/
sugarcommander.py
executable file
·706 lines (613 loc) · 29.3 KB
/
sugarcommander.py
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# SugarCommander.py
# Copyright (C) 2010 James D. Simmons <nicestep@gmail.com>
#
# 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import logging
import os
import time
import gtk
import pango
import pygame
import zipfile
from sugar import mime
from sugar.activity import activity
from sugar.datastore import datastore
from sugar.graphics.alert import NotifyAlert
from sugar.graphics import style
from gettext import gettext as _
import gobject
import dbus
COLUMN_TITLE = 0
COLUMN_SIZE = 1
COLUMN_MIME = 2
COLUMN_JOBJECT = 3
ARBITRARY_LARGE_HEIGHT = 10000
JPEG_QUALITY = 80
DS_DBUS_SERVICE = 'org.laptop.sugar.DataStore'
DS_DBUS_INTERFACE = 'org.laptop.sugar.DataStore'
DS_DBUS_PATH = '/org/laptop/sugar/DataStore'
_logger = logging.getLogger('sugar-commander')
class SugarCommander(activity.Activity):
def __init__(self, handle, create_jobject=True):
"The entry point to the Activity"
activity.Activity.__init__(self, handle)
self.selected_journal_entry = None
self.selected_path = None
self.update_log_entries = ''
self.close_requested = False
canvas = gtk.Notebook()
canvas.props.show_border = True
canvas.props.show_tabs = True
canvas.show()
self.ls_journal = gtk.ListStore(gobject.TYPE_STRING,
gobject.TYPE_UINT64,
gobject.TYPE_STRING,
gobject.TYPE_PYOBJECT)
self.tv_journal = gtk.TreeView(self.ls_journal)
self.tv_journal.set_rules_hint(True)
self.tv_journal.set_search_column(COLUMN_TITLE)
self.selection_journal = self.tv_journal.get_selection()
self.selection_journal.set_mode(gtk.SELECTION_SINGLE)
self.selection_journal.connect("changed", self.selection_journal_cb)
renderer = gtk.CellRendererText()
renderer.set_property('wrap-mode', gtk.WRAP_WORD)
renderer.set_property('wrap-width', 500)
renderer.set_property('width', 500)
self.col_journal = gtk.TreeViewColumn(_('Title'), renderer,
text=COLUMN_TITLE)
self.col_journal.set_sort_column_id(COLUMN_TITLE)
self.tv_journal.append_column(self.col_journal)
size_renderer = gtk.CellRendererText()
size_renderer.set_property('width', 100)
size_renderer.set_property('alignment', pango.ALIGN_RIGHT)
size_renderer.set_property('xalign', 0.8)
self.col_size = gtk.TreeViewColumn(_('Size (KB)'), size_renderer,
text=COLUMN_SIZE)
self.col_size.set_sort_column_id(COLUMN_SIZE)
self.tv_journal.append_column(self.col_size)
mime_renderer = gtk.CellRendererText()
mime_renderer.set_property('width', 200)
self.col_mime = gtk.TreeViewColumn(_('MIME Type'), mime_renderer,
text=COLUMN_MIME)
self.col_mime.set_sort_column_id(COLUMN_MIME)
self.tv_journal.append_column(self.col_mime)
self.list_scroller_journal = gtk.ScrolledWindow(
hadjustment=None, vadjustment=None)
self.list_scroller_journal.set_policy(
gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
self.list_scroller_journal.add(self.tv_journal)
label_attributes = pango.AttrList()
label_attributes.insert(pango.AttrSize(14000, 0, -1))
label_attributes.insert(pango.AttrForeground(65535, 65535, 65535, 0, -1))
tab1_label = gtk.Label(_("Journal"))
tab1_label.set_attributes(label_attributes)
tab1_label.show()
self.tv_journal.show()
self.list_scroller_journal.show()
column_table = gtk.Table(rows=1, columns=2, homogeneous = False)
image_table = gtk.Table(rows=2, columns=2, homogeneous=False)
self.image = gtk.Image()
image_table.attach(self.image, 0, 2, 0, 1, xoptions=gtk.FILL|gtk.SHRINK,
yoptions=gtk.FILL|gtk.SHRINK, xpadding=10, ypadding=10)
