#
# tkmultilistbox.rb : multiple listbox widget
# by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
#
require 'tk'
class TkMultiListbox < TkListbox
include TkComposite
# lbox_height : height of listboxes (pixel)
# title_info : array [ [<title_string>,<init_width>], ... ]
# keys : hash {<option>=><value>, ... }
def initialize_composite(lbox_height, title_info, keys={})
# argument check
if (! title_info.kind_of? Array) or (title_info.size < 2)
raise
end
# decide total width
@width_total = 0
title_info.each{|title, width| @width_total += width.to_f}
# virtical scrollbar
@v_scroll = TkScrollbar.new(@frame, 'orient'=>'vertical')
# init arrays
@base_list = []
@rel_list = []
@title_list = []
@lbox_list = []
@hscr_list = []
# rel-table of label=>index
@name_index = {}
# create base flames
@f_title = TkFrame.new(@frame, 'width'=>@width_total)
@f_lbox = TkFrame.new(@frame,
'width'=>@width_total, 'height'=>lbox_height)
@f_hscr = TkFrame.new(@frame, 'width'=>@width_total,
'height'=>@v_scroll.cget('width') +
2 * @v_scroll.cget('borderwidth'))
# dummy label to keep the hight of title space
TkLabel.new(@f_title, 'text'=>' ').pack
# create each listbox
sum = 0.0
@rel_list << sum/@width_total
title_info.each_with_index{|(label, width), idx|
# set relation between label and index
if @name_index.include?(label)
@name_index[label] << idx
else
@name_index[label] = [idx]
end
# calculate relative positioning
sum += width
@rel_list << sum/@width_total
# title field
f = TkFrame.new(@f_title, 'width'=>width)
base = [f]
@title_list << TkLabel.new(f, 'text'=>label).pack('fill'=>'x')
f.place('relx'=>@rel_list[idx], 'y'=>0, 'anchor'=>'nw', 'width'=>-6,
'relwidth'=>@rel_list[idx+1] - @rel_list[idx])
# listbox field
f = TkFrame.new(@f_lbox, 'width'=>width)
base << f
@lbox_list << TkListbox.new(f).pack('fill'=>'both', 'expand'=>true)
f.place('relx'=>@rel_list[idx], 'y'=>0, 'anchor'=>'nw', 'width'=>-4,
'relwidth'=>@rel_list[idx+1] - @rel_list[idx], 'relheight'=>1.0)
# scrollbar field
f = TkFrame.new(@f_hscr, 'width'=>width)
base << f
@hscr_list << TkScrollbar.new(f, 'orient'=>'horizontal') .
pack('fill'=>'x', 'anchor'=>'w')
f.place('relx'=>@rel_list[idx], 'y'=>0, 'anchor'=>'nw', 'width'=>-4,
'relwidth'=>@rel_list[idx+1] - @rel_list[idx])
@lbox_list[idx].xscrollcommand proc{|first, last|
@hscr_list[idx].set first, last
}
@hscr_list[idx].command proc{|*args| @lbox_list[idx].xview *args}
# add new base
@base_list << base
}
# create tab
@tab_list = [nil]
(1..(@rel_list.size - 2)).each{|idx|
tab = TkFrame.new(@f_title, 'cursor'=>'sb_h_double_arrow',
'width'=>6, 'borderwidth'=>2, 'relief'=>'raised')
@tab_list << tab
tab.place('relx'=>@rel_list[idx], 'anchor'=>'ne', 'relheight'=>0.95)
tab.bind('Button-1',
proc{|x| @x = x; @frame_width = TkWinfo.width(@f_title).to_f},
'%X')
tab.bind('B1-Motion', proc{|x, idx| resize(x, idx.to_i)}, "%X #{idx}")
}
# set control procedure for virtical scroll
@lbox_list.each{|lbox|
lbox.yscrollcommand proc{|first, last|
@v_scroll.set first, last
}
}
@v_scroll.command proc{|*args| @lbox_list.each{|lbox| lbox.yview *args} }
# binding for listboxes
@mode = {}
@mode['browse'] = browse_mode_bindtag
@mode['single'] = single_mode_bindtag
@mode['extended'] = extended_mode_bindtag
