#include "widget.h"
#include "ui_widget.h"
#include <QMouseEvent>
#include <QDebug>
#include <QDialog>
#include <QItemSelectionModel>
#include <QModelIndex>
Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
      ui->setupUi(this);
      connect(ui->pushButton,SIGNAL(clicked()),this,SLOT(onButtonClicked()));
      connect(ui->pushButton_2,SIGNAL(clicked()),this,SLOT(onButton2Clicked()));
      connect(ui->pushButton_3,SIGNAL(clicked()),this,SLOT(onButton3Clicked()));
      connect(ui->pushButton_4,SIGNAL(clicked()),this,SLOT(onButton4Clicked()));
      QStringList list;
      list << "1" << "2" << "3" << "4" << "5";
      ui->comboBox->addItems(list);
}
Widget::~Widget()
{
delete ui;
}
void Widget::onButtonClicked()
{
      //show popup
      ui->comboBox->showPopup();
}
void Widget::onButton2Clicked()
{
      //move down
      m_index++;
      m_index = m_index %4;
      ui->comboBox->setCurrentIndex(m_index);
      QModelIndex itemIndex = ui->comboBox->view()->model()->index(m_index,0);
      ui->comboBox->view()->selectionModel()
      ->setCurrentIndex(itemIndex,QItemSelectionModel::SelectCurrent);
}
void Widget::onButton3Clicked()
{
      //move up
      m_index--;
      m_index = m_index %4;
      ui->comboBox->setCurrentIndex(m_index);
      QModelIndex itemIndex = ui->comboBox->view()->model()->index(m_index,0);
      ui->comboBox->view()->selectionModel()
      ->setCurrentIndex(itemIndex,QItemSelectionModel::SelectCurrent);
}
void Widget::onButton4Clicked()
{
      //chose one
      QModelIndex itemIndex = ui->comboBox->view()->model()->index(m_index,0);
      ui->comboBox->view()->selectionModel()->setCurrentIndex(itemIndex,QItemSelectionModel::ToggleCurrent);
}