// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#include <QGraphicsSceneResizeEvent>
#include <QGraphicsGridLayout>
#include <QGraphicsLinearLayout>
#include <QTimer>
#include "listwidget.h"

ListWidget::ListWidget(QGraphicsWidget * parent)
  : GvbWidget(parent),
    m_layout(new QGraphicsLinearLayout(Qt::Vertical)),
    m_listView(new SimpleListView(this))
{
    //listView->setViewport(listView->content());
    //listView->content()->setParentItem(listView);
    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    setContentsMargins(0,0,0,0);
    m_layout->setContentsMargins(0,0,0,0);
    m_listView->setContentsMargins(0,0,0,0);
    m_layout->addItem(m_listView);
    setLayout(m_layout);

    m_scroller.setScrollable(m_listView);
    m_listView->installEventFilter(&m_scroller);
    m_listView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}

ListWidget::~ListWidget()
{

}

void ListWidget::addItem(QGraphicsWidget *item)
{
    m_listView->addItem(item);
}

void ListWidget::insertItem(int index, QGraphicsWidget *item)
{
    m_listView->insertItem(index, item);
}

QGraphicsWidget* ListWidget::takeItem(int row)
{
    return m_listView->takeItem(row);
}

QGraphicsWidget* ListWidget::itemAt(int row)
{
    return m_listView->itemAt(row);
}

/* virtual */
void ListWidget::resizeEvent( QGraphicsSceneResizeEvent * event )
{
    QGraphicsWidget::resizeEvent(event);
}

int ListWidget::itemCount() const
{
    if (m_listView)
        return m_listView->itemCount();
    return 0;
}

ScrollBar* ListWidget::verticalScrollBar() const
{
    if (m_listView)
        return m_listView->verticalScrollBar();
    return 0;
}

bool ListWidget::listItemCaching() const
{
    return m_listView->listItemCaching();
}

void ListWidget::setListItemCaching(bool enable)
{
    m_listView->setListItemCaching(enable);
}

void ListWidget::setTwoColumns(const bool twoColumns)
{
    m_listView->setTwoColumns(twoColumns);
}

bool ListWidget::twoColumns()
{
    return m_listView->twoColumns();
}