gramps/src/gui/dbloader.py
2009-06-19 08:46:17 +00:00

343 lines
12 KiB
Python

#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2005-2007 Donald N. Allingham
# Copyright (C) 2008 Brian G. Matherly
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# $Id:DbLoader.py 9912 2008-01-22 09:17:46Z acraphae $
"""
Handling of loading new/existing databases.
"""
#-------------------------------------------------------------------------
#
# Standard python modules
#
#-------------------------------------------------------------------------
import os
from gettext import gettext as _
import logging
#-------------------------------------------------------------------------
#
# Set up logging
#
#-------------------------------------------------------------------------
_LOG = logging.getLogger(".")
#-------------------------------------------------------------------------
#
# GTK+ modules
#
#-------------------------------------------------------------------------
import gtk
import gobject
#-------------------------------------------------------------------------
#
# GRAMPS modules
#
#-------------------------------------------------------------------------
from cli.grampscli import CLIDbLoader
import const
import Config
import gen.db
import Utils
from gen.plug import PluginManager
from QuestionDialog import (DBErrorDialog, ErrorDialog, QuestionDialog2,
WarningDialog)
import Errors
#-------------------------------------------------------------------------
#
# DbLoader class
#
#-------------------------------------------------------------------------
class DbLoader(CLIDbLoader):
def __init__(self, dbstate, uistate):
CLIDbLoader.__init__(self, dbstate)
self.uistate = uistate
self.import_info = None
def _warn(self, title, warnmessage):
WarningDialog(title, warnmessage)
def _errordialog(self, title, errormessage):
"""
Show the error.
In the GUI, the error is shown, and a return happens
"""
ErrorDialog(title, errormessage)
return 1
def _dberrordialog(self, msg):
DBErrorDialog(str(msg.value))
def _begin_progress(self):
self.uistate.window.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.WATCH))
self.uistate.progress.show()
def _pulse_progress(self, value):
self.uistate.pulse_progressbar(value)
def import_file(self):
# First thing first: import is a batch transaction
# so we will lose the undo history. Warn the user.
if self.dbstate.db.get_number_of_people() > 0:
warn_dialog = QuestionDialog2(
_('Undo history warning'),
_('Proceeding with import will erase the undo history '
'for this session. In particular, you will not be able '
'to revert the import or any changes made prior to it.\n\n'
'If you think you may want to revert the import, '
'please stop here and backup your database.'),
_('_Proceed with import'), _('_Stop'),
self.uistate.window)
if not warn_dialog.run():
return False
pmgr = PluginManager.get_instance()
import_dialog = gtk.FileChooserDialog(_('GRAMPS: Import database'),
self.uistate.window,
gtk.FILE_CHOOSER_ACTION_OPEN,
(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,
'gramps-import', gtk.RESPONSE_OK))
import_dialog.set_local_only(False)
# Always add automatic (match all files) filter
add_all_files_filter(import_dialog) # *
# Add more file type selections for available importers
for plugin in pmgr.get_import_plugins():
file_filter = gtk.FileFilter()
name = "%s (.%s)" % (plugin.get_name(), plugin.get_extension())
file_filter.set_name(name)
file_filter.add_pattern("*.%s" % plugin.get_extension())
file_filter.add_pattern(plugin.get_extension().capitalize())
import_dialog.add_filter(file_filter)
(box, type_selector) = format_maker()
import_dialog.set_extra_widget(box)
# Suggested folder: try last open file, import, then last export,
# then home.
default_dir = Config.get(Config.RECENT_IMPORT_DIR)
if len(default_dir)<=1:
default_dir = get_default_dir()
import_dialog.set_current_folder(default_dir)
while True:
response = import_dialog.run()
if response == gtk.RESPONSE_CANCEL:
break
elif response == gtk.RESPONSE_OK:
filename = Utils.get_unicode_path(import_dialog.get_filename())
if self.check_errors(filename):
# displays errors if any
continue
(the_path, the_file) = os.path.split(filename)
Config.set(Config.RECENT_IMPORT_DIR, the_path)
extension = type_selector.get_value()
if extension == 'auto':
# Guess the file format based on the file extension.
# This will get the lower case extension without a period,
# or an empty string.
extension = os.path.splitext(filename)[-1][1:].lower()
for plugin in pmgr.get_import_plugins():
if extension == plugin.get_extension():
self.do_import(import_dialog,
plugin.get_import_function(),
filename)
return True
# Finally, we give up and declare this an unknown format
ErrorDialog(
_("Could not open file: %s") % filename,
_('File type "%s" is unknown to GRAMPS.\n\n'
'Valid types are: GRAMPS database, GRAMPS XML, '
'GRAMPS package, GEDCOM, and others.') % extension)
import_dialog.destroy()
return False
def check_errors(self, filename):
"""
Run common error checks and return True if any found.
