[11700] | 1 | // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team |
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| 2 | // |
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| 3 | // Permission is hereby granted, free of charge, to any person obtaining a copy of this |
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| 4 | // software and associated documentation files (the "Software"), to deal in the Software |
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| 5 | // without restriction, including without limitation the rights to use, copy, modify, merge, |
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| 6 | // publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons |
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| 7 | // to whom the Software is furnished to do so, subject to the following conditions: |
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| 8 | // |
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| 9 | // The above copyright notice and this permission notice shall be included in all copies or |
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| 10 | // substantial portions of the Software. |
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| 11 | // |
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| 12 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
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| 13 | // INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
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| 14 | // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE |
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| 15 | // FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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| 16 | // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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| 17 | // DEALINGS IN THE SOFTWARE. |
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| 18 | |
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| 19 | using System; |
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| 20 | using System.IO; |
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| 21 | using System.Windows; |
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| 22 | using System.Windows.Media; |
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| 23 | using ICSharpCode.AvalonEdit.Highlighting; |
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| 24 | |
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| 25 | namespace ICSharpCode.AvalonEdit.Utils |
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| 26 | { |
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| 27 | // TODO: This class (and derived classes) is currently unused; decide whether to keep it. |
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| 28 | // (until this is decided, keep the class internal) |
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| 29 | |
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| 30 | /// <summary> |
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| 31 | /// A text writer that supports creating spans of highlighted text. |
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| 32 | /// </summary> |
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| 33 | abstract class RichTextWriter : TextWriter |
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| 34 | { |
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| 35 | /// <summary> |
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| 36 | /// Gets called by the RichTextWriter base class when a BeginSpan() method |
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| 37 | /// that is not overwritten gets called. |
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| 38 | /// </summary> |
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| 39 | protected abstract void BeginUnhandledSpan(); |
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| 40 | |
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| 41 | /// <summary> |
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| 42 | /// Writes the RichText instance. |
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| 43 | /// </summary> |
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| 44 | public void Write(RichText richText) |
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| 45 | { |
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| 46 | Write(richText, 0, richText.Length); |
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| 47 | } |
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| 48 | |
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| 49 | /// <summary> |
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| 50 | /// Writes the RichText instance. |
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| 51 | /// </summary> |
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| 52 | public virtual void Write(RichText richText, int offset, int length) |
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| 53 | { |
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| 54 | foreach (var section in richText.GetHighlightedSections(offset, length)) { |
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| 55 | BeginSpan(section.Color); |
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| 56 | Write(richText.Text.Substring(section.Offset, section.Length)); |
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| 57 | EndSpan(); |
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| 58 | } |
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| 59 | } |
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| 60 | |
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| 61 | /// <summary> |
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| 62 | /// Begin a colored span. |
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| 63 | /// </summary> |
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| 64 | public virtual void BeginSpan(Color foregroundColor) |
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| 65 | { |
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| 66 | BeginUnhandledSpan(); |
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| 67 | } |
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| 68 | |
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| 69 | /// <summary> |
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| 70 | /// Begin a span with modified font weight. |
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| 71 | /// </summary> |
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| 72 | public virtual void BeginSpan(FontWeight fontWeight) |
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| 73 | { |
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| 74 | BeginUnhandledSpan(); |
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| 75 | } |
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| 76 | |
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| 77 | /// <summary> |
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| 78 | /// Begin a span with modified font style. |
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| 79 | /// </summary> |
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| 80 | public virtual void BeginSpan(FontStyle fontStyle) |
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| 81 | { |
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| 82 | BeginUnhandledSpan(); |
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| 83 | } |
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| 84 | |
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| 85 | /// <summary> |
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| 86 | /// Begin a span with modified font family. |
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| 87 | /// </summary> |
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| 88 | public virtual void BeginSpan(FontFamily fontFamily) |
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| 89 | { |
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| 90 | BeginUnhandledSpan(); |
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| 91 | } |
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| 92 | |
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| 93 | /// <summary> |
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| 94 | /// Begin a highlighted span. |
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| 95 | /// </summary> |
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| 96 | public virtual void BeginSpan(Highlighting.HighlightingColor highlightingColor) |
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| 97 | { |
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| 98 | BeginUnhandledSpan(); |
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| 99 | } |
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| 100 | |
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| 101 | /// <summary> |
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| 102 | /// Begin a span that links to the specified URI. |
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| 103 | /// </summary> |
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| 104 | public virtual void BeginHyperlinkSpan(Uri uri) |
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| 105 | { |
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| 106 | BeginUnhandledSpan(); |
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| 107 | } |
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| 108 | |
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| 109 | /// <summary> |
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| 110 | /// Marks the end of the current span. |
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| 111 | /// </summary> |
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| 112 | public abstract void EndSpan(); |
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| 113 | |
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| 114 | /// <summary> |
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| 115 | /// Increases the indentation level. |
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| 116 | /// </summary> |
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| 117 | public abstract void Indent(); |
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| 118 | |
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| 119 | /// <summary> |
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| 120 | /// Decreases the indentation level. |
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| 121 | /// </summary> |
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| 122 | public abstract void Unindent(); |
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| 123 | } |
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| 124 | } |
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