self.dimension_label = gtk.Label("")
image_table.attach(self.dimension_label, 0, 2, 1, 2, xoptions=gtk.SHRINK,
yoptions=gtk.SHRINK, xpadding=10, ypadding=10)
self.btn_resize = gtk.Button(_("Resize To Width"))
self.btn_resize.connect('button_press_event',
self.resize_button_press_event_cb)
image_table.attach(self.btn_resize, 0, 1, 2, 3, xoptions=gtk.SHRINK,
yoptions=gtk.SHRINK, xpadding=10, ypadding=10)
self.resize_width_entry = gtk.Entry(max=4)
image_table.attach(self.resize_width_entry, 1, 2, 2, 3,
xoptions=gtk.SHRINK,
yoptions=gtk.SHRINK, xpadding=10, ypadding=10)
self.resize_width_entry.set_text('600')
self.resize_width_entry.connect('key_press_event',
self.resize_key_press_event_cb)
self.btn_save = gtk.Button(_("Save"))
self.btn_save.connect('button_press_event',
self.save_button_press_event_cb)
image_table.attach(self.btn_save, 0, 1, 3, 4, xoptions=gtk.SHRINK,
yoptions=gtk.SHRINK, xpadding=10, ypadding=10)
self.btn_save.props.sensitive = False
self.btn_save.show()
self.btn_delete = gtk.Button(_("Delete"))
self.btn_delete.connect('button_press_event',
self.delete_button_press_event_cb)
image_table.attach(self.btn_delete, 1, 2, 3, 4, xoptions=gtk.SHRINK,
yoptions=gtk.SHRINK, xpadding=10, ypadding=10)
self.btn_delete.props.sensitive = False
self.btn_delete.show()
entry_table = gtk.Table(rows=3, columns=2,
homogeneous=False)
title_label = gtk.Label(_("Title"))
entry_table.attach(title_label, 0, 1, 0, 1,
xoptions=gtk.SHRINK,
yoptions=gtk.SHRINK,
xpadding=10, ypadding=10)
title_label.show()
self.title_entry = gtk.Entry(max=0)
entry_table.attach(self.title_entry, 1, 2, 0, 1,
xoptions=gtk.FILL|gtk.SHRINK,
yoptions=gtk.SHRINK, xpadding=10, ypadding=10)
self.title_entry.connect('key_press_event',
self.key_press_event_cb)
self.title_entry.show()
description_label = gtk.Label(_("Description"))
entry_table.attach(description_label, 0, 1, 1, 2,
xoptions=gtk.SHRINK,
yoptions=gtk.SHRINK,
xpadding=10, ypadding=10)
description_label.show()
self.description_textview = gtk.TextView()
self.description_textview.set_wrap_mode(gtk.WRAP_WORD)
entry_table.attach(self.description_textview, 1, 2, 1, 2,
xoptions=gtk.EXPAND|gtk.FILL|gtk.SHRINK,
yoptions=gtk.EXPAND|gtk.FILL|gtk.SHRINK,
xpadding=10, ypadding=10)
self.description_textview.props.accepts_tab = False
self.description_textview.connect('key_press_event',
self.key_press_event_cb)
self.description_textview.show()
tags_label = gtk.Label(_("Tags"))
entry_table.attach(tags_label, 0, 1, 2, 3,
xoptions=gtk.SHRINK,
yoptions=gtk.SHRINK,
xpadding=10, ypadding=10)
tags_label.show()
self.tags_textview = gtk.TextView()
self.tags_textview.set_wrap_mode(gtk.WRAP_WORD)
entry_table.attach(self.tags_textview, 1, 2, 2, 3,
xoptions=gtk.FILL,
yoptions=gtk.EXPAND|gtk.FILL,
xpadding=10, ypadding=10)
self.tags_textview.props.accepts_tab = False
self.tags_textview.connect('key_press_event',
self.key_press_event_cb)
self.tags_textview.show()
entry_table.show()
scroller_image = gtk.ScrolledWindow(
hadjustment=None, vadjustment=None)
scroller_image.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
scroller_image.add_with_viewport(image_table)
scroller_image.show()
self.scroller_entry = gtk.ScrolledWindow(
hadjustment=None, vadjustment=None)
self.scroller_entry.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
self.scroller_entry.add_with_viewport(entry_table)
self.scroller_entry.show()
column_table.attach(scroller_image, 0, 1, 0, 1,
xoptions=gtk.FILL|gtk.EXPAND|gtk.SHRINK,
