Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / amd64 / lib / python2.4 / site-packages / Pmw / Pmw_1_2 / demos / ScrolledCanvas.py

title = 'Pmw.ScrolledCanvas demonstration'

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

import Tkinter
import Pmw

class Demo:
   def __init__(self, parent):
       # Create the ScrolledCanvas.
       self.sc = Pmw.ScrolledCanvas(parent,
               borderframe = 1,
               labelpos = 'n',
               label_text = 'ScrolledCanvas',
               usehullsize = 1,
               hull_width = 400,
               hull_height = 300,
       )

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

       self.sc.component('canvas').bind('<1>', self.addcircle)

       testEntry = Tkinter.Entry(parent)
       self.sc.create_line(20, 20, 100, 100)
       self.sc.create_oval(100, 100, 200, 200, fill = 'green')
       self.sc.create_text(100, 20, anchor = 'nw',
               text = 'Click in the canvas\nto draw ovals',
               font = testEntry.cget('font'))
       button = Tkinter.Button(self.sc.interior(),
               text = 'Hello,\nWorld!\nThis\nis\na\nbutton.')
       self.sc.create_window(200, 200,
               anchor='nw',
               window = button)

       # Set the scroll region of the canvas to include all the items
       # just created.
       self.sc.resizescrollregion()

       self.colours = ('red', 'green', 'blue', 'yellow', 'cyan', 'magenta',
               'black', 'white')
       self.oval_count = 0
       self.rand = 12345

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

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

   def addcircle(self, event):
       x = self.sc.canvasx(event.x)
       y = self.sc.canvasy(event.y)
       width = 10 + self.random() % 100
       height = 10 + self.random() % 100
       self.sc.create_oval(
           x - width, y - height, x + width, y + height,
           fill = self.colours[self.oval_count])
       self.oval_count = (self.oval_count + 1) % len(self.colours)
       self.sc.resizescrollregion()

   # Simple random number generator.
   def random(self):
       self.rand = (self.rand * 125) % 2796203
       return self.rand

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

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

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