/****************************************************************************
**
** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (developer.feedback@nokia.com)
**
** This file is part of the HbCore module of the UI Extensions for Mobile.
**
** GNU Lesser General Public License Usage
** 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 developer.feedback@nokia.com.
**
****************************************************************************/

#include "hbsettingswindow_p.h"
#include "hbmainwindow.h"
#include "hbmainwindow_p.h"
#include "hbinstance_p.h"
#include "hbdeviceprofile.h"
#include "hbdeviceprofilemanager_p.h"
#include "hbapplication.h"
#include "hbtoucharea_p.h"
#include "hbtextitem_p.h"
#include "hbiconitem_p.h"
#include "hbgraphicsscene_p.h"
#include "hbeffectinternal_p.h"

#include <QPointer> //krazy:exclude=qclasses
#include <QComboBox> //krazy:exclude=qclasses
#include <QFormLayout> //krazy:exclude=qclasses
#include <QVBoxLayout> //krazy:exclude=qclasses
#include <QGroupBox> //krazy:exclude=qclasses
#include <QApplication> //krazy:exclude=qclasses
#include <QSettings> //krazy:exclude=qclasses
#include <QPushButton> //krazy:exclude=qclasses
#include <hbevent.h>

#ifdef HB_CSS_INSPECTOR
#include "hbcssinspector_p.h"
#endif

static QString windowName(HbMainWindow *window)
{
    if (!window) {
        return HbSettingsWindow::tr("HbMainWindow(0x0)");
    }
    QString ptr = QString::number((qptrdiff)window, 16);
    QString name = window->metaObject()->className();
    if (!window->objectName().isEmpty()) {
        return HbSettingsWindow::tr("%1(%2, %3)").arg(name).arg(ptr).arg(window->objectName());
    }
    return HbSettingsWindow::tr("%1(%2)").arg(name).arg(ptr);
}

static HbMainWindow *getWindow(int index)
{
    HbMainWindow *window = 0;
    if (index > 0) {
        window = hbInstance->allMainWindows().value(index - 1);
    }
    return window;
}

static QPointer<HbSettingsWindow> settingsWindowGlobal = 0;

HbSettingsWindow *HbSettingsWindow::instance()
{
    if (!settingsWindowGlobal) {
        settingsWindowGlobal = new HbSettingsWindow;
        settingsWindowGlobal->setAttribute(Qt::WA_DeleteOnClose);
    }
    return settingsWindowGlobal;
}

bool HbSettingsWindow::exists()
{
    return !settingsWindowGlobal.isNull();
}

HbSettingsWindow::HbSettingsWindow(QWidget *parent) : QWidget(parent)
{
    mLights = true;
    mAnimation = true;
    mCustomViewPortSize = false;

    windowComboBox = new QComboBox(this);
    windowComboBox->hide();
    resolutionComboBox = new QComboBox(this);
    directionComboBox = new QComboBox(this);
    dragToResizeComboBox = new QComboBox(this);
    mSensorComboBox = new QComboBox(this);
    mGeneralSettingsForSensorsComboBox = new QComboBox(this); //krazy:exclude=qclasses
    mUnsetOrientationButton = new QPushButton(tr("&Unset orientation"), this); //krazy:exclude=qclasses

    mLights = true;
    HbIcon icon("qtg_mono_light");
    mLightsButton = new QPushButton(icon.pixmap(), "", this); //krazy:exclude=qclasses
    mAnimationButton = new QPushButton(tr("&Animation on"), this); //krazy:exclude=qclasses
    mViewPortSizeButton = new QPushButton(tr("&Set custom ViewPortSize"), this); //krazy:exclude=qclasses

    mWindowObscured = false;
    mWindowObscuredButton = new QPushButton(tr("Obscure"), this);

    resolutionComboBox->addItems(HbDeviceProfile::profileNames());
    directionComboBox->addItems(QStringList() << tr("Left to right") << tr("Right to left"));
    dragToResizeComboBox->addItems(QStringList() << tr("Disabled") << tr("Enabled"));
    mSensorComboBox->addItems(QStringList() << tr("Landscape") << tr("Portrait"));
    mGeneralSettingsForSensorsComboBox->addItems(QStringList() << tr("Disabled") << tr("Enabled"));
    refresh();

