45 lines
1.6 KiB
C#
45 lines
1.6 KiB
C#
/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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dnSpy is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using Microsoft.VisualStudio.Text;
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using Microsoft.VisualStudio.Text.Editor;
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namespace dnSpy.Contracts.Text.Editor {
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/// <summary>
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/// Text view extensions
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/// </summary>
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public static class TextViewExtensions {
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/// <summary>
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/// Scrolls the view to make the caret visible. If it's not visible, it's centered.
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/// </summary>
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/// <param name="textView">Text view</param>
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/// <param name="center">true to center the caret</param>
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public static void EnsureCaretVisible(this ITextView textView, bool center = false) {
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if (textView is null)
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throw new ArgumentNullException(nameof(textView));
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var position = textView.Caret.Position.VirtualBufferPosition;
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var options = EnsureSpanVisibleOptions.ShowStart;
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if (center)
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options |= EnsureSpanVisibleOptions.AlwaysCenter;
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textView.ViewScroller.EnsureSpanVisible(new VirtualSnapshotSpan(position, position), options);
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}
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}
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}
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