Thread 이벤트 Gui 폼에서 받기
// mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow)
{
ui->setupUi(this);
mThread = new MyThread(this);
connect(mThread, SIGNAL(NumberChanged(int)), this, SLOT(onNumberChanged(int)));
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::onNumberChanged(int Number)
{
ui->LblNumber->setText(QString::number(Number));
}
void MainWindow::on_BtnStart_clicked()
{
mThread->start();
}
void MainWindow::on_BtnStop_clicked()
{
mThread->Stop = true;
}
// mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include "mythread.h"
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
MyThread *mThread;
public slots:
void onNumberChanged(int);
private slots:
void on_BtnStart_clicked();
void on_BtnStop_clicked();
};
#endif // MAINWINDOW_H
// mythread.cpp
#include "mythread.h"
MyThread::MyThread(QObject *parent) : QThread(parent)
{
Stop = false;
}
void MyThread::run()
{
for(int i = 0; i < 10000; i ++) {
m_Mutex.lock();
if(Stop) break;
m_Mutex.unlock();
// sleep(1);
this->msleep(100);
emit NumberChanged(i);
}
}
// mythread.h
#ifndef MYTHREAD_H
#define MYTHREAD_H
#include <QThread>
#include <QMutex>
class MyThread : public QThread
{
Q_OBJECT
private:
QMutex m_Mutex;
public:
explicit MyThread(QObject *parent = 0);
void run();
bool Stop;
signals:
void NumberChanged(int);
public slots:
};
#endif // MYTHREAD_H