mirror of
https://github.com/QL-Win/QuickLook.git
synced 2025-09-12 18:39:45 +00:00
Code Cleanup
This commit is contained in:
ema
@@ -1,20 +1,27 @@
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// Copyright © 2017 Paddy Xu
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//
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//
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// This file is part of QuickLook program.
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//
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//
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// This program 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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//
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//
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// This program 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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//
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using ICSharpCode.AvalonEdit;
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using ICSharpCode.AvalonEdit.Document;
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using ICSharpCode.AvalonEdit.Highlighting;
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using ICSharpCode.AvalonEdit.Rendering;
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using ICSharpCode.AvalonEdit.Search;
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using QuickLook.Common.Helpers;
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using QuickLook.Common.Plugin;
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using System;
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using System.IO;
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using System.Reflection;
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@@ -24,179 +31,171 @@ using System.Windows.Controls;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Threading;
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using ICSharpCode.AvalonEdit;
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using ICSharpCode.AvalonEdit.Document;
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using ICSharpCode.AvalonEdit.Highlighting;
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using ICSharpCode.AvalonEdit.Rendering;
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using ICSharpCode.AvalonEdit.Search;
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using QuickLook.Common.Helpers;
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using QuickLook.Common.Plugin;
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using UtfUnknown;
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namespace QuickLook.Plugin.TextViewer
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namespace QuickLook.Plugin.TextViewer;
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public class TextViewerPanel : TextEditor, IDisposable
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{
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public class TextViewerPanel : TextEditor, IDisposable
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private readonly ContextObject _context;
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private bool _disposed;
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private HighlightingManager highlightingManager = HighlightingManager.Instance;
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public TextViewerPanel(string path, ContextObject context)
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{
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private readonly ContextObject _context;
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private bool _disposed;
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private HighlightingManager highlightingManager = HighlightingManager.Instance;
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_context = context;
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public TextViewerPanel(string path, ContextObject context)
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FontSize = 14;
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ShowLineNumbers = true;
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WordWrap = true;
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IsReadOnly = true;
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IsManipulationEnabled = true;
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Options.EnableEmailHyperlinks = false;
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Options.EnableHyperlinks = false;
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ContextMenu = new ContextMenu();
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ContextMenu.Items.Add(new MenuItem
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{
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_context = context;
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Header = TranslationHelper.Get("Editor_Copy", domain: Assembly.GetExecutingAssembly().GetName().Name),
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Command = ApplicationCommands.Copy
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});
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ContextMenu.Items.Add(new MenuItem
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{
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Header = TranslationHelper.Get("Editor_SelectAll",
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domain: Assembly.GetExecutingAssembly().GetName().Name),
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Command = ApplicationCommands.SelectAll
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});
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FontSize = 14;
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ShowLineNumbers = true;
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WordWrap = true;
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IsReadOnly = true;
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IsManipulationEnabled = true;
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Options.EnableEmailHyperlinks = false;
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Options.EnableHyperlinks = false;
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ManipulationInertiaStarting += Viewer_ManipulationInertiaStarting;
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ManipulationStarting += Viewer_ManipulationStarting;
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ManipulationDelta += Viewer_ManipulationDelta;
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ContextMenu = new ContextMenu();
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ContextMenu.Items.Add(new MenuItem
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PreviewMouseWheel += Viewer_MouseWheel;
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FontFamily = new FontFamily(TranslationHelper.Get("Editor_FontFamily",
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domain: Assembly.GetExecutingAssembly().GetName().Name));
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TextArea.TextView.ElementGenerators.Add(new TruncateLongLines());
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SearchPanel.Install(this);
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LoadFileAsync(path);
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}
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public HighlightingManager HighlightingManager
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{
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get => highlightingManager;
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set => highlightingManager = value;
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}
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public void Dispose()
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{
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_disposed = true;
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}
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private void Viewer_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingEventArgs e)
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{
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e.TranslationBehavior = new InertiaTranslationBehavior
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{
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InitialVelocity = e.InitialVelocities.LinearVelocity,
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DesiredDeceleration = 10.0 * 96.0 / (1000.0 * 1000.0)
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};
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}
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private void Viewer_MouseWheel(object sender, MouseWheelEventArgs e)
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{
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e.Handled = true;
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ScrollToVerticalOffset(VerticalOffset - e.Delta);
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}
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private void Viewer_ManipulationDelta(object sender, ManipulationDeltaEventArgs e)
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{
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e.Handled = true;
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var delta = e.DeltaManipulation;
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ScrollToVerticalOffset(VerticalOffset - delta.Translation.Y);
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}
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private void Viewer_ManipulationStarting(object sender, ManipulationStartingEventArgs e)
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{
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e.Mode = ManipulationModes.Translate;
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}
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private class TruncateLongLines : VisualLineElementGenerator
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{
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private const int MAX_LENGTH = 10000;
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private const string ELLIPSIS = "⁞⁞[TRUNCATED]⁞⁞";
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public override int GetFirstInterestedOffset(int startOffset)
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{
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var line = CurrentContext.VisualLine.LastDocumentLine;
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if (line.Length > MAX_LENGTH)
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{
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Header = TranslationHelper.Get("Editor_Copy", domain: Assembly.GetExecutingAssembly().GetName().Name),
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Command = ApplicationCommands.Copy
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});
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ContextMenu.Items.Add(new MenuItem
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{
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Header = TranslationHelper.Get("Editor_SelectAll",
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domain: Assembly.GetExecutingAssembly().GetName().Name),
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Command = ApplicationCommands.SelectAll
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});
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ManipulationInertiaStarting += Viewer_ManipulationInertiaStarting;
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ManipulationStarting += Viewer_ManipulationStarting;
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ManipulationDelta += Viewer_ManipulationDelta;
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PreviewMouseWheel += Viewer_MouseWheel;
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FontFamily = new FontFamily(TranslationHelper.Get("Editor_FontFamily",
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domain: Assembly.GetExecutingAssembly().GetName().Name));
