From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <jari.vetoniemi@indooratlas.com>
Date: Mon, 16 Mar 2020 18:49:26 +0900
Subject: Fresh start

---
 jni/ruby/ext/tk/sample/demos-en/vscale.rb | 79 +++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 jni/ruby/ext/tk/sample/demos-en/vscale.rb

(limited to 'jni/ruby/ext/tk/sample/demos-en/vscale.rb')

diff --git a/jni/ruby/ext/tk/sample/demos-en/vscale.rb b/jni/ruby/ext/tk/sample/demos-en/vscale.rb
new file mode 100644
index 0000000..b05ed12
--- /dev/null
+++ b/jni/ruby/ext/tk/sample/demos-en/vscale.rb
@@ -0,0 +1,79 @@
+# 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($vscale_demo)
+
+base_frame = TkFrame.new($vscale_demo).pack(:fill=>:both, :expand=>true)
+
+msg = TkLabel.new(base_frame) {
+  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(base_frame) {|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')
+
+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
+
+TkFrame.new(base_frame) {|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
-- 
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