整理一下项目文件

2026-04-12 20:26:35 +08:00 · 2022-10-28 22:45:39 +08:00
parent 334297b074
commit 513937c1d6
598 changed files with 684 additions and 544 deletions
--- a/AIStudio.Wpf.DiagramDesigner/Controls/DragThumb.cs
+++ b/AIStudio.Wpf.DiagramDesigner/Controls/DragThumb.cs
@@ -0,0 +1,110 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Media;
+
+namespace AIStudio.Wpf.DiagramDesigner.Controls
+{
+    public class DragThumb : Thumb
+    {
+        public DragThumb()
+        {
+            base.DragDelta += new DragDeltaEventHandler(DragThumb_DragDelta);
+            base.DragStarted += DragThumb_DragStarted;
+            base.DragCompleted += DragThumb_DragCompleted;
+        }
+
+        private List<SelectableDesignerItemViewModelBase> designerItems;
+
+        private void DragThumb_DragStarted(object sender, DragStartedEventArgs e)
+        {
+            SelectableDesignerItemViewModelBase designerItem = this.DataContext as SelectableDesignerItemViewModelBase;
+
+            if (designerItem != null && designerItem.IsSelected)
+            {
+                // we only move DesignerItems
+                designerItems = designerItem.SelectedItems.ToList();
+                if (designerItem is ConnectorViewModel connector)
+                {
+                    designerItems.Add(connector.SourceConnectorInfo.DataItem);
+                    designerItems.Add((connector.SinkConnectorInfo as FullyCreatedConnectorInfo).DataItem);
+
+                    if (designerItem.OutTextItem != null)
+                    {
+                        designerItems.Remove(designerItem.OutTextItem);//这个自动计算位置
+                    }
+                }
+
+                if (designerItem is PointDesignerItemViewModel)
+                {
+                    designerItems = new List<SelectableDesignerItemViewModelBase> { designerItem };
+                }
+
+                foreach (DesignerItemViewModelBase item in designerItems.OfType<DesignerItemViewModelBase>())
+                {
+                    item.BeginDo = true;
+                    item.SetOldValue(item.Left, nameof(item.Left));
+                    item.SetOldValue(item.Top, nameof(item.Top));
+                }
+
+                e.Handled = true;
+            }
+            else
+            {
+                designerItems = null;
+            }
+        }
+        
+        private void DragThumb_DragCompleted(object sender, DragCompletedEventArgs e)
+        {
+            if (designerItems != null)
+            {
+                foreach (DesignerItemViewModelBase item in designerItems.OfType<DesignerItemViewModelBase>())
+                {               
+                    item.SetCellAlignment();
+                    item.BeginDo = false;
+                    item.RaiseTopLeft();
+                }             
+
+                e.Handled = true;
+            }
+        }
+
+        void DragThumb_DragDelta(object sender, DragDeltaEventArgs e)
+        {
+            if (designerItems != null)
+            {
+                double minLeft = double.MaxValue;
+                double minTop = double.MaxValue;        
+
+                foreach (DesignerItemViewModelBase item in designerItems.OfType<DesignerItemViewModelBase>())
+                {
+                    double left = item.Left;
+                    double top = item.Top;
+                    minLeft = double.IsNaN(left) ? 0 : Math.Min(left, minLeft);
+                    minTop = double.IsNaN(top) ? 0 : Math.Min(top, minTop);
+
+                    double deltaHorizontal = Math.Max(-minLeft, e.HorizontalChange);
+                    double deltaVertical = Math.Max(-minTop, e.VerticalChange);
+                    item.Left += deltaHorizontal;
+                    item.Top += deltaVertical;
+                }
+
+
+                e.Handled = true;
+            }
+        }
+
+        private DesignerCanvas GetDesignerCanvas(DependencyObject element)
+        {
+            while (element != null && !(element is DesignerCanvas))
+                element = VisualTreeHelper.GetParent(element);
+
+            return element as DesignerCanvas;
+        }
+    }
+}