Added initial query class, which will eventually allow easy access to project data objects.

src/classes/query.py

+""" 
+ @file
+ @brief This file can easily query Clips, Files, and other project data
+ @author Jonathan Thomas <jonathan@openshot.org>
+ 
+ @section LICENSE
+ 
+ Copyright (c) 2008-2014 OpenShot Studios, LLC
+ (http://www.openshotstudios.com). This file is part of
+ OpenShot Video Editor (http://www.openshot.org), an open-source project
+ dedicated to delivering high quality video editing and animation solutions
+ to the world.
+ 
+ OpenShot Video Editor 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 3 of the License, or
+ (at your option) any later version.
+ 
+ OpenShot Video Editor 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 OpenShot Library.  If not, see <http://www.gnu.org/licenses/>.
+ """
+
+import os, sys, random, copy
+from classes.json_data import JsonDataStore
+from classes.updates import UpdateInterface
+from classes import info, settings
+from classes.logger import log
+from classes.app import get_app
+
+class Clip():
+	""" This class allows one or more project data objects to be queried """
+	
+	def __init__(self, **kwargs):
+		""" Constructor """
+		
+		self.app = get_app()
+		self.project = app.project
+		self.root_key = "clip"
+	
+	def filter(self, **kwargs):
+		""" Take any arguments given as filters, and find a matching object """
+		
+		for key, value in kwargs.iteritems():
+			log.info("%s = %s" % (key, value))
+