Toolbar and button bar unification

Currently have button farm. And will only have more buttons in the future.

• Will want a bundle_info.xml way of listing the buttons provided by a bundle
• May also want to be able to dynamically add/remove buttons?
• Need way to disable/enable buttons so the usable buttons can be context sensitive (eg., mouse modes)

Prototype with Roger Pincombe's ​Office 2010 Style Ribbon Toolbar in HTML/CSS/JS

• buttons are hardcoded into section
• remove text hints with context menu
• balloon help for icons
• have to patch to fix size/location/color of balloon help
• not updated since 2011 (except README.md)

Bugs / Enhancements

• section text that has letters with descenders have the descenders clipped
• want colors to match Qt UI elements
• icons should have transparent backgrounds
• hintless version should resize to lower height
• should hintless version (optionally?) have 2 rows of smaller buttons?

Reactions/Feedback

Eric

• Esthetically very clean looking
• On Mac, too tall by about 50%
  • 1/8" blank space above tabs
  • 1/4" blank between bottom of icon text and top of category text
• Non-full scrollbar on right even though there is nothing to scroll
• As mentioned in bugs, "hintless" version is the same size, even after restarting
• Icons differ in size between "hinted" and hintless version, which may be okay if intentional
• Undo/Redo should be on the right, not left, since they are infrequent actions
• How do icons get into a Home/Favorites category?

Elaine

• icon text should match current icon balloon help for mouse modes and most other icons (possible exception for those in show/hide and background groupings)
• categorizations need adjusting
• startup should not assume which "classical" toolbars are shown or not shown
• not all icons work, some give tracebacks (3/5/2019)