    connect(windowComboBox, SIGNAL(currentIndexChanged(int)), SLOT(changeWindow(int)));
    connect(resolutionComboBox, SIGNAL(currentIndexChanged(int)), SLOT(changeResolution(int)));
    connect(directionComboBox, SIGNAL(currentIndexChanged(int)), SLOT(changeDirection(int)));
    connect(dragToResizeComboBox, SIGNAL(currentIndexChanged(int)), SLOT(changeDragToResize(int)));
    connect(mSensorComboBox, SIGNAL(currentIndexChanged(int)), SLOT(changeSensorValue(int)));
    connect(mGeneralSettingsForSensorsComboBox, SIGNAL(currentIndexChanged(int)), SLOT(changeGSettingsForSensors(int)));
    connect(mUnsetOrientationButton, SIGNAL(pressed()), SLOT(unsetOrientation()));
    connect(mLightsButton, SIGNAL(pressed()), SLOT(toggleLights()));
    connect(mAnimationButton, SIGNAL(pressed()), SLOT(toggleAnimation()));
    connect(mViewPortSizeButton, SIGNAL(pressed()), SLOT(resizeViewPort()));
    connect(mWindowObscuredButton, SIGNAL(pressed()), SLOT(toggleWindowObscured()));
    QVBoxLayout *boxLayout = new QVBoxLayout(this); //krazy:exclude=qclasses

    QGroupBox *mainGroup = new QGroupBox(this); //krazy:exclude=qclasses
    QFormLayout *layout = new QFormLayout(mainGroup); //krazy:exclude=qclasses
    layout->addRow(tr("&Window"), windowComboBox);
    layout->addRow(tr("&Resolution"), resolutionComboBox);
    layout->addRow(tr("&Direction"), directionComboBox);
    layout->addRow(tr("&Drag to resize"), dragToResizeComboBox);
    layout->addRow(mViewPortSizeButton);
    layout->addRow(mWindowObscuredButton);

    mainGroup->setLayout(layout);
    boxLayout->addWidget(mainGroup);

    QGroupBox *sensorGroup = new QGroupBox(tr("Sensor handling"), this); //krazy:exclude=qclasses
    QFormLayout *sensorLayout = new QFormLayout(sensorGroup); //krazy:exclude=qclasses

    sensorLayout->addRow(tr("&Sensors"), mSensorComboBox);
    sensorLayout->addRow(tr("&GS sensors"), mGeneralSettingsForSensorsComboBox);
    sensorLayout->addRow(mUnsetOrientationButton);
    sensorLayout->addRow(mLightsButton);
    sensorLayout->addRow(mAnimationButton);

    sensorGroup->setLayout(sensorLayout);
    boxLayout->addWidget(sensorGroup);

    QGroupBox *globalGroup = new QGroupBox(tr("Global debug drawing"), this); //krazy:exclude=qclasses
    QFormLayout *globalLayout = new QFormLayout(globalGroup); //krazy:exclude=qclasses

    touchAreaComboBox = new QComboBox(this);
    touchAreaComboBox->addItems(QStringList() << tr("Invisible") << tr("Visible"));
    connect(touchAreaComboBox, SIGNAL(currentIndexChanged(int)), SLOT(changeTouchArea(int)));
    globalLayout->addRow(tr("&Touch areas"), touchAreaComboBox);

    textBoxesComboBox = new QComboBox(this);
    textBoxesComboBox->addItems(QStringList() << tr("Invisible") << tr("Visible"));
    connect(textBoxesComboBox, SIGNAL(currentIndexChanged(int)), SLOT(changeTextBoxes(int)));
    globalLayout->addRow(tr("&Text items"), textBoxesComboBox);

    iconBoxesComboBox = new QComboBox(this);
    iconBoxesComboBox->addItems(QStringList() << tr("Invisible") << tr("Visible"));
    connect(iconBoxesComboBox, SIGNAL(currentIndexChanged(int)), SLOT(changeIconBoxes(int)));
    globalLayout->addRow(tr("&Icon items"), iconBoxesComboBox);

    fpsCounterComboBox = new QComboBox(this);
    fpsCounterComboBox->addItems(QStringList() << tr("Invisible") << tr("Visible"));
    connect(fpsCounterComboBox, SIGNAL(currentIndexChanged(int)), SLOT(changeFpsCounter(int)));
    globalLayout->addRow(tr("&Fps counter"), fpsCounterComboBox);

    globalGroup->setLayout(globalLayout);
    boxLayout->addWidget(globalGroup);