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TextArea.TextView.ElementGenerators.Add(new TruncateLongLines());
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SearchPanel.Install(this);
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LoadFileAsync(path);
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}
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public HighlightingManager HighlightingManager
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{
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get => highlightingManager;
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set => highlightingManager = value;
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}
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public void Dispose()
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{
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_disposed = true;
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}
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private void Viewer_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingEventArgs e)
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{
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e.TranslationBehavior = new InertiaTranslationBehavior
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{
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InitialVelocity = e.InitialVelocities.LinearVelocity,
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DesiredDeceleration = 10.0 * 96.0 / (1000.0 * 1000.0)
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};
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}
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private void Viewer_MouseWheel(object sender, MouseWheelEventArgs e)
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{
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e.Handled = true;
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ScrollToVerticalOffset(VerticalOffset - e.Delta);
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}
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private void Viewer_ManipulationDelta(object sender, ManipulationDeltaEventArgs e)
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{
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e.Handled = true;
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var delta = e.DeltaManipulation;
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ScrollToVerticalOffset(VerticalOffset - delta.Translation.Y);
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}
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private void Viewer_ManipulationStarting(object sender, ManipulationStartingEventArgs e)
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{
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e.Mode = ManipulationModes.Translate;
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}
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private class TruncateLongLines : VisualLineElementGenerator
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{
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const int MAX_LENGTH = 10000;
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const string ELLIPSIS = "⁞⁞[TRUNCATED]⁞⁞";
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public override int GetFirstInterestedOffset(int startOffset)
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{
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var line = CurrentContext.VisualLine.LastDocumentLine;
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if (line.Length > MAX_LENGTH)
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{
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int ellipsisOffset = line.Offset + MAX_LENGTH - ELLIPSIS.Length;
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if (startOffset <= ellipsisOffset)
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return ellipsisOffset;
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}
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return -1;
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}
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public override VisualLineElement ConstructElement(int offset)
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{
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return new FormattedTextElement(ELLIPSIS, CurrentContext.VisualLine.LastDocumentLine.EndOffset - offset);
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int ellipsisOffset = line.Offset + MAX_LENGTH - ELLIPSIS.Length;
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if (startOffset <= ellipsisOffset)
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return ellipsisOffset;
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}
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return -1;
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}
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private void LoadFileAsync(string path)
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public override VisualLineElement ConstructElement(int offset)
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{
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Task.Run(() =>
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{
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const int maxLength = 5 * 1024 * 1024;
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const int maxHighlightingLength = (int)(0.5 * 1024 * 1024);
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var buffer = new MemoryStream();
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bool fileTooLong;
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using (var s = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
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{
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fileTooLong = s.Length > maxLength;
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while (s.Position < s.Length && buffer.Length < maxLength)
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{
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if (_disposed)
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break;
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var lb = new byte[8192];
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var count = s.Read(lb, 0, lb.Length);
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buffer.Write(lb, 0, count);
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}
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}
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if (_disposed)
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return;
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if (fileTooLong)
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_context.Title += " (0 ~ 5MB)";
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var bufferCopy = buffer.ToArray();
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buffer.Dispose();
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var encoding = CharsetDetector.DetectFromBytes(bufferCopy).Detected?.Encoding ??
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Encoding.Default;
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var doc = new TextDocument(encoding.GetString(bufferCopy));
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doc.SetOwnerThread(Dispatcher.Thread);
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if (_disposed)
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return;
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Dispatcher.BeginInvoke(new Action(() =>
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{
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Encoding = encoding;
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SyntaxHighlighting = bufferCopy.Length > maxHighlightingLength
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? null
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: HighlightingManager?.GetDefinitionByExtension(Path.GetExtension(path));
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Document = doc;
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_context.IsBusy = false;
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}), DispatcherPriority.Render);
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});
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return new FormattedTextElement(ELLIPSIS, CurrentContext.VisualLine.LastDocumentLine.EndOffset - offset);
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}
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}
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}
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private void LoadFileAsync(string path)
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{
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Task.Run(() =>
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{
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const int maxLength = 5 * 1024 * 1024;
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const int maxHighlightingLength = (int)(0.5 * 1024 * 1024);
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var buffer = new MemoryStream();
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bool fileTooLong;
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using (var s = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
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{
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fileTooLong = s.Length > maxLength;
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while (s.Position < s.Length && buffer.Length < maxLength)
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{
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if (_disposed)
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break;
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var lb = new byte[8192];
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var count = s.Read(lb, 0, lb.Length);
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buffer.Write(lb, 0, count);
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}
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}
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if (_disposed)
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return;
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if (fileTooLong)
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_context.Title += " (0 ~ 5MB)";
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var bufferCopy = buffer.ToArray();
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buffer.Dispose();
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var encoding = CharsetDetector.DetectFromBytes(bufferCopy).Detected?.Encoding ??
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Encoding.Default;
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var doc = new TextDocument(encoding.GetString(bufferCopy));
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doc.SetOwnerThread(Dispatcher.Thread);
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if (_disposed)
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return;
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Dispatcher.BeginInvoke(new Action(() =>
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{
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Encoding = encoding;
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SyntaxHighlighting = bufferCopy.Length > maxHighlightingLength
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? null
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: HighlightingManager?.GetDefinitionByExtension(Path.GetExtension(path));
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Document = doc;
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_context.IsBusy = false;
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}), DispatcherPriority.Render);
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});
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}
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}
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