# __version__ = '$Id: PmwFileDialog.py,v 1.1.1.1 2001/01/23 12:06:27 gregm Exp $' # # Filename dialogs using Pmw # # (C) Rob W.W. Hooft, Nonius BV, 1998 # # No Guarantees. Distribute Freely. # Please send bug-fixes/patches/features to # import os,fnmatch import Tkinter,Pmw class PmwFileDialog(Pmw.Dialog): """File Dialog using Pmw""" def __init__(self, parent = None, **kw): # Define the megawidget options. optiondefs = ( ('filter', '*', self.newfilter), ('directory', os.getcwd(), self.newdir), ('filename', '', self.newfilename), ('historylen',10, None), ('command', None, None), ) self.defineoptions(kw, optiondefs) # Initialise base class (after defining options). Pmw.Dialog.__init__(self, parent) self.withdraw() # Create the components. interior = self.interior() dn = self.createcomponent( 'dirname', (), None, Pmw.ComboBox, (interior,), entryfield_value=self['directory'], entryfield_entry_width=40, selectioncommand=self.setdir, labelpos='w', label_text='Directory:') dn.grid(row=0,column=0,columnspan=2,padx=3,pady=3) del dn # Create the directory list component. dnb = self.createcomponent( 'dirnamebox', (), None, Pmw.ScrolledListBox, (interior,), label_text='directories', labelpos='n', hscrollmode='none', dblclickcommand=self.selectdir) dnb.grid(row=1,column=0,sticky='news',padx=3,pady=3) del dnb # Create the filename list component. fnb = self.createcomponent( 'filenamebox', (), None, Pmw.ScrolledListBox, (interior,), label_text='files', labelpos='n', hscrollmode='none', selectioncommand=self.singleselectfile, dblclickcommand=self.selectfile) fnb.grid(row=1,column=1,sticky='news',padx=3,pady=3) del fnb # Create the filter entry ft = self.createcomponent( 'filter', (), None, Pmw.ComboBox, (interior,), entryfield_value=self['filter'], entryfield_entry_width=40, selectioncommand=self.setfilter, labelpos='w', label_text='Filter:') ft.grid(row=2,column=0,columnspan=2,padx=3,pady=3) del ft # Create the filename entry fn = self.createcomponent( 'filename', (), None, Pmw.ComboBox, (interior,), entryfield_value=self['filename'], entryfield_entry_width=40, selectioncommand=self.setfilename, labelpos='w', label_text='Filename:') fn.grid(row=3,column=0,columnspan=2,padx=3,pady=3) fn.bind('',self.okbutton) del fn # Buttonbox already exists bb=self.component('buttonbox') bb.add('OK',command=self.okbutton) bb.add('Cancel',command=self.cancelbutton) del bb Pmw.alignlabels([self.component('filename'), self.component('filter'), self.component('dirname')]) def okbutton(self): """OK action: user thinks he has input valid data and wants to proceed. This is also called by in the filename entry""" fn=self.component('filename').get() self.setfilename(fn) if self.validate(fn): self.canceled=0 self.deactivate() def cancelbutton(self): """Cancel the operation""" self.canceled=1 self.deactivate() def tidy(self,w,v): """Insert text v into the entry and at the top of the list of the combobox w, remove duplicates""" if not v: return entry=w.component('entry') entry.delete(0,'end') entry.insert(0,v) list=w.component('scrolledlist') list.insert(0,v) index=1 while indexself['historylen']: list.delete(index) else: index=index+1 def setfilename(self,value): if not value: return value=os.path.join(self['directory'],value) dir,fil=os.path.split(value) self.configure(directory=dir,filename=value) c=self['command'] if callable(c): c() def newfilename(self): """Make sure a newly set filename makes it into the combobox list""" self.tidy(self.component('filename'),self['filename']) def setfilter(self,value): self.configure(filter=value) def newfilter(self): """Make sure a newly set filter makes it into the combobox list""" self.tidy(self.component('filter'),self['filter']) self.fillit() def setdir(self,value): self.configure(directory=value) def newdir(self): """Make sure a newly set dirname makes it into the combobox list""" self.tidy(self.component('dirname'),self['directory']) self.fillit() def singleselectfile(self): """Single click in file listbox. Move file to "filename" combobox""" cs=self.component('filenamebox').curselection() if cs!=(): value=self.component('filenamebox').get(cs) self.setfilename(value) def selectfile(self): """Take the selected file from the filename, normalize it, and OK""" value=self.component('filename').get() self.setfilename(value) if value: self.okbutton() def selectdir(self): """Take selected directory from the dirnamebox into the dirname""" cs=self.component('dirnamebox').curselection() if cs!=(): value=self.component('dirnamebox').get(cs) dir=self['directory'] if not dir: dir=os.getcwd() if value: if value=='..': dir=os.path.split(dir)[0] else: dir=os.path.join(dir,value) self.configure(directory=dir) self.fillit() def askfilename(self,directory=None,filter=None): """The actual client function. Activates the dialog, and returns only after a valid filename has been entered (return value is that filename) or when canceled (return value is None)""" if directory!=None: self.configure(directory=directory) if filter!=None: self.configure(filter=filter) self.fillit() self.activate() if self.canceled: return None else: return self.component('filename').get() lastdir="" lastfilter=None def fillit(self): """Get the directory list and show it in the two listboxes""" # Do not run unnecesarily if self.lastdir==self['directory'] and self.lastfilter==self['filter']: return self.lastdir=self['directory'] self.lastfilter=self['filter'] dir=self['directory'] if not dir: dir=os.getcwd() dirs=['..'] files=[] fl=os.listdir(dir) fl.sort() for f in fl: if os.path.isdir(os.path.join(dir,f)): dirs.append(f) else: filter=self['filter'] if not filter: filter='*' if fnmatch.fnmatch(f,filter): files.append(f) self.component('filenamebox').setlist(files) self.component('dirnamebox').setlist(dirs) def validate(self,filename): """Validation function. Should return 1 if the filename is valid, 0 if invalid. May pop up dialogs to tell user why. Especially suited to subclasses: i.e. only return 1 if the file does/doesn't exist""" return 1 if __name__=="__main__": root=Tkinter.Tk() root.withdraw() Pmw.initialise() f=PmwFileDialog(root) f.title('File name dialog') while 1: n=f.askfilename(filter='*') if n==None: break print "Filename : ",repr(n)