#include "makemap.h"
#include "ui_makemap.h"
#include"QString"
#include"qfiledialog.h"
#include"QMessageBox"
#include"qpainter.h"
#include"QPushButton"
makeMap::makeMap(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::makeMap)
{
    ui->setupUi(this);
    this->resize(868,740);
    this->setWindowIcon(QIcon(":/image/Man.png"));

    this->setWindowTitle("自制地图");

     but=new QPushButton(this);
    but->move(110,550);
    but->resize(108,51);
    connect(but,&QPushButton::clicked,this,&QMainWindow::close);
    but->setText("退出");

    but1=new QPushButton(this);
    but1->move(110,360);
     but1->resize(108,51);
    connect(but1,&QPushButton::clicked,this,[this](){this->onActionSaveTriggered(1);});
    but1->setText("保存");

    mPainter=new QPainter(this);
    //功能连接
    this->connect(ui->actionNew,SIGNAL(triggered(bool)),this,SLOT(onActionNewTriggered(bool)));
    this->connect(ui->actionOpen,SIGNAL(triggered(bool)),this,SLOT(onActionOpenTriggered(bool)));
    this->connect(ui->actionPaste,SIGNAL(triggered(bool)),this,SLOT(onActionPasteTriggered(bool)));
    this->connect(ui->actionRedo,SIGNAL(triggered(bool)),this,SLOT(onActionRedoTriggered(bool)));
    this->connect(ui->actionUndo,SIGNAL(triggered(bool)),this,SLOT(onActionUndoTriggered(bool)));
    this->connect(ui->actionSave,SIGNAL(triggered(bool)),this,SLOT(onActionSaveTriggered(bool)));
    this->connect(ui->actionSaveas,SIGNAL(triggered(bool)),this,SLOT(onActionSaveasTriggered(bool)));

    this->saved=true;
    this->connect(ui->textEdit,SIGNAL(textChanged()),this,SLOT(onEdited()));
}
void makeMap::paintEvent(QPaintEvent *event)
{
    mPainter->begin(this);

    QPainter BackgroundPainter(this);
    BackgroundPainter.drawImage(QRect(321,35,540,710),QImage(":/image/tips.png"));

    mPainter->end();
}
void makeMap::onActionSaveTriggered(bool checked)

{
    if(savepath.isEmpty())
    {
        QString file_path;
        if(file_path.isEmpty())
        {
            file_path=QFileDialog::getSaveFileName(this,"选择路径",".","*.txt");
        }
        this->savepath=file_path;
    }

    QFile txt(this->savepath);
    bool tag=txt.open(QIODevice::WriteOnly);
    if(tag)
    {
        txt.write(ui->textEdit->toPlainText().toStdString().data());
        this->saved=true;
    }
    else
        QMessageBox::critical(nullptr,"错误","无法打开文件，请检查文件目录",QMessageBox::Yes,QMessageBox::Yes);
    txt.close();

}
void makeMap::onEdited()
{
    saved=false;
}
void makeMap::onActionNewTriggered(bool checked)
{
    if(this->saved)
    {
        ui->textEdit->clear();
        this->saved=true;
    }
    else{
        int tag=QMessageBox::question(nullptr,"注意","是否保存文件",QMessageBox::Yes|QMessageBox::No,QMessageBox::Yes);

        if(tag==QMessageBox::Yes)
        {
            this->onActionSaveTriggered(false);
        }
        ui->textEdit->clear();
        this->saved=true;
    }
}
void makeMap::onActionOpenTriggered(bool checked)
{
    QString txt;
    txt=QFileDialog::getOpenFileName(this,"打开地图","./","*.txt");
    if(false==txt.isEmpty())
    {
        QFile file(txt);
        bool ok=file.open(QIODevice::ReadOnly);
        if(ok==true)
        {
            QByteArray arr=file.readAll();
            ui->textEdit->setText(QString(arr));
            file.close();
        }
    }
}
void makeMap::onActionSaveasTriggered(bool checked)
{
    this->savepath.clear();
    this->onActionSaveTriggered(checked);
}
void makeMap::onActionPasteTriggered(bool checked)
{
    ui->textEdit->paste();
}
void makeMap::onActionRedoTriggered(bool checkeed)
{
    ui->textEdit->redo();
}
void makeMap::onActionUndoTriggered(bool checked)
{
    ui->textEdit->undo();
}
makeMap::~makeMap()
{
    delete ui;
    delete but;
    delete but1;
    delete mPainter;
}