[2659] | 1 | // CSharp Editor Example with Code Completion
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| 2 | // Copyright (c) 2006, Daniel Grunwald
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| 3 | // All rights reserved.
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| 4 | //
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| 5 | // Redistribution and use in source and binary forms, with or without modification, are
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| 6 | // permitted provided that the following conditions are met:
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| 7 | //
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| 8 | // - Redistributions of source code must retain the above copyright notice, this list
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| 9 | // of conditions and the following disclaimer.
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| 10 | //
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| 11 | // - Redistributions in binary form must reproduce the above copyright notice, this list
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| 12 | // of conditions and the following disclaimer in the documentation and/or other materials
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| 13 | // provided with the distribution.
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| 14 | //
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| 15 | // - Neither the name of the ICSharpCode team nor the names of its contributors may be used to
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| 16 | // endorse or promote products derived from this software without specific prior written
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| 17 | // permission.
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| 18 | //
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| 19 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &AS IS& AND ANY EXPRESS
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| 20 | // OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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| 21 | // AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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| 22 | // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 23 | // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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| 25 | // IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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| 26 | // OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 |
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| 28 | using System;
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[4068] | 29 | using System.CodeDom.Compiler;
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[2659] | 30 | using System.Collections.Generic;
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[4068] | 31 | using System.Diagnostics;
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[2659] | 32 | using System.Drawing;
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| 33 | using System.IO;
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[4068] | 34 | using System.Reflection;
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[2659] | 35 | using System.Threading;
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[4068] | 36 | using System.Windows.Forms;
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[2659] | 37 | using HeuristicLab.Common.Resources;
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[4068] | 38 | using ICSharpCode.TextEditor;
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| 39 | using ICSharpCode.TextEditor.Document;
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| 40 | using Dom = ICSharpCode.SharpDevelop.Dom;
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[2659] | 41 | using NRefactory = ICSharpCode.NRefactory;
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| 42 |
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| 43 | namespace HeuristicLab.CodeEditor {
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| 44 |
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| 45 | public partial class CodeEditor : UserControl {
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| 46 |
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| 47 | #region Fields & Properties
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| 48 |
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| 49 | internal Dom.ProjectContentRegistry projectContentRegistry;
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| 50 | internal Dom.DefaultProjectContent projectContent;
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| 51 | internal Dom.ParseInformation parseInformation = new Dom.ParseInformation();
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| 52 | Dom.ICompilationUnit lastCompilationUnit;
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| 53 | Thread parserThread;
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| 54 |
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| 55 | /// <summary>
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| 56 | /// Many SharpDevelop.Dom methods take a file name, which is really just a unique identifier
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| 57 | /// for a file - Dom methods don't try to access code files on disk, so the file does not have
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| 58 | /// to exist.
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| 59 | /// SharpDevelop itself uses internal names of the kind "[randomId]/Class1.cs" to support
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| 60 | /// code-completion in unsaved files.
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| 61 | /// </summary>
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| 62 | public const string DummyFileName = "edited.cs";
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| 63 |
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| 64 | private IDocument Doc {
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| 65 | get {
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| 66 | return textEditor.Document;
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| 67 | }
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| 68 | }
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| 69 |
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| 70 | private string prefix = "";
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| 71 | private TextMarker prefixMarker =
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| 72 | new TextMarker(0, 1, TextMarkerType.SolidBlock, Color.LightGray) {
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| 73 | IsReadOnly = true,
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| 74 | };
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| 75 | public string Prefix {
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| 76 | get {
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| 77 | return prefix;
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| 78 | }
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| 79 | set {
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| 80 | if (value == null) value = "";
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| 81 | if (prefix == value) return;
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| 82 | Doc.MarkerStrategy.RemoveMarker(prefixMarker);
