HMI-52-多媒体音乐播放器 1

Posted 2022-04-28 DreamLife.

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HMI-52-【多媒体】音乐播放器 1

今天我们搞音乐播放器，哎嗨，这个东西要是往细碎了搞，事情还真不少，今天就先努力实现面上的内容。

当前进度

当前实现了多媒体下的五个子菜单切换，和返回主页按钮，也就是左下角的DLlogo,如下图所示。

文章目录

HMI-52-【多媒体】音乐播放器 1
当前进度
绘制背景
实现返回主菜单按钮
完成样式设置
在主程序中连入信号槽

实现三种媒体模式切换
实现五中模式切换
第三阶段成果展示
第二阶段成果展示
第一阶段成果展示

关键字： HMI、Multifunction、Qt、qml、QQuickWidget

绘制背景

绘制背景，UI中的背景可以用来布局了，运行的时候回隐藏。

void MFD_Multimedia::paintEvent(QPaintEvent *event)

    Q_UNUSED(event)
    QPainter painter;
    painter.begin(this);
    painter.drawPixmap(0,0,width(),height(), QPixmap(":/Multimedia/Resources/MultifunctionDisplay/Multimedia/mainback.png"));               // 绘制背景
    painter.end();

实现返回主菜单按钮

这里我们放个按钮就可以，这是一个样式，就完事了。代码如下：

完成样式设置

    ui->pushButton_menu->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/menu.png);"
                                       "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/menu_1.png);");

在槽函数里面发送信号

void MFD_Multimedia::on_pushButton_menu_clicked()

    emit signal_returnToMenu();

在主程序中连入信号槽

在主程序代码中连入信号槽。

void MultifunctionDisplay::initMultimedia()

    QGridLayout* pg=new QGridLayout;
    pg->setMargin(0);
    pg->setSpacing(0);
    m_Multimedia = new MFD_Multimedia(ui->tab_multimedia);
    pg->addWidget(m_Multimedia);
    ui->tab_multimedia->setLayout(pg);
    connect(m_Multimedia,&MFD_Multimedia::signal_returnToMenu,this,[=]()ui->tabWidget_mainFrame->setCurrentIndex(0););

实现三种媒体模式切换

这个也很简单，首先界面上面就是3个按钮。如下图所示，这里不要在乎重影，程序启动就没有了

实现五中模式切换

在前面搞错，其实有五种模式，所以这里还是重新实现一下吧，上面的流水账就不删除了。搞五个按钮。界面就完成了

代码部分需要实现按钮样式的切换，和响应五个按钮的超函数，这里为了简单，就放一起了。

void MFD_Multimedia::setMultimedia_Type(int index)

    switch (index) 
    case 0:
        ui->pushButton_usbMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_1.png);");

        ui->pushButton_usbVideo->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_2.png);"
                                                     "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);");

        ui->pushButton_netMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);");

        ui->pushButton_picture->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_2.png);"
                                              "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_1.png);");

        break;
    case 1:
        ui->pushButton_usbMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_1.png);");

        ui->pushButton_usbVideo->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_2.png);"
                                                     "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);");

        ui->pushButton_netMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);");

        ui->pushButton_picture->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_2.png);"
                                              "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_1.png);");
        break;
    case 2:
        ui->pushButton_usbMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_1.png);");

        ui->pushButton_usbVideo->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic.png);"
                                                     "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);");

        ui->pushButton_netMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);");

        ui->pushButton_picture->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_2.png);"
                                              "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_1.png);");
        break;

    case 3:
        ui->pushButton_usbMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_1.png);");

        ui->pushButton_usbVideo->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_2.png);"
                                                     "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);");

        ui->pushButton_netMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);");

        ui->pushButton_picture->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_2.png);"
                                              "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_1.png);");
        break;

    case 4:
        ui->pushButton_usbMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_1.png);");

        ui->pushButton_usbVideo->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_2.png);"
                                                     "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);");

        ui->pushButton_netMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);");

        ui->pushButton_picture->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture.png);"
                                              "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_1.png);");
        break;
    default:
        ui->pushButton_usbMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_1.png);");

        ui->pushButton_usbVideo->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_2.png);"
                                                     "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);");

        ui->pushButton_netMusic->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_2.png);"
                                               "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);");

        ui->pushButton_picture->setStyleSheet("QPushButtonborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_2.png);"
                                              "QPushButton:pressedborder-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_1.png);");
        break;
        break;
    





void MFD_Multimedia::on_pushButton_menu_clicked()

    emit signal_returnToMenu();



void MFD_Multimedia::on_pushButton_usbMusic_clicked()

    mMultimedia_Type = 0;
    setMultimedia_Type(mMultimedia_Type);



void MFD_Multimedia::on_pushButton_usbVideo_clicked()

    mMultimedia_Type = 1;
    setMultimedia_Type(mMultimedia_Type);



void MFD_Multimedia::on_pushButton_bluetoothMusic_clicked()

    mMultimedia_Type = 2;
    setMultimedia_Type(mMultimedia_Type);



void MFD_Multimedia::on_pushButton_netMusic_clicked()

    mMultimedia_Type = 3;
    setMultimedia_Type(mMultimedia_Type);



void MFD_Multimedia::on_pushButton_picture_clicked()

    mMultimedia_Type = 4;
    setMultimedia_Type(mMultimedia_Type);

今天先搞到这里。

第三阶段成果展示

目前已完成液晶仪表三种模式的初步显示，小模块后期根据精力更新了，主要还得找美术来搞资源，自己能力不够。暂未跟新计划。展示如下：

基于Qt的汽车仪表模拟 3.0

B站链接：https://www.bilibili.com/video/BV1WS4y137y1/

第二阶段成果展示

目前以完成HUD界面及接口开发，液晶仪表舒适模式和运动模式的开发。展示如下：

基于Qt的汽车仪表模拟 2.0

B站链接：https://www.bilibili.com/video/BV1aq4y1t7H7/

第一阶段成果展示

目前以完成HUD界面及接口开发，液晶仪表舒适模式开发。展示如下：

基于Qt的汽车仪表模拟 1.0)

B站链接：https://www.bilibili.com/video/BV1qJ411X7Gs/

说明：

本项目中所使借鉴原型来自：[吉利] 博瑞GE | 仪表HMI设计、吉利汽车HMI项目。

多媒体部分是来自吉利博瑞2017旗舰版界面所有权和解释权都归吉利汽车所有。

设计图的所有权和解释权都归吉利汽车所有。

本项目所有资源文件均由**打不死的小海**复刻制作。

本项目代码暂时不会开源，有需要的源码的可与我联系，左上角二维码加微信。

本项目仅限学习交流、禁止商业使用。

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