From 75362fbd47cedf4b4906a361a6c54bc4ad8ea5ec Mon Sep 17 00:00:00 2001
From: nagai <nagai@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 31 Jul 2003 20:52:40 +0000
Subject: * (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
---
 ext/tk/sample/demos-en/text.rb | 102 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 ext/tk/sample/demos-en/text.rb

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

diff --git a/ext/tk/sample/demos-en/text.rb b/ext/tk/sample/demos-en/text.rb
new file mode 100644
index 0000000000..1dcaad1cf9
--- /dev/null
+++ b/ext/tk/sample/demos-en/text.rb
@@ -0,0 +1,102 @@
+# text.rb
+#
+# This demonstration script creates a text widget that describes
+# the basic editing functions.
+#
+# text (basic facilities) widget demo (called by 'widget')
+#
+
+# toplevel widget
+if defined?($text_demo) && $text_demo
+  $text_demo.destroy 
+  $text_demo = nil
+end
+
+# demo toplevel widget
+$text_demo = TkToplevel.new {|w|
+  title("Text Demonstration - Basic Facilities")
+  iconname("text")
+  positionWindow(w)
+}
+
+# frame
+TkFrame.new($text_demo) {|frame|
+  TkButton.new(frame) {
+    text 'Dismiss'
+    command proc{
+      tmppath = $text_demo
+      $text_demo = nil
+      tmppath.destroy
+    }
+  }.pack('side'=>'left', 'expand'=>'yes')
+
+  TkButton.new(frame) {
+    text 'Show Code'
+    command proc{showCode 'text'}
+  }.pack('side'=>'left', 'expand'=>'yes')
+}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
+
+# text À¸À®
+TkText.new($text_demo){|t|
+  # À¸À®
+  relief 'sunken'
+  bd 2
+  setgrid 1
+  height 30
+  TkScrollbar.new($text_demo) {|s|
+    pack('side'=>'right', 'fill'=>'y')
+    command proc{|*args| t.yview(*args)}
+    t.yscrollcommand proc{|first,last| s.set first,last}
+  }
+  pack('expand'=>'yes', 'fill'=>'both')
+
+  # 
+  insert('0.0', %q|This window is a text widget.  It displays one or more lines of text
+and allows you to edit the text.  Here is a summary of the things you
+can do to a text widget:
+
+1. Scrolling. Use the scrollbar to adjust the view in the text window.
+
+2. Scanning. Press mouse button 2 in the text window and drag up or down.
+This will drag the text at high speed to allow you to scan its contents.
+
+3. Insert text. Press mouse button 1 to set the insertion cursor, then
+type text.  What you type will be added to the widget.
+
+4. Select. Press mouse button 1 and drag to select a range of characters.
+Once you've released the button, you can adjust the selection by pressing
+button 1 with the shift key down.  This will reset the end of the
+selection nearest the mouse cursor and you can drag that end of the
+selection by dragging the mouse before releasing the mouse button.
+You can double-click to select whole words or triple-click to select
+whole lines.
+
+5. Delete and replace. To delete text, select the characters you'd like
+to delete and type Backspace or Delete.  Alternatively, you can type new
+text, in which case it will replace the selected text.
+
+6. Copy the selection. To copy the selection into this window, select
+what you want to copy (either here or in another application), then
+click button 2 to copy the selection to the point of the mouse cursor.
+
+7. Edit.  Text widgets support the standard Motif editing characters
+plus many Emacs editing characters.  Backspace and Control-h erase the
+character to the left of the insertion cursor.  Delete and Control-d
+erase the character to the right of the insertion cursor.  Meta-backspace
+deletes the word to the left of the insertion cursor, and Meta-d deletes
+the word to the right of the insertion cursor.  Control-k deletes from
+the insertion cursor to the end of the line, or it deletes the newline
+character if that is the only thing left on the line.  Control-o opens
+a new line by inserting a newline character to the right of the insertion
+cursor.  Control-t transposes the two characters on either side of the
+insertion cursor.
+
+7. Resize the window.  This widget has been configured with the "setGrid"
+option on, so that if you resize the window it will always resize to an
+even number of characters high and wide.  Also, if you make the window
+narrow you can see that long lines automatically wrap around onto
+additional lines so that all the information is always visible.|)
+
+  set_insert('0.0')
+}
+
-- 
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