/****************************************************************************+
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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 "qguiplatformplugin_p.h"+
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#include <qdebug.h>+
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#include <qfile.h>+
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#include <qdir.h>+
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#include <qsettings.h>+
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#include "private/qfactoryloader_p.h"+
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#include "qstylefactory.h"+
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#include "qapplication.h"+
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#include "qplatformdefs.h"+
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#include "qicon.h"+
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+
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#ifdef Q_WS_WINCE+
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#include "qguifunctions_wince.h"+
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extern bool qt_wince_is_smartphone(); //qguifunctions_wince.cpp+
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extern bool qt_wince_is_mobile();     //qguifunctions_wince.cpp+
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extern bool qt_wince_is_pocket_pc();  //qguifunctions_wince.cpp+
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#endif+
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+
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+
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#if defined(Q_WS_X11)+
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#include <private/qkde_p.h>+
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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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+
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QT_BEGIN_NAMESPACE+
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+
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+
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/*! \internal+
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    Return (an construct if necesseray) the Gui Platform plugin.+
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+
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    The plugin key to be loaded is inside the QT_PLATFORM_PLUGIN environment variable.+
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    If it is not set, it will be the DESKTOP_SESSION on X11.+
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+
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    If no plugin can be loaded, the default one is returned.+
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 */+
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QGuiPlatformPlugin *qt_guiPlatformPlugin()+
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{+
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    static QGuiPlatformPlugin *plugin;+
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    if (!plugin)+
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    {+
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#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)+
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+
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        QString key = QString::fromLocal8Bit(qgetenv("QT_PLATFORM_PLUGIN"));+
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#ifdef Q_WS_X11+
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        if (key.isEmpty()) {+
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            switch(X11->desktopEnvironment) {+
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            case DE_KDE:+
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                key = QString::fromLatin1("kde");+
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                break;+
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            default:+
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                key = QString::fromLocal8Bit(qgetenv("DESKTOP_SESSION"));+
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                break;+
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            }+
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        }+
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#endif+
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+
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        if (!key.isEmpty() && QApplication::desktopSettingsAware()) {+
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            QFactoryLoader loader(QGuiPlatformPluginInterface_iid, QLatin1String("/gui_platform"));+
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            plugin = qobject_cast<QGuiPlatformPlugin *>(loader.instance(key));+
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        }+
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#endif // QT_NO_LIBRARY+
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+
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        if(!plugin) {+
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            static QGuiPlatformPlugin def;+
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            plugin = &def;+
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        }+
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    }+
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    return plugin;+
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}+
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+
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+
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/* \class QPlatformPlugin+
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    QGuiPlatformPlugin can be used to integrate Qt applications in a platform built on top of Qt.+
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    The application developer should not know or use the plugin, it is only used by Qt internaly.+
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+
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    But full platform that are built on top of Qt may provide a plugin so 3rd party Qt application+
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    running in the platform are integrated.+
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 */+
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+
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/*+
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    The constructor can be used to install hooks in Qt+
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 */+
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QGuiPlatformPlugin::QGuiPlatformPlugin(QObject *parent) : QObject(parent) {}+
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QGuiPlatformPlugin::~QGuiPlatformPlugin() {}+
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+
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+
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/* return the string key to be used by default the application */+
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QString QGuiPlatformPlugin::styleName()+
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{+
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#if defined(Q_WS_WIN) && defined(Q_WS_WINCE)+
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    if (qt_wince_is_smartphone() || qt_wince_is_pocket_pc())+
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        return QLatin1String("WindowsMobile");+
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    else+
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        return QLatin1String("WindowsCE");+
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#elif defined(Q_WS_WIN)+
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    if ((QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA+
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        && QSysInfo::WindowsVersion < QSysInfo::WV_NT_based))+
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        return QLatin1String("WindowsVista");+
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    else if ((QSysInfo::WindowsVersion >= QSysInfo::WV_XP+
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        && QSysInfo::WindowsVersion < QSysInfo::WV_NT_based))+
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        return QLatin1String("WindowsXP");+
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    else+
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        return QLatin1String("Windows");                // default styles for Windows+
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#elif defined(Q_WS_X11) && defined(Q_OS_SOLARIS)+
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    return QLatin1String("CDE");                        // default style for X11 on Solaris+
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#elif defined(Q_WS_S60)+
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    return QLatin1String("S60");                        // default style for Symbian with S60+
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#elif defined(Q_OS_SYMBIAN)+
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    return QLatin1String("Windows");                    // default style for Symbian without S60+
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#elif defined(Q_WS_X11) && defined(Q_OS_IRIX)+
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    return QLatin1String("SGI");                        // default style for X11 on IRIX+
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#elif defined(Q_WS_QWS)+
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    return QLatin1String("Plastique");                  // default style for X11 and small devices+
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#elif defined(Q_WS_MAC)+
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    return QLatin1String("Macintosh");              // default style for all Mac's+
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#elif defined(Q_WS_X11)+
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    QString stylename;+
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    switch(X11->desktopEnvironment) {+
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    case DE_KDE:+
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        stylename = QKde::kdeStyle();+
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        break;+
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    case DE_GNOME: {+
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        QStringList availableStyles = QStyleFactory::keys();+
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        // Set QGtkStyle for GNOME if available+
