/****************************************************************************
**
** 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.
**
**
**
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** $QT_END_LICENSE$
**
****************************************************************************/

#include "qguiapplication.h"

#include "private/qguiapplication_p.h"
#include "private/qplatformintegrationfactory_qpa_p.h"
#include "private/qevent_p.h"
#include "qfont.h"
#include "qplatformfontdatabase_qpa.h"

#include <QtCore/QAbstractEventDispatcher>
#include <QtCore/private/qcoreapplication_p.h>
#include <QtCore/private/qabstracteventdispatcher_p.h>
#include <QtCore/qmutex.h>
#include <QtCore/private/qthread_p.h>
#include <QtDebug>
#include <qpalette.h>
#include <qscreen.h>

#include <QtGui/QPlatformIntegration>
#include <QtGui/QGenericPluginFactory>

#include <QWindowSystemInterface>
#include "private/qwindowsysteminterface_qpa_p.h"
#include "private/qwindow_p.h"
#include "private/qkeymapper_p.h"
#include "private/qcursor_p.h"
#include "private/qdnd_p.h"
#ifndef QT_NO_CURSOR
#include "qplatformcursor_qpa.h"
#endif

#include <QtGui/QPixmap>

#ifndef QT_NO_CLIPBOARD
#include <QtGui/QClipboard>
#endif

QT_BEGIN_NAMESPACE

Q_GUI_EXPORT bool qt_is_gui_used = true;

Qt::MouseButtons QGuiApplicationPrivate::mouse_buttons = Qt::NoButton;
Qt::KeyboardModifiers QGuiApplicationPrivate::modifier_buttons = Qt::NoModifier;

int QGuiApplicationPrivate::keyboard_input_time = 400;
int QGuiApplicationPrivate::mouse_double_click_time = 400;
QPointF QGuiApplicationPrivate::lastCursorPosition(0.0, 0.0);

QPlatformIntegration *QGuiApplicationPrivate::platform_integration = 0;

bool QGuiApplicationPrivate::app_do_modal = false;

QPalette *QGuiApplicationPrivate::app_pal = 0;        // default application palette

Qt::MouseButtons QGuiApplicationPrivate::buttons = Qt::NoButton;
ulong QGuiApplicationPrivate::mousePressTime = 0;
Qt::MouseButton QGuiApplicationPrivate::mousePressButton = Qt::NoButton;
int QGuiApplicationPrivate::mousePressX = 0;
int QGuiApplicationPrivate::mousePressY = 0;
int QGuiApplicationPrivate::mouse_double_click_distance = 5;

bool QGuiApplicationPrivate::quitOnLastWindowClosed = true;

static Qt::LayoutDirection layout_direction = Qt::LeftToRight;
static bool force_reverse = false;

QGuiApplicationPrivate *QGuiApplicationPrivate::self = 0;

#ifndef QT_NO_CLIPBOARD
QClipboard *QGuiApplicationPrivate::qt_clipboard = 0;
#endif

QList<QScreen *> QGuiApplicationPrivate::screen_list;

QWindowList QGuiApplicationPrivate::window_list;
QWindow *QGuiApplicationPrivate::active_window = 0;

Q_GLOBAL_STATIC(QMutex, applicationFontMutex)
QFont *QGuiApplicationPrivate::app_font = 0;

extern int qRegisterGuiVariant();
extern int qUnregisterGuiVariant();
extern void qInitDrawhelperAsm();
extern void qInitImageConversions();

static bool qt_detectRTLLanguage()
{
    return force_reverse ^
        (QCoreApplication::tr("QT_LAYOUT_DIRECTION",
                         "Translate this string to the string 'LTR' in left-to-right"
                         " languages or to 'RTL' in right-to-left languages (such as Hebrew"
                         " and Arabic) to get proper widget layout.") == QLatin1String("RTL"));
}


QGuiApplication::QGuiApplication(int &argc, char **argv, int flags)
    : QCoreApplication(*new QGuiApplicationPrivate(argc, argv, flags))
{
    d_func()->init();

    QCoreApplicationPrivate::eventDispatcher->startingUp();
}

QGuiApplication::QGuiApplication(QGuiApplicationPrivate &p)
    : QCoreApplication(p)
{
    d_func()->init();
}

QGuiApplication::~QGuiApplication()
{
    Q_D(QGuiApplication);
    // flush clipboard contents
    if (QGuiApplicationPrivate::qt_clipboard) {
        QEvent event(QEvent::Clipboard);
        QGuiApplication::sendEvent(QGuiApplicationPrivate::qt_clipboard, &event);
    }

    d->eventDispatcher->closingDown();
    d->eventDispatcher = 0;

    delete QGuiApplicationPrivate::qt_clipboard;
    QGuiApplicationPrivate::qt_clipboard = 0;

    delete QGuiApplicationPrivate::app_pal;
    QGuiApplicationPrivate::app_pal = 0;

    qUnregisterGuiVariant();

#ifndef QT_NO_CURSOR
    d->cursor_list.clear();
#endif
}

QGuiApplicationPrivate::QGuiApplicationPrivate(int &argc, char **argv, int flags)
    : QCoreApplicationPrivate(argc, argv, flags)
{
    self = this;
}

QWindow *QGuiApplication::activeWindow()
{
    return QGuiApplicationPrivate::active_window;
}

