BitCoin主场景类定义与实现

#ifndef MAINSCENE_H
#define MAINSCENE_H

#include <QMainWindow>
#include"mypushbutton.h"
#include"chooselevelscene.h"

//解决Qstring下输出中文时出现的乱码情况
#ifdef WIN32
#pragma execution_character_set("utf-8")
#endif

namespace Ui {
class MainScene;
}

class MainScene : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainScene(QWidget *parent = 0);

    ChooseLevelScene * chooseScene ;  //选择不同场景的指针

    ~MainScene();
    void paintEvent(QPaintEvent *); //绘图事件函数


private:
    Ui::MainScene *ui;
};

#endif // MAINSCENE_H

#include "mainscene.h"
#include "ui_mainscene.h"
#include"qstring.h"
#include"qicon.h"
#include"Qpainter"
#include"QDebug.h"
#include"mypushbutton.h"
#include<QPushButton>
#include<QTimer>
#include"chooselevelscene.h"



MainScene::MainScene(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainScene)
{
    ui->setupUi(this);
    //翻金币主场景，设置窗口标题，固定大小和标题前的图标
    this->setWindowTitle("BitCoin");
    this->setFixedSize(320,580);
    this->setWindowIcon(QIcon(":/res/Coin0001.png"));

    //退出程序
    connect(ui->actionquit,&QAction::triggered,this,&MainScene::close);

    //创建自定义的开始按钮，移动开始按钮到中心位置，并以当前窗体为父类
    MyPushButton * startBtn = new MyPushButton(":/res/MenuSceneStartButton.png");
    startBtn->move(this->width()*0.5-startBtn->width()*0.5,this->height()*0.7);
    startBtn->setParent(this);
    
    //创建不同选择场景的指针
    ChooseLevelScene *chooseScene=new ChooseLevelScene;
     
    //触发选择场景返回功能，返回主场景
     connect(chooseScene,&ChooseLevelScene::chooseSceneBack,[=](){
                      this->show();
                  });

    //触发自定义按钮的上下跳动并延时500ms进入场景选择界面
    connect(startBtn,&MyPushButton::clicked,[=](){
                       startBtn->zoom1();
                       startBtn->zoom2();
                       //延时进入选择
                       QTimer::singleShot(500,this,[=](){

                           this->hide();
                           chooseScene->show();
                       });

    });



}


  //绘图事件函数
 void MainScene::paintEvent(QPaintEvent *)
 {

     //创建画笔,指定绘图设备
     QPainter painter(this);
     QPixmap pix;
     pix.load(":/res/PlayLevelSceneBg.png");
     //绘制背景图
     painter.drawPixmap(0,0,this->width(),this->height(),pix);
     //加载标题
      pix.load(":/res/Title.png");
      //大小调整
      pix=pix.scaled(pix.width()*0.5,pix.height()*0.5);
      //绘制标题
      painter.drawPixmap(10,30,pix.width(),pix.height(),pix);



 }

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