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|
#
# Canvas Text widget demo (called by 'widget')
#
# toplevel widget ¸ߤк
if defined?($ctext_demo) && $ctext_demo
$ctext_demo.destroy
$ctext_demo = nil
end
# demo Ѥ toplevel widget
$ctext_demo = TkToplevel.new {|w|
title("Canvas Text Demonstration")
iconname("Text")
positionWindow(w)
}
# label
TkLabel.new($ctext_demo, 'font'=>$font, 'wraplength'=>'5i', 'justify'=>'left',
'text'=>"ΥɥˤϥХwidgetΥƥȵǽǥ⤹뤿ΥƥʸɽƤޤޥͳѤ˻äƤåȰ֤Ѥа֤Ѥꡢ·Ѥꤹ뤳ȤǤޤޤʲΤ褦ԽΤδñʥХǥݡȤƤޤ
1. ޥäƤåϤǤޤ
2. ܥ1Ǥޤ
3. ޥΰ֤˥ܥ2ƥȤԡǤޤ
4.Хåڡȥ-Hľʸޤ
5. Deleteľʸޤ"){
pack('side'=>'top')
}
# frame
$ctext_buttons = TkFrame.new($ctext_demo) {|frame|
TkButton.new(frame) {
#text 'λ'
text 'Ĥ'
command proc{
tmppath = $ctext_demo
$ctext_demo = nil
tmppath.destroy
}
}.pack('side'=>'left', 'expand'=>'yes')
TkButton.new(frame) {
text 'ɻ'
command proc{showCode 'ctext'}
}.pack('side'=>'left', 'expand'=>'yes')
}
$ctext_buttons.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
# canvas
$ctext_canvas = TkCanvas.new($ctext_demo, 'relief'=>'flat',
'borderwidth'=>0, 'width'=>500, 'height'=>350)
$ctext_canvas.pack('side'=>'top', 'expand'=>'yes', 'fill'=>'both')
# font
textFont = '-*-Helvetica-Medium-R-Normal--*-240-*-*-*-*-*-*'
# canvas
TkcRectangle.new($ctext_canvas, 245, 195, 255, 205,
'outline'=>'black', 'fill'=>'red')
$ctag_text = TkcTag.new($ctext_canvas)
$ctag_text.withtag(TkcText.new($ctext_canvas, 250, 200,
'text'=>"ϥХwidgetΥƥȵǽǥ⤹뤿ʸǤ\nǽҤ٤褦ԽǽȤ뤿ΥХǥܤƤޤ",
'width'=>440, 'anchor'=>'n',
'font'=>'-*-Helvetica-Medium-R-Normal--*-240-*-*-*-*-*-*',
'kanjifont'=>'-*-r-*--24-*-jisx0208.1983-0',
'justify'=>'left') )
$ctag_text.bind('1', proc{|x,y| textB1Press $ctext_canvas,x,y}, "%x %y")
$ctag_text.bind('B1-Motion', proc{|x,y| textB1Move $ctext_canvas,x,y}, "%x %y")
$ctag_text.bind('Shift-1',
proc{|x,y| $ctext_canvas.seleect_adjust 'current', "@#{x},#{y}"},
"%x %y")
$ctag_text.bind('Shift-B1-Motion',
proc{|x,y| textB1Move $ctext_canvas,x,y}, "%x %y")
$ctag_text.bind('KeyPress', proc{|a| textInsert $ctext_canvas,a}, "%A")
$ctag_text.bind('Return', proc{textInsert $ctext_canvas,"\n"})
$ctag_text.bind('Control-h', proc{textBs $ctext_canvas})
$ctag_text.bind('BackSpace', proc{textBs $ctext_canvas})
$ctag_text.bind('Delete', proc{textDel $ctext_canvas})
$ctag_text.bind('2', proc{|x,y| textPaste $ctext_canvas, "@#{x},#{y}"},
"%x %y")
# Next, create some items that allow the text's anchor position
# to be edited.
def mkTextConfig(w,x,y,option,value,color)
item = TkcRectangle.new(w, x, y, x+30, y+30,
'outline'=>'black', 'fill'=>color, 'width'=>1)
item.bind('1', proc{$ctag_text.configure option, value})
w.addtag_withtag('config', item)
end
x = 50
y = 50
color = 'LightSkyBlue1'
mkTextConfig $ctext_canvas, x, y, 'anchor', 'se', color
mkTextConfig $ctext_canvas, x+30, y, 'anchor', 's', color
mkTextConfig $ctext_canvas, x+60, y, 'anchor', 'sw', color
mkTextConfig $ctext_canvas, x, y+30, 'anchor', 'e', color
mkTextConfig $ctext_canvas, x+30, y+30, 'anchor', 'center', color
mkTextConfig $ctext_canvas, x+60, y+30, 'anchor', 'w', color
mkTextConfig $ctext_canvas, x, y+60, 'anchor', 'ne', color
mkTextConfig $ctext_canvas, x+30, y+60, 'anchor', 'n', color
mkTextConfig $ctext_canvas, x+60, y+60, 'anchor', 'nw', color
item = TkcRectangle.new($ctext_canvas, x+40, y+40, x+50, y+50,
'outline'=>'black', 'fill'=>'red')
item.bind('1', proc{$ctag_text.configure 'anchor', 'center'})
TkcText.new($ctext_canvas, x+45, y-5, 'text'=>'Text Position', 'anchor'=>'s',
'font'=>'-*-times-medium-r-normal--*-240-*-*-*-*-*-*',
'fill'=>'brown')
# Lastly, create some items that allow the text's justification to be
# changed.
x = 350
y = 50
color = 'SeaGreen2'
mkTextConfig $ctext_canvas, x, y, 'justify', 'left', color
mkTextConfig $ctext_canvas, x+30, y, 'justify', 'center', color
mkTextConfig $ctext_canvas, x+60, y, 'justify', 'right', color
TkcText.new($ctext_canvas, x+45, y-5, 'text'=>'Justification', 'anchor'=>'s',
'font'=>'-*-times-medium-r-normal--*-240-*-*-*-*-*-*',
'fill'=>'brown')
$ctext_canvas.itembind('config', 'Enter', proc{textEnter $ctext_canvas})
$ctext_canvas.itembind('config', 'Leave',
proc{$ctext_canvas\
.itemconfigure('current',
'fill'=>$textConfigFill)})
$textConfigFill = ''
def textEnter(w)
$textConfigFill = (w.itemconfiginfo 'current', 'fill')[4]
w.itemconfigure 'current', 'fill', 'black'
end
def textInsert(w, string)
return if string == ""
begin
$ctag_text.dchars 'sel.first', 'sel.last'
rescue
end
$ctag_text.insert 'insert', string
end
def textPaste(w, pos)
begin
$ctag_text.insert pos, TkSelection.get
rescue
end
end
def textB1Press(w,x,y)
w.icursor 'current', "@#{x},#{y}"
w.itemfocus 'current'
w.focus
w.select_from 'current', "@#{x},#{y}"
end
def textB1Move(w,x,y)
w.select_to 'current', "@#{x},#{y}"
end
def textBs(w)
begin
$ctag_text.dchars 'sel.first', 'sel.last'
rescue
char = $ctag_text.index('insert').to_i - 1
$ctag_text.dchars(char) if char >= 0
end
end
def textDel(w)
begin
$ctag_text.dchars 'sel.first', 'sel.last'
rescue
$ctag_text.dchars 'insert'
end
end
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