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Add mime type browser example.

Browse Source 
Add an example showing the types in QMimeDatabase in
a QTreeView with detailed information on click.
The example has menu options to detect a file type
and search by name.

Change-Id: If6f1a6661edd100a54460a49562a8a8667245ddb
Reviewed-by: David Faure <david.faure@kdab.com>
This commit is contained in:
Friedemann Kleint 2016-03-18 14:40:19 +01:00 committed by Simon Hausmann
parent 14b79ae2b3
commit 9a96eb00c4
8 changed files with 623 additions and 0 deletions
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1
examples/corelib/corelib.pro
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@ -4,5 +4,6 @@ CONFIG += no_docs_target
SUBDIRS = \ SUBDIRS = \
ipc \ ipc \
json \ json \
mimetypes \
threads \ threads \
tools tools

69
examples/corelib/mimetypes/mimetypebrowser/main.cpp Normal file
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/****************************************************************************
**
** Copyright (C) 2016 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
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "mainwindow.h"
#include <QApplication>
#include <QDesktopWidget>
#include <QCommandLineParser>
#include <QCommandLineOption>
#include <QDebug>
#include <QMimeDatabase>
#include <QMimeType>
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QCoreApplication::setApplicationVersion(QT_VERSION_STR);
QCommandLineParser parser;
parser.addHelpOption();
parser.addVersionOption();
parser.process(app);
MainWindow mainWindow;
const QRect availableGeometry = QApplication::desktop()->availableGeometry(&mainWindow);
mainWindow.resize(availableGeometry.width() / 3, availableGeometry.height() / 2);
mainWindow.show();
return app.exec();
}

