/*

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

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: This widget displays the body of the viewer

 *

 */

#include "univiewerbodywidget.h"

// SYSTEM INCLUDES

#include <QFile>

#include <HbTextItem>

#include <HbMainWindow>

#include <HbIconItem>

// USER INCLUDES

#include "univiewertextitem.h"

#include "univiewerpixmapwidget.h"

#include "univieweraudiowidget.h"

// LOCAL CONSTANTS

const QString IMAGE_MIMETYPE("image");

const QString AUDIO_MIMETYPE("audio");

const QString VIDEO_MIMETYPE("video");

const QString TEXT_MIMETYPE("text");

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

//UniViewerBodyWidget::UniViewerBodyWidget

// @see header file

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

UniViewerBodyWidget::UniViewerBodyWidget(QGraphicsItem *parent) :

    HbWidget(parent), mHasText(false), mHasPixmap(false), mTextItem(0), mSlideCounter(0),

        mPixmapItem(0), mAudioItem(0), mOverlayItem(0)

{

    this->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);

}

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

//UniViewerBodyWidget::~UniViewerBodyWidget

// @see header file

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

UniViewerBodyWidget::~UniViewerBodyWidget()

{

}

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

//UniViewerBodyWidget::setImage

// @see header file

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

void UniViewerBodyWidget::setPixmap(UniMessageInfo *info)

{

    setHasPixmap(true);

    //create image item instance

    if (!mPixmapItem) {

        mPixmapItem = new UniViewerPixmapWidget(this);

        HbStyle::setItemName(mPixmapItem, "pixmap");

    }

    mPixmapItem->hide();

    mPixmapItem->populate(info);

    this->repolish();

}

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

//UniViewerBodyWidget::setAudio

// @see header file

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

void UniViewerBodyWidget::setAudio(UniMessageInfo *info)

{

    if (!mAudioItem) {

        mAudioItem = new UniViewerAudioWidget(this);

        HbStyle::setItemName(mAudioItem, "audioItem");

    }

    mAudioItem->hide();

    mAudioItem->populate(info);

    this->repolish();

}

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

//UniViewerBodyWidget::setVideo

// @see header file

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

void UniViewerBodyWidget::setVideo(UniMessageInfo *info)

{

    setHasPixmap(true);

    //create image item instance

    if (!mPixmapItem) {

       mPixmapItem = new UniViewerPixmapWidget(this);

       HbStyle::setItemName(mPixmapItem, "pixmap");

       connect(mPixmapItem, SIGNAL(setOverlayIcon(QString)), this, SLOT(setOverlayIcon(QString)));

    }

    mPixmapItem->hide();

    mPixmapItem->populate(info);

    this->repolish();

}

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

//UniViewerBodyWidget::setText

// @see header file

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

void UniViewerBodyWidget::setText(QString text)

{

    setHasText(true);

    if (!mTextItem) {

        mTextItem = new UniViewerTextItem(this);

        HbStyle::setItemName(mTextItem, "textItem");

        connect(mTextItem, SIGNAL(sendMessage(const QString&)), this,

            SIGNAL(sendMessage(const QString&)));

    }

    mTextItem->hide();

    text.replace(QChar::ParagraphSeparator, QChar::LineSeparator);

    text.replace('\r', QChar::LineSeparator);

    mTextItem->setText(text);

    this->repolish();

}

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

// UniViewerBodyWidget::setSlideCounter

// @see header file

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

void UniViewerBodyWidget::setSlideCounter(QString &slideCounter)

{

    if (!mSlideCounter) {

        mSlideCounter = new HbTextItem(this);

        HbStyle::setItemName(mSlideCounter, "slideCounter");

    }

    mSlideCounter->hide();

    mSlideCounter->setText(slideCounter);

    this->repolish();

}

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

// UniViewerBodyWidget::setHasText

// @see header file

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

void UniViewerBodyWidget::setHasText(bool text)

{

    mHasText = text;

