/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the tools applications 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 <qmlview.h>
#include "ui_recopts.h"

#include "qmlviewer.h"
#include <QtDeclarative/qmlcontext.h>
#include <QtDeclarative/qmlengine.h>
#include "qml.h"
#include <private/qperformancelog_p_p.h>
#include <private/qabstractanimation_p.h>
#include <QAbstractAnimation>
#include "deviceskin.h"

#include <QSettings>
#include <QNetworkCookieJar>
#include <QNetworkDiskCache>
#include <QNetworkAccessManager>
#include <QSignalMapper>
#include <QmlComponent>
#include <QWidget>
#include <QApplication>
#include <QDir>
#include <QTextBrowser>
#include <QFile>
#include <QFileInfo>
#include <QVBoxLayout>
#include <QProgressDialog>
#include <QProcess>
#include <QMenuBar>
#include <QMenu>
#include <QAction>
#include <QFileDialog>
#include <QTimer>
#include <QNetworkProxyFactory>
#include <QKeyEvent>
#include "proxysettings.h"

#ifdef GL_SUPPORTED
#include <QGLWidget>
#endif

#include <qfxtester.h>

QT_BEGIN_NAMESPACE


class SizedMenuBar : public QMenuBar
{
    Q_OBJECT
public:
    SizedMenuBar(QWidget *parent, QWidget *referenceWidget)
        : QMenuBar(parent), refWidget(referenceWidget)
    {
    }

    virtual QSize sizeHint() const
    {
        return QSize(refWidget->sizeHint().width(), QMenuBar::sizeHint().height());
    }

private:
    QWidget *refWidget;
};


class PreviewDeviceSkin : public DeviceSkin
{
    Q_OBJECT
public:
    explicit PreviewDeviceSkin(const DeviceSkinParameters &parameters, QWidget *parent);

    void setPreview(QWidget *formWidget);
    void setPreviewAndScale(QWidget *formWidget);

    void setScreenSize(const QSize& size)
    {
        QMatrix fit;
        fit = fit.scale(qreal(size.width())/m_screenSize.width(),
            qreal(size.height())/m_screenSize.height());
        setTransform(fit);
        QApplication::syncX();
    }

    QSize standardScreenSize() const { return m_screenSize; }

    QMenu* menu;

private slots:
    void slotSkinKeyPressEvent(int code, const QString& text, bool autorep);
    void slotSkinKeyReleaseEvent(int code, const QString& text, bool autorep);
    void slotPopupMenu();

private:
    const QSize m_screenSize;
};


PreviewDeviceSkin::PreviewDeviceSkin(const DeviceSkinParameters &parameters, QWidget *parent) :
    DeviceSkin(parameters, parent),
    m_screenSize(parameters.screenSize())
{
    menu = new QMenu(this);
    connect(this, SIGNAL(skinKeyPressEvent(int,QString,bool)),
            this, SLOT(slotSkinKeyPressEvent(int,QString,bool)));
    connect(this, SIGNAL(skinKeyReleaseEvent(int,QString,bool)),
            this, SLOT(slotSkinKeyReleaseEvent(int,QString,bool)));
    connect(this, SIGNAL(popupMenu()), this, SLOT(slotPopupMenu()));
}

void PreviewDeviceSkin::setPreview(QWidget *formWidget)
{
    formWidget->setFixedSize(m_screenSize);
    formWidget->setParent(this, Qt::SubWindow);
    formWidget->setAutoFillBackground(true);
    setView(formWidget);
}

void PreviewDeviceSkin::setPreviewAndScale(QWidget *formWidget)
{
    setScreenSize(formWidget->sizeHint());
    formWidget->setParent(this, Qt::SubWindow);
    formWidget->setAutoFillBackground(true);
    setView(formWidget);
}

void PreviewDeviceSkin::slotSkinKeyPressEvent(int code, const QString& text, bool autorep)
{
    if (QWidget *focusWidget =  QApplication::focusWidget()) {
        QKeyEvent e(QEvent::KeyPress,code,0,text,autorep);
        QApplication::sendEvent(focusWidget, &e);
    }

