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2007-Apr-02 19:13 UTC

[Wxruby-development] [940] trunk/wxsugar/lib/wx_sugar/wx_classes/treectrl.rb: Align #traverse usage with #each in enumerable_controls.rb

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<title>[940] trunk/wxsugar/lib/wx_sugar/wx_classes/treectrl.rb: Align
#traverse usage with #each in enumerable_controls.rb</title>
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<div id="msg">
<dl>
<dt>Revision</dt> <dd>940</dd>
<dt>Author</dt> <dd>brokentoy</dd>
<dt>Date</dt> <dd>2007-04-02 15:13:44 -0400 (Mon, 02 Apr
2007)</dd>
</dl>

<h3>Log Message</h3>
<pre>Align #traverse usage with #each in
enumerable_controls.rb</pre>

<h3>Modified Paths</h3>
<ul>
<li><a
href="#trunkwxsugarlibwx_sugarwx_classestreectrlrb">trunk/wxsugar/lib/wx_sugar/wx_classes/treectrl.rb</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkwxsugarlibwx_sugarwx_classestreectrlrb"></a>
<div class="modfile"><h4>Modified:
trunk/wxsugar/lib/wx_sugar/wx_classes/treectrl.rb (939 => 940)</h4>
<pre class="diff"><span>
<span class="info">---
trunk/wxsugar/lib/wx_sugar/wx_classes/treectrl.rb&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp2007-04-02
18:55:19 UTC (rev 939)
+++
trunk/wxsugar/lib/wx_sugar/wx_classes/treectrl.rb&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp2007-04-02
19:13:44 UTC (rev 940)
</span><span class="lines">@@ -1,13 +1,34 @@
</span><span class="cx"> class Wx::TreeCtrl
</span><span class="cx">   # Recurses over the tree item
+start_item+ and its descendants,
</span><del>-  # yielding each Wx::TreeItemId in turn into the
passed block. This
-  # TreeItemId can be used as an argument to many other methods within
-  # TreeCtrl (for example, get_item_text).
</del><ins>+  # yielding each item in the tree in turn into the
block. If
+  # +start_item+ is not specified, this method will recurse over every
+  # item within the tree, starting with the root item.
</ins><span class="cx">   #
</span><del>-  # If +start_item+ is not specified, this method will
recurse over
-  # every item within the tree, starting with the root item.
</del><ins>+  # In its simplest form, the method accepts a block
with one parameter,
+  # which will be the TreeItemId of the item. This is an opaque integer
+  # value which uniquely identifies the tree item. It can be used as an
+  # argument to many other methods within TreeCtrl (for example,
+  # get_item_text).
+  #
+  # The block passed to +traverse+ may optionally receive two additional
+  # parameters, +text+ and +data+. If these are specified, they will be
+  # filled with the text label for the item and any ruby item data
+  # associated with the item, respectively.
</ins><span class="cx">   def traverse(start_item =
self.get_root_item, &block)
</span><del>-    block.call(start_item)
</del><ins>+    case block.arity
+    when 1
+      block.call(start_item)
+    when 2
+      block.call(start_item, 
+                 get_item_text(start_item))
+    when 3
+      block.call(start_item, 
+                 get_item_text(start_item), 
+                 get_item_data(start_item))
+    else
+      raise ArgumentError, "Invalid number of block parameters"
+    end
+
</ins><span class="cx">     if has_children(start_item)
</span><span class="cx">       child, cookie =
get_first_child(start_item)
</span><span class="cx">       while child.nonzero?
</span></span></pre>
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