WPF+Halcon 培训项目实战(11):HS组件封装

文章目录

前言
相关链接
项目专栏
运行环境
匹配图片
封装组件
- 新增类库项目
- 选择依赖顺序并添加Nuget
- 修改原本矩形方法
- 运行结果：
对矩形进行抽象封装
- 抽象基类
- 矩形抽象改造
圆形抽象封装
- 代码
- 运行结果

前言

为了更好地去学习WPF+Halcon，我决定去报个班学一下。原因无非是想换个工作。相关的教学视频来源于下方的Up主的提供的教程。这里只做笔记分享，想要源码或者教学视频可以和他联系一下。

项目专栏

WPF+Halcon实战项目

运行环境

.net core 8.0
visual studio 2022
halcon HDevelop 20.11
windows 11

匹配图片

在这里插入图片描述

封装组件

Halcon官方的代码很多都是基于String的类型判断，我们要对Halcon的代码进行一步简单的封装。

新增类库项目

在这里插入图片描述

选择依赖顺序并添加Nuget

让我们的WPF主程序依赖于HalconExtension类库

在这里插入图片描述

添加Nuget

在这里插入图片描述

修改原本矩形方法

原来的方法

             // 显示绘制图案
             HalconWindow.HalconWindow.AttachDrawingObjectToWindow(rect);
             // 去除绘制图案
             //HalconWindow.HalconWindow.DetachDrawingObjectFromWindow(rect);

             rect.OnDrag(new HDrawingObject.HDrawingObjectCallbackClass((id, window, type) =>
             {
                 var hv_type = id.GetDrawingObjectParams("type");
                 var row1 = id.GetDrawingObjectParams("row1");
                 var row2 = id.GetDrawingObjectParams("row2");
                 var column1 = id.GetDrawingObjectParams("column1");
                 var column2 = id.GetDrawingObjectParams("column2");
                 //打印坐标
                 NLogHelper.Debug($"拖动事件: {hv_type}:{row1} {column1} {row2} {column2} ");
             }));

现在的方法：

using HalconDotNet;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HalconExtension.Models
{
    /// <summary>
    /// 矩形封装
    /// </summary>
    public class HRectangleObj
    {
        public HTuple HType { get; private set; }
        public HTuple Row1 { get; private set; }
        public HTuple Row2 { get; private set; }
        public HTuple Column1 { get; private set; }
        public HTuple Column2 { get; private set; }
        public HDrawingObject DrawingObject { get; set; }
        /// <summary>
        /// HS组件主题
        /// </summary>
        public HSmartWindowControlWPF WindowControlWPF { get; set; }


        public Action<HRectangleObj> RefleshCallBack { get; set; }

        /// <summary>
        /// 初始化构造函数
        /// </summary>
        /// <param name="windowControlWPF"></param>
        /// <param name="row1"></param>
        /// <param name="column1"></param>
        /// <param name="row2"></param>
        /// <param name="column2"></param>
        public HRectangleObj(HSmartWindowControlWPF windowControlWPF,HTuple row1,HTuple column1,HTuple row2,HTuple column2)
        {
            WindowControlWPF = windowControlWPF;
            Row1 = row1;
            Column1 = column1;
            Row2 = row2;
            Column2 = column2;
            DrawingObject = HDrawingObject.CreateDrawingObject(HDrawingObject.HDrawingObjectType.RECTANGLE1,Row1,Column1,Row2,Column2);
        }

        /// <summary>
        /// 默认构造函数
        /// </summary>
        /// <param name="windowControl"></param>
        public HRectangleObj(HSmartWindowControlWPF windowControl)
        {
            WindowControlWPF = windowControl;
            Row1 = 0;
            Column1 = 0;
            Row2 = 100;
            Column2 = 100;
            DrawingObject = HDrawingObject.CreateDrawingObject(HDrawingObject.HDrawingObjectType.RECTANGLE1, Row1, Column1, Row2, Column2);
            
            //添加更新事件
            DrawingObject.OnDrag(Reflash);
            DrawingObject.OnResize(Reflash);
        }


        /// <summary>
        /// 显示图像
        /// </summary>
        public void Show()
        {
            WindowControlWPF.HalconWindow.AttachDrawingObjectToWindow(DrawingObject);
        }


        /// <summary>
        /// 分离图像
        /// </summary>
        public void Close()
        {
            WindowControlWPF.HalconWindow.DetachDrawingObjectFromWindow(DrawingObject);
        }

