Improve behaviour of making nodes visible / scrolling the extensive game display #569
Description
This feature request is for...
Gambit GUI
Requested enahancement or feature
We have a feature in the graphical interface (hitting the space bar) which scrolls the window to make the currently-selected node visible. This usually does manage to make the selected node visible - but it's not necessarily a slick or modern result (for example the selected node isn't centred at all even when it might make sense to be able to centre it).
Relatedly, when a game is first displayed, the window is not scrolled to display the root node of the game and/or the zoom level of the game is not set appropriately. So for even a rather moderately-sized game, the initial display window is blank because the tree is actually down and to the right of the part of the canvas that is being displayed.
Given the interconnections between these two - basically they both boil down to trying to make working with medium-sized games a bit more smooth - it makes sense to think of these as part of the same project to be solved.