Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 337 insertions, 0 deletions

diff --git a/src/gui/dialogs/qfilesystemmodel_p.h b/src/gui/dialogs/qfilesystemmodel_p.h
new file mode 100644
index 0000000000..e83bbd11d3
--- /dev/null
+++ b/src/gui/dialogs/qfilesystemmodel_p.h
@@ -0,0 +1,337 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QFILESYSTEMMODEL_P_H
+#define QFILESYSTEMMODEL_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qfilesystemmodel.h"
+
+#ifndef QT_NO_FILESYSTEMMODEL
+
+#include <private/qabstractitemmodel_p.h>
+#include <qabstractitemmodel.h>
+#include "qfileinfogatherer_p.h"
+#include <qpair.h>
+#include <qdir.h>
+#include <qicon.h>
+#include <qdir.h>
+#include <qicon.h>
+#include <qfileinfo.h>
+#include <qtimer.h>
+#include <qhash.h>
+
+QT_BEGIN_NAMESPACE
+
+class ExtendedInformation;
+class QFileSystemModelPrivate;
+class QFileIconProvider;
+
+class Q_AUTOTEST_EXPORT QFileSystemModelPrivate : public QAbstractItemModelPrivate
+{
+    Q_DECLARE_PUBLIC(QFileSystemModel)
+
+public:
+    class QFileSystemNode
+    {
+    public:
+        QFileSystemNode(const QString &filename = QString(), QFileSystemNode *p = 0)
+            : fileName(filename), populatedChildren(false), isVisible(false), dirtyChildrenIndex(-1), parent(p), info(0) {}
+        ~QFileSystemNode() {
+            QHash<QString, QFileSystemNode*>::const_iterator i = children.constBegin();
+            while (i != children.constEnd()) {
+                    delete i.value();
+                    ++i;
+            }
+            delete info;
+            info = 0;
+            parent = 0;
+        }
+
+        QString fileName;
+#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE)
+        QString volumeName;
+#endif
+
+        inline qint64 size() const { if (info && !info->isDir()) return info->size(); return 0; }
+        inline QString type() const { if (info) return info->displayType; return QLatin1String(""); }
+        inline QDateTime lastModified() const { if (info) return info->lastModified(); return QDateTime(); }
+        inline QFile::Permissions permissions() const { if (info) return info->permissions(); return 0; }
+        inline bool isReadable() const { return ((permissions() & QFile::ReadUser) != 0); }
+        inline bool isWritable() const { return ((permissions() & QFile::WriteUser) != 0); }
+        inline bool isExecutable() const { return ((permissions() & QFile::ExeUser) != 0); }
+        inline bool isDir() const {
+            if (info)
+                return info->isDir();
+            if (children.count() > 0)
+                return true;
+            return false;
+        }
+        inline bool isFile() const { if (info) return info->isFile(); return true; }
+        inline bool isSystem() const { if (info) return info->isSystem(); return true; }
+        inline bool isHidden() const { if (info) return info->isHidden(); return false; }
+        inline bool isSymLink() const { if (info) return info->isSymLink(); return false; }
+        inline bool caseSensitive() const { if (info) return info->isCaseSensitive(); return false; }
+        inline QIcon icon() const { if (info) return info->icon; return QIcon(); }
+
+        inline bool operator <(const QFileSystemNode &node) const {
+            if (caseSensitive() || node.caseSensitive())
+                return fileName < node.fileName;
+            return QString::compare(fileName, node.fileName, Qt::CaseInsensitive) < 0;
+        }
+        inline bool operator >(const QString &name) const {
+            if (caseSensitive())
+                return fileName > name;
+            return QString::compare(fileName, name, Qt::CaseInsensitive) > 0;
+        }
+        inline bool operator <(const QString &name) const {
+            if (caseSensitive())
+                return fileName < name;
