| 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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| 23 | using System.CodeDom.Compiler;
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| 24 | using System.Collections.Generic;
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| 25 | using System.ComponentModel;
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| 26 | using System.Reflection;
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| 27 | using System.Threading.Tasks;
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| 28 | using System.Windows.Documents;
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| 29 | using ICSharpCode.AvalonEdit;
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| 30 | using ICSharpCode.AvalonEdit.AddIn;
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| 31 | using ICSharpCode.AvalonEdit.CodeCompletion;
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| 32 | using ICSharpCode.AvalonEdit.Document;
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| 33 | using ICSharpCode.AvalonEdit.Editing;
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| 34 | using ICSharpCode.AvalonEdit.Highlighting;
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| 35 | using ICSharpCode.AvalonEdit.Indentation.CSharp;
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| 36 | using ICSharpCode.AvalonEdit.Search;
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| 37 | using ICSharpCode.NRefactory.Editor;
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| 38 | using ICSharpCode.SharpDevelop.Editor;
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| 39 | using Forms = System.Windows.Forms;
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| 40 | using Input = System.Windows.Input;
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| 41 | using Media = System.Windows.Media;
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| 42 |
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| 43 | namespace HeuristicLab.CodeEditor {
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| 44 | public partial class CodeEditor : CodeEditorBase {
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| 45 | private static readonly Media.Color WarningColor = Media.Colors.Blue;
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| 46 | private static readonly Media.Color ErrorColor = Media.Colors.Red;
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| 47 | private static readonly Media.Color ReadOnlyColor = Media.Colors.Moccasin;
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| 48 |
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| 49 | private const string DefaultDocumentFileName = "Document";
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| 50 | private const string DefaultTextEditorSyntaxHighlighting = "C#";
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| 51 | private const string DefaultTextEditorFontFamily = "Consolas";
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| 52 | private const double DefaultTextEditorFontSize = 13.0;
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| 53 | private const bool DefaultTextEditorShowLineNumbers = true;
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| 54 | private const bool DefaultTextEditorShowSpaces = true;
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| 55 | private const bool DefaultTextEditorShowTabs = true;
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| 56 | private const bool DefaultTextEditorConvertTabsToSpaces = true;
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| 57 | private const bool DefaultTextEditorHighlightCurrentLine = true;
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| 58 | private const int DefaultTextEditorIndentationSize = 2;
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| 59 |
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| 60 | private AssemblyLoader assemblyLoader;
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| 61 | private TextMarkerService textMarkerService;
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| 62 |
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| 63 | #region Properties
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| 64 | internal TextEditor TextEditor { get { return avalonEditWrapper.TextEditor; } }
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| 65 | internal Input.RoutedCommand CompletionCommand;
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| 66 | internal CompletionWindow CompletionWindow;
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| 67 | internal OverloadInsightWindow OverloadInsightWindow;
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| 68 |
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| 69 | private TextDocument Doc { get { return TextEditor.Document; } }
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| 70 |
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| 71 | private ITextMarker prefixMarker;
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| 72 | private string prefix = string.Empty;
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| 73 | public override string Prefix {
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| 74 | get { return prefix; }
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| 75 | set {
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| 76 | if (value == null) value = string.Empty;
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| 77 | if (prefix == value) return;
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| 78 | if (prefixMarker != null) prefixMarker.Delete();
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| 79 | Doc.Remove(0, prefix.Length);
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| 80 | prefix = value;
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| 81 | if (value.Length > 0) {
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| 82 | Doc.Insert(0, prefix);
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| 83 | prefixMarker = textMarkerService.Create(0, prefix.Length);
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| 84 | prefixMarker.BackgroundColor = ReadOnlyColor;
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| 85 | }
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| 86 | }
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| 87 | }
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| 88 |
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| 89 | private ITextMarker suffixMarker;
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| 90 | private string suffix = string.Empty;
