refactor: extract SelectionManager from PlateView

Move all selection state and operations (SelectedParts, SelectedCutOffs, DeselectAll, SelectAll, AlignSelected, RotateSelectedParts, PushSelected, GetPartAt*, GetPartsFromWindow, DeleteSelected) into a new internal SelectionManager class. PlateView retains public forwarding methods and properties to preserve the existing API surface. SelectedCutOff property kept public for WinForms designer compatibility. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-07 15:09:08 -04:00
parent 11884e712d
commit 089df67627
3 changed files with 310 additions and 193 deletions
@@ -0,0 +1,218 @@
+using OpenNest.Engine.Fill;
+using OpenNest.Geometry;
+using OpenNest.Math;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Drawing;
+using System.Linq;
+
+namespace OpenNest.Controls
+{
+    internal class SelectionManager
+    {
+        private readonly PlateView view;
+        private readonly List<LayoutPart> selectedParts = new List<LayoutPart>();
+        private readonly List<CutOff> selectedCutOffs = new List<CutOff>();
+
+        public SelectionManager(PlateView view)
+        {
+            this.view = view;
+        }
+
+        public List<LayoutPart> SelectedParts => selectedParts;
+        public List<CutOff> SelectedCutOffs => selectedCutOffs;
+
+        public event EventHandler SelectionChanged;
+
+        public void DeselectAll()
+        {
+            selectedParts.ForEach(p => p.IsSelected = false);
+            selectedParts.Clear();
+            selectedCutOffs.Clear();
+            SelectionChanged?.Invoke(view, EventArgs.Empty);
+        }
+
+        public void DeselectParts()
+        {
+            selectedParts.ForEach(p => p.IsSelected = false);
+            selectedParts.Clear();
+            SelectionChanged?.Invoke(view, EventArgs.Empty);
+        }
+
+        public void DeselectCutOffs()
+        {
+            selectedCutOffs.Clear();
+            view.Invalidate();
+        }
+
+        public void SelectAll()
+        {
+            var parts = view.LayoutParts;
+            parts.ForEach(p => p.IsSelected = true);
+            selectedParts.AddRange(parts);
+            SelectionChanged?.Invoke(view, EventArgs.Empty);
+        }
+
+        public void NotifySelectionChanged()
+        {
+            SelectionChanged?.Invoke(view, EventArgs.Empty);
+        }
+
+        public void DeleteSelected()
+        {
+            if (selectedCutOffs.Count > 0)
+            {
+                foreach (var cutOff in selectedCutOffs)
+                    view.Plate.CutOffs.Remove(cutOff);
+
+                selectedCutOffs.Clear();
+                view.Plate.RegenerateCutOffs(view.CutOffSettings);
+                view.Invalidate();
+            }
+            else
+            {
+                RemoveSelectedParts();
+            }
+        }
+
+        public void RemoveSelectedParts()
+        {
+            foreach (var part in selectedParts)
+                view.Plate.Parts.Remove(part.BasePart);
+
+            DeselectAll();
+            view.Invalidate();
+        }
+
+        public void AlignSelected(AlignType alignType)
+        {
+            if (selectedParts.Count == 0)
+                return;
+
+            AlignSelected(alignType, selectedParts[0]);
+        }
+
+        public void AlignSelected(AlignType alignType, LayoutPart fixedPart)
+        {
+            switch (alignType)
+            {
+                case AlignType.Bottom:
+                    Align.Bottom(fixedPart.BasePart, selectedParts.Select(p => p.BasePart).ToList());
+                    break;
+                case AlignType.Horizontally:
+                    Align.Horizontally(fixedPart.BasePart, selectedParts.Select(p => p.BasePart).ToList());
+                    break;
+                case AlignType.Left:
+                    Align.Left(fixedPart.BasePart, selectedParts.Select(p => p.BasePart).ToList());
+                    break;
+                case AlignType.Right:
+                    Align.Right(fixedPart.BasePart, selectedParts.Select(p => p.BasePart).ToList());
+                    break;
+                case AlignType.Top:
+                    Align.Top(fixedPart.BasePart, selectedParts.Select(p => p.BasePart).ToList());
+                    break;
+                case AlignType.Vertically:
+                    Align.Vertically(fixedPart.BasePart, selectedParts.Select(p => p.BasePart).ToList());
+                    break;
+                case AlignType.EvenlySpaceHorizontally:
+                    Align.EvenlyDistributeHorizontally(selectedParts.Select(p => p.BasePart).ToList());
+                    break;
+                case AlignType.EvenlySpaceVertically:
+                    Align.EvenlyDistributeVertically(selectedParts.Select(p => p.BasePart).ToList());
+                    break;
+                default:
+                    return;
+            }
+
+            selectedParts.ForEach(p => p.IsDirty = true);
+            view.Invalidate();
+        }
+
+        public void RotateSelectedParts(double angle)
+        {
+            var parts = selectedParts.Select(p => p.BasePart).ToList();
+            var bounds = parts.GetBoundingBox();
+            var center = bounds.Center;
+            var anchor = bounds.Location;
+
+            for (var i = 0; i < selectedParts.Count; ++i)
+                selectedParts[i].BasePart.Rotate(angle, center);
+
+            var diff = anchor - parts.GetBoundingBox().Location;
+
+            for (var i = 0; i < selectedParts.Count; ++i)
+                selectedParts[i].Offset(diff);
+
+            if (view.Plate.CutOffs.Count > 0)
+                view.Plate.RegenerateCutOffs(view.CutOffSettings);
+        }
+
+        public void PushSelected(PushDirection direction)
+        {
+            var movingParts = selectedParts.Select(p => p.BasePart).ToList();
+            Compactor.Push(movingParts, view.Plate, direction);
+            selectedParts.ForEach(p => p.IsDirty = true);
+            view.Invalidate();
+        }
+
+        public LayoutPart GetPartAtControlPoint(Point pt)
+        {
+            var pt2 = view.PointControlToGraph(pt);
+            return GetPartAtGraphPoint(pt2);
+        }
+
+        public LayoutPart GetPartAtGraphPoint(PointF pt)
+        {
+            var parts = view.LayoutParts;
+            for (var i = parts.Count - 1; i >= 0; --i)
+            {
+                if (parts[i].Path.IsVisible(pt))
+                    return parts[i];
+            }
+            return null;
+        }
+
+        public LayoutPart GetPartAtPoint(Vector pt)
+        {
+            var pt2 = view.PointWorldToGraph(pt);
+            return GetPartAtGraphPoint(pt2);
+        }
+
+        public IList<LayoutPart> GetPartsFromWindow(RectangleF rect, SelectionType selectionType)
+        {
+            var list = new List<LayoutPart>();
+            var parts = view.LayoutParts;
+
+            if (selectionType == SelectionType.Intersect)
+            {
+                for (var i = 0; i < parts.Count; ++i)
+                {
+                    var part = parts[i];
+                    var region = new Region(part.Path);
+                    if (region.IsVisible(rect))
+                        list.Add(part);
+                    region.Dispose();
+                }
+            }
+            else
+            {
+                for (var i = 0; i < parts.Count; ++i)
+                {
+                    var part = parts[i];
+                    var bounds = part.Path.GetBounds();
+                    if (rect.Contains(bounds))
+                        list.Add(part);
+                }
+            }
+
+            return list;
+        }
+
+        public void Clear()
+        {
+            selectedParts.Clear();
+            selectedCutOffs.Clear();
+        }
+    }
+}