Whenever i want to access a file whose tab is out of the view i press one of the two arrows. Suppose i have twenty files open and i am in the rightmost document (#20). There are 6 tabs visible (#15 through #20) above the document editor. I want to get to the leftmost document (#1). I press left arrow triangle. But, instead of scrolling the tabs only, geany jumps to the document on the left (#19) - which is an action identical to Ctrl + PageUp.
Please scroll tabs only and keep current document open antil one explicitly selects another document (see how firefox handles this action)
This way one can keep looking at the relevant text in the document #20 while looking for the right file name.
Also one can abandon the search and return to editng current document
Geany 0.21 on Ubuntu 12.04
What happens then if the active tab is scrolled out of view? Tabs are a UI affordance for the editor pane and there should never be any circumstance when there is no 'foreground' tab visible.
You can use the documents sidebar to get a scrolling list of the files you have open.
Tab switch with mouse wheel is something implemented by the GTK toolkit (the UI toolkit we use), we don't do it ourselves, and probably can't do much about it.
Moreover, it's a controversial subject, GTK removed the feature in the path to version 3.0 (see https://bugzilla.gnome.org/show_bug.cgi?id=630226\), and it made a lot of people (including me) mad. See recent comments on https://bugzilla.gnome.org/show_bug.cgi?id=145244
We won't do anything about this.