基于qt开发的智能系统：电子相册，监控摄像头模块，音乐播放器，视频播放器，电子时钟
- 登录模块
源码请移步
//登录验证按钮函数
void MainWindow::on_loginBtn_clicked()
{
//获得userNameLEd输入框的文本userNameLEd->text()；
//trimmed()去掉前后空格
//tr()函数，防止设置中文时乱码
if(ui->userNameLEd->text().trimmed() == tr("jiang") && ui->pwdLEd->text() == tr("123"))
{
//跳转到农业的主界面
NongYeMainWindow *nongYeMainWindow = new NongYeMainWindow(this);
this->close();
nongYeMainWindow->show();
}
else {
QMessageBox::warning(this, tr("警告！"), tr("用户名或密码错误！"), QMessageBox::Yes);
// 清空内容
ui-> userNameLEd->clear();
ui-> pwdLEd->clear();
//定位光标
ui-> userNameLEd->setFocus();
}
}
- 电子时钟
//显示时间
void MainWindow::update_time()
{
//QString cur_time = QTime::currentTime().toString("hh:mm:ss");
//ui->label_4->setText(cur_time);
QString cur_date = QDate::currentDate().toString("yyyy-MM-dd");
//qDebug()<
ui->lcdNumber->display(cur_date);
QDateTime time = QDateTime::currentDateTime();
//QString str = time.toString("yyyy-MM-dd hh:mm:ss dddd");
QString str = time.toString("hh:mm:ss dddd");
ui->label_4->setText(str);
}
主界面：
//跳转到播放器
void NongYeMainWindow::on_pushButton_3_clicked()
{
Bofangqi *bafangqi =new Bofangqi();
this->close();
bafangqi->show();
}
4：电子相册
#include "photo.h"
#include "ui_photo.h"
#include "nongyemainwindow.h"
#include
ui->lcdNumber->display(cur_date);
}
//获取文件路径
void Photo::on_FileButton_clicked()
{
//槽函数当中,获取一个
QString filename = QFileDialog::getOpenFileName(this);
ui->FileEdit->setText(filename);
/* //获取多个文件
QStringList filenames = QFileDialog::getOpenFileNames(this);
qDebug()<
//获取即将要保存的文件路径
// QString savefile = QFileDialog::getSaveFileName(this);
qDebug()<<filename;
}
void Photo::on_startshow_clicked()
{
tutimer.start(1000);
ui->label_4->setText("正在播放图片！");
// i++;
ui->FileEdit->setText(imgpath[i]);//图片路径显示
ui->FileEdit->setText("正在播放图片》》》》》》》》》》》》》》》》》》》》》》》》》》》》");
}
void Photo::on_stopshow_clicked()
{
tutimer.stop();
ui->label_4->setText("已停止播放图片！");
}
void Photo::img_show()
{
//打开文件夹是imgList为空
//pix.load(imgList[i]); //下载图片
pix.load(imgpath[i]);
//设置图片大小为Label的大小，否则就会出现滑动条
pix = pix.scaled(ui->label->width(), ui->label->height(), Qt::KeepAspectRatio);
ui->label->setPixmap(pix);
i++;
if (i > j) {
i = 0;
}
}
//打开图片文件
void Photo::on_filesOpen_clicked_clicked()
{
int k = 0;
/*
QStringList list = QFileDialog::getOpenFileNames(this, "select img", "C:\\Users\\Mature\\Desktop\\project\\project", "*.*");
for (it = list.begin(); it < list.end();it++) {
imgpath[k] = *it;
k++;
}
j = k-1;
if (j < 0) {
j = 0;
}
*/
//指定文件夹过滤，非图片文件
//获取文件所在位置
QString path = QFileDialog::getExistingDirectory(this, tr("open dir"), QDir::currentPath(), QFileDialog::ShowDirsOnly|QFileDialog::DontResolveSymlinks);
//qDebug()<
QDir dir(path);
if (!dir.exists()) {
qDebug()<<path<<"不存在";
}
QStringList filters;
//设置过滤规则
filters<<QString("*.jpg")<<QString("*.jpeg")<<QString("*.bmp")<<QString("*.png");
dir.setFilter(QDir::Files|QDir::NoSymLinks);
dir.setNameFilters(filters);
QStringList list = dir.entryList();
for (it = list.begin(); it < list.end();it++) {
//qDebug()<<*it;
//文件的所有图片
imgpath[k] = QString("%1/%2").arg(path).arg(*it);
k++;
}
j = k-1;
if (j < 0) {
j = 0;
}
ui->label_4->setText("请播放图片！");
QMessageBox::information(this,"消息提示","你指定的文件夹所有图片打开成功！",QMessageBox::Ok);
ui->FileEdit->setText(imgpath[i]);//图片路径显示
}
//前进
void Photo::on_Speed_clicked()
{
tutimer.stop();
i=i+1;
if(i>j)
{
i=0;
}
pix.load(imgpath[i]);
pix = pix.scaled(ui->label->width(), ui->label->height(), Qt::KeepAspectRatio);
