search for: get_first_child

...an respond by visiting: http://rubyforge.org/tracker/?func=detail&atid=218&aid=13734&group_id=35 Category: Incorrect behavior Group: None Status: Open Resolution: None Priority: 4 Submitted By: Alex Fenton (brokentoy) Assigned to: Alex Fenton (brokentoy) Summary: Problem with TreeCtrl#get_first_child and #get_next_child on MSW Initial Comment: On Windows, the "cookie" value does not seem to be getting returned correctly when looping over children in TreeCtrl. It is always returned as 0 - this can be seen in the treectrl.rb sample. This also causes assertion failures in debug mode....

...ploading the whole files instead of the diffs. traverse_tree(tree_ctrl,tree_ctrl.get_root_item) do |node_id,cookie| puts "Name: #{tree_ctrl.get_item_text(node_id)}\t\tCookie: #{cookie}" end def traverse_tree(tree_ctrl,root_node,cookie=0,&block) if cookie == 0 ret = tree_ctrl.get_first_child(root_node) else ret = tree_ctrl.get_next_child(root_node,cookie) end if ret[0].is_ok if block_given? yield(ret[0],ret[1]) end traverse_tree(tree_ctrl,ret[0],0,&block) end ret_sib = tree_ctrl.get_next_sibling(root_node) if ret_sib.is_ok if block_given?...

...(rev 842) </span><span class="lines">@@ -10,7 +10,7 @@ </span><span class="cx"> block.call(start_item) </span><span class="cx"> if has_children(start_item) </span><span class="cx"> child, cookie = get_first_child(start_item) </span><del>- while child.is_ok </del><ins>+ while child.nonzero? </ins><span class="cx"> traverse(child, &block) </span><span class="cx"> child = get_next_sibling(child) </span><s...

...to create a custom Wx::App subclass, you can run an app like this: Wx::App.run do f = Frame.new(nil, :title => ''WxRuby demo'') f.show end This will create an App, show a Window and start the main loop, all in four lines of code. == INCOMPATIBLE API CHANGES == TreeCtrl#get_first_child now only returns a single value, the tree id of the relevant first child. Use #get_next_sibling to loop over a group of child tree nodes, or use the convenience method #get_children. == KNOWN ISSUES == At a late stage a minor regression has shown up. Some methods which may return a Wx::Window...

...e, get_item_text). + # + # If +start_item+ is not specified, this method will recurse over + # every item within the tree, starting with the root item. + def traverse(start_item = self.get_root_item, &block) + block.call(start_item) + if has_children(start_item) + child, cookie = get_first_child(start_item) + while child.is_ok + traverse(child, &block) + child = get_next_sibling(child) + end + end + end +end </ins></span></pre> </div> </div> </body> </html>

...t;/span><span class="cx"> &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp//This behavior matches that used by wxPython and wxPerl. </span><span class="cx"> &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbspVALUE get_first_child(const wxTreeItemId& item) </span></span></pre> </div> </div> </body> </html>

...art_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> </div> </div> </body> </html>

[third sending attempt...] I''m going to try and test out the samples on MSW over the next few days and if things look good I think we should release 1.9.2. Might try and fix the bugs related to TreeCtrl#get_first_child as these might involve minor API changes. So if anyone has any time to test out SVN HEAD and look for anything funny, please do. Also, we have an anonymous patch submitted to implement GL Canvas. The patch looks OK but doesn''t include a sample, and I haven''t had a chance to t...

...t;/span><span class="cx"> &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp//This behavior matches that used by wxPython and wxPerl. </span><span class="cx"> &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbspVALUE get_first_child(const wxTreeItemId& item) </span></span></pre> </div> </div> </body> </html>

...t;> to make these functions reentrant (i.e. allow more than one </span><span class="cx"> enumeration on one and the same object simultaneously). The cookie passed to </span><del>-GetFirstChild and GetNextChild should be the same variable. </del><ins>+get_first_child and "get_next_child":treectrl.html#TreeCtrl_getnextchild should be the same variable. </ins><span class="cx"> </span><del>-Returns an invalid tree item (i.e. IsOk() returns @false@) if there are no further children. </del><ins>+Returns an inv...

...and GTK, and only if + # Wx::TR_HAS_VARIABLE_ROW_HEIGHT style was used in the constructor + font = get_font + font.set_style(Wx::FONTSTYLE_ITALIC) + set_item_font(root_id, font) </ins><span class="cx"> </span><span class="cx"> id,cookie = get_first_child(root_id) </span><span class="cx"> set_item_text_colour(id, Wx::BLUE) </span><span class="lines">@@ -1121,11 +1100,11 @@ </span><span class="cx"> end </span><span class="cx"> </span><span class=&q...