yoptions=gtk.FILL|gtk.EXPAND|gtk.SHRINK,
xpadding=10, ypadding=10)
column_table.attach(self.scroller_entry, 1, 2, 0, 1,
xoptions=gtk.FILL|gtk.EXPAND|gtk.SHRINK,
yoptions=gtk.FILL|gtk.EXPAND|gtk.SHRINK,
xpadding=10, ypadding=10)
image_table.show()
column_table.show()
self.btn_resize.hide()
self.resize_width_entry.hide()
vbox = gtk.VBox(homogeneous=True, spacing=5)
vbox.pack_start(column_table)
vbox.pack_end(self.list_scroller_journal)
canvas.append_page(vbox, tab1_label)
self._filechooser = gtk.FileChooserWidget(
action=gtk.FILE_CHOOSER_ACTION_OPEN, backend=None)
self._filechooser.set_current_folder("/media")
self.copy_button = gtk.Button(_("Copy File To The Journal"))
self.copy_button.connect('clicked', self.create_journal_entry)
self.copy_button.show()
self._filechooser.set_extra_widget(self.copy_button)
preview = gtk.Image()
self._filechooser.set_preview_widget(preview)
self._filechooser.connect("update-preview",
self.update_preview_cb, preview)
tab2_label = gtk.Label(_("Files"))
tab2_label.set_attributes(label_attributes)
tab2_label.show()
canvas.append_page(self._filechooser, tab2_label)
self.set_canvas(canvas)
self.show_all()
self.btn_resize.hide()
self.resize_width_entry.hide()
self.dimension_label.hide()
toolbox = activity.ActivityToolbox(self)
activity_toolbar = toolbox.get_activity_toolbar()
activity_toolbar.keep.props.visible = False
activity_toolbar.share.props.visible = False
self.set_toolbox(toolbox)
toolbox.show()
self.load_journal_table()
bus = dbus.SessionBus()
remote_object = bus.get_object(DS_DBUS_SERVICE, DS_DBUS_PATH)
_datastore = dbus.Interface(remote_object, DS_DBUS_INTERFACE)
_datastore.connect_to_signal('Created', self.datastore_created_cb)
_datastore.connect_to_signal('Updated', self.datastore_updated_cb)
_datastore.connect_to_signal('Deleted', self.datastore_deleted_cb)
self.selected_journal_entry = None
def update_preview_cb(self, file_chooser, preview):
filename = file_chooser.get_preview_filename()
try:
file_mimetype = mime.get_for_file(filename)
if file_mimetype.startswith('image/') and file_mimetype != 'image/vnd.djvu':
pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(filename,
style.zoom(320), style.zoom(240))
preview.set_from_pixbuf(pixbuf)
have_preview = True
elif file_mimetype == 'application/x-cbz':
fname = self.extract_image(filename)
pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(fname,
style.zoom(320), style.zoom(240))
preview.set_from_pixbuf(pixbuf)
have_preview = True
os.remove(fname)
else:
have_preview = False
except:
have_preview = False
file_chooser.set_preview_widget_active(have_preview)
return
def key_press_event_cb(self, entry, event):
self.btn_save.props.sensitive = True
def resize_key_press_event_cb(self, entry, event):
keyname = gtk.gdk.keyval_name(event.keyval)
if ((keyname < '0' or keyname > '9') and keyname != 'BackSpace'
and keyname != 'Left' and keyname != 'Right'
and keyname != 'KP_Left' and keyname != 'KP_Right'
and keyname != 'Delete' and keyname != 'End'
and keyname != 'KP_End' and keyname != 'Home'
and keyname != 'KP_Home' and keyname != 'KP_Delete'):
return True
else:
return False
def resize_button_press_event_cb(self, entry, event):
jobject = self.selected_journal_entry
filename = jobject.get_file_path()
im = pygame.image.load(filename)
image_width, image_height = im.get_size()
resize_to_width = int(self.resize_width_entry.get_text())
if (image_width < resize_to_width):
self.alert(_('Error'), _('Image cannot be made larger, only smaller.'))
