规范类名及命名空间名称

2026-04-13 14:35:37 +08:00
parent c430ec229b
commit ace1c70ddf
217 changed files with 1271 additions and 1384 deletions
@@ -0,0 +1,142 @@
+using System.Collections.Generic;
+using System.Windows;
+using System.Windows.Controls.Primitives;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Shapes;
+
+namespace XP.ImageProcessing.RoiControl
+{
+    /// <summary>
+    /// 多边形装饰器，用于编辑多边形顶点
+    /// </summary>
+    public class PolygonAdorner : Adorner
+    {
+        private List<ControlThumb> vertexThumbs = new List<ControlThumb>();  // 顶点控制�?
+        private VisualCollection visualChildren;
+        private double scaleFactor = 1;
+        private Models.PolygonROI? polygonROI;
+
+        public PolygonAdorner(UIElement adornedElement, double scaleFactor = 1, Models.PolygonROI? roiModel = null)
+            : base(adornedElement)
+        {
+            visualChildren = new VisualCollection(this);
+            this.scaleFactor = scaleFactor;
+            this.polygonROI = roiModel;
+
+            // 使用ROI模型的Points数量而不是Polygon的Points
+            int pointCount = polygonROI?.Points.Count ?? 0;
+
+            // 创建顶点控制�?
+            for (int i = 0; i < pointCount; i++)
+            {
+                var thumb = new ControlThumb();
+                thumb.DragDelta += HandleDrag;
+                thumb.DragCompleted += HandleDragCompleted;
+                thumb.MouseRightButtonDown += HandleRightClick;
+                thumb.Tag = i;
+                thumb.Cursor = Cursors.Hand;
+                vertexThumbs.Add(thumb);
+                visualChildren.Add(thumb);
+            }
+
+            // 不再创建边中点控制点 - 使用智能插入算法代替
+            // 用户可以直接点击画布，系统会自动找到最近的边并插入顶点
+        }
+
+        private void HandleDrag(object sender, DragDeltaEventArgs args)
+        {
+            Thumb? hitThumb = sender as Thumb;
+            if (hitThumb == null || polygonROI == null) return;
+
+            int index = (int)hitThumb.Tag;
+
+            // 直接修改ROI模型的Points
+            if (index < polygonROI.Points.Count)
+            {
+                Point currentPoint = polygonROI.Points[index];
+                Point newPoint = new Point(
+                    currentPoint.X + args.HorizontalChange,
+                    currentPoint.Y + args.VerticalChange
+                );
+
+                // 使用索引器修改ObservableCollection中的元素
+                polygonROI.Points[index] = newPoint;
+            }
+
+            // 强制重新布局
+            InvalidateArrange();
+        }
+
+        private void HandleDragCompleted(object sender, DragCompletedEventArgs args)
+        {
+            // 拖拽完成后通知模型更新
+            if (polygonROI != null)
+            {
+                polygonROI.OnPropertyChanged(nameof(polygonROI.Points));
+            }
+        }
+
+        private void HandleRightClick(object sender, MouseButtonEventArgs e)
+        {
+            // 右键删除顶点（至少保�?个顶点）
+            if (polygonROI != null && polygonROI.Points.Count > 3)
+            {
+                Thumb? hitThumb = sender as Thumb;
+                if (hitThumb != null)
+                {
+                    int index = (int)hitThumb.Tag;
+
+                    // 删除顶点 - ObservableCollection会自动触发CollectionChanged事件
+                    // PolygonRoiCanvas会监听到这个变化并自动更新Adorner
+                    polygonROI.Points.RemoveAt(index);
+
+                    e.Handled = true;
+                }
+            }
+        }
+
+        protected override Size ArrangeOverride(Size finalSize)
+        {
+            // 使用ROI模型的Points而不是Polygon的Points
+            if (polygonROI != null)
+            {
+                double thumbSize = 12 * scaleFactor;
+
+                // 布局顶点控制�?
+                for (int i = 0; i < vertexThumbs.Count && i < polygonROI.Points.Count; i++)
+                {
+                    vertexThumbs[i].Arrange(new Rect(
+                        polygonROI.Points[i].X - (thumbSize / 2),
+                        polygonROI.Points[i].Y - (thumbSize / 2),
+                        thumbSize,
+                        thumbSize));
+                }
+            }
+            else
+            {
+                // 备用方案：使用Polygon的Points
+                Polygon poly = (Polygon)AdornedElement;
+                double thumbSize = 12 * scaleFactor;
+
+                for (int i = 0; i < vertexThumbs.Count && i < poly.Points.Count; i++)
+                {
+                    vertexThumbs[i].Arrange(new Rect(
+                        poly.Points[i].X - (thumbSize / 2),
+                        poly.Points[i].Y - (thumbSize / 2),
+                        thumbSize,
+                        thumbSize));
+                }
+            }
+
+            return finalSize;
+        }
+
+        protected override int VisualChildrenCount
+        { get { return visualChildren.Count; } }
+
+        protected override Visual GetVisualChild(int index)
+        { return visualChildren[index]; }
+    }
+}