RouteUI::set_route() already does the right thing. Also remove RouteUI::mute_changed() since its
only role was to handle the mute change signal from a route, which boost::bind() makes unnecessary
since we can connect update_mute_display() directly.
left-click should show the simple input picker menu.
right-click shows the routing grid.
also reordered the menu to give lower precedence to {add/remove}-port
Diameter is calculated depending on font-scaling.
Besides, all explicit calls simply set the default
value, anyway. If some API is needed in the future,
it should set the diameter in [em].
This fixes issues where button text was set during static
initialization where the widget style was not yet available,
and a lot of related issues where the text was set
before style.
Always give ArdourButton a chance to handle Press or Release events if you override them.
This allows ArdourButtons to do the "Pressed" animation
And it now correctly eats the event so button clicks don't select the channelstrip.
ArdourButtons now have a "pushed" animation.
The gradient is now implemented in the button, rather than providing 2 colors in the theme, which was burdensome.
Lots of code cleanup in ArdourButton. Removed several unnecessary flags.
Refactor more stuff into route_ui.
The goal is to preserve a consistent layout and sizing of the buttons.
Button height should not resize based on text, because font styles differ and this leads to inconsistent button heights
Button width should not be based on text or font size; instead, font size just determines how many chars will be visible in the button
There are some elements of the editor page which _do_ scale based on the text width, and thats probably sensible because the text is predefined, and needs to fit