}

void PreviewDeviceSkin::slotSkinKeyReleaseEvent(int code, const QString& text, bool autorep)
{
    if (QWidget *focusWidget =  QApplication::focusWidget()) {
        QKeyEvent e(QEvent::KeyRelease,code,0,text,autorep);
        QApplication::sendEvent(focusWidget, &e);
    }
}

void PreviewDeviceSkin::slotPopupMenu()
{
    menu->exec(QCursor::pos());
}

static struct { const char *name, *args; } ffmpegprofiles[] = {
    {"Maximum Quality", "-sameq"},
    {"High Quality", "-qmax 2"},
    {"Medium Quality", "-qmax 6"},
    {"Low Quality", "-qmax 16"},
    {"Custom ffmpeg arguments", ""},
    {0,0}
};

class RecordingDialog : public QDialog, public Ui::RecordingOptions {
    Q_OBJECT

public:
    RecordingDialog(QWidget *parent) : QDialog(parent)
    {
        setupUi(this);
        hz->setValidator(new QDoubleValidator(hz));
        for (int i=0; ffmpegprofiles[i].name; ++i) {
            profile->addItem(ffmpegprofiles[i].name);
        }
    }

    void setArguments(QString a)
    {
        int i;
        for (i=0; ffmpegprofiles[i].args[0]; ++i) {
            if (ffmpegprofiles[i].args == a) {
                profile->setCurrentIndex(i);
                args->setText(QLatin1String(ffmpegprofiles[i].args));
                return;
            }
        }
        customargs = a;
        args->setText(a);
        profile->setCurrentIndex(i);
    }

    QString arguments() const
    {
        int i = profile->currentIndex();
        return ffmpegprofiles[i].args[0] ? QLatin1String(ffmpegprofiles[i].args) : customargs;
    }

private slots:
    void pickProfile(int i)
    {
        if (ffmpegprofiles[i].args[0]) {
            args->setText(QLatin1String(ffmpegprofiles[i].args));
        } else {
            args->setText(customargs);
        }
    }

    void storeCustomArgs(QString s)
    {
        setArguments(s);
    }

private:
    QString customargs;
};

class ConfiguredNetworkAccessManager : public QNetworkAccessManager {
public:
    ConfiguredNetworkAccessManager(QObject *parent) : QNetworkAccessManager(parent) { }

    QNetworkReply *createRequest (Operation op, const QNetworkRequest &req, QIODevice * outgoingData)
    {
        QNetworkRequest request = req;
        request.setAttribute(QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::PreferCache);
        request.setAttribute(QNetworkRequest::HttpPipeliningAllowedAttribute, true);
        return QNetworkAccessManager::createRequest(op,request,outgoingData);
    }
};

class PersistentCookieJar : public QNetworkCookieJar {
public:
    PersistentCookieJar(QObject *parent) : QNetworkCookieJar(parent) { load(); }
    ~PersistentCookieJar() { save(); }

private:
    void save()
    {
        QList<QNetworkCookie> list = allCookies();
        QByteArray data;
        foreach (QNetworkCookie cookie, list) {
            if (!cookie.isSessionCookie()) {
                data.append(cookie.toRawForm());
                data.append("\n");
            }
        }
        QSettings settings("Nokia", "QtQmlViewer");
        settings.setValue("Cookies",data);
    }

    void load()
    {
        QSettings settings("Nokia", "QtQmlViewer");
        QByteArray data = settings.value("Cookies").toByteArray();
        setAllCookies(QNetworkCookie::parseCookies(data));
    }
};

QString QmlViewer::getVideoFileName()
{
    QString title = convertAvailable || ffmpegAvailable ? tr("Save Video File") : tr("Save PNG Frames");
    QStringList types;
    if (ffmpegAvailable) types += tr("Common Video files")+QLatin1String(" (*.avi *.mpeg *.mov)");
    if (convertAvailable) types += tr("GIF Animation")+QLatin1String(" (*.gif)");
    types += tr("Individual PNG frames")+QLatin1String(" (*.png)");
    if (ffmpegAvailable) types += tr("All ffmpeg formats (*.*)");
    return QFileDialog::getSaveFileName(this, title, "", types.join(";; "));
}


QmlViewer::QmlViewer(QWidget *parent, Qt::WindowFlags flags)
    : QWidget(parent, flags), frame_stream(0), scaleSkin(true), mb(0), m_scriptOptions(0),
      tester(0)
{
    devicemode = false;
    skin = 0;
    canvas = 0;
    record_autotime = 0;
    record_rate = 50;
    record_args += QLatin1String("-sameq");

    recdlg = new RecordingDialog(this);
    connect(recdlg->pickfile, SIGNAL(clicked()), this, SLOT(pickRecordingFile()));
    senseFfmpeg();
    senseImageMagick();
    if (!ffmpegAvailable)
        recdlg->ffmpegOptions->hide();
    if (!ffmpegAvailable && !convertAvailable)
        recdlg->rateOptions->hide();
    QString warn;
    if (!ffmpegAvailable) {
        if (!convertAvailable)
            warn = tr("ffmpeg and ImageMagick not available - no video output");
        else
            warn = tr("ffmpeg not available - GIF and PNG outputs only");
        recdlg->warning->setText(warn);
    } else {
        recdlg->warning->hide();
    }

    canvas = new QmlView(this);
    canvas->setAttribute(Qt::WA_OpaquePaintEvent);
    canvas->setAttribute(Qt::WA_NoSystemBackground);
    canvas->setContentResizable(!skin || !scaleSkin);
    canvas->engine()->setNetworkAccessManager(new ConfiguredNetworkAccessManager(canvas->engine()));
    canvas->setFocus();

