UI problem and feature deficiency rollup

[bombasticbob]

bugs and deficiencies with UI in current version (2/1/2020)

• [x] multi-line edit, replace selection borks everything (single-line seems to be fixed now)
• [x] menu hotkey activation within menu context not working
• [ ] menu bar does not change drop-down when mouse moves under a different menu bar item
• [x] menu popup containing popup is greyed and should have an arrow indicating it's a popup, but clicking displays 2nd popup underneath the entire menu (not to the side, as it should)
• [ ] text invalidation not working properly - see issue #17
  • [ ] select via shift-up/down does not properly invalidate [but select rect is actually ok]
  • [ ] adding text at the bottom does not invalidate; however, text is added ok
• [ ] scrolling list does not track mouse and scroll bar properly [quirky]
• [ ] handling tabs and indents

Lower priority items

• [ ] no 'splitter' for top level frames. at minimum need vertical splitter. Each 'split' window would have its own tabs and nav buttons for them.
• [ ] tree list not implemented (will need for project view)
• [ ] certain document properties should show up in the status bar, along with a button to edit them
• [ ] need dialog resource, menu resource, and bitmap/icon resource editor
• [ ] need to properly support drag/drop
• [ ] need to support D-bus embedding at a minimum [both as client AND server]
• [ ] need to support 'dynamic menu' like open doc list under 'Window'

[bombasticbob]

the problems listed here are basically "gross" deficiencies that get in the way of having a functional editor.