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| 83 | Doc.Remove(0, prefix.Length);
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| 84 | prefix = value;
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| 85 | if (value.Length > 0) {
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| 86 | Doc.Insert(0, value);
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| 87 | prefixMarker.Offset = 0;
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| 88 | prefixMarker.Length = prefix.Length;
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| 89 | Doc.MarkerStrategy.AddMarker(prefixMarker);
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| 90 | }
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| 91 | Doc.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.WholeTextArea));
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| 92 | Doc.CommitUpdate();
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| 93 | }
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| 94 | }
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| 95 |
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| 96 | private string suffix = "";
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| 97 | private TextMarker suffixMarker =
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| 98 | new TextMarker(0, 1, TextMarkerType.SolidBlock, Color.LightGray) {
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| 99 | IsReadOnly = true,
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| 100 | };
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| 101 | public string Suffix {
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| 102 | get {
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| 103 | return suffix;
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| 104 | }
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| 105 | set {
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| 106 | if (value == null) value = "";
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| 107 | if (suffix == value) return;
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| 108 | Doc.MarkerStrategy.RemoveMarker(suffixMarker);
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| 109 | Doc.Remove(Doc.TextLength - suffix.Length, suffix.Length);
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| 110 | suffix = value;
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| 111 | if (value.Length > 0) {
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| 112 | suffixMarker.Offset = Doc.TextLength;
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| 113 | Doc.Insert(Doc.TextLength, value);
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| 114 | suffixMarker.Length = suffix.Length;
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| 115 | Doc.MarkerStrategy.AddMarker(suffixMarker);
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| 116 | }
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| 117 | Doc.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.WholeTextArea));
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| 118 | Doc.CommitUpdate();
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| 119 | }
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| 120 | }
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| 121 |
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| 122 | public string UserCode {
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| 123 | get {
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| 124 | return Doc.GetText(
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| 125 | prefix.Length,
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| 126 | Doc.TextLength - suffix.Length - prefix.Length);
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| 127 | }
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| 128 | set {
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| 129 | Doc.Replace(prefix.Length, Doc.TextLength - suffix.Length - prefix.Length, value);
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| 130 | Doc.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.WholeTextArea));
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| 131 | Doc.CommitUpdate();
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| 132 | }
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| 133 | }
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| 134 |
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[11436] | 135 | public bool ReadOnly {
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| 136 | get { return Doc.ReadOnly; }
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| 137 | set { Doc.ReadOnly = value; }
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| 138 | }
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| 139 |
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[2659] | 140 | #endregion
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| 141 |
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| 142 | public event EventHandler TextEditorValidated;
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| 143 |
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| 144 | protected void OnTextEditorValidated() {
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| 145 | if (TextEditorValidated != null)
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| 146 | TextEditorValidated(this, EventArgs.Empty);
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| 147 | }
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| 148 |
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[10359] | 149 | public event EventHandler TextEditorTextChanged;
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| 150 |
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| 151 | protected void OnTextEditorTextChanged() {
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| 152 | if (TextEditorTextChanged != null)
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| 153 | TextEditorTextChanged(this, EventArgs.Empty);
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| 154 | }
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| 155 |
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[2659] | 156 | public CodeEditor() {
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| 157 | InitializeComponent();
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| 158 |
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| 159 | textEditor.ActiveTextAreaControl.TextEditorProperties.SupportReadOnlySegments = true;
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| 160 |
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| 161 | textEditor.SetHighlighting("C#");
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| 162 | textEditor.ShowEOLMarkers = false;
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| 163 | textEditor.ShowInvalidLines = false;
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| 164 | HostCallbackImplementation.Register(this);
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| 165 | CodeCompletionKeyHandler.Attach(this, textEditor);
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| 166 | ToolTipProvider.Attach(this, textEditor);
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| 167 |
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| 168 | projectContentRegistry = new Dom.ProjectContentRegistry(); // Default .NET 2.0 registry
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[2762] | 169 | try {
