Pmw ScrolledListBox: scroll mode : Pmw ScrolledText « GUI Pmw « Python






Pmw ScrolledListBox: scroll mode

Pmw ScrolledListBox: scroll mode
#Pmw copyright

#Copyright 1997-1999 Telstra Corporation Limited, Australia 
#Copyright 2000-2002 Really Good Software Pty Ltd, Australia

#Permission is hereby granted, free of charge, to any person obtaining a copy 
#of this software and associated documentation files (the "Software"), to deal 
#in the Software without restriction, including without limitation the rights 
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
#copies of the Software, and to permit persons to whom the Software is furnished 
#to do so, subject to the following conditions:

#The above copyright notice and this permission notice shall be included in all 
#copies or substantial portions of the Software.

#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
#INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
#PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
#HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
#OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
#SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 





title = 'Pmw.ScrolledListBox demonstration'

# Import Pmw from this directory tree.
import sys
sys.path[:0] = ['../../..']

import Tkinter
import Pmw

class Demo:
    def __init__(self, parent):
  # Create the ScrolledListBox.
  self.box = Pmw.ScrolledListBox(parent,
    items=('Sydney', 'Melbourne', 'Brisbane'),
    labelpos='nw',
    label_text='Cities',
    listbox_height = 6,
    selectioncommand=self.selectionCommand,
    dblclickcommand=self.defCmd,
    usehullsize = 1,
    hull_width = 200,
    hull_height = 200,
  )

  # Create a group widget to contain the scrollmode options.
  w = Pmw.Group(parent, tag_text='Scroll mode')
  w.pack(side = 'bottom', padx = 5, pady = 5)

  hmode = Pmw.OptionMenu(w.interior(),
    labelpos = 'w',
    label_text = 'Horizontal:',
    items = ['none', 'static', 'dynamic'],
    command = self.sethscrollmode,
    menubutton_width = 8,
  )
  hmode.pack(side = 'top', padx = 5, pady = 5)
  hmode.invoke('dynamic')

  vmode = Pmw.OptionMenu(w.interior(),
    labelpos = 'w',
    label_text = 'Vertical:',
    items = ['none', 'static', 'dynamic'],
    command = self.setvscrollmode,
    menubutton_width = 8,
  )
  vmode.pack(side = 'top', padx = 5, pady = 5)
  vmode.invoke('dynamic')

  buttonBox = Pmw.ButtonBox(parent)
  buttonBox.pack(side = 'bottom')
  buttonBox.add('yview', text = 'Show\nyview', command = self.showYView)
  buttonBox.add('scroll', text = 'Page\ndown', command = self.pageDown)
  buttonBox.add('center', text = 'Center', command = self.centerPage)

  # Pack this last so that the buttons do not get shrunk when
  # the window is resized.
  self.box.pack(fill = 'both', expand = 1, padx = 5, pady = 5)

        # Do this after packing the scrolled list box, so that the
        # window does not resize as soon as it appears (because
        # alignlabels has to do an update_idletasks).
  Pmw.alignlabels((hmode, vmode))

  # Add some more entries to the listbox.
  items = ('Andamooka', 'Coober Pedy', 'Innamincka', 'Oodnadatta')
  self.box.setlist(items)
  self.box.insert(2, 'Wagga Wagga', 'Perth', 'London')
  self.box.insert('end', 'Darwin', 'Auckland', 'New York')
  index = list(self.box.get(0, 'end')).index('London')
  self.box.delete(index)
  self.box.delete(7, 8)
  self.box.insert('end', 'Bulli', 'Alice Springs', 'Woy Woy')
  self.box.insert('end', 'Wallumburrawang', 'Willandra Billabong')

    def sethscrollmode(self, tag):
  self.box.configure(hscrollmode = tag)

    def setvscrollmode(self, tag):
  self.box.configure(vscrollmode = tag)

    def selectionCommand(self):
  sels = self.box.getcurselection()
  if len(sels) == 0:
      print 'No selection'
  else:
      print 'Selection:', sels[0]

    def defCmd(self):
  sels = self.box.getcurselection()
  if len(sels) == 0:
      print 'No selection for double click'
  else:
      print 'Double click:', sels[0]

    def showYView(self):
        print self.box.yview()

    def pageDown(self):
        self.box.yview('scroll', 1, 'page')

    def centerPage(self):
        top, bottom = self.box.yview()
        size = bottom - top
        middle = 0.5 - size / 2
        self.box.yview('moveto', middle)

######################################################################

# Create demo in root window for testing.
if __name__ == '__main__':
    root = Tkinter.Tk()
    Pmw.initialise(root)
    root.title(title)

    exitButton = Tkinter.Button(root, text = 'Exit', command = root.destroy)
    exitButton.pack(side = 'bottom')
    widget = Demo(root)
    root.mainloop()

           
       








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