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(no author) 2004-06-12 15:25:50 +00:00
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243
ext/tk/lib/tk/menuspec.rb Normal file
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#
# tk/menuspec.rb
# Hidethoshi NAGAI (nagai@ai.kyutech.ac.jp)
#
# based on tkmenubar.rb :
# Copyright (C) 1998 maeda shugo. All rights reserved.
# This file can be distributed under the terms of the Ruby.
#
# The format of the menu_spec is:
# [ menu_info, menu_info, ... ]
#
# And the format of the menu_info is:
# [
# [text, underline, configs], # menu button/entry (*1)
# [label, command, underline, accelerator, configs], # command entry
# [label, TkVar_obj, underline, accelerator, configs], # checkbutton entry
# [label, [TkVar_obj, value],
# underline, accelerator, configs], # radiobutton entry
# [label, [[...menu_info...], [...menu_info...], ...],
# underline, accelerator, configs], # cascade entry
# '---', # separator
# ...
# ]
#
# underline, accelerator, and configs are optional pearameters.
# Hashes are OK instead of Arrays. Then the entry type ('command',
# 'checkbutton', 'radiobutton' or 'cascade') is given by 'type' key
# (e.g. :type=>'cascade'). When type is 'cascade', an array of menu_info
# is acceptable for 'menu' key (then, create sub-menu).
#
# NOTE: (*1)
# If you want to make special menus (*.help for UNIX, *.system for Win,
# and *.apple for Mac), append 'menu_name'=>name (name is 'help' for UNIX,
# 'system' for Win, and 'apple' for Mac) option to the configs hash of
# menu button/entry information.
module TkMenuSpec
def _create_menu(parent, menu_info, menu_name = nil,
tearoff = false, default_opts = nil)
if tearoff.kind_of?(Hash)
default_opts = tearoff
tearoff = false
end
if menu_name.kind_of?(Hash)
default_opts = menu_name
menu_name = nil
tearoff = false
end
if default_opts.kind_of?(Hash)
orig_opts = _symbolkey2str(default_opts)
else
orig_opts = {}
end
tearoff = orig_opts.delete('tearoff') if orig_opts.key?('tearoff')
if menu_name
menu = TkMenu.new(parent, :widgetname=>menu_name, :tearoff=>tearoff)
else
menu = TkMenu.new(parent, :tearoff=>tearoff)
end
for item_info in menu_info
if item_info.kind_of?(Hash)
options = orig_opts.dup
options.update(_symbolkey2str(item_info))
item_type = (options.delete('type') || 'command').to_s
menu_name = options.delete('menu_name')
menu_opts = orig_opts.dup
menu_opts.update(_symbolkey2str(options.delete('menu_config') || {}))
if item_type == 'cascade' && options['menu'].kind_of?(Array)
# create cascade menu
submenu = _create_menu(menu, options['menu'], menu_name,
tearoff, menu_opts)
options['menu'] = submenu
end
menu.add(item_type, options)
elsif item_info.kind_of?(Array)
options = orig_opts.dup
options['label'] = item_info[0] if item_info[0]
case item_info[1]
when TkVariable
# checkbutton
item_type = 'checkbutton'
options['variable'] = item_info[1]
options['onvalue'] = true
options['offvalue'] = false
when Array
# radiobutton or cascade
if item_info[1][0].kind_of?(TkVariable)
# radiobutton
item_type = 'radiobutton'
options['variable'] = item_info[1][0]
options['value'] = item_info[1][1] if item_info[1][1]
else
# cascade
item_type = 'cascade'
menu_opts = orig_opts.dup
if item_info[4] && item_info[4].kind_of?(Hash)
opts = _symbolkey2str(item_info[4])
menu_name = opts.delete('menu_name')
menu_config = opts.delete('menu_config') || {}
menu_opts.update(_symbolkey2str(menu_config))
end
submenu = _create_menu(menu, item_info[1], menu_name,
tearoff, menu_opts)
options['menu'] = submenu
end
else
# command
item_type = 'command'
options['command'] = item_info[1] if item_info[1]
end
options['underline'] = item_info[2] if item_info[2]
options['accelerator'] = item_info[3] if item_info[3]
if item_info[4] && item_info[4].kind_of?(Hash)
opts = _symbolkey2str(item_info[4])
if item_type == 'cascade'
opts.delete('menu_name')
opts.delete('menu_config')
end
options.update(opts)
end
menu.add(item_type, options)
elsif /^-+$/ =~ item_info
menu.add('separator')
else
menu.add('command', 'label' => item_info)
end
end
menu
end
private :_create_menu
def _create_menubutton(parent, menu_info, tearoff=false, default_opts = nil)
btn_info = menu_info[0]
if tearoff.kind_of?(Hash)
default_opts = tearoff
tearoff = false
end
if default_opts.kind_of?(Hash)
keys = _symbolkey2str(default_opts)
else
keys = {}
end
tearoff = keys.delete('tearoff') if keys.key?('tearoff')
if parent.kind_of?(TkRoot) || parent.kind_of?(TkToplevel)
# menubar by menu entries
unless (mbar = parent.menu).kind_of?(TkMenu)
mbar = TkMenu.new(parent, :tearoff=>false)
parent.menu(mbar)
end
menu_name = nil
if btn_info.kind_of?(Hash)
keys.update(_symbolkey2str(btn_info))
menu_name = keys.delete('menu_name')
