81 lines
3.0 KiB
C#
81 lines
3.0 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 UnityEngine;
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using UnityEngine.UIElements;
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using Debug = System.Diagnostics.Debug;
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namespace Unity.CodeEditor.Rendering
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{
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/// <summary>
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/// Base class for known layers.
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/// </summary>
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internal class Layer : VisualElement
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{
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protected readonly TextView TextView;
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protected readonly KnownLayer KnownLayer;
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LayerPosition _Position;
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readonly IMGUIContainer _backgroundIMGUIContainer;
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internal Layer(TextView textView, KnownLayer knownLayer)
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{
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Debug.Assert(textView != null);
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TextView = textView;
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KnownLayer = knownLayer;
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pickingMode = PickingMode.Ignore;
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style.position = Position.Absolute;
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style.left = 0;
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style.top = 0;
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style.right = 0;
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style.bottom = 0; //
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_backgroundIMGUIContainer = new IMGUIContainer(OnBackgroundGUI);
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_backgroundIMGUIContainer.pickingMode = PickingMode.Ignore;
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_backgroundIMGUIContainer.focusable = false;
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_backgroundIMGUIContainer.style.position = Position.Absolute;
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_backgroundIMGUIContainer.style.left = 0;
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_backgroundIMGUIContainer.style.top = 0;
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_backgroundIMGUIContainer.style.right = 0;
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_backgroundIMGUIContainer.style.bottom = 0;
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Add(_backgroundIMGUIContainer);
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}
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internal LayerPosition LayerPosition
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{
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get { return _Position; }
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set { _Position = value; }
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}
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internal void InvalidateBackground()
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{
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_backgroundIMGUIContainer.MarkDirtyRepaint();
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}
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void OnBackgroundGUI()
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{
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if (Event.current.type != EventType.Repaint)
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return;
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if (!TextView.VisualLinesValid)
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return;
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TextView.RenderBackground(KnownLayer, _backgroundIMGUIContainer.contentRect);
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}
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}
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}
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