185
examples/corelib/mimetypes/mimetypebrowser/mainwindow.cpp Normal file
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@ -0,0 +1,185 @@
/****************************************************************************
**
** Copyright (C) 2016 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
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "mainwindow.h"
#include "mimetypemodel.h"
#include <QAction>
#include <QApplication>
#include <QFileDialog>
#include <QInputDialog>
#include <QMenu>
#include <QMenuBar>
#include <QMessageBox>
#include <QPlainTextEdit>
#include <QSplitter>
#include <QStatusBar>
#include <QTextEdit>
#include <QTreeView>
#include <QFileInfo>
#include <QItemSelectionModel>
#include <QMimeDatabase>
#include <QMimeType>
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, m_model(new MimetypeModel(this))
, m_treeView(new QTreeView)
, m_detailsText(new QTextEdit)
, m_findIndex(0)
{
setWindowTitle(tr("Qt Mime Database Browser"));
QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
QAction *detectFileAction =
fileMenu->addAction(tr("&Detect File Type..."), this, &MainWindow::detectFile);
detectFileAction->setShortcuts(QKeySequence::Open);
QAction *exitAction = fileMenu->addAction(tr("E&xit"), qApp, &QApplication::closeAllWindows);
exitAction->setShortcuts(QKeySequence::Quit);
QMenu *findMenu = menuBar()->addMenu(tr("&Edit"));
QAction *findAction =
findMenu->addAction(tr("&Find..."), this, &MainWindow::find);
findAction->setShortcuts(QKeySequence::Find);
m_findNextAction = findMenu->addAction(tr("Find &Next"), this, &MainWindow::findNext);
m_findNextAction->setShortcuts(QKeySequence::FindNext);
m_findPreviousAction = findMenu->addAction(tr("Find &Previous"), this, &MainWindow::findPrevious);
m_findPreviousAction->setShortcuts(QKeySequence::FindPrevious);
menuBar()->addMenu(tr("&About"))->addAction(tr("&About Qt"), qApp, &QApplication::aboutQt);
QSplitter *centralSplitter = new QSplitter;
setCentralWidget(centralSplitter);
m_treeView = new QTreeView;
m_treeView->setUniformRowHeights(true);
m_treeView->setModel(m_model);
const auto items = m_model->findItems("application/octet-stream", Qt::MatchContains | Qt::MatchFixedString | Qt::MatchRecursive);
if (!items.isEmpty())
m_treeView->expand(m_model->indexFromItem(items.constFirst()));
connect(m_treeView->selectionModel(), &QItemSelectionModel::currentChanged,
this, &MainWindow::currentChanged);
centralSplitter->addWidget(m_treeView);
m_detailsText->setReadOnly(true);
centralSplitter->addWidget(m_detailsText);
updateFindActions();
}
void MainWindow::currentChanged(const QModelIndex &index)
{
if (index.isValid())
m_detailsText->setText(MimetypeModel::formatMimeTypeInfo(m_model->mimeType(index)));
else
m_detailsText->clear();
}
void MainWindow::selectAndGoTo(const QModelIndex &index)
{
m_treeView->scrollTo(index, QAbstractItemView::PositionAtCenter);
m_treeView->setCurrentIndex(index);
}
void MainWindow::detectFile()
{
const QString fileName = QFileDialog::getOpenFileName(this, tr("Choose File"));
if (fileName.isEmpty())
return;
QMimeDatabase mimeDatabase;
const QFileInfo fi(fileName);
const QMimeType mimeType = mimeDatabase.mimeTypeForFile(fi);
const QModelIndex index = mimeType.isValid()
? m_model->indexForMimeType(mimeType.name()) : QModelIndex();
if (index.isValid()) {
statusBar()->showMessage(tr("\"%1\" is of type \"%2\"").arg(fi.fileName(), mimeType.name()));
selectAndGoTo(index);
} else {
QMessageBox::information(this, tr("Unknown File Type"),
tr("The type of %1 could not be determined.")
.arg(QDir::toNativeSeparators(fileName)));
}
}
void MainWindow::updateFindActions()
{
const bool findNextPreviousEnabled = m_findMatches.size() > 1;
m_findNextAction->setEnabled(findNextPreviousEnabled);
m_findPreviousAction->setEnabled(findNextPreviousEnabled);
}
void MainWindow::findPrevious()
{
if (--m_findIndex < 0)
m_findIndex = m_findMatches.size() - 1;
if (m_findIndex >= 0)
selectAndGoTo(m_findMatches.at(m_findIndex));
}
void MainWindow::findNext()
{
if (++m_findIndex >= m_findMatches.size())
m_findIndex = 0;
if (m_findIndex < m_findMatches.size())
selectAndGoTo(m_findMatches.at(m_findIndex));
}
void MainWindow::find()
{
QInputDialog inputDialog(this);
inputDialog.setWindowTitle(tr("Find"));
inputDialog.setLabelText(tr("Text:"));
if (inputDialog.exec() != QDialog::Accepted)
return;
const QString value = inputDialog.textValue().trimmed();
if (value.isEmpty())
return;
m_findMatches.clear();
m_findIndex = 0;
foreach (const QStandardItem *item, m_model->findItems(value, Qt::MatchContains | Qt::MatchFixedString | Qt::MatchRecursive))
m_findMatches.append(m_model->indexFromItem(item));
statusBar()->showMessage(tr("%n mime types match \"%1\".", 0, m_findMatches.size()).arg(value));
updateFindActions();
if (!m_findMatches.isEmpty())
selectAndGoTo(m_findMatches.constFirst());
}

79
examples/corelib/mimetypes/mimetypebrowser/mainwindow.h Normal file
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@ -0,0 +1,79 @@
/****************************************************************************
**
** Copyright (C) 2016 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
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <QModelIndexList>
QT_FORWARD_DECLARE_CLASS(QAction)
QT_FORWARD_DECLARE_CLASS(QTextEdit)
QT_FORWARD_DECLARE_CLASS(QTreeView)
class MimetypeModel;
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = nullptr);
private slots:
void currentChanged(const QModelIndex &);
void detectFile();
void find();
void findNext();
void findPrevious();
private:
void selectAndGoTo(const QModelIndex &index);
void updateFindActions();
MimetypeModel *m_model;
QTreeView *m_treeView;
QTextEdit *m_detailsText;
QAction *m_findNextAction;
QAction *m_findPreviousAction;
QModelIndexList m_findMatches;
int m_findIndex;
};
#endif // MAINWINDOW_H

