Revert "Revert "block 可以拖拽到内部，还有少量问题待解决""

This reverts commit fcd7beb193.
2026-04-26 19:23:24 +08:00 · 2023-06-11 23:58:22 +08:00
parent fcd7beb193
commit 5a9bcc03f3
73 changed files with 7132 additions and 242 deletions
--- a/AIStudio.Wpf.DiagramDesigner/AttachedProperties/WidthAndHeightProps.cs
+++ b/AIStudio.Wpf.DiagramDesigner/AttachedProperties/WidthAndHeightProps.cs
@@ -0,0 +1,100 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace AIStudio.Wpf.DiagramDesigner
+{
+
+    public static class WidthAndHeightProps
+    {
+        public static readonly DependencyProperty ActiveProperty = DependencyProperty.RegisterAttached(
+        "Active",
+        typeof(bool),
+        typeof(WidthAndHeightProps),
+        new FrameworkPropertyMetadata(OnActiveChanged));
+
+        public static bool GetActive(FrameworkElement frameworkElement)
+        {
+            return (bool)frameworkElement.GetValue(ActiveProperty);
+        }
+
+        public static void SetActive(FrameworkElement frameworkElement, bool active)
+        {
+            frameworkElement.SetValue(ActiveProperty, active);
+        }
+
+        public static readonly DependencyProperty BoundActualWidthProperty = DependencyProperty.RegisterAttached(
+            "BoundActualWidth",
+            typeof(double),
+            typeof(WidthAndHeightProps));
+
+        public static double GetBoundActualWidth(FrameworkElement frameworkElement)
+        {
+            return (double)frameworkElement.GetValue(BoundActualWidthProperty);
+        }
+
+        public static void SetBoundActualWidth(FrameworkElement frameworkElement, double width)
+        {
+            frameworkElement.SetValue(BoundActualWidthProperty, width);
+        }
+
+        public static readonly DependencyProperty BoundActualHeightProperty = DependencyProperty.RegisterAttached(
+            "BoundActualHeight",
+            typeof(double),
+            typeof(WidthAndHeightProps));
+
+        public static double GetBoundActualHeight(FrameworkElement frameworkElement)
+        {
+            return (double)frameworkElement.GetValue(BoundActualHeightProperty);
+        }
+
+        public static void SetBoundActualHeight(FrameworkElement frameworkElement, double height)
+        {
+            frameworkElement.SetValue(BoundActualHeightProperty, height);
+        }
+
+        private static void OnActiveChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
+        {
+            if (!(dependencyObject is FrameworkElement frameworkElement))
+            {
+                return;
+            }
+
+            if ((bool)e.NewValue)
+            {
+                frameworkElement.SizeChanged -= OnFrameworkElementSizeChanged;
+                frameworkElement.SizeChanged += OnFrameworkElementSizeChanged;
+                frameworkElement.Loaded -= FrameworkElement_Loaded;
+                frameworkElement.Loaded += FrameworkElement_Loaded;
+               
+            }
+            else
+            {
+                frameworkElement.SizeChanged -= OnFrameworkElementSizeChanged;
+                frameworkElement.Loaded -= FrameworkElement_Loaded;
+            }
+        }
+
+        private static void FrameworkElement_Loaded(object sender, RoutedEventArgs e)
+        {
+            UpdateObservedSizesForFrameworkElement(sender as FrameworkElement);
+        }
+
+        private static void OnFrameworkElementSizeChanged(object sender, SizeChangedEventArgs e)
+        {
+            if (sender is FrameworkElement frameworkElement)
+            {
+                UpdateObservedSizesForFrameworkElement(frameworkElement);
+            }
+        }
+
+        private static void UpdateObservedSizesForFrameworkElement(FrameworkElement frameworkElement)
+        {
+            frameworkElement.SetCurrentValue(BoundActualWidthProperty, frameworkElement.ActualWidth);
+            frameworkElement.SetCurrentValue(BoundActualHeightProperty, frameworkElement.ActualHeight);
+        }
+    }
+}