创建插件项目
新建项目，在扩展性标签中，选择Editor Classifier模版，命名为ShaderEditor，点击确定。
Visual Studio为我们生成了如下几个文件。
ShaderEditorFormat.cs文件的默认代码如下：
1 [Export(typeof(EditorFormatDefinition))]
2 [ClassificationType(ClassificationTypeNames = "ShaderEditor")]
3 [Name("ShaderEditor")]
4 [UserVisible(true)] //this should be visible to the end user
5 [Order(Before = Priority.Default)] //set the priority to be after the default classifiers
6 internal sealed class ShaderEditorFormat : ClassificationFormatDefinition {
7 /// <summary>
8 /// Defines the visual format for the "ShaderEditor" classification type
9 /// </summary>
10 public ShaderEditorFormat() {
11 this.DisplayName = "ShaderEditor"; //human readable version of the name
12 this.BackgroundColor = Colors.BlueViolet;
13 this.TextDecorations = System.Windows.TextDecorations.Underline;
14 }
15 }
这段代码定义了一个名为"ShaderEditor"的着色类型，编译工程并运行，我们可以在Visual Studio实验实例的工具->选项->字体和颜色中找到一个名为"ShaderEditor"的条目。同时我们会发现所有文本文件的颜色都变成了Colors.BlueViolet并带上了下划线。修改this.DisplayName = "ShaderEditor"的内容，可以改变在字体和颜色中显示的名字。下面的格式设置可以任意修改成喜欢的样式，但要注意在这里的格式只是插件首次安装时的默认设置，这些条目和其它着色选项一样，都可以被用户任意更改。
3. 创建GLSL的着色类型我们已经了解了如何将着色类型添加到Visual Studio，现在修改ShaderEditorFormat.cs，添加我们的着色类型。
1 [Export(typeof(EditorFormatDefinition))]
2 [ClassificationType(ClassificationTypeNames = "GLSLText")]
3 [Name("GLSLText")]
4 [UserVisible(true)]
5 [Order(Before = Priority.Default)]
6 internal sealed class GLSLTextFormatDefinition : ClassificationFormatDefinition {
7 public GLSLTextFormatDefinition() {
8 this.DisplayName = "GLSL文本";
9 this.ForegroundColor = Colors.Brown;
10 }
11 }
12
13 [Export(typeof(EditorFormatDefinition))]
14 [ClassificationType(ClassificationTypeNames = "GLSLIdentifier")]
15 [Name("GLSLIdentifier")]
16 [UserVisible(true)]
17 [Order(Before = Priority.Default)]
18 internal sealed class GLSLIdentifierFormatDefinition : ClassificationFormatDefinition {
19 public GLSLIdentifierFormatDefinition() {
20 this.DisplayName = "GLSL标识符";
21 this.ForegroundColor = Colors.Brown;
22 }
23 }
24
25 [Export(typeof(EditorFormatDefinition))]
26 [ClassificationType(ClassificationTypeNames = "GLSLComment")]
27 [Name("GLSLComment")]
28 [UserVisible(true)]
29 [Order(Before = Priority.Default)]
30 internal sealed class GLSLCommentFormatDefinition : ClassificationFormatDefinition {
31 public GLSLCommentFormatDefinition() {
32 this.DisplayName = "GLSL注释";
33 this.ForegroundColor = Colors.DarkGray;
34 }
35 }
36
37 [Export(typeof(EditorFormatDefinition))]
38 [ClassificationType(ClassificationTypeNames = "GLSLKeyword")]
39 [Name("GLSLKeyword")]
40 [UserVisible(true)]
41 [Order(Before = Priority.Default)]
42 internal sealed class GLSLKeywordFormatDefinition : ClassificationFormatDefinition {
43 public GLSLKeywordFormatDefinition() {
44 this.DisplayName = "GLSL关键字";
45 this.ForegroundColor = Colors.Blue;
46 }
47 }
48
49 [Export(typeof(EditorFormatDefinition))]
50 [ClassificationType(ClassificationTypeNames = "GLSLClass")]
51 [Name("GLSLClass")]
52 [UserVisible(true)]
53 [Order(Before = Priority.Default)]
54 internal sealed class GLSLClassFormatDefinition : ClassificationFormatDefinition {
55 public GLSLClassFormatDefinition() {
56 this.DisplayName = "GLSL类型";
57 this.ForegroundColor = Colors.Green;
58 }
59 }
60
61 [Export(typeof(EditorFormatDefinition))]
62 [ClassificationType(ClassificationTypeNames = "GLSLQualifier")]
