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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QDebug>
#include <QGraphicsLinearLayout>
#include <QFont>
#include <QElapsedTimer>
#include "simplelist.h"
static const int MinItemWidth = 276;
SimpleList::SimpleList(QGraphicsWidget *parent)
: GvbWidget(parent),
m_list(new ListWidget(this))
{
QGraphicsLinearLayout *layout = new QGraphicsLinearLayout();
layout->setContentsMargins(0,0,0,0);
setContentsMargins(0,0,0,0);
setLayout(layout);
layout->addItem(m_list);
setObjectName("SimpleList");
}
/*virtual*/
SimpleList::~SimpleList()
{
}
void SimpleList::addItem(ListItem *item)
{
item->setMinimumWidth(MinItemWidth);
m_list->addItem(item);
}
void SimpleList::insertItem(int index, ListItem *item)
{
item->setMinimumWidth(MinItemWidth);
m_list->insertItem(index, item);
}
ListItem* SimpleList::takeItem(int row)
{
return static_cast<ListItem*>(m_list->takeItem(row));
}
ListItem* SimpleList::itemAt(int row)
{
return static_cast<ListItem*>(m_list->itemAt(row));
}
int SimpleList::itemCount() const
{
if (m_list)
return m_list->itemCount();
return 0;
}
ScrollBar* SimpleList::verticalScrollBar() const
{
if (m_list)
return m_list->verticalScrollBar();
return 0;
}
bool SimpleList::listItemCaching() const
{
return m_list->listItemCaching();
}
void SimpleList::setListItemCaching(bool enable)
{
m_list->setListItemCaching(enable);
}
void SimpleList::keyPressEvent(QKeyEvent *event)
{
static QElapsedTimer keyPressInterval;
static qreal step = 0.0;
static bool repeat = false;
int interval = keyPressInterval.isValid() ? keyPressInterval.elapsed() : 0;
ScrollBar* sb = verticalScrollBar();
qreal currentValue = sb->sliderPosition();
if(interval < 250 ) {
if(!repeat) step = 0.0;
step = step + 2.0;
if(step > 100) step = 100;
repeat = true;
}
else {
step = 1.0;
if(itemAt(0))
step = itemAt(0)->size().height();
repeat = false;
}
if(event->key() == Qt::Key_Up ) { //Up Arrow
sb->setSliderPosition(currentValue - step);
}
if(event->key() == Qt::Key_Down ) { //Down Arrow
sb->setSliderPosition(currentValue + step);
}
keyPressInterval.start();
}
void SimpleList::setTwoColumns(const bool twoColumns)
{
m_list->setTwoColumns(twoColumns);
}
bool SimpleList::twoColumns()
{
return m_list->twoColumns();
}
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