Panning's made a welcome return... But it's "border-push" type panning. That means to scroll new sections of the display into view you "push" against the border. Back in the day, some amiga stuff instead used "proportional" panning to move the viewport about the screen. Why would you want this? "Pushing" against a border means you need to push beyond where you want to click on to bring whatever it is fully on-screen, then move back. With the proportional way, every viewport pointer position corresponds to a particular point on the panning area. It allows rapid scrolling about large panning areas, at cost of some precision.
You can sortof-nearly get a vaguely similar effect by using something like xrandr --output DVI-I_1/analog --mode 800x600 --panning 1600x1200+0+0/1600x1200+0+0/400/300/400/300 - but it's noticeably nonuniform. Anyway, it might be nice if one could say something like xrandr --panning blah --panning-mode proportional vs. xrandr --panning blah --panning-mode borderpush Just putting the idea out there, beyond "see the X.org source code" I don't presently know where to begin implementing it beyond rough description... (see http://harpegolden.net/misc/proppanning.pdf for illustration): w_pa # width panning area w_vp # width viewport x_vp # x coord of topleft of viewport relative to topleft of panning area. x_m # x coord of mouse pointer relative to _viewport_ x_vp = (x_m * (w_pa - w_vp)) / w_vp similar for ys + heights _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
