behaviour of GetNextSibling() consistent between wxMSW and generic versions.
- Merged wxRichTextAttr and wxTextAttrEx into wxTextAttr, and added a font table
to wxRichTextBuffer to reduce wxFont consumption and increase performance.
behaviour of GetNextSibling() consistent between wxMSW and generic versions.
- Merged wxRichTextAttr and wxTextAttrEx into wxTextAttr, and added a font table
to wxRichTextBuffer to reduce wxFont consumption and increase performance.