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        QString gtkStyleKey = QString::fromLatin1("GTK+");+
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        if (availableStyles.contains(gtkStyleKey)) {+
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            stylename = gtkStyleKey;+
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            break;+
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        }+
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        if (X11->use_xrender)+
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            stylename = QLatin1String("cleanlooks");+
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        else+
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            stylename = QLatin1String("windows");+
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        break;+
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    }+
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    case DE_CDE:+
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        stylename = QLatin1String("cde");+
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        break;+
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    default:+
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        // Don't do anything+
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        break;+
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    }+
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    return stylename;+
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#endif+
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}+
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+
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/* return an aditional default palette  (only work on X11) */+
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QPalette QGuiPlatformPlugin::palette()+
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{+
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#ifdef Q_WS_X11+
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    if (QApplication::desktopSettingsAware() && X11->desktopEnvironment == DE_KDE)+
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        return QKde::kdePalette();+
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#endif+
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+
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    return QPalette();+
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}+
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+
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/* the default icon theme name for QIcon::fromTheme. */+
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QString QGuiPlatformPlugin::systemIconThemeName()+
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{+
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    QString result;+
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#ifdef Q_WS_X11+
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    if (X11->desktopEnvironment == DE_GNOME) {+
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        result = QString::fromLatin1("gnome");+
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#ifndef QT_NO_STYLE_GTK+
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        result = QGtkStylePrivate::getGConfString(QLatin1String("/desktop/gnome/interface/icon_theme"), result);+
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#endif+
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    } else if (X11->desktopEnvironment == DE_KDE) {+
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        result =  X11->desktopVersion >= 4 ? QString::fromLatin1("oxygen") : QString::fromLatin1("crystalsvg");+
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        QSettings settings(QKde::kdeHome() + QLatin1String("/share/config/kdeglobals"), QSettings::IniFormat);+
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        settings.beginGroup(QLatin1String("Icons"));+
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        result = settings.value(QLatin1String("Theme"), result).toString();+
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    }+
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#endif+
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    return result;+
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}+
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+
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+
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QStringList QGuiPlatformPlugin::iconThemeSearchPaths()+
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{+
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    QStringList paths;+
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#if defined(Q_WS_X11)+
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    QString xdgDirString = QFile::decodeName(getenv("XDG_DATA_DIRS"));+
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    if (xdgDirString.isEmpty())+
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        xdgDirString = QLatin1String("/usr/local/share/:/usr/share/");+
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+
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    QStringList xdgDirs = xdgDirString.split(QLatin1Char(':'));+
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+
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    for (int i = 0 ; i < xdgDirs.size() ; ++i) {+
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        QDir dir(xdgDirs[i]);+
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        if (dir.exists())+
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            paths.append(dir.path() + QLatin1String("/icons"));+
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    }+
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    if (X11->desktopEnvironment == DE_KDE) {+
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        paths << QLatin1Char(':') + QKde::kdeHome() + QLatin1String("/share/icons");+
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        QStringList kdeDirs = QFile::decodeName(getenv("KDEDIRS")).split(QLatin1Char(':'));+
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        for (int i = 0 ; i< kdeDirs.count() ; ++i) {+
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            QDir dir(QLatin1Char(':') + kdeDirs.at(i) + QLatin1String("/share/icons"));+
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            if (dir.exists())+
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                paths.append(dir.path());+
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        }+
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    }+
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+
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    // Add home directory first in search path+
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    QDir homeDir(QDir::homePath() + QLatin1String("/.icons"));+
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    if (homeDir.exists())+
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        paths.prepend(homeDir.path());+
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#endif+
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+
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#if defined(Q_WS_WIN)+
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    paths.append(qApp->applicationDirPath() + QLatin1String("/icons"));+
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#elif defined(Q_WS_MAC)+
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    paths.append(qApp->applicationDirPath() + QLatin1String("/../Resources/icons"));+
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#endif+
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    return paths;+
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}+
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+
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/* backend for QFileIconProvider,  null icon means default */+
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QIcon QGuiPlatformPlugin::fileSystemIcon(const QFileInfo &)+
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{+
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    return QIcon();+
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}+
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+
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/* Like QStyle::styleHint */+
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int QGuiPlatformPlugin::platformHint(PlatformHint hint)+
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{+
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    int ret = 0;+
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    switch(hint)+
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    {+
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        case PH_ToolButtonStyle:+
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            ret = Qt::ToolButtonIconOnly;+
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#ifdef Q_WS_X11+
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            if (X11->desktopEnvironment == DE_KDE && X11->desktopVersion >= 4+
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                && QApplication::desktopSettingsAware()) {+
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                ret = QKde::kdeToolButtonStyle();+
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            }+
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#endif+
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            break;+
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        case PH_ToolBarIconSize:+
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#ifdef Q_WS_X11+
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            if (X11->desktopEnvironment == DE_KDE && X11->desktopVersion >= 4+
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                && QApplication::desktopSettingsAware()) {+
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                ret = QKde::kdeToolBarIconSize();+
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            }+
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#endif+
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            //by default keep ret = 0 so QCommonStyle will use the style default+
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            break;+
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        default:+
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            break;+
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    }+
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    return ret;+
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}+
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+
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+
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QT_END_NAMESPACE+
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