research/transmission_spectroscopy/simulator/pgu-0.18/build/lib/pgu/gui/misc.py

   1 from .const import *
   2 from . import widget
   3 from . import pguglobals
   4
   5 class ProgressBar(widget.Widget):
   6     """A progress bar widget.
   7
   8     Example:
   9         w = gui.ProgressBar(0,0,100)
  10         w.value = 25
  11
  12     """
  13
  14     _value = None
  15
  16     def __init__(self,value,min,max,**params):
  17         params.setdefault('cls','progressbar')
  18         widget.Widget.__init__(self,**params)
  19         self.min,self.max,self.value = min,max,value
  20
  21     def paint(self,s):
  22         if (self.value != None):
  23             r = pygame.rect.Rect(0,0,self.rect.w,self.rect.h)
  24             r.w = r.w*(self.value-self.min)/(self.max-self.min)
  25             self.bar = r
  26             pguglobals.app.theme.render(s,self.style.bar,r)
  27
  28     @property
  29     def value(self):
  30         return self._value
  31
  32     @value.setter
  33     def value(self, val):
  34         val = int(val)
  35         val = max(val, self.min)
  36         val = min(val, self.max)
  37         oldval = self._value
  38         self._value = val
  39         if (oldval != val):
  40             self.send(CHANGE)
  41             self.repaint()
  42
  43