本文已参与「新人创作礼」活动，一起开启掘金创作之路。

HMI-38-【节能模式】中心仪表mini仪表速度表实现

今天我们来做中心仪表的mini仪表中的车速表，就是三个数字显示，数字素材因为我的艺术家给我设计的时候，偷懒了，没有用下图中的字体，还是沿用了运动和舒适模式中的字体，咱们就将就的用吧，没有办法呀，咱也不会搞美术呀。

当前进度

当前进度如下，今天在原来的基础上，实现了中心mini仪表的车速模拟，顺带手把限速表也做了，就是一个背景加上一个数字。

HMI-38-【节能模式】中心仪表mini仪表速度表实现当前进度Mini仪表转速表实现限速表实现第二阶段成果展示第一阶段成果展示

关键字： HIMI、QPainter、Qt、drawPixmap、eco

Mini仪表转速表实现

转速表实现其实非常加单，完全可以借鉴舒适模式中的实现模式，这次我对数字素材做了加工，更加简单的，简单粗暴换图片即可，代码如下：

void MDE_CenterMini::setCarSpeed(int speed)
{
    int one = speed % 10;
    int ten = speed /10 % 10;;
    int hunderd = speed /100;

    if(speed <10)
    {
        ui->label_one->setGeometry(150,140,120,86);
        ui->label_one->show();
        ui->label_ten->hide();
        ui->label_hundred->hide();
        switch (one) {
        default:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 0:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 1:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/1.png);}");
            break;
        }
        case 2:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/2.png);}");
            break;
        }
        case 3:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/3.png);}");
            break;
        }
        case 4:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/4.png);}");
            break;
        }
        case 5:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/5.png);}");
            break;
        }
        case 6:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/6.png);}");
            break;
        }
        case 7:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/7.png);}");
            break;
        }
        case 8:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/8.png);}");
            break;
        }
        case 9:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/9.png);}");
            break;
        }
        }
    }
    else if(speed >= 10 && speed < 100)
    {
        ui->label_one->setGeometry(200,140,120,86);
        ui->label_ten->setGeometry(100,140,120,86);
        ui->label_one->show();
        ui->label_ten->show();
        ui->label_hundred->hide();
        switch (one) {
        default:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 0:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 1:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/1.png);}");
            break;
        }
        case 2:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/2.png);}");
            break;
        }
        case 3:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/3.png);}");
            break;
        }
        case 4:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/4.png);}");
            break;
        }
        case 5:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/5.png);}");
            break;
        }
        case 6:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/6.png);}");
            break;
        }
        case 7:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/7.png);}");
            break;
        }
        case 8:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/8.png);}");
            break;
        }
        case 9:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/9.png);}");
            break;
        }
        }
        switch (ten) {
        default:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 0:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 1:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/1.png);}");
            break;
        }
        case 2:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/2.png);}");
            break;
        }
        case 3:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/3.png);}");
            break;
        }
        case 4:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/4.png);}");
            break;
        }
        case 5:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/5.png);}");
            break;
        }
        case 6:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/6.png);}");
            break;
        }
        case 7:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/7.png);}");
            break;
        }
        case 8:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/8.png);}");
            break;
        }
        case 9:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/9.png);}");
            break;
        }
        }
    }
    else if(speed >= 100 && speed < 1000)
    {
        ui->label_one->setGeometry(250,140,120,86);
        ui->label_ten->setGeometry(150,140,120,86);
        ui->label_hundred->setGeometry(50,140,120,86);
        ui->label_one->show();
        ui->label_ten->show();
        ui->label_hundred->show();
        switch (one) {
        default:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 0:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 1:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/1.png);}");
            break;
        }
        case 2:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/2.png);}");
            break;
        }
        case 3:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/3.png);}");
            break;
        }
        case 4:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/4.png);}");
            break;
        }
        case 5:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/5.png);}");
            break;
        }
        case 6:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/6.png);}");
            break;
        }
        case 7:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/7.png);}");
            break;
        }
        case 8:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/8.png);}");
            break;
        }
        case 9:
        {
            ui->label_one->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/9.png);}");
            break;
        }
        }
        switch (ten) {
        default:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 0:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 1:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/1.png);}");
            break;
        }
        case 2:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/2.png);}");
            break;
        }
        case 3:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/3.png);}");
            break;
        }
        case 4:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/4.png);}");
            break;
        }
        case 5:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/5.png);}");
            break;
        }
        case 6:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/6.png);}");
            break;
        }
        case 7:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/7.png);}");
            break;
        }
        case 8:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/8.png);}");
            break;
        }
        case 9:
        {
            ui->label_ten->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/9.png);}");
            break;
        }
        }
        switch (hunderd) {
        default:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 0:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/0.png);}");
            break;
        }
        case 1:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/1.png);}");
            break;
        }
        case 2:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/2.png);}");
            break;
        }
        case 3:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/3.png);}");
            break;
        }
        case 4:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/4.png);}");
            break;
        }
        case 5:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/5.png);}");
            break;
        }
        case 6:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/6.png);}");
            break;
        }
        case 7:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/7.png);}");
            break;
        }
        case 8:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/8.png);}");
            break;
        }
        case 9:
        {
            ui->label_hundred->setStyleSheet("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/9.png);}");
            break;
        }
        }
    }
}

