src/pgu/gui/keysym.py

   1 """
   2 """
   3 import pygame
   4 from pygame.locals import *
   5
   6 from const import *
   7 import widget
   8
   9 class Keysym(widget.Widget):
  10     """A keysym input.
  11
  12     <p>This widget records the keysym of the key pressed while this widget is in focus.</p>
  13
  14     <pre>Keysym(value=None)</pre>
  15
  16     <dl>
  17     <dt>value<dd>initial keysym, see <a href="http://www.pygame.org/docs/ref/key.html">pygame keysyms</a> </dl>
  18
  19     <strong>Example</strong>
  20     <code>
  21     w = Input(value=pygame.locals.K_g)
  22
  23     w = Input(pygame.locals.K_g)
  24
  25     w = Input()
  26     </code>
  27
  28     """
  29
  30     def __init__(self,value=None,**params):
  31         params.setdefault('cls','keysym')
  32         widget.Widget.__init__(self,**params)
  33         self.value = value
  34
  35         self.font = self.style.font
  36         w,h = self.font.size("Right Super") #"Right Shift")
  37         self.style.width,self.style.height = w,h
  38         #self.rect.w=w+self.style.padding_left+self.style.padding_right
  39         #self.rect.h=h+self.style.padding_top+self.style.padding_bottom
  40
  41     def event(self,e):
  42         used = None
  43         if e.type == FOCUS or e.type == BLUR: self.repaint()
  44         elif e.type == KEYDOWN:
  45             if e.key != K_TAB:
  46                 self.value = e.key
  47                 self.repaint()
  48                 self.send(CHANGE)
  49                 used = True
  50             self.next()
  51         self.pcls = ""
  52         if self.container.myfocus is self: self.pcls = "focus"
  53         return used
  54
  55     def paint(self,s):
  56         r = pygame.rect.Rect(0,0,self.rect.w,self.rect.h)
  57         #render_box(s,self.style.background,r)
  58         if self.value == None: return
  59         name = ""
  60         for p in pygame.key.name(self.value).split(): name += p.capitalize()+" "
  61         #r.x = self.style.padding_left;
  62         #r.y = self.style.padding_bottom;
  63         s.blit(self.style.font.render(name, 1, self.style.color), r)
  64
  65     def __setattr__(self,k,v):
  66         if k == 'value' and v != None:
  67             v = int(v)
  68         _v = self.__dict__.get(k,NOATTR)
  69         self.__dict__[k]=v
  70         if k == 'value' and _v != NOATTR and _v != v:
  71             self.send(CHANGE)
  72             self.repaint()