}

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

// UniViewerBodyWidget::hasText

// @see header file

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

bool UniViewerBodyWidget::hasText()

{

    return mHasText;

}

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

// UniViewerBodyWidget::setHasPixmap

// @see header file

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

void UniViewerBodyWidget::setHasPixmap(bool pixmap)

{

    mHasPixmap = pixmap;

}

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

// UniViewerBodyWidget::hasPixmap

// @see header file

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

bool UniViewerBodyWidget::hasPixmap()

{

    return mHasPixmap;

}

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

// UniViewerBodyWidget::setSlideContents

// @see header file

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

void UniViewerBodyWidget::setSlideContents(UniMessageInfoList objList, QString slideString)

{

    if (!slideString.isEmpty()) {

        setSlideCounter(slideString);

    }

    int count = objList.count();

    for (int a = 0; a < count; ++a) {

        UniMessageInfo* info = objList.at(a);

        QString mimeType = info->mimetype();

        if (mimeType.contains(TEXT_MIMETYPE)) {

            QFile file(info->path());

            if (file.open(QIODevice::ReadOnly)) {

                setText(textContent);

            }

        }

        else if (mimeType.contains(AUDIO_MIMETYPE)) {

            setAudio(info);

        }

        else if (mimeType.contains(VIDEO_MIMETYPE)) {

            setVideo(info);

        }

        else if (mimeType.contains(IMAGE_MIMETYPE)) {

            setPixmap(info);

        }

        delete info;

    }

}

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

// UniViewerBodyWidget :: clearContent

// @see header file

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

void UniViewerBodyWidget::clearContent()

{

    // delete the temp items(pixmap) & clear permanent items(text)

    if (mPixmapItem) {

        mPixmapItem->setParent(NULL);

        delete mPixmapItem;

        mPixmapItem = NULL;

    }

    if (mAudioItem) {

        mAudioItem->setParent(NULL);

        delete mAudioItem;

        mAudioItem = NULL;

    }

    if (mTextItem) {

        mTextItem->setParent(NULL);

        delete mTextItem;

        mTextItem = NULL;

    }

    if (mOverlayItem) {

        mOverlayItem->setParent(NULL);

        delete mOverlayItem;

        mOverlayItem = NULL;

    }

    setHasText(false);

    setHasPixmap(false);

    repolish();

}

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

// UniViewerBodyWidget::setOverlayIcon

// @see header file

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

void UniViewerBodyWidget::setOverlayIcon(const QString &iconName)

{

    if (!mOverlayItem) {

        mOverlayItem = new HbIconItem(this);

        HbStyle::setItemName(mOverlayItem, "overlayItem");

    }

    mOverlayItem->hide();

    mOverlayItem->setIconName(iconName);

    this->repolish();

}

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

//UniViewerBodyWidget::sizeHint

// @see header file

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

QSizeF UniViewerBodyWidget::sizeHint(Qt::SizeHint which, const QSizeF & constraint) const

{

    QSizeF szHint = HbWidget::sizeHint(which, constraint);

    HbMainWindow *mainWindow = this->mainWindow();

    if (!mainWindow) {

        return szHint;

    }

    qreal screenWidth = 0.0;

    qreal screenHeight = 0.0;

    qreal leftMargin = 0.0;

    qreal rightMargin = 0.0;

    qreal chromeHeight = 0.0;

    qreal toolbarHeight = 0.0;

    qreal iconSize = 0.0;

    qreal spacing = 0.0;

    qreal unitSize = HbDeviceProfile::profile(mPixmapItem).unitValue();

    style()->parameter("hb-param-screen-width", screenWidth);

    style()->parameter("hb-param-screen-height", screenHeight);

    style()->parameter("hb-param-margin-gene-left", leftMargin);

    style()->parameter("hb-param-margin-gene-right", rightMargin);

    style()->parameter("hb-param-widget-chrome-height", chromeHeight);

    style()->parameter("hb-param-widget-toolbar-height", toolbarHeight);

    style()->parameter("hb-param-graphic-size-primary-large", iconSize);

    style()->parameter("hb-param-margin-gene-middle-vertical", spacing);

    qreal maxWidth = 0.0;

    qreal maxHeight = 0.0;

