/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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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 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt 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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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "qfileiconprovider.h"+
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+
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#ifndef QT_NO_FILEICONPROVIDER+
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#include <qstyle.h>+
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#include <qapplication.h>+
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#include <qdir.h>+
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#include <qpixmapcache.h>+
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#if defined(Q_WS_WIN)+
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#  define _WIN32_IE 0x0500+
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#  include <qt_windows.h>+
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#  include <commctrl.h>+
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#  include <objbase.h>+
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#elif defined(Q_WS_MAC)+
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#  include <private/qt_cocoa_helpers_mac_p.h>+
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#endif+
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+
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#include <private/qfunctions_p.h>+
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#include <private/qguiplatformplugin_p.h>+
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+
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#if defined(Q_WS_X11) && !defined(Q_NO_STYLE_GTK)+
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#  include <private/qgtkstyle_p.h>+
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#  include <private/qt_x11_p.h>+
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#endif+
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+
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#ifndef SHGFI_ADDOVERLAYS+
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#  define SHGFI_ADDOVERLAYS 0x000000020+
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#  define SHGFI_OVERLAYINDEX 0x000000040+
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#endif+
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+
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QT_BEGIN_NAMESPACE+
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+
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/*!+
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  \class QFileIconProvider+
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+
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  \brief The QFileIconProvider class provides file icons for the QDirModel and the QFileSystemModel classes.+
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*/+
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+
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/*!+
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  \enum QFileIconProvider::IconType+
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  \value Computer+
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  \value Desktop+
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  \value Trashcan+
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  \value Network+
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  \value Drive+
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  \value Folder+
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  \value File+
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*/+
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+
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class QFileIconProviderPrivate+
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{+
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    Q_DECLARE_PUBLIC(QFileIconProvider)+
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+
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public:+
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    QFileIconProviderPrivate();+
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    QIcon getIcon(QStyle::StandardPixmap name) const;+
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#ifdef Q_WS_WIN+
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    QIcon getWinIcon(const QFileInfo &fi) const;+
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#elif defined(Q_WS_MAC)+
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    QIcon getMacIcon(const QFileInfo &fi) const;+
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#endif+
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    QFileIconProvider *q_ptr;+
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    const QString homePath;+
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+
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private:+
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    mutable QIcon file;+
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    mutable QIcon fileLink;+
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    mutable QIcon directory;+
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    mutable QIcon directoryLink;+
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    mutable QIcon harddisk;+
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    mutable QIcon floppy;+
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    mutable QIcon cdrom;+
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    mutable QIcon ram;+
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    mutable QIcon network;+
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    mutable QIcon computer;+
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    mutable QIcon desktop;+
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    mutable QIcon trashcan;+
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    mutable QIcon generic;+
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    mutable QIcon home;+
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};+
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+
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QFileIconProviderPrivate::QFileIconProviderPrivate() :+
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    homePath(QDir::home().absolutePath())+
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{+
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}+
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+
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QIcon QFileIconProviderPrivate::getIcon(QStyle::StandardPixmap name) const+
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{+
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    switch (name) {+
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    case QStyle::SP_FileIcon:+
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        if (file.isNull())+
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            file = QApplication::style()->standardIcon(name);+
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        return file;+
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    case QStyle::SP_FileLinkIcon:+
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        if (fileLink.isNull())+
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            fileLink = QApplication::style()->standardIcon(name);+
