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-jp/cscroll.rb | 134 +++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 jni/ruby/ext/tk/sample/demos-jp/cscroll.rb

(limited to 'jni/ruby/ext/tk/sample/demos-jp/cscroll.rb')

diff --git a/jni/ruby/ext/tk/sample/demos-jp/cscroll.rb b/jni/ruby/ext/tk/sample/demos-jp/cscroll.rb
new file mode 100644
index 0000000..e993326
--- /dev/null
+++ b/jni/ruby/ext/tk/sample/demos-jp/cscroll.rb
@@ -0,0 +1,134 @@
+# -*- coding: utf-8 -*-
+#
+# simple scrollable canvas widget demo (called by 'widget')
+#
+
+# toplevel widget が存在すれば削除する
+if defined?($cscroll_demo) && $cscroll_demo
+  $cscroll_demo.destroy
+  $cscroll_demo = nil
+end
+
+# demo 用の toplevel widget を生成
+$cscroll_demo = TkToplevel.new {|w|
+  title("Scrollable Canvas Demonstration")
+  iconname("cscroll")
+  positionWindow(w)
+}
+
+base_frame = TkFrame.new($cscroll_demo).pack(:fill=>:both, :expand=>true)
+
+# label 生成
+TkLabel.new(base_frame, 'font'=>$font, 'wraplength'=>'4i',
+            'justify'=>'left', 'text'=>"このウィンドウにはスクロールバーやマウスのボタン2 でスクロールできるキャンバス widget が表示されています。四角の上でボタン1 をクリックすると、そのインデックスが標準出力に出力されます。"){
+  pack('side'=>'top')
+}
+
+# frame 生成
+$cscroll_buttons = TkFrame.new(base_frame) {|frame|
+  TkButton.new(frame) {
+    #text '了解'
+    text '閉じる'
+    command proc{
+      tmppath = $cscroll_demo
+      $cscroll_demo = nil
+      tmppath.destroy
+    }
+  }.pack('side'=>'left', 'expand'=>'yes')
+
+  TkButton.new(frame) {
+    text 'コード参照'
+    command proc{showCode 'cscroll'}
+  }.pack('side'=>'left', 'expand'=>'yes')
+}
+$cscroll_buttons.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
+
+# frame 設定
+unless $tk_version =~ /^4\.[01]/
+  $cscroll_grid = TkFrame.new(base_frame) {
+    pack('expand'=>'yes', 'fill'=>'both', 'padx'=>1, 'pady'=>1)
+  }
+  TkGrid.rowconfigure($cscroll_grid, 0, 'weight'=>1, 'minsize'=>0)
+  TkGrid.columnconfigure($cscroll_grid, 0, 'weight'=>1, 'minsize'=>0)
+end
+
+# canvas 設定
+$cscroll_canvas = TkCanvas.new(base_frame,
+                               'relief'=>'sunken', 'borderwidth'=>2,
+                               'scrollregion'=>['-11c', '-11c', '50c', '20c']
+                               ) {|c|
+  if $tk_version =~ /^4\.[01]/
+    pack('expand'=>'yes', 'fill'=>'both')
+  else
+    grid('in'=>$cscroll_grid, 'padx'=>1, 'pady'=>1, 'row'=>0, 'column'=>0,
+         'rowspan'=>1, 'columnspan'=>1, 'sticky'=>'news')
+  end
+
+  TkScrollbar.new(base_frame, 'command'=>proc{|*args| c.yview(*args)}) {|vs|
+    c.yscrollcommand(proc{|first,last| vs.set first,last})
+    if $tk_version =~ /^4\.[01]/
+      pack('side'=>'right', 'fill'=>'y')
+    else
+      grid('in'=>$cscroll_grid, 'padx'=>1, 'pady'=>1, 'row'=>0, 'column'=>1,
+           'rowspan'=>1, 'columnspan'=>1, 'sticky'=>'news')
+    end
+  }
+
+  TkScrollbar.new(base_frame, 'orient'=>'horiz',
+                  'command'=>proc{|*args| c.xview(*args)}) {|hs|
+    c.xscrollcommand(proc{|first,last| hs.set first,last})
+    if $tk_version =~ /^4\.[01]/
+      pack('side'=>'bottom', 'fill'=>'x')
+    else
+      grid('in'=>$cscroll_grid, 'padx'=>1, 'pady'=>1, 'row'=>1, 'column'=>0,
+           'rowspan'=>1, 'columnspan'=>1, 'sticky'=>'news')
+    end
+  }
+}
+
+bg = $cscroll_canvas.configinfo('bg')[4]
+(0..19).each{|i|
+  x = -10+3*i
+  y = -10
+  (0..9).each{|j|
+    TkcRectangle.new($cscroll_canvas, "#{x}c", "#{y}c", "#{x+2}c", "#{y+2}c",
+                     'outline'=>'black', 'fill'=>bg, 'tags'=>'rect')
+    TkcText.new($cscroll_canvas, "#{x+1}c", "#{y+1}c",
+                'text'=>"#{i},#{j}", 'anchor'=>'center', 'tags'=>'text')
+    y += 3
+  }
+}
+
+$cscroll_canvas.itembind('all', 'Any-Enter', proc{scrollEnter $cscroll_canvas})
+$cscroll_canvas.itembind('all', 'Any-Leave', proc{scrollLeave $cscroll_canvas})
+$cscroll_canvas.itembind('all', '1', proc{scrollButton $cscroll_canvas})
+$cscroll_canvas.itembind('all', 'Any-Enter', proc{scrollEnter $cscroll_canvas})
+$cscroll_canvas.bind('2', proc{|x,y| $cscroll_canvas.scan_mark(x,y)}, '%x %y')
+$cscroll_canvas.bind('B2-Motion',
+                     proc{|x,y| $cscroll_canvas.scan_dragto(x,y)}, '%x %y')
+
+def scrollEnter(c)
+  id = c.find_withtag('current')[0].id
+  id -= 1 if c.gettags('current').include?('text')
+  $oldFill = c.itemconfiginfo(id, 'fill')[4]
+  if TkWinfo.depth(c) > 1
+    c.itemconfigure(id, 'fill'=>'SeaGreen1')
+  else
+    c.itemconfigure(id, 'fill'=>'black')
+    c.itemconfigure(id+1, 'fill'=>'white')
+  end
+end
+
+def scrollLeave(c)
+  id = c.find_withtag('current')[0].id
+  id -= 1 if c.gettags('current').include?('text')
+  c.itemconfigure(id, 'fill'=>$oldFill)
+  c.itemconfigure(id+1, 'fill'=>'black')
+end
+
+def scrollButton(c)
+  id = c.find_withtag('current')[0].id
+  id += 1 unless c.gettags('current').include?('text')
+  print "You buttoned at #{c.itemconfiginfo(id,'text')[4]}\n"
+end
+
-- 
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