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Diffstat (limited to 'ruby_1_8_6/ext/tk/sample/demos-en/twind.rb')
| -rw-r--r-- | ruby_1_8_6/ext/tk/sample/demos-en/twind.rb | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/ruby_1_8_6/ext/tk/sample/demos-en/twind.rb b/ruby_1_8_6/ext/tk/sample/demos-en/twind.rb new file mode 100644 index 0000000000..24a4bcf706 --- /dev/null +++ b/ruby_1_8_6/ext/tk/sample/demos-en/twind.rb @@ -0,0 +1,285 @@ +# twind.rb +# +# This demonstration script creates a text widget with a bunch of +# embedded windows. +# +# text (embedded windows) widget demo (called by 'widget') +# + +# toplevel widget +if defined?($twind_demo) && $twind_demo + $twind_demo.destroy + $twind_demo = nil +end + +# demo toplevel widget +$twind_demo = TkToplevel.new {|w| + title("Text Demonstration - Embedded Windows") + iconname("Embedded Windows") + positionWindow(w) +} + +# frame +$twind_buttons = TkFrame.new($twind_demo) {|frame| + TkButton.new(frame) { + text 'Dismiss' + command proc{ + tmppath = $twind_demo + $twind_demo = nil + tmppath.destroy + } + }.pack('side'=>'left', 'expand'=>'yes') + + TkButton.new(frame) { + text 'Show Code' + command proc{showCode 'twind'} + }.pack('side'=>'left', 'expand'=>'yes') +} +$twind_buttons.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m') + +# frame +$twind_text = nil +TkFrame.new($twind_demo, 'highlightthickness'=>2, 'borderwidth'=>2, + 'relief'=>'sunken') {|f| + $twind_text = TkText.new(f, 'setgrid'=>'true', 'font'=>$font, + 'width'=>'70', 'height'=>35, 'wrap'=>'word', + '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') + +# +$tag_center = TkTextTag.new($twind_text, + 'justify' =>'center', + 'spacing1'=>'5m', + 'spacing3'=>'5m' ) +$tag_buttons = TkTextTag.new($twind_text, + 'lmargin1'=>'1c', + 'lmargin2'=>'1c', + 'rmargin' =>'1c', + 'spacing1'=>'3m', + 'spacing2'=>0, + 'spacing3'=>0 ) + +$twind_text.insert('end', "A text widget can contain other widgets embedded ") +$twind_text.insert('end', "it. These are called \"embedded windows\", ") +$twind_text.insert('end', "and they can consist of arbitrary widgets. ") +$twind_text.insert('end', "For example, here are two embedded button ") +$twind_text.insert('end', "widgets. You can click on the first button to ") +TkTextWindow.new($twind_text, 'end', + 'window'=>TkButton.new($twind_text) { + #text 'ON' + text 'Turn On' + command proc{textWindOn $twind_text,$twind_buttons} + cursor 'top_left_arrow' + }) +$twind_text.insert('end', " horizontal scrolling, which also turns off ") +$twind_text.insert('end', "word wrapping. Or, you can click on the second ") +$twind_text.insert('end', "button to\n") +TkTextWindow.new($twind_text, 'end', + 'window'=>TkButton.new($twind_text) { + #text 'OFF' + text 'Turn Off' + command proc{textWindOff $twind_text} + cursor 'top_left_arrow' + }) + +$twind_text.insert('end', " horizontal scrolling and turn back on word wrapping.\n\n") +$twind_text.insert('end', "Or, here is another example. If you ") +TkTextWindow.new($twind_text, 'end', + 'window'=>TkButton.new($twind_text) { + text 'Click Here' + command proc{textWindPlot $twind_text} + cursor 'top_left_arrow' + }) +$twind_text.insert('end', " a canvas displaying an x-y plot will appear right here.") +$mark_plot = TkTextMark.new($twind_text, 'insert') +$mark_plot.gravity='left' +$twind_text.insert('end', " You can drag the data points around with the mouse, ") +$twind_text.insert('end', "or you can click here to ") +TkTextWindow.new($twind_text, 'end', + 'window'=>TkButton.new($twind_text) { + text 'Delete' + command proc{textWindDel $twind_text} + cursor 'top_left_arrow' + }) + +$twind_text.insert('end', " the plot again.\n\n") +$twind_text.insert('end', "You may also find it useful to put embedded windows in ") +$twind_text.insert('end', "a text without any actual text. In this case the ") +$twind_text.insert('end', "text widget acts like a geometry manager. For ") +$twind_text.insert('end', "example, here is a collection of buttons laid out ") +$twind_text.insert('end', "neatly into rows by the text widget. These buttons ") +$twind_text.insert('end', "can be used to change the background color of the ") +$twind_text.insert('end', "text widget (\"Default\" restores the color to ") +$twind_text.insert('end', "its default). If you click on the button labeled ") +$twind_text.insert('end', "\"Short\", it changes to a longer string so that ") +$twind_text.insert('end', "you can see how the text widget automatically ") +$twind_text.insert('end', "changes the layout. Click on the button again ") +$twind_text.insert('end', "to restore the short string.