mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include<QPainter>
#include<QPaintDevice>
#include<mypushbutton.h>
#include<QTimer>
#include<QSoundEffect>

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    //设置主场景
    //设置固定大小
    this->setFixedSize(320,588);

    //设置图标
    this->setWindowIcon(QIcon(":/CoinFlip/res/Coin0001.png"));

    //设置标题
    this->setWindowTitle("翻金币的主页面");

    //实现退出功能
    connect(ui->actionout,&QAction::triggered,[=](){
        this->close();
    });

    //设置开始按钮音效
    QSoundEffect *startBtnSound=new QSoundEffect(this);
    startBtnSound->setSource(QUrl::fromLocalFile(":/CoinFlip/res/TapButtonSound.wav"));
    startBtnSound->setVolume(0.2f);
    //设置开始按钮
    myPushButton *startBtn=new myPushButton(":/CoinFlip/res/MenuSceneStartButton.png");
    startBtn->setParent(this);
    startBtn->move(this->width()*0.5-startBtn->width()*0.5,this->height()*0.7);

    this->cho=new chooseLevelScene(this);

    connect(startBtn,&QPushButton::clicked,[=](){
        //开始按钮音效播放
        startBtnSound->play();
        startBtn->zoom1();
        startBtn->zoom2();
        //延时展示选择窗口
        QTimer::singleShot(200,this,[=](){
            //隐藏主窗口
            this->hide();
            //使选择关卡窗口位置与当前窗口位置一致
            cho->setGeometry(this->geometry());
            //显示选择窗口
            cho->show();
        });
    });

    connect(cho,&chooseLevelScene::chooseSceneBack,this,[=](){
        cho->hide();
        this->setGeometry(cho->geometry());
        this->show();
    });
}

void MainWindow::paintEvent(QPaintEvent *event)
{
    QPainter painter(this);
    QPixmap pix(":/CoinFlip/res/PlayLevelSceneBg.png");
    painter.drawPixmap(0,0,this->width(),this->height(),pix);

    //画背景图上的图标
    pix.load(":/CoinFlip/res/Title.png");
    //缩放
    pix=pix.scaled(pix.width()*0.5,pix.height()*0.5);
    painter.drawPixmap(10,30,pix);
}

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