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"""
"""
from const import *
import table
import basic, button
class Select(table.Table):
"""A select input.
<pre>Select(value=None)</pre>
<dl>
<dt>value<dd>initial value
</dl>
<strong>Example</strong>
<code>
w = Select(value="goats")
w.add("Cats","cats")
w.add("Goats","goats")
w.add("Dogs","Dogs")
w.value = 'dogs' #changes the value from goats to dogs
</code>
"""
def __init__(self,value=None,**params):
params.setdefault('cls','select')
table.Table.__init__(self,**params)
self.top_selected = button.Button(cls=self.cls+".selected")
table.Table.add(self,self.top_selected) #,hexpand=1,vexpand=1)#,0,0)
self.top_selected.value = basic.Label(" ",cls=self.cls+".option.label")
self.top_arrow = button.Button(basic.Image(self.style.arrow),cls=self.cls+".arrow")
table.Table.add(self,self.top_arrow) #,hexpand=1,vexpand=1) #,1,0)
self.options = table.Table() #style={'border':3})
self.options_first = None
self.options.tr()
self.spacer_top = basic.Spacer(0,0)
self.options.add(self.spacer_top)
self.options.tr()
self._options = table.Table(cls=self.cls+".options")
self.options.add(self._options)
self.options.tr()
self.spacer_bottom = basic.Spacer(0,0)
self.options.add(self.spacer_bottom)
self.options.connect(BLUR,self._close,None)
self.spacer_top.connect(CLICK,self._close,None)
self.spacer_bottom.connect(CLICK,self._close,None)
self.values = []
self.value = value
def resize(self,width=None,height=None):
max_w,max_h = 0,0
for w in self._options.widgets:
w.rect.w,w.rect.h = w.resize()
max_w,max_h = max(max_w,w.rect.w),max(max_h,w.rect.h)
#xt,xr,xb,xl = self.top_selected.getspacing()
self.top_selected.style.width = max_w #+ xl + xr
self.top_selected.style.height = max_h #+ xt + xb
self.top_arrow.connect(CLICK,self._open,None)
self.top_selected.connect(CLICK,self._open,None)
w,h = table.Table.resize(self,width,height)
self.spacer_top.style.width, self.spacer_top.style.height = w,h
self.spacer_bottom.style.width, self.spacer_bottom.style.height = w,h
self._options.style.width = w
#HACK: sort of, but not a big one..
self._options.resize()
return w,h
def _open(self,value):
sh = self.rect.h #spacer height
opts = self.options
self.spacer_top.style.height = 0
self.spacer_bottom.style.height = 0
opts.rect.w, opts.rect.h = opts.resize()
h = opts.rect.h
y = self.rect.y
c = self.container
while hasattr(c,'container'):
y += c.rect.y
if c.container == None: break
c = c.container
if y + sh + h <= c.rect.h: #down
self.spacer_top.style.height = sh
dy = self.rect.y
else: #up
self.spacer_bottom.style.height = sh
dy = self.rect.y - h
opts.rect.w, opts.rect.h = opts.resize()
self.container.open(opts,self.rect.x,dy)
self.options_first.focus()
def _close(self,value):
# print 'my close!'
self.options.close()
self.top_selected.focus()
# self.blur()
# self.focus()
# print self.container.myfocus == self
def _setvalue(self,value):
self.value = value._value
if hasattr(self,'container'):
#self.chsize()
#HACK: improper use of resize()
#self.resize() #to recenter the new value, etc.
pass
# #self._resize()
self._close(None)
#self.repaint() #this will happen anyways
def __setattr__(self,k,v):
mywidget = None
if k == 'value':
for w in self.values:
if w._value == v:
mywidget = w
_v = self.__dict__.get(k,NOATTR)
self.__dict__[k]=v
if k == 'value' and _v != NOATTR and _v != v:
self.send(CHANGE)
self.repaint()
if k == 'value':
if not mywidget:
mywidget = basic.Label(" ",cls=self.cls+".option.label")
self.top_selected.value = mywidget
def add(self,w,value=None):
"""Add a widget, value item to the Select.
<pre>Select.add(widget,value=None)</pre>
<dl>
<dt>widget<dd>Widget or string to represent the item
<dt>value<dd>value for this item
</dl>
<strong>Example</strong>
<code>
w = Select()
w.add("Goat") #adds a Label
w.add("Goat","goat") #adds a Label with the value goat
w.add(gui.Label("Cuzco"),"goat") #adds a Label with value goat
</code>
"""
if type(w) == str: w = basic.Label(w,cls=self.cls+".option.label")
w.style.align = -1
b = button.Button(w,cls=self.cls+".option")
b.connect(CLICK,self._setvalue,w)
#b = w
#w.cls = self.cls+".option"
#w.cls = self.cls+".option"
self._options.tr()
self._options.add(b) #,align=-1)
if self.options_first == None:
self.options_first = b
#self._options.td(b, align=-1, cls=self.cls+".option")
#self._options.td(_List_Item(w,value=value),align=-1)
if value != None: w._value = value
else: w._value = w
if self.value == w._value:
self.top_selected.value = w
self.values.append(w)
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