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| 170 | string persistencePath = Path.Combine(Path.GetTempPath(), "HeuristicLab.CodeEditor");
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| 171 | if (!Directory.Exists(persistencePath))
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[2765] | 172 | Directory.CreateDirectory(persistencePath);
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| 173 | FileStream fs = File.Create(Path.Combine(persistencePath, "test.tmp"));
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| 174 | fs.Close();
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[2762] | 175 | File.Delete(Path.Combine(persistencePath, "test.tmp"));
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[2765] | 176 | // if we made it this far, enable on-disk parsing cache
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[2762] | 177 | projectContentRegistry.ActivatePersistence(persistencePath);
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[5287] | 178 | } catch (NotSupportedException) {
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| 179 | } catch (IOException) {
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| 180 | } catch (System.Security.SecurityException) {
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| 181 | } catch (UnauthorizedAccessException) {
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| 182 | } catch (ArgumentException) {
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[2765] | 183 | }
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[2659] | 184 | projectContent = new Dom.DefaultProjectContent();
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| 185 | projectContent.Language = Dom.LanguageProperties.CSharp;
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| 186 | }
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| 187 |
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| 188 | protected override void OnLoad(EventArgs e) {
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| 189 | base.OnLoad(e);
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| 190 |
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| 191 | if (DesignMode)
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| 192 | return;
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| 193 |
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[2673] | 194 | textEditor.ActiveTextAreaControl.TextArea.KeyEventHandler += new ICSharpCode.TextEditor.KeyEventHandler(TextArea_KeyEventHandler);
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[2659] | 195 | textEditor.ActiveTextAreaControl.TextArea.DoProcessDialogKey += new DialogKeyProcessor(TextArea_DoProcessDialogKey);
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| 196 |
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| 197 | parserThread = new Thread(ParserThread);
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| 198 | parserThread.IsBackground = true;
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| 199 | parserThread.Start();
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| 200 |
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| 201 | textEditor.Validated += (s, a) => { OnTextEditorValidated(); };
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[10359] | 202 | textEditor.TextChanged += (s, a) => { OnTextEditorTextChanged(); };
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[2659] | 203 | InitializeImageList();
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| 204 | }
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| 205 |
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| 206 | private void InitializeImageList() {
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| 207 | imageList1.Images.Clear();
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[5287] | 208 | imageList1.Images.Add("Icons.16x16.Class.png", VSImageLibrary.Class);
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| 209 | imageList1.Images.Add("Icons.16x16.Method.png", VSImageLibrary.Method);
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| 210 | imageList1.Images.Add("Icons.16x16.Property.png", VSImageLibrary.Properties);
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| 211 | imageList1.Images.Add("Icons.16x16.Field.png", VSImageLibrary.Field);
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| 212 | imageList1.Images.Add("Icons.16x16.Enum.png", VSImageLibrary.Enum);
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| 213 | imageList1.Images.Add("Icons.16x16.NameSpace.png", VSImageLibrary.Namespace);
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| 214 | imageList1.Images.Add("Icons.16x16.Event.png", VSImageLibrary.Event);
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[2659] | 215 | }
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| 216 |
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[2673] | 217 | #region keyboard handlers: filter input in read-only areas
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| 218 |
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| 219 | bool TextArea_KeyEventHandler(char ch) {
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| 220 | int caret = textEditor.ActiveTextAreaControl.Caret.Offset;
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| 221 | return caret < prefix.Length || caret > Doc.TextLength - suffix.Length;
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[2659] | 222 | }
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| 223 |
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| 224 | bool TextArea_DoProcessDialogKey(Keys keyData) {
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| 225 | if (keyData == Keys.Return) {
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| 226 | int caret = textEditor.ActiveTextAreaControl.Caret.Offset;
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| 227 | if (caret < prefix.Length ||
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| 228 | caret > Doc.TextLength - suffix.Length) {
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| 229 | return true;
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| 230 | }
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| 231 | }
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| 232 | return false;
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| 233 | }
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| 234 |
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[2673] | 235 | #endregion
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| 236 |
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[2659] | 237 | public void ScrollAfterPrefix() {
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| 238 | int lineNr = prefix != null ? Doc.OffsetToPosition(prefix.Length).Line : 0;
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| 239 | textEditor.ActiveTextAreaControl.JumpTo(lineNr + 1);
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| 240 | }
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| 241 |
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| 242 | private List<TextMarker> errorMarkers = new List<TextMarker>();
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| 243 | private List<Bookmark> errorBookmarks = new List<Bookmark>();
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| 244 | public void ShowCompileErrors(CompilerErrorCollection compilerErrors, string filename) {
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| 245 | Doc.MarkerStrategy.RemoveAll(m => errorMarkers.Contains(m));
