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ruby--ruby/ext/tk/sample/demos-jp/image2.rb
matz a25fbe3b3e * encoding.c: provide basic features for M17N.
* parse.y: encoding aware parsing.

* parse.y (pragma_encoding): encoding specification pragma.

* parse.y (rb_intern3): encoding specified symbols.

* string.c (rb_str_length): length based on characters.  
  for older behavior, bytesize method added.

* string.c (rb_str_index_m): index based on characters.  rindex as
  well.

* string.c (succ_char): encoding aware succeeding string.

* string.c (rb_str_reverse): reverse based on characters.

* string.c (rb_str_inspect): encoding aware string description.

* string.c (rb_str_upcase_bang): encoding aware case conversion.
  downcase, capitalize, swapcase as well.

* string.c (rb_str_tr_bang): tr based on characters.  delete,
  squeeze, tr_s, count as well.

* string.c (rb_str_split_m): split based on characters.

* string.c (rb_str_each_line): encoding aware each_line.

* string.c (rb_str_each_char): added.  iteration based on
  characters.

* string.c (rb_str_strip_bang): encoding aware whitespace
  stripping.  lstrip, rstrip as well.

* string.c (rb_str_justify): encoding aware justifying (ljust,
  rjust, center).

* string.c (str_encoding): get encoding attribute from a string. 

* re.c (rb_reg_initialize): encoding aware regular expression

* sprintf.c (rb_str_format): formatting (i.e. length count) based
  on characters.

* io.c (rb_io_getc): getc to return one-character string.
  for older behavior, getbyte method added.

* ext/stringio/stringio.c (strio_getc): ditto.

* io.c (rb_io_ungetc): allow pushing arbitrary string at the
  current reading point.

* ext/stringio/stringio.c (strio_ungetc): ditto.

* ext/strscan/strscan.c: encoding support.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13261 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2007-08-25 03:29:39 +00:00

103 lines
2.7 KiB
Ruby

# -*- coding: euc-jp -*-
#
# widget demo 'load image' (called by 'widget')
#
# toplevel widget が存在すれば削除する
if defined?($image2_demo) && $image2_demo
$image2_demo.destroy
$image2_demo = nil
end
# demo 用の toplevel widget を生成
$image2_demo = TkToplevel.new {|w|
title('Image Demonstration #2')
iconname("Image2")
positionWindow(w)
}
# label 生成
msg = TkLabel.new($image2_demo) {
font $font
wraplength '4i'
justify 'left'
text "このデモではTkの photo image を使用して画像を見ることができます。最初にエントリ内ににディレクトリ名を入れて下さい。次に下のリストボックスにこのディレクトリをロードするため、リターンを押してください。その後、画像を選択するためにリストボックスの中のファイル名をダブルクリックして下さい。"
}
msg.pack('side'=>'top')
# frame 生成
TkFrame.new($image2_demo) {|frame|
TkButton.new(frame) {
#text '了解'
text '閉じる'
command proc{
tmppath = $image2_demo
$image2_demo = nil
tmppath.destroy
}
}.pack('side'=>'left', 'expand'=>'yes')
TkButton.new(frame) {
text 'コード参照'
command proc{showCode 'image2'}
}.pack('side'=>'left', 'expand'=>'yes')
}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
# 変数生成
$dirName = TkVariable.new([$demo_dir,'..','images'].join(File::Separator))
# image 生成
$image2a = TkPhotoImage.new
# ファイル名入力部
TkLabel.new($image2_demo, 'text'=>'ディレクトリ:')\
.pack('side'=>'top', 'anchor'=>'w')
image2_e = TkEntry.new($image2_demo) {
width 30
textvariable $dirName
}.pack('side'=>'top', 'anchor'=>'w')
TkFrame.new($image2_demo, 'height'=>'3m', 'width'=>20)\
.pack('side'=>'top', 'anchor'=>'w')
TkLabel.new($image2_demo, 'text'=>'ファイル:')\
.pack('side'=>'top', 'anchor'=>'w')
TkFrame.new($image2_demo){|w|
s = TkScrollbar.new(w)
l = TkListbox.new(w) {
width 20
height 10
yscrollcommand proc{|first,last| s.set first,last}
}
s.command(proc{|*args| l.yview(*args)})
l.pack('side'=>'left', 'expand'=>'yes', 'fill'=>'y')
s.pack('side'=>'left', 'expand'=>'yes', 'fill'=>'y')
#l.insert(0,'earth.gif', 'earthris.gif', 'mickey.gif', 'teapot.ppm')
l.insert(0,'earth.gif', 'earthris.gif', 'teapot.ppm')
l.bind('Double-1', proc{|x,y| loadImage $image2a,l,x,y}, '%x %y')
image2_e.bind 'Return', proc{loadDir l}
}.pack('side'=>'top', 'anchor'=>'w')
# image 配置
[ TkFrame.new($image2_demo, 'height'=>'3m', 'width'=>20),
TkLabel.new($image2_demo, 'text'=>'画像:'),
TkLabel.new($image2_demo, 'image'=>$image2a)
].each{|w| w.pack('side'=>'top', 'anchor'=>'w')}
# メソッド定義
def loadDir(w)
w.delete(0,'end')
Dir.glob([$dirName,'*'].join(File::Separator)).sort.each{|f|
w.insert('end',File.basename(f))
}
end
def loadImage(img,w,x,y)
img.file([$dirName, w.get("@#{x},#{y}")].join(File::Separator))
end