//设置图片大小为Label的大小，否则就会出现滑动条
//pix.scaled(ui->label->width(),ui->label->height(),Qt::IgnoreAspectRatio);
//设置图片大小为Label的大小，否则就会出现滑动条
ui-> label->setPixmap(pix);//显示图片
ui->label_4->setText("当前打开的图片为：");
ui->FileEdit->setText(imgpath[i]);//图片路径显示
}
//后退
void Photo::on_back_clicked()
{
tutimer.stop();
i=i-1;
if(i<0)
{
i=j;
}
pix.load(imgpath[i]);
pix = pix.scaled(ui->label->width(), ui->label->height(), Qt::KeepAspectRatio);
//设置图片大小为Label的大小，否则就会出现滑动条
ui->label->setPixmap(pix);
ui->label_4->setText("当前打开的图片为：");
ui->FileEdit->setText(imgpath[i]);//图片路径显示
}
void Photo::on_big_clicked()
{
//放大
tutimer.stop();
double w = pix.width();
double h = pix.height();
pix = pix.scaled(w*1.2,h*1.2,Qt::KeepAspectRatio);
ui-> label->setPixmap(pix);
ui->label_4->setText("当前打开的图片为：");
ui->FileEdit->setText(imgpath[i]);//图片路径显示
}
void Photo::on_small_clicked()
{ //缩小
tutimer.stop();
double w = pix.width();
double h = pix.height();
pix = pix.scaled(w*0.8,h*0.8,Qt::KeepAspectRatio);
ui-> label->setPixmap(pix);
ui->label_4->setText("当前打开的图片为：");
ui->FileEdit->setText(imgpath[i]);//图片路径显示
}
void Photo::on_left_clicked()
{
//向左旋转
tutimer.stop();
QMatrix matrix;
matrix.rotate(90);
pix = pix.transformed(matrix,Qt::FastTransformation);
ui-> label->setPixmap(pix);
ui->label_4->setText("当前打开的图片为：");
ui->FileEdit->setText(imgpath[i]);//图片路径显示
}
void Photo::on_right_clicked()
{
//向右旋转
tutimer.stop();
QMatrix matrix;
matrix.rotate(-90);
pix = pix.transformed(matrix,Qt::FastTransformation);
ui-> label->setPixmap(pix);
ui->label_4->setText("当前打开的图片为：");
ui->FileEdit->setText(imgpath[i]);//图片路径显示
}
//用鼠标点击放大和缩小指定位置，这个是扩展功能
5：监控系统
#include "camera.h"
#include "ui_camera.h"
#include "nongyemainwindow.h"
int sta_ca=0;//判断摄像头的开启状态
Camera::Camera(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::Camera)
{
ui->setupUi(this);
connect(&mtimer, &QTimer::timeout, this, &Camera::update_time);
// 设置样式
ui->lcdNumber->setStyleSheet("background: blue;");
mtimer.start(1000);
/*
camera=new QCamera;//摄像头
viewfinder=new QCameraViewfinder(this);
imageCapture=new QCameraImageCapture(camera);//截图部件
camera->setViewfinder(viewfinder);
QObject::connect(ui->aButton,SIGNAL(clicked()),this,SLOT(ShowTheCapture()));
QObject::connect(ui->saveButton,SIGNAL(clicked()),this,SLOT(SavePicture()));
QObject::connect(imageCapture, SIGNAL(imageCaptured(int,QImage)), this, SLOT(displayImage(int,QImage)));
imageCapture->setCaptureDestination(QCameraImageCapture::CaptureToFile);
camera->setCaptureMode(QCamera::CaptureStillImage);
camera->setViewfinder(viewfinder);
*/
//this->setWindowIcon(QPixmap(":/img/camera.ico"));
ui->imglabel->setAlignment(Qt::AlignCenter);
ui->capButton->setEnabled(false);
//获取活动的摄像头设备名字（当然也可以获取设备描述）
QList<QCameraInfo> infos = QCameraInfo::availableCameras();
foreach (QCameraInfo info, infos) {
ui->deviceBox->addItem(info.deviceName());
}
// connect(ui->backBt, &QPushButton::clicked, this, &Camera::backBt_clicked);
//connect(ui->startBt, &QPushButton::clicked, this, &Camera::startBt_clicked);
//connect(ui->captureBt, &QPushButton::clicked, this, &Camera::captureBt_clicked);
}
Camera::~Camera()
{
delete qCapture;
delete qCfinder;
delete qCamera;
// qCamera->stop();
delete ui;
}
//返回主菜单
void Camera::on_pushButton_clicked()
{
if(sta_ca==1)//摄像头开启,就关闭
{
qCamera->stop();
sta_ca=0;//判断摄像头的开启状态
}
NongYeMainWindow *nyM = new NongYeMainWindow(this);
this->close();
