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.ComponentModel; |
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21 | using System.Globalization; |
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22 | |
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23 | namespace ICSharpCode.AvalonEdit.Highlighting |
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24 | { |
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25 | /// <summary> |
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26 | /// Converts between strings and <see cref="IHighlightingDefinition"/> by treating the string as the definition name |
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27 | /// and calling <c>HighlightingManager.Instance.<see cref="HighlightingManager.GetDefinition">GetDefinition</see>(name)</c>. |
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28 | /// </summary> |
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29 | public sealed class HighlightingDefinitionTypeConverter : TypeConverter |
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30 | { |
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31 | /// <inheritdoc/> |
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32 | public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) |
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33 | { |
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34 | if (sourceType == typeof(string)) |
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35 | return true; |
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36 | else |
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37 | return base.CanConvertFrom(context, sourceType); |
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38 | } |
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39 | |
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40 | /// <inheritdoc/> |
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41 | public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) |
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42 | { |
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43 | string definitionName = value as string; |
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44 | if (definitionName != null) |
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45 | return HighlightingManager.Instance.GetDefinition(definitionName); |
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46 | else |
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47 | return base.ConvertFrom(context, culture, value); |
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48 | } |
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49 | |
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50 | /// <inheritdoc/> |
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51 | public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) |
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52 | { |
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53 | if (destinationType == typeof(string)) |
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54 | return true; |
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55 | else |
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56 | return base.CanConvertTo(context, destinationType); |
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57 | } |
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58 | |
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59 | /// <inheritdoc/> |
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60 | public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) |
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61 | { |
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62 | IHighlightingDefinition definition = value as IHighlightingDefinition; |
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63 | if (definition != null && destinationType == typeof(string)) |
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64 | return definition.Name; |
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65 | else |
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66 | return base.ConvertTo(context, culture, value, destinationType); |
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67 | } |
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68 | } |
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69 | } |
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