/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
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** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
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** accordance with the commercial license agreement provided with the
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** Alternatively, this file may be used under the terms of the GNU Lesser
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****************************************************************************/

#include "liveselectionindicator.h"

#include "qdeclarativeviewinspector_p.h"
#include "qmlinspectorconstants.h"

#include <QtWidgets/QGraphicsRectItem>
#include <QtWidgets/QGraphicsObject>
#include <QtWidgets/QGraphicsScene>
#include <QtGui/QPen>

namespace QmlJSDebugger {
namespace QtQuick1 {

LiveSelectionIndicator::LiveSelectionIndicator(QDeclarativeViewInspector *viewInspector,
                                               QGraphicsObject *layerItem)
    : m_layerItem(layerItem)
    , m_view(viewInspector)
{
}

LiveSelectionIndicator::~LiveSelectionIndicator()
{
    clear();
}

void LiveSelectionIndicator::show()
{
    foreach (QGraphicsRectItem *item, m_indicatorShapeHash)
        item->show();
}

void LiveSelectionIndicator::hide()
{
    foreach (QGraphicsRectItem *item, m_indicatorShapeHash)
        item->hide();
}

void LiveSelectionIndicator::clear()
{
    if (!m_layerItem.isNull()) {
        QGraphicsScene *scene = m_layerItem.data()->scene();
        foreach (QGraphicsRectItem *item, m_indicatorShapeHash) {
            scene->removeItem(item);
            delete item;
        }
    }

    m_indicatorShapeHash.clear();

}

void LiveSelectionIndicator::setItems(const QList<QPointer<QGraphicsObject> > &itemList)
{
    clear();

    foreach (const QPointer<QGraphicsObject> &object, itemList) {
        if (object.isNull())
            continue;

        QGraphicsItem *item = object.data();

        if (!m_indicatorShapeHash.contains(item)) {
            QGraphicsRectItem *selectionIndicator = new QGraphicsRectItem(m_layerItem.data());
            m_indicatorShapeHash.insert(item, selectionIndicator);

            const QRectF boundingRect = m_view->adjustToScreenBoundaries(item->mapRectToScene(item->boundingRect()));
            const QRectF boundingRectInLayerItemSpace = m_layerItem.data()->mapRectFromScene(boundingRect);

            selectionIndicator->setData(Constants::EditorItemDataKey, true);
            selectionIndicator->setFlag(QGraphicsItem::ItemIsSelectable, false);
            selectionIndicator->setRect(boundingRectInLayerItemSpace);
            selectionIndicator->setPen(QColor(108, 141, 221));
        }
    }
}

} // namespace QtQuick1
} // namespace QmlJSDebugger