return
tempfile = os.path.join(self.get_activity_root(), 'instance',
'tmp%i' % time.time())
try:
scaled_pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(filename, resize_to_width, ARBITRARY_LARGE_HEIGHT)
scaled_pixbuf.save(tempfile, "jpeg", {"quality":"%d" % JPEG_QUALITY})
except:
print 'File could not be converted'
return
jobject.file_path = tempfile
jobject.metadata['mime_type'] = 'image/jpeg'
im = pygame.image.load(tempfile)
image_width, image_height = im.get_size()
self.dimension_label.set_text(str(image_width) + "x" + str(image_height))
self.dimension_label.show()
datastore.write(jobject, update_mtime=False,
reply_handler=self.datastore_write_cb,
error_handler=self.datastore_write_error_cb)
title = jobject.metadata.get('title', None)
self.update_log_entries += '\n' + _('Entry %s resized.') % title
def save_button_press_event_cb(self, entry, event):
self.update_entry()
def delete_button_press_event_cb(self, entry, event):
datastore.delete(self.selected_journal_entry.object_id)
def datastore_created_cb(self, uid):
new_jobject = datastore.get(uid)
iter = self.ls_journal.append()
title = new_jobject.metadata['title']
self.ls_journal.set(iter, COLUMN_TITLE, title)
mime = new_jobject.metadata['mime_type']
self.ls_journal.set(iter, COLUMN_MIME, mime)
self.ls_journal.set(iter, COLUMN_JOBJECT, new_jobject)
size = self.get_size(new_jobject) / 1024
self.ls_journal.set(iter, COLUMN_SIZE, size)
def datastore_updated_cb(self, uid):
new_jobject = datastore.get(uid)
iter = self.ls_journal.get_iter_first()
for row in self.ls_journal:
jobject = row[COLUMN_JOBJECT]
if jobject.object_id == uid:
title = jobject.metadata['title']
self.ls_journal.set(iter, COLUMN_TITLE, title)
mime = jobject.metadata['mime_type']
self.ls_journal.set(iter, COLUMN_MIME, mime)
size = self.get_size(jobject) / 1024
self.ls_journal.set(iter, COLUMN_SIZE, size)
iter = self.ls_journal.iter_next(iter)
object_id = self.selected_journal_entry.object_id
if object_id == uid:
self.set_form_fields(new_jobject)
def datastore_deleted_cb(self, uid):
save_path = self.selected_path
iter = self.ls_journal.get_iter_first()
for row in self.ls_journal:
jobject = row[COLUMN_JOBJECT]
if jobject.object_id == uid:
title = jobject.metadata.get('title', None)
self.update_log_entries += '\n' + _('Entry %s deleted.') % title
self.ls_journal.remove(iter)
break
iter = self.ls_journal.iter_next(iter)
try:
self.selection_journal.select_path(save_path)
self.tv_journal.grab_focus()
except:
self.title_entry.set_text('')
description_textbuffer = self.description_textview.get_buffer()
description_textbuffer.set_text('')
tags_textbuffer = self.tags_textview.get_buffer()
tags_textbuffer.set_text('')
self.btn_save.props.sensitive = False
self.btn_delete.props.sensitive = False
self.image.clear()
self.image.show()
def update_entry(self):
needs_update = False
if self.selected_journal_entry is None:
return
object_id = self.selected_journal_entry.object_id
jobject = datastore.get(object_id)
old_title = jobject.metadata.get('title', None)
if old_title != self.title_entry.props.text:
jobject.metadata['title'] = self.title_entry.props.text
jobject.metadata['title_set_by_user'] = '1'
self.update_log_entries += '\n' + _('Entry title changed to %s') % self.title_entry.props.text
needs_update = True
old_tags = jobject.metadata.get('tags', None)
new_tags = self.tags_textview.props.buffer.props.text
if old_tags != new_tags:
jobject.metadata['tags'] = new_tags
self.update_log_entries += '\n' + _('Entry %s tags updated.') % self.title_entry.props.text
needs_update = True
old_description = jobject.metadata.get('description', None)
new_description = self.description_textview.props.buffer.props.text
if old_description != new_description:
jobject.metadata['description'] = new_description
self.update_log_entries += '\n' + _('Entry %s description updated.') % self.title_entry.props.text
needs_update = True
if needs_update:
datastore.write(jobject, update_mtime=False,
reply_handler=self.datastore_write_cb,
error_handler=self.datastore_write_error_cb)
self.btn_save.props.sensitive = False
def datastore_write_cb(self):
pass
def datastore_write_error_cb(self, error):
logging.error('sugarcommander.datastore_write_error_cb: %r' % error)
def close(self, skip_save=False):
"Override the close method so we don't try to create a Journal entry."
activity.Activity.close(self, False)
def write_file(self, filename):
"Save meta data for the file."