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| 91 | public override string Suffix {
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| 92 | get { return suffix; }
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| 93 | set {
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| 94 | if (value == null) value = string.Empty;
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| 95 | if (suffix == value) return;
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| 96 | if (suffixMarker != null) suffixMarker.Delete();
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| 97 | Doc.Remove(Doc.TextLength - suffix.Length, suffix.Length);
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| 98 | suffix = value;
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| 99 | if (value.Length > 0) {
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| 100 | int offset = Doc.TextLength;
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| 101 | Doc.Insert(offset, suffix);
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| 102 | suffixMarker = textMarkerService.Create(offset, suffix.Length);
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| 103 | suffixMarker.BackgroundColor = ReadOnlyColor;
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| 104 | }
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| 105 | }
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| 106 | }
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| 107 |
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| 108 | public override string UserCode {
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| 109 | get { return Doc.GetText(prefix.Length, Doc.TextLength - suffix.Length - prefix.Length); }
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| 110 | set {
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| 111 | if (Doc.Text == value) return;
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| 112 | Doc.Replace(prefix.Length, Doc.TextLength - suffix.Length - prefix.Length, value);
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| 113 | }
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| 114 | }
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| 115 |
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| 116 | #region TextEditor
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| 117 | [DefaultValue(DefaultTextEditorSyntaxHighlighting)]
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| 118 | public string TextEditorSyntaxHighlighting {
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| 119 | get { return TextEditor.SyntaxHighlighting.Name; }
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| 120 | set {
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| 121 | TextEditor.SyntaxHighlighting = HighlightingManager.Instance.GetDefinition(value);
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| 122 | ApplyLanguageFeatures();
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| 123 | }
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| 124 | }
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| 125 |
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| 126 | [DefaultValue(DefaultTextEditorShowLineNumbers)]
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| 127 | public bool TextEditorShowLineNumbers {
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| 128 | get { return TextEditor.ShowLineNumbers; }
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| 129 | set { TextEditor.ShowLineNumbers = value; }
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| 130 | }
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| 131 |
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| 132 | [DefaultValue(DefaultTextEditorShowSpaces)]
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| 133 | public bool TextEditorShowSpaces {
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| 134 | get { return TextEditor.Options.ShowSpaces; }
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| 135 | set { TextEditor.Options.ShowSpaces = value; }
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| 136 | }
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| 137 |
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| 138 | [DefaultValue(DefaultTextEditorShowTabs)]
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| 139 | public bool TextEditorShowTabs {
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| 140 | get { return TextEditor.Options.ShowTabs; }
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| 141 | set { TextEditor.Options.ShowTabs = value; }
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| 142 | }
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| 143 |
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| 144 | [DefaultValue(DefaultTextEditorConvertTabsToSpaces)]
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| 145 | public bool TextEditorConvertTabsToSpaces {
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| 146 | get { return TextEditor.Options.ConvertTabsToSpaces; }
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| 147 | set { TextEditor.Options.ConvertTabsToSpaces = value; }
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| 148 | }
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| 149 |
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| 150 | [DefaultValue(DefaultTextEditorHighlightCurrentLine)]
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| 151 | public bool TextEditorHighlightCurrentLine {
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| 152 | get { return TextEditor.Options.HighlightCurrentLine; }
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| 153 | set { TextEditor.Options.HighlightCurrentLine = value; }
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| 154 | }
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| 155 |
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| 156 | [DefaultValue(DefaultTextEditorIndentationSize)]
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| 157 | public int TextEditorIndentationSize {
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| 158 | get { return TextEditor.Options.IndentationSize; }
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| 159 | set { TextEditor.Options.IndentationSize = value; }
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| 160 | }
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| 161 | #endregion
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| 162 |
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| 163 | public override bool ReadOnly {