    QObject::connect(canvas, SIGNAL(sceneResized(QSize)), this, SLOT(sceneResized(QSize)));
    QObject::connect(canvas, SIGNAL(initialSize(QSize)), this, SLOT(adjustSizeSlot()));
    QObject::connect(canvas, SIGNAL(errors(QList<QmlError>)), this, SLOT(executeErrors()));

    if (!(flags & Qt::FramelessWindowHint))
        createMenu(menuBar(),0);

    QVBoxLayout *layout = new QVBoxLayout;
    layout->setMargin(0);
    layout->setSpacing(0);
    setLayout(layout);
    if (mb)
        layout->addWidget(mb);
    layout->addWidget(canvas);

    setupProxy();
    canvas->engine()->networkAccessManager()->setCookieJar(new PersistentCookieJar(this));

    connect(&autoStartTimer, SIGNAL(triggered()), this, SLOT(autoStartRecording()));
    connect(&autoStopTimer, SIGNAL(triggered()), this, SLOT(autoStopRecording()));
    connect(&recordTimer, SIGNAL(triggered()), this, SLOT(recordFrame()));
    autoStartTimer.setRunning(false);
    autoStopTimer.setRunning(false);
    recordTimer.setRunning(false);
    recordTimer.setRepeating(true);
}

void QmlViewer::adjustSizeSlot()
{
    resize(sizeHint());
}

QMenuBar *QmlViewer::menuBar() const
{
    if (!mb)
        mb = new SizedMenuBar((QWidget*)this, canvas);

    return mb;
}

void QmlViewer::createMenu(QMenuBar *menu, QMenu *flatmenu)
{
    QObject *parent = flatmenu ? (QObject*)flatmenu : (QObject*)menu;

    QMenu *fileMenu = flatmenu ? flatmenu : menu->addMenu(tr("&File"));

    QAction *openAction = new QAction(tr("&Open..."), parent);
    openAction->setShortcut(QKeySequence("Ctrl+O"));
    connect(openAction, SIGNAL(triggered()), this, SLOT(open()));
    fileMenu->addAction(openAction);

    QAction *reloadAction = new QAction(tr("&Reload"), parent);
    reloadAction->setShortcut(QKeySequence("Ctrl+R"));
    connect(reloadAction, SIGNAL(triggered()), this, SLOT(reload()));
    fileMenu->addAction(reloadAction);

    if (flatmenu) flatmenu->addSeparator();

    QMenu *recordMenu = flatmenu ? flatmenu : menu->addMenu(tr("&Recording"));

    QAction *snapshotAction = new QAction(tr("&Take Snapshot\tF3"), parent);
    connect(snapshotAction, SIGNAL(triggered()), this, SLOT(takeSnapShot()));
    recordMenu->addAction(snapshotAction);

    recordAction = new QAction(tr("Start Recording &Video\tF9"), parent);
    connect(recordAction, SIGNAL(triggered()), this, SLOT(toggleRecordingWithSelection()));
    recordMenu->addAction(recordAction);

    QAction *recordOptions = new QAction(tr("Video &Options..."), parent);
    connect(recordOptions, SIGNAL(triggered()), this, SLOT(chooseRecordingOptions()));

    if (flatmenu)
        flatmenu->addAction(recordOptions);

    if (flatmenu) flatmenu->addSeparator();

    QMenu *skinMenu = flatmenu ? flatmenu->addMenu(tr("&Skin")) : menu->addMenu(tr("&Skin"));

    QActionGroup *skinActions;
    QAction *skinAction;

    skinActions = new QActionGroup(parent);
    skinAction = new QAction(tr("Scale skin"), parent);
    skinAction->setCheckable(true);
    skinAction->setChecked(scaleSkin);
    skinActions->addAction(skinAction);
    skinMenu->addAction(skinAction);
    connect(skinAction, SIGNAL(triggered()), this, SLOT(setScaleSkin()));
    skinAction = new QAction(tr("Resize view"), parent);
    skinAction->setCheckable(true);
    skinAction->setChecked(!scaleSkin);
    skinActions->addAction(skinAction);
    skinMenu->addAction(skinAction);
    connect(skinAction, SIGNAL(triggered()), this, SLOT(setScaleView()));
    skinMenu->addSeparator();

