MainWindow .h
----------------------------------------------------------------------
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <QMovie>
#include <QTimer>
#include <QPixmap>
#include <QNetworkAccessManager>
#include <QPixmap>
#include <QPixmap>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QByteArray>
#include <QUrl>
#include <QTextEdit>
#include <QEventLoop>
#include <QLabel>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private slots:
void on_label_linkActivated(const QString &link);
void update();
void on_textBrowser_destroyed();
private:
Ui::MainWindow *ui;
QMovie *movie;
QTimer *timer;
int i;
QUrl *url ;
QNetworkAccessManager manager;
QEventLoop loop;
QNetworkReply *reply;
};
#endif // MAINWINDOW_H
-/*-------------------------------------------/*--------------------
mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
movie= new QMovie();
ui->label->setMovie(movie);
//ui->label_3->setMovie(movie);
i=0;
timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(update()));
timer->start(45); //1s执行一次update()
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_label_linkActivated(const QString &link)
{
}
void MainWindow::update()
{
i=i+1;
if(i>5) i=1;
switch(i)
{
//case 1:movie->setFileName("../1");movie->start();break;
//case 2:movie->setFileName("../2");movie->start();break;
//case 3:movie->setFileName("../3");movie->start();break;
//case 4:movie->setFileName("../4");movie->start();break;
//case 5:movie->setFileName("../5");movie->start();break;
default:break;
}
/*<img src=\"http://192.168.3.3/pull.bmp\"/>
*/
QUrl url("http://img01.cztv.com/201412/05/8c0fb86122a38830b534fb8e4238d169.jpg");
//QUrl url("http://192.168.3.3/pull.bmp");
// qDebug() << "Reading picture form " << url;
reply = manager.get(QNetworkRequest(url));
//请求结束并下载完成后，退出子事件循环
QObject::connect(reply, SIGNAL(finished()), &loop, SLOT(quit()));
//开启子事件循环
loop.exec();
QByteArray jpegData = reply->readAll();
QPixmap pixmap;
pixmap.loadFromData(jpegData);
ui->label_3->setPixmap(pixmap); // 你在QLabel显示图片
ui->label_3->resize (640,320 );
ui->label_2->setPixmap(pixmap); // 你在QLabel显示图片
ui->label_2->resize (640,320 );
ui->label_2->setStyleSheet("color:black");
//movie->start();
}
void MainWindow::on_textBrowser_destroyed()
{
}
-/*-------------------------------------------/*--------------------
main.cpp
#include "mainwindow.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}