QWindowList QGuiApplication::topLevelWindows()
{
    return QGuiApplicationPrivate::window_list;
}

QScreen *QGuiApplication::primaryScreen()
{
    if (QGuiApplicationPrivate::screen_list.isEmpty())
        return 0;
    return QGuiApplicationPrivate::screen_list.at(0);
}

QList<QScreen *> QGuiApplication::screens()
{
    return QGuiApplicationPrivate::screen_list;
}

QWindow *QGuiApplication::topLevelAt(const QPoint &pos)
{
    QList<QScreen *> screens = QGuiApplication::screens();
    QList<QScreen *>::const_iterator screen = screens.constBegin();
    QList<QScreen *>::const_iterator end = screens.constEnd();

    while (screen != end) {
        if ((*screen)->geometry().contains(pos))
            return (*screen)->handle()->topLevelAt(pos);
        ++screen;
    }
    return 0;
}


static void init_platform(QString name, const QString &platformPluginPath)
{
    if (name.isEmpty()) {
        const QStringList keys = QPlatformIntegrationFactory::keys(platformPluginPath);
#if defined(Q_OS_MAC)
        const QString defaultPlatform = QLatin1String("cocoa");
#elif defined (Q_OS_WIN)
        const QString defaultPlatform = QLatin1String("windows");
#else
        const QString defaultPlatform = QLatin1String("xcb");
#endif
        if (keys.contains(defaultPlatform)) {
            qWarning("No platform plugin argument was specified, defaulting to \"%s\".",
                     qPrintable(defaultPlatform));
            name = defaultPlatform;
        } else {
            qFatal("No platform plugin argument was specified and the default plugin \"%s\" is not available",
                   qPrintable(defaultPlatform));
        }
    }

    QGuiApplicationPrivate::platform_integration = QPlatformIntegrationFactory::create(name, platformPluginPath);
    if (!QGuiApplicationPrivate::platform_integration) {
        QStringList keys = QPlatformIntegrationFactory::keys(platformPluginPath);
        QString fatalMessage =
            QString::fromLatin1("Failed to load platform plugin \"%1\". Available platforms are: \n").arg(name);
        foreach(const QString &key, keys) {
            fatalMessage.append(key + QLatin1Char('\n'));
        }
        qFatal("%s", fatalMessage.toLocal8Bit().constData());
    }
}

static void init_plugins(const QList<QByteArray> &pluginList)
{
    for (int i = 0; i < pluginList.count(); ++i) {
        QByteArray pluginSpec = pluginList.at(i);
        qDebug() << "init_plugins" << i << pluginSpec;
        int colonPos = pluginSpec.indexOf(':');
        QObject *plugin;
        if (colonPos < 0)
            plugin = QGenericPluginFactory::create(QLatin1String(pluginSpec), QString());
        else
            plugin = QGenericPluginFactory::create(QLatin1String(pluginSpec.mid(0, colonPos)),
                                                   QLatin1String(pluginSpec.mid(colonPos+1)));
        qDebug() << "	created" << plugin;
    }
}

void QGuiApplicationPrivate::createPlatformIntegration()
{
    Q_Q(QGuiApplication);

    // Use the Qt menus by default. Platform plugins that
    // want to enable a native menu implementation can clear
    // this flag.
    q->setAttribute(Qt::AA_DontUseNativeMenuBar, true);

    // Load the platform integration
    QString platformPluginPath = QLatin1String(qgetenv("QT_QPA_PLATFORM_PLUGIN_PATH"));
    QByteArray platformName;
#ifdef QT_QPA_DEFAULT_PLATFORM_NAME
    platformName = QT_QPA_DEFAULT_PLATFORM_NAME;
#endif
    QByteArray platformNameEnv = qgetenv("QT_QPA_PLATFORM");
    if (!platformNameEnv.isEmpty()) {
        platformName = platformNameEnv;
    }

    // Get command line params

    int j = argc ? 1 : 0;
    for (int i=1; i<argc; i++) {
        if (argv[i] && *argv[i] != '-') {
            argv[j++] = argv[i];
            continue;
        }
        QByteArray arg = argv[i];
        if (arg == "-platformpluginpath") {
            if (++i < argc)
                platformPluginPath = QLatin1String(argv[i]);
        } else if (arg == "-platform") {
            if (++i < argc)
                platformName = argv[i];
        } else {
            argv[j++] = argv[i];
        }
    }

    if (j < argc) {
        argv[j] = 0;
        argc = j;
    }

    init_platform(QLatin1String(platformName), platformPluginPath);

}

void QGuiApplicationPrivate::createEventDispatcher()
{
    if (platform_integration == 0)
        createPlatformIntegration();

    if (!eventDispatcher) {
        QAbstractEventDispatcher *eventDispatcher = platform_integration->guiThreadEventDispatcher();
        setEventDispatcher(eventDispatcher);
    }
}

void QGuiApplicationPrivate::setEventDispatcher(QAbstractEventDispatcher *eventDispatcher)
{
    Q_Q(QGuiApplication);

    if (!QCoreApplicationPrivate::eventDispatcher) {
        QCoreApplicationPrivate::eventDispatcher = eventDispatcher;
        QCoreApplicationPrivate::eventDispatcher->setParent(q);
        threadData->eventDispatcher = eventDispatcher;
    }