    skinActions = new QActionGroup(parent);
    QSignalMapper *mapper = new QSignalMapper(parent);
    skinAction = new QAction(tr("None"), parent);
    skinAction->setCheckable(true);
    if (currentSkin.isEmpty())
        skinAction->setChecked(true);
    skinActions->addAction(skinAction);
    skinMenu->addAction(skinAction);
    mapper->setMapping(skinAction, "");
    connect(skinAction, SIGNAL(triggered()), mapper, SLOT(map()));
    skinMenu->addSeparator();

    foreach (QString name, builtinSkins()) {
        skinAction = new QAction(name, parent);
        skinActions->addAction(skinAction);
        skinMenu->addAction(skinAction);
        skinAction->setCheckable(true);
        if (":skin/"+name+".skin" == currentSkin)
            skinAction->setChecked(true);
        mapper->setMapping(skinAction, name);
        connect(skinAction, SIGNAL(triggered()), mapper, SLOT(map()));
    }
    connect(mapper, SIGNAL(mapped(QString)), this, SLOT(setSkin(QString)));

    if (flatmenu) flatmenu->addSeparator();

    QMenu *settingsMenu = flatmenu ? flatmenu : menu->addMenu(tr("S&ettings"));
    QAction *proxyAction = new QAction(tr("Http &proxy..."), parent);
    connect(proxyAction, SIGNAL(triggered()), this, SLOT(showProxySettings()));
    settingsMenu->addAction(proxyAction);
    if (!flatmenu)
        settingsMenu->addAction(recordOptions);

    if (flatmenu) flatmenu->addSeparator();

    QMenu *helpMenu = flatmenu ? flatmenu : menu->addMenu(tr("&Help"));
    QAction *aboutAction = new QAction(tr("&About Qt..."), parent);
    connect(aboutAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
    helpMenu->addAction(aboutAction);

    QAction *quitAction = new QAction(tr("&Quit"), parent);
    quitAction->setShortcut(QKeySequence("Ctrl+Q"));
    connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
    fileMenu->addSeparator();
    fileMenu->addAction(quitAction);
    if (menu) {
        menu->setFixedHeight(menu->sizeHint().height());
        menu->setMinimumWidth(10);
    }
}

void QmlViewer::showProxySettings()
{
    ProxySettings settingsDlg (this);

    connect (&settingsDlg, SIGNAL (accepted()), this, SLOT (proxySettingsChanged ()));

    settingsDlg.exec();
}

void QmlViewer::proxySettingsChanged()
{
    setupProxy ();
    reload ();
}

void QmlViewer::setScaleSkin()
{
    if (scaleSkin)
        return;
    scaleSkin = true;
    canvas->setContentResizable(!skin || !scaleSkin);
    if (skin) {
        canvas->setFixedSize(canvas->sizeHint());
        skin->setScreenSize(canvas->sizeHint());
    }
}

void QmlViewer::setScaleView()
{
    if (!scaleSkin)
        return;
    scaleSkin = false;
    if (skin) {
        canvas->setContentResizable(!skin || !scaleSkin);
        canvas->setMinimumSize(QSize(0,0));
        canvas->setMaximumSize(QSize(16777215,16777215));
        canvas->resize(skin->standardScreenSize());
        skin->setScreenSize(skin->standardScreenSize());
    }
}


void QmlViewer::takeSnapShot()
{
    static int snapshotcount = 1;
    QString snapFileName = QString(QLatin1String("snapshot%1.png")).arg(snapshotcount);
    QPixmap::grabWidget(canvas).save(snapFileName);
    qDebug() << "Wrote" << snapFileName;
    ++snapshotcount;
}

void QmlViewer::pickRecordingFile()
{
    QString fileName = getVideoFileName();
    if (!fileName.isEmpty())
        recdlg->file->setText(fileName);
}

void QmlViewer::chooseRecordingOptions()
{
    // File
    recdlg->file->setText(record_file);

    // Size
    recdlg->sizeOriginal->setText(tr("Original (%1x%2)").arg(canvas->width()).arg(canvas->height()));
    if (recdlg->sizeWidth->value()<=1) {
        recdlg->sizeWidth->setValue(canvas->width());
        recdlg->sizeHeight->setValue(canvas->height());
    }

    // Rate
    if (record_rate == 24)
        recdlg->hz24->setChecked(true);
    else if (record_rate == 25)
        recdlg->hz25->setChecked(true);
    else if (record_rate == 50)
        recdlg->hz50->setChecked(true);
    else if (record_rate == 60)
        recdlg->hz60->setChecked(true);
    else {
        recdlg->hzCustom->setChecked(true);
        recdlg->hz->setText(QString::number(record_rate));
    }

