import wx import wxaddons.sized_controls as sc overview = """\

Sized Controls

SizedControls is an addon library that attempts to simplify the creation of sizer-based layouts. It adds the following classes:

SizedPanel

This class automatically creates its own sizer (a vertical box sizer by default) and automatically adds its children to the sizer. You can change the SizedPanel's sizer type by calling panel.SetSizerType(\"type\", [args]), where valid types are \"horizontal\", \"vertical\", \"form\" (a 2-col flex grid sizer), and \"grid\". Args include \"cols\" and \"rows\" attributes for grids. This class also applies control borders that adhere to the native platform's Human Interface Guidelines (HIG) on Win, GTK and Mac.

SizedFrame and SizedDialog

These classes automatically setup a SizedPanel which is appropriately positioned and given appropriate borders in accordance with the platform's HIGs.

Since controls are added to the parent's sizer upon creation, you don't need to use sizer.Add or even create sizers yourself. You just use SetSizerType() to change the sizer you want to use, and control.SetSizerProps() to change the sizer properties of the control. So as a result, code that used to look like this:
... wx.Dialog init code... panel = wx.Panel(self, -1) b1 = wx.Button(panel, -1) b2 = wx.Button(panel, -1) t1 = wx.TextCtrl(panel, -1) b3 = wx.Button(panel, -1) sizer = wx.BoxSizer(wx.HORIZONTAL) sizer.Add(b1, 0, wx.ALL, 6) sizer.Add(b2, 0, wx.ALL, 6) sizer.Add(t1, 0, wx.EXPAND | wx.ALL, 6) sizer.Add(b3, 0, wx.ALL, 6) panel.SetSizer(sizer) dlgSizer = wx.BoxSizer() dlgSizer.Add(panel, 1, wx.EXPAND) self.SetSizer(dlgSizer) self.SetAutoLayout(True) ... rest of dialog ...

would now look like this:
... wx.Dialog init code... panel = self.GetContentsPane() panel.SetSizerType(\"horizontal\") b1 = wx.Button(panel, -1) b2 = wx.Button(panel, -1) t1 = wx.TextCtrl(panel, -1) t1.SetSizerProps(expand=True) b3 = wx.Button(panel, -1) ... rest of dialog ...

and the latter example will adhere to HIG spacing guidelines on all platforms, unlike the former example. Please check the demos for more complete and sophisticated examples of SizedControls in action. """ class FormDialog(sc.SizedDialog): def __init__(self, parent, id): sc.SizedDialog.__init__(self, None, -1, "SizedForm Dialog", style=wx.DEFAULT_DIALOG_STYLE | wx.RESIZE_BORDER) pane = self.GetContentsPane() pane.SetSizerType("form") # row 1 wx.StaticText(pane, -1, "Name") textCtrl = wx.TextCtrl(pane, -1, "Your name here") textCtrl.SetSizerProps(expand=True) # row 2 wx.StaticText(pane, -1, "Email") emailCtrl = wx.TextCtrl(pane, -1, "") emailCtrl.SetSizerProps(expand=True) # row 3 wx.StaticText(pane, -1, "Gender") wx.Choice(pane, -1, choices=["male", "female"]) # row 4 wx.StaticText(pane, -1, "State") wx.TextCtrl(pane, -1, size=(60, -1)) # two chars for state # row 5 wx.StaticText(pane, -1, "Title") # here's how to add a 'nested sizer' using sized_controls radioPane = sc.SizedPanel(pane, -1) radioPane.SetSizerType("horizontal") radioPane.SetSizerProps(expand=True) # make these children of the radioPane to have them use # the horizontal layout wx.RadioButton(radioPane, -1, "Mr.") wx.RadioButton(radioPane, -1, "Mrs.") wx.RadioButton(radioPane, -1, "Dr.") # end row 5 # add dialog buttons self.SetButtonSizer(self.CreateStdDialogButtonSizer(wx.OK | wx.CANCEL)) # a little trick to make sure that you can't resize the dialog to # less screen space than the controls need self.Fit() self.SetMinSize(self.GetSize()) class ErrorDialog(sc.SizedDialog): def __init__(self, parent, id): sc.SizedDialog.__init__(self, parent, id, "Error log viewer", style=wx.DEFAULT_DIALOG_STYLE|wx.RESIZE_BORDER) # Always use self.GetContentsPane() - this ensures that your dialog # automatically adheres to HIG spacing requirements on all platforms. # pane here is a sc.SizedPanel with a vertical sizer layout. All children # should be added to this pane, NOT to self. pane = self.GetContentsPane() # first row self.listCtrl = wx.ListCtrl(pane, -1, size=(300, -1), style=wx.LC_REPORT) self.listCtrl.SetSizerProps(expand=True, proportion=1) self.ConfigureListCtrl() # second row self.lblDetails = wx.StaticText(pane, -1, "Error Details") # third row self.details = wx.TextCtrl(pane, -1, style=wx.TE_MULTILINE) self.details.SetSizerProps(expand=True, proportion=1) # final row # since we want to use a custom button layout, we won't use the # CreateStdDialogBtnSizer here, we'll just create our own panel with # a horizontal layout and add the buttons to that. btnpane = sc.SizedPanel(pane, -1) btnpane.SetSizerType("horizontal") btnpane.SetSizerProps(expand=True) self.saveBtn = wx.Button(btnpane, wx.ID_SAVE) spacer = sc.SizedPanel(btnpane, -1) spacer.SetSizerProps(expand=True, proportion=1) self.clearBtn = wx.Button(btnpane, -1, "Clear") self.Fit() self.SetMinSize(self.GetSize()) def ConfigureListCtrl(self): self.listCtrl.InsertColumn(0, "Time") self.listCtrl.InsertColumn(1, "Error Message") self.listCtrl.SetColumnWidth(0, 100) self.listCtrl.SetColumnWidth(1, 280) #--------------------------------------------------------------------------- class TestPanel(wx.Panel): def __init__(self, parent, log): self.log = log self.parent = parent wx.Panel.__init__(self, parent, -1) b = wx.Button(self, -1, "Sized Controls Form Dialog", (50,50)) self.Bind(wx.EVT_BUTTON, self.OnFormButton, b) b2 = wx.Button(self, -1, "Sized Controls Error Dialog", (50,90)) self.Bind(wx.EVT_BUTTON, self.OnErrorButton, b2) def OnFormButton(self, evt): print dlg = FormDialog(self, -1) dlg.CenterOnScreen() # this does not return until the dialog is closed. val = dlg.ShowModal() if val == wx.ID_OK: self.log.WriteText("You pressed OK\n") else: self.log.WriteText("You pressed Cancel\n") dlg.Destroy() def OnErrorButton(self, evt): dlg = ErrorDialog(self, -1) dlg.CenterOnScreen() # this does not return until the dialog is closed. val = dlg.ShowModal() if val == wx.ID_OK: self.log.WriteText("You pressed OK\n") else: self.log.WriteText("You pressed Cancel\n") dlg.Destroy() def runTest(frame, nb, log): win = TestPanel(nb, log) return win if __name__ == "__main__": app = wx.PySimpleApp() dlg = FormDialog() dlg.ShowModal()