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
  96     def _readonly_set(self, value):
  97         if value:
  98             self.but_new.hide()
  99             self.but_remove.hide()
 100         else:
 101             self.but_new.show()
 102             self.but_remove.show()
 103
 104     def sig_execute(self,widget=None):
 105         try:
 106             filename = self._view.model.value.get( self.has_filename ) or self._view.model.value['name']
 107             if filename:
 108                 id = int(self._view.model.get(includeid=True)['id'])
 109                 data = rpc.session.rpc_exec_auth('/object', 'execute', 'ir.attachment', 'read', [id])
 110                 if not len(data):
 111                     return None
 112                 ext = os.path.splitext( filename )[1][1:]
 113                 (fileno, fp_name) = tempfile.mkstemp('.'+ext, 'tinyerp_')
 114
 115                 fp = file( fp_name, 'wb+')
 116                 fp.write( base64.decodestring( data[0]['datas'] ) )
 117                 fp.close()
 118                 os.close(fileno)
 119
 120                 printer.printer.print_file( fp_name, ext, preview=True )
 121         except Exception, ex:
 122             common.message(_('Error reading the file'))
 123
 124     def sig_select(self, widget=None):
 125         try:
 126             # Add the filename from the field with the filename attribute in the view
 127             filename = common.file_selection(_('Select a file...'), parent=self._window)
 128             if filename:
 129                 self.model_field.set_client(self._view.model, base64.encodestring(file(filename, 'rb').read()))
 130                 fname = self.attrs.get('fname_widget', False)
 131                 filename = os.path.basename( filename )
 132                 if fname:
 133                     self.parent.value = {fname:filename}
 134                 self._view.model.set( { 'name': filename, 'title' : filename } )
 135                 self._view.display(self._view.model)
 136         except Exception, ex:
 137             common.message(_('Error reading the file'))
 138
 139     def sig_save_as(self, widget=None):
 140         try:
 141             id = int(self._view.model.get(includeid=True)['id'])
 142             data = rpc.session.rpc_exec_auth('/object', 'execute', 'ir.attachment', 'read', [id])
 143             if not len(data):
 144                 return None
 145             # Add the filename from the field with the filename attribute in the view
 146             filename = common.file_selection(
 147                 _('Save As...'),
 148                 parent=self._window,
 149                 action=gtk.FILE_CHOOSER_ACTION_SAVE,
 150                 filename=data[0]['name']
 151             )
 152             if filename:
 153                 fp = file(filename,'wb+')
 154                 fp.write(base64.decodestring(data[0]['datas']))
 155                 fp.close()
 156         except:
 157             common.message(_('Error writing the file!'))
 158
 159     def sig_remove(self, widget=None):
 160         self.model_field.set_client(self._view.model, False)
 161         fname = self.attrs.get('fname_widget', False)
 162         if fname:
 163             self.parent.value = {fname:False}
 164         self.display(self._view.model, self.model_field)
 165
 166     def display(self, model, model_field):
 167         if not model_field:
 168             self.wid_text.set_text('')
 169             return False
 170         super(wid_binary, self).display(model, model_field)
 171         self.model_field = model_field
 172         self.wid_text.set_text(self._size_get(model_field.get(model)))
 173         return True
 174
 175     def _size_get(self, l):
 176         return l and _('%d bytes') % len(l) or ''
 177
 178     def set_value(self, model, model_field):
 179         return
 180
 181     def _color_widget(self):
 182         return self.wid_text
 183
 184 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
 185