import Tix
import tkSimpleDialog
import tkFont


class FontChooser( tkSimpleDialog.Dialog ):
   BASIC = 1
   ALL   = 2

   def __init__( self, parent, defaultfont=None, showstyles=None ):
      self._family       = Tix.StringVar(  value='Ariel'       )
      self._sizeString   = Tix.StringVar(  value='12'          )
      self._weight       = Tix.StringVar(  value=tkFont.NORMAL )
      self._slant        = Tix.StringVar(  value=tkFont.ROMAN  )
      self._isUnderline  = Tix.BooleanVar( value=False         )
      self._isOverstrike = Tix.BooleanVar( value=False         )
      
      if defaultfont:
         self._initialize( defaultfont )
      
      self._currentFont  = tkFont.Font( font=self.getFontTuple() )
      
      self._showStyles   = showstyles
      
      self.sampleText      = None
      
      tkSimpleDialog.Dialog.__init__( self, parent, 'Font Chooser' )

   def _initialize( self, aFont ):
      if not isinstance( aFont, tkFont.Font ):
         aFont = tkFont.Font( font=aFont )
      
      fontOpts = aFont.actual( )
      
      self._family.set(       fontOpts[ 'family'     ] )
      self._sizeString.set(   fontOpts[ 'size'       ] )
      self._weight.set(       fontOpts[ 'weight'     ] )
      self._slant.set(        fontOpts[ 'slant'      ] )
      self._isUnderline.set(  fontOpts[ 'underline'  ] )
      self._isOverstrike.set( fontOpts[ 'overstrike' ] )

   def body( self, master ):
      theRow = 0
      
      Tix.Label( master, text="Font Family" ).grid( row=theRow, column=0 )
      Tix.Label( master, text="Font Size" ).grid( row=theRow, column=2 )
      
      theRow += 1
      
      # Font Families
      fontList = Tix.ComboBox( master, command=self.selectionChanged, dropdown=False, editable=False, selectmode=Tix.IMMEDIATE, variable=self._family )
      fontList.grid( row=theRow, column=0, columnspan=2, sticky=Tix.N+Tix.S+Tix.E+Tix.W, padx=10 )
      first = None
      familyList = list(tkFont.families( ))
      familyList.sort()
      for family in familyList:
         if family[0] == '@':
            continue
         if first is None:
            first = family
         fontList.insert( Tix.END, family )
      fontList.configure( value=first )
      
      # Font Sizes
      sizeList = Tix.ComboBox( master, command=self.selectionChanged, dropdown=False, editable=False, selectmode=Tix.IMMEDIATE, variable=self._sizeString )
      sizeList.grid( row=theRow, column=2, columnspan=2, sticky=Tix.N+Tix.S+Tix.E+Tix.W, padx=10 )
      for size in xrange( 6,31 ):
         sizeList.insert( Tix.END, '%d' % size )
      sizeList.configure( value='9' )
      
      # Styles
      if self._showStyles is not None:
         theRow += 1
         
         if self._showStyles in ( FontChooser.ALL, FontChooser.BASIC ):
            Tix.Label( master, text='Styles', anchor=Tix.W ).grid( row=theRow, column=0, pady=10, sticky=Tix.W )
            
            theRow += 1
            
            Tix.Checkbutton( master, text="bold", command=self.selectionChanged, offvalue='normal', onvalue='bold', variable=self._weight ).grid(row=theRow, column=0)
            Tix.Checkbutton( master, text="italic", command=self.selectionChanged, offvalue='roman', onvalue='italic', variable=self._slant ).grid(row=theRow, column=1)
         
         if self._showStyles == FontChooser.ALL:
            Tix.Checkbutton( master, text="underline", command=self.selectionChanged, offvalue=False, onvalue=True, variable=self._isUnderline ).grid(row=theRow, column=2)
            Tix.Checkbutton( master, text="overstrike", command=self.selectionChanged, offvalue=False, onvalue=True, variable=self._isOverstrike ).grid(row=theRow, column=3)
      
      # Sample Text
      theRow += 1
      
      Tix.Label( master, text='Sample Text', anchor=Tix.W ).grid( row=theRow, column=0, pady=10, sticky=Tix.W )
      
      theRow += 1
      
      self.sampleText = Tix.Text( master, height=11, width=70 )
      self.sampleText.insert( Tix.INSERT, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ\nabcdefghijklmnopqrstuvwxyz', 'fontStyle' )
      self.sampleText.config( state=Tix.DISABLED )
      self.sampleText.tag_config( 'fontStyle', font=self._currentFont )
      self.sampleText.grid( row=theRow, column=0, columnspan=4, padx=10 )

   def apply( self ):
      self.result = self.getFontTuple( )

   def selectionChanged( self, something=None ):
      self._currentFont.configure( family=self._family.get(), size=self._sizeString.get(), weight=self._weight.get(), slant=self._slant.get(), underline=self._isUnderline.get(), overstrike=self._isOverstrike.get() )
      
      if self.sampleText:
         self.sampleText.tag_config( 'fontStyle', font=self._currentFont )

   def getFontTuple( self ):
      family = self._family.get()
      size   = int(self._sizeString.get())
      
      styleList = [ ]
      if self._weight.get() == tkFont.BOLD:
         styleList.append( 'bold' )
      if self._slant.get() == tkFont.ITALIC:
         styleList.append( 'italic' )
      if self._isUnderline.get():
         styleList.append( 'underline' )
      if self._isOverstrike.get():
         styleList.append( 'overstrike' )
         
      if len(styleList) == 0:
         return family, size
      else:
         return family, size, ' '.join( styleList )


def askChooseFont( parent, defaultfont=None, showstyles=True ):
   return FontChooser( parent, defaultfont=defaultfont, showstyles=showstyles ).result



if __name__ == '__main__':
   root = Tix.Tk( )
   font = askChooseFont( root, showstyles=False )

   if font:
      print font