13
examples/corelib/mimetypes/mimetypebrowser/mimetypebrowser.pro Normal file
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@ -0,0 +1,13 @@
TEMPLATE = app
QT += widgets
CONFIG -= app_bundle
CONFIG += c++11
SOURCES += \
main.cpp \
mimetypemodel.cpp \
mainwindow.cpp
HEADERS += \
mimetypemodel.h \
mainwindow.h

199
examples/corelib/mimetypes/mimetypebrowser/mimetypemodel.cpp Normal file
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@ -0,0 +1,199 @@
/****************************************************************************
**
** Copyright (C) 2016 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
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "mimetypemodel.h"
#include <QIcon>
#include <QDebug>
#include <QMimeDatabase>
#include <QTextStream>
#include <QVariant>
#include <algorithm>
Q_DECLARE_METATYPE(QMimeType)
typedef QList<QStandardItem *> StandardItemList;
enum { mimeTypeRole = Qt::UserRole + 1, iconQueriedRole = Qt::UserRole + 2 };
bool operator<(const QMimeType &t1, const QMimeType &t2)
{
return t1.name() < t2.name();
}
static StandardItemList createRow(const QMimeType &t)
{
const QVariant v = QVariant::fromValue(t);
QStandardItem *nameItem = new QStandardItem(t.name());
const Qt::ItemFlags flags = Qt::ItemIsSelectable | Qt::ItemIsEnabled;
nameItem->setData(v, mimeTypeRole);
nameItem->setData(QVariant(false), iconQueriedRole);
nameItem->setFlags(flags);
nameItem->setToolTip(t.comment());
return StandardItemList{nameItem};
}
MimetypeModel::MimetypeModel(QObject *parent)
: QStandardItemModel(0, ColumnCount, parent)
{
setHorizontalHeaderLabels(QStringList{tr("Name")});
populate();
}
QVariant MimetypeModel::data(const QModelIndex &index, int role) const
{
if (role != Qt::DecorationRole || !index.isValid() || index.data(iconQueriedRole).toBool())
return QStandardItemModel::data(index, role);
QStandardItem *item = itemFromIndex(index);
const QString iconName = item->data(mimeTypeRole).value<QMimeType>().iconName();
if (!iconName.isEmpty())
item->setIcon(QIcon::fromTheme(iconName));
item->setData(QVariant(true), iconQueriedRole);
return item->icon();
}
QMimeType MimetypeModel::mimeType(const QModelIndex &index) const
{
return index.data(mimeTypeRole).value<QMimeType>();
}
void MimetypeModel::populate()
{
typedef QList<QMimeType>::Iterator Iterator;
QMimeDatabase mimeDatabase;
QList<QMimeType> allTypes = mimeDatabase.allMimeTypes();
// Move top level types to rear end of list, sort this partition,
// create top level items and truncate the list.
Iterator end = allTypes.end();
const Iterator topLevelStart =
std::stable_partition(allTypes.begin(), end,
[](const QMimeType &t) { return !t.parentMimeTypes().isEmpty(); });
std::stable_sort(topLevelStart, end);
for (Iterator it = topLevelStart; it != end; ++it) {
const StandardItemList row = createRow(*it);
appendRow(row);
m_nameIndexHash.insert(it->name(), indexFromItem(row.constFirst()));
}
allTypes.erase(topLevelStart, end);
while (!allTypes.isEmpty()) {
// Find a type inheriting one that is already in the model.
end = allTypes.end();
auto nameIndexIt = m_nameIndexHash.constEnd();
for (Iterator it = allTypes.begin(); it != end; ++it) {
nameIndexIt = m_nameIndexHash.constFind(it->parentMimeTypes().constFirst());
if (nameIndexIt != m_nameIndexHash.constEnd())
break;
}
if (nameIndexIt == m_nameIndexHash.constEnd()) {
