Display_D_HP/TeamAAS-VM/Views/Product/PlcPointParams.xaml.cs

using Cognex.VisionPro;
using Cognex.VisionPro.Dimensioning;
using OxyPlot;
using System;
using System.Windows.Controls;
using TeamAAS_VP.ViewModels.Product;

namespace TeamAAS_VP.Views.Product
{
    /// <summary>
    /// Interaction logic for PlcPointParams
    /// </summary>
    public partial class PlcPointParams : UserControl
    {

        PlcPointParamsViewModel VM;
        public PlcPointParams()
        {
            InitializeComponent();
            VM = DataContext as PlcPointParamsViewModel;
            VM.PropertyChanged += VM_PropertyChanged;
            VM.PropertyChanged += Vm_SelectedIndexChanged;
            // initialize visibility
            try
            {
                if (VM != null && colProcedure != null)
                    colProcedure.Visibility = VM.SelectedIndex == 3 ? System.Windows.Visibility.Visible : System.Windows.Visibility.Collapsed;
            }
            catch { }
            this.display.HorizontalScrollBar = false;
            this.display.VerticalScrollBar = false;
            this.display.AutoFit = true;
            this.display.BackColor = System.Drawing.SystemColors.ActiveCaption;
        }

        private void Vm_SelectedIndexChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
        {
            if (e.PropertyName == nameof(PlcPointParamsViewModel.SelectedIndex))
            {
                try
                {
                    var visible = VM.SelectedIndex == 3 || VM.SelectedIndex == 5 ? System.Windows.Visibility.Visible : System.Windows.Visibility.Collapsed;
                    this.Dispatcher.BeginInvoke(new Action(() =>
                    {
                        if (colProcedure != null)
                            colProcedure.Visibility = visible;
                    }));
                }
                catch { }
            }
        }

        private void ProcedureCombo_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
        {
            try
            {
                var combo = sender as System.Windows.Controls.ComboBox;
                if (combo == null) return;
                var proc = combo.SelectedItem as TeamAAS_VP.Models.ProcedureModel;
                var point = combo.DataContext as TeamAAS_VP.Models.PLC.PlcPoint;
                if (point != null && proc != null)
                {
                    // SelectedValue binding already sets VisionProcessID; sync name
                    point.VisionProcessName = proc.Name;
                }
            }
            catch { }
        }


        private int _imageWidth;
        private int _imageHeight;
        private void VM_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
        {
            if (e.PropertyName == "Image")
            {
                if (this.display.Image==null)
                {
                    this.display.Image = VM.Image;
                    //图像中心点坐标
                    _imageWidth= this.display.Image.Width;
                    _imageHeight= this.display.Image.Height;
                    CogGraphicCollection graphic = new CogGraphicCollection();
                    CogCreateLineTool line1 = new CogCreateLineTool();
                    CogCreateLineTool line2 = new CogCreateLineTool();
                    line1.InputImage = this.display.Image;
                    line2.InputImage = this.display.Image;
                    line1.Line.X = _imageWidth / 2;
                    line1.Line.Y = _imageHeight / 2;
                    line1.Line.Rotation = 0;
                    line2.Line.X = _imageWidth / 2;
                    line2.Line.Y = _imageHeight / 2;
                    line2.Line.Rotation = Math.PI / 180 * 90;
                    line1.Run();
                    line2.Run();
                    graphic.Add(line1.GetOutputLine());
                    graphic.Add(line2.GetOutputLine());
                    this.display.StaticGraphics.Clear();
                    this.display.StaticGraphics.AddList(graphic, "");
                }
                else
                {
                    this.display.Image = VM.Image;
                    //如果图像的长宽发生变化，则重新绘制十字线
                    if (_imageWidth!= this.display.Image.Width|| _imageHeight!= this.display.Image.Height)
                    {
                        _imageWidth = this.display.Image.Width;
                        _imageHeight = this.display.Image.Height;
                        CogGraphicCollection graphic = new CogGraphicCollection();
                        CogCreateLineTool line1 = new CogCreateLineTool();
                        CogCreateLineTool line2 = new CogCreateLineTool();
                        line1.InputImage = this.display.Image;
                        line2.InputImage = this.display.Image;
                        line1.Line.X = _imageWidth / 2;
                        line1.Line.Y = _imageHeight / 2;
                        line1.Line.Rotation = 0;
                        line2.Line.X = _imageWidth / 2;
                        line2.Line.Y = _imageHeight / 2;
                        line2.Line.Rotation = Math.PI / 180 * 90;
                        line1.Run();
                        line2.Run();
                        graphic.Add(line1.GetOutputLine());
                        graphic.Add(line2.GetOutputLine());
                        this.display.StaticGraphics.Clear();
                        this.display.StaticGraphics.AddList(graphic, "");
                    }

                }
            }
        }
    }
}