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        return fileLink;+
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    case QStyle::SP_DirIcon:+
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        if (directory.isNull())+
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            directory = QApplication::style()->standardIcon(name);+
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        return directory;+
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    case QStyle::SP_DirLinkIcon:+
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        if (directoryLink.isNull())+
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            directoryLink = QApplication::style()->standardIcon(name);+
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        return directoryLink;+
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    case QStyle::SP_DriveHDIcon:+
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        if (harddisk.isNull())+
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            harddisk = QApplication::style()->standardIcon(name);+
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        return harddisk;+
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    case QStyle::SP_DriveFDIcon:+
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        if (floppy.isNull())+
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            floppy = QApplication::style()->standardIcon(name);+
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        return floppy;+
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    case QStyle::SP_DriveCDIcon:+
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        if (cdrom.isNull())+
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            cdrom = QApplication::style()->standardIcon(name);+
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        return cdrom;+
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    case QStyle::SP_DriveNetIcon:+
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        if (network.isNull())+
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            network = QApplication::style()->standardIcon(name);+
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        return network;+
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    case QStyle::SP_ComputerIcon:+
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        if (computer.isNull())+
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            computer = QApplication::style()->standardIcon(name);+
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        return computer;+
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    case QStyle::SP_DesktopIcon:+
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        if (desktop.isNull())+
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            desktop = QApplication::style()->standardIcon(name);+
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        return desktop;+
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    case QStyle::SP_TrashIcon:+
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        if (trashcan.isNull())+
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            trashcan = QApplication::style()->standardIcon(name);+
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        return trashcan;+
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    case QStyle::SP_DirHomeIcon:+
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        if (home.isNull())+
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            home = QApplication::style()->standardIcon(name);+
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        return home;+
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    default:+
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        return QIcon();+
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    }+
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    return QIcon();+
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}+
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+
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/*!+
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  Constructs a file icon provider.+
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*/+
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+
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QFileIconProvider::QFileIconProvider()+
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    : d_ptr(new QFileIconProviderPrivate)+
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{+
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}+
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+
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/*!+
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  Destroys the file icon provider.+
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+
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*/+
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+
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QFileIconProvider::~QFileIconProvider()+
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{+
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}+
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+
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/*!+
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  Returns an icon set for the given \a type.+
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*/+
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+
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QIcon QFileIconProvider::icon(IconType type) const+
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{+
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    Q_D(const QFileIconProvider);+
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    switch (type) {+
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    case Computer:+
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        return d->getIcon(QStyle::SP_ComputerIcon);+
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    case Desktop:+
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        return d->getIcon(QStyle::SP_DesktopIcon);+
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    case Trashcan:+
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        return d->getIcon(QStyle::SP_TrashIcon);+
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    case Network:+
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        return d->getIcon(QStyle::SP_DriveNetIcon);+
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    case Drive:+
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        return d->getIcon(QStyle::SP_DriveHDIcon);+
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    case Folder:+
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        return d->getIcon(QStyle::SP_DirIcon);+
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    case File:+
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        return d->getIcon(QStyle::SP_FileIcon);+
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    default:+
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        break;+
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    };+
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    return QIcon();+
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}+
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+