}

void QGuiApplicationPrivate::init()
{
    QList<QByteArray> pluginList;
    // Get command line params

    int j = argc ? 1 : 0;
    for (int i=1; i<argc; i++) {
        if (argv[i] && *argv[i] != '-') {
            argv[j++] = argv[i];
            continue;
        }
        QByteArray arg = argv[i];
        if (arg == "-plugin") {
            if (++i < argc)
                pluginList << argv[i];
        } else if (arg == "-reverse") {
            force_reverse = true;
            QGuiApplication::setLayoutDirection(Qt::RightToLeft);
        } else {
            argv[j++] = argv[i];
        }
    }

    if (j < argc) {
        argv[j] = 0;
        argc = j;
    }

    if (platform_integration == 0)
        createPlatformIntegration();

    init_plugins(pluginList);

    // Set up which span functions should be used in raster engine...
    qInitDrawhelperAsm();
    // and QImage conversion functions
    qInitImageConversions();

    QFont::initialize();

#ifndef QT_NO_CURSOR
    QCursorData::initialize();
#endif

    // trigger registering of QVariant's GUI types
    qRegisterGuiVariant();

    is_app_running = true;
}

QGuiApplicationPrivate::~QGuiApplicationPrivate()
{
    is_app_closing = true;
    is_app_running = false;

    QFont::cleanup();

#ifndef QT_NO_CURSOR
    QCursorData::cleanup();
#endif

    layout_direction = Qt::LeftToRight;

    cleanupThreadData();

    delete platform_integration;
    platform_integration = 0;
}

#if 0
#ifndef QT_NO_CURSOR
QCursor *overrideCursor();
void setOverrideCursor(const QCursor &);
void changeOverrideCursor(const QCursor &);
void restoreOverrideCursor();
#endif

static QFont font();
static QFont font(const QWidget*);
static QFont font(const char *className);
static void setFont(const QFont &, const char* className = 0);
static QFontMetrics fontMetrics();

#ifndef QT_NO_CLIPBOARD
static QClipboard *clipboard();
#endif
#endif

Qt::KeyboardModifiers QGuiApplication::keyboardModifiers()
{
    return QGuiApplicationPrivate::modifier_buttons;
}

Qt::MouseButtons QGuiApplication::mouseButtons()
{
    return QGuiApplicationPrivate::mouse_buttons;
}

void QGuiApplication::setDoubleClickInterval(int ms)
{
    QGuiApplicationPrivate::mouse_double_click_time = ms;
}

int QGuiApplication::doubleClickInterval()
{
    return QGuiApplicationPrivate::mouse_double_click_time;
}

void QGuiApplication::setKeyboardInputInterval(int ms)
{
    QGuiApplicationPrivate::keyboard_input_time = ms;
}

int QGuiApplication::keyboardInputInterval()
{
    return QGuiApplicationPrivate::keyboard_input_time;
}

QPlatformNativeInterface *QGuiApplication::platformNativeInterface()
{
    QPlatformIntegration *pi = QGuiApplicationPrivate::platformIntegration();
    return pi->nativeInterface();
}

int QGuiApplication::exec()
{
    return QCoreApplication::exec();
}

bool QGuiApplication::notify(QObject *object, QEvent *event)
{
    return QCoreApplication::notify(object, event);
}

bool QGuiApplication::event(QEvent *e)
{
    if(e->type() == QEvent::LanguageChange) {
        setLayoutDirection(qt_detectRTLLanguage()?Qt::RightToLeft:Qt::LeftToRight);
    }
    return QCoreApplication::event(e);
}

bool QGuiApplication::compressEvent(QEvent *event, QObject *receiver, QPostEventList *postedEvents)
{
    return QCoreApplication::compressEvent(event, receiver, postedEvents);
}

void QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent *e)
{
    switch(e->type) {
    case QWindowSystemInterfacePrivate::Mouse:
        QGuiApplicationPrivate::processMouseEvent(static_cast<QWindowSystemInterfacePrivate::MouseEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::Wheel:
        QGuiApplicationPrivate::processWheelEvent(static_cast<QWindowSystemInterfacePrivate::WheelEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::Key:
        QGuiApplicationPrivate::processKeyEvent(static_cast<QWindowSystemInterfacePrivate::KeyEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::Touch:
        QGuiApplicationPrivate::processTouchEvent(static_cast<QWindowSystemInterfacePrivate::TouchEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::GeometryChange:
        QGuiApplicationPrivate::processGeometryChangeEvent(static_cast<QWindowSystemInterfacePrivate::GeometryChangeEvent*>(e));
        break;
    case QWindowSystemInterfacePrivate::Enter:
        QGuiApplicationPrivate::processEnterEvent(static_cast<QWindowSystemInterfacePrivate::EnterEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::Leave:
        QGuiApplicationPrivate::processLeaveEvent(static_cast<QWindowSystemInterfacePrivate::LeaveEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::ActivatedWindow:
        QGuiApplicationPrivate::processActivatedEvent(static_cast<QWindowSystemInterfacePrivate::ActivatedWindowEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::WindowStateChanged:
        QGuiApplicationPrivate::processWindowStateChangedEvent(static_cast<QWindowSystemInterfacePrivate::WindowStateChangedEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::Close:
        QGuiApplicationPrivate::processCloseEvent(
                static_cast<QWindowSystemInterfacePrivate::CloseEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::ScreenCountChange:
        QGuiApplicationPrivate::reportScreenCount(
                static_cast<QWindowSystemInterfacePrivate::ScreenCountEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::ScreenGeometry:
        QGuiApplicationPrivate::reportGeometryChange(
                static_cast<QWindowSystemInterfacePrivate::ScreenGeometryEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::ScreenAvailableGeometry:
        QGuiApplicationPrivate::reportAvailableGeometryChange(
                static_cast<QWindowSystemInterfacePrivate::ScreenAvailableGeometryEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::Map:
        QGuiApplicationPrivate::processMapEvent(static_cast<QWindowSystemInterfacePrivate::MapEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::Unmap:
        QGuiApplicationPrivate::processUnmapEvent(static_cast<QWindowSystemInterfacePrivate::UnmapEvent *>(e));
        break;
    case QWindowSystemInterfacePrivate::Expose:
        QGuiApplicationPrivate::processExposeEvent(static_cast<QWindowSystemInterfacePrivate::ExposeEvent *>(e));
        break;
    default:
        qWarning() << "Unknown user input event type:" << e->type;
        break;
    }
}

void QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent *e)
{
    if (!e->window)
        return;

    QEvent::Type type;
    // move first
    Qt::MouseButtons stateChange = e->buttons ^ buttons;
    if (e->globalPos != QGuiApplicationPrivate::lastCursorPosition && (stateChange != Qt::NoButton)) {
        QWindowSystemInterfacePrivate::MouseEvent * newMouseEvent =
                new QWindowSystemInterfacePrivate::MouseEvent(e->window.data(), e->timestamp, e->localPos, e->globalPos, e->buttons);
        QWindowSystemInterfacePrivate::windowSystemEventQueue.prepend(newMouseEvent); // just in case the move triggers a new event loop
        stateChange = Qt::NoButton;
    }

    QWindow *window = e->window.data();

    QPointF localPoint = e->localPos;
    QPointF globalPoint = e->globalPos;

    Qt::MouseButton button = Qt::NoButton;

    if (QGuiApplicationPrivate::lastCursorPosition != globalPoint) {
        type = QEvent::MouseMove;
        QGuiApplicationPrivate::lastCursorPosition = globalPoint;
        if (qAbs(globalPoint.x() - mousePressX) > mouse_double_click_distance||
            qAbs(globalPoint.y() - mousePressY) > mouse_double_click_distance)
            mousePressButton = Qt::NoButton;
    }
    else { // check to see if a new button has been pressed/released
        for (int check = Qt::LeftButton;
             check <= Qt::XButton2;
             check = check << 1) {
            if (check & stateChange) {
                button = Qt::MouseButton(check);
                break;
            }
        }
        if (button == Qt::NoButton) {
            // Ignore mouse events that don't change the current state
            return;
        }
        buttons = e->buttons;
        if (button & e->buttons) {
            if ((e->timestamp - mousePressTime) < static_cast<ulong>(QGuiApplication::doubleClickInterval()) && button == mousePressButton) {
                type = QEvent::MouseButtonDblClick;
                mousePressButton = Qt::NoButton;
            }
            else {
                type = QEvent::MouseButtonPress;
                mousePressTime = e->timestamp;
                mousePressButton = button;
                const QPoint point = QGuiApplicationPrivate::lastCursorPosition.toPoint();
                mousePressX = point.x();
                mousePressY = point.y();
            }
        }
        else
            type = QEvent::MouseButtonRelease;
    }


    if (window) {
        QMouseEvent ev(type, localPoint, globalPoint, button, buttons, QGuiApplication::keyboardModifiers());
#ifndef QT_NO_CURSOR
        QList<QWeakPointer<QPlatformCursor> > cursors = QPlatformCursorPrivate::getInstances();
        for (int i = 0; i < cursors.count(); ++i)
            if (cursors.at(i))
                cursors.at(i).data()->pointerEvent(ev);
#endif
        QGuiApplication::sendSpontaneousEvent(window, &ev);
        return;
    }
}


//### there's a lot of duplicated logic here -- refactoring required!

void QGuiApplicationPrivate::processWheelEvent(QWindowSystemInterfacePrivate::WheelEvent *e)
{
    if (!e->window)
        return;

    QPointF globalPoint = e->globalPos;
    QGuiApplicationPrivate::lastCursorPosition = globalPoint;

    QWindow *window = e->window.data();

    if (window) {
         QWheelEvent ev(e->localPos, e->globalPos, e->delta, buttons, QGuiApplication::keyboardModifiers(),
                        e->orient);
         QGuiApplication::sendSpontaneousEvent(window, &ev);
         return;
     }
}



// Remember, Qt convention is:  keyboard state is state *before*

void QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent *e)
{
    QWindow *window = e->window.data();
    if (!window)
        return;

