82 lines
2.8 KiB
C#
82 lines
2.8 KiB
C#
// 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;
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using UnityEngine;
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namespace Unity.CodeEditor.Rendering
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{
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internal sealed class CurrentLineHighlightRenderer : IBackgroundRenderer
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{
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#region Fields
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private int _line;
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private readonly TextView _textView;
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#endregion
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#region Properties
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internal int Line {
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get { return _line; }
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set {
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if (_line != value) {
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_line = value;
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_textView.InvalidateLayer(Layer);
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}
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}
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}
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public KnownLayer Layer => KnownLayer.Background;
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internal Color BackgroundColor { get; set; } = TextEditorColors.CurrentLineBackground;
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internal Color BorderColor { get; set; } = TextEditorColors.CurrentLineBorder;
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#endregion
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internal CurrentLineHighlightRenderer(TextView textView)
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{
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_textView = textView ?? throw new ArgumentNullException(nameof(textView));
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_textView.BackgroundRenderers.Add(this);
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_line = 0;
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}
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public void Draw(TextView textView)
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{
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if (!_textView.Options.HighlightCurrentLine)
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return;
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var builder = new BackgroundGeometryBuilder();
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var visualLine = _textView.GetVisualLine(_line);
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if (visualLine == null) return;
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var linePosY = visualLine.VisualTop - _textView.ScrollOffset.y;
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builder.AddRectangle(textView, new Rect(0, linePosY, textView.Bounds.width, visualLine.Height));
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/*var geometry = builder.CreateGeometry();
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if (geometry != null) {
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drawingContext.DrawGeometry(BackgroundBrush, BorderPen, geometry);
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}*/
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}
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}
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}
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