# # 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 initialize(keys=nil) # @path = Tk_Image_ID.join('') @path = Tk_Image_ID.join(TkCore::INTERP._ip_id_) Tk_Image_ID[1].succ! tk_call_without_enc('image', 'create', @type, @path, *hash_kv(keys, true)) 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 initialize(*args) @type = 'bitmap' super 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 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