    QObject *target = window;

    if (e->nativeScanCode || e->nativeVirtualKey || e->nativeModifiers) {
        QKeyEventEx ev(e->keyType, e->key, e->modifiers, e->unicode, e->repeat, e->repeatCount,
                       e->nativeScanCode, e->nativeVirtualKey, e->nativeModifiers);
        QGuiApplication::sendSpontaneousEvent(target, &ev);
    } else {
        QKeyEvent ev(e->keyType, e->key, e->modifiers, e->unicode, e->repeat, e->repeatCount);
        QGuiApplication::sendSpontaneousEvent(target, &ev);
    }
}

void QGuiApplicationPrivate::processEnterEvent(QWindowSystemInterfacePrivate::EnterEvent *e)
{
    if (!e->enter)
        return;

    QEvent event(QEvent::Enter);
    QCoreApplication::sendSpontaneousEvent(e->enter.data(), &event);
}

void QGuiApplicationPrivate::processLeaveEvent(QWindowSystemInterfacePrivate::LeaveEvent *e)
{
    if (!e->leave)
        return;

    QEvent event(QEvent::Leave);
    QCoreApplication::sendSpontaneousEvent(e->leave.data(), &event);
}

void QGuiApplicationPrivate::processActivatedEvent(QWindowSystemInterfacePrivate::ActivatedWindowEvent *e)
{
    if (!e->activated)
        return;

    QWindow *previous = QGuiApplicationPrivate::active_window;
    QGuiApplicationPrivate::active_window = e->activated.data();
    if (self)
        self->notifyActiveWindowChange(previous);
}

void QGuiApplicationPrivate::processWindowStateChangedEvent(QWindowSystemInterfacePrivate::WindowStateChangedEvent *wse)
{
    if (QWindow *window  = wse->window.data()) {
        QWindowStateChangeEvent e(window->windowState());
        window->d_func()->windowState = wse->newState;
        QGuiApplication::sendSpontaneousEvent(window, &e);
    }
}

void QGuiApplicationPrivate::processGeometryChangeEvent(QWindowSystemInterfacePrivate::GeometryChangeEvent *e)
{
    if (e->tlw.isNull())
       return;

    QWindow *window = e->tlw.data();
    if (!window)
        return;

    QRect newRect = e->newGeometry;
    QRect cr = window->geometry();

    bool isResize = cr.size() != newRect.size();
    bool isMove = cr.topLeft() != newRect.topLeft();

    window->d_func()->geometry = newRect;

    if (isResize) {
        QResizeEvent e(newRect.size(), cr.size());
        QGuiApplication::sendSpontaneousEvent(window, &e);
    }

    if (isMove) {
        //### frame geometry
        QMoveEvent e(newRect.topLeft(), cr.topLeft());
        QGuiApplication::sendSpontaneousEvent(window, &e);
    }
}

void QGuiApplicationPrivate::processCloseEvent(QWindowSystemInterfacePrivate::CloseEvent *e)
{
    if (e->window.isNull())
        return;

    QCloseEvent event;
    QGuiApplication::sendSpontaneousEvent(e->window.data(), &event);
}

void QGuiApplicationPrivate::processTouchEvent(QWindowSystemInterfacePrivate::TouchEvent *)
{
//    translateRawTouchEvent(e->widget.data(), e->devType, e->points);
}

void QGuiApplicationPrivate::reportScreenCount(QWindowSystemInterfacePrivate::ScreenCountEvent *)
{
    // This operation only makes sense after the QGuiApplication constructor runs
    if (QCoreApplication::startingUp())
        return;

    //QGuiApplication::desktop()->d_func()->updateScreenList();
    // signal anything listening for creation or deletion of screens
    //QDesktopWidget *desktop = QGuiApplication::desktop();
    //emit desktop->screenCountChanged(e->count);
}

void QGuiApplicationPrivate::reportGeometryChange(QWindowSystemInterfacePrivate::ScreenGeometryEvent *)
{
    // This operation only makes sense after the QGuiApplication constructor runs
    if (QCoreApplication::startingUp())
        return;
}

void QGuiApplicationPrivate::reportAvailableGeometryChange(
        QWindowSystemInterfacePrivate::ScreenAvailableGeometryEvent *)
{
    // This operation only makes sense after the QGuiApplication constructor runs
    if (QCoreApplication::startingUp())
        return;
}

void QGuiApplicationPrivate::processMapEvent(QWindowSystemInterfacePrivate::MapEvent *e)
{
    if (!e->mapped)
        return;

    QEvent event(QEvent::Map);
    QCoreApplication::sendSpontaneousEvent(e->mapped.data(), &event);
}

void QGuiApplicationPrivate::processUnmapEvent(QWindowSystemInterfacePrivate::UnmapEvent *e)
{
    if (!e->unmapped)
        return;

    QEvent event(QEvent::Unmap);
    QCoreApplication::sendSpontaneousEvent(e->unmapped.data(), &event);
}

void QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent *e)
{
    if (!e->exposed)
        return;

    QExposeEvent event(e->region);
    QCoreApplication::sendSpontaneousEvent(e->exposed.data(), &event);
}

