Form Builder, Control Settings: make it easier work on off-viewport controls

[avernet]

2016.1 added the ability to navigate to other controls using the Next/Previous buttons in the Control Settings dialog, without having to close the dialog and reopen it again (#2587). Using next/previous, a form author can reach an off-viewport (not currently visible) control. When this happens, since she can't see the control, it can be harder for her to edit the settings for this control. This calls for finding a solution to this problem, for instance by:

• Allowing form authors to scroll the form "in the background", for instance by:
  • Making the dialog not modal.
  • Making scrolling with pointer on the background and a scroll gesture (or use of the mouse wheel) work, this even with a modal dialog.
• Automatically scrolling the form in the background so the control that currently has the focus is on the viewport.

+1 from community

[ebruchez]

At first glance "Automatically scrolling the form in the background so the control that currently has the focus is on the viewport." would be better.

[acspike]

Hit this today. I agree with @ebruchez regarding automatically scrolling the background. Also might be nice to include (at least) part of the control label on the control settings dialog because the active control is often entirely behind the dialog.

[ebruchez]

I think that the dialog should allow editing label and hint in all cases. This would be very convenient.

[avernet]

Another idea, also suggested by @acspike, is to enable the Control Settings dialog to be docked.

[ebruchez]

Noting that "Automatically scrolling the form in the background so the control that currently has the focus is on the viewport" is something which has been implemented in the meantime.