/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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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 "livesingleselectionmanipulator.h"

#include "qdeclarativeviewinspector_p.h"

#include <QtDebug>

namespace QmlJSDebugger {
namespace QtQuick1 {

LiveSingleSelectionManipulator::LiveSingleSelectionManipulator(QDeclarativeViewInspector *editorView)
    : m_editorView(editorView),
      m_isActive(false)
{
}


void LiveSingleSelectionManipulator::begin(const QPointF &beginPoint)
{
    m_beginPoint = beginPoint;
    m_isActive = true;
    m_oldSelectionList = QDeclarativeViewInspectorPrivate::get(m_editorView)->selectedItems();
}

void LiveSingleSelectionManipulator::update(const QPointF &/*updatePoint*/)
{
    m_oldSelectionList.clear();
}

void LiveSingleSelectionManipulator::clear()
{
    m_beginPoint = QPointF();
    m_oldSelectionList.clear();
}


void LiveSingleSelectionManipulator::end(const QPointF &/*updatePoint*/)
{
    m_oldSelectionList.clear();
    m_isActive = false;
}

void LiveSingleSelectionManipulator::select(SelectionType selectionType,
                                            const QList<QGraphicsItem*> &items,
                                            bool /*selectOnlyContentItems*/)
{
    QGraphicsItem *selectedItem = 0;

    foreach (QGraphicsItem* item, items)
    {
        //FormEditorItem *formEditorItem = FormEditorItem::fromQGraphicsItem(item);
        if (item
            /*&& !formEditorItem->qmlItemNode().isRootNode()
               && (formEditorItem->qmlItemNode().hasShowContent() || !selectOnlyContentItems)*/)
        {
            selectedItem = item;
            break;
        }
    }

    QList<QGraphicsItem*> resultList;

    switch (selectionType) {
    case AddToSelection: {
        resultList.append(m_oldSelectionList);
        if (selectedItem && !m_oldSelectionList.contains(selectedItem))
            resultList.append(selectedItem);
    }
        break;
    case ReplaceSelection: {
        if (selectedItem)
            resultList.append(selectedItem);
    }
        break;
    case RemoveFromSelection: {
        resultList.append(m_oldSelectionList);
        if (selectedItem)
            resultList.removeAll(selectedItem);
    }
        break;
    case InvertSelection: {
        if (selectedItem
                && !m_oldSelectionList.contains(selectedItem))
        {
            resultList.append(selectedItem);
        }
    }
    }

    m_editorView->setSelectedItems(resultList);
}

void LiveSingleSelectionManipulator::select(SelectionType selectionType, bool selectOnlyContentItems)
{
    QDeclarativeViewInspectorPrivate *inspectorPrivate =
            QDeclarativeViewInspectorPrivate::get(m_editorView);
    QList<QGraphicsItem*> itemList = inspectorPrivate->selectableItems(m_beginPoint);
    select(selectionType, itemList, selectOnlyContentItems);
}


bool LiveSingleSelectionManipulator::isActive() const
{
    return m_isActive;
}

QPointF LiveSingleSelectionManipulator::beginPoint() const
{
    return m_beginPoint;
}

} // namespace QtQuick1
} // namespace QmlJSDebugger