Qt::DropAction QGuiApplicationPrivate::processDrag(QWindow *w, QMimeData *dropData, const QPoint &p)
{
    static QPointer<QWindow> currentDragWindow;
    QDragManager *manager = QDragManager::self();
    if (!dropData) {
        if (currentDragWindow.data() == w)
            currentDragWindow = 0;
        QDragLeaveEvent e;
        QGuiApplication::sendEvent(w, &e);
        manager->global_accepted_action = Qt::IgnoreAction;
        return Qt::IgnoreAction;
    }
    QDragMoveEvent me(p, manager->possible_actions, dropData,
                      QGuiApplication::mouseButtons(), QGuiApplication::keyboardModifiers());
    if (w != currentDragWindow) {
        if (currentDragWindow) {
            QDragLeaveEvent e;
            QGuiApplication::sendEvent(currentDragWindow, &e);
            manager->global_accepted_action = Qt::IgnoreAction;
        }
        currentDragWindow = w;
        QDragEnterEvent e(p, manager->possible_actions, dropData,
                          QGuiApplication::mouseButtons(), QGuiApplication::keyboardModifiers());
        QGuiApplication::sendEvent(w, &e);
        manager->global_accepted_action = e.isAccepted() ? e.dropAction() : Qt::IgnoreAction;
        if (manager->global_accepted_action != Qt::IgnoreAction) {
            me.setDropAction(manager->global_accepted_action);
            me.accept();
        }
    }
    QGuiApplication::sendEvent(w, &me);
    manager->global_accepted_action = me.isAccepted() ? me.dropAction() : Qt::IgnoreAction;
    return manager->global_accepted_action;
}

Qt::DropAction QGuiApplicationPrivate::processDrop(QWindow *w, QMimeData *dropData, const QPoint &p)
{
    QDragManager *manager = QDragManager::self();
    QDropEvent de(p, manager->possible_actions, dropData,
                  QGuiApplication::mouseButtons(), QGuiApplication::keyboardModifiers());
    QGuiApplication::sendEvent(w, &de);
    manager->global_accepted_action = de.isAccepted() ? de.dropAction() : Qt::IgnoreAction;
    return manager->global_accepted_action;
}

#ifndef QT_NO_CLIPBOARD
QClipboard * QGuiApplication::clipboard()
{
    if (QGuiApplicationPrivate::qt_clipboard == 0) {
        if (!qApp) {
            qWarning("QGuiApplication: Must construct a QGuiApplication before accessing a QClipboard");
            return 0;
        }
        QGuiApplicationPrivate::qt_clipboard = new QClipboard(0);
    }
    return QGuiApplicationPrivate::qt_clipboard;
}
#endif

/*!
    Returns the application palette.

    \sa setPalette(), QWidget::palette()
*/
QPalette QGuiApplication::palette()
{
    if (!QGuiApplicationPrivate::app_pal)
        QGuiApplicationPrivate::app_pal = new QPalette(Qt::black);
    return *QGuiApplicationPrivate::app_pal;
}

QFont QGuiApplication::font()
{
    QMutexLocker locker(applicationFontMutex());
    if (!QGuiApplicationPrivate::app_font)
        QGuiApplicationPrivate::app_font =
            new QFont(QGuiApplicationPrivate::platformIntegration()->fontDatabase()->defaultFont());
    return *QGuiApplicationPrivate::app_font;
}

void QGuiApplication::setFont(const QFont &font)
{
    QMutexLocker locker(applicationFontMutex());
    if (!QGuiApplicationPrivate::app_font)
        QGuiApplicationPrivate::app_font = new QFont(font);
    else
        *QGuiApplicationPrivate::app_font = font;
}

/*!
    \fn bool QGuiApplication::isRightToLeft()

    Returns true if the application's layout direction is
    Qt::RightToLeft; otherwise returns false.

    \sa layoutDirection(), isLeftToRight()
*/

/*!
    \fn bool QGuiApplication::isLeftToRight()

    Returns true if the application's layout direction is
    Qt::LeftToRight; otherwise returns false.

    \sa layoutDirection(), isRightToLeft()
*/

void QGuiApplicationPrivate::notifyLayoutDirectionChange()
{
}

void QGuiApplicationPrivate::notifyActiveWindowChange(QWindow *)
{
}


/*!
    \property QGuiApplication::quitOnLastWindowClosed

    \brief whether the application implicitly quits when the last window is
    closed.

    The default is true.

    If this property is true, the applications quits when the last visible
    primary window (i.e. window with no parent) is closed.

    \sa quit(), QWindow::close()
 */

void QGuiApplication::setQuitOnLastWindowClosed(bool quit)
{
    QGuiApplicationPrivate::quitOnLastWindowClosed = quit;
}



bool QGuiApplication::quitOnLastWindowClosed()
{
    return QGuiApplicationPrivate::quitOnLastWindowClosed;
}



void QGuiApplicationPrivate::emitLastWindowClosed()
{
    if (qGuiApp && qGuiApp->d_func()->in_exec) {
        if (QGuiApplicationPrivate::quitOnLastWindowClosed) {
            // get ready to quit, this event might be removed if the
            // event loop is re-entered, however
            QGuiApplication::postEvent(qApp, new QEvent(QEvent::Quit));
        }
        emit qGuiApp->lastWindowClosed();
    }
}


/*!
    \property QGuiApplication::layoutDirection
    \brief the default layout direction for this application

    On system start-up, the default layout direction depends on the
    application's language.

