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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='ScrolledText.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,'ScrolledText.py'))
self.st.insert('end', '\nThis demonstrates how to\n' +
'add a window to a text widget: ')
counter = Pmw.Counter(self.st.component('text'),
entryfield_value = 9999)
self.st.window_create('end', window = counter)
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()
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