ia64/xen-unstable

changeset 16668:50bd5d2c15cf

Fix pygrub handling of many kernels

If there are a large number of kernel images configured in grub.conf
there will be too many to fit in the limited size pygrub display. This
patch fixes this so that the list of kernels scrolls as needed.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Dec 27 12:56:32 2007 +0000 (2007-12-27)
parents 9bf8b152df9f
children 7fbc521b07a9
files tools/pygrub/src/pygrub
line diff
     1.1 --- a/tools/pygrub/src/pygrub	Thu Dec 27 12:53:57 2007 +0000
     1.2 +++ b/tools/pygrub/src/pygrub	Thu Dec 27 12:56:32 2007 +0000
     1.3 @@ -27,7 +27,7 @@ import fsimage
     1.4  import grub.GrubConf
     1.5  import grub.LiloConf
     1.6  
     1.7 -PYGRUB_VER = 0.5
     1.8 +PYGRUB_VER = 0.6
     1.9  
    1.10  def enable_cursor(ison):
    1.11      if ison:
    1.12 @@ -228,15 +228,22 @@ class Grub:
    1.13      def fill_entry_list(self):
    1.14          self.entry_win.clear()
    1.15          self.entry_win.box()
    1.16 -        for y in range(0, len(self.cf.images)):
    1.17 +
    1.18 +        maxy = self.entry_win.getmaxyx()[0]-3 # maxy - 2 for the frame + index
    1.19 +        if self.selected_image > self.start_image + maxy:
    1.20 +            self.start_image = self.selected_image
    1.21 +        if self.selected_image < self.start_image:
    1.22 +            self.start_image = self.selected_image
    1.23 +        
    1.24 +        for y in range(self.start_image, len(self.cf.images)):
    1.25              i = self.cf.images[y]
    1.26 -            if (0, y) > self.entry_win.getmaxyx():
    1.27 +            if y > self.start_image + maxy:
    1.28                  break
    1.29              if y == self.selected_image:
    1.30                  attr = curses.A_REVERSE
    1.31              else:
    1.32                  attr = 0
    1.33 -            self.entry_win.addstr(y + 1, 2, i.title.ljust(70), attr)
    1.34 +            self.entry_win.addstr(y + 1 - self.start_image, 2, i.title.ljust(70), attr)
    1.35          self.entry_win.refresh()
    1.36  
    1.37      def edit_entry(self, origimg):
    1.38 @@ -416,6 +423,7 @@ class Grub:
    1.39  
    1.40          # now loop until we hit the timeout or get a go from the user
    1.41          mytime = 0
    1.42 +        self.start_image = 0
    1.43          while (timeout == -1 or mytime < int(timeout)):
    1.44              draw()
    1.45              if timeout != -1 and mytime != -1: