/****************************************************************************+
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**+
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** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (developer.feedback@nokia.com)+
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**+
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** This file is part of the HbCore module of the UI Extensions for Mobile.+
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**+
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** GNU Lesser General Public License Usage+
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** This file may be used under the terms of the GNU Lesser General Public+
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** License version 2.1 as published by the Free Software Foundation and+
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** appearing in the file LICENSE.LGPL included in the packaging of this file.+
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** Please review the following information to ensure the GNU Lesser General+
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** Public License version 2.1 requirements will be met:+
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at developer.feedback@nokia.com.+
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**+
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****************************************************************************/+
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+
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#include "hbvgframeeffect_p.h"+
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#include "hbvgframeeffect_p_p.h"+
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#include <QPainter>+
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#include <QGraphicsItem>+
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+
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/*!+
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 * \class HbVgFrameEffect+
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 *+
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 * \brief This effect makes the bounding rectangle of the source item visible by+
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 * drawing a frame around it. It also serves as a base class for similar+
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 * effects.+
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 *+
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 * \internal+
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 */+
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+
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/*!+
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 * \enum HbVgFrameEffect::Hint+
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 * The hints that can be set via setHint().+
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 */+
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+
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/*!+
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 * \var HbVgFrameEffect::Hint HbVgFrameEffect::ExcludeChildrenHint+
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 *+
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 * When this hint is set, certain calculations will ignore the source item's+
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 * child items and only take the source item's bounding rectangle into+
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 * account. This does not affect the content, i.e. the source will always be+
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 * drawn together with all its children, however the position and size of the+
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 * frame, the reflection, etc. can be different, based on this hint.+
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 */+
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+
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/*!+
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 * \var HbVgFrameEffect::Hint HbVgFrameEffect::DrawSourceHint+
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 *+
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 * Used by HbVgFrameEffect only. Forces the source item to be drawn. By default+
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 * only the frame is shown, set this hint to draw also the content.+
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 */+
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+
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/*!+
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 * \var HbVgFrameEffect::Hint HbVgFrameEffect::ForceFrameHint+
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 *+
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 * Used by derived classes only (not by HbVgFrameEffect itself). Forces the+
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 * frame to be drawn around the source item, just like a plain HbVgFrameEffect+
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 * would do.+
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 */+
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+
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HbVgFrameEffectPrivate::HbVgFrameEffectPrivate()+
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    : color(Qt::black), hints(0)+
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{+
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}+
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+
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/*!+
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 * Returns the device rect, i.e. maps the bounding rectangle to device+
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 * coordinates and performs clipping to the device viewport.+
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 *+
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 * \internal+
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 */+
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QRectF HbVgFrameEffectPrivate::deviceRectForSource(DeviceRectType type,+
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        QPaintDevice *pdev)+
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{+
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    Q_Q(HbVgFrameEffect);+
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    QRectF br = type == IncludeChildren+
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                ? q->sourceBoundingRectForRoot()+
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                : q->sourceItemForRoot()->boundingRect();+
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    QRect result = worldTransform.mapRect(br).toAlignedRect();+
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    if (pdev) {+
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        int left, top, right, bottom;+
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        result.getCoords(&left, &top, &right, &bottom);+
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        if (left < 0) {+
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            result.setX(0);+
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        }+
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        if (top < 0) {+
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            result.setY(0);+
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        }+
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        int deviceWidth = pdev->width();+
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        int deviceHeight = pdev->height();+
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        if (right > deviceWidth - 1) {+
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            result.setRight(deviceWidth - 1);+
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        }+
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        if (bottom > deviceHeight - 1) {+
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            result.setBottom(deviceHeight - 1);+
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        }+
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    }+
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    return result;+
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}+
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+
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HbVgFrameEffect::HbVgFrameEffect(QObject *parent)+
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    : HbVgEffect(*new HbVgFrameEffectPrivate, parent)+
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{+
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}+
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+
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HbVgFrameEffect::HbVgFrameEffect(HbVgFrameEffectPrivate &dd, QObject *parent)+
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    : HbVgEffect(dd, parent)+
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{+
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}+
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+
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HbVgFrameEffect::~HbVgFrameEffect()+
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{+
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}+
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+
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QColor HbVgFrameEffect::color() const+
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{+
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    Q_D(const HbVgFrameEffect);+
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    return d->color;+
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}+
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+
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void HbVgFrameEffect::setColor(const QColor &color)+
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{+
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    Q_D(HbVgFrameEffect);+
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    if (d->color == color) {+
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        return;+
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    }+
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    d->color = color;+
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    updateEffect();+
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    emit colorChanged(color);+
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}+
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+
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/*!+
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 * Enables the given \a hint. Hints are not guaranteed to be taken into account+
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 * in any way.+
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 */+
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void HbVgFrameEffect::setHint(Hints hint)+
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{+
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    Q_D(HbVgFrameEffect);+
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    d->hints |= hint;+
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}+
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+
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QRectF HbVgFrameEffect::boundingRectFor(const QRectF &rect) const+
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{+
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    return rect;+
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}+
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+
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void HbVgFrameEffect::performEffect(QPainter *painter,+
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                                    const QPointF &offset,+
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                                    const QVariant &vgImage,+
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                                    const QSize &vgImageSize)+
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{+
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    Q_UNUSED(offset);+
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    Q_UNUSED(vgImage);+
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    Q_UNUSED(vgImageSize);+
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+
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    Q_D(HbVgFrameEffect);+
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    if (d->hints & DrawSourceHint) {+
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        painter->drawPixmap(offset, d->srcPixmap);+
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    }+
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    painter->setOpacity(d->opacity);+
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    painter->setPen(d->color);+
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    painter->drawRect(d->deviceRectForSource(+
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                          (d->hints & ExcludeChildrenHint)+
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                          ? HbVgFrameEffectPrivate::ExcludeChildren+
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                          : HbVgFrameEffectPrivate::IncludeChildren,+
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                          painter->device()));+
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}+
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