    // Calculate max height & max width.

    if (mainWindow->orientation() == Qt::Horizontal) {

        qreal temp;

        temp = screenWidth;

        screenWidth = screenHeight;

        screenHeight = temp;

        if (mPixmapItem && mHasText) {

            maxWidth = (screenWidth / 2) - leftMargin - unitSize;

        }

        else {

            maxWidth = screenWidth - leftMargin - rightMargin;

        }

        maxHeight = screenHeight - chromeHeight - toolbarHeight;

        if (mAudioItem) {

            mAudioItem->setStretched(true);

        }

    }

    else if (mainWindow->orientation() == Qt::Vertical) {

        maxWidth = screenWidth - leftMargin - rightMargin;

        maxHeight = screenHeight - chromeHeight - toolbarHeight;

        if (mAudioItem) {

            mAudioItem->setStretched(false);

        }

    }

    // Slide Counter

    QSizeF slideCounterSize(0, 0);

    if (mSlideCounter) {

        slideCounterSize = mSlideCounter->effectiveSizeHint(which, constraint);

        mSlideCounter->show();

    }

    // Audio Item

    QSizeF audioSize(0, 0);

    if (mAudioItem) {

        audioSize = mAudioItem->effectiveSizeHint(which, constraint);

        mAudioItem->show();

    }

    // Text Item

    QSizeF textSize(0, 0);

    if (mTextItem) {

        textSize = mTextItem->effectiveSizeHint(which, constraint);

        mTextItem->show();

    }

    // Pixmap Item

    QSizeF pixmapSize(0, 0);

    if (mPixmapItem) {

        qreal imageWidth = mPixmapItem->icon().defaultSize().width();

        qreal imageHeight = mPixmapItem->icon().defaultSize().height();

        qreal widthToSet = 0.0;

        qreal heightToSet = 0.0;

        if (imageWidth < iconSize) {

            widthToSet = iconSize;

            heightToSet = iconSize;

        }

        else if (imageWidth <= maxWidth) {

            // resize not needed

            widthToSet = imageWidth;

            heightToSet = qMin(imageHeight, maxHeight);

        }

        else {

            // resize needed, keep aspect-ratio and resize

            widthToSet = maxWidth;

            heightToSet = maxWidth * (imageHeight / imageWidth);

            heightToSet = qMin(heightToSet, maxHeight);

        }

        if (heightToSet == maxHeight) {

            widthToSet = heightToSet * (imageWidth / imageHeight);

        }

        pixmapSize.setHeight(heightToSet);

        pixmapSize.setWidth(widthToSet);

        mPixmapItem->setPreferredSize(pixmapSize);

        mPixmapItem->show();

    }

    if (mOverlayItem) {

        mOverlayItem->show();

    }

    // Calculate the size hint to be returned.

    szHint.setHeight(0);

    if (!slideCounterSize.isNull()) {

        szHint.rheight() += (slideCounterSize.height() + spacing);

    }

    if (!audioSize.isNull()) {

        szHint.rheight() += (audioSize.height() + spacing);

    }

    if (mainWindow->orientation() == Qt::Horizontal) {

        qreal remainingHeight = qMax(pixmapSize.height(), textSize.height());

        if (remainingHeight > 0.0) {

            szHint.rheight() += (remainingHeight + spacing);

        }

    }

    else if (mainWindow->orientation() == Qt::Vertical) {

        if (!pixmapSize.isNull()) {

            szHint.rheight() += (pixmapSize.height() + spacing);

        }

        if (!textSize.isNull()) {

            szHint.rheight() += (textSize.height() + spacing);

        }

    }

    szHint.rheight() = qMax(maxHeight, szHint.height());

    return szHint;

}

// EOF