    \sa QWidget::layoutDirection, isLeftToRight(), isRightToLeft()
 */

void QGuiApplication::setLayoutDirection(Qt::LayoutDirection direction)
{
    if (layout_direction == direction || direction == Qt::LayoutDirectionAuto)
        return;

    layout_direction = direction;

    QGuiApplicationPrivate::self->notifyLayoutDirectionChange();
}

Qt::LayoutDirection QGuiApplication::layoutDirection()
{
    return layout_direction;
}

/*!
    \fn QCursor *QGuiApplication::overrideCursor()

    Returns the active application override cursor.

    This function returns 0 if no application cursor has been defined (i.e. the
    internal cursor stack is empty).

    \sa setOverrideCursor(), restoreOverrideCursor()
*/
#ifndef QT_NO_CURSOR
QCursor *QGuiApplication::overrideCursor()
{
    return qGuiApp->d_func()->cursor_list.isEmpty() ? 0 : &qGuiApp->d_func()->cursor_list.first();
}

/*!
    Changes the currently active application override cursor to \a cursor.

    This function has no effect if setOverrideCursor() was not called.

    \sa setOverrideCursor(), overrideCursor(), restoreOverrideCursor(),
    QWidget::setCursor()
 */
void QGuiApplication::changeOverrideCursor(const QCursor &cursor)
{
    if (qGuiApp->d_func()->cursor_list.isEmpty())
        return;
    qGuiApp->d_func()->cursor_list.removeFirst();
    setOverrideCursor(cursor);
}
#endif

/*!
    \fn void QGuiApplication::setOverrideCursor(const QCursor &cursor, bool replace)

    Use changeOverrideCursor(\a cursor) (if \a replace is true) or
    setOverrideCursor(\a cursor) (if \a replace is false).
*/

#ifndef QT_NO_CURSOR
void QGuiApplication::setOverrideCursor(const QCursor &cursor)
{
    qGuiApp->d_func()->cursor_list.prepend(cursor);
}

void QGuiApplication::restoreOverrideCursor()
{
    if (qGuiApp->d_func()->cursor_list.isEmpty())
        return;
    qGuiApp->d_func()->cursor_list.removeFirst();
}
#endif// QT_NO_CURSOR


// Returns the current platform used by keyBindings
uint QGuiApplicationPrivate::currentKeyPlatform()
{
    uint platform = KB_Win;
#ifdef Q_WS_MAC
    platform = KB_Mac;
#elif defined Q_WS_X11
    platform = KB_X11;
    // ## TODO: detect these
#if 0
    if (X11->desktopEnvironment == DE_KDE)
        platform |= KB_KDE;
    if (X11->desktopEnvironment == DE_GNOME)
        platform |= KB_Gnome;
    if (X11->desktopEnvironment == DE_CDE)
        platform |= KB_CDE;
#endif
#endif
    return platform;
}

/*!
    \since 4.2

    Returns the current keyboard input locale.
*/
QLocale QGuiApplication::keyboardInputLocale()
{
    if (!QGuiApplicationPrivate::checkInstance("keyboardInputLocale"))
        return QLocale::c();
    return qt_keymapper_private()->keyboardInputLocale;
}

/*!
    \since 4.2

    Returns the current keyboard input direction.
*/
Qt::LayoutDirection QGuiApplication::keyboardInputDirection()
{
    if (!QGuiApplicationPrivate::checkInstance("keyboardInputDirection"))
        return Qt::LeftToRight;
    return qt_keymapper_private()->keyboardInputDirection;
}

/*!
    \since 4.5
    \fn void QGuiApplication::fontDatabaseChanged()

    This signal is emitted when application fonts are loaded or removed.

    \sa QFontDatabase::addApplicationFont(),
    QFontDatabase::addApplicationFontFromData(),
    QFontDatabase::removeAllApplicationFonts(),
    QFontDatabase::removeApplicationFont()
*/

// These pixmaps approximate the images in the Windows User Interface Guidelines.

// XPM

static const char * const move_xpm[] = {
"11 20 3 1",
".        c None",
#if defined(Q_WS_WIN)
"a        c #000000",
"X        c #FFFFFF", // Windows cursor is traditionally white
#else
"a        c #FFFFFF",
"X        c #000000", // X11 cursor is traditionally black
#endif
"aa.........",
"aXa........",
"aXXa.......",
"aXXXa......",
"aXXXXa.....",
"aXXXXXa....",
"aXXXXXXa...",
"aXXXXXXXa..",
"aXXXXXXXXa.",
"aXXXXXXXXXa",
"aXXXXXXaaaa",
"aXXXaXXa...",
"aXXaaXXa...",
"aXa..aXXa..",
"aa...aXXa..",
"a.....aXXa.",
"......aXXa.",
".......aXXa",
".......aXXa",
"........aa."};

#ifdef Q_WS_WIN
/* XPM */
static const char * const ignore_xpm[] = {
"24 30 3 1",
".        c None",
"a        c #000000",
"X        c #FFFFFF",
"aa......................",
"aXa.....................",
"aXXa....................",
"aXXXa...................",
"aXXXXa..................",
"aXXXXXa.................",
"aXXXXXXa................",
"aXXXXXXXa...............",
"aXXXXXXXXa..............",
"aXXXXXXXXXa.............",
"aXXXXXXaaaa.............",
"aXXXaXXa................",
"aXXaaXXa................",
"aXa..aXXa...............",
"aa...aXXa...............",
"a.....aXXa..............",
"......aXXa.....XXXX.....",
".......aXXa..XXaaaaXX...",
".......aXXa.XaaaaaaaaX..",
"........aa.XaaaXXXXaaaX.",
"...........XaaaaX..XaaX.",
"..........XaaXaaaX..XaaX",
"..........XaaXXaaaX.XaaX",
"..........XaaX.XaaaXXaaX",
"..........XaaX..XaaaXaaX",
"...........XaaX..XaaaaX.",
"...........XaaaXXXXaaaX.",
"............XaaaaaaaaX..",
".............XXaaaaXX...",
"...............XXXX....."};
#endif

