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#!/usr/bin/env python
# Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
# All rights reserved.
# Contact: PySide Team (pyside@openbossa.org)
#
# This file is part of the examples of PySide: Python for Qt.
#
# You may use this file under the terms of the BSD license as follows:
#
# "Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
# the names of its contributors may be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
from PySide.QtCore import QObject, QUrl, QAbstractListModel, QModelIndex, QThread, QTimer
from PySide.QtCore import Property, Signal, Qt
from PySide import QtGui, QtDeclarative
import gdata.photos, gdata.photos.service
class Photo(QObject):
def __init__(self, gPhoto, parent=None):
super(Photo, self).__init__(parent)
self._data = gPhoto
self._thumbnail = gPhoto.media.thumbnail[0]
def getWidth(self):
return int(self._thumbnail.width)
def getHeight(self):
return int(self._thumbnail.height)
def getUrl(self):
return self._thumbnail.url
def getImageUrl(self):
return self._data.GetMediaURL()
onWidthChanged = Signal()
onHeightChanged = Signal()
onUrlChanged = Signal()
width = Property(int, getWidth, notify=onWidthChanged)
height = Property(int, getHeight, notify=onHeightChanged)
url = Property(QUrl, getUrl, notify=onUrlChanged)
imageUrl = Property(QUrl, getImageUrl, notify=onUrlChanged)
class PhotoLoad(QThread):
def __init__(self, model, parent=None):
super(PhotoLoad, self).__init__(parent)
self._model = model
def run(self):
self._model._photos = []
photos = self._model._album._service.GetFeed(self._model._album._data.GetPhotosUri()).entry
size = 0
temp = []
for p in photos:
temp.append(Photo(p))
if len(temp) == 3:
self._model.appendCache(temp)
temp = []
self._model.appendCache(temp)
self._model._done = True
class PhotoListModel(QAbstractListModel):
URL_ROLE = Qt.UserRole + 1
IMAGE_URL_ROLE = Qt.UserRole + 2
HEIGHT_ROLE = Qt.UserRole + 3
WIDTH_ROLE = Qt.UserRole + 4
def __init__(self, album, parent=None):
super(PhotoListModel, self).__init__(parent)
self._album = album
self._photos = []
self._cache = []
self._done = False
keys = {}
keys[PhotoListModel.URL_ROLE] = "url"
keys[PhotoListModel.IMAGE_URL_ROLE] = "imageUrl"
keys[PhotoListModel.HEIGHT_ROLE] = "height"
keys[PhotoListModel.WIDTH_ROLE] = "width"
self.setRoleNames(keys)
self._load = PhotoLoad(self)
self._load.start()
self._timer = QTimer()
self._timer.setInterval(1000)
self._timer.timeout.connect(self.loadCache)
self._timer.start()
def rowCount(self, index):
return len(self._photos)
def appendCache(self, itens):
self._cache += itens
def loadCache(self):
self.beginInsertRows(QModelIndex(), len(self._photos), len(self._photos) + len(self._cache))
self._photos += self._cache
self.endInsertRows()
self._cache = []
if self._done:
self._timer.stop()
def data(self, index, role):
if not index.isValid():
return None
if index.row() > len(self._photos):
return None
img = self._photos[index.row()]
if role == PhotoListModel.URL_ROLE:
return img.url
elif role == PhotoListModel.IMAGE_URL_ROLE:
return img.imageUrl
elif role == PhotoListModel.HEIGHT_ROLE:
return img.height
elif role == PhotoListModel.WIDTH_ROLE:
return img.width
else:
return None
class Album(QObject):
def __init__(self, gService, gAlbum, parent=None):
super(Album, self).__init__(parent)
self._data = gAlbum
self._service = gService
self._photos = None
def getName(self):
return self._data.name.text
def getStatus(self):
return 0
def getPhotos(self):
if not self._photos:
self._photos = PhotoListModel(self)
return self._photos
tag = Property(str, getName)
status = Property(int, getStatus)
images = Property(QAbstractListModel, getPhotos)
class AlbumListModel(QAbstractListModel):
TAG_ROLE = Qt.UserRole + 1
STATUS_ROLE = TAG_ROLE + 1
PHOTOS_ROLE = STATUS_ROLE + 1
def __init__(self, gService, parent=None):
super(AlbumListModel, self).__init__(parent)
self._service = gService
self._albums = []
keys = {}
keys[AlbumListModel.TAG_ROLE] = "tag"
keys[AlbumListModel.STATUS_ROLE] = "status"
keys[AlbumListModel.PHOTOS_ROLE] = "photos"
self.setRoleNames(keys)
self.load()
def load(self):
self._albums = []
albums = self._service.GetUserFeed().entry
for a in albums:
self._albums.append(Album(self._service, a))
return self._albums
def rowCount(self, index):
return len(self._albums)
def data(self, index, role):
if not index.isValid():
return None
if index.row() > len(self._albums):
return None
alb = self._albums[index.row()]
if role == AlbumListModel.TAG_ROLE:
return alb.tag
elif role == AlbumListModel.STATUS_ROLE:
return alb.status
elif role == AlbumListModel.PHOTOS_ROLE:
return alb.getPhotos()
else:
return None
class Picasa(object):
def __init__(self, login, password):
self._data = gdata.photos.service.PhotosService()
self._data.ClientLogin(login, password)
self._albumModel = None
def getAlbumListModel(self):
if not self._albumModel:
self._albumModel = AlbumListModel(self._data)
return self._albumModel
if __name__ == '__main__':
import sys
QtGui.QApplication.setGraphicsSystem("raster")
app = QtGui.QApplication(sys.argv)
username, ok = QtGui.QInputDialog.getText(None, "Username", "Username:", QtGui.QLineEdit.Normal)
if not ok:
print "Must provide a username"
sys.exit(1)
password, ok = QtGui.QInputDialog.getText(None, "Password", "Password:", QtGui.QLineEdit.Password)
if not ok:
print "Must provide a password"
sys.exit(1)
data = Picasa(username, password)
view = QtDeclarative.QDeclarativeView()
engine = view.engine()
engine.quit.connect(app.quit)
albums = data.getAlbumListModel()
view.rootContext().setContextProperty("albumModel", albums)
context = view.rootContext()
view.setSource(QUrl('photoviewer.qml'))
view.show()
sys.exit(app.exec_())
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