@mode['multiple'] = multiple_mode_bindtag
@current_mode = 'browse'
@lbox_list.each{|l|
l.bind('Shift-Key-Left',
proc{|w| focus_shift(w, -1); Tk.callback_break}, '%W')
l.bind('Shift-Key-Right',
proc{|w| focus_shift(w, 1); Tk.callback_break}, '%W')
l.bind('Button-2', proc{|x, y|
@lbox_mark_x = x
@lbox_list.each{|lbox| lbox.scan_mark(x, y)}
}, '%x %y')
l.bind('B2-Motion', proc{|x, y|
@lbox_list.each{|lbox| lbox.scan_dragto(@lbox_mark_x, y)}
l.scan_dragto(x, y)
}, '%x %y')
l.bindtags(l.bindtags.unshift(@mode[@current_mode]))
}
# alignment
TkGrid.rowconfigure(@frame, 0, 'weight'=>0)
TkGrid.rowconfigure(@frame, 1, 'weight'=>1)
TkGrid.rowconfigure(@frame, 2, 'weight'=>0)
TkGrid.columnconfigure(@frame, 0, 'weight'=>1)
TkGrid.columnconfigure(@frame, 1, 'weight'=>0)
@v_scroll.grid('row'=>1, 'column'=>1, 'sticky'=>'ns')
@f_title.grid('row'=>0, 'column'=>0, 'sticky'=>'news')
@f_lbox.grid('row'=>1, 'column'=>0, 'sticky'=>'news')
@f_hscr.grid('row'=>2, 'column'=>0, 'sticky'=>'ew')
# binding for 'Configure' event
@frame.bind('Configure', proc{reconstruct})
# set default receiver of method calls
@path = @lbox_list[0].path
# configure options
keys = {} unless keys
keys = _symbolkey2str(keys)
# 'mode' option of listboxes
sel_mode = keys.delete('mode')
mode(sel_mode) if sel_mode
# 'scrollbarwidth' option == 'width' option of scrollbars
width = keys.delete('scrollbarwidth')
scrollbarwidth(width) if width
# options for listbox titles
title_font = keys.delete('titlefont')
title_fg = keys.delete('titleforeground')
title_bg = keys.delete('titlebackground')
if title_font or title_fg or title_bg
titleconfig(title_font, title_fg, title_bg)
end
# set receivers for configure methods
delegate('DEFAULT', *@lbox_list)
delegate('activebackground', @v_scroll, *@hscr_list)
delegate('troughcolor', @v_scroll, *@hscr_list)
delegate('repeatdelay', @v_scroll, *@hscr_list)
delegate('repeatinterval', @v_scroll, *@hscr_list)
delegate('borderwidth', @frame)
delegate('relief', @frame)
# configure
configure(keys) if keys.size > 0
end
private :initialize_composite
# set 'mode' option of listboxes
def mode(sel_mode)
@lbox_list.each{|l|
tags = l.bindtags
tags = tags - [ @mode[@current_mode] ]
l.bindtags(tags.unshift(@mode[sel_mode]))
@current_mode = sel_mode
}
end
# set scrollbar width
def scrollbarwidth(width)
@v_scroll['width'] = width
@hscr_list.each{|hscr| hscr['width'] = width}
@f_hscr['height'] = width + 2 * @v_scroll.cget('borderwidth')
end
# set options of titles
def titleconfig(font, fg, bg)
keys = {}
keys['font'] = font if font
keys['foreground'] = fg if fg
keys['background'] = bg if bg
@title_list.each{|label| label.configure(keys)}
end
# get label widgets of listbox titles
def titlelabels(*indices)
@title_list[*indices]
end
# get listbox widgets
def columns(*indices)
@lbox_list[*indices]
end
def activate(idx)
@lbox_list.each{|lbox| lbox.activate(idx)}
end
def bbox(idx)
@lbox_list.collect{|lbox| lbox.bbox(idx)}
end
def delete(*idx)
@lbox_list.collect{|lbox| lbox.delete(*idx)}
end
def get(*idx)
if idx.size == 1
@lbox_list.collect{|lbox| lbox.get(*idx)}
else
list = @lbox_list.collect{|lbox| lbox.get(*idx)}
result = []
list[0].each_with_index{|line, index|