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| 246 | Doc.BookmarkManager.RemoveMarks(m => errorBookmarks.Contains(m));
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| 247 | errorMarkers.Clear();
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| 248 | errorBookmarks.Clear();
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| 249 | errorLabel.Text = "";
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| 250 | errorLabel.ToolTipText = null;
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| 251 | if (compilerErrors == null)
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| 252 | return;
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| 253 | foreach (CompilerError error in compilerErrors) {
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| 254 | if (!error.FileName.EndsWith(filename)) {
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[5218] | 255 | errorLabel.Text = "Error in generated code";
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[2659] | 256 | errorLabel.ToolTipText = string.Format("{0}{1}:{2} -> {3}",
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| 257 | errorLabel.ToolTipText != null ? (errorLabel.ToolTipText + "\n\n") : "",
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| 258 | error.Line, error.Column,
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| 259 | error.ErrorText);
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| 260 | continue;
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| 261 | }
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| 262 | var startPosition = Doc.OffsetToPosition(prefix.Length);
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| 263 | if (error.Line == 1)
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| 264 | error.Column += startPosition.Column;
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| 265 | error.Line += startPosition.Line;
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| 266 | AddErrorMarker(error);
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| 267 | AddErrorBookmark(error);
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| 268 | }
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| 269 | Doc.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.WholeTextArea));
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| 270 | Doc.CommitUpdate();
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| 271 | }
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| 272 |
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| 273 | private void AddErrorMarker(CompilerError error) {
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| 274 | var segment = GetSegmentAtOffset(error.Line, error.Column);
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| 275 | Color color = error.IsWarning ? Color.Blue : Color.Red;
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| 276 | var marker = new TextMarker(segment.Offset, segment.Length, TextMarkerType.WaveLine, color) {
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| 277 | ToolTip = error.ErrorText,
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| 278 | };
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| 279 | errorMarkers.Add(marker);
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| 280 | Doc.MarkerStrategy.AddMarker(marker);
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| 281 | }
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| 282 |
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| 283 | private void AddErrorBookmark(CompilerError error) {
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| 284 | var bookmark = new ErrorBookmark(Doc, new TextLocation(error.Column, error.Line - 1));
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| 285 | errorBookmarks.Add(bookmark);
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| 286 | Doc.BookmarkManager.AddMark(bookmark);
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| 287 | }
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| 288 |
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| 289 | private AbstractSegment GetSegmentAtOffset(int lineNr, int columnNr) {
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| 290 | lineNr = Math.Max(Doc.OffsetToPosition(prefix.Length).Line, lineNr);
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| 291 | lineNr = Math.Min(Doc.OffsetToPosition(Doc.TextLength - suffix.Length).Line, lineNr);
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| 292 | var line = Doc.GetLineSegment(lineNr - 1);
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| 293 | columnNr = Math.Max(0, columnNr);
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| 294 | columnNr = Math.Min(line.Length, columnNr);
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| 295 | var word = line.GetWord(columnNr);
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| 296 | AbstractSegment segment = new AbstractSegment();
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| 297 | if (word != null) {
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| 298 | segment.Offset = line.Offset + word.Offset;
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| 299 | segment.Length = word.Length;
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| 300 | } else {
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| 301 | segment.Offset = line.Offset + columnNr - 1;
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| 302 | segment.Length = 1;
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| 303 | }
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| 304 | return segment;
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| 305 | }
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| 306 |
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| 307 | private HashSet<Assembly> assemblies = new HashSet<Assembly>();
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| 308 | public IEnumerable<Assembly> ReferencedAssemblies {
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| 309 | get { return assemblies; }
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| 310 | }
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| 311 | public void AddAssembly(Assembly a) {
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| 312 | ShowMessage("Loading " + a.GetName().Name + "...");
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[10359] | 313 | if (!assemblies.Contains(a)) {
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| 314 | var reference = projectContentRegistry.GetProjectContentForReference(a.GetName().Name, a.Location);
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| 315 | projectContent.AddReferencedContent(reference);
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| 316 | assemblies.Add(a);
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| 317 | }
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[2659] | 318 | ShowMessage("Ready");
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| 319 | }
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| 320 | public void RemoveAssembly(Assembly a) {
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| 321 | ShowMessage("Unloading " + a.GetName().Name + "...");
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[10359] | 322 | if (assemblies.Contains(a)) {
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| 323 | var content = projectContentRegistry.GetExistingProjectContent(a.Location);
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| 324 | if (content != null) {
