From 1a74fa4b04da04bd2bb33103dd3cf431438df38e Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 14 Dec 2017 15:09:35 +0000
Subject: add tag v2_2_9

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v2_2_9@61257 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ruby_2_2/ext/tk/sample/demos-en/puzzle.rb | 134 ++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 ruby_2_2/ext/tk/sample/demos-en/puzzle.rb

(limited to 'ruby_2_2/ext/tk/sample/demos-en/puzzle.rb')

diff --git a/ruby_2_2/ext/tk/sample/demos-en/puzzle.rb b/ruby_2_2/ext/tk/sample/demos-en/puzzle.rb
new file mode 100644
index 0000000000..f16414aa4c
--- /dev/null
+++ b/ruby_2_2/ext/tk/sample/demos-en/puzzle.rb
@@ -0,0 +1,134 @@
+# puzzle.rb
+#
+# This demonstration script creates a 15-puzzle game using a collection
+# of buttons.
+#
+# widet demo 'puzzle' (called by 'widget')
+#
+
+# toplevel widget
+if defined?($puzzle_demo) && $puzzle_demo
+  $puzzle_demo.destroy
+  $puzzle_demo = nil
+end
+
+# demo toplevel widget
+$puzzle_demo = TkToplevel.new {|w|
+  title("15-Puzzle Demonstration")
+  iconname("15-Puzzle")
+  positionWindow(w)
+}
+
+base_frame = TkFrame.new($puzzle_demo).pack(:fill=>:both, :expand=>true)
+
+# label
+msg = TkLabel.new(base_frame) {
+  font $font
+  wraplength '4i'
+  justify 'left'
+  text "A 15-puzzle appears below as a collection of buttons.  Click on any of the pieces next to the space, and that piece will slide over the space.  Continue this until the pieces are arranged in numerical order from upper-left to lower-right."
+}
+msg.pack('side'=>'top')
+
+# frame
+TkFrame.new(base_frame) {|frame|
+  TkButton.new(frame) {
+    text 'Dismiss'
+    command proc{
+      tmppath = $puzzle_demo
+      $puzzle_demo = nil
+      tmppath.destroy
+    }
+  }.pack('side'=>'left', 'expand'=>'yes')
+
+  TkButton.new(frame) {
+    text 'Show Code'
+    command proc{showCode 'puzzle'}
+  }.pack('side'=>'left', 'expand'=>'yes')
+
+}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
+
+# frame
+
+# Special trick: select a darker color for the space by creating a
+# scrollbar widget and using its trough color.
+begin
+  if Tk.windowingsystem() == 'aqua'
+    frameWidth  = 168
+    frameHeight = 168
+  elsif Tk.default_widget_set == :Ttk
+    frameWidth  = 148
+    frameHeight = 124
+  else
+    frameWidth  = 120
+    frameHeight = 120
+  end
+rescue
+  frameWidth  = 120
+  frameHeight = 120
+end
+
+# depend_on_button_width = true
+depend_on_button_width = false
+
+s = TkScrollbar.new(base_frame)
+base = TkFrame.new(base_frame) {
+  width  frameWidth
+  height frameHeight
+  borderwidth 2
+  relief 'sunken'
+  bg s['troughcolor']
+}
+s.destroy
+base.pack('side'=>'top', 'padx'=>'1c', 'pady'=>'1c')
+
+def def_puzzleswitch_proc(w, num)
+  proc{puzzleSwitch w, num}
+end
+
+$xpos = {}
+$ypos = {}
+order = [3,1,6,2,5,7,15,13,4,11,8,9,14,10,12]
+(0..14).each{|i|
+  num = order[i]
+  $xpos[num] = (i % 4) * 0.25
+  $ypos[num] = (i / 4) * 0.25
+  TkButton.new(base) {|w|
+    relief 'raised'
+    text num
+    highlightthickness 0
+    command def_puzzleswitch_proc(w, num)
+    if depend_on_button_width && (w.winfo_reqwidth * 4 > base.width)
+      base.width = w.winfo_reqwidth * 4
+    end
+  }.place('relx'=>$xpos[num], 'rely'=>$ypos[num],
+          'relwidth'=>0.25, 'relheight'=>0.25)
+}
+$xpos['space'] = 0.75
+$ypos['space'] = 0.75
+
+
+# puzzleSwitch --
+# This procedure is invoked when the user clicks on a particular button;
+# if the button is next to the empty space, it moves the button into the
+# empty space.
+
+def puzzleSwitch(w, num)
+  if ( ($ypos[num] >= ($ypos['space'] - 0.01))     \
+      && ($ypos[num] <= ($ypos['space'] + 0.01))   \
+      && ($xpos[num] >= ($xpos['space'] - 0.26))   \
+      && ($xpos[num] <= ($xpos['space'] + 0.26)))  \
+    || (($xpos[num] >= ($xpos['space'] - 0.01))    \
+        && ($xpos[num] <= ($xpos['space'] + 0.01)) \
+        && ($ypos[num] >= ($ypos['space'] - 0.26)) \
+        && ($ypos[num] <= ($ypos['space'] + 0.26)))
+    tmp = $xpos['space']
+    $xpos['space'] = $xpos[num]
+    $xpos[num] = tmp
+    tmp = $ypos['space']
+    $ypos['space'] = $ypos[num]
+    $ypos[num] = tmp
+    w.place('relx'=>$xpos[num], 'rely'=>$ypos[num])
+  end
+end
+
-- 
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