ui4/deviceuricombobox.py

   1 # -*- coding: utf-8 -*-
   2 #
   3 # (c) Copyright 2001-2009 Hewlett-Packard Development Company, L.P.
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  18 #
  19 # Author: Don Welch
  20 #
  21
  22 # Std Lib
  23
  24 # Local
  25 from base.g import *
  26 from ui_utils import *
  27 from base import device
  28
  29 # Qt
  30 from PyQt4.QtCore import *
  31 from PyQt4.QtGui import *
  32
  33
  34 DEVICEURICOMBOBOX_TYPE_PRINTER_ONLY = 0
  35 DEVICEURICOMBOBOX_TYPE_FAX_ONLY = 1
  36 DEVICEURICOMBOBOX_TYPE_PRINTER_AND_FAX = 2
  37
  38
  39 class DeviceUriComboBox(QWidget):
  40     def __init__(self, parent):
  41         QWidget.__init__(self, parent)
  42         self.device_uri = ''
  43         self.initial_device = None
  44         self.updating = False
  45         self.typ = DEVICEURICOMBOBOX_TYPE_PRINTER_ONLY
  46         self.filter = None
  47         self.devices = None
  48
  49         self.user_settings = UserSettings()
  50         self.user_settings.load()
  51         self.user_settings.debug()
  52
  53         self.initUi()
  54
  55
  56     def initUi(self):
  57         HBoxLayout = QHBoxLayout(self)
  58         HBoxLayout.setObjectName("HBoxLayout")
  59
  60         self.NameLabel = QLabel(self)
  61         self.NameLabel.setObjectName("NameLabel")
  62         HBoxLayout.addWidget(self.NameLabel)
  63
  64         SpacerItem = QSpacerItem(20, 20, QSizePolicy.Minimum, QSizePolicy.Minimum)
  65         HBoxLayout.addItem(SpacerItem)
  66
  67         self.ComboBox = QComboBox(self)
  68         sizePolicy = QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Preferred)
  69         sizePolicy.setHorizontalStretch(0)
  70         sizePolicy.setVerticalStretch(0)
  71         sizePolicy.setHeightForWidth(self.ComboBox.sizePolicy().hasHeightForWidth())
  72         self.ComboBox.setSizePolicy(sizePolicy)
  73         self.ComboBox.setObjectName("ComboBox")
  74         HBoxLayout.addWidget(self.ComboBox)
  75
  76         self.NameLabel.setText(self.__tr("Device:"))
  77
  78 #        self.connect(self.ComboBox, SIGNAL("currentIndexChanged(int)"),
  79 #            self.ComboBox_currentIndexChanged)
  80
  81         self.connect(self.ComboBox, SIGNAL("currentIndexChanged(const QString &)"),
  82             self.ComboBox_currentIndexChanged)
  83
  84
  85     def setType(self, typ):
  86         if typ in (DEVICEURICOMBOBOX_TYPE_PRINTER_ONLY,
  87                    DEVICEURICOMBOBOX_TYPE_FAX_ONLY,
  88                    DEVICEURICOMBOBOX_TYPE_PRINTER_AND_FAX):
  89             self.typ = typ
  90
  91
  92     def setFilter(self, filter):
  93         self.filter = filter
  94
  95
  96     def setInitialDevice(self, device_uri):
  97         self.initial_device = device_uri
  98
  99
 100     def setDevices(self):
 101         if self.typ == DEVICEURICOMBOBOX_TYPE_PRINTER_ONLY:
 102             be_filter = ['hp']
 103
 104         elif self.typ == DEVICEURICOMBOBOX_TYPE_FAX_ONLY:
 105             be_filter = ['hpfax']
 106             self.NameLabel.setText(self.__tr("Fax Device:"))
 107
 108         else: # DEVICEURICOMBOBOX_TYPE_PRINTER_AND_FAX
 109             be_filter = ['hp', 'hpfax']
 110
 111         self.devices = device.getSupportedCUPSDevices(be_filter, self.filter)
 112         return len(self.devices)
 113
 114
 115     def updateUi(self):
 116         if self.devices is None:
 117             self.setDevices()
 118
 119         self.device_index = {}
 120
 121         if self.devices:
 122             if self.initial_device is None:
 123                 #self.initial_device = user_conf.get('last_used', 'device_uri')
 124                 self.initial_device = self.user_settings.last_used_device_uri
 125
 126             self.updating = True
 127             try:
 128                 k = 0
 129                 for i, d in enumerate(self.devices):
 130                     self.ComboBox.insertItem(i, d)
 131
 132                     if self.initial_device is not None and d == self.initial_device:
 133                         self.initial_device = None
 134                         k = i
 135
 136                 self.ComboBox.setCurrentIndex(-1)
 137             finally:
 138                 self.updating = False
 139
 140             self.ComboBox.setCurrentIndex(k)
 141
 142             if len(self.devices) == 1:
 143                 self.emit(SIGNAL("DeviceUriComboBox_oneDevice"))
 144
 145         else:
 146             self.emit(SIGNAL("DeviceUriComboBox_noDevices"))
 147
 148
 149     def ComboBox_currentIndexChanged(self, t):
 150         if self.updating:
 151             return
 152
 153         self.device_uri = unicode(t)
 154         if self.device_uri:
 155             #user_conf.set('last_used', 'device_uri', self.device_uri)
 156             self.user_settings.last_used_device_uri = self.device_uri
 157             self.user_settings.save()
 158
 159             self.emit(SIGNAL("DeviceUriComboBox_currentChanged"), self.device_uri)
 160
 161
 162     def __tr(self,s,c = None):
 163         return qApp.translate("DeviceUriComboBox",s,c)