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diff --git a/ext/tk/sample/demos-en/twind2.rb b/ext/tk/sample/demos-en/twind2.rb
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+#
+# text (embedded windows) widget demo 2 (called by 'widget')
+#
+
+# delete toplevel widget
+if defined?($twind2_demo) && $twind2_demo
+ $twind2_demo.destroy
+ $twind2_demo = nil
+end
+
+# demo toplevel widget
+$twind2_demo = TkToplevel.new {|w|
+ title("Text Demonstration - Embedded Windows 2")
+ iconname("Embedded Windows")
+ positionWindow(w)
+}
+
+# frame
+$twind2_buttons = TkFrame.new($twind2_demo) {|frame|
+ TkGrid(TkFrame.new(frame, :height=>2, :relief=>:sunken, :bd=>2),
+ :columnspan=>4, :row=>0, :sticky=>'ew', :pady=>2)
+ TkGrid('x',
+ TkButton.new(frame, :text=>'See Code',
+ :image=>$image['view'], :compound=>:left,
+ :command=>proc{showCode 'twind2'}),
+ TkButton.new(frame, :text=>'Dismiss',
+ :image=>$image['delete'], :compound=>:left,
+ :command=>proc{
+ tmppath = $twind2_demo
+ $twind2_demo = nil
+ $showVarsWin[tmppath.path] = nil
+ tmppath.destroy
+ }),
+ :padx=>4, :pady=>4)
+ frame.grid_columnconfigure(0, :weight=>1)
+}
+$twind2_buttons.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
+
+# frame
+$twind2_text = nil
+TkFrame.new($twind2_demo, 'highlightthickness'=>2, 'borderwidth'=>2,
+ 'relief'=>'sunken') {|f|
+ $twind2_text = TkText.new(f, 'setgrid'=>true, 'font'=>$font,
+ # 'width'=>'70', 'height'=>35, 'wrap'=>'word',
+ 'width'=>'70', 'height'=>35, 'wrap'=>'char',
+ 'highlightthickness'=>0, 'borderwidth'=>0 ){|t|
+ TkScrollbar.new(f) {|s|
+ command proc{|*args| t.yview(*args)}
+ t.yscrollcommand proc{|first,last| s.set first,last}
+ }.pack('side'=>'right', 'fill'=>'y')
+ }.pack('expand'=>'yes', 'fill'=>'both')
+}.pack('expand'=>'yes', 'fill'=>'both')
+
+# text tags
+$tag2_center = TkTextTag.new($twind2_text,
+ 'justify' =>'center',
+ 'spacing1'=>'5m',
+ 'spacing3'=>'5m' )
+$tag2_buttons = TkTextTag.new($twind2_text,
+ 'lmargin1'=>'1c',
+ 'lmargin2'=>'1c',
+ 'rmargin' =>'1c',
+ 'spacing1'=>'3m',
+ 'spacing2'=>0,
+ 'spacing3'=>0 )
+
+# insert text
+$twind2_text.insert('end',
+ 'A text widget can contain many different kinds of items, ')
+$twind2_text.insert('end',
+ "both active and passive. It can lay these out in various ")
+$twind2_text.insert('end',
+ "ways, with wrapping, tabs, centering, etc. In addition, ")
+$twind2_text.insert('end',
+ "when the contents are too big for the window, smooth ")
+$twind2_text.insert('end', "scrolling in all directions is provided.\n\n")
+
+$twind2_text.insert('end', "A text widget can contain other widgets embedded ")
+$twind2_text.insert('end', "it. These are called \"embedded windows\", ")
+$twind2_text.insert('end', "and they can consist of arbitrary widgets. ")
+$twind2_text.insert('end', "For example, here are two embedded button ")
+$twind2_text.insert('end', "widgets. You can click on the first button to ")
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text) {
+ text 'ON'
+ command proc{textWindOn2 $twind2_text,$twind2_buttons}
+ cursor 'top_left_arrow'
+ })
+$twind2_text.insert('end', " horizontal scrolling, which also turns off ")
+$twind2_text.insert('end', "word wrapping. Or, you can click on the second ")
+$twind2_text.insert('end', "button to\n")
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text) {
+ text 'OFF'
+ command proc{textWindOff2 $twind2_text}
+ cursor 'top_left_arrow'
+ })
+$twind2_text.insert('end',
+ " horizontal scrolling and turn back on word wrapping.\n\n")
+
+$twind2_text.insert('end', "Or, here is another example. If you ")
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text) {
+ text 'Click Here'
+ command proc{textWindPlot2 $twind2_text}
+ cursor 'top_left_arrow'
+ })
+$twind2_text.insert('end',
+ " a canvas displaying an x-y plot will appear right here.")