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#ifdef Q_WS_WIN+
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QIcon QFileIconProviderPrivate::getWinIcon(const QFileInfo &fileInfo) const+
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{+
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    QIcon retIcon;+
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    const QString fileExtension = QLatin1Char('.') + fileInfo.suffix().toUpper();+
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+
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    QString key;+
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    if (fileInfo.isFile() && !fileInfo.isExecutable() && !fileInfo.isSymLink())+
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        key = QLatin1String("qt_") + fileExtension;+
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+
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    QPixmap pixmap;+
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    if (!key.isEmpty()) {+
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        QPixmapCache::find(key, pixmap);+
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    }+
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+
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    if (!pixmap.isNull()) {+
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        retIcon.addPixmap(pixmap);+
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        if (QPixmapCache::find(key + QLatin1Char('l'), pixmap))+
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            retIcon.addPixmap(pixmap);+
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        return retIcon;+
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    }+
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+
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    /* We don't use the variable, but by storing it statically, we+
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     * ensure CoInitialize is only called once. */+
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    static HRESULT comInit = CoInitialize(NULL);+
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    Q_UNUSED(comInit);+
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+
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    SHFILEINFO info;+
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    unsigned long val = 0;+
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+
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    //Get the small icon+
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#ifndef Q_OS_WINCE+
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    val = SHGetFileInfo((const wchar_t *)QDir::toNativeSeparators(fileInfo.filePath()).utf16(), 0, &info,+
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                        sizeof(SHFILEINFO), SHGFI_ICON|SHGFI_SMALLICON|SHGFI_SYSICONINDEX|SHGFI_ADDOVERLAYS|SHGFI_OVERLAYINDEX);+
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#else+
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    val = SHGetFileInfo((const wchar_t *)QDir::toNativeSeparators(fileInfo.filePath()).utf16(), 0, &info,+
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                        sizeof(SHFILEINFO), SHGFI_SMALLICON|SHGFI_SYSICONINDEX);+
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#endif+
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+
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    // Even if GetFileInfo returns a valid result, hIcon can be empty in some cases+
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    if (val && info.hIcon) {+
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        if (fileInfo.isDir() && !fileInfo.isRoot()) {+
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            //using the unique icon index provided by windows save us from duplicate keys+
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            key = QString::fromLatin1("qt_dir_%1").arg(info.iIcon);+
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            QPixmapCache::find(key, pixmap);+
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            if (!pixmap.isNull()) {+
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                retIcon.addPixmap(pixmap);+
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                if (QPixmapCache::find(key + QLatin1Char('l'), pixmap))+
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                    retIcon.addPixmap(pixmap);+
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                DestroyIcon(info.hIcon);+
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                return retIcon;+
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            }+
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        }+
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        if (pixmap.isNull()) {+
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#ifndef Q_OS_WINCE+
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            pixmap = QPixmap::fromWinHICON(info.hIcon);+
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#else+
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            pixmap = QPixmap::fromWinHICON(ImageList_GetIcon((HIMAGELIST) val, info.iIcon, ILD_NORMAL));+
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#endif+
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            if (!pixmap.isNull()) {+
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                retIcon.addPixmap(pixmap);+
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                if (!key.isEmpty())+
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                    QPixmapCache::insert(key, pixmap);+
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            }+
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            else {+
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              qWarning("QFileIconProviderPrivate::getWinIcon() no small icon found");+
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            }+
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        }+
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        DestroyIcon(info.hIcon);+
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    }+
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+
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    //Get the big icon+
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#ifndef Q_OS_WINCE+
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    val = SHGetFileInfo((const wchar_t *)QDir::toNativeSeparators(fileInfo.filePath()).utf16(), 0, &info,+
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                        sizeof(SHFILEINFO), SHGFI_ICON|SHGFI_LARGEICON|SHGFI_SYSICONINDEX|SHGFI_ADDOVERLAYS|SHGFI_OVERLAYINDEX);+
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#else+
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    val = SHGetFileInfo((const wchar_t *)QDir::toNativeSeparators(fileInfo.filePath()).utf16(), 0, &info,+
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                        sizeof(SHFILEINFO), SHGFI_LARGEICON|SHGFI_SYSICONINDEX);+
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#endif+
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    if (val && info.hIcon) {+
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        if (fileInfo.isDir() && !fileInfo.isRoot()) {+
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            //using the unique icon index provided by windows save us from duplicate keys+
