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# -*- coding: euc-jp -*-
#
# animated label widget demo (called by 'widget')
#
# based on Tcl/Tk8.5a2 widget demos
# toplevel widget が存在すれば削除する
if defined?($anilabel_demo) && $anilabel_demo
$anilabel_demo.destroy
$anilabel_demo = nil
end
# demo 用の toplevel widget を生成
$anilabel_demo = TkToplevel.new {|w|
title("Animated Label Demonstration")
iconname("anilabel")
positionWindow(w)
}
# label 生成
msg = TkLabel.new($anilabel_demo) {
font $font
wraplength '4i'
justify 'left'
text "下には4つのアニメーションラベルが表示されています。左側にあるラベルは、内部のテキストメッセージをスクロールしたように見せることで動きを付けています。右側のラベルは、表示するイメージを変化させることで動きを与えています。"
}
msg.pack('side'=>'top')
# frame 生成
TkFrame.new($anilabel_demo) {|frame|
TkButton.new(frame) {
#text '了解'
text '閉じる'
command proc{
tmppath = $anilabel_demo
$anilabel_demo = nil
tmppath.destroy
}
}.pack('side'=>'left', 'expand'=>'yes')
TkButton.new(frame) {
text 'コード参照'
command proc{showCode 'anilabel'}
}.pack('side'=>'left', 'expand'=>'yes')
}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
# label demo 用フレーム生成
f_left = TkLabelFrame.new($anilabel_demo, :text=>'Scrolling Texts')
f_right = TkLabelFrame.new($anilabel_demo, :text=>'GIF Image')
Tk.pack(f_left, f_right, 'side'=>'left', 'expand'=>'yes', 'fill'=>'both',
'padx'=>10, 'pady'=>10)
# animated label
class AnimatedTextLabel < TkLabel
def initialize(*args)
super(*args)
@timer = TkTimer.new{ _animation_callback }
@timer.loop_exec = -1
# bind('Destroy'){ @timer.stop }
@btag = TkBindTag.new('Destroy'){ @timer.stop }
self.bindtags_unshift(@btag)
end
def _animation_callback()
txt = self.text
self.text = (txt[1..-1] << txt[0])
end
private :_animation_callback
def start(interval)
@timer.set_interval(interval)
@timer.start
end
def stop
@timer.stop
end
end
# animated image
class AnimatedImageLabel < AnimatedTextLabel
def initialize(*args)
super(*args)
@destroy_image = false
@btag.bind_append('Destroy'){
if @destroy_image
begin
self.image.delete
rescue
end
end
}
end
attr_accessor :destroy_image
def _animation_callback()
img = self.image
fmt = img.format
if fmt.kind_of?(Array)
if fmt[1].kind_of?(Hash)
# fmt == ['GIF', {'index'=>idx}]
idx = fmt[1]['index']
else
# fmt == ['GIF', '-index', idx] :: Ruby1.8.2 returns this.
idx = fmt[2]
end
elsif fmt.kind_of?(String) && fmt =~ /GIF -index (\d+)/
idx = $1.to_i
else
idx = -1
end
begin
img.format("GIF -index #{idx + 1}")
rescue => e
img.format("GIF -index 0")
end
end
private :_animation_callback
end
# label 生成
l1 = AnimatedTextLabel.new(f_left, :borderwidth=>4, :relief=>:ridge,
:font=>{:family=>'Courier', :size=>10})
l2 = AnimatedTextLabel.new(f_left, :borderwidth=>4, :relief=>:groove,
:font=>{:family=>'Courier', :size=>10})
l3 = AnimatedTextLabel.new(f_left, :borderwidth=>4, :relief=>:flat,
:font=>{:family=>'Courier', :size=>10}, :width=>18)
Tk.pack(l1, l2, l3,
:side=>:top, :expand=>true, :anchor=>:w, :padx=>10, :pady=>10)
limg = AnimatedImageLabel.new(f_right, :borderwidth=>0)
limg.pack(:side=>:top, :expand=>true, :padx=>10, :pady=>10)
# base64-encoded animated GIF file
tclPowerdData = <<EOD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EOD
l1.text('* Slow Animation *').start(300)
l2.text('* Fast Animation *').start(80)
l3.text('This is a longer scrolling text in a widget that will not show the whole message at once. ').start(150)
limg.destroy_image = true
limg.image(TkPhotoImage.new(:format=>'GIF', :data=>tclPowerdData)).start(100)
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