usability: callstack UI should not scroll

[Spongman]

when debugging code with long callstack lines (eg c++ templates where line length can easily exceed 10,000 characters), much of the callstack UI is invisible without scrolling to the right making it next to useless:

NOTE:

• the horizontal scrollbar is tiny.
• the filenames & line numbers (eg 'epoll_reator.ipp' 806:1) are not visible unless the window is scrolled all the way to the right
• the module/function names are not visible when the window is scrolled
• the 'Load More Stack Frames' UI is inaccessible, requiring precise scrolling to the middle of the window.

REQUEST:

• lock the filename/line-number UI to the right-side of the VIEW (not the content)
• have the content of the window (the actual callstack lines) scroll under the above filename/line-number UI
• lock the "Load More Stack Frames" UI to the center of the VIEW (not the content)

[roblourens]

Agreed that it's not a good experience, but you would only see this with horizontal scrolling enabled, which isn't the default. I think that lots of our lists are not really optimized for horizontal scrolling.

[Spongman]

well, with "workbench.list.horizontalScrolling": false, it's even less usable:

• the right-side UI is only visible when the line is short
• if the line is long, it's impossible to see the filename/line number (you can't even scroll to see it)
• if the line is long, it's impossible to see the rest of the line

so, basically that setting switches between bad and worse. I have it set to true so I can at least scroll to see the whole callstack lines when I need to.

[Spongman]

IMO, the way it should works is this:

• the view should be horizonally scrollable
• the right-side UI should be visible for every line, should be right-justified to the VIEW (not affected by horizontal scroll), and should overlap the list content (that is scrolled).
• the "Load More Stack Frames" UI should be centered in the VIEW (not affected by horizontal scroll)

it looks like this should be possible: when scrolling is disabled, the right-side UI is already locked to the right of the VIEW, and the "Load More Stack Frames" is centered. it just needs to be like this when scrolling is enabled, too, plus the right-side UI needs to float above the line and not be pushed off the right edge of the view.

[roblourens]

I see. Those frame line names though 😳