这个代码是又臭又长，不过到时好理解哈，下面我给他升级一下(也不难懂哈)：

void MDE_CenterMini::setCarSpeed(int speed)
{
    int one = speed % 10;
    int ten = speed /10 % 10;;
    int hunderd = speed /100;

    if(speed <10)
    {
        ui->label_one->setGeometry(150,140,120,86);
        ui->label_one->show();
        ui->label_ten->hide();
        ui->label_hundred->hide();
        ui->label_one->setStyleSheet(QString("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/%1.png);}").arg(one));
    }
    else if(speed >= 10 && speed < 100)
    {
        ui->label_one->setGeometry(200,140,120,86);
        ui->label_ten->setGeometry(100,140,120,86);
        ui->label_one->show();
        ui->label_ten->show();
        ui->label_hundred->hide();
        ui->label_one->setStyleSheet(QString("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/%1.png);}").arg(one));
        ui->label_ten->setStyleSheet(QString("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/%1.png);}").arg(ten));

    }
    else if(speed >= 100 && speed < 1000)
    {
        ui->label_one->setGeometry(250,140,120,86);
        ui->label_ten->setGeometry(150,140,120,86);
        ui->label_hundred->setGeometry(50,140,120,86);
        ui->label_one->show();
        ui->label_ten->show();
        ui->label_hundred->show();
        ui->label_one->setStyleSheet(QString("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/%1.png);}").arg(one));
        ui->label_ten->setStyleSheet(QString("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/%1.png);}").arg(ten));
        ui->label_hundred->setStyleSheet(QString("QLabel{border-image:url(:/Economic/Resources/MeterDisplay/Economic/Number/%1.png);}").arg(hunderd));
    }
}

限速表实现

限速表实现就更简单了，就是两个label，一个用来做背景，一个用来做数字显示，直接上接口实现：

void MDE_Center::setSpeedLimit(int speed, bool visable)
{
    if(visable)
    {
        ui->label_speedlimit_number->show();
        ui->label_speedlimit_back->show();
        ui->label_speedlimit_number->setText(QString::number(speed,10));
    }
    else
    {
        ui->label_speedlimit_number->hide();
        ui->label_speedlimit_back->hide();
        ui->label_speedlimit_number->setText(QString::number(speed,10));
    }
}

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-player.bilibili.com/player.html…img-blog.csdnimg.cn/img_convert…基于Qt的汽车仪表模拟 2.0)]

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-player.bilibili.com/player.html…img-blog.csdnimg.cn/img_convert…基于Qt的汽车仪表模拟 1.0))]

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。

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有**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。