())).
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arg(sizeToString(volume.bytesFree())).
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arg(sizeToString(volume.bytesAvailable())).
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arg(volume.isReady() ? tr("true") : tr("false")).
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arg(volume.isReadOnly() ? tr("true") : tr("false")).
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arg(volume.isValid() ? tr("true") : tr("false")).
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arg(volume.isRoot() ? tr("true") : tr("false"));
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}
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return QVariant();
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}
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QVariant StorageModel::headerData(int section, Qt::Orientation orientation, int role) const
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{
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if (orientation != Qt::Horizontal)
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return QVariant();
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if (role != Qt::DisplayRole)
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return QVariant();
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switch (section) {
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case ColumnRootPath:
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return tr("Root path");
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case ColumnName:
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return tr("Volume Name");
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case ColumnDevice:
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return tr("Device");
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case ColumnFileSystemName:
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return tr("File system");
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case ColumnTotal:
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return tr("Total");
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case ColumnFree:
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return tr("Free");
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case ColumnAvailable:
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return tr("Available");
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case ColumnIsReady:
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return tr("Ready");
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case ColumnIsReadOnly:
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return tr("Read-only");
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case ColumnIsValid:
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return tr("Valid");
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default:
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break;
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}
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return QVariant();
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}
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79
examples/widgets/itemviews/storageview/storagemodel.h
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79
examples/widgets/itemviews/storageview/storagemodel.h
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@ -0,0 +1,79 @@
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/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Copyright (C) 2014 Ivan Komissarov
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef STORAGEMODEL_H
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#define STORAGEMODEL_H
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#include <QAbstractTableModel>
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#include <QStorageInfo>
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class StorageModel : public QAbstractTableModel
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{
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Q_OBJECT
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Q_DISABLE_COPY(StorageModel)
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public:
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enum Column {
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ColumnRootPath = 0,
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ColumnName,
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ColumnDevice,
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ColumnFileSystemName,
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ColumnTotal,
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ColumnFree,
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ColumnAvailable,
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ColumnIsReady,
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ColumnIsReadOnly,
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ColumnIsValid,
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ColumnCount
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};
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explicit StorageModel(QObject *parent = 0);
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int columnCount(const QModelIndex &parent) const;
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int rowCount(const QModelIndex &parent) const;
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QVariant data(const QModelIndex &index, int role) const;
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QVariant headerData(int section, Qt::Orientation orientation, int role) const;
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private:
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QList<QStorageInfo> m_volumes;
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};
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#endif // STORAGEMODEL_H
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7
examples/widgets/itemviews/storageview/storageview.pro
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7
examples/widgets/itemviews/storageview/storageview.pro
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@ -0,0 +1,7 @@
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QT += core gui widgets
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TARGET = storageview
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TEMPLATE = app
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SOURCES += storagemodel.cpp \
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main.cpp
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HEADERS += \
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storagemodel.h
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