    // Profile
    recdlg->setArguments(record_args.join(" "));
    if (recdlg->exec()) {
        // File
        record_file = recdlg->file->text();
        // Size
        if (recdlg->sizeOriginal->isChecked())
            record_outsize = QSize();
        else if (recdlg->size720p->isChecked())
            record_outsize = QSize(1280,720);
        else if (recdlg->sizeVGA->isChecked())
            record_outsize = QSize(640,480);
        else if (recdlg->sizeQVGA->isChecked())
            record_outsize = QSize(320,240);
        else
            record_outsize = QSize(recdlg->sizeWidth->value(),recdlg->sizeHeight->value());
        // Rate
        if (recdlg->hz24->isChecked())
            record_rate = 24;
        else if (recdlg->hz25->isChecked())
            record_rate = 25;
        else if (recdlg->hz50->isChecked())
            record_rate = 50;
        else if (recdlg->hz60->isChecked())
            record_rate = 60;
        else {
            record_rate = recdlg->hz->text().toDouble();
        }
        // Profile
        record_args = recdlg->arguments().split(" ",QString::SkipEmptyParts);
    }
}

void QmlViewer::toggleRecordingWithSelection()
{
    if (!recordTimer.isRunning()) {
        if (record_file.isEmpty()) {
            QString fileName = getVideoFileName();
            if (fileName.isEmpty())
                return;
            if (!fileName.contains(QRegExp(".[^\\/]*$")))
                fileName += ".avi";
            setRecordFile(fileName);
        }
    }
    toggleRecording();
}

void QmlViewer::toggleRecording()
{
    if (record_file.isEmpty()) {
        toggleRecordingWithSelection();
        return;
    }
    bool recording = !recordTimer.isRunning();
    recordAction->setText(recording ? tr("&Stop Recording Video\tF9") : tr("&Start Recording Video\tF9"));
    setRecording(recording);
}

void QmlViewer::addLibraryPath(const QString& lib)
{
    canvas->engine()->addImportPath(lib);
}

void QmlViewer::reload()
{
    openQml(currentFileOrUrl);
}

void QmlViewer::open()
{
    QString cur = canvas->url().toLocalFile();
    QString fileName = QFileDialog::getOpenFileName(this, tr("Open QML file"), cur, tr("QML Files (*.qml)"));
    if (!fileName.isEmpty()) {
        QFileInfo fi(fileName);
        openQml(fi.absoluteFilePath());
    }
}

void QmlViewer::executeErrors()
{
    if (tester) tester->executefailure();
}

void QmlViewer::openQml(const QString& file_or_url)
{
    currentFileOrUrl = file_or_url;

    QUrl url;
    QFileInfo fi(file_or_url);
    if (fi.exists())
        url = QUrl::fromLocalFile(fi.absoluteFilePath());
    else
        url = QUrl(file_or_url);
    setWindowTitle(tr("%1 - Qt Declarative UI Viewer").arg(file_or_url));

    if (!m_script.isEmpty()) 
        tester = new QmlGraphicsTester(m_script, m_scriptOptions, canvas);

    canvas->reset();

    QString fileName = url.toLocalFile();
    if (!fileName.isEmpty()) {
        QFileInfo fi(fileName);
        if (fi.exists()) {
            if (fi.suffix().toLower() != QLatin1String("qml")) {
                qWarning() << "qmlviewer cannot open non-QML file" << fileName;
                return;
            }

            QmlContext *ctxt = canvas->rootContext();
            QDir dir(fi.path()+"/dummydata", "*.qml");
            QStringList list = dir.entryList();
            for (int i = 0; i < list.size(); ++i) {
                QString qml = list.at(i);
                QFile f(dir.filePath(qml));
                f.open(QIODevice::ReadOnly);
                QByteArray data = f.readAll();
                QmlComponent comp(canvas->engine());
                comp.setData(data, QUrl());
                QObject *dummyData = comp.create();

                if(comp.isError()) {
                    QList<QmlError> errors = comp.errors();
                    foreach (const QmlError &error, errors) {
                        qWarning() << error;
                    }
                    if (tester) tester->executefailure();
                }

                if (dummyData) {
                    qWarning() << "Loaded dummy data:" << dir.filePath(qml);
                    qml.truncate(qml.length()-4);
                    ctxt->setContextProperty(qml, dummyData);
                    dummyData->setParent(this);
                }
            }
        } else {
            qWarning() << "qmlviewer cannot find file:" << fileName;
            return;
        }
    }

    canvas->setUrl(url);

    QTime t;
    t.start();
    canvas->execute();
    qWarning() << "Wall startup time:" << t.elapsed();

    if (!skin) {
        canvas->updateGeometry();
        if (mb)
            mb->updateGeometry();
        resize(sizeHint());
    } else {
        if (scaleSkin)
            canvas->resize(canvas->sizeHint());
        else {
            canvas->setFixedSize(skin->standardScreenSize());
            canvas->resize(skin->standardScreenSize());
        }
    }