/* XPM */
static const char * const copy_xpm[] = {
"24 30 3 1",
".        c None",
"a        c #000000",
"X        c #FFFFFF",
#if defined(Q_WS_WIN) // Windows cursor is traditionally white
"aa......................",
"aXa.....................",
"aXXa....................",
"aXXXa...................",
"aXXXXa..................",
"aXXXXXa.................",
"aXXXXXXa................",
"aXXXXXXXa...............",
"aXXXXXXXXa..............",
"aXXXXXXXXXa.............",
"aXXXXXXaaaa.............",
"aXXXaXXa................",
"aXXaaXXa................",
"aXa..aXXa...............",
"aa...aXXa...............",
"a.....aXXa..............",
"......aXXa..............",
".......aXXa.............",
".......aXXa.............",
"........aa...aaaaaaaaaaa",
#else
"XX......................",
"XaX.....................",
"XaaX....................",
"XaaaX...................",
"XaaaaX..................",
"XaaaaaX.................",
"XaaaaaaX................",
"XaaaaaaaX...............",
"XaaaaaaaaX..............",
"XaaaaaaaaaX.............",
"XaaaaaaXXXX.............",
"XaaaXaaX................",
"XaaXXaaX................",
"XaX..XaaX...............",
"XX...XaaX...............",
"X.....XaaX..............",
"......XaaX..............",
".......XaaX.............",
".......XaaX.............",
"........XX...aaaaaaaaaaa",
#endif
".............aXXXXXXXXXa",
".............aXXXXXXXXXa",
".............aXXXXaXXXXa",
".............aXXXXaXXXXa",
".............aXXaaaaaXXa",
".............aXXXXaXXXXa",
".............aXXXXaXXXXa",
".............aXXXXXXXXXa",
".............aXXXXXXXXXa",
".............aaaaaaaaaaa"};

/* XPM */
static const char * const link_xpm[] = {
"24 30 3 1",
".        c None",
"a        c #000000",
"X        c #FFFFFF",
#if defined(Q_WS_WIN) // Windows cursor is traditionally white
"aa......................",
"aXa.....................",
"aXXa....................",
"aXXXa...................",
"aXXXXa..................",
"aXXXXXa.................",
"aXXXXXXa................",
"aXXXXXXXa...............",
"aXXXXXXXXa..............",
"aXXXXXXXXXa.............",
"aXXXXXXaaaa.............",
"aXXXaXXa................",
"aXXaaXXa................",
"aXa..aXXa...............",
"aa...aXXa...............",
"a.....aXXa..............",
"......aXXa..............",
".......aXXa.............",
".......aXXa.............",
"........aa...aaaaaaaaaaa",
#else
"XX......................",
"XaX.....................",
"XaaX....................",
"XaaaX...................",
"XaaaaX..................",
"XaaaaaX.................",
"XaaaaaaX................",
"XaaaaaaaX...............",
"XaaaaaaaaX..............",
"XaaaaaaaaaX.............",
"XaaaaaaXXXX.............",
"XaaaXaaX................",
"XaaXXaaX................",
"XaX..XaaX...............",
"XX...XaaX...............",
"X.....XaaX..............",
"......XaaX..............",
".......XaaX.............",
".......XaaX.............",
"........XX...aaaaaaaaaaa",
#endif
".............aXXXXXXXXXa",
".............aXXXaaaaXXa",
".............aXXXXaaaXXa",
".............aXXXaaaaXXa",
".............aXXaaaXaXXa",
".............aXXaaXXXXXa",
".............aXXaXXXXXXa",
".............aXXXaXXXXXa",
".............aXXXXXXXXXa",
".............aaaaaaaaaaa"};

QPixmap QGuiApplicationPrivate::getPixmapCursor(Qt::CursorShape cshape)
{
#if defined(Q_WS_X11) || defined(Q_WS_WIN)
    if (!move_cursor) {
        move_cursor = new QPixmap((const char **)move_xpm);
        copy_cursor = new QPixmap((const char **)copy_xpm);
        link_cursor = new QPixmap((const char **)link_xpm);
#ifdef Q_WS_WIN
        ignore_cursor = new QPixmap((const char **)ignore_xpm);
#endif
    }

    switch (cshape) {
    case Qt::DragMoveCursor:
        return *move_cursor;
    case Qt::DragCopyCursor:
        return *copy_cursor;
    case Qt::DragLinkCursor:
        return *link_cursor;
#ifdef Q_WS_WIN
    case Qt::ForbiddenCursor:
        return *ignore_cursor;
#endif
    default:
        break;
    }
#else
    Q_UNUSED(cshape);
#endif
    return QPixmap();
}

QT_END_NAMESPACE