        /// <summary>
        /// 序列化输出
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {

            return JsonConvert.SerializeObject(new
            {
                type = HType.ToString(),
                row1 = TwoDecimalPlaces(Row1),
                column1 = TwoDecimalPlaces(Column1),
                row2 = TwoDecimalPlaces(Row2),
                column2 = TwoDecimalPlaces(Column2)
            });
        }

        public void Reflash(HDrawingObject drawid, HWindow window, string type)
        {
            HType = drawid.GetDrawingObjectParams("type");
            Row1 = drawid.GetDrawingObjectParams("row1");
            Row2 = drawid.GetDrawingObjectParams("row2");
            Column1 = drawid.GetDrawingObjectParams("column1");
            Column2 = drawid.GetDrawingObjectParams("column2");

            //将本身回调
            RefleshCallBack(this);
        }

        /// <summary>
        /// 保留两位小数
        /// </summary>
        /// <returns></returns>
        private string TwoDecimalPlaces(HTuple value)
        {
            return decimal.Round(decimal.Parse(value.ToString()), 2).ToString();
        }

    }
}

运行代码

            InitRectangleBtn = new RelayCommand(() =>
            {
                MsgHelper.Info("生成矩形");
                //rect = HDrawingObject.CreateDrawingObject(HDrawingObject.HDrawingObjectType.RECTANGLE1, 100, 200, 300, 400);


                 显示绘制图案
                //HalconWindow.HalconWindow.AttachDrawingObjectToWindow(rect);
                 去除绘制图案
                HalconWindow.HalconWindow.DetachDrawingObjectFromWindow(rect);

                //rect.OnDrag(new HDrawingObject.HDrawingObjectCallbackClass((id, window, type) =>
                //{
                //    var hv_type = id.GetDrawingObjectParams("type");
                //    var row1 = id.GetDrawingObjectParams("row1");
                //    var row2 = id.GetDrawingObjectParams("row2");
                //    var column1 = id.GetDrawingObjectParams("column1");
                //    var column2 = id.GetDrawingObjectParams("column2");
                //    //打印坐标
                //    NLogHelper.Debug($"拖动事件: {hv_type}:{row1} {column1} {row2} {column2} ");
                //}));
                //初始化对象
                RectangleObj = new HRectangleObj(HalconWindow);
                //刷新回调里面进行打印
                RectangleObj.RefleshCallBack = (obj) =>
                {
                    NLogHelper.Debug(obj.ToString());
                };
                //显示对象
                RectangleObj.Show();
            });

运行结果：

在这里插入图片描述

对矩形进行抽象封装

抽象就是abstract，简单来说就是认为所有的基类都有相同的函数，比如ToString,Show,Close等。抽象更利于我们的代码的规划。

其实很多语法是程序自己给自己加限制，就是强迫自己按照某个逻辑进行代码开发。典型的例子就是JS转TS。这里不展开说明

抽象基类

using HalconDotNet;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HalconExtension.Models
{
    public abstract class HObjBase
    {
        /// <summary>
        /// HS组件主题
        /// </summary>
        public HSmartWindowControlWPF WindowControlWPF { get; set; }



        public HDrawingObject DrawingObject { get; set; }

        public HTuple HType { get; private set; }
        public HObjBase(HSmartWindowControlWPF windowControlWPF)
        {
            WindowControlWPF = windowControlWPF;

        }

        /// <summary>
        /// 显示图像
        /// </summary>
        public void Show()
        {
            WindowControlWPF.HalconWindow.AttachDrawingObjectToWindow(DrawingObject);
        }


        /// <summary>
        /// 分离图像
        /// </summary>
        public void Close()
        {
            WindowControlWPF.HalconWindow.DetachDrawingObjectFromWindow(DrawingObject);
        }

        /// <summary>
        /// 保留两位小数
        /// </summary>
        /// <returns></returns>
        public string TwoDecimalPlaces(HTuple value)
        {
            return decimal.Round(decimal.Parse(value.ToString()), 2).ToString();
        }

        /// <summary>
        /// 序列化
        /// </summary>
        /// <returns></returns>
        public abstract override string ToString();

        /// <summary>
        /// 刷新事件
        /// </summary>
        public abstract void Reflash(HDrawingObject drawid, HWindow window, string type);
    }
}

矩形抽象改造

using HalconDotNet;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HalconExtension.Models
{
    /// <summary>
    /// 矩形封装
    /// </summary>
    public class HRectangleObj : HObjBase
    {
        public HTuple HType { get; private set; }
        public HTuple Row1 { get; private set; }
        public HTuple Row2 { get; private set; }
        public HTuple Column1 { get; private set; }
        public HTuple Column2 { get; private set; }

