diff options
author | nagai <nagai@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2003-07-31 20:52:40 +0000 |
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committer | nagai <nagai@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2003-07-31 20:52:40 +0000 |
commit | 75362fbd47cedf4b4906a361a6c54bc4ad8ea5ec (patch) | |
tree | 33e458bfb8dcf84face1eb34acede77b68ff5d8d /ext/tk/sample/demos-jp/plot.rb | |
parent | 0cdf0d99c1e5164c53676a39265ff99120c8a026 (diff) |
* (IMPORTANT BUG FIX) scan of event keywords doesn't work on recent
versions of Tck/Tk
* (bug fix) initialize error of instance variable on TkComposite
* (bug fix) initialize error on encoding-system on MultiTkIp
* (bug fix) trouble on destroying widgets
* (new) add JP and EN version of Ruby/Tk widget demos
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4249 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/tk/sample/demos-jp/plot.rb')
-rw-r--r-- | ext/tk/sample/demos-jp/plot.rb | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/ext/tk/sample/demos-jp/plot.rb b/ext/tk/sample/demos-jp/plot.rb new file mode 100644 index 0000000000..464dd4441d --- /dev/null +++ b/ext/tk/sample/demos-jp/plot.rb @@ -0,0 +1,118 @@ +# +# 2-D plot widget demo (called by 'widget') +# + +# toplevel widget が存在すれば削除する +if defined?($plot_demo) && $plot_demo + $plot_demo.destroy + $plot_demo = nil +end + +# demo 用の toplevel widget を生成 +$plot_demo = TkToplevel.new {|w| + title("Plot Demonstration") + iconname("Plot") + positionWindow(w) +} + +# label 生成 +TkLabel.new($plot_demo, 'font'=>$font, 'wraplength'=>'4i', 'justify'=>'left', + 'text'=>"このウィンドウは簡単な2次元のプロットを含んだキャンバス widgetです。表示された点をマウスボタン1でドラッグしてデータをいじることができます。"){ + pack('side'=>'top') +} + +# frame 生成 +$plot_buttons = TkFrame.new($plot_demo) {|frame| + TkButton.new(frame) { + text '了解' + command proc{ + tmppath = $plot_demo + $plot_demo = nil + tmppath.destroy + } + }.pack('side'=>'left', 'expand'=>'yes') + + TkButton.new(frame) { + text 'コード参照' + command proc{showCode 'plot'} + }.pack('side'=>'left', 'expand'=>'yes') +} +$plot_buttons.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m') + +# font 設定 +plotFont = '-*-Helvetica-Medium-R-Normal--*-180-*-*-*-*-*-*' + +# canvas 設定 +$plot_canvas = TkCanvas.new($plot_demo,'relief'=>'raised','width'=>450,'height'=>300) +$plot_canvas.pack('side'=>'top', 'fill'=>'x') + +# plot 生成 +TkcLine.new($plot_canvas, 100, 250, 400, 250, 'width'=>2) +TkcLine.new($plot_canvas, 100, 250, 100, 50, 'width'=>2) +TkcText.new($plot_canvas, 225, 20, + 'text'=>"簡単なプロット", 'font'=>plotFont, 'fill'=>'brown') + +(0..10).each {|i| + x = 100 + (i * 30) + TkcLine.new($plot_canvas, x, 250, x, 245, 'width'=>2) + TkcText.new($plot_canvas, x, 254, + 'text'=>10*i, 'font'=>plotFont, 'anchor'=>'n') +} +(0..5).each {|i| + y = 250 - (i * 40) + TkcLine.new($plot_canvas, 100, y, 105, y, 'width'=>2) + TkcText.new($plot_canvas, 96, y, + 'text'=>"#{i*50}.0", 'font'=>plotFont, '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($plot_canvas, x-6, y-6, x+6, y+6, + 'width'=>1, 'outline'=>'black', 'fill'=>'SkyBlue2') + item.addtag 'point' +end + +$plot_canvas.itembind('point', 'Any-Enter', + proc{$plot_canvas.itemconfigure 'current','fill','red'}) +$plot_canvas.itembind('point', 'Any-Leave', + proc{$plot_canvas.itemconfigure 'current','fill','SkyBlue2'}) +$plot_canvas.itembind('point', '1', + proc{|x,y| plotDown $plot_canvas,x,y}, "%x %y") +$plot_canvas.itembind('point', 'ButtonRelease-1', + proc{$plot_canvas.dtag 'selected'}) +$plot_canvas.bind('B1-Motion', + proc{|x,y| plotMove $plot_canvas,x,y}, "%x %y") + +$plot = {'lastX'=>0, 'lastY'=>0} + +# plotDown -- +# This method is invoked when the mouse is pressed over one of the +# data points. It sets up state to allow the point to be dragged. +# +# Arguments: +# w - The canvas window. +# x, y - The coordinates of the mouse press. + +def plotDown (w, x, y) + w.dtag 'selected' + w.addtag_withtag 'selected', 'current' + w.raise 'current' + $plot['lastX'] = x + $plot['lastY'] = y +end + +# plotMove -- +# This method is invoked during mouse motion events. It drags the +# current item. +# +# Arguments: +# w - The canvas window. +# x, y - The coordinates of the mouse. + +def plotMove (w, x, y) + w.move 'selected', x - $plot['lastX'], y - $plot['lastY'] + $plot['lastX'] = x + $plot['lastY'] = y +end + |