+$mark2_plot = TkTextMark.new($twind2_text, 'insert')
+$mark2_plot.gravity='left'
+$twind2_text.insert('end',
+ " You can drag the data points around with the mouse, ")
+$twind2_text.insert('end', "or you can click here to ")
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text) {
+ text 'Delete'
+ command proc{textWindDel2 $twind2_text}
+ cursor 'top_left_arrow'
+ })
+$twind2_text.insert('end', " the plot again.\n\n")
+
+$twind2_text.insert('end',
+ "You may also find it useful to put embedded windows in ")
+$twind2_text.insert('end',
+ "a text without any actual text. In this case the ")
+$twind2_text.insert('end', "text widget acts like a geometry manager. For ")
+$twind2_text.insert('end',
+ "example, here is a collection of buttons laid out ")
+$twind2_text.insert('end',
+ "neatly into rows by the text widget. These buttons ")
+$twind2_text.insert('end',
+ "can be used to change the background color of the ")
+$twind2_text.insert('end', "text widget (\"Default\" restores the color to ")
+$twind2_text.insert('end',
+ "its default). If you click on the button labeled ")
+$twind2_text.insert('end', "\"Short\", it changes to a longer string so that ")
+$twind2_text.insert('end', "you can see how the text widget automatically ")
+$twind2_text.insert('end', "changes the layout. Click on the button again ")
+$twind2_text.insert('end', "to restore the short string.\n")
+
+btn_default = TkButton.new($twind2_text) {|b|
+ text 'Default'
+ command proc{embDefBg2 $twind2_text}
+ cursor 'top_left_arrow'
+}
+TkTextWindow.new($twind2_text, 'end', 'window'=>btn_default, 'padx'=>3)
+embToggle = TkVariable.new('Short')
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkCheckButton.new($twind2_text) {
+ textvariable embToggle
+ indicatoron 0
+ variable embToggle
+ onvalue 'A much longer string'
+ offvalue 'Short'
+ cursor 'top_left_arrow'
+ pady 5
+ padx 2
+ },
+ 'padx'=>3,
+ 'pady'=>2 )
+
+[ 'AntiqueWhite3', 'Bisque1', 'Bisque2', 'Bisque3', 'Bisque4',
+ 'SlateBlue3', 'RoyalBlue1', 'SteelBlue2', 'DeepSkyBlue3', 'LightBlue1',
+ 'DarkSlateGray1', 'Aquamarine2', 'DarkSeaGreen2', 'SeaGreen1',
+ 'Yellow1', 'IndianRed1', 'IndianRed2', 'Tan1', 'Tan4'
+].each{|twind_color|
+ TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text) {
+ text twind_color
+ cursor 'top_left_arrow'
+ command proc{$twind2_text.bg twind_color}
+ },
+ 'padx'=>3,
+ 'pady'=>2 )
+}
+
+$tag2_buttons.add(btn_default, 'end')
+
+$text_normal2 = {}
+$text_normal2['border'] = $twind2_text.cget('borderwidth')
+$text_normal2['highlight'] = $twind2_text.cget('highlightthickness')
+$text_normal2['pad'] = $twind2_text.cget('padx')
+
+$twind2_text.insert('end', "\nYou can also change the usual border width and ")
+$twind2_text.insert('end', "highlightthickness and padding.\n")
+
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text, :text=>"Big borders",
+ :cursor=>'top_left_arrow',
+ 'command'=>proc{
+ textWinBigB2 $twind2_text
+ }))
+
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text, :text=>"Small borders",
+ :cursor=>'top_left_arrow',
+ 'command'=>proc{
+ textWinSmallB2 $twind2_text
+ }))
+
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text, :text=>"Big highlight",
+ :cursor=>'top_left_arrow',
+ 'command'=>proc{
+ textWinBigH2 $twind2_text
+ }))
+
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text, :text=>"Small highlight",
+ :cursor=>'top_left_arrow',
+ 'command'=>proc{
+ textWinSmallH2 $twind2_text
+ }))
+
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text, :text=>"Big pad",
+ :cursor=>'top_left_arrow',
+ 'command'=>proc{
+ textWinBigP2 $twind2_text
+ }))
+
+TkTextWindow.new($twind2_text, 'end',
+ 'window'=>TkButton.new($twind2_text, :text=>"Small pad",
+ :cursor=>'top_left_arrow',
+ 'command'=>proc{
+ textWinSmallP2 $twind2_text
+ }))
+
+$twind2_text.insert('end',
+ "\n\nFinally, images fit comfortably in text widgets too:")
