.net copy

2026-03-21 10:21:16 +00:00 · 2021-04-14 16:26:56 +03:00
parent 55e354b980
commit 81af2d3c8c
105 changed files with 31645 additions and 0 deletions
--- a/BrightSharp.NET/Diagrams/Thumbs/RotateThumb.cs
+++ b/BrightSharp.NET/Diagrams/Thumbs/RotateThumb.cs
@@ -0,0 +1,88 @@
+using System;
+using System.ComponentModel;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Input;
+using System.Windows.Media;
+
+namespace BrightSharp.Diagrams
+{
+    [ToolboxItem(false)]
+    public class RotateThumb : Thumb
+    {
+        private double initialAngle;
+        private RotateTransform rotateTransform;
+        private Vector startVector;
+        private Point centerPoint;
+        private ContentControl designerItem;
+        private Canvas canvas;
+
+        public RotateThumb()
+        {
+            DragDelta += new DragDeltaEventHandler(RotateThumb_DragDelta);
+            DragStarted += new DragStartedEventHandler(RotateThumb_DragStarted);
+            MouseRightButtonDown += RotateThumb_MouseLeftButtonDown;
+        }
+
+        private void RotateThumb_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
+        {
+            if (e.RightButton == MouseButtonState.Pressed)
+            {
+                rotateTransform = designerItem.RenderTransform as RotateTransform;
+                if (rotateTransform != null)
+                {
+                    rotateTransform.Angle = 0;
+                    designerItem.InvalidateMeasure();
+                }
+            }
+        }
+
+        private void RotateThumb_DragStarted(object sender, DragStartedEventArgs e)
+        {
+            designerItem = DataContext as ContentControl;
+
+            if (designerItem != null)
+            {
+                canvas = VisualTreeHelper.GetParent(designerItem) as Canvas;
+
+                if (canvas != null)
+                {
+                    centerPoint = designerItem.TranslatePoint(
+                        new Point(designerItem.ActualWidth * designerItem.RenderTransformOrigin.X,
+                                  designerItem.ActualHeight * designerItem.RenderTransformOrigin.Y),
+                                  canvas);
+
+                    Point startPoint = Mouse.GetPosition(canvas);
+                    startVector = Point.Subtract(startPoint, centerPoint);
+
+                    rotateTransform = designerItem.RenderTransform as RotateTransform;
+                    if (rotateTransform == null)
+                    {
+                        designerItem.RenderTransform = new RotateTransform(0);
+                        initialAngle = 0;
+                    }
+                    else
+                    {
+                        initialAngle = rotateTransform.Angle;
+                    }
+                }
+            }
+        }
+
+        private void RotateThumb_DragDelta(object sender, DragDeltaEventArgs e)
+        {
+            if (designerItem != null && canvas != null)
+            {
+                Point currentPoint = Mouse.GetPosition(canvas);
+                Vector deltaVector = Point.Subtract(currentPoint, centerPoint);
+
+                double angle = Vector.AngleBetween(startVector, deltaVector);
+
+                RotateTransform rotateTransform = designerItem.RenderTransform as RotateTransform;
+                rotateTransform.Angle = initialAngle + Math.Round(angle, 0);
+                designerItem.InvalidateMeasure();
+            }
+        }
+    }
+}