.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/MoveThumb.cs
+++ b/BrightSharp.NET/Diagrams/Thumbs/MoveThumb.cs
@@ -0,0 +1,75 @@
+using System;
+using System.ComponentModel;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Media;
+
+namespace BrightSharp.Diagrams
+{
+    [ToolboxItem(false)]
+    public class MoveThumb : Thumb
+    {
+        private RotateTransform rotateTransform;
+        private FrameworkElement designerItem;
+        private static int? zIndex = null;
+
+        public MoveThumb()
+        {
+            DragStarted += MoveThumb_DragStarted;
+            DragDelta += MoveThumb_DragDelta;
+            DragCompleted += MoveThumb_DragCompleted;
+        }
+
+        private void MoveThumb_DragCompleted(object sender, DragCompletedEventArgs e)
+        {
+            //TODO Need think about ZIndex changes
+        }
+
+        private void MoveThumb_DragStarted(object sender, DragStartedEventArgs e)
+        {
+            designerItem = DataContext as FrameworkElement;
+
+            if (designerItem != null)
+            {
+                rotateTransform = designerItem.RenderTransform as RotateTransform;
+                if (designerItem.GetBindingExpression(Panel.ZIndexProperty) == null)
+                {
+                    zIndex = Math.Max(zIndex ?? 0, Panel.GetZIndex(designerItem));
+                    Panel.SetZIndex(designerItem, zIndex.Value + 1);
+                }
+            }
+        }
+
+        private void MoveThumb_DragDelta(object sender, DragDeltaEventArgs e)
+        {
+            if (designerItem != null)
+            {
+                Point dragDelta = new Point(e.HorizontalChange, e.VerticalChange);
+
+                double gridSize = 0;
+
+                var zoomControl = designerItem.Parent as ZoomControl;
+                if (zoomControl != null) gridSize = zoomControl.GridSize;
+
+                if (rotateTransform != null)
+                {
+                    dragDelta = rotateTransform.Transform(dragDelta);
+                }
+                if (double.IsNaN(Canvas.GetLeft(designerItem))) Canvas.SetLeft(designerItem, 0);
+                if (double.IsNaN(Canvas.GetTop(designerItem))) Canvas.SetTop(designerItem, 0);
+
+                var newLeft = Canvas.GetLeft(designerItem) + dragDelta.X;
+                var newTop = Canvas.GetTop(designerItem) + dragDelta.Y;
+                if (gridSize > 0)
+                {
+                    newLeft = Math.Truncate(newLeft / gridSize) * gridSize;
+                    newTop = Math.Truncate(newTop / gridSize) * gridSize;
+                }
+                Canvas.SetLeft(designerItem, newLeft);
+                Canvas.SetTop(designerItem, newTop);
+
+            }
+        }
+    }
+}