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            key = QString::fromLatin1("qt_dir_%1").arg(info.iIcon);+
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        }+
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#ifndef Q_OS_WINCE+
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        pixmap = QPixmap::fromWinHICON(info.hIcon);+
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#else+
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        pixmap = QPixmap::fromWinHICON(ImageList_GetIcon((HIMAGELIST) val, info.iIcon, ILD_NORMAL));+
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#endif+
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        if (!pixmap.isNull()) {+
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            retIcon.addPixmap(pixmap);+
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            if (!key.isEmpty())+
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                QPixmapCache::insert(key + QLatin1Char('l'), pixmap);+
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        }+
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        else {+
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            qWarning("QFileIconProviderPrivate::getWinIcon() no large icon found");+
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        }+
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        DestroyIcon(info.hIcon);+
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    }+
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    return retIcon;+
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}+
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+
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#elif defined(Q_WS_MAC)+
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QIcon QFileIconProviderPrivate::getMacIcon(const QFileInfo &fi) const+
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{+
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    QIcon retIcon;+
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    QString fileExtension = fi.suffix().toUpper();+
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    fileExtension.prepend(QLatin1String("."));+
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+
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    const QString keyBase = QLatin1String("qt_") + fileExtension;+
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+
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    QPixmap pixmap;+
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    if (fi.isFile() && !fi.isExecutable() && !fi.isSymLink()) {+
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        QPixmapCache::find(keyBase + QLatin1String("16"), pixmap);+
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    }+
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+
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    if (!pixmap.isNull()) {+
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        retIcon.addPixmap(pixmap);+
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        if (QPixmapCache::find(keyBase + QLatin1String("32"), pixmap)) {+
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            retIcon.addPixmap(pixmap);+
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            if (QPixmapCache::find(keyBase + QLatin1String("64"), pixmap)) {+
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                retIcon.addPixmap(pixmap);+
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                if (QPixmapCache::find(keyBase + QLatin1String("128"), pixmap)) {+
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                    retIcon.addPixmap(pixmap);+
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                    return retIcon;+
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                }+
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            }+
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        }+
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    }+
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+
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+
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    FSRef macRef;+
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    OSStatus status = FSPathMakeRef(reinterpret_cast<const UInt8*>(fi.canonicalFilePath().toUtf8().constData()),+
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                                    &macRef, 0);+
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    if (status != noErr)+
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        return retIcon;+
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    FSCatalogInfo info;+
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    HFSUniStr255 macName;+
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    status = FSGetCatalogInfo(&macRef, kIconServicesCatalogInfoMask, &info, &macName, 0, 0);+
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    if (status != noErr)+
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        return retIcon;+
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    IconRef iconRef;+
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    SInt16 iconLabel;+
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    status = GetIconRefFromFileInfo(&macRef, macName.length, macName.unicode,+
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                                    kIconServicesCatalogInfoMask, &info, kIconServicesNormalUsageFlag,+
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                                    &iconRef, &iconLabel);+
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    if (status != noErr)+
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        return retIcon;+
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    qt_mac_constructQIconFromIconRef(iconRef, 0, &retIcon);+
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    ReleaseIconRef(iconRef);+
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+
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    pixmap = retIcon.pixmap(16);+
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    QPixmapCache::insert(keyBase + QLatin1String("16"), pixmap);+
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    pixmap = retIcon.pixmap(32);+
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    QPixmapCache::insert(keyBase + QLatin1String("32"), pixmap);+
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    pixmap = retIcon.pixmap(64);+
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    QPixmapCache::insert(keyBase + QLatin1String("64"), pixmap);+
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    pixmap = retIcon.pixmap(128);+
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    QPixmapCache::insert(keyBase + QLatin1String("128"), pixmap);+
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+
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    return retIcon;+
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}+
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#endif+
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+
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+
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/*!+
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  Returns an icon for the file described by \a info.+
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*/+
