iot/labs/CameraCard/CameraCard/MainForm.cs

using System;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.IO;
using System.Reflection;
using System.Windows.Forms;

namespace CameraCard
{
    public partial class MainForm : Form
    {
        private ICameraHelper _cameraHelper = new AForgeCameraHelper();

        private CVRHelper _cvrHelper = new CVRHelper();

        public MainForm()
        {
            InitializeComponent();
            this.versionLabel.Alignment = ToolStripItemAlignment.Right;
            this.versionLabel.Text += Assembly.GetExecutingAssembly().GetName().Version.ToString();
        }

        private void MainFrom_Load(object sender, EventArgs e)
        {
            //截图
            this.CreateRect();
            //摄像头预览
            this._cameraHelper.OnCameraChange = o =>
            {
                this.Invoke(new Action(() =>
                {
                    this.cameraSelector.Items.Clear();
                    this.cameraSelector.Text = string.Empty;
                    foreach (var item in o)
                    {
                        this.cameraSelector.Items.Add(item);
                    }
                    if (this.cameraSelector.Items.Count > 0)
                    {
                        this.cameraSelector.SelectedIndex = 0;
                    }
                    else
                    {
                        this.cameraSelector.Text = "没有检测到USB摄像头";
                    }
                }));
            };
            this._cameraHelper.OnFrame = o =>
            {
                cameraRender.Image?.Dispose();
                cameraRender.Image = o;
            };
            this.cameraSelector.SelectedIndexChanged += new EventHandler((s, o) =>
            {
                this._cameraHelper.SwitchCamera((s as ComboBox).SelectedIndex);
            });
            this._cameraHelper.Start();
            //身份读卡器
            this._cvrHelper.OnConnect = new Action<bool>(o =>
            {
                this.Invoke(new Action(() =>
                {
                    this.statusLabel.Text = o ? "读卡器已连接" : "读卡器未连接";
                }));
            });
            this._cvrHelper.OnRead = new Action<IdCardModel>(o =>
            {
                this.Invoke(new Action(() =>
                {
                    this.UpdateIdCardUI(o);
                }));
            });
            this._cvrHelper.Start();
        }

        private void cameraSelector_SelectedIndexChanged(object sender, EventArgs e)
        {
            this._cameraHelper.SwitchCamera(this.cameraSelector.SelectedIndex);
        }

        private int _rectWidth = 351;
        private int _rectHeight = 448;
        private int _photoWidth;
        private int _photoHeight;
        private Rectangle _rect;
        private Pen _pen;

        private void CreateRect()
        {
            this._photoWidth = 351;
            this._photoHeight = 448;
            this._rectWidth = this._photoWidth / 2;
            this._rectHeight = this._photoHeight / 2;
            //
            var x = this.cameraRender.Width / 2 - this._rectWidth / 2;
            var y = this.cameraRender.Height / 2 - this._rectHeight / 2;
            this._rect = new Rectangle(x, y, _rectWidth, _rectHeight);
            this._pen = new Pen(Color.Green);
            this._pen.DashStyle = DashStyle.Dash;
        }

        private void cameraRender_Paint(object sender, PaintEventArgs e)
        {
            e.Graphics.DrawRectangle(this._pen, _rect);
        }

        private void shotBtn_Click(object sender, EventArgs e)
        {
            using (var bitmap = (this.cameraRender.Image.Clone() as Image))
            {
                using (var bitmap2 = bitmap.ClipImage(this.cameraRender.Width, this.cameraRender.Height, this._rectWidth, this._rectHeight))
                {
                    this.photo.Image?.Dispose();
                    this.photo.Image = bitmap2.ResizeImage(this._photoWidth, this._photoHeight);
                    var base64Value = $"data:image/jpeg;base64,{this.photo.Image.ToBase64()}";
                }
            }
        }

        private void UpdateIdCardUI(IdCardModel model)
        {
            this.idcPicture.Image?.Dispose();
            this.idcPicture.Image = model.Image;
            if (model.Type == "居民身份证")
            {
                this.idcAddressLabel.Visible = true;
                this.idcAddressValue.Visible = true;
                this.idcCnNameLabel.Visible = false;
                this.idcCnNameValue.Visible = false;
                this.idcAddressLabel.Visible = true;
                this.idcAddressValue.Visible = true;
                this.idcAddressValue.Text = model.Address;
                this.idcNameLable.Text = "民族：";
                this.idcNationCodeLabel.Text = "民族代码：";
                this.idcIdCardNoLabel.Text = "身份证号";
            }
            else
            {
                this.idcAddressLabel.Visible = false;
                this.idcAddressValue.Visible = false;
                this.idcCnNameLabel.Visible = true;
                this.idcCnNameValue.Visible = true;
                this.idcAddressLabel.Visible = false;
                this.idcAddressValue.Visible = false;
                this.idcCnNameValue.Text = model.CnName;
                this.idcNameLable.Text = "国籍：";
                this.idcNationCodeLabel.Text = "国籍代码：";
                this.idcIdCardNoLabel.Text = "证件号码";
            }
            this.idcNameValue.Text = model.Name;
            this.idcSexValue.Text = model.Sex;
            this.idcNationValue.Text = model.Nation;
            this.idcNationCodeValue.Text = model.NationCode;
            this.idcBirthdayValue.Text = model.Birthday;
            this.idcIdCardNoValue.Text = model.IdCardNo;
            this.idcDepartmentValue.Text = model.Department;
            this.idcValidDateValue.Text = $"{model.ValidDateStart}-{model.ValidDateEnd}";
            this.idcSamIDValue.Text = model.SamID;
        }

        private void checkUpdate_Click(object sender, EventArgs e)
        {
            var file = Path.Combine(Application.StartupPath, "AutoUpdate.exe");
            var file2 = Path.Combine(Application.StartupPath, "update.exe");
            File.Copy(file, file2, true);
            var info = new ProcessStartInfo
            {
                FileName = file2,
                Arguments = Application.ExecutablePath,
                WorkingDirectory = Application.StartupPath
            };
            Process.Start(info);
        }

        //closeing
        private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            this._cameraHelper.Dispose();
            this._pen.Dispose();
        }
    }
}