63 [Name("GLSLQualifier")]
64 [UserVisible(true)]
65 [Order(Before = Priority.Default)]
66 internal sealed class GLSLQualifierFormatDefinition : ClassificationFormatDefinition {
67 public GLSLQualifierFormatDefinition() {
68 this.DisplayName = "GLSL限定符";
69 this.ForegroundColor = Colors.Pink;
70 }
71 }
72
73 [Export(typeof(EditorFormatDefinition))]
74 [ClassificationType(ClassificationTypeNames = "GLSLVariable")]
75 [Name("GLSLVariable")]
76 [UserVisible(true)]
77 [Order(Before = Priority.Default)]
78 internal sealed class GLSLVariableFormatDefinition : ClassificationFormatDefinition {
79 public GLSLVariableFormatDefinition() {
80 this.DisplayName = "GLSL系统变量";
81 this.ForegroundColor = Colors.DarkOrange;
82 }
83 }
84
85 [Export(typeof(EditorFormatDefinition))]
86 [ClassificationType(ClassificationTypeNames = "GLSLFunction")]
87 [Name("GLSLFunction")]
88 [UserVisible(true)]
89 [Order(Before = Priority.Default)]
90 internal sealed class GLSLFunctionFormatDefinition : ClassificationFormatDefinition {
91 public GLSLFunctionFormatDefinition() {
92 this.DisplayName = "GLSL系统函数";
93 this.ForegroundColor = Colors.DarkTurquoise;
94 }
95 }
4. 导出着色类型
Editor Classifier使用了MEF框架，关于MEF的具体细节，请参考MSDN的相关文档。
我们需要注意的是，在MEF中，光定义了着色类型还不够，我们需要导出一个ClassificationTypeDefinition，才能在系统中生效。
打开ShaderEditorType.cs，我们看到系统生成的代码如下：
1 internal static class ShaderEditorClassificationDefinition {
2 [Export(typeof(ClassificationTypeDefinition))]
3 [Name("ShaderEditor")]
4 internal static ClassificationTypeDefinition ShaderEditorType = null;
5 }这里的Name与之前默认生成的ShaderEditor相同，同理，我们将这里的代码修改成方才定义的类型
1 internal static class ShaderEditorClassificationDefinition {
2 [Export(typeof(ClassificationTypeDefinition))]
3 [Name("GLSLText")]
4 internal static ClassificationTypeDefinition GLSLTextType = null;
5
6 [Export(typeof(ClassificationTypeDefinition))]
7 [Name("GLSLIdentifier")]
8 internal static ClassificationTypeDefinition GLSLIdentifierType = null;
9
10 [Export(typeof(ClassificationTypeDefinition))]
11 [Name("GLSLComment")]
12 internal static ClassificationTypeDefinition GLSLCommentType = null;
13
14 [Export(typeof(ClassificationTypeDefinition))]
15 [Name("GLSLKeyword")]
16 internal static ClassificationTypeDefinition GLSLKeywordType = null;
17
18 [Export(typeof(ClassificationTypeDefinition))]
19 [Name("GLSLClass")]
20 internal static ClassificationTypeDefinition GLSLClassType = null;
21
22 [Export(typeof(ClassificationTypeDefinition))]
23 [Name("GLSLQualifier")]
24 internal static ClassificationTypeDefinition GLSLQualifierType = null;
25
26 [Export(typeof(ClassificationTypeDefinition))]
27 [Name("GLSLVariable")]
28 internal static ClassificationTypeDefinition GLSLVariableType = null;
29
30 [Export(typeof(ClassificationTypeDefinition))]
31 [Name("GLSLFunction")]
32 internal static ClassificationTypeDefinition GLSLFunctionType = null;
33 }
5. 关联文件类型
打开ShaderEditor.cs
1 [Export(typeof(IClassifierProvider))]
2 [ContentType("text")]
3 internal class ShaderEditorProvider : IClassifierProvider {
4 [Import]
5 internal IClassificationTypeRegistryService ClassificationRegistry = null; // Set via MEF
6
7 public IClassifier GetClassifier(ITextBuffer buffer) {
8 return buffer.Properties.GetOrCreateSingletonProperty<ShaderEditor>(delegate { return new ShaderEditor(ClassificationRegistry); });
9 }
10 }