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。

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("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/menu.png);}"
                                       "QPushButton:pressed{border-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("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_1.png);}");

        ui->pushButton_usbVideo->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);}");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_2.png);}"
                                                     "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);}");

        ui->pushButton_netMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);}");

        ui->pushButton_picture->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_2.png);}"
                                              "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_1.png);}");

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

        ui->pushButton_usbVideo->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);}");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_2.png);}"
                                                     "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);}");

        ui->pushButton_netMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);}");

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

        ui->pushButton_usbVideo->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);}");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic.png);}"
                                                     "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);}");

        ui->pushButton_netMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);}");

        ui->pushButton_picture->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_2.png);}"
                                              "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_1.png);}");
        break;

    case 3:
        ui->pushButton_usbMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_1.png);}");

        ui->pushButton_usbVideo->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);}");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_2.png);}"
                                                     "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);}");

        ui->pushButton_netMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);}");

        ui->pushButton_picture->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_2.png);}"
                                              "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_1.png);}");
        break;

    case 4:
        ui->pushButton_usbMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbMusic_1.png);}");

        ui->pushButton_usbVideo->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);}");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_2.png);}"
                                                     "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);}");

        ui->pushButton_netMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);}");

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

        ui->pushButton_usbVideo->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/usbVideo_1.png);}");

        ui->pushButton_bluetoothMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_2.png);}"
                                                     "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/bluetoothMusic_1.png);}");

        ui->pushButton_netMusic->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_2.png);}"
                                               "QPushButton:pressed{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/netMusic_1.png);}");

        ui->pushButton_picture->setStyleSheet("QPushButton{border-image: url(:/Multimedia/Resources/MultifunctionDisplay/Multimedia/picture_2.png);}"
                                              "QPushButton:pressed{border-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：

[video(video-yznBr6e3-1648369267384)(type-bilibili)(url-https://player.bilibili.com/player.html?aid=679609061)(image-https://img-blog.csdnimg.cn/img_convert/4d157e1cb316b007a2cb9790cb2dbfde.png)(title-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：

[video(video-2AqJ88TY-1645273728489)(type-bilibili)(url-https://player.bilibili.com/player.html?aid=594179292)(image-https://img-blog.csdnimg.cn/img_convert/e75563c3ce68bc980547dde8f6e265ba.png)(title-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：

[video(video-ArCvRvBQ-1642664938100)(type-bilibili)(url-https://player.bilibili.com/player.html?aid=77197267)(image-https://img-blog.csdnimg.cn/img_convert/ccddd04e0cef191fd33d7f58d41adb24.png)(title-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。