---

前言

本篇文章来完成另外三个界面的布局设置。

这里会使用到 feiyangqingyun的一些控件库。

一、温度湿度曲线布局

TempHumtiy.h:

#ifndef TEMPHUMTIY_H
#define TEMPHUMTIY_H

#include <QWidget>
#include "wavechart.h"

namespace Ui {
class TempHumtiy;
}

class TempHumtiy : public QWidget
{
    Q_OBJECT

    WaveChart* TempWave;//温度曲线
    WaveChart* HumityWave;//湿度曲线

public:
    explicit TempHumtiy(QWidget *parent = nullptr);
    ~TempHumtiy();

private:
    Ui::TempHumtiy *ui;
};

#endif // TEMPHUMTIY_H

TempHumtiy.cpp:

#include "TempHumtiy.h"
#include "ui_TempHumtiy.h"
#include <QVBoxLayout>

TempHumtiy::TempHumtiy(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::TempHumtiy)
{
    ui->setupUi(this);

    QVBoxLayout* vlaout = new QVBoxLayout(this);

    //温度曲线
    TempWave = new WaveChart();
    TempWave->setTitle("温度曲线");

    //湿度曲线
    HumityWave = new WaveChart();
    HumityWave->setTitle("温度曲线");

    vlaout->addWidget(TempWave);
    vlaout->addWidget(HumityWave);
}

TempHumtiy::~TempHumtiy()
{
    delete ui;
}

运行效果：

二、环境监测界面布局

Illumination.h:

#include "Illumination.h"
#include "ui_Illumination.h"
#include <QHBoxLayout>
#include <QLabel>
#include <QFont>
#include <QPalette>

Illumination::Illumination(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Illumination)
{
    ui->setupUi(this);

    QFont font("Arial", 20);
    QPalette palette;
    palette.setColor(QPalette::WindowText, Qt::white);

    QLabel* label1 = new QLabel("烟雾浓度");
    label1->setFont(font);
    label1->setPalette(palette);
    label1->setAlignment(Qt::AlignCenter);


    QLabel* label2 = new QLabel("光照强度");
    label2->setFont(font);
    label2->setPalette(palette);
    label2->setAlignment(Qt::AlignCenter);


    QLabel* label3 = new QLabel("Co2浓度");
    label3->setFont(font);
    label3->setPalette(palette);
    label3->setAlignment(Qt::AlignCenter);


    QHBoxLayout* hlayout = new QHBoxLayout();
    QHBoxLayout* hlayout1 = new QHBoxLayout();
    QVBoxLayout* vlayout = new QVBoxLayout(this);

    hlayout1->addWidget(label1);
    hlayout1->addWidget(label2);
    hlayout1->addWidget(label3);

    /* 烟雾浓度 */
    Smoke = new ProgressPercent();
    Smoke->setValue(20);
    Smoke->setUsedColor(QColor(255, 127, 39));
    Smoke->setPercentStyle(ProgressPercent::PercentStyle_Arc_Wave);


    /* 光照强度 */
    IllCent = new ProgressPercent();
    IllCent->setValue(15);
    IllCent->setUsedColor(QColor(237, 201, 14));
    IllCent->setPercentStyle(ProgressPercent::PercentStyle_Arc_Wave);

    /* Co2 */
    Co2 = new ProgressPercent();
    Co2->setValue(25);
    Co2->setUsedColor(QColor(237, 28, 36));
    Co2->setPercentStyle(ProgressPercent::PercentStyle_Arc_Wave);

    hlayout->addWidget(Smoke);
    hlayout->addWidget(IllCent);
    hlayout->addWidget(Co2);

    vlayout->addStretch();
    vlayout->addLayout(hlayout);
    vlayout->addLayout(hlayout1);
    vlayout->addStretch();
}

Illumination::~Illumination()
{
    delete ui;
}

Illumination.cpp:

#include "Illumination.h"
#include "ui_Illumination.h"
#include <QHBoxLayout>
#include <QLabel>
#include <QFont>
#include <QPalette>

Illumination::Illumination(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Illumination)
{
    ui->setupUi(this);

    QFont font("Arial", 20);
    QPalette palette;
    palette.setColor(QPalette::WindowText, Qt::white);

    QLabel* label1 = new QLabel("烟雾浓度");
    label1->setFont(font);
    label1->setPalette(palette);
    label1->setAlignment(Qt::AlignCenter);


    QLabel* label2 = new QLabel("光照强度");
    label2->setFont(font);
    label2->setPalette(palette);
    label2->setAlignment(Qt::AlignCenter);


    QLabel* label3 = new QLabel("Co2浓度");
    label3->setFont(font);
    label3->setPalette(palette);
    label3->setAlignment(Qt::AlignCenter);


    QHBoxLayout* hlayout = new QHBoxLayout();
    QHBoxLayout* hlayout1 = new QHBoxLayout();
    QVBoxLayout* vlayout = new QVBoxLayout(this);

    hlayout1->addWidget(label1);
    hlayout1->addWidget(label2);
    hlayout1->addWidget(label3);

    /* 烟雾浓度 */
    Smoke = new ProgressPercent();
    Smoke->setValue(20);
    Smoke->setUsedColor(QColor(255, 127, 39));
    Smoke->setPercentStyle(ProgressPercent::PercentStyle_Arc_Wave);


    /* 光照强度 */
    IllCent = new ProgressPercent();
    IllCent->setValue(15);
    IllCent->setUsedColor(QColor(237, 201, 14));
    IllCent->setPercentStyle(ProgressPercent::PercentStyle_Arc_Wave);

    /* Co2 */
    Co2 = new ProgressPercent();
    Co2->setValue(25);
    Co2->setUsedColor(QColor(237, 28, 36));
    Co2->setPercentStyle(ProgressPercent::PercentStyle_Arc_Wave);

    hlayout->addWidget(Smoke);
    hlayout->addWidget(IllCent);
    hlayout->addWidget(Co2);

    vlayout->addStretch();
    vlayout->addLayout(hlayout);
    vlayout->addLayout(hlayout1);
    vlayout->addStretch();
}

Illumination::~Illumination()
{
    delete ui;
}

运行效果:

三、摄像头界面布局

将QWidget提升为QVideoWidget,这个界面用于显示摄像头的图形。

Camera.h:

#ifndef CAMERA_H
#define CAMERA_H

#include <QWidget>
#include <QCamera>
#include <QVideoWidget>
#include <QMediaCaptureSession>
#include <QMediaDevices>

namespace Ui {
class Camera;
}

class Camera : public QWidget
{
    Q_OBJECT

    // 设置摄像机
    QCamera* camera;
    // 媒体会话
    QMediaCaptureSession* captureSession;

public:
    explicit Camera(QWidget *parent = nullptr);
    ~Camera();

private:
    Ui::Camera *ui;
};

#endif // CAMERA_H

Camera.cpp:

#include "Camera.h"
#include "ui_Camera.h"

Camera::Camera(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Camera)
{
    ui->setupUi(this);

    // 默认的视频输入设备
    QCameraDevice defaultVideoInput = QMediaDevices::defaultVideoInput();
    // 设置摄像机
    camera = new QCamera(QMediaDevices::defaultVideoInput());
    // 媒体会话
    captureSession = new QMediaCaptureSession();

    captureSession->setCamera(camera);
    captureSession->setVideoOutput(ui->widget);

    camera->start();

}

Camera::~Camera()
{
    delete ui;
}

运行效果：

总结

本篇文章就讲解到这里。