Proposal: TabView customizable scroll amount for decrease/increase buttons

[jarnovanwijk]

Proposal: TabView customizable scroll amount for decrease/increase buttons

Summary

When using large tab headers, the default scroll amount that is applied is rather small (50px). This will require a user to click the scroll increase/decrease buttons multiple times (or hold them), in order to scroll a single tab item. This could be prevented with a customizable scroll amount.

Rationale

• Implementing this feature would increase the user-friendliness of the control
• There is already a TODO marked in the TabView.cpp

// TODO: what is the right number and should this be customizable?
static constexpr double c_scrollAmount = 50.0;