Pmw ScrolledText: scroll mode

#Pmw copyright

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

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#copies of the Software, and to permit persons to whom the Software is furnished 
#to do so, subject to the following conditions:

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#copies or substantial portions of the Software.

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#SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 





title = 'Pmw.ScrolledText demonstration'

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

import os
import Tkinter
import Pmw

class Demo:
    def __init__(self, parent):
  # Create the ScrolledText.
  self.st = Pmw.ScrolledText(parent,
    borderframe = 1,
    labelpos = 'n',
    label_text='test.py',
    usehullsize = 1,
    hull_width = 400,
    hull_height = 300,
    text_padx = 10,
    text_pady = 10,
    text_wrap='none'
  )

  # 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 = 'left', 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 = 'left', 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.st.pack(padx = 5, pady = 5, fill = 'both', expand = 1)

  # Read this file into the text widget.
  head, tail = os.path.split(sys.argv[0])
  self.st.importfile(os.path.join(head,'result.txt'))


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

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

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

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

    def centerPage(self):
        top, bottom = self.st.yview()
        size = bottom - top
        middle = 0.5 - size / 2
        self.st.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()
Related examples in the same category

1.	Pmw ScrolledListBox: scroll mode
2.	Pmw ScrolledText with header
3.	Load text file into Pmw ScrolledText
Pmw ScrolledText: scroll mode : Pmw ScrolledText « GUI Pmw « Python

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