[wxPython-users] XRCed: Most simple example won't work, what am I doing wrong?

[Roman Rolinsky]

Hi,

It's a bug in pywrc tool - it does not support a MenuBar inside a
top-level window (actually it supposes all window children can be found
by FindItemById from the main objct which is not the case for menu
classes). 

	self.MENU_FILE = xrc.XRCCTRL(self, "MENU_FILE")
	self.COMMAND_QUIT = self.FindItemById(xrc.XRCID("COMMAND_QUIT"))

it sould have generated something like

        self.MENU_FILE = self.GetMenuBar()
	self.COMMAND_QUIT = self.MENU_FILE.FindItemById(xrc.XRCID("COMMAND_QUIT"))

GetMenuBar is needed because XRCCTRL can't find the menubar object
(maybe because it's not really a control). Actually the name MENU_FILE
in the XRC file is probably ignored colpletely.

pywrc is a separate tool which is called by XRCed, and provides only
basic code generaion, which can be often used as a starting point for a
project but sometimes requires hand-editing. I'm working on a general
way to provide code-generation from XRCed in the future version.

Roman

On Thu, 2007-05-10 at 13:01 +0200, Markus Schöpflin wrote:
> Hello,
> 
> I'm using XRCed 0.1.8-5 from the wxPython 2.8.3 doc and demos installation.
> 
> I have created a small xrc file:
> 
> ---%<---
> <?xml version="1.0" encoding="cp1252"?>
> <resource>
>    <object class="wxFrame" name="FRAME1">
>      <title></title>
>      <object class="wxMenuBar">
>        <object class="wxMenu" name="MENU_FILE">
>          <label>&amp;File</label>
>          <object class="wxMenuItem" name="COMMAND_QUIT">
>            <label>&amp;Quit</label>
>          </object>
>        </object>
>      </object>
>    </object>
> </resource>
> --->%---
> 
> I tell XRCed to generate the Python code for me, resulting in the following class:
> 
> ---%<---
> class xrcFRAME1(wx.Frame):
>      def PreCreate(self, pre):
>          """ This function is called during the class's initialization.
> 
>          Override it for custom setup before the window is created usually to
>          set additional window styles using SetWindowStyle() and SetExtraStyle()."""
>          pass
> 
>      def __init__(self, parent):
>          # Two stage creation (see http://wiki.wxpython.org/index.cgi/TwoStageCreation)
>          pre = wx.PreFrame()
>          self.PreCreate(pre)
>          get_resources().LoadOnFrame(pre, parent, "FRAME1")
>          self.PostCreate(pre)
> 
>          # Define variables for the controls
>          self.MENU_FILE = xrc.XRCCTRL(self, "MENU_FILE")
>          self.COMMAND_QUIT = self.FindItemById(xrc.XRCID("COMMAND_QUIT"))
> --->%---
> 
> When trying to instantiate this class, I get the following error:
> 
> ---%<---
> ...
>     self.COMMAND_QUIT = self.FindItemById(xrc.XRCID("COMMAND_QUIT"))
> AttributeError: 'xrcFRAME1' object has no attribute 'FindItemById'
> --->%---
> 
> Now, could anybody please tell me what I am doing wrong?
> 
> TIA, Markus
> 
> 
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