#ifdef HB_CSS_INSPECTOR
    QGroupBox *cssGroup = new QGroupBox(tr("CSS Debugging"), this);
    QHBoxLayout *cssLayout = new QHBoxLayout(cssGroup);

    cssWindowButton = new QPushButton(tr("Show CSS inspector"), this); //krazy:exclude=qclasses
    connect(cssWindowButton, SIGNAL(pressed()), HbCssInspectorWindow::instance(), SLOT(show()));
    cssLayout->addWidget(cssWindowButton);

    cssGroup->setLayout(cssLayout);
    boxLayout->addWidget(cssGroup);
#endif
    initStartUpValues();
}

HbSettingsWindow::~HbSettingsWindow()
{
}

void HbSettingsWindow::refresh()
{
    QString text = windowComboBox->currentText();

    QStringList windows;
    windows << tr("Global");
    foreach(HbMainWindow * window, hbInstance->allMainWindows()) {
        windows << windowName(window);
    }

    windowComboBox->clear();
    windowComboBox->addItems(windows);

    if (!text.isNull()) {
        windowComboBox->setCurrentIndex(windowComboBox->findText(text));
    }
}

void HbSettingsWindow::initStartUpValues()
{
    changeSensorValue(3);
    changeGSettingsForSensors(3);
}

void HbSettingsWindow::changeWindow(int index)
{
    Q_UNUSED(index);
}

void HbSettingsWindow::changeResolution(int index)
{
    QStringList names = HbDeviceProfile::profileNames();
    HbDeviceProfile profile(names.value(index));

    HbMainWindow *window = getWindow(windowComboBox->currentIndex());
    if (!window) {
        // global

        // resize all windows
        QListIterator<HbMainWindow *> iterator(hbInstance->allMainWindows());
        while (iterator.hasNext()) {
            HbMainWindow *window = iterator.next();
            window->resize(profile.logicalSize());
            HbDeviceProfileManager::select(*window, profile);
        }

    } else {
        // window specific
        window->resize(profile.logicalSize());
        HbDeviceProfileManager::select(*window, profile);
    }
}


void HbSettingsWindow::changeDirection(int index)
{
    HbMainWindow *window = getWindow(windowComboBox->currentIndex());
    if (!window) {
        Qt::LayoutDirection dir = HbApplication::layoutDirection();
        HbApplication::setLayoutDirection(dir == Qt::LeftToRight ? Qt::RightToLeft : Qt::LeftToRight);
    } else {
        Qt::LayoutDirection dir = index == 0 ? Qt::LeftToRight : Qt::RightToLeft;
        if (dir != HbApplication::layoutDirection()) {
            window->setLayoutDirection(dir);
        } else {
            window->unsetLayoutDirection();
        }
    }
}

void HbSettingsWindow::changeTouchArea(int index)
{
    HbTouchAreaPrivate::setOutlineDrawing(index > 0);
    foreach(HbMainWindow * window, hbInstance->allMainWindows()) {
        // Force window to redraw
        QEvent event(QEvent::WindowActivate);
        QApplication::sendEvent(window, &event); //krazy:exclude=qclasses
    }
}

void HbSettingsWindow::changeTextBoxes(int index)
{
    HbTextItemPrivate::outlinesEnabled = index > 0;
    foreach(HbMainWindow * window, hbInstance->allMainWindows()) {
        // Force window to redraw
        QEvent event(QEvent::WindowActivate);
        QApplication::sendEvent(window, &event); //krazy:exclude=qclasses
    }
}

void HbSettingsWindow::changeIconBoxes(int index)
{
    HbIconItemPrivate::outlinesEnabled = index > 0;
    foreach(HbMainWindow * window, hbInstance->allMainWindows()) {
        // Force window to redraw
        QEvent event(QEvent::WindowActivate);
        QApplication::sendEvent(window, &event); //krazy:exclude=qclasses
    }
}

void HbSettingsWindow::changeFpsCounter(int index)
{
    HbGraphicsScenePrivate::fpsCounterEnabled = index > 0;
    foreach(HbMainWindow * window, hbInstance->allMainWindows()) {
        // Force window to redraw
        QEvent event(QEvent::WindowActivate);
        QApplication::sendEvent(window, &event); //krazy:exclude=qclasses
    }
}

void HbSettingsWindow::changeDragToResize(int index)
{
    resolutionComboBox->setEnabled(index == 0);
    foreach(HbMainWindow * window, hbInstance->allMainWindows()) {
        HbDeviceProfile profile = HbDeviceProfile::profile(window);
        window->resize(profile.logicalSize());
    }
    HbMainWindowPrivate::dragToResizeEnabled = index > 0;
}

void HbSettingsWindow::changeSensorValue(int index)
{
    if (mSensorComboBox->count() == 3 && (index == 0 || index == 1)) {
        mSensorComboBox->removeItem(2);
    }

