How to prevent radiobox from expanding when it's added to a toolbar?

[steve2]

Hi,

I create a frame and a toolbar on it. Then I add a radiobox on toolbar.

But since some of the label strings on the radiobox are longer than the others, I think it sets all labels’ width same according to the longest label. Therefore, the radiobox expands to the right on the toolbar and it doesn’t look good. How do I prevent radiobox from expanding to the right? I would like each label on the radiobox to have minimum width.

Thanks
Best Regards

import wx

class MyForm(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "Frame",
                          style=wx.DEFAULT_FRAME_STYLE ^ wx.RESIZE_BORDER ^ wx.MAXIMIZE_BOX,
                          size=wx.Size(800, 200))
        self.toolbar = self.CreateToolBar(True)

        item_list = ["Button 1", "Long Label Button 2", "Button 3", "Button 4", "Button 5",]
        self.radio_box = wx.RadioBox(self.toolbar, -1, "Box", wx.DefaultPosition, wx.DefaultSize, item_list, 0, wx.RA_SPECIFY_COLS)
        self.toolbar.AddSeparator()
        self.toolbar.AddControl(self.radio_box)
        self.toolbar.Bind(wx.EVT_RADIOBOX, self.EvtRadioBox, self.radio_box)


    def EvtRadioBox(self, event):
        self.selected_item_ix = self.radio_box.GetSelection()
        self.selected_item = self.radio_box.GetString(self.selected_item_ix)
        print("selected term: ", self.selected_item)

if __name__ == "__main__":
    app = wx.App(False)
    frame = MyForm()
    frame.Show()
    app.MainLoop()

[komoto48g]

Hi steve2,

I think the fixed width seems to be the default and cannot be changed.
If you’re not happy with that, you’ll have to create a custom control, e.g.

class RadioBox(wx.Control):
    def __init__(self, parent, label, choices):
        super().__init__(parent, style=wx.BORDER_NONE)

        box = wx.StaticBox(self, -1, label)
        sizer = wx.StaticBoxSizer(box)
        for v in choices:
            rb = wx.RadioButton(self, -1, v)
            sizer.Add(rb, 0, wx.EXPAND | wx.ALL, 0)
        self.SetSizer(sizer)
        sizer.Fit(self)

Usage:

        self.radio_box = RadioBox(
            self.toolbar, label="Box", choices=item_list)
        self.radio_box.Bind(wx.EVT_RADIOBUTTON,
                            lambda v: print(v.EventObject.Label))

[rolfofsaxony]

I would like each label on the radiobox to have minimum width.

I assume you mean maximum.
So take komoto’s idea and simply add a width restriction parameter.
Another quirk, seems to be that the box overrides the individual tooltips, which is annoying but can be utilised.
Combine the choices to make a single tooltip for the radiobox but still assign each radio button its own tooltip, as this can be utilised instead of the label, for event processing.
See:

import wx

class RadioBox(wx.Control):
    def __init__(self, parent, label, choices, labelwidth=None):
        super().__init__(parent, style=wx.BORDER_NONE)

        box = wx.StaticBox(self, -1, label)
        sizer = wx.StaticBoxSizer(box)

        for v in choices:
            rb = wx.RadioButton(self, -1, v[:labelwidth])
            rb.SetToolTip(v)
            sizer.Add(rb, 0, wx.ALL, 0)
        self.SetSizer(sizer)
        sizer.Fit(self)
        tip = "\n".join(choices)
        self.SetToolTip(tip)


class MyForm(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "Frame",
                          style=wx.DEFAULT_FRAME_STYLE ^ wx.RESIZE_BORDER ^ wx.MAXIMIZE_BOX,
                          size=wx.Size(800, 200))
        self.toolbar = self.CreateToolBar(True)

        item_list = ["Button 1", "Long Label Button 2", "Button 3", "Button 4", "Button 5",]
        self.radio_box = RadioBox(self.toolbar, "Box", choices=item_list, labelwidth=10)
        self.toolbar.AddSeparator()
        self.toolbar.AddControl(self.radio_box)
        self.radio_box.Bind(wx.EVT_RADIOBUTTON, self.EvtRadioBox)

    def EvtRadioBox(self, event):
        obj = event.GetEventObject()
        print("selected term: ", obj.GetToolTip().GetTip())

if __name__ == "__main__":
    app = wx.App(False)
    frame = MyForm()
    frame.Show()
    app.MainLoop()