//mainwindow.h
#ifndef
MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private slots:
void on_setbt_clicked();
void on_startbt_clicked();
void func();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H//mainwindow.cpp
#include
"mainwindow.h"
#include "ui_mainwindow.h"
#include <QString>
#include <QTimer>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_setbt_clicked()
{
QString a=ui->lineEdit->text();
int s=a.toInt();
ui->horizontalSlider->setValue(s);
ui->progressBar->setValue(s);
}
void MainWindow::on_startbt_clicked()
{
QTimer *t=new QTimer(this);
connect(t,SIGNAL(timeout()),this,SLOT(func()));
t->start(1000);
}
void MainWindow::func(){
QString a=ui->lineEdit->text();
int s=a.toInt();
if(s<100){
s++;
ui->lineEdit->setText(QString::number(s));
ui->horizontalSlider->setValue(s);
ui->progressBar->setValue(s);
}
else{
s=0;
ui->lineEdit->setText(QString::number(s));
ui->horizontalSlider->setValue(s);
ui->progressBar->setValue(s);
}
}