[wxPython-users] wxPython 2.8 transition, python alike properties

[Jorgen Bodde]

Ofcourse I meant exception ;-) access violations are only happening in
my Delphi environment I am confined to during working hours ;-)

- Jorgen

On 1/11/07, Jorgen Bodde <jorgen.maillist at gmail.com> wrote:
> Robin,
>
> Just out of curiousity.. when I read this it seemed very nice to have
> getters and setter, however the distinction between methods with a Get
> and Set prefix and the ones only having a Get prefix is not intuitive,
> and if I would be programming, I would stick to the traditional
> methods because of Python's way of accepting any property even when it
> does not exist.
>
> What about creating a setter or getter that returns an access
> violation ? If for example;
>
> mywindow.Default = true
>
> and I would use:
>
> if mywindow.Default:
>   ...
>
> an access violation would occur because there is no GetDefault
> binding. This way the python-like properties are much more valuable. I
> am not sure how simple this is to implement, but only implementing
> properties that can only be read/writable sounds confusing.
>
> Regards,
> - Jorgen
>
> On 1/10/07, Robin Dunn <robin at alldunn.com> wrote:
> > Basil Shubin wrote:
> > > Hello friends!
> > >
> > > I have make transition from 2.6 to 2.8. One of the innovation of new
> > > wxPython is python alike properties! But for some case I don't realise
> > > how to use them, or exactly how to transite to them from 2.6 branch.
> > > Here a task list:
> >
> > The general rule is that there are properties in a class for any
> > non-static method that has a GetFoo name that takes no parameters.  If
> > there is also a matching SetFoo that takes only one parameter then it
> > will be set as the setter for that property.
> >
> > >
> > > 1. SetStatusText("welcome") to StatusText = "welcome" No errors, but
> > > won't show the message inside StatusBar?
> >
> > I assume you are talking about wx.Frame here.  There is no GetStatusText
> > so there is no property, so you are just assigning to a normal attribute
> > named StatusText.
> >
> > >
> > > 2. Is there property for wx.SystemSettings.GetFont(wx.SYS_SYSTEM_FONT)?
> >
> > No, it is a staticmethod.
> >
> > >
> > > 3. Is there property for SetSizerAndFit(sizer) and SetSizer(sizer)?
> >
> >
> > No getter for the first.  There is a property for 'Sizer' though.
> >
> > >
> > > 4. wx.Button's SetToolTipString("ToolTip") to ToolTipString = "ToolTip"
> > > No errors, but won't show the tooltip for this button?
> >
> > No matching getters.
> >
> > >
> > > 5. Is there property for wx.Buttons' SetDefault()?
> >
> > No getter
> >
> > >
> > > 6. Is there property for wx.TextCtrl's SetFocus()?
> >
> > No getter
> >
> >
> > >
> > > 7. Is there property for wx.SpinCtrl's SetRange(1,1000)?
> >
> > No, but there are properties for 'Min' and 'Max'
> >
> > >
> > > 8. Is there property for wx.ListCtrl's + mixins:
> > >     SetImageList(self.imagelist, wx.IMAGE_LIST_SMALL);
> >
> > Yes, but there shouldn't be because the getter takes a parameter, and
> > the setter takes more than one.  It's a bug that there is one there
> > currently.
> >
> > >     SetColumnWidth(0, 150);
> > >     SetStringItem(index, 1, item);
> > >     SetItemData(index, idx);
> > >     SetItemState(index, wx.LIST_STATE_SELECTED, wx.LIST_STATE_SELECTED);
> > >     GetItemData(self.currentItem);
> >
> > Each of these has too many parameters.
> >
> > BTW, the properties are all listed in the class docs in the
> > Python-specific docs at http://wxpython.wxcommunity.com/docs/api/
> >
> > --
> > Robin Dunn
> > Software Craftsman
> > http://wxPython.org  Java give you jitters?  Relax with wxPython!
> >
> >
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> >
>