bin/widget/view/form_gtk/binary.py

   1 # -*- encoding: utf-8 -*-
   2 ##############################################################################
   3 #
   4 # Copyright (c) 2004-2008 TINY SPRL. (http://tiny.be) All Rights Reserved.
   5 #
   6 # $Id$
   7 #
   8 # WARNING: This program as such is intended to be used by professional
   9 # programmers who take the whole responsability of assessing all potential
  10 # consequences resulting from its eventual inadequacies and bugs
  11 # End users who are looking for a ready-to-use solution with commercial
  12 # garantees and support are strongly adviced to contract a Free Software
  13 # Service Company
  14 #
  15 # This program is Free Software; you can redistribute it and/or
  16 # modify it under the terms of the GNU General Public License
  17 # as published by the Free Software Foundation; either version 2
  18 # of the License, or (at your option) any later version.
  19 #
  20 # This program is distributed in the hope that it will be useful,
  21 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 # GNU General Public License for more details.
  24 #
  25 # You should have received a copy of the GNU General Public License
  26 # along with this program; if not, write to the Free Software
  27 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  28 #
  29 ##############################################################################
  30
  31 import os
  32 import sys
  33 import tempfile
  34 import time
  35
  36 import base64
  37
  38 import gtk
  39 import gettext
  40
  41 import rpc
  42 import interface
  43 import common
  44 import options
  45 import printer
  46
  47
  48 class wid_binary(interface.widget_interface):
  49     def __init__(self, window, parent, model, attrs={}):
  50         interface.widget_interface.__init__(self, window, parent, model, attrs)
  51
  52         self.widget = gtk.HBox(spacing=5)
  53         self.wid_text = gtk.Entry()
  54         self.wid_text.set_property('activates_default', True)
  55         self.widget.pack_start(self.wid_text, expand=True, fill=True)
  56
  57         self.but_new = gtk.Button()
  58         img = gtk.Image()
  59         img.set_from_stock( 'gtk-execute', gtk.ICON_SIZE_BUTTON )
  60         label = gtk.Label( ('_Open' ))
  61         label.set_use_underline( True )
  62         hbox = gtk.HBox()
  63         hbox.set_spacing( 2 )
  64         hbox.pack_start( img, expand=False, fill=False )
  65         hbox.pack_end( label, expand=False, fill=False )
  66
  67         self.but_new.add( hbox )
  68         self.but_new.connect('clicked', self.sig_execute)
  69         self.widget.pack_start(self.but_new, expand=False, fill=False)
  70
  71         self.but_new = gtk.Button()
  72         img = gtk.Image()
  73         img.set_from_stock( 'gtk-open', gtk.ICON_SIZE_BUTTON )
  74         label = gtk.Label( _('_Select') )
  75         label.set_use_underline( True )
  76         hbox = gtk.HBox()
  77         hbox.set_spacing( 2 )
  78         hbox.pack_start( img, expand=False, fill=False )
  79         hbox.pack_end( label, expand=False, fill=False )
  80
  81         self.but_new.add( hbox )
  82         self.but_new.connect('clicked', self.sig_select)
  83         self.widget.pack_start(self.but_new, expand=False, fill=False)
  84
  85         self.but_save_as = gtk.Button(stock='gtk-save-as')
  86         self.but_save_as.connect('clicked', self.sig_save_as)
  87         self.widget.pack_start(self.but_save_as, expand=False, fill=False)
  88
  89         self.but_remove = gtk.Button(stock='gtk-clear')
  90         self.but_remove.connect('clicked', self.sig_remove)
  91         self.widget.pack_start(self.but_remove, expand=False, fill=False)
  92
  93         self.model_field = False
  94         self.has_filename = attrs.get('filename')
  95         self.data_field_name = attrs.get('name')
  96
  97     def _readonly_set(self, value):
  98         if value:
  99             self.but_new.hide()
 100             self.but_remove.hide()
 101         else:
 102             self.but_new.show()
 103             self.but_remove.show()
 104
 105     def _get_filename(self):
 106         return self._view.model.value.get(self.has_filename) or self._view.model.value.get('name', self.data_field_name)
 107
 108     def sig_execute(self,widget=None):
 109         try:
 110             filename = self._get_filename()
 111             if filename:
 112                 data = self._view.model.value.get(self.data_field_name)
 113                 if not data:
 114                     data = self._view.model.get(self.data_field_name)[self.data_field_name]
 115                     if not data:
 116                         raise Exception(_("Unable to read the file data"))
 117
 118                 ext = os.path.splitext(filename)[1][1:]
 119                 (fileno, fp_name) = tempfile.mkstemp('.'+ext, 'tinyerp_')
 120
 121                 os.write(fileno, base64.decodestring(data))
 122                 os.close(fileno)
 123
 124                 printer.printer.print_file(fp_name, ext, preview=True)
 125         except Exception, ex:
 126             common.message(_('Error reading the file: %s') % str(ex))
 127
 128     def sig_select(self, widget=None):
 129         try:
 130             # Add the filename from the field with the filename attribute in the view
 131             filename = common.file_selection(_('Select a file...'), parent=self._window)
 132             if filename:
 133                 self.model_field.set_client(self._view.model, base64.encodestring(file(filename, 'rb').read()))
 134                 if self.has_filename:
 135                     self._view.model.set({self.has_filename: os.path.basename(filename)})
 136                 self._view.display(self._view.model)
 137         except Exception, ex:
 138             common.message(_('Error reading the file'))
 139
 140     def sig_save_as(self, widget=None):
 141         try:
 142             data = self._view.model.value.get(self.data_field_name)
 143             if not data:
 144                 data = self._view.model.get(self.data_field_name)[self.data_field_name]
 145                 if not data:
 146                     raise Exception(_("Unable to read the file data"))
 147
 148             # Add the filename from the field with the filename attribute in the view
 149             filename = common.file_selection(
 150                 _('Save As...'),
 151                 parent=self._window,
 152                 action=gtk.FILE_CHOOSER_ACTION_SAVE,
 153                 filename=self._get_filename()
 154             )
 155             if filename:
 156                 fp = file(filename,'wb+')
 157                 fp.write(base64.decodestring(data))
 158                 fp.close()
 159         except:
 160             common.message(_('Error writing the file: %s') % str(ex))
 161
 162     def sig_remove(self, widget=None):
 163         self.model_field.set_client(self._view.model, False)
 164         if self.has_filename:
 165             self._view.model.set({self.has_filename: False})
 166         self.display(self._view.model, self.model_field)
 167
 168     def display(self, model, model_field):
 169         if not model_field:
 170             self.wid_text.set_text('')
 171             return False
 172         super(wid_binary, self).display(model, model_field)
 173         self.model_field = model_field
 174         self.wid_text.set_text(model_field.get_client(model) or '')
 175         return True
 176
 177     #def _size_get(self, l):
 178     #    return l and _('%d bytes') % len(l) or ''
 179
 180     def set_value(self, model, model_field):
 181         return
 182
 183     def _color_widget(self):
 184         return self.wid_text
 185
 186 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
 187