87 lines
3.2 KiB
C#
87 lines
3.2 KiB
C#
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// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.UIElements;
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namespace Unity.CodeEditor.Rendering
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{
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internal sealed class TextLayer : Layer
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{
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internal int Index;
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private readonly List<VisualLineDrawingVisual> _visuals = new List<VisualLineDrawingVisual>();
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private readonly IMGUIContainer _imguiContainer;
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internal TextLayer(TextView textView) : base(textView, KnownLayer.Text)
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{
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_imguiContainer = new IMGUIContainer(OnGUI);
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_imguiContainer.pickingMode = PickingMode.Ignore;
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_imguiContainer.focusable = false;
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_imguiContainer.style.position = Position.Absolute;
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_imguiContainer.style.left = 0;
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_imguiContainer.style.top = 0;
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_imguiContainer.style.right = 0;
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_imguiContainer.style.bottom = 0;
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Add(_imguiContainer);
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}
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internal void SetVisualLines(ICollection<VisualLine> visualLines)
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{
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_visuals.Clear();
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foreach (var newLine in visualLines)
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{
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var visual = newLine.Render();
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_visuals.Add(visual);
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}
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ArrangeVisuals();
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_imguiContainer.MarkDirtyRepaint();
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}
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private void OnGUI()
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{
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if (Event.current.type != EventType.Repaint)
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return;
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foreach (var visual in _visuals)
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{
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float pos = 0;
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foreach (var textLine in visual.VisualLine.TextLines)
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{
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float x = Mathf.Round(visual.RenderTransform.x);
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float y = Mathf.Round(pos + visual.RenderTransform.y);
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var guiStyle = textLine.TextParagraphProperties.GUIStyle;
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var rect = new Rect(x, y, _imguiContainer.contentRect.width - x, textLine.Height);
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guiStyle.Draw(rect, textLine.MarkupGUIContent, false, false, false, false);
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pos += textLine.Height;
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}
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}
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}
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void ArrangeVisuals()
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{
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TextView.ArrangeTextLayer(_visuals);
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}
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}
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}
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