RichTextBox CodeBlock CodeFormatter Styles

[Max]

Hello,

I am trying to give my CodeBlocks inside a RichTextBox.Document a certain style.

Every character inside the CodeBlock should have the same FontFamily and FontSize.

To do this I am going the following way:

1.) Clear all existing styles inside the RichTextBox.CodeFormatter.

2.) Add my own styles.

The code looks like this:

            StyleDefinition styleWhite = new StyleDefinition(cl.GetCodeLanguage.Name + "StyleWhite", StyleType.Character);
            styleWhite.SpanProperties.ForeColor = Colors.White;
            styleWhite.SpanProperties.FontFamily = Wpf.Fonts.Fonts.GetFont(eFont.Consolas);
            styleWhite.SpanProperties.FontSize = Unit.PointToDip(fontSize);


            StyleDefinition styleKeyWord = new StyleDefinition(cl.GetCodeLanguage.Name + "StyleKeyword", StyleType.Character);
            styleKeyWord.SpanProperties.ForeColor  = colorKeyWord;
            styleKeyWord.SpanProperties.FontFamily = Wpf.Fonts.Fonts.GetFont(eFont.Consolas);
            styleKeyWord.SpanProperties.FontSize   = Unit.PointToDip(fontSize);

            StyleDefinition styleString = new StyleDefinition(cl.GetCodeLanguage.Name + "StyleString", StyleType.Character);
            styleString.SpanProperties.ForeColor = colorKeyWord;
            styleString.SpanProperties.FontFamily = Wpf.Fonts.Fonts.GetFont(eFont.Consolas);
            styleString.SpanProperties.FontSize = Unit.PointToDip(fontSize);

            StyleDefinition styleMethod = new StyleDefinition(cl.GetCodeLanguage.Name + "styleMethod", StyleType.Character);
            styleMethod.SpanProperties.ForeColor = colorKeyWord;
            styleMethod.SpanProperties.FontFamily = Wpf.Fonts.Fonts.GetFont(eFont.Consolas);
            styleMethod.SpanProperties.FontSize = Unit.PointToDip(fontSize);

            StyleDefinition styleComment = new StyleDefinition(cl.GetCodeLanguage.Name + "StyleComment", StyleType.Character);
            styleComment.SpanProperties.ForeColor = colorKeyWord;
            styleComment.SpanProperties.FontFamily = Wpf.Fonts.Fonts.GetFont(eFont.Consolas);
            styleComment.SpanProperties.FontSize = Unit.PointToDip(fontSize);



            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.Comment);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.Keyword);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.Method);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.StringLiteral);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.Attributes);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.CharacterLiteral);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.Constants);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.Data);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.ExcludedCode);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.Identifier);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.NumberLiteral);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.Operator);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.PreprocessorKeyword);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.Variable);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.WhiteSpace);
            doc.CodeFormatter.UnregisterClassificationType(ClassificationTypes.Literal);

 

            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.Comment, styleComment);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.Keyword,  styleKeyWord);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.Method,  styleMethod);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.StringLiteral,  styleString);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.Attributes,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.CharacterLiteral,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.Constants,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.Data,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.ExcludedCode,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.Identifier,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.NumberLiteral,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.Operator,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.PreprocessorKeyword,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.Variable,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.WhiteSpace,  styleWhite);
            doc.CodeFormatter.RegisterClassificationType(ClassificationTypes.Literal,  styleWhite);

 

The result of this code is, that I get different FontSizes inside the CodeBlock. See attached *.gif.

So my question is: Which styles do I need to change or add, to give CodeBlocks a consitent look?

[Dimitar]

Hello Max,

You need to set the font size of the following built-in styles as well:

var style = this.radRichTextBox.Document.StyleRepository["CodeBlock"];
style.SpanProperties.FontSize = Unit.PointToDip(fontSize);

style = this.radRichTextBox.Document.StyleRepository["CodeBlockLine"];
style.SpanProperties.FontSize = Unit.PointToDip(fontSize);

style = this.radRichTextBox.Document.StyleRepository["CodeBlockLineAlt"];
style.SpanProperties.FontSize = Unit.PointToDip(fontSize);

I hope this helps. Should you have any other questions, do not hesitate to ask.

Regards,
Dimitar
Progress Telerik

[Max]

Thank you Dimitar,

this is the perfect answer to my problem. Works like a charm!

I have to say, that the Document.StyleRepository was already on my radar, before I started this post.

But even if you stop the application while debugging, you can't see these styles by their name. They are somehow hidden in some sub-sub-styling.

Anyway - you made my day. :-)

[Dimitar]

Hello Max,

I am glad that this works for you. In this case, a better way to determine the used styles is to export the document using the docx or xaml formats. This way you can see which styles are applied. 

Do not hesitate to contact us if you have other questions.

Regards,
Dimitar
Progress Telerik

[Max]

Thank you Dimitar,

to export and look into the results style is a really good hint for the future.

Max