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#!/usr/bin/python
# -*- coding: latin1 -*-
### Copyright (C) 2007 Damon Lynch <damonlynch@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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import os
import config
import common
import operator
def getDefaultPhotoLocation():
for default in config.DEFAULT_PHOTO_LOCATIONS:
path = common.getFullPath(default)
if os.path.isdir(path):
return path
return common.getFullPath('')
def isImageMedia(path):
""" Returns true if directory specifies some media with photos on it """
if os.path.isdir(os.path.join(path, "DCIM")):
# is very likely a memory card, or something like that!
return True
else:
return False
def isBackupMedia(path, identifier, writeable=True):
""" Test to see if path is used as a backup medium for storing images
If writeable is True, the directory must be writeable by the user """
suitable = False
if os.path.isdir(os.path.join(path, identifier)):
if writeable:
suitable = os.access(os.path.join(path, identifier), os.W_OK)
else:
suitable = True
return suitable
def isImage(fileName):
ext = os.path.splitext(fileName)[1].lower()[1:]
return (ext in config.RAW_FILE_EXTENSIONS) or (ext in config.NON_RAW_IMAGE_FILE_EXTENSIONS)
class Media:
""" Generic class for media holding images """
def __init__(self, path, volume = None):
"""
volume is a gnomevfs or gio volume, see class Volume in rapid.py
"""
self.path = path
self.volume = volume
def prettyName(self, limit=config.MAX_LENGTH_DEVICE_NAME):
"""
Returns a name for the media, useful for display.
If the media is from a gnomevfs volume, returns the gnome name.
Else. returns the last part of the mount point after stripping out
underscores.
"""
if self.volume:
return self.volume.get_name(limit)
else:
name = os.path.split(self.path)[1]
name = name.replace('_', ' ')
v = name
if limit:
if len(v) > limit:
v = v[:limit] + '...'
return v
def getPath(self):
return self.path
class CardMedia(Media):
"""Compact Flash cards, etc."""
def __init__(self, path, volume = None, doNotScan=True):
"""
volume is a gnomevfs or gio volume, see class Volume in rapid.py
"""
Media.__init__(self, path, volume)
if not doNotScan:
self.scanMedia()
def scanMedia(self):
""" creates a list of images on a path, recursively scanning
images are sorted by modification time"""
self.images = []
self.imageSizeSum = 0
for root, dirs, files in os.walk(self.path):
for name in files:
if isImage(name):
image = os.path.join(root, name)
size = os.path.getsize(image)
modificationTime = os.path.getmtime(image)
self.images.append((name, root, size, modificationTime),)
self.imageSizeSum += size
self.images.sort(key=operator.itemgetter(3))
self.noImages = len(self.images)
def setMedia(self, images, imageSizeSum, noImages):
self.images = images
self.imageSizeSum = imageSizeSum
self.noImages = noImages
def numberOfImages(self):
return self.noImages
def sizeOfImages(self, humanReadable = True):
if humanReadable:
return common.formatSizeForUser(self.imageSizeSum)
else:
return self.imageSizeSum
def firstImage(self):
if self.images:
return self.images[0]
else:
return None
def scanForImageMedia(path):
""" returns a list of paths that contain images on media produced by a digital camera """
media = []
for i in os.listdir(path):
p = os.path.join(path, i)
if os.path.isdir(p):
if isImageMedia(p):
media.append(p)
return media
def scanForBackupMedia(path, identifier):
""" returns a list of paths that contains backed up images """
media = []
for i in os.listdir(path):
p = os.path.join(path, i)
if os.path.isdir(p):
if isBackupMedia(p, identifier):
media.append(os.path.join(p, identifier))
return media
if __name__ == '__main__':
print "Card media:"
for m in scanForImageMedia('/media'):
media = CardMedia(m)
print media.prettyName()
print media.numberOfImages()
print media.sizeOfImages()
print "\nBackup media:"
for m in scanForBackupMedia('/media', 'photos'):
print m
print "\nDefault download folder: ", getDefaultPhotoLocation()
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