#include "numkeyboard.h"
#include "ui_numkeyboard.h"

NumKeyboard::NumKeyboard(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::NumKeyboard)
{
    ui->setupUi(this);
    this->setWindowFlags(Qt::Dialog|Qt::FramelessWindowHint);   //Set dialog type
    setCursor(QCursor(Qt::CrossCursor));    //Set cursor type
}

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

void NumKeyboard::setText(QString str)  //Set text content
{
    strContent = str;
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setFocus();
}

QString NumKeyboard::getText()  //Get text content,to connect slot
{
    return strContent;
}

void NumKeyboard::on_pushButton_1_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();    //Get cursor position
    if(strContent.left(idx) == "0")     //Zero cannot be the first number,so one number cannot has two zero
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '1');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_2_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(strContent.left(idx) == "0")
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '2');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_3_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(strContent.left(idx) == "0")
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '3');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_4_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(strContent.left(idx) == "0")
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '4');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_5_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(strContent.left(idx) == "0")
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '5');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_6_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(strContent.left(idx) == "0")
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '6');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_7_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(strContent.left(idx) == "0")
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '7');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_8_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(strContent.left(idx) == "0")
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '8');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_9_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(strContent.left(idx) == "0")
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '9');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_0_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(strContent.left(idx) == "0" || (idx==0 &&strContent!=""))    //If the first is zero
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '0');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_Dot_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(idx==0 || strContent.contains('.'))      //Dot cannot be at first and has more than two dot in on number
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.insert(idx, '.');
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx+1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_PM_clicked()    //Add minus
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(strContent.left(1) == "-")
    {
        strContent.remove(0, 1);
        ui->lineEdit_Dialog->setText(strContent);
        ui->lineEdit_Dialog->setCursorPosition(idx-1);
        ui->lineEdit_Dialog->setFocus();
    }
    else
    {
        if(strContent=="0" || strContent=="")
        {
            ui->lineEdit_Dialog->setCursorPosition(idx);
            ui->lineEdit_Dialog->setFocus();
        }
        else
        {
            strContent.insert(0, '-');
            ui->lineEdit_Dialog->setText(strContent);
            ui->lineEdit_Dialog->setCursorPosition(idx+1);
            ui->lineEdit_Dialog->setFocus();
        }
    }
}

void NumKeyboard::on_pushButton_Delete_clicked()
{
    int idx = ui->lineEdit_Dialog->cursorPosition();
    if(idx == 0)
    {
        ui->lineEdit_Dialog->setCursorPosition(idx);
        ui->lineEdit_Dialog->setFocus();
        return;
    }
    strContent.remove(idx-1,1);     //Remove function for str.Useful!!!
    ui->lineEdit_Dialog->setText(strContent);
    ui->lineEdit_Dialog->setCursorPosition(idx-1);
    ui->lineEdit_Dialog->setFocus();
}

void NumKeyboard::on_pushButton_Cancel_clicked()
{
    this->close();
    valid = false;      //Judge if send str to mainwindow or not
}

void NumKeyboard::on_pushButton_OK_clicked()
{
    this->close();
    valid = true;
}