From Text to Screen

HikoGUI uses hi::text as its native text-type for use in the text-widget, text-field, text-shaper and labels. A hi::text is a string of hi::character (std::basic_string<hi::character>).

Each hi::character contains the following information:

• The full grapheme-cluster as specified by: Unicode Annex #29
• The language and region of the text-run, the script can be derived from the current and surrounding characters.
• The phrasing of the text-run, simular: https://developer.mozilla.org/en-US/docs/Web/HTML/Content_categories#phrasing_content.
• The text-theme to use, the actual style is selected from the other information in the character.

This information is needed for:

• Determine text-style, fonts and text-runs.
• Properly render the text-run by the open-type font-file, this requires the language and script.
• Spell and grammar check requires the language and region of a text-run.
• Text-to-speech requires the language and region to select a voice.

Conversion to hi::text