result << list.collect{|lines| lines[index]}
}
result
end
end
def _line_array_to_hash(line)
result = {}
@name_index.each_pair{|label, indices|
if indices.size == 1
result[label] = line[indices[0]]
else
result[label] = indices.collect{|index| line[index]}
end
}
result
end
private :_line_array_to_hash
def get_by_hash(*idx)
get_result = get(*idx)
if idx.size == 1
_line_array_to_hash(get_result)
else
get_result.collect{|line| _line_array_to_hash(line)}
end
end
def insert(idx, *lines)
lbox_ins = []
(0..@lbox_list.size).each{lbox_ins << []}
lines.each{|line|
if line.kind_of? Hash
array = []
@name_index.each_pair{|label, indices|
if indices.size == 1
array[indices[0]] = line[label]
else
if line[label].kind_of? Array
indices.each_with_index{|index, num|
array[index] = line[label][num]
}
else
array[indices[0]] = line[label]
end
end
}
line = array
end
@name_index.each_pair{|label, indices|
if indices.size == 1
lbox_ins[indices[0]] << line[indices[0]]
else
indices.each{|index| lbox_ins[index] << line[index]}
end
}
}
@lbox_list.each_with_index{|lbox, index|
lbox.insert(idx, *lbox_ins[index]) if lbox_ins[index]
}
end
def selection_anchor(index)
@lbox_list.each{|lbox| lbox.selection_anchor(index)}
end
def selection_clear(first, last=None)
@lbox_list.each{|lbox| lbox.selection_clear(first, last=None)}
end
def selection_set(first, last=None)
@lbox_list.each{|lbox| lbox.selection_set(first, last=None)}
end
###########################################
private
def reconstruct
(0..(@rel_list.size - 2)).each{|idx|
title, lbox, hscr = @base_list[idx]
title.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx])
lbox.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx],
'relheight'=>1.0)
hscr.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx])
tab = @tab_list[idx]
tab.place('relx'=>@rel_list[idx]) if tab
}
end
def resize(x, idx)
# adjustment of relative positioning
delta = (x - @x) / @frame_width
if delta < @rel_list[idx-1] - @rel_list[idx] + 0.02
delta = @rel_list[idx-1] - @rel_list[idx] + 0.02
elsif delta > @rel_list[idx+1] - @rel_list[idx] - 0.02
delta = @rel_list[idx+1] - @rel_list[idx] - 0.02
end
@rel_list[idx] += delta
# adjustment of leftside widget of the tab
title, lbox, hscr = @base_list[idx - 1]
title.place('relwidth'=>@rel_list[idx] - @rel_list[idx-1])
lbox.place('relwidth'=>@rel_list[idx] - @rel_list[idx-1], 'relheight'=>1.0)
hscr.place('relwidth'=>@rel_list[idx] - @rel_list[idx-1])
# adjustment of the tab position
@tab_list[idx].place('relx'=>@rel_list[idx])
# adjustment of rightside widget of the tab
title, lbox, hscr = @base_list[idx]
title.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx],
'relx'=>@rel_list[idx])
lbox.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx],
'relx'=>@rel_list[idx], 'relheight'=>1.0)
hscr.place('relwidth'=>@rel_list[idx+1] - @rel_list[idx],
'relx'=>@rel_list[idx])
# update reference position
@x = x
end
#################################
def browse_mode_bindtag
t = TkBindTag.new
t.bind('Button-1',
proc{|w, y| w.focus; select_line(w, w.nearest(y))}, '%W %y')
t.bind('B1-Motion', proc{|w, y| select_line(w, w.nearest(y))}, '%W %y')
t.bind('Shift-Button-1',
proc{|w, y| active_line(w, w.nearest(y))}, '%W %y')
t.bind('Key-Up', proc{|w| select_shift(w, -1)}, '%W')
