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/hscale.rb | 75 +++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 jni/ruby/ext/tk/sample/demos-en/hscale.rb

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

diff --git a/jni/ruby/ext/tk/sample/demos-en/hscale.rb b/jni/ruby/ext/tk/sample/demos-en/hscale.rb
new file mode 100644
index 0000000..e660216
--- /dev/null
+++ b/jni/ruby/ext/tk/sample/demos-en/hscale.rb
@@ -0,0 +1,75 @@
+require "tkcanvas"
+
+if defined?($hscale_demo) && $hscale_demo
+  $hscale_demo.destroy
+  $hscale_demo = nil
+end
+
+$hscale_demo = TkToplevel.new {|w|
+  title("Horizontal Scale Demonstration")
+  iconname("hscale")
+}
+positionWindow($hscale_demo)
+
+base_frame = TkFrame.new($hscale_demo).pack(:fill=>:both, :expand=>true)
+
+msg = TkLabel.new(base_frame) {
+  font $font
+  wraplength '3.5i'
+  justify 'left'
+  text "An arrow and a horizontal scale are displayed below.  If you click or drag mouse button 1 in the scale, you can change the length of the arrow."
+}
+msg.pack('side'=>'top')
+
+TkFrame.new(base_frame) {|frame|
+  TkButton.new(frame) {
+    text 'Dismiss'
+    command proc {
+      tmppath = $hscale_demo
+      $hscale_demo = nil
+      tmppath.destroy
+    }
+  }.pack('side'=>'left', 'expand'=>'yes')
+
+  TkButton.new(frame) {
+    text 'Show Code'
+    command proc { showCode 'hscale' }
+  }.pack('side'=>'left', 'expand'=>'yes')
+}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
+
+
+def setWidth(w, width)
+  width = width + 21
+  x2 = width - 30
+  if x2 < 21
+    x2 = 21
+  end
+  w.coords 'poly',20,15,20,35,x2,35,x2,45,width,25,x2,5,x2,15,20,15
+  w.coords 'line',20,15,20,35,x2,35,x2,45,width,25,x2,5,x2,15,20,15
+end
+
+TkFrame.new(base_frame) {|frame|
+  canvas = TkCanvas.new(frame) {|c|
+    width 50
+    height 50
+    bd 0
+    highlightthickness 0
+    TkcPolygon.new(c, '0', '0', '1', '1', '2', '2') {
+      fill 'DeepSkyBlue'
+      tags 'poly'
+    }
+    TkcLine.new(c, '0', '0', '1', '1', '2', '2', '0', '0') {
+      fill 'black'
+      tags 'line'
+    }
+  }.pack('side'=>'top', 'expand'=>'yes', 'anchor'=>'s', 'fill'=>'x', 'padx'=>'15')
+  scale = TkScale.new(frame) {
+    orient 'horizontal'
+    length 284
+    from 0
+    to 250
+    command proc{|value| setWidth(canvas, value)}
+    tickinterval 50
+  }.pack('side'=>'bottom', 'expand'=>'yes', 'anchor'=>'n')
+  scale.set 75
+}.pack('side'=>'top', 'fill'=>'x')
-- 
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