Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / v9 / lib / python2.4 / site-packages / Pmw / Pmw_1_2 / doc / exercises.py

import Tkinter 
import Pmw

class ThresholdScale(Pmw.MegaWidget):
   """ Megawidget containing a scale and an indicator.
   """

   def __init__(self, parent = None, **kw):
       # Define the megawidget options.
       optiondefs = (
           ('colors',      ('green', 'red'), None),
           ('orient',      'vertical',       Pmw.INITOPT),
           ('labelmargin', 0,                Pmw.INITOPT),
           ('labelpos',    None,             Pmw.INITOPT),
           ('threshold',   (50,),            None),
           ('value',       None,             Pmw.INITOPT),
       )
       self.defineoptions(kw, optiondefs)

       # Initialise base class (after defining options).
       Pmw.MegaWidget.__init__(self, parent)

       # Create the components.
       interior = self.interior()

       # Create the indicator component.
       self.indicator = self.createcomponent('indicator',
               (), None,
               Tkinter.Frame, interior,
                       width = 16,
                       height = 16,
                       borderwidth = 2,
                       relief = 'raised')

       # Create the value component.
       self.value = self.createcomponent('value',
               (), None,
               Tkinter.Label, interior,
                   width = 3)

       # Create the scale component.
       if self['orient'] == 'vertical':
           # The default scale range seems to be
           # the wrong way around - reverse it.
           from_ = 100
           to = 0
       else:
           from_ = 0
           to = 100

       self.scale = self.createcomponent('scale',
               (), None,
               Tkinter.Scale, interior,
                       orient = self['orient'],
                       command = self._doCommand,
                       tickinterval = 20,
                       length = 200,
                       from_ = from_,
                       to = to,
                       showvalue = 0)

       value = self['value']
       if value is not None:
           self.scale.set(value)

       # Use grid to position all components
       if self['orient'] == 'vertical':
           self.indicator.grid(row = 1, column = 1)
           self.value.grid(row = 2, column = 1)
           self.scale.grid(row = 3, column = 1)
           # Create the label.
           self.createlabel(interior, childRows=3)
       else:
           self.indicator.grid(row = 1, column = 1)
           self.value.grid(row = 1, column = 2)
           self.scale.grid(row = 1, column = 3)
           # Create the label.
           self.createlabel(interior, childCols=3)

       # Check keywords and initialise options.
       self.initialiseoptions()

   def _doCommand(self, valueStr):
       valueInt = self.scale.get()
       colors = self['colors']
       thresholds = self['threshold']
       color = colors[-1]
       for index in range(len(colors) - 1):
           if valueInt <= thresholds[index]:
               color = colors[index]
               break
       self.indicator.configure(background = color)
       self.value.configure(text = valueStr)

Pmw.forwardmethods(ThresholdScale, Tkinter.Scale, 'scale')

# Initialise Tkinter and Pmw.
root = Pmw.initialise()
root.title('Pmw ThresholdScale demonstration')

# Create and pack two ThresholdScale megawidgets.
mega1 = ThresholdScale(scale_showvalue = 1)
mega1.pack(side = 'left', padx = 10, pady = 10)

mega2 = ThresholdScale(
       colors = ('green', 'yellow', 'red'),
       threshold = (50, 75),
       value = 80,
       indicator_width = 32,
       scale_width = 25)
mega2.pack(side = 'left', padx = 10, pady = 10)

# Create and pack two horizontal ThresholdScale megawidgets.
mega3 = ThresholdScale(
       orient = 'horizontal',
       labelpos = 'n',
       label_text = 'Horizontal')
mega3.pack(side = 'top', padx = 10, pady = 10)
mega4 = ThresholdScale(orient = 'horizontal')
mega4.pack(side = 'top', padx = 10, pady = 10)

# Let's go.
root.mainloop()