#include "helpscene.h"

helpscene::helpscene(QWidget *parent) : QMainWindow(parent)
{
    //设置窗口大小
    setFixedSize(MAIN_WIDTH, MAIN_HEIGHT);

    //设置图标
    setWindowIcon(QIcon(MAIN_ICON));

    //设置标题
    setWindowTitle(TITLE);

    //返回按钮
    PushButtonPlus* backBtn = new PushButtonPlus(BACK_BTN1, BACK_BTN2);
    backBtn->setParent(this);
    //布置到下面
    backBtn->move((this->width() - backBtn->width()) * 0.5, this->height() * 0.8);

    //信号连接信号
    QSound * backBtnSound = new QSound(":/res/BackButtonSound.wav", this);
    connect(backBtn, &PushButtonPlus::clicked, this, [this, backBtnSound]()
    {
        backBtnSound->play();
        QTimer::singleShot(100, this, [this]()//加个延时就不卡顿了
        {
            emit this->backToMainScene();
        });
    });

}

void helpscene::paintEvent(QPaintEvent *event)
{

        //创建画家，指定绘图设备
        QPainter painter(this);
        //创建 QPixmap 对象
        QPixmap pix;
        //加载图片
        pix.load(HELP_BACK);

        //图片拉伸效果
        painter.drawPixmap(0, 0, this->width(), this->height(), pix);

}