#ifdef QTOPIA
    show();
#endif
}

QStringList QmlViewer::builtinSkins() const
{
    QDir dir(":/skins/","*.skin");
    const QFileInfoList l = dir.entryInfoList();
    QStringList r;
    for (QFileInfoList::const_iterator it = l.begin(); it != l.end(); ++it) {
        r += (*it).baseName();
    }
    return r;
}

void QmlViewer::setSkin(const QString& skinDirOrName)
{
    QString skinDirectory = skinDirOrName;

    if (!QDir(skinDirOrName).exists() && QDir(":/skins/"+skinDirOrName+".skin").exists())
        skinDirectory = ":/skins/"+skinDirOrName+".skin";

    if (currentSkin == skinDirectory)
        return;

    currentSkin = skinDirectory;

    // XXX QWidget::setMask does not handle changes well, and we may
    // XXX have been signalled from an item in a menu we're replacing,
    // XXX hence some rather convoluted resetting here...

    QString err;
    if (skin) {
        skin->hide();
        skin->deleteLater();
    }

    canvas->setContentResizable(!skin || !scaleSkin);

    DeviceSkinParameters parameters;
    if (!skinDirectory.isEmpty() && parameters.read(skinDirectory,DeviceSkinParameters::ReadAll,&err)) {
        layout()->setEnabled(false);
        //setMenuBar(0);
        if (mb)
            mb->hide();
        if (!err.isEmpty())
            qWarning() << err;
        skin = new PreviewDeviceSkin(parameters,this);
        canvas->resize(canvas->sizeHint());
        if (scaleSkin)
            skin->setPreviewAndScale(canvas);
        else
            skin->setPreview(canvas);
        createMenu(0,skin->menu);
        skin->show();
    } else {
        skin = 0;
        clearMask();
        menuBar()->clear();
        canvas->setParent(this, Qt::SubWindow);
        createMenu(menuBar(),0);
        mb->show();
        setMinimumSize(QSize(0,0));
        setMaximumSize(QSize(16777215,16777215));
        canvas->setMinimumSize(QSize(0,0));
        canvas->setMaximumSize(QSize(16777215,16777215));
        QRect g = geometry();
        g.setSize(sizeHint());
        setParent(0,windowFlags()); // recreate
        canvas->move(0,menuBar()->sizeHint().height());
        setGeometry(g);
        layout()->setEnabled(true);
        show();
    }
    canvas->show();
}

void QmlViewer::setAutoRecord(int from, int to)
{
    if (from==0) from=1; // ensure resized
    record_autotime = to-from;
    autoStartTimer.setInterval(from);
    autoStartTimer.setRunning(true);
}

void QmlViewer::setRecordArgs(const QStringList& a)
{
    record_args = a;
}

void QmlViewer::setRecordFile(const QString& f)
{
    record_file = f;
}

void QmlViewer::setRecordRate(int fps)
{
    record_rate = fps;
}

void QmlViewer::sceneResized(QSize size)
{
    if (size.width() > 0 && size.height() > 0) {
        if (skin && scaleSkin)
            skin->setScreenSize(size);
    }
}

void QmlViewer::keyPressEvent(QKeyEvent *event)
{
    if (event->key() == Qt::Key_0 && devicemode)
        exit(0);
    else if (event->key() == Qt::Key_F1 || (event->key() == Qt::Key_1 && devicemode)) {
        qDebug() << "F1 - help\n"
                 << "F2 - save test script\n"
                 << "F3 - take PNG snapshot\n"
                 << "F4 - show items and state\n"
                 << "F5 - reload QML\n"
                 << "F6 - show object tree\n"
                 << "F7 - show timing\n"
                 << "F8 - show performance (if available)\n"
                 << "F9 - toggle video recording\n"
                 << "device keys: 0=quit, 1..8=F1..F8"
                ;
    } else if (event->key() == Qt::Key_F2 || (event->key() == Qt::Key_2 && devicemode)) {
        if (tester && m_scriptOptions & Record)
            tester->save();
    } else if (event->key() == Qt::Key_F3 || (event->key() == Qt::Key_3 && devicemode)) {
        takeSnapShot();
    } else if (event->key() == Qt::Key_F5 || (event->key() == Qt::Key_5 && devicemode)) {
        reload();
    } else if (event->key() == Qt::Key_F8 || (event->key() == Qt::Key_8 && devicemode)) {
        QPerformanceLog::displayData();
        QPerformanceLog::clear();
    } else if (event->key() == Qt::Key_F9 || (event->key() == Qt::Key_9 && devicemode)) {
        toggleRecording();
    }

