diff options
author | nagai <nagai@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2003-07-31 20:52:40 +0000 |
---|---|---|
committer | nagai <nagai@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2003-07-31 20:52:40 +0000 |
commit | 75362fbd47cedf4b4906a361a6c54bc4ad8ea5ec (patch) | |
tree | 33e458bfb8dcf84face1eb34acede77b68ff5d8d /ext/tk/sample/demos-en/vscale.rb | |
parent | 0cdf0d99c1e5164c53676a39265ff99120c8a026 (diff) | |
download | ruby-75362fbd47cedf4b4906a361a6c54bc4ad8ea5ec.tar.gz |
* (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-en/vscale.rb')
-rw-r--r-- | ext/tk/sample/demos-en/vscale.rb | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/ext/tk/sample/demos-en/vscale.rb b/ext/tk/sample/demos-en/vscale.rb new file mode 100644 index 0000000000..636b85813b --- /dev/null +++ b/ext/tk/sample/demos-en/vscale.rb @@ -0,0 +1,78 @@ +# vscale.rb +# +# This demonstration script shows an example with a vertical scale. + +require "tkcanvas" + +if defined?($vscale_demo) && $vscale_demo + $vscale_demo.destroy + $vscale_demo = nil +end + +$vscale_demo = TkToplevel.new {|w| + title("Vertical Scale Demonstration") + iconname("vscale") +} +positionWindow($vscale_demo) + +msg = TkLabel.new($vscale_demo) { + font $font + wraplength '3.5i' + justify 'left' + text "An arrow and a vertical scale are displayed below. If you click or drag mouse button 1 in the scale, you can change the size of the arrow." +} +msg.pack('side'=>'top', 'padx'=>'.5c') + +TkFrame.new($vscale_demo) {|frame| + TkButton.new(frame) { + text 'Dismiss' + command proc { + tmppath = $vscale_demo + $vscale_demo = nil + tmppath.destroy + } + }.pack('side'=>'left', 'expand'=>'yes') + + TkButton.new(frame) { + text 'Show Code' + command proc { showCode 'vscale' } + }.pack('side'=>'left', 'expand'=>'yes') +}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m') + +TkFrame.new($vscale_demo) {|frame| + borderwidth 10 + canvas = TkCanvas.new(frame) {|c| + width 50 + height 50 + bd 0 + highlightthickness 0 + TkcPolygon.new(c, 0, 0, 1, 1, 2, 2) { + fill 'SeaGreen3' + tags 'poly' + } + TkcLine.new(c, 0, 0, 1, 1, 2, 2, 0, 0) { + fill 'black' + tags 'line' + } + }.pack('side'=>'left', 'anchor'=>'nw', 'fill'=>'y') + scale = TkScale.new(frame) { + orient 'vertical' + length 284 + from 0 + to 250 + command proc{|value| setHeight(canvas, value)} + tickinterval 50 + }.pack('side'=>'left', 'anchor'=>'ne') + scale.set 75 +}.pack + + +def setHeight(w, height) + height = height + 21 + y2 = height - 30 + if y2 < 21 + y2 = 21 + end + w.coords 'poly',15,20,35,20,35,y2,45,y2,25,height,5,y2,15,y2,15,20 + w.coords 'line',15,20,35,20,35,y2,45,y2,25,height,5,y2,15,y2,15,20 +end |