+            return QString::compare(fileName, name, Qt::CaseInsensitive) < 0;
+        }
+        inline bool operator !=(const QExtendedInformation &fileInfo) const {
+            return !operator==(fileInfo);
+        }
+        bool operator ==(const QString &name) const {
+            if (caseSensitive())
+                return fileName == name;
+            return QString::compare(fileName, name, Qt::CaseInsensitive) == 0;
+        }
+        bool operator ==(const QExtendedInformation &fileInfo) const {
+            return info && (*info == fileInfo);
+        }
+
+        inline bool hasInformation() const { return info != 0; }
+
+        void populate(const QExtendedInformation &fileInfo) {
+            if (!info)
+                info = new QExtendedInformation(fileInfo.fileInfo());
+            (*info) = fileInfo;
+        }
+
+        // children shouldn't normally be accessed directly, use node()
+        inline int visibleLocation(QString childName) {
+            return visibleChildren.indexOf(childName);
+        }
+        void updateIcon(QFileIconProvider *iconProvider, const QString &path) {
+            if (info)
+                info->icon = iconProvider->icon(QFileInfo(path));
+            QHash<QString, QFileSystemNode *>::const_iterator iterator;
+            for(iterator = children.constBegin() ; iterator != children.constEnd() ; ++iterator) {
+                //On windows the root (My computer) has no path so we don't want to add a / for nothing (e.g. /C:/)
+                if (!path.isEmpty()) {
+                    if (path.endsWith(QLatin1Char('/')))
+                        iterator.value()->updateIcon(iconProvider, path + iterator.value()->fileName);
+                    else
+                        iterator.value()->updateIcon(iconProvider, path + QLatin1Char('/') + iterator.value()->fileName);
+                } else
+                    iterator.value()->updateIcon(iconProvider, iterator.value()->fileName);
+            }
+        }
+
+        void retranslateStrings(QFileIconProvider *iconProvider, const QString &path) {
+            if (info)
+                info->displayType = iconProvider->type(QFileInfo(path));
+            QHash<QString, QFileSystemNode *>::const_iterator iterator;
+            for(iterator = children.constBegin() ; iterator != children.constEnd() ; ++iterator) {
+                //On windows the root (My computer) has no path so we don't want to add a / for nothing (e.g. /C:/)
+                if (!path.isEmpty()) {
+                    if (path.endsWith(QLatin1Char('/')))
+                        iterator.value()->retranslateStrings(iconProvider, path + iterator.value()->fileName);
+                    else
+                        iterator.value()->retranslateStrings(iconProvider, path + QLatin1Char('/') + iterator.value()->fileName);
+                } else
+                    iterator.value()->retranslateStrings(iconProvider, iterator.value()->fileName);
+            }
+        }
+
+        bool populatedChildren;
+        bool isVisible;
+        QHash<QString,QFileSystemNode *> children;
+        QList<QString> visibleChildren;
+        int dirtyChildrenIndex;
+        QFileSystemNode *parent;
+
+
+        QExtendedInformation *info;
+
+    };
+
+    QFileSystemModelPrivate() :
+            forceSort(true),
+            sortColumn(0),
+            sortOrder(Qt::AscendingOrder),
+            readOnly(true),
+            setRootPath(false),
+            filters(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::AllDirs),
+            nameFilterDisables(true), // false on windows, true on mac and unix
+            disableRecursiveSort(false)
+    {
+        delayedSortTimer.setSingleShot(true);
+    }
+
+    void init();
+    /*
+      \internal
+
+      Return true if index which is owned by node is hidden by the filter.