        /// <summary>
        /// 刷新回调
        /// </summary>
        public Action<HRectangleObj> RefleshCallBack { get; set; }

        /// <summary>
        /// 初始化构造函数
        /// </summary>
        /// <param name="windowControlWPF"></param>
        /// <param name="row1"></param>
        /// <param name="column1"></param>
        /// <param name="row2"></param>
        /// <param name="column2"></param>
        public HRectangleObj(HSmartWindowControlWPF windowControlWPF, HTuple row1, HTuple column1, HTuple row2, HTuple column2) : base(windowControlWPF)
        {
            //WindowControlWPF = windowControlWPF;
            Row1 = row1;
            Column1 = column1;
            Row2 = row2;
            Column2 = column2;
            DrawingObject = HDrawingObject.CreateDrawingObject(HDrawingObject.HDrawingObjectType.RECTANGLE1, Row1, Column1, Row2, Column2);

			//添加更新事件
            DrawingObject.OnDrag(Reflash);
            DrawingObject.OnResize(Reflash);
        }

        /// <summary>
        /// 默认构造函数
        /// </summary>
        /// <param name="windowControl"></param>
        public HRectangleObj(HSmartWindowControlWPF windowControl) : base(windowControl)
        {

            Row1 = 0;
            Column1 = 0;
            Row2 = 100;
            Column2 = 100;
            DrawingObject = HDrawingObject.CreateDrawingObject(HDrawingObject.HDrawingObjectType.RECTANGLE1, Row1, Column1, Row2, Column2);

            //添加更新事件
            DrawingObject.OnDrag(Reflash);
            DrawingObject.OnResize(Reflash);
        }



        /// <summary>
        /// 序列化输出
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {

            return JsonConvert.SerializeObject(new
            {
                type = HType.ToString(),
                row1 = TwoDecimalPlaces(Row1),
                column1 = TwoDecimalPlaces(Column1),
                row2 = TwoDecimalPlaces(Row2),
                column2 = TwoDecimalPlaces(Column2)
            });
        }

        public override void Reflash(HDrawingObject drawid, HWindow window, string type)
        {
            HType = drawid.GetDrawingObjectParams("type");
            Row1 = drawid.GetDrawingObjectParams("row1");
            Row2 = drawid.GetDrawingObjectParams("row2");
            Column1 = drawid.GetDrawingObjectParams("column1");
            Column2 = drawid.GetDrawingObjectParams("column2");

            //将本身回调
            RefleshCallBack(this);
        }



    }
}

圆形抽象封装

如果集成抽象的对象只有一个，那么抽象就没有意义了。抽象一定是多个类继承才有使用的实际意义。

代码

using HalconDotNet;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HalconExtension.Models
{
    public class HCircleObj : HObjBase
    {
        public HTuple Row { get; set; }

        public HTuple Column { get; set; }

        public HTuple Radius { get; set; }

        public HTuple HType { get; private set; }

        /// <summary>
        /// 刷新回调
        /// </summary>
        public Action<HCircleObj> RefleshCallBack { get; set; }

        public HCircleObj(HSmartWindowControlWPF windowControlWPF, HTuple row, HTuple col, HTuple radius):base(windowControlWPF)
        {
            Row = row;
            Column = col;
            Radius = radius;

            DrawingObject = HDrawingObject.CreateDrawingObject(HDrawingObject.HDrawingObjectType.CIRCLE, Row, Column, Radius);

            //添加更新事件
            DrawingObject.OnDrag(Reflash);
            DrawingObject.OnResize(Reflash);
        }

        public HCircleObj(HSmartWindowControlWPF windowControlWPF) : this(windowControlWPF,64,64,64)
        {
        }

        public override void Reflash(HDrawingObject drawid, HWindow window, string type)
        {
            HType = drawid.GetDrawingObjectParams("type");
            Row = drawid.GetDrawingObjectParams("row");
            Column = drawid.GetDrawingObjectParams("column");
            Radius = drawid.GetDrawingObjectParams("radius");

            //将本身回调
            RefleshCallBack(this);
        }

        public override string ToString()
        {
            return JsonConvert.SerializeObject(new
            {
                type = HType.ToString(),
                row = TwoDecimalPlaces(Row),
                column = TwoDecimalPlaces(Column),
                radius = TwoDecimalPlaces(Radius),
            });
        }
    }
}