In this process, a warning dialog can pop up.
"""
if not isinstance(filename, basestring):
return True
filename = os.path.normpath(os.path.abspath(filename))
if len(filename) == 0:
return True
elif os.path.isdir(filename):
ErrorDialog(
_('Cannot open file'),
_('The selected file is a directory, not a file.\n'))
return True
elif os.path.exists(filename):
if not os.access(filename, os.R_OK):
ErrorDialog(
_('Cannot open file'),
_('You do not have read access to the selected file.'))
return True
else:
try:
f = file(filename,'w')
f.close()
os.remove(filename)
except IOError:
ErrorDialog(
_('Cannot create file'),
_('You do not have write access to the selected file.'))
return True
return False
def do_import(self, dialog, importer, filename):
self.import_info = None
dialog.destroy()
self.uistate.window.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.WATCH))
self.uistate.progress.show()
try:
#an importer can return an object with info, object.info_text()
#returns that info. Otherwise None is set to import_info
self.import_info = importer(self.dbstate.db, filename,
self.uistate.pulse_progressbar)
dirname = os.path.dirname(filename) + os.path.sep
Config.set(Config.RECENT_IMPORT_DIR, dirname)
except UnicodeError, msg:
ErrorDialog(
_("Could not import file: %s") % filename,
_("This file incorrectly identifies its character "
"set, so it cannot be accurately imported. Please fix the "
"encoding, and import again") + "\n\n %s" % msg)
except Exception:
_LOG.error("Failed to import database.", exc_info=True)
def import_info_text(self):
"""
On import the importer can construct an info object about the import.
If so, this method will return this text, otherwise the empty string
is returned
"""
if self.import_info is None:
return u""
return self.import_info.info_text()
#-------------------------------------------------------------------------
#
# default dir selection
#
#-------------------------------------------------------------------------
def get_default_dir():
# Suggested folder: try last open file, last import, last export,
# then home.
default_dir = os.path.dirname(Config.get(Config.RECENT_FILE))
if default_dir:
default_dir += os.path.sep
if len(default_dir)<=1:
default_dir = Config.get(Config.RECENT_IMPORT_DIR)
if len(default_dir)<=1:
default_dir = Config.get(Config.RECENT_EXPORT_DIR)
if len(default_dir)<=1:
default_dir = '~/'
else:
default_dir = "~/"
return default_dir
#-------------------------------------------------------------------------
#
# FileChooser filters: what to show in the file chooser
#
#-------------------------------------------------------------------------
def add_all_files_filter(chooser):
"""
Add an all-permitting filter to the file chooser dialog.
"""
mime_filter = gtk.FileFilter()
mime_filter.set_name(_('All files'))
mime_filter.add_pattern('*')
chooser.add_filter(mime_filter)
#-------------------------------------------------------------------------
#
# Format selectors: explictly set the format of the file
#
#-------------------------------------------------------------------------
class GrampsFormatWidget(gtk.ComboBox):
def __init__(self):
gtk.ComboBox.__init__(self, model=None)
def set(self, format_list):
self.store = gtk.ListStore(gobject.TYPE_STRING)
self.set_model(self.store)
cell = gtk.CellRendererText()
self.pack_start(cell, True)
self.add_attribute(cell, 'text', 0)
self.format_list = format_list
for format, label in format_list:
self.store.append(row=[label])
self.set_active(False)
def get_value(self):
active = self.get_active()
if active < 0:
return None
return self.format_list[active][0]
def format_maker():
"""
A factory function making format selection widgets.
Accepts a list of formats to include into selector.
The auto selection is always added as the first one.
The returned box contains both the label and the selector.
"""
pmgr = PluginManager.get_instance()
format_list = [ ('auto', _('Automatically detected')) ]
for plugin in pmgr.get_import_plugins():
format_list.append( (plugin.get_extension(), plugin.get_name()) )
type_selector = GrampsFormatWidget()
type_selector.set(format_list)
box = gtk.HBox()
label = gtk.Label(_('Select file _type:'))
label.set_use_underline(True)
label.set_mnemonic_widget(type_selector)
box.pack_start(label, expand=False, fill=False, padding=6)
box.add(type_selector)
box.show_all()
return (box, type_selector)