# if self.close_requested:
old_description = self.metadata.get('description', 'Sugar Commander log:')
new_description = old_description + self.update_log_entries
self.metadata['description'] = new_description
self.metadata['mime_type'] = 'text/plain'
f = open(filename, 'w')
try:
f.write(new_description)
finally:
f.close()
self.update_log_entries = ''
def can_close(self):
self.close_requested = True
return True
def selection_journal_cb(self, selection):
self.btn_delete.props.sensitive = True
tv = selection.get_tree_view()
model = tv.get_model()
sel = selection.get_selected()
if sel:
model, iter = sel
jobject = model.get_value(iter,COLUMN_JOBJECT)
jobject = datastore.get(jobject.object_id)
self.selected_journal_entry = jobject
self.set_form_fields(jobject)
if jobject.metadata['mime_type'] .startswith('image/') \
and jobject.metadata['mime_type'] != 'image/vnd.djvu':
self.btn_resize.show()
self.resize_width_entry.show()
filename = jobject.get_file_path()
im = pygame.image.load(filename)
image_width, image_height = im.get_size()
self.dimension_label.set_text(str(image_width) + "x" + str(image_height))
self.dimension_label.show()
else:
self.btn_resize.hide()
self.resize_width_entry.hide()
self.dimension_label.hide()
self.selected_path = model.get_path(iter)
def set_form_fields(self, jobject):
self.title_entry.set_text(jobject.metadata['title'])
description_textbuffer = self.description_textview.get_buffer()
if jobject.metadata.has_key('description'):
description_textbuffer.set_text(jobject.metadata['description'])
else:
description_textbuffer.set_text('')
tags_textbuffer = self.tags_textview.get_buffer()
if jobject.metadata.has_key('tags'):
tags_textbuffer.set_text(jobject.metadata['tags'])
else:
tags_textbuffer.set_text('')
self.create_preview(jobject.object_id)
def create_preview(self, object_id):
jobject = datastore.get(object_id)
if jobject.metadata.has_key('preview'):
preview = jobject.metadata['preview']
if preview is None or preview == '' or preview == 'None':
if jobject.metadata['mime_type'] .startswith('image/') and \
jobject.metadata['mime_type'] != 'image/vnd.djvu':
filename = jobject.get_file_path()
self.show_image(filename)
return
if jobject.metadata['mime_type'] == 'application/x-cbz':
filename = jobject.get_file_path()
fname = self.extract_image(filename)
self.show_image(fname)
os.remove(fname)
return
self.show_image('xoimage.jpg')
return
if jobject.metadata.has_key('preview') and \
len(jobject.metadata['preview']) > 4:
if jobject.metadata['preview'][1:4] == 'PNG':
preview_data = jobject.metadata['preview']
else:
import base64
preview_data = base64.b64decode(jobject.metadata['preview'])
loader = gtk.gdk.PixbufLoader()
loader.write(preview_data)
scaled_buf = loader.get_pixbuf()
loader.close()
self.image.set_from_pixbuf(scaled_buf)
self.image.show()
else:
self.image.clear()
self.image.show()
def load_journal_table(self):
self.btn_save.props.sensitive = False
self.btn_delete.props.sensitive = False
ds_mounts = datastore.mounts()
mountpoint_id = None
if len(ds_mounts) == 1 and ds_mounts[0]['id'] == 1:
pass
else:
for mountpoint in ds_mounts:
id = mountpoint['id']
uri = mountpoint['uri']
if uri.startswith('/home'):
mountpoint_id = id
query = {}
if mountpoint_id is not None:
query['mountpoints'] = [ mountpoint_id ]
ds_objects, num_objects = datastore.find(query, properties=['uid',
'title', 'mime_type'])
self.ls_journal.clear()
for i in xrange (0, num_objects, 1):
iter = self.ls_journal.append()
title = ds_objects[i].metadata['title']
self.ls_journal.set(iter, COLUMN_TITLE, title)
mime = ds_objects[i].metadata['mime_type']
self.ls_journal.set(iter, COLUMN_MIME, mime)
self.ls_journal.set(iter, COLUMN_JOBJECT, ds_objects[i])
size = self.get_size(ds_objects[i]) / 1024
self.ls_journal.set(iter, COLUMN_SIZE, size)
self.ls_journal.set_sort_column_id(COLUMN_TITLE, gtk.SORT_ASCENDING)
v_adjustment = self.list_scroller_journal.get_vadjustment()
v_adjustment.value = 0
def get_size(self, jobject):
"""Return the file size for a Journal object."""