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| 325 | projectContent.ReferencedContents.Remove(content);
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| 326 | projectContentRegistry.UnloadProjectContent(content);
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| 327 | }
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[2667] | 328 | }
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[2659] | 329 | ShowMessage("Ready");
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| 330 | }
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| 331 |
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[2719] | 332 | private bool runParser = true;
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[2659] | 333 | private void ParserThread() {
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| 334 | BeginInvoke(new MethodInvoker(delegate { parserThreadLabel.Text = "Loading mscorlib..."; }));
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| 335 | projectContent.AddReferencedContent(projectContentRegistry.Mscorlib);
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| 336 | ParseStep();
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| 337 | BeginInvoke(new MethodInvoker(delegate { parserThreadLabel.Text = "Ready"; }));
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[2719] | 338 | while (runParser && !IsDisposed) {
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| 339 | ParseStep();
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| 340 | Thread.Sleep(2000);
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| 341 | }
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| 342 | }
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| 343 |
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| 344 | private void ParseStep() {
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[2667] | 345 | try {
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[2719] | 346 | string code = null;
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| 347 | Invoke(new MethodInvoker(delegate { code = textEditor.Text; }));
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| 348 | TextReader textReader = new StringReader(code);
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| 349 | Dom.ICompilationUnit newCompilationUnit;
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| 350 | NRefactory.SupportedLanguage supportedLanguage;
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| 351 | supportedLanguage = NRefactory.SupportedLanguage.CSharp;
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| 352 | using (NRefactory.IParser p = NRefactory.ParserFactory.CreateParser(supportedLanguage, textReader)) {
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| 353 | p.ParseMethodBodies = false;
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| 354 | p.Parse();
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| 355 | newCompilationUnit = ConvertCompilationUnit(p.CompilationUnit);
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[2667] | 356 | }
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[2719] | 357 | projectContent.UpdateCompilationUnit(lastCompilationUnit, newCompilationUnit, DummyFileName);
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| 358 | lastCompilationUnit = newCompilationUnit;
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| 359 | parseInformation.SetCompilationUnit(newCompilationUnit);
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[5287] | 360 | } catch { }
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[2659] | 361 | }
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| 362 |
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| 363 | Dom.ICompilationUnit ConvertCompilationUnit(NRefactory.Ast.CompilationUnit cu) {
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| 364 | Dom.NRefactoryResolver.NRefactoryASTConvertVisitor converter;
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| 365 | converter = new Dom.NRefactoryResolver.NRefactoryASTConvertVisitor(projectContent);
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| 366 | cu.AcceptVisitor(converter, null);
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| 367 | return converter.Cu;
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| 368 | }
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| 369 |
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| 370 | private void ShowMessage(string m) {
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| 371 | if (this.Handle == null)
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| 372 | return;
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| 373 | BeginInvoke(new Action(() => parserThreadLabel.Text = m));
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| 374 | }
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| 375 |
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| 376 | private void toolStripStatusLabel1_Click(object sender, EventArgs e) {
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| 377 | var proc = new Process();
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| 378 | proc.StartInfo.FileName = sharpDevelopLabel.Tag.ToString();
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| 379 | proc.Start();
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| 380 | }
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[2667] | 381 |
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| 382 | private void CodeEditor_Resize(object sender, EventArgs e) {
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| 383 | var textArea = textEditor.ActiveTextAreaControl.TextArea;
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| 384 | var vScrollBar = textEditor.ActiveTextAreaControl.VScrollBar;
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| 385 | var hScrollBar = textEditor.ActiveTextAreaControl.HScrollBar;
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| 386 |
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| 387 | textArea.SuspendLayout();
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| 388 | textArea.Width = textEditor.Width - vScrollBar.Width;
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| 389 | textArea.Height = textEditor.Height - hScrollBar.Height;
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| 390 | textArea.ResumeLayout();
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| 391 |
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| 392 | vScrollBar.SuspendLayout();
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| 393 | vScrollBar.Location = new Point(textArea.Width, 0);
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| 394 | vScrollBar.Height = textArea.Height;
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| 395 | vScrollBar.ResumeLayout();
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| 396 |
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| 397 | hScrollBar.SuspendLayout();
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| 398 | hScrollBar.Location = new Point(0, textArea.Height);
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| 399 | hScrollBar.Width = textArea.Width;
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| 400 | hScrollBar.ResumeLayout();
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| 401 | }
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[2659] | 402 | }
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| 403 | }
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