QT中状态机框架测试

QT中状态机框架测试

本文博客链接:http://blog.csdn.net/jdh99,作者:jdh,转载请注明.

环境：

主机:Fedora12

开发软件：QT

目标板：OK6410-A

实现功能:

两个按键KEY1,KEY2，产生状态迁移动作，3个状态:s1,s2,s3.其中s2又有2个子状态：s21,s22.

触发关系：

s1  - KEY1 -> s21

s21 - KEY2 -> s22

s22 - KEY1 -> s3

s3  - KEY2 -> s1

源代码：

widget.h:

#ifndef WIDGET_H#define WIDGET_H#include <QWidget>#include <QStackedWidget>#include <QDebug>#include <QTimer>#include <unistd.h>#include <sys/types.h>#include <fcntl.h>#include <sys/stat.h>#include <stdio.h>#include <sys/param.h>#include <QVector>#include <QByteArray>#include <QQueue>#include <QSemaphore>#include <iostream>#include <QFile>#include "QThread"#include <QtGui>#include <QMutex>#include <QtNetwork>#include <QUdpSocket>#include <sys/ioctl.h>#include <stdlib.h>#include <stdio.h>#include <linux/soundcard.h>#include <alsa/asoundlib.h>#include <QtGui/QMainWindow>#include <QtGui/QDialog>#include <QtGui/QPushButton>#include <QtGui/QHBoxLayout>#include <QtGui/QVBoxLayout>#include <QtGui/QGridLayout>#include <QTextCodec>#include <QtGui/QToolButton>#include <qsocketnotifier.h>#include <QTimer>#include <QtNetwork/QUdpSocket>#include <iostream>#include <qmessagebox.h>#include <qstringlist.h>#include <QSound>#include <sys/socket.h>#include <arpa/inet.h>#include <QMap>#include <linux/soundcard.h>#include <netinet/in.h>#include <netinet/ip.h>#include <netinet/ip_icmp.h>#include <netdb.h>#include <QHostAddress>#include <QStateMachine>#include <QState>using namespace std;namespace Ui {    class Widget;}class Widget : public QWidget{    Q_OBJECTpublic:    explicit Widget(QWidget *parent = 0);    ~Widget();    QStateMachine machine;                  //状态机    QState *s1;    QState *s2;    QState *s21;    QState *s22;    QState *s3;private:    Ui::Widget *ui;private slots:    void slot_s1_in();    void slot_s1_out();    void slot_s21_in();    void slot_s21_out();    void slot_s22_in();    void slot_s22_out();    void slot_s3_in();    void slot_s3_out();    void slot_s2_in();    void slot_s2_out();};#endif // WIDGET_H

widget.c:

#include "widget.h"#include "ui_widget.h"//状态迁移/*s1  - KEY1 -> s21s21 - KEY2 -> s22s22 - KEY1 -> s3s3  - KEY2 -> s1*/Widget::Widget(QWidget *parent) :    QWidget(parent),    ui(new Ui::Widget){    ui->setupUi(this);    //状态初始化    s1 = new QState();    s2 = new QState();    s21 = new QState(s2);    s22 = new QState(s2);    s3 = new QState();    //s21状态设置初始子状态    s2->setInitialState(s21);    //将状态添加到状态机    machine.addState(s1);    machine.addState(s2);    machine.addState(s3);    //设置初始状态    machine.setInitialState(s1);    //定义状态机迁移    s1->addTransition(ui->KEY1,SIGNAL(clicked()),s21);    s21->addTransition(ui->KEY2,SIGNAL(clicked()),s22);    s22->addTransition(ui->KEY1,SIGNAL(clicked()),s3);    s3->addTransition(ui->KEY2,SIGNAL(clicked()),s1);    //连接状态机和处理函数    connect(s1,SIGNAL(entered()),this,SLOT(slot_s1_in()));    connect(s21,SIGNAL(entered()),this,SLOT(slot_s21_in()));    connect(s22,SIGNAL(entered()),this,SLOT(slot_s22_in()));    connect(s3,SIGNAL(entered()),this,SLOT(slot_s3_in()));    connect(s1,SIGNAL(exited()),this,SLOT(slot_s1_out()));    connect(s21,SIGNAL(exited()),this,SLOT(slot_s21_out()));    connect(s22,SIGNAL(exited()),this,SLOT(slot_s22_out()));    connect(s3,SIGNAL(exited()),this,SLOT(slot_s3_out()));    connect(s2,SIGNAL(entered()),this,SLOT(slot_s2_in()));    connect(s2,SIGNAL(exited()),this,SLOT(slot_s2_out()));    //开启状态机    machine.start();}void Widget::slot_s1_in(){    qDebug() << "s1 in";}void Widget::slot_s1_out(){    qDebug() << "s1 out";}void Widget::slot_s21_in(){    qDebug() << "s21 in";}void Widget::slot_s21_out(){    qDebug() << "s21 out";}void Widget::slot_s22_in(){    qDebug() << "s22 in";}void Widget::slot_s22_out(){    qDebug() << "s22 out";}void Widget::slot_s3_in(){    qDebug() << "s3 in";}void Widget::slot_s3_out(){    qDebug() << "s3 out";}void Widget::slot_s2_in(){    qDebug() << "s2 in";}void Widget::slot_s2_out(){    qDebug() << "s2 out";}Widget::~Widget(){    delete ui;}

说明：

测试发现，进子状态，首先先进父状态,跳转到其他状态，则会先退出当前子状态，然后再退出父状态.