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#
# tk/event.rb - module for event
#
unless $LOADED_FEATURES.member?('tk.rb')
# change loading order
$LOADED_FEATURES.delete('tk/event.rb')
require 'tkutil'
require 'tk'
else
################################################
module TkEvent
class Event < TkUtil::CallbackSubst
module TypeNum
KeyPress = 2
KeyRelease = 3
ButtonPress = 4
ButtonRelease = 5
MotionNotify = 6
EnterNotify = 7
LeaveNotify = 8
FocusIn = 9
FocusOut = 10
KeymapNotify = 11
Expose = 12
GraphicsExpose = 13
NoExpose = 14
VisibilityNotify = 15
CreateNotify = 16
DestroyNotify = 17
UnmapNotify = 18
MapNotify = 19
MapRequest = 20
ReparentNotify = 21
ConfigureNotify = 22
ConfigureRequest = 23
GravityNotify = 24
ResizeRequest = 25
CirculateNotify = 26
CirculateRequest = 27
PropertyNotify = 28
SelectionClear = 29
SelectionRequest = 30
SelectionNotify = 31
ColormapNotify = 32
ClientMessage = 33
MappingNotify = 34
end
# [ <'%' subst-key char>, <proc type char>, <instance var (accessor) name>]
KEY_TBL = [
[ ?#, ?n, :serial ],
[ ?a, ?s, :above ],
[ ?b, ?n, :num ],
[ ?c, ?n, :count ],
[ ?d, ?s, :detail ],
[ ?f, ?b, :focus ],
[ ?h, ?n, :height ],
[ ?i, ?s, :win_hex ],
[ ?k, ?n, :keycode ],
[ ?m, ?s, :mode ],
[ ?o, ?b, :override ],
[ ?p, ?s, :place ],
[ ?s, ?x, :state ],
[ ?t, ?n, :time ],
[ ?w, ?n, :width ],
[ ?x, ?n, :x ],
[ ?y, ?n, :y ],
[ ?A, ?s, :char ],
[ ?B, ?n, :borderwidth ],
[ ?D, ?n, :wheel_delta ],
[ ?E, ?b, :send_event ],
[ ?K, ?s, :keysym ],
[ ?N, ?n, :keysym_num ],
[ ?R, ?s, :rootwin_id ],
[ ?S, ?s, :subwindow ],
[ ?T, ?n, :type ],
[ ?W, ?w, :widget ],
[ ?X, ?n, :x_root ],
[ ?Y, ?n, :y_root ],
nil
]
# [ <proc type char>, <proc/method to convert tcl-str to ruby-obj>]
PROC_TBL = [
[ ?n, TkComm.method(:num_or_str) ],
[ ?s, TkComm.method(:string) ],
[ ?b, TkComm.method(:bool) ],
[ ?w, TkComm.method(:window) ],
[ ?x, proc{|val|
begin
TkComm::number(val)
rescue ArgumentError
val
end
}
],
nil
]
# setup tables to be used by scan_args, _get_subst_key, _get_all_subst_keys
#
# _get_subst_key() and _get_all_subst_keys() generates key-string
# which describe how to convert callback arguments to ruby objects.
# When binding parameters are given, use _get_subst_key().
# But when no parameters are given, use _get_all_subst_keys() to
# create a Event class object as a callback parameter.
#
# scan_args() is used when doing callback. It convert arguments
# ( which are Tcl strings ) to ruby objects based on the key string
# that is generated by _get_subst_key() or _get_all_subst_keys().
#
_setup_subst_table(KEY_TBL, PROC_TBL);
#
# NOTE: The order of parameters which passed to callback procedure is
# <extra_arg>, <extra_arg>, ... , <subst_arg>, <subst_arg>, ...
#
# If you need support extra arguments given by Tcl/Tk,
# please override _get_extra_args_tbl
#
#def self._get_extra_args_tbl
# # return an array of convert procs
# []
#end
end
def install_bind_for_event_class(klass, cmd, *args)
extra_args_tbl = klass._get_extra_args_tbl
if args.compact.size > 0
args = args.join(' ')
keys = klass._get_subst_key(args)
if cmd.kind_of?(String)
id = cmd
elsif cmd.kind_of?(TkCallbackEntry)
id = install_cmd(cmd)
else
id = install_cmd(proc{|*arg|
ex_args = []
extra_args_tbl.reverse_each{|conv| ex_args << conv.call(arg.pop)}
TkUtil.eval_cmd(cmd, *(ex_args.concat(klass.scan_args(keys, arg))))
})
end
id + ' ' + args
else
keys, args = klass._get_all_subst_keys
if cmd.kind_of?(String)
id = cmd
elsif cmd.kind_of?(TkCallbackEntry)
id = install_cmd(cmd)
else
id = install_cmd(proc{|*arg|
ex_args = []
extra_args_tbl.reverse_each{|conv| ex_args << conv.call(arg.pop)}
TkUtil.eval_cmd(cmd,
*(ex_args << klass.new(*klass.scan_args(keys, arg))))
})
end
id + ' ' + args
end
end
def install_bind(cmd, *args)
install_bind_for_event_class(TkEvent::Event, cmd, *args)
end
end
################################################
end
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