From 080f1697e97e13461ec6df4d31c8924d01257a1b Mon Sep 17 00:00:00 2001
From: Roy Ben Shabat <Roy.mail.net@gmail.com>
Date: Tue, 9 Apr 2019 01:47:48 +0300
Subject: MERGE

---
 .../Rendering/InlineObjectRun.cs                   | 145 +++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Rendering/InlineObjectRun.cs

(limited to 'Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Rendering/InlineObjectRun.cs')

diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Rendering/InlineObjectRun.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Rendering/InlineObjectRun.cs
new file mode 100644
index 000000000..7448a8007
--- /dev/null
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Rendering/InlineObjectRun.cs
@@ -0,0 +1,145 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+using System.Windows.Media.TextFormatting;
+
+namespace Tango.Scripting.Editors.Rendering
+{
+	/// <summary>
+	/// A inline UIElement in the document.
+	/// </summary>
+	public class InlineObjectElement : VisualLineElement
+	{
+		/// <summary>
+		/// Gets the inline element that is displayed.
+		/// </summary>
+		public UIElement Element { get; private set; }
+		
+		/// <summary>
+		/// Creates a new InlineObjectElement.
+		/// </summary>
+		/// <param name="documentLength">The length of the element in the document. Must be non-negative.</param>
+		/// <param name="element">The element to display.</param>
+		public InlineObjectElement(int documentLength, UIElement element)
+			: base(1, documentLength)
+		{
+			if (element == null)
+				throw new ArgumentNullException("element");
+			this.Element = element;
+		}
+		
+		/// <inheritdoc/>
+		public override TextRun CreateTextRun(int startVisualColumn, ITextRunConstructionContext context)
+		{
+			if (context == null)
+				throw new ArgumentNullException("context");
+			
+			return new InlineObjectRun(1, this.TextRunProperties, this.Element);
+		}
+	}
+	
+	/// <summary>
+	/// A text run with an embedded UIElement.
+	/// </summary>
+	public class InlineObjectRun : TextEmbeddedObject
+	{
+		UIElement element;
+		int length;
+		TextRunProperties properties;
+		internal Size desiredSize;
+		
+		/// <summary>
+		/// Creates a new InlineObjectRun instance.
+		/// </summary>
+		/// <param name="length">The length of the TextRun.</param>
+		/// <param name="properties">The <see cref="TextRunProperties"/> to use.</param>
+		/// <param name="element">The <see cref="UIElement"/> to display.</param>
+		public InlineObjectRun(int length, TextRunProperties properties, UIElement element)
+		{
+			if (length <= 0)
+				throw new ArgumentOutOfRangeException("length", length, "Value must be positive");
+			if (properties == null)
+				throw new ArgumentNullException("properties");
+			if (element == null)
+				throw new ArgumentNullException("element");
+			
+			this.length = length;
+			this.properties = properties;
+			this.element = element;
+		}
+		
+		/// <summary>
+		/// Gets the element displayed by the InlineObjectRun.
+		/// </summary>
+		public UIElement Element {
+			get { return element; }
+		}
+		
+		/// <summary>
+		/// Gets the VisualLine that contains this object. This property is only available after the object
+		/// was added to the text view.
+		/// </summary>
+		public VisualLine VisualLine { get; internal set; }
+		
+		/// <inheritdoc/>
+		public override LineBreakCondition BreakBefore {
+			get { return LineBreakCondition.BreakDesired; }
+		}
+		
+		/// <inheritdoc/>
+		public override LineBreakCondition BreakAfter {
+			get { return LineBreakCondition.BreakDesired; }
+		}
+		
+		/// <inheritdoc/>
+		public override bool HasFixedSize {
+			get { return true; }
+		}
+		
+		/// <inheritdoc/>
+		public override CharacterBufferReference CharacterBufferReference {
+			get { return new CharacterBufferReference(); }
+		}
+		
+		/// <inheritdoc/>
+		public override int Length {
+			get { return length; }
+		}
+		
+		/// <inheritdoc/>
+		public override TextRunProperties Properties {
+			get { return properties; }
+		}
+		
+		/// <inheritdoc/>
+		public override TextEmbeddedObjectMetrics Format(double remainingParagraphWidth)
+		{
+			double baseline = TextBlock.GetBaselineOffset(element);
+			if (double.IsNaN(baseline))
+				baseline = desiredSize.Height;
+			return new TextEmbeddedObjectMetrics(desiredSize.Width, desiredSize.Height, baseline);
+		}
+		
+		/// <inheritdoc/>
+		public override Rect ComputeBoundingBox(bool rightToLeft, bool sideways)
+		{
+			if (this.element.IsArrangeValid) {
+				double baseline = TextBlock.GetBaselineOffset(element);
+				if (double.IsNaN(baseline))
+					baseline = desiredSize.Height;
+				return new Rect(new Point(0, -baseline), desiredSize);
+			} else {
+				return Rect.Empty;
+			}
+		}
+		
+		/// <inheritdoc/>
+		public override void Draw(DrawingContext drawingContext, Point origin, bool rightToLeft, bool sideways)
+		{
+		}
+	}
+}
-- 
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