qWarning() << "Orphaned mime types:" << allTypes;
break;
}
// Move types inheriting the parent type to rear end of list, sort this partition,
// append the items to parent and truncate the list.
const QString &parentName = nameIndexIt.key();
const Iterator start =
std::stable_partition(allTypes.begin(), end,
[parentName](const QMimeType &t) { return !t.inherits(parentName); });
std::stable_sort(start, end);
QStandardItem *parentItem = itemFromIndex(nameIndexIt.value());
for (Iterator it = start; it != end; ++it) {
const StandardItemList row = createRow(*it);
parentItem->appendRow(row);
m_nameIndexHash.insert(it->name(), indexFromItem(row.constFirst()));
}
allTypes.erase(start, end);
}
}
QTextStream &operator<<(QTextStream &stream, const QStringList &list)
{
for (int i = 0, size = list.size(); i < size; ++i) {
if (i)
stream << ", ";
stream << list.at(i);
}
return stream;
}
QString MimetypeModel::formatMimeTypeInfo(const QMimeType &t)
{
QString result;
QTextStream str(&result);
str << "<html><head/><body><h3><center>" << t.name() << "</center></h3><br><table>";
const QStringList &aliases = t.aliases();
if (!aliases.isEmpty())
str << "<tr><td>Aliases:</td><td>" << " (" << aliases << ')';
str << "</td></tr>"
<< "<tr><td>Comment:</td><td>" << t.comment() << "</td></tr>"
<< "<tr><td>Icon name:</td><td>" << t.iconName() << "</td></tr>";
const QString &filter = t.filterString();
if (!filter.isEmpty())
str << "<tr><td>Filter:</td><td>" << t.filterString() << "</td></tr>";
const QStringList &patterns = t.globPatterns();
if (!patterns.isEmpty())
str << "<tr><td>Glob patterns:</td><td>" << patterns << "</td></tr>";
const QStringList &parentMimeTypes = t.parentMimeTypes();
if (!parentMimeTypes.isEmpty())
str << "<tr><td>Parent types:</td><td>" << t.parentMimeTypes() << "</td></tr>";
QStringList suffixes = t.suffixes();
if (!suffixes.isEmpty()) {
str << "<tr><td>Suffixes:</td><td>";
const QString &preferredSuffix = t.preferredSuffix();
if (!preferredSuffix.isEmpty()) {
suffixes.removeOne(preferredSuffix);
str << "<b>" << preferredSuffix << "</b> ";
}
str << suffixes << "</td></tr>";
}
str << "</table></body></html>";
return result;
}

74
examples/corelib/mimetypes/mimetypebrowser/mimetypemodel.h Normal file
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@ -0,0 +1,74 @@
/****************************************************************************
**
** Copyright (C) 2016 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
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef MIMETYPEMODEL_H
#define MIMETYPEMODEL_H
#include <QStandardItemModel>
#include <QHash>
QT_FORWARD_DECLARE_CLASS(QMimeType)
class MimetypeModel : public QStandardItemModel
{
Q_OBJECT
public:
enum Columns { NameColumn, ColumnCount };
explicit MimetypeModel(QObject *parent = nullptr);
QVariant data(const QModelIndex &index, int role) const override;
QMimeType mimeType(const QModelIndex &) const;
QModelIndex indexForMimeType(const QString &name) const
{ return m_nameIndexHash.value(name); }
static QString formatMimeTypeInfo(const QMimeType &);
private:
typedef QHash<QString, QModelIndex> NameIndexHash;
void populate();
NameIndexHash m_nameIndexHash;
};
#endif // MIMETYPEMODEL_H

3
examples/corelib/mimetypes/mimetypes.pro Normal file
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TEMPLATE = subdirs
SUBDIRS = mimetypebrowser