logging.debug('get_file_size %r', jobject.object_id)
path = jobject.get_file_path()
if not path:
return 0
return os.stat(path).st_size
def create_journal_entry(self, widget, data=None):
filename = self._filechooser.get_filename()
journal_entry = datastore.create()
journal_entry.metadata['title'] = self.make_new_filename(filename)
journal_entry.metadata['title_set_by_user'] = '1'
journal_entry.metadata['keep'] = '0'
file_mimetype = mime.get_for_file(filename)
if not file_mimetype is None:
journal_entry.metadata['mime_type'] = file_mimetype
journal_entry.metadata['buddies'] = ''
if file_mimetype.startswith('image/') and file_mimetype != 'image/vnd.djvu':
preview = self.create_preview_metadata(filename)
elif file_mimetype == 'application/x-cbz':
fname = self.extract_image(filename)
preview = self.create_preview_metadata(fname)
os.remove(fname)
else:
preview = ''
if not preview == '':
journal_entry.metadata['preview'] = dbus.ByteArray(preview)
else:
journal_entry.metadata['preview'] = ''
journal_entry.file_path = filename
datastore.write(journal_entry)
self.update_log_entries += '\n' + _('File %s copied to the Journal.') % filename
self.alert(_('Success'), _('%s added to Journal.')
% self.make_new_filename(filename))
def alert(self, title, text=None):
alert = NotifyAlert(timeout=20)
alert.props.title = title
alert.props.msg = text
self.add_alert(alert)
alert.connect('response', self.alert_cancel_cb)
alert.show()
def alert_cancel_cb(self, alert, response_id):
self.remove_alert(alert)
def show_image(self, filename):
"display a resized image in a preview"
scaled_buf = gtk.gdk.pixbuf_new_from_file_at_size(filename,
style.zoom(300), style.zoom(225))
self.image.set_from_pixbuf(scaled_buf)
self.image.show()
def extract_image(self, filename):
zf = zipfile.ZipFile(filename, 'r')
image_files = zf.namelist()
image_files.sort()
file_to_extract = image_files[0]
extract_new_filename = self.make_new_filename(file_to_extract)
if extract_new_filename is None or extract_new_filename == '':
# skip over directory name if the images are in a subdirectory.
file_to_extract = image_files[1]
extract_new_filename = self.make_new_filename(file_to_extract)
if len(image_files) > 0:
if self.save_extracted_file(zf, file_to_extract):
fname = os.path.join(self.get_activity_root(), 'instance',
extract_new_filename)
return fname
def save_extracted_file(self, zipfile, filename):
"Extract the file to a temp directory for viewing"
try:
filebytes = zipfile.read(filename)
except zipfile.BadZipfile, err:
print 'Error opening the zip file: %s' % (err)
return False
except KeyError, err:
self.alert('Key Error', 'Zipfile key not found: '
+ str(filename))
return
outfn = self.make_new_filename(filename)
if (outfn == ''):
return False
fname = os.path.join(self.get_activity_root(), 'instance', outfn)
f = open(fname, 'w')
try:
f.write(filebytes)
finally:
f.close()
return True
def make_new_filename(self, filename):
partition_tuple = filename.rpartition('/')
return partition_tuple[2]
def create_preview_metadata(self, filename):
file_mimetype = mime.get_for_file(filename)
if not file_mimetype.startswith('image/'):
return ''
scaled_pixbuf = gtk.gdk.pixbuf_new_from_file_at_size(filename,
style.zoom(320), style.zoom(240))
preview_data = []
def save_func(buf, data):
data.append(buf)
scaled_pixbuf.save_to_callback(save_func, 'png',
user_data=preview_data)
preview_data = ''.join(preview_data)
return preview_data