[wxPython-users] plese suggest good tutorial for sizers.

[Christopher Barker]

oops,

I forgot to enclose it in the last email. Here it is.

Christopher Barker wrote:

> By the way, As it is often the case that you want to use a label and a =

> text box as essentially one control, I wrote a little module that helps =

> with that. I've enclosed it.

-- =

Christopher Barker, Ph.D.
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Chris.Barker at noaa.gov
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#!/usr/bin/env python2.4

"""
A module to provide a labeled window: one with a regular old wx.Window
and a wx.StaticText next to each other.

What you get is a Sizer with the widgets layed out for you.

"""

import wx

def LabeledWindowSizer(window, label, pos =3D wx.TOP, space=3D2, stretch=3D=
0, SizerFlags=3D0):

    """
    LabeledWindow(window,
                  label,
                  pos =3D wx.TOP,
                  space=3D2,
                  stretch=3D0,
                  SizerFlags=3D0):

    Creates a Sizer that contains the wx.Window passed in, with a
    wx.StaticText as a label to one side of the Window. The resulting
    Sizer can then be Added, as a unit, to another sizer.

    window: Any wx.Window -- created in the usual way.

    label: A string with the text you want in the label.

    pos: position: one of: wx.TOP, wx.LEFT, wx.RIGHT, wx.BOTTOM

    space: number of pixels of space between the label and the Window

    stretch: the Sizer "option" parameter, indicating how much you want
    the Window to stretch

    SizerFlags: any Sizer Flags for the window you want passed into the siz=
er.
    =

    """

    ## use the window's parent for the StaticText
    parent =3D window.GetParent()
    Text =3D wx.StaticText(parent, label=3Dlabel)
    if pos =3D=3D wx.TOP:
        Sizer =3D wx.BoxSizer(wx.VERTICAL)
        Sizer.Add(Text, 0, wx.ALIGN_LEFT)
        Sizer.Add((1,space),0)
        Sizer.Add(window, stretch, SizerFlags)

    elif pos =3D=3D wx.LEFT:
        Sizer =3D wx.BoxSizer(wx.HORIZONTAL)
        Sizer.Add(Text, 0, wx.ALIGN_RIGHT | wx.ALIGN_CENTER_VERTICAL)
        Sizer.Add((space,1), 0)
        Sizer.Add(window, stretch, wx.ALIGN_CENTER_VERTICAL|SizerFlags)

    elif pos =3D=3D wx.RIGHT:
        Sizer =3D wx.BoxSizer(wx.HORIZONTAL)
        Sizer.Add(window, stretch, wx.ALIGN_CENTER_VERTICAL|SizerFlags)
        Sizer.Add((space,1), 0)
        Sizer.Add(Text, 0, wx.ALIGN_RIGHT | wx.ALIGN_CENTER_VERTICAL)

    elif pos =3D=3D wx.BOTTOM:
        Sizer =3D wx.BoxSizer(wx.VERTICAL)
        Sizer.Add(window, stretch, SizerFlags)
        Sizer.Add((1,space),0)
        Sizer.Add(Text, 0, wx.ALIGN_LEFT)


    else:
        raise ValueError("%s is not a supported Position"%pos)

    return Sizer

if __name__ =3D=3D "__main__":

    Choices =3D "these are some choices A_really_Long_One".split()

    class TestPanel(wx.Panel):
        def __init__(self, *args, **kwargs):
            wx.Panel.__init__(self, *args, **kwargs)

            Sizer =3D wx.FlexGridSizer(cols=3D2, vgap=3D20, hgap=3D20)

            # basic:
            win =3D wx.Choice(self, choices=3DChoices)
            win =3D LabeledWindowSizer(win, label=3D"A top label:")
            Sizer.Add(win, 0, wx.ALIGN_CENTER_VERTICAL)

            win =3D wx.Choice(self, choices=3DChoices)
            win =3D LabeledWindowSizer(win, label=3D"A left label:", pos=3D=
wx.LEFT)
            Sizer.Add(win, 0, wx.ALIGN_CENTER_VERTICAL)

            # one with a small Window and large label
            win =3D wx.Choice(self, choices=3DChoices[:-1])
            win =3D LabeledWindowSizer(win, label=3D"A long top label:")
            Sizer.Add(win, 0, wx.ALIGN_CENTER_VERTICAL)

            # A Textcontrol:
            win =3D wx.TextCtrl(self, value=3D"Some sample text")
            win =3D LabeledWindowSizer(win,
                                     label=3D"A left Label:",
                                     pos=3Dwx.LEFT,
                                     stretch=3D1,
                                     )
            Sizer.Add(win, 1, wx.ALIGN_CENTER_VERTICAL|wx.GROW)

            # one with a small Window and small label
            win =3D wx.Choice(self, choices=3DChoices[:-1])
            win =3D LabeledWindowSizer(win, label=3D"A label:")
            Sizer.Add(win, 0, wx.ALIGN_CENTER_VERTICAL|wx.ALIGN_RIGHT)


            win =3D wx.TextCtrl(self, value=3D"Some sample text", style=3Dw=
x.TE_MULTILINE)
            win =3D LabeledWindowSizer(win,
                                     label=3D"A left Label:",
                                     pos=3Dwx.LEFT,
                                     stretch=3D1,
                                     )
            Sizer.Add(win, 1, wx.ALIGN_CENTER_VERTICAL|wx.GROW)


            win =3D wx.Choice(self, choices=3DChoices)
            win =3D LabeledWindowSizer(win,
                                     label=3D"A bottom label:",
                                     pos=3Dwx.BOTTOM)
            Sizer.Add(win, 0, wx.ALIGN_CENTER_VERTICAL)

            win =3D wx.Choice(self, choices=3DChoices)
            win =3D LabeledWindowSizer(win, label=3D":A right label", pos=
=3Dwx.RIGHT)
            Sizer.Add(win, 0, wx.ALIGN_CENTER_VERTICAL)

            =

            self.SetSizerAndFit(Sizer)
            =


    App =3D wx.App()
    f =3D wx.Frame(None)
    p =3D TestPanel(f)
    f.Fit()
    f.Show()
    App.MainLoop()