/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

*

* This program 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, version 2.1 of the License.

*

* This program 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 program.  If not,

* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

*

* Description:

*

*/

#include "qhbstyleanimation.h"

#include <qpixmap.h>

#include <qwidget.h>

#include <qpainter.h>

#include <hbicon.h>

#include <qbitmap.h>

#include "qhbstyle.h"

#include "hbframedrawer.h"

QHbStyleAnimation::QHbStyleAnimation(QWidget* target, QObject *parent) :

    QObject(parent), m_animationIcon(0), m_target(target), m_point(QPoint(0, 0)), m_mask(0)

{

}

QHbStyleAnimation::~QHbStyleAnimation()

{

    delete m_animationIcon;

    delete m_mask;

}

const QWidget* QHbStyleAnimation::target()const

{

    return m_target;

}

QPoint QHbStyleAnimation::point()

{

    return m_point;

}

void QHbStyleAnimation::setPoint(const QPoint& point)

{

    m_point = point;

    m_target->update();

}

void QHbStyleAnimation::createAnimationIcon(QStyle::ControlElement element, Qt::Orientations orientation)

{

    //Create mask

    HbFrameDrawer drawer;

    if (orientation == Qt::Horizontal){

        drawer.setFrameGraphicsName("qtg_fr_progbar_h_mask");

        drawer.setFrameType(HbFrameDrawer::ThreePiecesHorizontal);

    }

    else {

        drawer.setFrameGraphicsName("qtg_fr_progbar_v_mask");

        drawer.setFrameType(HbFrameDrawer::ThreePiecesVertical);

    }

    drawer.setFillWholeRect(true);

    if (m_mask)

        delete m_mask;

    m_mask = new QPixmap(m_target->rect().size());

    m_mask->fill(Qt::transparent);

    QPainter p(m_mask);

    drawer.paint(&p, m_target->rect());

    p.end();

    //Create animated icon

    QString iconName;

    switch (element) {

        case QStyle::CE_ProgressBarContents: {

             if (orientation == Qt::Horizontal)

                iconName = QLatin1String("qtg_graf_progbar_h_wait");

             else

                iconName = QLatin1String("qtg_graf_progbar_v_wait");

            break;

        }

        default:

            break;

    }

    if (!iconName.isNull() && !m_target->rect().isEmpty()) {

        HbIcon* icon = q_check_ptr(new HbIcon(iconName));

        if(orientation == Qt::Horizontal)

            icon->setSize(QSize(icon->width(), m_target->rect().height()));

        else

            icon->setSize(QSize(m_target->rect().width(), icon->height()));

        const qreal rectWidth = m_target->rect().width();

        const qreal iconWidth = icon->width();

        const qreal rectHeight = m_target->rect().height();

        const qreal iconHeight = icon->height();

        if (m_animationIcon)

            delete m_animationIcon;

        const int animationWidth = (orientation == Qt::Horizontal) ?  int(rectWidth + iconWidth) : int(rectWidth);

        const int animationHeight = (orientation == Qt::Horizontal) ?  int(rectHeight) : int(rectHeight + iconHeight);

        m_animationIcon = q_check_ptr(new QPixmap(animationWidth, animationHeight));

        m_animationIcon->fill(Qt::transparent);

        QPainter p(m_animationIcon);

        if (orientation == Qt::Horizontal) {

            if (iconWidth > 0)

                for (qreal i = 0 ; i < (rectWidth + iconWidth); i += iconWidth)

                    icon->paint(&p, QRectF(i, 0, iconWidth, iconHeight), Qt::IgnoreAspectRatio, Qt::AlignCenter, QIcon::Normal, QIcon::On);

        } else {

            if (iconHeight > 0)

                for(qreal i = 0 ; i < (rectHeight + iconHeight) ; i += iconHeight)

                    icon->paint(&p, QRectF(0, i, iconWidth, iconHeight), Qt::IgnoreAspectRatio, Qt::AlignCenter, QIcon::Normal, QIcon::On);

        }

        p.end();

    }

}

void QHbStyleAnimation::paintAnimation(QPainter *painter)

{

    Q_ASSERT(m_animationIcon);

    Q_ASSERT(painter);

    //Take part from animation icon

    QPixmap icon(m_target->rect().size());

    icon.fill(Qt::transparent);

    QPainter p(&icon);

    p.setCompositionMode(QPainter::CompositionMode_SourceOver);

    p.drawPixmap(QPointF(0, 0), *m_mask);

    p.setCompositionMode(QPainter::CompositionMode_SourceIn);

    p.drawPixmap(m_point, *m_animationIcon, QRect(0, 0, m_target->rect().width() + m_point.rx() * -1, m_target->rect().height() + m_point.ry() * -1));

    p.end();

    //paint animation

    painter->drawPixmap(QPointF(0, 0), icon);

}