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313 lines
12 KiB
C++
313 lines
12 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Copyright (C) 2016-2019 Ivailo Monev
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**
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** This file is part of the QtGui module of the Katie Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QFILESYSTEMMODEL_P_H
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#define QFILESYSTEMMODEL_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Katie API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include "qfilesystemmodel.h"
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#ifndef QT_NO_FILESYSTEMMODEL
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#include "qabstractitemmodel_p.h"
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#include "qabstractitemmodel.h"
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#include "qfileinfogatherer_p.h"
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#include "qpair.h"
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#include "qdir.h"
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#include "qicon.h"
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#include "qfileinfo.h"
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#include "qtimer.h"
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#include "qhash.h"
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#include "qbasictimer.h"
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QT_BEGIN_NAMESPACE
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class ExtendedInformation;
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class QFileSystemModelPrivate;
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class QFileIconProvider;
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class Q_AUTOTEST_EXPORT QFileSystemModelPrivate : public QAbstractItemModelPrivate
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{
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Q_DECLARE_PUBLIC(QFileSystemModel)
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public:
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class QFileSystemNode
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{
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public:
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QFileSystemNode(const QString &filename = QString(), QFileSystemNode *p = 0)
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: fileName(filename), populatedChildren(false), isVisible(false), dirtyChildrenIndex(-1), parent(p), info(0) {}
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~QFileSystemNode() {
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QHash<QString, QFileSystemNode*>::const_iterator i = children.constBegin();
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while (i != children.constEnd()) {
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delete i.value();
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++i;
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}
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delete info;
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info = 0;
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parent = 0;
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}
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QString fileName;
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inline qint64 size() const { if (info && !info->isDir()) return info->size(); return 0; }
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inline QString type() const { if (info) return info->displayType; return QLatin1String(""); }
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inline QDateTime lastModified() const { if (info) return info->lastModified(); return QDateTime(); }
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inline QFile::Permissions permissions() const { if (info) return info->permissions(); return 0; }
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inline bool isReadable() const { return ((permissions() & QFile::ReadUser) != 0); }
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inline bool isWritable() const { return ((permissions() & QFile::WriteUser) != 0); }
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inline bool isExecutable() const { return ((permissions() & QFile::ExeUser) != 0); }
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inline bool isDir() const {
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if (info)
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return info->isDir();
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if (children.count() > 0)
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return true;
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return false;
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}
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inline bool isFile() const { if (info) return info->isFile(); return true; }
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inline bool isSystem() const { if (info) return info->isSystem(); return true; }
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inline bool isHidden() const { if (info) return info->isHidden(); return false; }
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inline bool isSymLink() const { return info && info->isSymLink(); }
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inline bool caseSensitive() const { if (info) return info->isCaseSensitive(); return false; }
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inline QIcon icon() const { if (info) return info->icon; return QIcon(); }
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inline bool operator <(const QFileSystemNode &node) const {
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if (caseSensitive() || node.caseSensitive())
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return fileName < node.fileName;
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return QString::compare(fileName, node.fileName, Qt::CaseInsensitive) < 0;
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}
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inline bool operator >(const QString &name) const {
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if (caseSensitive())
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return fileName > name;
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return QString::compare(fileName, name, Qt::CaseInsensitive) > 0;
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}
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inline bool operator <(const QString &name) const {
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if (caseSensitive())
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return fileName < name;
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return QString::compare(fileName, name, Qt::CaseInsensitive) < 0;
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}
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inline bool operator !=(const QExtendedInformation &fileInfo) const {
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return !operator==(fileInfo);
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}
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bool operator ==(const QString &name) const {
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if (caseSensitive())
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return fileName == name;
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return QString::compare(fileName, name, Qt::CaseInsensitive) == 0;
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}
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bool operator ==(const QExtendedInformation &fileInfo) const {
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return info && (*info == fileInfo);
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}
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inline bool hasInformation() const { return info != 0; }
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void populate(const QExtendedInformation &fileInfo) {
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if (!info)
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info = new QExtendedInformation(fileInfo.fileInfo());
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(*info) = fileInfo;
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}
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// children shouldn't normally be accessed directly, use node()
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inline int visibleLocation(const QString &childName) {
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return visibleChildren.indexOf(childName);
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}
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void updateIcon(QFileIconProvider *iconProvider, const QString &path) {
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if (info)
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info->icon = iconProvider->icon(QFileInfo(path));
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QHash<QString, QFileSystemNode *>::const_iterator iterator;
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for(iterator = children.constBegin() ; iterator != children.constEnd() ; ++iterator) {
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//On windows the root (My computer) has no path so we don't want to add a / for nothing (e.g. /C:/)
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if (!path.isEmpty()) {
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if (path.endsWith(QLatin1Char('/')))
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iterator.value()->updateIcon(iconProvider, path + iterator.value()->fileName);
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else
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iterator.value()->updateIcon(iconProvider, path + QLatin1Char('/') + iterator.value()->fileName);
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} else
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iterator.value()->updateIcon(iconProvider, iterator.value()->fileName);
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}
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}
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void retranslateStrings(QFileIconProvider *iconProvider, const QString &path) {
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if (info)
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info->displayType = iconProvider->type(QFileInfo(path));
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QHash<QString, QFileSystemNode *>::const_iterator iterator;
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for(iterator = children.constBegin() ; iterator != children.constEnd() ; ++iterator) {
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//On windows the root (My computer) has no path so we don't want to add a / for nothing (e.g. /C:/)
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if (!path.isEmpty()) {
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if (path.endsWith(QLatin1Char('/')))
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iterator.value()->retranslateStrings(iconProvider, path + iterator.value()->fileName);
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else
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iterator.value()->retranslateStrings(iconProvider, path + QLatin1Char('/') + iterator.value()->fileName);
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} else
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iterator.value()->retranslateStrings(iconProvider, iterator.value()->fileName);
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}
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}
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bool populatedChildren;
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bool isVisible;
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QHash<QString,QFileSystemNode *> children;
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QList<QString> visibleChildren;
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int dirtyChildrenIndex;
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QFileSystemNode *parent;
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QExtendedInformation *info;
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};
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QFileSystemModelPrivate() :
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forceSort(true),
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sortColumn(0),
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sortOrder(Qt::AscendingOrder),
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readOnly(true),
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setRootPath(false),
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filters(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::AllDirs),
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nameFilterDisables(true), // false on windows, true on mac and unix
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disableRecursiveSort(false)
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{
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delayedSortTimer.setSingleShot(true);
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}
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void init();
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/*
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\internal
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Return true if index which is owned by node is hidden by the filter.
