зеркало из https://github.com/github/ruby.git
70 строки
1.7 KiB
Ruby
70 строки
1.7 KiB
Ruby
#
|
|
# Editable_TkListbox class
|
|
#
|
|
# When "DoubleClick-1" on a listbox item, the entry box is opend on the
|
|
# item. And when hit "Return" key on the entry box after modifying the
|
|
# text, the entry box is closed and the item is changed. Or when hit
|
|
# "Escape" key, the entry box is closed without modification.
|
|
#
|
|
# by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
|
|
#
|
|
require 'tk'
|
|
|
|
class Editable_TkListbox < TkListbox
|
|
def _ebox_placer(coord_y)
|
|
idx = self.nearest(coord_y)
|
|
x, y, w, h = self.bbox(idx)
|
|
@ebox.place(:x => 0, :relwidth => 1.0,
|
|
:y => y - self.selectborderwidth,
|
|
:height => h + 2 * self.selectborderwidth)
|
|
@ebox.pos = idx
|
|
@ebox.value = self.listvariable.list[idx]
|
|
@ebox.focus
|
|
end
|
|
private :_ebox_placer
|
|
|
|
|
|
def create_self(keys)
|
|
super(keys)
|
|
|
|
unless self.listvariable
|
|
self.listvariable = TkVariable.new(self.get(0, :end))
|
|
end
|
|
|
|
@ebox = TkEntry.new(self){
|
|
@pos = -1
|
|
def self.pos; @pos; end
|
|
def self.pos=(idx); @pos = idx; end
|
|
}
|
|
|
|
@ebox.bind('Return'){
|
|
list = self.listvariable.list
|
|
list[@ebox.pos] = @ebox.value
|
|
self.listvariable.value = list
|
|
@ebox.place_forget
|
|
@ebox.pos = -1
|
|
}
|
|
|
|
@ebox.bind('Escape'){
|
|
@ebox.place_forget
|
|
@ebox.pos = -1
|
|
}
|
|
|
|
self.bind('Double-1', '%y'){|y| _ebox_placer(y) }
|
|
end
|
|
end
|
|
|
|
if $0 == __FILE__
|
|
scr = TkScrollbar.new.pack(:side=>:right, :fill=>:y)
|
|
|
|
lbox1 = Editable_TkListbox.new.pack(:side=>:left)
|
|
lbox2 = Editable_TkListbox.new.pack(:side=>:left)
|
|
|
|
scr.assign(lbox1, lbox2)
|
|
|
|
lbox1.insert(:end, *%w(a b c d e f g h i j k l m n))
|
|
lbox2.insert(:end, 0,1,2,3,4,5,6,7,8,9,0,1,2,3)
|
|
|
|
Tk.mainloop
|
|
end
|