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| 164 | get { return TextEditor.IsReadOnly; }
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| 165 | set { TextEditor.IsReadOnly = value; }
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| 166 | }
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| 167 | #endregion
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| 168 |
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| 169 | public CodeEditor() {
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| 170 | InitializeComponent();
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| 171 | InitializeTextEditor();
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| 172 | }
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| 173 |
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| 174 | private void InitializeTextEditor() {
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| 175 | #region AssemblyLoader
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| 176 | assemblyLoader = new AssemblyLoader();
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| 177 | assemblyLoader.AssembliesLoading += (sender, args) => OnAssembliesLoading(args.Value);
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| 178 | assemblyLoader.InternalAssembliesLoaded += (sender, args) => OnInternalAssembliesLoaded(args.Value);
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| 179 | assemblyLoader.AssembliesLoaded += (sender, args) => OnAssembliesLoaded(args.Value);
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| 180 | assemblyLoader.AssembliesUnloading += (sender, args) => OnAssembliesUnloading(args.Value);
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| 181 | assemblyLoader.InternalAssembliesUnloaded += (sender, args) => OnInternalAssembliesUnloaded(args.Value);
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| 182 | assemblyLoader.AssembliesUnloaded += (sender, args) => OnAssembliesUnloaded(args.Value);
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| 183 | #endregion
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| 184 |
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| 185 | #region TextMarkerService
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| 186 | textMarkerService = new TextMarkerService(TextEditor.Document);
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| 187 | TextEditor.TextArea.TextView.BackgroundRenderers.Add(textMarkerService);
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| 188 | TextEditor.TextArea.TextView.LineTransformers.Add(textMarkerService);
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| 189 | TextEditor.TextArea.TextView.Services.AddService(typeof(ITextMarkerService), textMarkerService);
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| 190 | #endregion
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| 191 |
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| 192 | #region ReadOnlySectionProvider
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| 193 | TextEditor.TextArea.ReadOnlySectionProvider = new MethodDefinitionReadOnlySectionProvider(this);
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| 194 | #endregion
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| 195 |
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| 196 | #region SearchPanel
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| 197 | SearchPanel.Install(TextEditor);
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| 198 | #endregion
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| 199 |
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| 200 | #region CompletionCommand
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| 201 | CompletionCommand = new Input.RoutedCommand();
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| 202 | CompletionCommand.InputGestures.Add(new Input.KeyGesture(Input.Key.Space, Input.ModifierKeys.Control));
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| 203 | #endregion
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| 204 |
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| 205 | #region MoveLinesUpCommand
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| 206 | var moveLinesUpCommand = new Input.RoutedCommand();
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| 207 | moveLinesUpCommand.InputGestures.Add(new Input.KeyGesture(Input.Key.Up, Input.ModifierKeys.Alt));
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| 208 | var moveLinesUpCommandBinding = new Input.CommandBinding(moveLinesUpCommand, (sender, args) => ExecuteMoveLinesCommand(MovementDirection.Up));
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| 209 | TextEditor.CommandBindings.Add(moveLinesUpCommandBinding);
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| 210 | #endregion
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| 211 |
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| 212 | #region MoveLinesDownCommand
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| 213 | var moveLinesDownCommand = new Input.RoutedCommand();
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| 214 | moveLinesDownCommand.InputGestures.Add(new Input.KeyGesture(Input.Key.Down, Input.ModifierKeys.Alt));
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| 215 | var moveLinesDownCommandBinding = new Input.CommandBinding(moveLinesDownCommand, (sender, args) => ExecuteMoveLinesCommand(MovementDirection.Down));
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| 216 | TextEditor.CommandBindings.Add(moveLinesDownCommandBinding);
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| 217 | #endregion
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| 218 |
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| 219 | #region GoToLineCommand
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| 220 | var goToLineCommand = new Input.RoutedCommand();
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| 221 | goToLineCommand.InputGestures.Add(new Input.KeyGesture(Input.Key.G, Input.ModifierKeys.Control));
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| 222 | var goToLineCommandBinding = new Input.CommandBinding(goToLineCommand, (sender, args) => ExecuteGoToLineCommand());
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| 223 | TextEditor.CommandBindings.Add(goToLineCommandBinding);
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| 224 | #endregion
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| 225 |
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| 226 | TextEditorSyntaxHighlighting = DefaultTextEditorSyntaxHighlighting;
