LampInspectionMachine/ViewModels/CameraViewModel.cs

using Cognex.VisionPro.ToolBlock;
using Cognex.VisionPro;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using LampInspectionMachine.Views;
using Prism.Commands;
using System.Windows;
using LampInspectionMachine.Core;
using Prism.Events;
using Prism.Ioc;
using Prism.Regions;
using Prism.Mvvm;
using System.Configuration;
using System.Drawing.Design;
using System.Windows.Forms.Integration;
using System.Threading;
using System.Windows.Interop;
using LampInspectionMachine.Model;

namespace LampInspectionMachine.ViewModels
{
    public class CameraViewModel : BindableBase, IConfirmNavigationRequest
    {
        IContainerProvider _container;
        private Management management;
        private int index;

        public Management Management { get => management; set { SetProperty(ref management, value); } }

        public CameraViewModel(IContainerProvider container, IRegionManager regionManager, IEventAggregator eventAggregator)
        {
            _container = container;
            Management = _container.Resolve<Management>();

        }


        private DelegateCommand _SoftTriggerCommand;
        /// <summary>
        /// 开始采集
        /// </summary>
        public DelegateCommand SoftTriggerCommand =>
            _SoftTriggerCommand ?? ( _SoftTriggerCommand = new DelegateCommand(OnSoftTrigger) );


        private DelegateCommand _SoftTrigger_ContinueCommand;
        /// <summary>
        /// 开始采集
        /// </summary>
        public DelegateCommand SoftTrigger_ContinueCommand =>
            _SoftTrigger_ContinueCommand ?? ( _SoftTrigger_ContinueCommand = new DelegateCommand(OnSoftTrigger__Continue) );


        private DelegateCommand _CameraInifCommand;
        /// <summary>
        /// 相机初始化
        /// </summary>
        public DelegateCommand CameraInifCommand =>
            _CameraInifCommand ?? ( _CameraInifCommand = new DelegateCommand(OnCameraInit) );


        private DelegateCommand _CameraCloseCommand;
        /// <summary>
        /// 相机关闭
        /// </summary>
        public DelegateCommand CameraCloseCommand =>
            _CameraCloseCommand ?? ( _CameraCloseCommand = new DelegateCommand(OnCameraClose) );




        private void OnSoftTrigger()
        {
            
            
            Management.SoftTrigger();
        }
        private void OnSoftTrigger__Continue()
        {
            Management.SoftTrigger__Continue();
        }


        private void OnCameraInit()
        {

            Management.InitCamera(Management.CurrCameraSn);

        }
        /// <summary>
        /// 接收参数
        /// </summary>
        /// <param name="navigationContext"></param>
        /// <exception cref="NotImplementedException"></exception>
        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            if ( navigationContext.Parameters.ContainsKey("Index") )
            {
                 index= Convert.ToInt32(navigationContext.Parameters.GetValue<string>("Index"));
                if ( Management.CameraList!=null )
                {
                    if( index < Management.CameraList.Count )
                    Management.CurrCameraSn = Management.CameraList[ index ];
                    if ( index < Management.CamConfigs.Count )
                        Management.CurrCamConfig = Management.CamConfigs[ index ].Copy() ;
                }
            }
        }
        private void OnCameraClose()
        {


            Management.CloseCamera();
        }

        public void ConfirmNavigationRequest(NavigationContext navigationContext, Action<bool> continuationCallback)
        {
            if ( Management.CurrCamConfig != null ) 
            {
                Management.CamConfigs[ index ]= Management.CurrCamConfig.Copy();
            }
            continuationCallback(true);
        }

        public bool IsNavigationTarget(NavigationContext navigationContext)
        {
            return true;
        }

        public void OnNavigatedFrom(NavigationContext navigationContext)
        {

        }
    }


    public static class CogDisplayBinder
    {
        public static readonly DependencyProperty ImageSourceProperty =
        DependencyProperty.RegisterAttached(
            "ImageSource",
            typeof(ICogImage),
            typeof(CogDisplayBinder),
            new FrameworkPropertyMetadata(
                null,
                FrameworkPropertyMetadataOptions.None,
                OnImageSourceChanged));


        public static ICogImage GetImageSource(WindowsFormsHost host) =>
            ( ICogImage ) host.GetValue(ImageSourceProperty);

        public static void SetImageSource(WindowsFormsHost host, ICogImage value) =>
            host.SetValue(ImageSourceProperty, value);

        public static void OnImageSourceChanged(
            DependencyObject d,
            DependencyPropertyChangedEventArgs e)
        {
            if ( d is WindowsFormsHost host &&
                host.Child is CogRecordDisplay display )
            {
                if ( e.NewValue is ICogImage newImage )
                {

                    // 跨线程安全更新
                    host.Dispatcher.Invoke(() =>
                    {

                        try
                        {
                            display.Image = newImage;
                            display.Fit(true);
                        }
                        catch
                        {

                        }



                    });


                }
                else
                {
                    host.Dispatcher.Invoke(() => display.Image = null);
                }
            }
        }
    }

}