/*  This file is part of the KDE project.

Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

This library is free software: you can redistribute it and/or modify

it under the terms of the GNU Lesser General Public License as published by

the Free Software Foundation, either version 2.1 or 3 of the License.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License

along with this library.  If not, see <http://www.gnu.org/licenses/>.

*/

#include <QtCore/private/qcore_symbian_p.h> // for qt_TRect2QRect

#include <QtGui/private/qwidget_p.h> // to access QWExtra

#include <QResizeEvent>

#include <QMoveEvent>

#include <coemain.h> // for CCoeEnv

#include "ancestormovemonitor.h"

#include "utils.h"

#include "videooutput_dsa.h"

QT_BEGIN_NAMESPACE

using namespace Phonon;

using namespace Phonon::MMF;

DsaVideoOutput::DsaVideoOutput(QWidget *parent)

    :   AbstractVideoOutput(parent)

    ,   m_ancestorMoveMonitor(0)

{

    TRACE_CONTEXT(DsaVideoOutput::DsaVideoOutput, EVideoInternal);

    TRACE_ENTRY("parent 0x%08x", parent);

    setPalette(QPalette(Qt::black));

    setAttribute(Qt::WA_OpaquePaintEvent, true);

    setAttribute(Qt::WA_NoSystemBackground, true);

    setAutoFillBackground(false);

    qt_widget_private(this)->extraData()->nativePaintMode = QWExtra::ZeroFill;

    qt_widget_private(this)->extraData()->receiveNativePaintEvents = true;

    getVideoWindowScreenRect();

    dump();

    TRACE_EXIT_0();

}

DsaVideoOutput::~DsaVideoOutput()

{

    TRACE_CONTEXT(DsaVideoOutput::~DsaVideoOutput, EVideoInternal);

    TRACE_ENTRY_0();

    m_ancestorMoveMonitor->unRegisterTarget(this);

    TRACE_EXIT_0();

}

//-----------------------------------------------------------------------------

// Public functions

//-----------------------------------------------------------------------------

void MMF::DsaVideoOutput::setAncestorMoveMonitor(AncestorMoveMonitor *monitor)

{

    m_ancestorMoveMonitor = monitor;

    registerForAncestorMoved();

}

const QRect& MMF::DsaVideoOutput::videoWindowScreenRect() const

{

    return m_videoWindowScreenRect;

}

void MMF::DsaVideoOutput::ancestorMoved()

{

    TRACE_CONTEXT(DsaVideoOutput::ancestorMoved, EVideoInternal);

    TRACE_ENTRY_0();

    RWindowBase *const window = videoWindow();

    if (window) {

        const TPoint newWindowPosSymbian = window->AbsPosition();

        const QPoint newWindowPos(newWindowPosSymbian.iX, newWindowPosSymbian.iY);

        if (newWindowPos != m_videoWindowScreenRect.topLeft()) {

            m_videoWindowScreenRect.moveTo(newWindowPos);

            emit videoWindowScreenRectChanged();

        }

    }

    TRACE_EXIT_0();

}

void MMF::DsaVideoOutput::beginNativePaintEvent(const QRect & /*controlRect*/)

{

    emit beginVideoWindowNativePaint();

}

void MMF::DsaVideoOutput::endNativePaintEvent(const QRect & /*controlRect*/)

{

    // Ensure that draw ops are executed into the WSERV output framebuffer

    CCoeEnv::Static()->WsSession().Flush();

    emit endVideoWindowNativePaint();

}

//-----------------------------------------------------------------------------

// Private functions

//-----------------------------------------------------------------------------

void MMF::DsaVideoOutput::getVideoWindowScreenRect()

{

    RWindowBase *const window = videoWindow();

    if (window)

        m_videoWindowScreenRect =

            qt_TRect2QRect(TRect(window->AbsPosition(), window->Size()));

}

void MMF::DsaVideoOutput::registerForAncestorMoved()

{

    m_ancestorMoveMonitor->registerTarget(this);

}

void MMF::DsaVideoOutput::resizeEvent(QResizeEvent *event)

{

    TRACE_CONTEXT(DsaVideoOutput::resizeEvent, EVideoInternal);

    TRACE("%d %d -> %d %d",

          event->oldSize().width(), event->oldSize().height(),

          event->size().width(), event->size().height());

    if (event->size() != event->oldSize()) {

        m_videoWindowScreenRect.setSize(event->size());

        emit videoWindowScreenRectChanged();

    }

}

void MMF::DsaVideoOutput::moveEvent(QMoveEvent *event)

{

    TRACE_CONTEXT(DsaVideoOutput::moveEvent, EVideoInternal);

    TRACE("%d %d -> %d %d",

          event->oldPos().x(), event->oldPos().y(),

          event->pos().x(), event->pos().y());

    if (event->pos() != event->oldPos()) {

        m_videoWindowScreenRect.moveTo(event->pos());

        emit videoWindowScreenRectChanged();

    }

}

bool MMF::DsaVideoOutput::event(QEvent *event)

{

    TRACE_CONTEXT(DsaVideoOutput::event, EVideoInternal);

    if (event->type() == QEvent::WinIdChange) {

        TRACE_0("WinIdChange");

        getVideoWindowScreenRect();

        emit videoWindowChanged();

        return true;

    } else if (event->type() == QEvent::ParentChange) {

        // Tell ancestor move monitor to update ancestor list for this widget

        registerForAncestorMoved();

        return true;

    } else {

        return QWidget::event(event);

    }

}

QT_END_NAMESPACE