    QWidget::keyPressEvent(event);
}

void QmlViewer::senseImageMagick()
{
    QProcess proc;
    proc.start("convert", QStringList() << "-h");
    proc.waitForFinished(2000);
    QString help = proc.readAllStandardOutput();
    convertAvailable = help.contains("ImageMagick");
}

void QmlViewer::senseFfmpeg()
{
    QProcess proc;
    proc.start("ffmpeg", QStringList() << "-h");
    proc.waitForFinished(2000);
    QString ffmpegHelp = proc.readAllStandardOutput();
    ffmpegAvailable = ffmpegHelp.contains("-s ");
    ffmpegHelp = tr("Video recording uses ffmpeg:")+"\n\n"+ffmpegHelp;

    QDialog *d = new QDialog(recdlg);
    QVBoxLayout *l = new QVBoxLayout(d);
    QTextBrowser *b = new QTextBrowser(d);
    QFont f = b->font();
    f.setFamily("courier");
    b->setFont(f);
    b->setText(ffmpegHelp);
    l->addWidget(b);
    d->setLayout(l);
    ffmpegHelpWindow = d;
    connect(recdlg->ffmpegHelp,SIGNAL(clicked()), ffmpegHelpWindow, SLOT(show()));
}

void QmlViewer::setRecording(bool on)
{
    if (on == recordTimer.isRunning())
        return;

    int period = int(1000/record_rate+0.5);
    QUnifiedTimer::instance()->setTimingInterval(on ? period:16);
    QUnifiedTimer::instance()->setConsistentTiming(on);
    if (on) {
        canvas->setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
        recordTimer.setInterval(period);
        recordTimer.setRunning(true);
        frame_fmt = record_file.right(4).toLower();
        frame = QImage(canvas->width(),canvas->height(),QImage::Format_RGB32);
        if (frame_fmt != ".png" && (!convertAvailable || frame_fmt != ".gif")) {
            // Stream video to ffmpeg

            QProcess *proc = new QProcess(this);
            connect(proc, SIGNAL(finished(int)), this, SLOT(ffmpegFinished(int)));
            frame_stream = proc;

            QStringList args;
            args << "-y";
            args << "-r" << QString::number(record_rate);
            args << "-f" << "rawvideo";
            args << "-pix_fmt" << (frame_fmt == ".gif" ? "rgb24" : "rgb32");
            args << "-s" << QString("%1x%2").arg(canvas->width()).arg(canvas->height());
            args << "-i" << "-";
            if (record_outsize.isValid()) {
                args << "-s" << QString("%1x%2").arg(record_outsize.width()).arg(record_outsize.height());
                args << "-aspect" << QString::number(double(canvas->width())/canvas->height());
            }
            args += record_args;
            args << record_file;
            proc->start("ffmpeg",args);

        } else {
            // Store frames, save to GIF/PNG
            frame_stream = 0;
        }
    } else {
        canvas->setViewportUpdateMode(QGraphicsView::MinimalViewportUpdate);
        recordTimer.setRunning(false);
        if (frame_stream) {
            qDebug() << "Saving video...";
            frame_stream->close();
            qDebug() << "Wrote" << record_file;
        } else {
            QProgressDialog progress(tr("Saving frames..."), tr("Cancel"), 0, frames.count()+10, this);
            progress.setWindowModality(Qt::WindowModal);

            int frame=0;
            QStringList inputs;
            qDebug() << "Saving frames...";

            QString framename;
            bool png_output = false;
            if (record_file.right(4).toLower()==".png") {
                if (record_file.contains('%'))
                    framename = record_file;
                else
                    framename = record_file.left(record_file.length()-4)+"%04d"+record_file.right(4);
                png_output = true;
            } else {
                framename = "tmp-frame%04d.png";
                png_output = false;
            }
            foreach (QImage* img, frames) {
                progress.setValue(progress.value()+1);
                if (progress.wasCanceled())
                    break;
                QString name;
                name.sprintf(framename.toLocal8Bit(),frame++);
                if (record_outsize.isValid())
                    *img = img->scaled(record_outsize,Qt::IgnoreAspectRatio,Qt::SmoothTransformation);
                if (record_dither=="ordered")
                    img->convertToFormat(QImage::Format_Indexed8,Qt::PreferDither|Qt::OrderedDither).save(name);
                else if (record_dither=="threshold")
                    img->convertToFormat(QImage::Format_Indexed8,Qt::PreferDither|Qt::ThresholdDither).save(name);
                else if (record_dither=="floyd")
                    img->convertToFormat(QImage::Format_Indexed8,Qt::PreferDither).save(name);
                else
                    img->save(name);
                inputs << name;
                delete img;
            }

