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#
# tk/image.rb : treat Tk image objects
#
require 'tk'
class TkImage<TkObject
include Tk
TkCommandNames = ['image'.freeze].freeze
Tk_IMGTBL = TkCore::INTERP.create_table
Tk_Image_ID = ['i'.freeze, '00000'.taint].freeze
TkCore::INTERP.init_ip_env{ Tk_IMGTBL.clear }
def self.new(keys=nil)
if keys.kind_of?(Hash)
name = nil
if keys.key?(:imagename)
name = keys[:imagename]
elsif keys.key?('imagename')
name = keys['imagename']
end
if name
if name.kind_of?(TkImage)
obj = name
else
name = _get_eval_string(name)
obj = Tk_IMGTBL[name]
end
if obj
if !(keys[:without_creating] || keys['without_creating'])
keys = _symbolkey2str(keys)
keys.delete('imagename')
keys.delete('without_creating')
obj.instance_eval{
tk_call_without_enc('image', 'create',
@type, @path, *hash_kv(keys, true))
}
end
return obj
end
end
end
super(keys)
end
def initialize(keys=nil)
@path = nil
without_creating = false
if keys.kind_of?(Hash)
keys = _symbolkey2str(keys)
@path = keys.delete('imagename')
without_creating = keys.delete('without_creating')
end
unless @path
# @path = Tk_Image_ID.join('')
@path = Tk_Image_ID.join(TkCore::INTERP._ip_id_)
Tk_Image_ID[1].succ!
end
unless without_creating
tk_call_without_enc('image', 'create',
@type, @path, *hash_kv(keys, true))
end
Tk_IMGTBL[@path] = self
end
def delete
Tk_IMGTBL.delete(@id) if @id
tk_call_without_enc('image', 'delete', @path)
self
end
def height
number(tk_call_without_enc('image', 'height', @path))
end
def inuse
bool(tk_call_without_enc('image', 'inuse', @path))
end
def itemtype
tk_call_without_enc('image', 'type', @path)
end
def width
number(tk_call_without_enc('image', 'width', @path))
end
def TkImage.names
Tk.tk_call_without_enc('image', 'names').split.collect!{|id|
(Tk_IMGTBL[id])? Tk_IMGTBL[id] : id
}
end
def TkImage.types
Tk.tk_call_without_enc('image', 'types').split
end
end
class TkBitmapImage<TkImage
def __strval_optkeys
super() + ['maskdata', 'maskfile']
end
private :__strval_optkeys
def initialize(*args)
@type = 'bitmap'
super(*args)
end
end
class TkPhotoImage<TkImage
NullArgOptionKeys = [ "shrink", "grayscale" ]
def _photo_hash_kv(keys)
keys = _symbolkey2str(keys)
NullArgOptionKeys.collect{|opt|
if keys[opt]
keys[opt] = None
else
keys.delete(opt)
end
}
keys.collect{|k,v|
['-' << k, v]
}.flatten
end
private :_photo_hash_kv
def initialize(*args)
@type = 'photo'
super(*args)
end
def blank
tk_send_without_enc('blank')
self
end
def cget(option)
case option.to_s
when 'data', 'file'
tk_send 'cget', '-' << option.to_s
else
tk_tcl2ruby(tk_send('cget', '-' << option.to_s))
end
end
def copy(src, *opts)
if opts.size == 0
tk_send('copy', src)
elsif opts.size == 1 && opts[0].kind_of?(Hash)
tk_send('copy', src, *_photo_hash_kv(opts[0]))
else
# for backward compatibility
args = opts.collect{|term|
if term.kind_of?(String) && term.include?(?\s)
term.split
else
term
end
}.flatten
tk_send('copy', src, *args)
end
self
end
def data(keys={})
#tk_send('data', *_photo_hash_kv(keys))
tk_split_list(tk_send('data', *_photo_hash_kv(keys)))
end
def get(x, y)
tk_send('get', x, y).split.collect{|n| n.to_i}
end
def put(data, *opts)
if opts == []
tk_send('put', data)
elsif opts.size == 1 && opts[0].kind_of?(Hash)
tk_send('put', data, *_photo_hash_kv(opts[0]))
else
# for backward compatibility
tk_send('put', data, '-to', *opts)
end
self
end
def read(file, *opts)
if opts.size == 0
tk_send('read', file)
elsif opts.size == 1 && opts[0].kind_of?(Hash)
tk_send('read', file, *_photo_hash_kv(opts[0]))
else
# for backward compatibility
args = opts.collect{|term|
if term.kind_of?(String) && term.include?(?\s)
term.split
else
term
end
}.flatten
tk_send('read', file, *args)
end
self
end
def redither
tk_send 'redither'
self
end
def get_transparency(x, y)
bool(tk_send('transparency', 'get', x, y))
end
def set_transparency(x, y, st)
tk_send('transparency', 'set', x, y, st)
self
end
def write(file, *opts)
if opts.size == 0
tk_send('write', file)
elsif opts.size == 1 && opts[0].kind_of?(Hash)
tk_send('write', file, *_photo_hash_kv(opts[0]))
else
# for backward compatibility
args = opts.collect{|term|
if term.kind_of?(String) && term.include?(?\s)
term.split
else
term
end
}.flatten
tk_send('write', file, *args)
end
self
end
end
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