#include "numkeydia.h"
#include "ui_numkeydia.h"
#include <QMouseEvent>
#include <QDebug>
#include <QMessageBox>

NumKeyDia::NumKeyDia(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::NumKeyDia)
{
    ui->setupUi(this);
    this->setWindowFlag(Qt::FramelessWindowHint);
    ui->lineEdit_input->setCursorPosition(Qt::StrongFocus);
    auto _btnInputList = ui->widget_input->findChildren<QPushButton *>();
    foreach (auto &i, _btnInputList)
    {
        connect(i, &QPushButton::clicked, this, &NumKeyDia::btn_input_clicked);
        i->setFocusPolicy(Qt::NoFocus);
    }
    ui->toolButton_ico->installEventFilter(this);
    ui->label_appInfo->installEventFilter(this);
}

NumKeyDia::~NumKeyDia()
{
    delete ui;
}

bool NumKeyDia::eventFilter(QObject *, QEvent *event)
{
    if(event->type() == QEvent::MouseButtonDblClick)
    {
        if(!m_bMaxFlag)
        {
            this->showFullScreen();
            m_bMaxFlag = true;
        }
        else
        {
            this->showNormal();
            m_bMaxFlag = false;
        }
        return true;
    }
    else if(event->type() == QEvent::MouseButtonPress)
    {
        QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
        m_point = mouseEvent->globalPos() - frameGeometry().topLeft();
        //鼠标位置减去左上角的左边
    }
    else if(event->type() == QEvent::MouseMove)
    {
        QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
        move(mouseEvent->globalPos() - m_point);
    }
    return false;
}

QLineEdit *NumKeyDia::pLineEdit() const
{
    return m_pLineEdit;
}

void NumKeyDia::setPLineEdit(QLineEdit *newPLineEdit)
{
    m_pLineEdit = newPLineEdit;
    QString _text = m_pLineEdit->text();
//    int _cnt = _text.count();
//    for(int i = 0; i < _cnt; ++i)
//    {
//        if(_text.at(0) != "1" && _text.at(0) != "2" && _text.at(0) != "3" && _text.at(0) != "4" &&
//                _text.at(0) != "5" && _text.at(0) != "6" && _text.at(0) != "7" && _text.at(0) != "8" && _text.at(0) != "9")
//        {
//            _text.remove(0, 1);
//        }
//    }
    ui->lineEdit_input->setFocus();
    ui->lineEdit_input->setText(_text);
    newPLineEdit->setEnabled(false);

    m_firstInputFlag = true;

    ui->label_3->setText(m_pLineEdit->property("Name").toString() + ": ");

    //最大值和最小值显示
    m_isNum = m_pLineEdit->property("IsNum").toBool();
    if(!m_isNum)
    {
        ui->label_min->setText(tr("no limit"));
        ui->label_max->setText(tr("no limit"));
        return;
    }

    m_minValue = m_pLineEdit->property("Min").toDouble();
    m_maxValue = m_pLineEdit->property("Max").toDouble();

    m_isDouble = m_pLineEdit->property("IsDouble").toBool();

    if(m_isDouble)
    {
        m_format = m_pLineEdit->property("Format").toInt();
        m_prec = m_pLineEdit->property("Prec").toInt();
    }

    if(m_minValue == m_maxValue)
    {
        ui->label_min->setText(tr("no limit"));
        ui->label_max->setText(tr("no limit"));
    }
    else
    {
        if(m_isDouble)
        {
            ui->label_max->setText(QString::number(m_maxValue, m_format, m_prec));
            ui->label_min->setText(QString::number(m_minValue, m_format, m_prec));
        }
        else
        {
            ui->label_max->setText(QString::number(m_maxValue, 10, 0));
            ui->label_min->setText(QString::number(m_minValue, 10, 0));
        }
    }
}

void NumKeyDia::on_btn_ok_clicked()
{
    if(!m_pLineEdit)
        return;

    //如果输入为空，那么设为0
    QString _res = ui->lineEdit_input->text();
    if(_res == "")
        _res = "0";

    //不是数字，直接设置后返回
    if(!m_isNum)
    {
        m_pLineEdit->setText(_res);
    }
    else
    {
        bool ok;
        double _d = ui->lineEdit_input->text().toDouble(&ok);

        if(!ok)
        {
            QMessageBox::critical(this, "error", "Input is not a number!\nPlease reInput");
            return;
        }

        bool _isNotValid = false;
        if(m_minValue < m_maxValue)
        {
//        _d = (_d < m_minValue) ? m_minValue : _d;
//        _d = (_d > m_maxValue) ? m_maxValue : _d;
            if(_d < m_minValue || _d > m_maxValue)
                _isNotValid = true;
        }
        if(_isNotValid)
        {
            QMessageBox::critical(this, "error", "Input is not valid!\nPlease reInput");
            return;
        }

        if(m_isDouble)
            m_pLineEdit->setText(QString::number(_d, m_format, m_prec));
        else
            m_pLineEdit->setText(QString::number(_d, 10, 0));
    }

    closeKeyBoard();
}


void NumKeyDia::on_btn_cancel_clicked()
{
    //取消，关闭数字键盘
    closeKeyBoard();
}


void NumKeyDia::on_btn_clear_clicked()
{
    //清空
    ui->lineEdit_input->clear();
    ui->lineEdit_input->setFocus();
}


void NumKeyDia::on_btn_back_clicked()
{
    m_firstInputFlag = false;

    int _index = ui->lineEdit_input->cursorPosition();
    QString _currentText = ui->lineEdit_input->text();

    if(_currentText == "")
        ui->lineEdit_input->setFocus();

    //当前光标在最前面,不做任何处理
    if(_index != 0)
    {
        //删除前一个字符
        _currentText.remove(_index - 1, 1);
        ui->lineEdit_input->setText(_currentText);
    }

    ui->lineEdit_input->setFocus();
    ui->lineEdit_input->setCursorPosition(_index - 1);
}

void NumKeyDia::btn_input_clicked()
{
    if(m_firstInputFlag)
    {
        ui->lineEdit_input->clear();
        m_firstInputFlag = false;
    }
    auto _btnClicked = qobject_cast<QPushButton *>(sender());
    QString _inputValue = _btnClicked->text();

    int _index = ui->lineEdit_input->cursorPosition();
    QString _currentText = ui->lineEdit_input->text();

    _currentText.insert(_index, _inputValue);
    ui->lineEdit_input->setText(_currentText);
}

void NumKeyDia::closeKeyBoard()
{
    this->close();
    m_pLineEdit->setEnabled(true);
}

void NumKeyDia::setMaxValue(double newMaxValue)
{
    m_maxValue = newMaxValue;
}

void NumKeyDia::setMinValue(double newMinValue)
{
    m_minValue = newMinValue;
}