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+
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QIcon QFileIconProvider::icon(const QFileInfo &info) const+
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{+
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    Q_D(const QFileIconProvider);+
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+
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    QIcon platformIcon = qt_guiPlatformPlugin()->fileSystemIcon(info);+
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    if (!platformIcon.isNull())+
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        return platformIcon;+
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+
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#if defined(Q_WS_X11) && !defined(QT_NO_STYLE_GTK)+
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    if (X11->desktopEnvironment == DE_GNOME) {+
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        QIcon gtkIcon = QGtkStylePrivate::getFilesystemIcon(info);+
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        if (!gtkIcon.isNull())+
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            return gtkIcon;+
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    }+
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#endif+
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+
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#ifdef Q_WS_MAC+
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    QIcon retIcon = d->getMacIcon(info);+
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    if (!retIcon.isNull())+
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        return retIcon;+
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#elif defined Q_WS_WIN+
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    QIcon icon = d->getWinIcon(info);+
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    if (!icon.isNull())+
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        return icon;+
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#endif+
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    if (info.isRoot())+
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#if defined (Q_WS_WIN) && !defined(Q_WS_WINCE)+
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    {+
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        UINT type = GetDriveType((wchar_t *)info.absoluteFilePath().utf16());+
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+
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        switch (type) {+
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        case DRIVE_REMOVABLE:+
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            return d->getIcon(QStyle::SP_DriveFDIcon);+
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        case DRIVE_FIXED:+
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            return d->getIcon(QStyle::SP_DriveHDIcon);+
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        case DRIVE_REMOTE:+
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            return d->getIcon(QStyle::SP_DriveNetIcon);+
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        case DRIVE_CDROM:+
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            return d->getIcon(QStyle::SP_DriveCDIcon);+
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        case DRIVE_RAMDISK:+
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        case DRIVE_UNKNOWN:+
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        case DRIVE_NO_ROOT_DIR:+
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        default:+
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            return d->getIcon(QStyle::SP_DriveHDIcon);+
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        }+
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    }+
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#else+
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    return d->getIcon(QStyle::SP_DriveHDIcon);+
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#endif+
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    if (info.isFile()) {+
−
        if (info.isSymLink())+
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            return d->getIcon(QStyle::SP_FileLinkIcon);+
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        else+
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            return d->getIcon(QStyle::SP_FileIcon);+
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    }+
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  if (info.isDir()) {+
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    if (info.isSymLink()) {+
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      return d->getIcon(QStyle::SP_DirLinkIcon);+
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    } else {+
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      if (info.absoluteFilePath() == d->homePath) {+
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        return d->getIcon(QStyle::SP_DirHomeIcon);+
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      } else {+
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        return d->getIcon(QStyle::SP_DirIcon);+
−
      }+
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    }+
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  }+
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  return QIcon();+
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}+
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+
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/*!+
−
  Returns the type of the file described by \a info.+
−
*/+
−
+
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QString QFileIconProvider::type(const QFileInfo &info) const+
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{+
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    if (info.isRoot())+
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        return QApplication::translate("QFileDialog", "Drive");+
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    if (info.isFile()) {+
−
        if (!info.suffix().isEmpty())+
−
            return info.suffix() + QLatin1Char(' ') + QApplication::translate("QFileDialog", "File");+
−
        return QApplication::translate("QFileDialog", "File");+
−
    }+
−
+
−
    if (info.isDir())+
−
#ifdef Q_WS_WIN+
−
        return QApplication::translate("QFileDialog", "File Folder", "Match Windows Explorer");+
−
#else+
−
        return QApplication::translate("QFileDialog", "Folder", "All other platforms");+
−
#endif+
−
    // Windows   - "File Folder"+
−
    // OS X      - "Folder"+
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    // Konqueror - "Folder"+
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    // Nautilus  - "folder"+
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+
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    if (info.isSymLink())+
−
#ifdef Q_OS_MAC+
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        return QApplication::translate("QFileDialog", "Alias", "Mac OS X Finder");+
−
#else+
−
        return QApplication::translate("QFileDialog", "Shortcut", "All other platforms");+
−
#endif+
−
    // OS X      - "Alias"+
−
    // Windows   - "Shortcut"+
−
    // Konqueror - "Folder" or "TXT File" i.e. what it is pointing to+
−
    // Nautilus  - "link to folder" or "link to object file", same as Konqueror+
−
+
−
    return QApplication::translate("QFileDialog", "Unknown");+
−
}+
−
+
−
QT_END_NAMESPACE+
−
+
−
#endif+
−