filebrowsebutton.py

Wxpython Implemented on Windows CE, Source code

        if self.history:
            del namedarguments["history"]

        self.historyCallBack=None
        if callable(self.history):
            self.historyCallBack=self.history
            self.history=None
        apply( FileBrowseButton.__init__, ( self,)+arguments, namedarguments)


    def createTextControl( self):
        """Create the text control"""
        textControl = wx.ComboBox(self, -1, style = wx.CB_DROPDOWN )
        textControl.SetToolTipString( self.toolTip )
        textControl.Bind(wx.EVT_SET_FOCUS, self.OnSetFocus)
        if self.changeCallback:
            textControl.Bind(wx.EVT_TEXT, self.OnChanged)
            textControl.Bind(wx.EVT_COMBOBOX, self.OnChanged)
        if self.history:
            history=self.history
            self.history=None
            self.SetHistory( history, control=textControl)
        return textControl


    def GetHistoryControl( self ):
        """
        Return a pointer to the control which provides (at least)
        the following methods for manipulating the history list:
        
            Append( item ) -- add item
            Clear() -- clear all items
            Delete( index ) -- 0-based index to delete from list
            SetSelection( index ) -- 0-based index to select in list
            
        Semantics of the methods follow those for the wxComboBox control
        """
        return self.textControl


    def SetHistory( self, value=(), selectionIndex = None, control=None ):
        """Set the current history list"""
        if control is None:
            control = self.GetHistoryControl()
        if self.history == value:
            return
        self.history = value
        # Clear history values not the selected one.
        tempValue=control.GetValue()
        # clear previous values
        control.Clear()
        control.SetValue(tempValue)
        # walk through, appending new values
        for path in value:
            control.Append( path )
        if selectionIndex is not None:
            control.SetSelection( selectionIndex )


    def GetHistory( self ):
        """Return the current history list"""
        if self.historyCallBack != None:
            return self.historyCallBack()
        elif self.history:
            return list( self.history )
        else:
            return []


    def OnSetFocus(self, event):
        """When the history scroll is selected, update the history"""
        if self.historyCallBack != None:
            self.SetHistory( self.historyCallBack(), control=self.textControl)
        event.Skip()


    if wx.Platform == "__WXMSW__":
        def SetValue (self, value, callBack=1):
            """ Convenient setting of text control value, works
                around limitation of wx.ComboBox """
            save = self.callCallback
            self.callCallback = callBack
            self.textControl.SetValue(value)
            self.callCallback =  save

            # Hack to call an event handler
            class LocalEvent:
                def __init__(self, string):
                    self._string=string
                def GetString(self):
                    return self._string
            if callBack==1:
                # The callback wasn't being called when SetValue was used ??
                # So added this explicit call to it
                self.changeCallback(LocalEvent(value))


class DirBrowseButton(FileBrowseButton):
    def __init__(self, parent, id = -1,
                 pos = wx.DefaultPosition, size = wx.DefaultSize,
                 style = wx.TAB_TRAVERSAL,
                 labelText = 'Select a directory:',
                 buttonText = 'Browse',
                 toolTip = 'Type directory name or browse to select',
                 dialogTitle = '',
                 startDirectory = '.',
                 changeCallback = None,
                 dialogClass = wx.DirDialog,
                 newDirectory = False):
        FileBrowseButton.__init__(self, parent, id, pos, size, style,
                                  labelText, buttonText, toolTip,
                                  dialogTitle, startDirectory,
                                  changeCallback = changeCallback)
        self.dialogClass = dialogClass
        self.newDirectory = newDirectory
    #

    def OnBrowse(self, ev = None):
        style=0

        if self.newDirectory:
          style|=wx.DD_NEW_DIR_BUTTON

        dialog = self.dialogClass(self,
                                  message = self.dialogTitle,
                                  defaultPath = self.startDirectory,
                                  style = style)

        if dialog.ShowModal() == wx.ID_OK:
            self.SetValue(dialog.GetPath())
        dialog.Destroy()
    #


#----------------------------------------------------------------------


if __name__ == "__main__":
    #from skeletonbuilder import rulesfile
    class SimpleCallback:
        def __init__( self, tag ):
            self.tag = tag
        def __call__( self, event ):
            print self.tag, event.GetString()
    class DemoFrame( wx.Frame ):
        def __init__(self, parent):
            wx.Frame.__init__(self, parent, -1, "File entry with browse", size=(500,260))
            self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
            panel = wx.Panel (self,-1)
            innerbox = wx.BoxSizer(wx.VERTICAL)
            control = FileBrowseButton(
                panel,
                initialValue = "z:\\temp",
            )
            innerbox.Add(  control, 0, wx.EXPAND )
            middlecontrol = FileBrowseButtonWithHistory(
                panel,
                labelText = "With History",
                initialValue = "d:\\temp",
                history = ["c:\\temp", "c:\\tmp", "r:\\temp","z:\\temp"],
                changeCallback= SimpleCallback( "With History" ),
            )
            innerbox.Add( middlecontrol, 0, wx.EXPAND )
            middlecontrol = FileBrowseButtonWithHistory(
                panel,
                labelText = "History callback",
                initialValue = "d:\\temp",
                history = self.historyCallBack,
                changeCallback= SimpleCallback( "History callback" ),
            )
            innerbox.Add( middlecontrol, 0, wx.EXPAND )
            self.bottomcontrol = control = FileBrowseButton(
                panel,
                labelText = "With Callback",
                style = wx.SUNKEN_BORDER|wx.CLIP_CHILDREN ,
                changeCallback= SimpleCallback( "With Callback" ),
            )
            innerbox.Add(  control, 0, wx.EXPAND)
            self.bottommostcontrol = control = DirBrowseButton(
                panel,
                labelText = "Simple dir browse button",
                style = wx.SUNKEN_BORDER|wx.CLIP_CHILDREN)
            innerbox.Add(  control, 0, wx.EXPAND)
            ID = wx.NewId()
            innerbox.Add( wx.Button( panel, ID,"Change Label",  ), 1, wx.EXPAND)
            self.Bind(wx.EVT_BUTTON, self.OnChangeLabel , id=ID)
            ID = wx.NewId()
            innerbox.Add( wx.Button( panel, ID,"Change Value",  ), 1, wx.EXPAND)
            self.Bind(wx.EVT_BUTTON, self.OnChangeValue, id=ID )
            panel.SetAutoLayout(True)
            panel.SetSizer( innerbox )
            self.history={"c:\\temp":1, "c:\\tmp":1, "r:\\temp":1,"z:\\temp":1}

        def historyCallBack(self):
            keys=self.history.keys()
            keys.sort()
            return keys

        def OnFileNameChangedHistory (self, event):
            self.history[event.GetString ()]=1

        def OnCloseMe(self, event):
            self.Close(True)
        def OnChangeLabel( self, event ):
            self.bottomcontrol.SetLabel( "Label Updated" )
        def OnChangeValue( self, event ):
            self.bottomcontrol.SetValue( "r:\\somewhere\\over\\the\\rainbow.htm" )

        def OnCloseWindow(self, event):
            self.Destroy()

    class DemoApp(wx.App):
        def OnInit(self):
            wx.InitAllImageHandlers()
            frame = DemoFrame(None)
            frame.Show(True)
            self.SetTopWindow(frame)
            return True

    def test( ):
        app = DemoApp(0)
        app.MainLoop()
    print 'Creating dialog'
    test( )