nyM->show();
}
//显示时间
void Camera::update_time()
{
QString cur_time = QTime::currentTime().toString("hh:mm:ss");
ui->label_2->setText(cur_time);
QString cur_date = QDate::currentDate().toString("yyyy-MM-dd");
//qDebug()<
ui->lcdNumber->display(cur_date);
}
/*
void Camera::ShowTheCapture()
{
imageCapture->capture();
}
void Camera::displayImage(int ,QImage image)
{
//QImage image1(ui->label->x(),ui->label->y(),QImage::Format_RGB888);
// image=new QImage(220,220,QImage::Format_RGB888);
// image.setPixel(,Format_RGB888);
// QColor color(QImage::Format_RGB888);
// image.fill(color);
//QImage image2;
//QImage::Format format = image1.format();
//qDebug() << (int)format;
image=image.convertToFormat(QImage::Format_RGB888);
ui->label->setPixmap(QPixmap::fromImage(image));
QImage::Format format = image.format();
qDebug() << (int)format;
}
void Camera::SavePicture()
{
const QPixmap *pixmap = ui->imglabel->pixmap();
if(pixmap)
{
pixmap->save("C:\\Users\\Lamchiu\\Desktop\\hallo.jpg");
qDebug()<<"保存上了"<
void Camera::on_stopCa_clicked()
{
qCamera->stop();
sta_ca=0;//判断摄像头的开启状态
}
void Camera::on_startCa_clicked()
{
qCamera = new QCamera(ui->deviceBox->currentText().toUtf8(), this);
qCapture = new QCameraImageCapture(qCamera);
qCapture->setCaptureDestination(QCameraImageCapture::CaptureToFile);
qCamera->setCaptureMode(QCamera::CaptureStillImage);
connect(qCapture, &QCameraImageCapture::imageCaptured, this, &Camera::img_save);
qCfinder = new QCameraViewfinder(ui->widget);
qCfinder->resize(ui->widget->size());
qCamera->setViewfinder(qCfinder);
qCfinder->show();
qCamera->start();
sta_ca=1;//判断摄像头的开启状态
qCamera->searchAndLock(); //锁定，以便在图像捕捉发生时对焦并且设置与取景器没有不同
ui->capButton->setEnabled(true);
}
void Camera::on_capButton_clicked()
{
mtimer.stop();
QString pathname = QString("%1_%2.jpeg").arg(cur_date).arg(cur_time);
qDebug()<<pathname;
qCapture->capture(pathname); //捕捉图像
qCamera->unlock(); //解锁相机准备下一张照片
}
void Camera::img_save(int id, const QImage &preview)
{
qDebug()<<id;
QPixmap pix = QPixmap::fromImage(preview);
pix.scaled(ui->imglabel->size());
ui->imglabel->setPixmap(pix);
QString fileName = QFileDialog::getSaveFileName(this, tr("save file"), QDir::currentPath(), tr("jpegfile(*.jpg)"));
pix.save(fileName);
QMessageBox::information(this,"消息提示","照片保存成功！",QMessageBox::Ok);
// pix.save("C:\\Users\\Lamchiu\\Desktop\\hllo.jpg");
if(fileName.isEmpty()) {
QMessageBox::warning(this, "消息提示", "未检测到要保存的文件名字，已取消!", QMessageBox::Ok);
}
qDebug()<<"保存上了"<<endl;
mtimer.start(1000);
}
6：音乐播放器：
#include "bofangqi.h"
#include "ui_bofangqi.h"
#include "nongyemainwindow.h"
#include "QSlider"
#include "QMessageBox"
int current_x = 0, current_y = 0;
Bofangqi::Bofangqi(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::Bofangqi)
{
ui->setupUi(this);
connect(&mtimer, &QTimer::timeout, this, &Bofangqi::update_time);
// 设置样式
ui->lcdNumber->setStyleSheet("background: blue;");
mtimer.start(1000);
this->setWindowTitle("播放器");
this->setWindowIcon(QPixmap(":/img/player.ico"));
ui->playBt->setEnabled(false);
//connect(ui->backBt, &QPushButton::clicked, this, &Bofangqi::backBt_clicked);
connect(ui->openBt, &QPushButton::clicked, this, &Bofangqi::openFiles_clicked);
connect(ui->playBt, &QPushButton::clicked, this, &Bofangqi::playBt_clicked);
}
Bofangqi::~Bofangqi()
{
delete ui;
}
//返回主界面
void Bofangqi::on_pushButton_clicked()
{
NongYeMainWindow *nyM = new NongYeMainWindow(this);