t.bind('Key-Down', proc{|w| select_shift(w, 1)}, '%W')
t.bind('Control-Home', proc{|w| select_line(w, 0)}, '%W')
t.bind('Control-End', proc{|w| select_line(w, 'end')}, '%W')
t.bind('space', proc{|w| select_line(w, w.index('active').to_i)}, '%W')
t.bind('Select', proc{|w| select_line(w, w.index('active').to_i)}, '%W')
t.bind('Control-slash',
proc{|w| select_line(w, w.index('active').to_i)}, '%W')
t
end
########################
def single_mode_bindtag
t = TkBindTag.new
t.bind('Button-1',
proc{|w, y| w.focus; select_only(w, w.nearest(y))}, '%W %y')
t.bind('ButtonRelease-1',
proc{|w, y| active_line(w, w.nearest(y))}, '%W %y')
t.bind('Shift-Button-1',
proc{|w, y| active_line(w, w.nearest(y))}, '%W %y')
t.bind('Key-Up', proc{|w| select_shift(w, -1)}, '%W')
t.bind('Key-Down', proc{|w| select_shift(w, 1)}, '%W')
t.bind('Control-Home', proc{|w| select_line(w, 0)}, '%W')
t.bind('Control-End', proc{|w| select_line(w, 'end')}, '%W')
t.bind('space', proc{|w| select_line(w, w.index('active').to_i)}, '%W')
t.bind('Select', proc{|w| select_line(w, w.index('active').to_i)}, '%W')
t.bind('Control-slash',
proc{|w| select_line(w, w.index('active').to_i)}, '%W')
t.bind('Control-backslash',
proc{@lbox_list.each{|l| l.selection_clear(0, 'end')}})
t
end
########################
def extended_mode_bindtag
t = TkBindTag.new
t.bind('Button-1',
proc{|w, y| w.focus; select_only(w, w.nearest(y))}, '%W %y')
t.bind('B1-Motion', proc{|w, y| select_range(w, w.nearest(y))}, '%W %y')
t.bind('ButtonRelease-1',
proc{|w, y| active_line(w, w.nearest(y))}, '%W %y')
t.bind('Shift-Button-1',
proc{|w, y| select_range(w, w.nearest(y))}, '%W %y')
t.bind('Shift-B1-Motion',
proc{|w, y| select_range(w, w.nearest(y))}, '%W %y')
t.bind('Control-Button-1',
proc{|w, y| select_toggle(w, w.nearest(y))}, '%W %y')
t.bind('Control-B1-Motion',
proc{|w, y| select_drag(w, w.nearest(y))}, '%W %y')
t.bind('Key-Up', proc{|w| active_shift(w, -1)}, '%W')
t.bind('Key-Down', proc{|w| active_shift(w, 1)}, '%W')
t.bind('Shift-Up', proc{|w| select_expand(w, -1)}, '%W')
t.bind('Shift-Down', proc{|w| select_expand(w, 1)}, '%W')
t.bind('Control-Home', proc{|w| select_line2(w, 0)}, '%W')
t.bind('Control-End', proc{|w| select_line2(w, 'end')}, '%W')
t.bind('Control-Shift-Home', proc{|w| select_range(w, 0)}, '%W')
t.bind('Control-Shift-End', proc{|w| select_range(w, 'end')}, '%W')
t.bind('space', proc{|w| select_active(w)}, '%W')
t.bind('Select', proc{|w| select_active(w)}, '%W')
t.bind('Control-slash', proc{|w| select_all}, '%W')
t.bind('Control-backslash', proc{|w| clear_all}, '%W')
t
end
########################
def multiple_mode_bindtag
t = TkBindTag.new
t.bind('Button-1',
proc{|w, y| w.focus; select_line3(w, w.nearest(y))}, '%W %y')
t.bind('ButtonRelease-1',
proc{|w, y| active_line(w, w.nearest(y))}, '%W %y')
t.bind('Key-Up', proc{|w| active_shift(w, -1)}, '%W')
t.bind('Key-Down', proc{|w| active_shift(w, 1)}, '%W')
t.bind('Control-Home', proc{|w| select_line2(w, 0)}, '%W')
t.bind('Control-End', proc{|w| select_line2(w, 'end')}, '%W')
t.bind('Control-Shift-Home', proc{|w| active_line(w, 0)}, '%W')
t.bind('Control-Shift-End', proc{|w| active_line(w, 'end')}, '%W')
t.bind('space', proc{|w| select_active(w)}, '%W')