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*/
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inline bool isHiddenByFilter(QFileSystemNode *indexNode, const QModelIndex &index) const
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{
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return (indexNode != &root && !index.isValid());
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}
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QFileSystemNode *node(const QModelIndex &index) const;
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QFileSystemNode *node(const QString &path, bool fetch = true) const;
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inline QModelIndex index(const QString &path) { return index(node(path)); }
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QModelIndex index(const QFileSystemNode *node) const;
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bool filtersAcceptsNode(const QFileSystemNode *node) const;
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bool passNameFilters(const QFileSystemNode *node) const;
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void removeNode(QFileSystemNode *parentNode, const QString &name);
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QFileSystemNode* addNode(QFileSystemNode *parentNode, const QString &fileName, const QFileInfo &info);
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void addVisibleFiles(QFileSystemNode *parentNode, const QStringList &newFiles);
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void removeVisibleFile(QFileSystemNode *parentNode, int visibleLocation);
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void sortChildren(int column, const QModelIndex &parent);
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inline int translateVisibleLocation(QFileSystemNode *parent, int row) const {
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if (sortOrder != Qt::AscendingOrder) {
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if (parent->dirtyChildrenIndex == -1)
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return parent->visibleChildren.count() - row - 1;
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if (row < parent->dirtyChildrenIndex)
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return parent->dirtyChildrenIndex - row - 1;
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}
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return row;
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}
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inline static QString myComputer() {
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return QFileSystemModel::tr("Computer");
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}
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inline void delayedSort() {
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if (!delayedSortTimer.isActive())
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delayedSortTimer.start(0);
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}
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static bool caseInsensitiveLessThan(const QString &s1, const QString &s2)
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{
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return QString::compare(s1, s2, Qt::CaseInsensitive) < 0;
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}
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static bool nodeCaseInsensitiveLessThan(const QFileSystemModelPrivate::QFileSystemNode &s1, const QFileSystemModelPrivate::QFileSystemNode &s2)
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{
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return QString::compare(s1.fileName, s2.fileName, Qt::CaseInsensitive) < 0;
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}
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QIcon icon(const QModelIndex &index) const;
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QString name(const QModelIndex &index) const;
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QString filePath(const QModelIndex &index) const;
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QString size(const QModelIndex &index) const;
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static QString size(qint64 bytes);
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QString type(const QModelIndex &index) const;
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QString time(const QModelIndex &index) const;
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void _q_directoryChanged(const QString &directory, const QStringList &list);
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void _q_performDelayedSort();
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void _q_fileSystemChanged(const QString &path, const QList<QPair<QString, QFileInfo> > &);
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static int naturalCompare(const QString &s1, const QString &s2, Qt::CaseSensitivity cs);
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QDir rootDir;
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#ifndef QT_NO_FILESYSTEMWATCHER
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QFileInfoGatherer fileInfoGatherer;
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#endif
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QTimer delayedSortTimer;
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bool forceSort;
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int sortColumn;
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Qt::SortOrder sortOrder;
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bool readOnly;
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bool setRootPath;
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QDir::Filters filters;
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QHash<const QFileSystemNode*, bool> bypassFilters;
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bool nameFilterDisables;
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//This flag is an optimization for the QFileDialog
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//It enable a sort which is not recursive, it means
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//we sort only what we see.
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bool disableRecursiveSort;
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#ifndef QT_NO_REGEXP
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QList<QRegExp> nameFilters;
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#endif
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QFileSystemNode root;
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QBasicTimer fetchingTimer;
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struct Fetching {
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QString dir;
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QString file;
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const QFileSystemNode *node;
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};
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QList<Fetching> toFetch;
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};
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#endif // QT_NO_FILESYSTEMMODEL
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QT_END_NAMESPACE
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#endif
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