+    */
+    inline bool isHiddenByFilter(QFileSystemNode *indexNode, const QModelIndex &index) const
+    {
+       return (indexNode != &root && !index.isValid());
+    }
+    QFileSystemNode *node(const QModelIndex &index) const;
+    QFileSystemNode *node(const QString &path, bool fetch = true) const;
+    inline QModelIndex index(const QString &path) { return index(node(path)); }
+    QModelIndex index(const QFileSystemNode *node) const;
+    bool filtersAcceptsNode(const QFileSystemNode *node) const;
+    bool passNameFilters(const QFileSystemNode *node) const;
+    void removeNode(QFileSystemNode *parentNode, const QString &name);
+    QFileSystemNode* addNode(QFileSystemNode *parentNode, const QString &fileName, const QFileInfo &info);
+    void addVisibleFiles(QFileSystemNode *parentNode, const QStringList &newFiles);
+    void removeVisibleFile(QFileSystemNode *parentNode, int visibleLocation);
+    void sortChildren(int column, const QModelIndex &parent);
+
+    inline int translateVisibleLocation(QFileSystemNode *parent, int row) const {
+        if (sortOrder != Qt::AscendingOrder) {
+            if (parent->dirtyChildrenIndex == -1)
+                return parent->visibleChildren.count() - row - 1;
+
+            if (row < parent->dirtyChildrenIndex)
+                return parent->dirtyChildrenIndex - row - 1;
+        }
+
+        return row;
+    }
+
+    inline static QString myComputer() {
+        // ### TODO We should query the system to find out what the string should be
+        // XP == "My Computer",
+        // Vista == "Computer",
+        // OS X == "Computer" (sometime user generated) "Benjamin's PowerBook G4"
+#ifdef Q_OS_WIN
+        return QFileSystemModel::tr("My Computer");
+#else
+        return QFileSystemModel::tr("Computer");
+#endif
+    }
+
+    inline void delayedSort() {
+        if (!delayedSortTimer.isActive())
+            delayedSortTimer.start(0);
+    }
+
+    static bool caseInsensitiveLessThan(const QString &s1, const QString &s2)
+    {
+       return QString::compare(s1, s2, Qt::CaseInsensitive) < 0;
+    }
+
+    static bool nodeCaseInsensitiveLessThan(const QFileSystemModelPrivate::QFileSystemNode &s1, const QFileSystemModelPrivate::QFileSystemNode &s2)
+    {
+       return QString::compare(s1.fileName, s2.fileName, Qt::CaseInsensitive) < 0;
+    }
+
+    QIcon icon(const QModelIndex &index) const;
+    QString name(const QModelIndex &index) const;
+    QString displayName(const QModelIndex &index) const;
+    QString filePath(const QModelIndex &index) const;
+    QString size(const QModelIndex &index) const;
+    static QString size(qint64 bytes);
+    QString type(const QModelIndex &index) const;
+    QString time(const QModelIndex &index) const;
+
+    void _q_directoryChanged(const QString &directory, const QStringList &list);
+    void _q_performDelayedSort();
+    void _q_fileSystemChanged(const QString &path, const QList<QPair<QString, QFileInfo> > &);
+    void _q_resolvedName(const QString &fileName, const QString &resolvedName);
+
+    static int naturalCompare(const QString &s1, const QString &s2, Qt::CaseSensitivity cs);
+
+    QDir rootDir;
+#ifndef QT_NO_FILESYSTEMWATCHER
+    QFileInfoGatherer fileInfoGatherer;
+#endif
+    QTimer delayedSortTimer;
+    bool forceSort;
+    int sortColumn;
+    Qt::SortOrder sortOrder;
+    bool readOnly;
+    bool setRootPath;
+    QDir::Filters filters;
+    QHash<const QFileSystemNode*, bool> bypassFilters;
+    bool nameFilterDisables;
+    //This flag is an optimization for the QFileDialog
+    //It enable a sort which is not recursive, it means
+    //we sort only what we see.
+    bool disableRecursiveSort;
+#ifndef QT_NO_REGEXP
+    QList<QRegExp> nameFilters;
+#endif
+    // ### Qt 5: resolvedSymLinks goes away
+    QHash<QString, QString> resolvedSymLinks;
+
+    QFileSystemNode root;
+
+    QBasicTimer fetchingTimer;
+    struct Fetching {
+        QString dir;
+        QString file;
+        const QFileSystemNode *node;
+    };
+    QList<Fetching> toFetch;
+
+};
+#endif // QT_NO_FILESYSTEMMODEL
+
+QT_END_NAMESPACE
+
+#endif
+