+
+TkTextImage.new($twind2_text, 'end',
+ 'image'=>TkBitmapImage.new(:file=>[
+ $demo_dir, '..',
+ 'images', 'face.xbm'
+ ].join(File::Separator)))
+
+# methods
+def textWinBigB2(w)
+ w.borderwidth 15
+end
+def textWinSmallB2(w)
+ w.borderwidth $text_normal2['border']
+end
+def textWinBigH2(w)
+ w.highlightthickness 15
+end
+def textWinSmallH2(w)
+ w.highlightthickness $text_normal2['highlight']
+end
+def textWinBigP2(w)
+ w.configure(:padx=>15, :pady=>15)
+end
+def textWinSmallP2(w)
+ w.configure(:padx=>$text_normal2['pad'], :pady=>$text_normal2['pad'])
+end
+
+def textWindOn2 (w,f)
+ if defined? $twind2_scroll
+ begin
+ $twind2_scroll.destroy
+ rescue
+ end
+ $twind2_scroll = nil
+ end
+
+ base = TkWinfo.parent( TkWinfo.parent(w) )
+ $twind2_scroll = TkScrollbar.new(base) {|s|
+ orient 'horizontal'
+ command proc{|*args| w.xview(*args)}
+ w.xscrollcommand proc{|first,last| s.set first,last}
+ w.wrap 'none'
+ pack('after'=>f, 'side'=>'bottom', 'fill'=>'x')
+ }
+
+ return nil
+end
+
+def textWindOff2 (w)
+ if defined? $twind2_scroll
+ begin
+ $twind2_scroll.destroy
+ rescue
+ end
+ $twind2_scroll = nil
+ end
+ w.xscrollcommand ''
+ #w.wrap 'word'
+ w.wrap 'char'
+end
+
+def textWindPlot2 (t)
+ if (defined? $twind2_plot) && (TkWinfo.exist?($twind2_plot))
+ return
+ end
+
+ $twind2_plot = TkCanvas.new(t) {
+ relief 'sunken'
+ width 450
+ height 300
+ cursor 'top_left_arrow'
+ }
+
+ #font = '-Adobe-Helvetica-Medium-R-Normal--*-180-*-*-*-*-*-*'
+ font = 'Helvetica 18'
+
+ TkcLine.new($twind2_plot, 100, 250, 400, 250, 'width'=>2)
+ TkcLine.new($twind2_plot, 100, 250, 100, 50, 'width'=>2)
+ TkcText.new($twind2_plot, 225, 20,
+ 'text'=>"A Simple Plot", 'font'=>font, 'fill'=>'brown')
+
+ (0..10).each {|i|
+ x = 100 + (i * 30)
+ TkcLine.new($twind2_plot, x, 250, x, 245, 'width'=>2)
+ TkcText.new($twind2_plot, x, 254,
+ 'text'=>10*i, 'font'=>font, 'anchor'=>'n')
+ }
+ (0..5).each {|i|
+ y = 250 - (i * 40)
+ TkcLine.new($twind2_plot, 100, y, 105, y, 'width'=>2)
+ TkcText.new($twind2_plot, 96, y,
+ 'text'=>"#{i*50}.0", 'font'=>font, 'anchor'=>'e')
+ }
+
+ for xx, yy in [[12,56],[20,94],[33,98],[32,120],[61,180],[75,160],[98,223]]
+ x = 100 + (3*xx)
+ y = 250 - (4*yy)/5
+ item = TkcOval.new($twind2_plot, x-6, y-6, x+6, y+6,
+ 'width'=>1, 'outline'=>'black', 'fill'=>'SkyBlue2')
+ item.addtag 'point'
+ end
+
+ $twind2_plot.itembind('point', 'Any-Enter',
+ proc{$twind2_plot.itemconfigure 'current', 'fill', 'red'})
+ $twind2_plot.itembind('point', 'Any-Leave',
+ proc{$twind2_plot.itemconfigure 'current', 'fill', 'SkyBlue2'})
+ $twind2_plot.itembind('point', '1',
+ proc{|x,y| embPlotDown2 $twind2_plot,x,y}, "%x %y")
+ $twind2_plot.itembind('point', 'ButtonRelease-1',
+ proc{$twind2_plot.dtag 'selected'})
+ $twind2_plot.bind('B1-Motion',
+ proc{|x,y| embPlotMove2 $twind2_plot,x,y}, "%x %y")
+ while ($twind2_text.get($mark2_plot) =~ /[ \t\n]/)
+ $twind2_text.delete $mark2_plot
+ end
+ $twind2_text.insert $mark2_plot,"\n"
+ TkTextWindow.new($twind2_text, $mark2_plot, 'window'=>$twind2_plot)
+ $tag2_center.add $mark2_plot
+ $twind2_text.insert $mark2_plot,"\n"
+end
+
+$embPlot2 = {'lastX'=>0, 'lastY'=>0}
+
+def embPlotDown2 (w, x, y)
+ w.dtag 'selected'
+ w.addtag_withtag 'selected', 'current'
+ w.raise 'current'
+ $embPlot2['lastX'] = x
+ $embPlot2['lastY'] = y
+end
+
+def embPlotMove2 (w, x, y)
+ w.move 'selected', x - $embPlot2['lastX'], y - $embPlot2['lastY']
+ $embPlot2['lastX'] = x
+ $embPlot2['lastY'] = y
+end
+
+def textWindDel2 (w)
+ if (defined? $twind2_text) && TkWinfo.exist?($twind2_plot)
+ $twind2_text.delete $twind2_plot
+ $twind2_plot = nil
+ while ($twind2_text.get($mark2_plot) =~ /[ \t\n]/)
+ $twind2_text.delete $mark2_plot
+ end
+ $twind2_text.insert $mark2_plot," "
+ end
+end
+
+def embDefBg2 (w)
+ w['background'] = w.configinfo('background')[3]
+end
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 16:55:48 +0000