t.bind('Select', proc{|w| select_active(w)}, '%W')
t.bind('Control-slash', proc{|w| select_all}, '%W')
t.bind('Control-backslash', proc{|w| clear_all}, '%W')
t
end
########################
def active_line(w, idx)
@lbox_list.each{|l| l.activate(idx)}
end
def select_only(w, idx)
@lbox_list.each{|l|
l.selection_clear(0, 'end')
l.selection_anchor(idx)
l.selection_set('anchor')
}
end
def select_range(w, idx)
@lbox_list.each{|l|
l.selection_clear(0, 'end')
l.selection_set('anchor', idx)
}
end
def select_toggle(w, idx)
st = w.selection_includes(idx)
@lbox_list.each{|l|
l.selection_anchor(idx)
if st == 1
l.selection_clear(idx)
else
l.selection_set(idx)
end
}
end
def select_drag(w, idx)
st = w.selection_includes('anchor')
@lbox_list.each{|l|
if st == 1
l.selection_set('anchor', idx)
else
l.selection_clear('anchor', idx)
end
}
end
def select_line(w, idx)
@lbox_list.each{|l|
l.selection_clear(0, 'end')
l.activate(idx)
l.selection_anchor(idx)
l.selection_set('anchor')
}
w.selection_set('anchor')
end
def select_line2(w, idx)
@lbox_list.each{|l|
l.activate(idx)
l.selection_anchor(idx)
l.selection_set('anchor')
}
end
def select_line3(w, idx)
@lbox_list.each{|l|
l.selection_set(idx)
}
end
def select_active(w)
idx = l.activate(idx)
@lbox_list.each{|l|
l.selection_set(idx)
}
end
def select_expand(w, dir)
idx = w.index('active').to_i + dir
if idx < 0
idx = 0
elsif idx >= w.size
idx = w.size - 1
end
@lbox_list.each{|l|
l.activate(idx)
l.selection_set(idx)
}
end
def active_shift(w, dir)
idx = w.index('active').to_i + dir
if idx < 0
idx = 0
elsif idx >= w.size
idx = w.size - 1
end
@lbox_list.each{|l|
l.activate(idx)
l.selection_anchor(idx)
}
end
def select_shift(w, dir)
idx = w.index('anchor').to_i + dir
if idx < 0
idx = 0
elsif idx >= w.size
idx = w.size - 1
end
@lbox_list.each{|l|
l.selection_clear(0, 'end')
l.activate(idx)
l.selection_anchor(idx)
l.selection_set('anchor')
}
end
def select_all
@lbox_list.each{|l|
l.selection_set(0, 'end')
}
end
def clear_all
@lbox_list.each{|l|
l.selection_clear(0, 'end')
}
end
def focus_shift(w, dir)
idx = @lbox_list.index(w) + dir
return if idx < 0
return if idx >= @lbox_list.size
@lbox_list[idx].focus
end
########################
end
################################################
# test
################################################
if __FILE__ == $0
f = TkFrame.new(nil, 'width'=>300,
'height'=>200).pack('fill'=>'both', 'expand'=>'true')
#f = TkFrame.new.pack('fill'=>'both', 'expand'=>'true')
l = TkMultiListbox.new(f, 150,
[ ['L1', 100],
['L2', 200],
['L3', 50] ],
'titlefont'=>'courier',
'titleforeground'=>'yellow',
'titlebackground'=>'navy'
).pack('fill'=>'both', 'expand'=>true)
l.insert('end', [1,2,3])
l.insert('end', [4,5,6])
l.insert('end', [4,5,6], [4,5,6])
l.insert('end', ['aaaaaaaaaaaaaaa','bbbbbbbbbbbbbb','ccccccccccccccccc'])
l.insert('end', [1,2,3])
l.insert('end', [4,5,6], [4,5,6])
l.insert('end', ['aaaaaaaaaaaaaaa','bbbbbbbbbbbbbb','ccccccccccccccccc'])
l.insert('end', [1,2,3])
l.insert('end', [4,5,6], [4,5,6])
l.insert('end', ['aaaaaaaaaaaaaaa','bbbbbbbbbbbbbb','ccccccccccccccccc'])
l.insert('end', [1,2,3])
l.insert('end', [4,5,6], [4,5,6])
p l.columns(1)
p l.columns(1..3)
p l.columns(1,2)
Tk.mainloop
end