check point

VisionBuilder.UI.Windows/Components/PreviewWindow.cs

@@ -0,0 +1,44 @@
+using OpenCvSharp.Extensions;
+using VisionBuilder.UI.Common.ViewModel;
+
+namespace VisionBuilder.UI.Windows.Components;
+
+public class PreviewWindow:PictureBox
+{
+    private PreviewVM _previewVm;
+
+    public void SetViewModel(PreviewVM previewVm)
+    {
+        _previewVm = previewVm;
+        _previewVm.PropertyChanged += _previewVm_PropertyChanged;
+    }
+
+    private void _previewVm_PropertyChanged(object? sender, System.ComponentModel.PropertyChangedEventArgs e)
+    {
+        switch (e.PropertyName)
+        {
+            case nameof(PreviewVM.ImagePreview):
+                var bmp = _previewVm.ImagePreview?.ToBitmap();
+                using (Graphics g = Graphics.FromImage(bmp))
+                {
+                    // draw red border around the image if it's an error
+                    if (_previewVm.IsError)
+                    {
+                        using (Pen pen = new Pen(Color.Red, 5))
+                        {
+                            g.DrawRectangle(pen, 0, 0, bmp.Width - 1, bmp.Height - 1);
+                        }
+                    }
+                }
+                Image = bmp;
+                break;
+
+        }
+       
+    }
+
+    public PreviewWindow()
+    {
+        SizeMode = PictureBoxSizeMode.Zoom;
+    }
+}