Tk bind help

ruby-talk
1

rtk’rs-

i have a tk app that has a TkText setup with a TkScrollbar:

@text = TkText.new @widget, :background=>BACKGROUND_WHITE
@text.insert 'end', text
@text.configure :state=>'disabled'
@textscroll = TkScrollbar.new @text

@textscroll.configure :command => proc {|*args| @text.yview *args }
@text.yscrollcommand proc{|first,last| @textscroll.set first,last}

and i want to configure ‘page down’, ‘page up’, ‘down arrow’, 'up arrow, etc.
events to do the sensible thing

this seems to do nothing…

@text.bind ‘Down’, proc{puts ‘Down’}
@text.bind ‘downarrow’, proc{puts ‘downarrow’}

obivously i’ll need to update both @text and @textscroll on these events
(up/down a page or line)

any ideas on how to accomplish this most easily?

-a

···

–

EMAIL :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
PHONE :: 303.497.6469
ADDRESS :: E/GC2 325 Broadway, Boulder, CO 80305-3328
URL :: Solar-Terrestrial Physics Data | NCEI
TRY :: for l in ruby perl;do $l -e “print "\x3a\x2d\x29\x0a"”;done
===============================================================================

2

and i want to configure ‘page down’, ‘page up’, ‘down arrow’, 'up arrow, etc.
events to do the sensible thing

this seems to do nothing…

@text.bind ‘Down’, proc{puts ‘Down’}
@text.bind ‘downarrow’, proc{puts ‘downarrow’}

The following writes out “Down” when you press the down arrow:

txt=TkText.new()
txt.bind(“Down”, proc {puts “Down”})

The PgDn/PgUp keys normally are referred as ‘Next’ and ‘Prior’ key
symbols.

For real scrolling, you just have to use the ‘see’ method of TkText
(check out man 3tk text).

Ferenc

3

thanks. that worked.

-a

···

On Thu, 1 Apr 2004, Ferenc Engard wrote:

and i want to configure ‘page down’, ‘page up’, ‘down arrow’, 'up arrow, etc.
events to do the sensible thing

this seems to do nothing…

@text.bind ‘Down’, proc{puts ‘Down’}
@text.bind ‘downarrow’, proc{puts ‘downarrow’}

The following writes out “Down” when you press the down arrow:

txt=TkText.new()
txt.bind(“Down”, proc {puts “Down”})

The PgDn/PgUp keys normally are referred as ‘Next’ and ‘Prior’ key
symbols.

For real scrolling, you just have to use the ‘see’ method of TkText
(check out man 3tk text).

Ferenc

–

EMAIL :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
PHONE :: 303.497.6469
ADDRESS :: E/GC2 325 Broadway, Boulder, CO 80305-3328
URL :: Solar-Terrestrial Physics Data | NCEI
TRY :: for l in ruby perl;do $l -e “print "\x3a\x2d\x29\x0a"”;done
===============================================================================