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| 227 | TextEditorShowLineNumbers = DefaultTextEditorShowLineNumbers;
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| 228 | TextEditorShowSpaces = DefaultTextEditorShowSpaces;
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| 229 | TextEditorShowTabs = DefaultTextEditorShowTabs;
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| 230 | TextEditorConvertTabsToSpaces = DefaultTextEditorConvertTabsToSpaces;
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| 231 | TextEditorHighlightCurrentLine = DefaultTextEditorHighlightCurrentLine;
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| 232 | TextEditorIndentationSize = DefaultTextEditorIndentationSize;
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| 233 |
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| 234 | Doc.FileName = DefaultDocumentFileName;
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| 235 |
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| 236 | TextEditor.FontFamily = new Media.FontFamily(DefaultTextEditorFontFamily);
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| 237 | TextEditor.FontSize = DefaultTextEditorFontSize;
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| 238 | TextEditor.Options.EnableVirtualSpace = true;
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| 239 | TextEditor.TextArea.IndentationStrategy = new CSharpIndentationStrategy(TextEditor.Options);
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| 240 |
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| 241 | TextEditor.TextChanged += (sender, args) => {
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| 242 | foreach (var marker in textMarkerService.TextMarkers) {
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| 243 | if (marker == prefixMarker || marker == suffixMarker) continue;
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| 244 | if (marker.Length != (int)marker.Tag)
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| 245 | marker.Delete();
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| 246 | else {
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| 247 | int caretOffset = TextEditor.CaretOffset;
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| 248 | var line = Doc.GetLineByOffset(marker.StartOffset);
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| 249 | int lineEndOffset = line.EndOffset;
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| 250 | if (caretOffset == lineEndOffset) // special case for markers beyond line length
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| 251 | marker.Delete();
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| 252 | }
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| 253 | }
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| 254 | OnTextEditorTextChanged();
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| 255 | };
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| 256 | }
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| 257 |
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| 258 | #region Assembly Management
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| 259 | public override void AddAssembly(Assembly a) {
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| 260 | assemblyLoader.AddAssembly(a);
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| 261 | }
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| 262 |
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| 263 | public override void AddAssemblies(IEnumerable<Assembly> assemblies) {
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| 264 | assemblyLoader.AddAssemblies(assemblies);
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| 265 | }
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| 266 |
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| 267 | public override async Task AddAssembliesAsync(IEnumerable<Assembly> assemblies) {
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| 268 | await assemblyLoader.AddAssembliesAsync(assemblies);
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| 269 | }
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| 270 |
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| 271 | public override void RemoveAssembly(Assembly a) {
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| 272 | assemblyLoader.RemoveAssembly(a);
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| 273 | }
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| 274 | #endregion
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| 275 |
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| 276 | public override void ScrollToPosition(int line, int column) {
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| 277 | var segment = GetSegmentAtLocation(line, column);
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| 278 | TextEditor.CaretOffset = segment.Offset + segment.Length;
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| 279 | TextEditor.ScrollToLine(line);
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| 280 | }
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| 281 |
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| 282 | public override void ScrollAfterPrefix() {
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| 283 | var location = Doc.GetLocation(prefix.Length);
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| 284 | ScrollToPosition(location.Line, location.Column);
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| 285 | }
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| 286 |
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| 287 | private enum MovementDirection { Up, Down }
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| 288 | private void ExecuteMoveLinesCommand(MovementDirection movementDirection) {
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| 289 | var textArea = TextEditor.TextArea;
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| 290 | var selection = textArea.Selection;
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| 291 | var caret = textArea.Caret;
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| 292 |
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| 293 | var selectionStartPosition = selection.StartPosition;
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| 294 | var selectionEndPosition = selection.EndPosition;
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| 295 | var caretPosition = caret.Position;
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| 296 | int caretOffset = caret.Offset;
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| 297 |
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| 298 | bool advancedPositionCalcualtion = selection is RectangleSelection || !selection.IsEmpty;
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| 299 |
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| 300 | int selectionStartOffset, selectionEndOffset;
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| 301 | if (advancedPositionCalcualtion) {
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| 302 | if (selectionStartPosition.CompareTo(selectionEndPosition) > 0) {
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| 303 | var temp = selectionStartPosition;
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| 304 | selectionStartPosition = selectionEndPosition;
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| 305 | selectionEndPosition = temp;
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| 306 | }
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| 307 | selectionStartOffset = Doc.GetOffset(selectionStartPosition.Location);
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| 308 | selectionEndOffset = Doc.GetOffset(selectionEndPosition.Location);
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| 309 | } else {
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| 310 | selectionStartOffset = selectionEndOffset = TextEditor.SelectionStart;
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| 311 | }
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| 312 |
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| 313 | int selectionLength = selection.Length;
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| 314 |
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| 315 | var startLine = Doc.GetLineByOffset(selectionStartOffset);
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| 316 | var endLine = Doc.GetLineByOffset(selectionEndOffset);
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| 317 |
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| 318 | if (selection.IsMultiline && selectionEndOffset == endLine.Offset) {
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| 319 | if (movementDirection == MovementDirection.Down && endLine.TotalLength == 0) return;
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| 320 | endLine = endLine.PreviousLine;
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| 321 | }
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| 322 |
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| 323 | if (movementDirection == MovementDirection.Up && startLine.LineNumber == 1) return;
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| 324 | if (movementDirection == MovementDirection.Down && endLine.LineNumber == Doc.LineCount) return;
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| 325 |
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| 326 | int startOffset = startLine.Offset;
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| 327 | string primaryText = Doc.GetText(startOffset, endLine.EndOffset - startOffset);
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| 328 | string primaryDelimiter = Doc.GetText(endLine.EndOffset, endLine.DelimiterLength);
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| 329 |
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| 330 | var secondaryLine = movementDirection == MovementDirection.Up ? startLine.PreviousLine : endLine.NextLine;
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| 331 | string secondaryText = Doc.GetText(secondaryLine.Offset, secondaryLine.Length);
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| 332 | string secondaryDelimiter = Doc.GetText(secondaryLine.EndOffset, secondaryLine.DelimiterLength);
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| 333 |
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| 334 | if (string.IsNullOrEmpty(primaryText + primaryDelimiter) || string.IsNullOrEmpty(secondaryText + secondaryDelimiter)) return;
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| 335 |
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| 336 | if (movementDirection == MovementDirection.Up) {
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| 337 | string replacementText = primaryText + secondaryDelimiter + secondaryText + primaryDelimiter;
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| 338 | Doc.Replace(secondaryLine.Offset, replacementText.Length, replacementText);
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| 339 | int correctionLength = secondaryText.Length + secondaryDelimiter.Length;
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| 340 | selectionStartOffset -= correctionLength;
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| 341 | caretOffset -= correctionLength;
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| 342 | } else {
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| 343 | string replacementText = secondaryText + primaryDelimiter + primaryText + secondaryDelimiter;
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| 344 | Doc.Replace(startLine.Offset, replacementText.Length, replacementText);
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| 345 | int correctionLength = secondaryText.Length + primaryDelimiter.Length;
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| 346 | selectionStartOffset += correctionLength;
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| 347 | caretOffset += correctionLength;
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| 348 | }
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| 349 |
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| 350 | if (advancedPositionCalcualtion) {
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| 351 | var newSelectionStartLocation = Doc.GetLocation(selectionStartOffset);
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| 352 | int selectionLineOffset = newSelectionStartLocation.Line - Math.Min(selectionStartPosition.Line, selectionEndPosition.Line);
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| 353 | selectionStartPosition.Line += selectionLineOffset;
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| 354 | selectionEndPosition.Line += selectionLineOffset;
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| 355 | if (selectionEndPosition.Line > Doc.LineCount) {
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| 356 | var newLocation = Doc.GetLocation(Doc.TextLength);
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| 357 | selectionEndPosition.Line = newLocation.Line;
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| 358 | selectionEndPosition.Column = newLocation.Column;
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| 359 | selectionEndPosition.VisualColumn = newLocation.Column - 1;
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| 360 | selectionEndPosition.IsAtEndOfLine = selectionStartPosition.IsAtEndOfLine; // actual value does not matter; needed for comparison
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| 361 | }
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| 362 |
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| 363 | if (selectionStartPosition == selectionEndPosition)
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| 364 | textArea.ClearSelection();
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| 365 | else {
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| 366 | if (selection is RectangleSelection)
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| 367 | textArea.Selection = new RectangleSelection(textArea, selectionStartPosition, selectionEndPosition);
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| 368 | else
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| 369 | textArea.Selection = new SimpleSelection(textArea, selectionStartPosition, selectionEndPosition);
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| 370 | }
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| 371 | } else {
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| 372 | TextEditor.SelectionStart = selectionStartOffset;
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| 373 | TextEditor.SelectionLength = selectionLength;
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| 374 | }
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| 375 |
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| 376 | var newCaretLocation = Doc.GetLocation(Math.Min(caretOffset, Doc.TextLength));
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| 377 | var newCaretPosition = new TextViewPosition(newCaretLocation);
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| 378 | if (caretPosition.VisualColumn > caretPosition.Column) {
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| 379 | newCaretPosition.VisualColumn = caretPosition.VisualColumn;
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| 380 | }
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| 381 | caret.Position = newCaretPosition;
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| 382 | }
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| 383 |
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| 384 | private void ExecuteGoToLineCommand() {
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| 385 | using (var dlg = new GoToLineDialog(TextEditor)) {
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| 386 | var result = dlg.ShowDialog(this);
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| 387 | if (result == Forms.DialogResult.OK) {
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| 388 | int lineNumber = dlg.Line;
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| 389 | var line = Doc.GetLineByNumber(lineNumber);
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| 390 | int offset = line.Offset;
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| 391 | if (TextUtilities.GetLeadingWhitespace(Doc, line).Length > 0)
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| 392 | offset = TextUtilities.GetNextCaretPosition(Doc, offset, LogicalDirection.Forward, CaretPositioningMode.WordBorder);
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| 393 | TextEditor.CaretOffset = offset;
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| 394 | }
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| 395 | }
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| 396 | }
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| 397 |
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| 398 | #region Compiler Errors
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| 399 | public override void ShowCompileErrors(CompilerErrorCollection compilerErrors) {
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| 400 | if (compilerErrors == null) return;
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| 401 |
|
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| 402 | textMarkerService.RemoveAll(x => x != prefixMarker && x != suffixMarker);
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| 403 |
|
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| 404 | foreach (CompilerError error in compilerErrors) {
|
|---|
| 405 | var startLocation = Doc.GetLocation(prefix.Length);
|
|---|
| 406 | if (error.Line == 1) error.Column += startLocation.Column;
|
|---|
| 407 | error.Line += startLocation.Line;
|
|---|
| 408 | AddErrorMarker(error);
|
|---|
| 409 | }
|
|---|
| 410 | }
|
|---|
| 411 |
|
|---|
| 412 | private void AddErrorMarker(CompilerError error) {
|
|---|
| 413 | var segment = GetSegmentAtLocation(error.Line, error.Column);
|
|---|
| 414 | var marker = textMarkerService.Create(segment.Offset, segment.Length);
|
|---|
| 415 | marker.MarkerTypes = TextMarkerTypes.SquigglyUnderline;
|
|---|
| 416 | marker.MarkerColor = error.IsWarning ? WarningColor : ErrorColor;
|
|---|
| 417 | marker.Tag = segment.Length;
|
|---|
| 418 | }
|
|---|
| 419 |
|
|---|
| 420 | private ISegment GetSegmentAtLocation(int line, int column) {
|
|---|
| 421 | line = Math.Max(Doc.GetLocation(prefix.Length).Line, line - 1);
|
|---|
| 422 | line = Math.Min(Doc.GetLocation(Doc.TextLength - suffix.Length).Line, line);
|
|---|
| 423 |
|
|---|
| 424 | var startOffset = Doc.GetOffset(line, column);
|
|---|
| 425 | var lineEndOffset = Doc.GetLineByNumber(line).EndOffset;
|
|---|
| 426 | var endOffset = TextUtilities.GetNextCaretPosition(Doc, startOffset, LogicalDirection.Forward, CaretPositioningMode.WordBorder);
|
|---|
| 427 | if (endOffset < 0) endOffset = startOffset;
|
|---|
| 428 | endOffset = Math.Min(lineEndOffset + 1, endOffset);
|
|---|
| 429 |
|
|---|
| 430 | var segment = new TextSegment { StartOffset = startOffset, EndOffset = endOffset };
|
|---|
| 431 |
|
|---|
| 432 | return segment;
|
|---|
| 433 | }
|
|---|
| 434 | #endregion
|
|---|
| 435 |
|
|---|
| 436 | private void ApplyLanguageFeatures() {
|
|---|
| 437 | switch (TextEditorSyntaxHighlighting) {
|
|---|
| 438 | case "XML":
|
|---|
| 439 | XmlLanguageFeatures.Apply(this);
|
|---|
| 440 | break;
|
|---|
| 441 | default:
|
|---|
| 442 | CSharpLanguageFeatures.Apply(this);
|
|---|
| 443 | break;
|
|---|
| 444 | }
|
|---|
| 445 | }
|
|---|
| 446 | }
|
|---|
| 447 | }
|
|---|
