check point

Hawkeye.VisionBuilder/Features/ImagePreview/ImagePreviewPanel.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using Hawkeye.VisionBuilder.Panels;
+using Hawkeye.VisionBuilder.Workflow.Datatypes;
+using Hawkeye.VisionBuilder.Workflow.Datatypes.Elements;
+
+namespace Hawkeye.VisionBuilder.Features.ImagePreview
+{
+    public partial class ImagePreviewPanel : BasePannel
+    {
+        public ImagePreviewPanel()
+        {
+            InitializeComponent();
+            imagePreviewControl = new ImagePreviewControl()
+            {
+                Dock = DockStyle.Fill
+            };
+            this.Controls.Add(imagePreviewControl);
+            imagePreviewControl.BringToFront();
+        }
+
+        public Workflow.Datatypes.HawkeyeImage CurrentImage { get; set; }
+        public void SetImage(Workflow.Datatypes.HawkeyeImage image)
+        {
+            if (image == null) return;
+            imagePreviewControl.Image = image;
+            CurrentImage = image;
+            imagePreviewControl.Invalidate();
+        }
+
+        public void ClearGraphics()
+        {
+            imagePreviewControl.GraphicsElements.Clear();
+        }
+
+
+        public void AddGraphics(IGraphicsElement element)
+        {
+            imagePreviewControl.GraphicsElements.Add(element);
+        }
+
+        private void btnFit_Click(object sender, EventArgs e)
+        {
+            imagePreviewControl.FitToScreen();
+        }
+    }
+}