Instead, keep a list of tags to explicitely remove around (the list of
unchecked toggles), and remove only these tags, so the tags that have
no widget in the UI are not affected by the insert_tags logic.
Add gimp_text_buffer_get_iter_at_index() which does the reverse thing
than the already existing function gimp_text_buffer_get_iter_index().
Use the new function when cursor-navigation lines. Add "gboolean
layout_index" to both functions, which if TRUE indicates that the
passed in/out index is an index into the PangoLayout's content rather
than the text buffer's. When dealing with layout indices, take into
account the additional characters we insert into the serialized markup
(and thus the layout) for each character that is tagged with spacing.
Add a list of available baseline tags to GimpTextBuffer and
automatically create baseline tags as needed. They get serialized as
<span rise="value">, so add attribute and value parameters to the
buffer's tag_to_name() and name_to_tag() functions. Properly managing
the rise's amount is a TODO, currently each keystroke changes the
baseline by 1024 pango units, which might be whatever depending on the
output grid.
instead of using the toggles only to change the style of selected text.
Introduces a list of "insert tags" in GimpTextBuffer that is applied
on newly inserted text if it exists. Clear the list on each content
or cursor/selection change, so we always display wthe style at the
cursor unless the buttons were clicked explicitely.
- keep around tags for styles in GimpTextBuffer. For now only bold,
italic, underline and strikethrough.
- add GimpTextStyleEditor, a widget which allows setting tags on
a GimpTextBuffer's selection.
- add serialize/deserialize code to/from pango markup using
GtkTextBuffer's rich text (de)serialization infrastructure.
Doesn't produce or handle <span> yet.
Pull all text buffer utility functions as methods and use
GimpTextBuffer all over the place instead of GtkTextBuffer.
Some actually usefuly features coming soon...