\n") + + +TkTextWindow.new($twind_text, 'end', + 'window'=>TkButton.new($twind_text) {|b| + text 'Default' + command proc{embDefBg $twind_text} + cursor 'top_left_arrow' + $tag_buttons.add('end') + }, + 'padx'=>3 ) +embToggle = TkVariable.new('Short') +TkTextWindow.new($twind_text, 'end', + 'window'=>TkCheckButton.new($twind_text) { + textvariable embToggle + indicatoron 0 + variable embToggle + onvalue 'A much longer string' + offvalue 'Short' + cursor 'top_left_arrow' + pady 5 + padx 2 + }, + 'padx'=>3, + 'pady'=>2 ) + +[ 'AntiqueWhite3', 'Bisque1', 'Bisque2', 'Bisque3', 'Bisque4', + 'SlateBlue3', 'RoyalBlue1', 'SteelBlue2', 'DeepSkyBlue3', 'LightBlue1', + 'DarkSlateGray1', 'Aquamarine2', 'DarkSeaGreen2', 'SeaGreen1', + 'Yellow1', 'IndianRed1', 'IndianRed2', 'Tan1', 'Tan4' +].each{|twind_color| + TkTextWindow.new($twind_text, 'end', + 'window'=>TkButton.new($twind_text) { + text twind_color + cursor 'top_left_arrow' + command proc{$twind_text.bg twind_color} + }, + 'padx'=>3, + 'pady'=>2 ) +} + +# +def textWindOn (w,f) + if defined? $twind_scroll + begin + $twind_scroll.destroy + rescue + end + $twind_scroll = nil + end + + base = TkWinfo.parent( TkWinfo.parent(w) ) + $twind_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 textWindOff (w) + if defined? $twind_scroll + begin + $twind_scroll.destroy + rescue + end + $twind_scroll = nil + end + w.xscrollcommand '' + w.wrap 'word' +end + +def textWindPlot (t) + if (defined? $twind_plot) && TkWinfo.exist?($twind_plot) + return + end + + $twind_plot = TkCanvas.new(t) { + relief 'sunken' + width 450 + height 300 + cursor 'top_left_arrow' + } + + font = '-Adobe-Helvetica-Medium-R-Normal--*-180-*-*-*-*-*-*' + + TkcLine.new($twind_plot, 100, 250, 400, 250, 'width'=>2) + TkcLine.new($twind_plot, 100, 250, 100, 50, 'width'=>2) + TkcText.new($twind_plot, 225, 20, + 'text'=>"A Simple Plot", 'font'=>font, 'fill'=>'brown') + + (0..10).each {|i| + x = 100 + (i * 30) + TkcLine.new($twind_plot, x, 250, x, 245, 'width'=>2) + TkcText.new($twind_plot, x, 254, + 'text'=>10*i, 'font'=>font, 'anchor'=>'n') + } + (0..5).each {|i| + y = 250 - (i * 40) + TkcLine.new($twind_plot, 100, y, 105, y, 'width'=>2) + TkcText.new($twind_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($twind_plot, x-6, y-6, x+6, y+6, + 'width'=>1, 'outline'=>'black', 'fill'=>'SkyBlue2') + item.addtag 'point' + end + + $twind_plot.itembind('point', 'Any-Enter', + proc{$twind_plot.itemconfigure 'current', 'fill', 'red'}) + $twind_plot.itembind('point', 'Any-Leave', + proc{$twind_plot.itemconfigure 'current', 'fill', 'SkyBlue2'}) + $twind_plot.itembind('point', '1', + proc{|x,y| embPlotDown $twind_plot,x,y}, "%x %y") + $twind_plot.itembind('point', 'ButtonRelease-1', + proc{$twind_plot.dtag 'selected'}) + $twind_plot.bind('B1-Motion', + proc{|x,y| embPlotMove $twind_plot,x,y}, "%x %y") + while ($twind_text.get($mark_plot) =~ /[ \t\n]/) + $twind_text.delete $mark_plot + end + $twind_text.insert $mark_plot,"\n" + TkTextWindow.new($twind_text, $mark_plot, 'window'=>$twind_plot) + $tag_center.add $mark_plot + $twind_text.insert $mark_plot,"\n" +end + +$embPlot = {'lastX'=>0, 'lastY'=>0} + +def embPlotDown (w, x, y) + w.dtag 'selected' + w.addtag_withtag 'selected', 'current' + w.raise 'current' + $embPlot['lastX'] = x + $embPlot['lastY'] = y +end + +def embPlotMove (w, x, y) + w.move 'selected', x - $embPlot['lastX'], y - $embPlot['lastY'] + $embPlot['lastX'] = x + $embPlot['lastY'] = y +end + +def textWindDel (w) + if (defined? $twind_text) && TkWinfo.exist?($twind_plot) + $twind_text.delete $twind_plot + $twind_plot = nil + while ($twind_text.get($mark_plot) =~ /[ \t\n]/) + $twind_text.delete $mark_plot + end + $twind_text.insert $mark_plot," " + end +end + +def embDefBg (w) + w['background'] = w.configinfo('background')[3] +end |