C++,QT多个窗体切换，widget 多个页面切换跳转显示

C++,QT多个窗体切换，widget,QTimer 3个页面切换跳转，使用wdiget 的方式

源码工程链接
 

先看效果：

 

 

onewidget.h

#ifndef ONEWIDGET_H
#define ONEWIDGET_H

#include 
#include "twowidget.h"
#include "threewidget.h"


QT_BEGIN_NAMESPACE
namespace Ui { class OneWidget; }
QT_END_NAMESPACE

class OneWidget : public QWidget
{
    Q_OBJECT

public:
    OneWidget(QWidget *parent = nullptr);
    ~OneWidget();

private slots:
    void vBtnJump3Process(void);
    void vBtnJump2Process(void);
    void vBtnJump1Process(int);

private:
    Ui::OneWidget *ui;
    twowidget *pPage2;
    threeWidget *pPage3;
    void vInit(void);
};
#endif // ONEWIDGET_H

onewidget.cpp

#include "onewidget.h"
#include "ui_onewidget.h"
#include 
#include 

OneWidget::OneWidget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::OneWidget)
{
    ui->setupUi(this);
    this->vInit();
}

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

void OneWidget::vInit(void)
{
    this->move(0,0);
    this->setWindowFlag(Qt::FramelessWindowHint);

    QMovie *pMovie=new QMovie("./dan.gif");
    ui->label->setMovie(pMovie);
    ui->label->setScaledContents(true);
    pMovie->start();

   connect(ui->pbtnJump2,SIGNAL(clicked()),this,SLOT(vBtnJump2Process()));
   connect(ui->pbtnJump3,SIGNAL(clicked()),this,SLOT(vBtnJump3Process()));

   this->pPage2=new twowidget;
   connect(this->pPage2,SIGNAL(signalBtnPage1(int)),this,SLOT(vBtnJump1Process(int)));
   connect(this->pPage2,SIGNAL(signalBtnPage3()),this,SLOT(vBtnJump3Process()));

   this->pPage3=new threeWidget;
   connect(this->pPage3,SIGNAL(vSingalPage1(int)),this,SLOT(vBtnJump1Process(int)));
   connect(this->pPage3,SIGNAL(vSingalPage2()),this,SLOT(vBtnJump2Process()));
}


void OneWidget::vBtnJump3Process()
{
    this->pPage3->show();
    this->pPage2->hide();
    this->hide();
}


void OneWidget::vBtnJump2Process()
{
    this->pPage2->show();
    this->pPage3->hide();
    this->hide();

    qDebug()<<"press"<show();
    this->pPage2->hide();
    this->pPage3->hide();
}

twowidget.h

#ifndef TWOWIDGET_H
#define TWOWIDGET_H

#include 

namespace Ui {
class twowidget;
}

class twowidget : public QWidget
{
    Q_OBJECT

public:
    explicit twowidget(QWidget *parent = nullptr);
    ~twowidget();

private:
    Ui::twowidget *ui;
    void vInit(void);
    int slClickCnt=0;

private slots:
    void vBtnPage1Process(void);
    void vBtnPage3Process(void);

signals:
    void signalBtnPage1(int);
    void signalBtnPage3(void);
};

#endif // TWOWIDGET_H

twowidget.cpp

#include "twowidget.h"
#include "ui_twowidget.h"
#include 
#include 

twowidget::twowidget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::twowidget)
{
    ui->setupUi(this);
    this->vInit();
}

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

void twowidget::vInit()
{
    this->move(0,0);
    this->setWindowFlag(Qt::FramelessWindowHint);

    QMovie *pMovie=new QMovie("./dan2.gif");
    ui->label->setMovie(pMovie);
    ui->label->setScaledContents(true);
    pMovie->start();

    connect(ui->pbtnJump1,SIGNAL(clicked()),this,SLOT(vBtnPage1Process()));
    connect(ui->pbtnJump3,SIGNAL(clicked()),this,SLOT(vBtnPage3Process()));
}

void twowidget::vBtnPage1Process()
{
    this->slClickCnt++;
    emit signalBtnPage1(this->slClickCnt);
    qDebug()<<"emit signal btn page1 "<slClickCnt<

threeWidget.h:

#ifndef THREEWIDGET_H
#define THREEWIDGET_H

#include 
#include 

namespace Ui {
class threeWidget;
}

class threeWidget : public QWidget
{
    Q_OBJECT

public:
    explicit threeWidget(QWidget *parent = nullptr);
    ~threeWidget();

private:
    Ui::threeWidget *ui;
    void vInit();
    int slLcdCnt=0;
    int slPage3Cnt=0;
    QTimer *pTimer=nullptr;

private slots:
    void vBtnPage1Process();
    void vBtnPage2Process();
    void vTimerProcess();

signals:
    void vSingalPage1(int);
    void vSingalPage2(void);
};

#endif // THREEWIDGET_H

threeWidget.cpp

#include "threewidget.h"
#include "ui_threewidget.h"
#include 


threeWidget::threeWidget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::threeWidget)
{
    ui->setupUi(this);
    this->vInit();
}

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

void threeWidget::vInit()
{
    this->move(0,0);
    this->setWindowFlag(Qt::FramelessWindowHint);

    QMovie *pMovie=new QMovie("./pland.gif");
    ui->label->setMovie(pMovie);
    ui->label->setScaledContents(true);
    pMovie->start();

    connect(ui->pbtnJump1,SIGNAL(clicked()),this,SLOT(vBtnPage1Process()));
    connect(ui->pbtnJump2,SIGNAL(clicked()),this,SLOT(vBtnPage2Process()));

    this->pTimer=new QTimer(this);
    connect(this->pTimer,SIGNAL(timeout()),this,SLOT(vTimerProcess()));
    this->pTimer->start(100);
}

void threeWidget::vBtnPage1Process()
{
    this->slPage3Cnt++;
    emit vSingalPage1(this->slPage3Cnt);
}

void threeWidget::vBtnPage2Process()
{
    emit vSingalPage2();
}

void threeWidget::vTimerProcess()
{
    this->slLcdCnt++;
    if(this->slLcdCnt>99)
    {
        this->slLcdCnt=0;
    }
    ui->lcdNumber->display(this->slLcdCnt);
}