            if (!progress.wasCanceled()) {
                if (png_output) {
                    framename.replace(QRegExp("%\\d*."),"*");
                    qDebug() << "Wrote frames" << framename;
                    inputs.clear(); // don't remove them
                } else {
                    // ImageMagick and gifsicle for GIF encoding
                    progress.setLabelText(tr("Converting frames to GIF file..."));
                    QStringList args;
                    args << "-delay" << QString::number(period/10);
                    args << inputs;
                    args << record_file;
                    qDebug() << "Converting..." << record_file << "(this may take a while)";
                    if (0!=QProcess::execute("convert", args)) {
                        qWarning() << "Cannot run ImageMagick 'convert' - recorded frames not converted";
                        inputs.clear(); // don't remove them
                        qDebug() << "Wrote frames tmp-frame*.png";
                    } else {
                        if (record_file.right(4).toLower() == ".gif") {
                            qDebug() << "Compressing..." << record_file;
                            if (0!=QProcess::execute("gifsicle", QStringList() << "-O2" << "-o" << record_file << record_file))
                                qWarning() << "Cannot run 'gifsicle' - not compressed";
                        }
                        qDebug() << "Wrote" << record_file;
                    }
                }
            }

            progress.setValue(progress.maximum()-1);
            foreach (QString name, inputs)
                QFile::remove(name);

            frames.clear();
        }
    }
    qDebug() << "Recording: " << (recordTimer.isRunning()?"ON":"OFF");
}

void QmlViewer::ffmpegFinished(int code)
{
    qDebug() << "ffmpeg returned" << code << frame_stream->readAllStandardError();
}

void QmlViewer::autoStartRecording()
{
    setRecording(true);
    autoStopTimer.setInterval(record_autotime);
    autoStopTimer.setRunning(true);
}

void QmlViewer::autoStopRecording()
{
    setRecording(false);
}

void QmlViewer::recordFrame()
{
    canvas->QWidget::render(&frame);
    if (frame_stream) {
        if (frame_fmt == ".gif") {
            // ffmpeg can't do 32bpp with gif
            QImage rgb24 = frame.convertToFormat(QImage::Format_RGB888);
            frame_stream->write((char*)rgb24.bits(),rgb24.numBytes());
        } else {
            frame_stream->write((char*)frame.bits(),frame.numBytes());
        }
    } else {
        frames.append(new QImage(frame));
    }
}

void QmlViewer::setDeviceKeys(bool on)
{
    devicemode = on;
}

void QmlViewer::setupProxy()
{
    class SystemProxyFactory : public QNetworkProxyFactory
    {
    public:
        virtual QList<QNetworkProxy> queryProxy(const QNetworkProxyQuery &query)
        {
            QString protocolTag = query.protocolTag();
            if (httpProxyInUse && (protocolTag == "http" || protocolTag == "https")) {
                QList<QNetworkProxy> ret;
                ret << httpProxy;
                return ret;
            }
            return QNetworkProxyFactory::systemProxyForQuery(query);
        }
        void setHttpProxy (QNetworkProxy proxy)
        {
            httpProxy = proxy;
            httpProxyInUse = true;
        }
        void unsetHttpProxy ()
        {
            httpProxyInUse = false;
        }
    private:
        bool httpProxyInUse;
        QNetworkProxy httpProxy;
    };

    QNetworkAccessManager * nam = canvas->engine()->networkAccessManager();
    SystemProxyFactory *proxyFactory = new SystemProxyFactory;
    if (ProxySettings::httpProxyInUse())
        proxyFactory->setHttpProxy(ProxySettings::httpProxy());
    else
        proxyFactory->unsetHttpProxy();
    nam->setProxyFactory(proxyFactory);
}

void QmlViewer::setNetworkCacheSize(int size)
{
    QNetworkAccessManager * nam = canvas->engine()->networkAccessManager();
    QNetworkDiskCache *cache = qobject_cast<QNetworkDiskCache*>(nam->cache());
    if (!cache) {
        if (size==0)
            return;
        cache = new QNetworkDiskCache;
        cache->setCacheDirectory(QDir::tempPath()+QLatin1String("/qml-duiviewer-network-cache"));
        nam->setCache(cache);
    }
    if (size == cache->maximumCacheSize())
        return;
    if (size>0) {
        // Setup a caching network manager
        cache->setMaximumCacheSize(size);
    } else {
        nam->setCache(0);
    }
}

void QmlViewer::setUseGL(bool useGL)
{
#ifdef GL_SUPPORTED
    if (useGL) {
        QGLFormat format = QGLFormat::defaultFormat();
        format.setSampleBuffers(false);

        QGLWidget *glWidget = new QGLWidget(format);
        glWidget->setAutoFillBackground(false);
        canvas->setViewport(glWidget);
    }
#endif
}
QT_END_NAMESPACE

#include "qmlviewer.moc"