keys['label'] = keys.delete('text') if keys.key?('text')
elsif btn_info.kind_of?(Array)
keys['label'] = btn_info[0] if btn_info[0]
keys['underline'] = btn_info[1] if btn_info[1]
if btn_info[2]&&btn_info[2].kind_of?(Hash)
keys.update(_symbolkey2str(btn_info[2]))
menu_name = keys.delete('menu_name')
end
else
keys = {:label=>btn_info}
end
menu = _create_menu(mbar, menu_info[1..-1], menu_name,
tearoff, default_opts)
menu.tearoff(tearoff)
keys['menu'] = menu
mbar.add('cascade', keys)
[mbar, menu]
else
# menubar by menubuttons
mbtn = TkMenubutton.new(parent)
menu_name = nil
if btn_info.kind_of?(Hash)
keys.update(_symbolkey2str(btn_info))
menu_name = keys.delete('menu_name')
keys['text'] = keys.delete('label') if keys.key?('label')
mbtn.configure(keys)
elsif btn_info.kind_of?(Array)
mbtn.configure('text', btn_info[0]) if btn_info[0]
mbtn.configure('underline', btn_info[1]) if btn_info[1]
# mbtn.configure('accelerator', btn_info[2]) if btn_info[2]
if btn_info[2]&&btn_info[2].kind_of?(Hash)
keys.update(_symbolkey2str(btn_info[2]))
menu_name = keys.delete('menu_name')
mbtn.configure(keys)
end
else
mbtn.configure('text', btn_info)
end
mbtn.pack('side' => 'left')
menu = _create_menu(mbtn, menu_info[1..-1], menu_name,
tearoff, default_opts)
mbtn.menu(menu)
[mbtn, menu]
end
end
private :_create_menubutton
def _get_cascade_menus(menu)
menus = []
(0..(menu.index('last'))).each{|idx|
if menu.menutype(idx) == 'cascade'
submenu = menu.entrycget(idx, 'menu')
menus << [submenu, _get_cascade_menus(submenu)]
end
}
menus
end
private :_get_cascade_menus
end

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#
# menubar sample 1 : use frame and menubuttons
#
require 'tk'
radio_var = TkVariable.new('y')
menu_spec = [
[['File', 0],
{:label=>'Open', :command=>proc{puts('Open clicked')}, :underline=>0},
'---',
['Check_A', TkVariable.new(true), 6],
{:type=>'checkbutton', :label=>'Check_B',
:variable=>TkVariable.new, :underline=>6},
'---',
['Radio_X', [radio_var, 'x'], 6, '', {:foreground=>'black'}],
['Radio_Y', [radio_var, 'y'], 6],
['Radio_Z', [radio_var, 'z'], 6],
'---',
['cascade', [
['sss', proc{p 'sss'}, 0],
['ttt', proc{p 'ttt'}, 0],
['uuu', proc{p 'uuu'}, 0],
['vvv', proc{p 'vvv'}, 0],
],
0, '',
{:font=>'Courier 16 italic',
:menu_config=>{:font=>'Times -18 bold', :foreground=>'black'}}],
'---',
['Quit', proc{exit}, 0]],
[['Edit', 0],
['Cut', proc{puts('Cut clicked')}, 2],
['Copy', proc{puts('Copy clicked')}, 0],
['Paste', proc{puts('Paste clicked')}, 0]],
[['Help', 0, {:menu_name=>'help'}],
['About This', proc{puts('Ruby/Tk menubar sample 1')}, 6]]
]
menubar = TkMenubar.new(nil, menu_spec,
'tearoff'=>false,
'foreground'=>'grey40',
'activeforeground'=>'red',
'font'=>'Helvetia 12 bold')
menubar.pack('side'=>'top', 'fill'=>'x')
TkText.new(:wrap=>'word').pack.insert('1.0', 'Please read the sample source, and check how to override default configure options of menu entries on a menu_spec. Maybe, on windows, this menubar does not work properly about keyboard shortcuts. Then, please use "menu" option of root/toplevel widget (see sample/menubar2.rb).')
Tk.mainloop

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#
# menubar sample 2 : use 'menu' option of root/toplevel widget
#
require 'tk'
radio_var = TkVariable.new('y')
menu_spec = [
[['File', 0],
{:label=>'Open', :command=>proc{puts('Open clicked')}, :underline=>0},
'---',
['Check_A', TkVariable.new(true), 6],
{:type=>'checkbutton', :label=>'Check_B',
:variable=>TkVariable.new, :underline=>6},
'---',
['Radio_X', [radio_var, 'x'], 6, '', {:foreground=>'black'}],
['Radio_Y', [radio_var, 'y'], 6],
['Radio_Z', [radio_var, 'z'], 6],
'---',
['cascade', [
['sss', proc{p 'sss'}, 0],
['ttt', proc{p 'ttt'}, 0],
['uuu', proc{p 'uuu'}, 0],
['vvv', proc{p 'vvv'}, 0],
],
0, '',
{:font=>'Courier 16 italic',
:menu_config=>{:font=>'Times -18 bold', :foreground=>'black'}}],
'---',
['Quit', proc{exit}, 0]],
[['Edit', 0],
['Cut', proc{puts('Cut clicked')}, 2],
['Copy', proc{puts('Copy clicked')}, 0],
['Paste', proc{puts('Paste clicked')}, 0]],
[['Help', 0, {:menu_name=>'help'}],
['About This', proc{puts('Ruby/Tk menubar sample 2')}, 6]]
]
mbar = Tk.root.add_menubar(menu_spec,
# followings are default configure options
'tearoff'=>'false',
'foreground'=>'grey40',
'activeforeground'=>'red',
'font'=>'Helvetia 12 bold')
# This (default configure options) is NOT same the following.
#
# mbar = Tk.root.add_menubar(menu_spec)
# mbar.configure('foreground'=>'grey40', 'activeforeground'=>'red',
# 'font'=>'Helvetia 12 bold')
TkText.new(:wrap=>'word').pack.insert('1.0', 'Please read the sample source, and check how to override default configure options of menu entries on a menu_spec.')
Tk.mainloop