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"""
"""
import pygame
from pygame.locals import *
from .const import *
from . import widget
class Input(widget.Widget):
"""A single line text input.
Example:
w = Input(value="Cuzco the Goat",size=20)
w = Input("Marbles")
"""
_value = None
def __init__(self,value="",size=20,**params):
"""Create a new Input widget.
Keyword arguments:
value -- initial text
size -- size for the text box, in characters
"""
params.setdefault('cls','input')
widget.Widget.__init__(self,**params)
self.value = value
self.pos = len(str(value))
self.vpos = 0
self.font = self.style.font
w,h = self.font.size("e"*size)
if not self.style.height: self.style.height = h
if not self.style.width: self.style.width = w
#self.style.height = max(self.style.height,h)
#self.style.width = max(self.style.width,w)
#self.rect.w=w+self.style.padding_left+self.style.padding_right;
#self.rect.h=h+self.style.padding_top+self.style.padding_bottom;
def paint(self,s):
r = pygame.Rect(0,0,self.rect.w,self.rect.h)
cs = 2 #NOTE: should be in a style
w,h = self.font.size(self.value[0:self.pos])
x = w-self.vpos
if x < 0: self.vpos -= -x
if x+cs > s.get_width(): self.vpos += x+cs-s.get_width()
s.blit(self.font.render(self.value, 1, self.style.color),(-self.vpos,0))
if self.container.myfocus is self:
w,h = self.font.size(self.value[0:self.pos])
r.x = w-self.vpos
r.w = cs
r.h = h
s.fill(self.style.color,r)
def _setvalue(self,v):
#self.__dict__['value'] = v
self._value = v
self.send(CHANGE)
def event(self,e):
used = None
if e.type == KEYDOWN:
if e.key == K_BACKSPACE:
if self.pos:
self._setvalue(self.value[:self.pos-1] + self.value[self.pos:])
self.pos -= 1
elif e.key == K_DELETE:
if len(self.value) > self.pos:
self._setvalue(self.value[:self.pos] + self.value[self.pos+1:])
elif e.key == K_HOME:
self.pos = 0
elif e.key == K_END:
self.pos = len(self.value)
elif e.key == K_LEFT:
if self.pos > 0: self.pos -= 1
used = True
elif e.key == K_RIGHT:
if self.pos < len(self.value): self.pos += 1
used = True
elif e.key == K_RETURN:
self.next()
elif e.key == K_TAB:
pass
else:
#c = str(e.unicode)
try:
c = (e.unicode).encode('latin-1')
if c:
self._setvalue(self.value[:self.pos] + c + self.value[self.pos:])
self.pos += 1
except: #ignore weird characters
pass
self.repaint()
elif e.type == FOCUS:
self.repaint()
elif e.type == BLUR:
self.repaint()
self.pcls = ""
if self.container.myfocus is self: self.pcls = "focus"
return used
@property
def value(self):
return self._value
@value.setter
def value(self, val):
if (val == None):
val = ""
val = str(val)
self.pos = len(val)
oldval = self._value
self._value = val
if (oldval != val):
self.send(CHANGE)
self.repaint()
class Password(Input):
"""A password input, in which text is rendered with '*' characters."""
def paint(self,s):
hidden="*"
show=len(self.value)*hidden
#print "self.value:",self.value
if self.pos == None: self.pos = len(self.value)
r = pygame.Rect(0,0,self.rect.w,self.rect.h)
cs = 2 #NOTE: should be in a style
w,h = self.font.size(show)
x = w-self.vpos
if x < 0: self.vpos -= -x
if x+cs > s.get_width(): self.vpos += x+cs-s.get_width()
s.blit(self.font.render(show, 1, self.style.color),(-self.vpos,0))
if self.container.myfocus is self:
#w,h = self.font.size(self.value[0:self.pos])
w,h = self.font.size(show[0:self.pos])
r.x = w-self.vpos
r.w = cs
r.h = h
s.fill(self.style.color,r)
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