this->close();
nyM->show();
//关闭正在播放的音乐
qMediaPlayer.stop();
}
//显示时间
void Bofangqi::update_time()
{
QString cur_time = QTime::currentTime().toString("hh:mm:ss");
ui->label_2->setText(cur_time);
QString cur_date = QDate::currentDate().toString("yyyy-MM-dd");
//qDebug()<
ui->lcdNumber->display(cur_date);
}
void Bofangqi::openFiles_clicked()
{
int k = 0;
//获取文件所在位置
QString path = QFileDialog::getExistingDirectory(this, tr("open dir"), QDir::currentPath(), QFileDialog::ShowDirsOnly|QFileDialog::DontResolveSymlinks);
//qDebug()<
QDir dir(path);
if (!dir.exists()) {
qDebug()<<path<<"不存在";
}
QStringList filters;
//设置过滤规则
filters<<QString("*.mp3");
dir.setFilter(QDir::Files|QDir::NoSymLinks);
dir.setNameFilters(filters);
QStringList list = dir.entryList();
for (it = list.begin(); it < list.end();it++) {
//qDebug()<<*it;
musicpath[k] = QString("%1/%2").arg(path).arg(*it);
qDebug()<<musicpath[k];
k++;
}
current_y = k-1;
if (current_y < 0) {
current_y = 0;
}
if (!musicpath->isEmpty()) {
ui->playBt->setEnabled(true);
}
QMessageBox::information(this,"消息提示","你指定的文件夹音乐打开成功！",QMessageBox::Ok);
ui->label->setText("请播放！");
ui->lineEdit->setText(musicpath[0]);//音乐路径显示
}
void Bofangqi::playBt_clicked()
{
if (qMediaPlayer.mediaStatus() == QMediaPlayer::NoMedia) {
qMediaPlayer.setMedia(QUrl::fromLocalFile(musicpath[current_x]));
ui->lineEdit->setText(musicpath[current_x]);//音乐路径显示
current_x++;
if (current_x > current_y) {
current_x = 0;
}
qMediaPlayer.play();
ui->playBt->setText("暂停");
ui->label->setText("正在播放！");
//判断是否有正在播放
}else if (qMediaPlayer.state() == QMediaPlayer::PlayingState) {
qMediaPlayer.pause();
ui->playBt->setText("继续");
ui->label->setText("暂停中！");
//没有歌曲正在
}else {
qMediaPlayer.play();
ui->playBt->setText("暂停");
ui->label->setText("正在播放！");
}
}
//上一首
void Bofangqi::on_nextBt_clicked()
{
current_x--;
if (current_x < 0) {
current_x = current_y;
}
qMediaPlayer.setMedia(QUrl::fromLocalFile(musicpath[current_x]));
qMediaPlayer.play();
ui->lineEdit->setText(musicpath[current_x]);//音乐路径显示
ui->label->setText("正在播放！");
}
void Bofangqi::on_prevBt_clicked()
{
//下一首
current_x++;
if (current_x > current_y) {
current_x = 0;
}
qMediaPlayer.setMedia(QUrl::fromLocalFile(musicpath[current_x]));
qMediaPlayer.play();
ui->lineEdit->setText(musicpath[current_x]);//音乐路径显示
ui->label->setText("正在播放！");
}
QSlider *qSlider;
//快退
void Bofangqi::on_QianJing_clicked()
{
ui->lineEdit->setText(musicpath[current_x]);//音乐路径显示
ui->label->setText("正在播放！");
//qSlider->triggerAction(QSlider::SliderPageStepAdd);
qint64 position=qMediaPlayer.position();
qDebug()<<"position"<<position;
position=position-5000;
ui->progressBar->setValue(position/1000);
qMediaPlayer.setPosition(position);//如果滑块改变位置，则改变音乐进度
}
void Bofangqi::on_HouTui_clicked()//快进
{
ui->lineEdit->setText(musicpath[current_x]);//音乐路径显示
ui->label->setText("正在播放！");
// qSlider->triggerAction(QSlider::SliderPageStepSub);
qint64 position=qMediaPlayer.position();
qDebug()<<"position"<<position;
position=position+5000;
ui->progressBar->setValue(position/1000);
qMediaPlayer.setPosition(position);//如果滑块改变位置，则改变音乐进度
ui->lineEdit->setText(musicpath[current_x]);//音乐路径显示
ui->label->setText("正在播放！");
}
7：视频播放器：
#include "video.h"
#include "ui_video.h"
#include "QMessageBox"
#include "nongyemainwindow.h"
#include 
到这整个基于qt开发的智能系统：电子相册，监控摄像头模块，音乐播放器，视频播放器，电子时钟
智能嵌入式系统介绍完，里面还有很多小的处理模块，就不一一赘述，感兴趣的小伙伴，可以移步本人开发的的完整项目源码：已共享项目源码，需要自取
感谢感谢！！！！