    QSettings settings("Nokia", "Hb");
    settings.beginGroup("Sensors");
    switch (index) {
    case 0:
        HbMainWindowOrientation::instance()->mSensorListener->setSensorOrientation(Qt::Horizontal);
        settings.setValue("Orientation", 1);
        break;
    case 1:
        HbMainWindowOrientation::instance()->mSensorListener->setSensorOrientation(Qt::Vertical);
        settings.setValue("Orientation", 2);
        break;
    case 2: //Empty
        break;
    case 3: //Initialize
        if (settings.value("Orientation").toInt() == 1) {
            mSensorComboBox->setCurrentIndex(0);
        } else {
            mSensorComboBox->setCurrentIndex(1);
        }
        break;
    default:
        break;
    }
    settings.endGroup();
}

void HbSettingsWindow::changeGSettingsForSensors(int index)
{
    QSettings settings("Nokia", "Hb");
    settings.beginGroup("Sensors");
    if (index == 3) { //Initialize
        mGeneralSettingsForSensorsComboBox->setCurrentIndex(settings.value("SensorsEnabled").toBool());
    } else {
        settings.setValue("SensorsEnabled", (bool)index);
        HbMainWindowOrientation::instance()->mSensorListener->enableSensors(index, true);
    }
    settings.endGroup();
}

void HbSettingsWindow::unsetOrientation()
{
    foreach(HbMainWindow * window, hbInstance->allMainWindows()) {
        if (!HbMainWindowPrivate::d_ptr(window)->mAutomaticOrientationSwitch) {
            window->unsetOrientation();
        }
    }
}

void HbSettingsWindow::toggleLights()
{
    HbIcon icon("qtg_mono_light");
    QList<HbMainWindow *> mainWindowList = hbInstance->allMainWindows();
    for (int i = 0; i < mainWindowList.count(); ++i) {
        if (mLights) {
            icon.setIconName("qtg_mono_light_off");
            mainWindowList[i]->broadcastEvent(HbEvent::SleepModeEnter);
            mLights = false;
            mainWindowList[i]->setForegroundBrush(QBrush(Qt::black, Qt::Dense1Pattern));
        } else {
            icon.setIconName("qtg_mono_light");
            mainWindowList[i]->broadcastEvent(HbEvent::SleepModeExit);
            mLights = true;
            mainWindowList[i]->setForegroundBrush(Qt::NoBrush);
        }
        mLightsButton->setIcon(icon.pixmap());
    }
}

void HbSettingsWindow::toggleAnimation()
{
    if (mAnimation) {
        HbEffectInternal::setEffectsEnabled(false);
        mAnimationButton->setText(tr("&Animation Off"));
        mAnimation = false;
    } else {
        HbEffectInternal::setEffectsEnabled(true);
        mAnimationButton->setText(tr("&Animation On"));
        mAnimation = true;
    }

}

void HbSettingsWindow::resizeViewPort()
{
    HbMainWindow *window = hbInstance->allMainWindows().at(0);
    if (!mCustomViewPortSize) {
        mViewPortOriginalSize = window->size();
        QSizeF newSize = mViewPortOriginalSize;
        newSize.scale(mViewPortOriginalSize.width(), mViewPortOriginalSize.height() - 150, Qt::IgnoreAspectRatio);
        HbMainWindowPrivate::d_ptr(window)->setViewportSize(newSize);
        mCustomViewPortSize = true;
        mViewPortSizeButton->setText(tr("&Set original ViewPortSize"));
    } else {
        HbMainWindowPrivate::d_ptr(window)->setViewportSize(mViewPortOriginalSize);
        mCustomViewPortSize = false;
        mViewPortSizeButton->setText(tr("&Set custom ViewPortSize"));
    }

}

void HbSettingsWindow::toggleWindowObscured()
{
    if (!mWindowObscured) {
        mWindowObscured = true;
        mWindowObscuredButton->setText(tr("Reveal"));
    } else {
        mWindowObscured = false;
        mWindowObscuredButton->setText(tr("Obscure"));
    }

    QList<HbMainWindow *> mainWindowList = hbInstance->allMainWindows();
    for (int i = 0; i < mainWindowList.count(); ++i) {
        HbEvent *obscureChangedEvent = new HbWindowObscuredChangedEvent(mWindowObscured);
        QCoreApplication::postEvent(mainWindowList[i], obscureChangedEvent);
    }
}