Restructure the src directory

It is split into
- /libgnucash (for the non-gui bits)
- /gnucash (for the gui)
- /common (misc source files used by both)
- /bindings (currently only holds python bindings)

This is the first step in restructuring the code. It will need much
more fine tuning later on.

bindings/python/example_scripts/price_database_example.py

@@ -0,0 +1,91 @@
+#!/usr/bin/env python
+# Another test file for price database stuff
+# To update the price database call
+# $PATH/gnucash  --add-price-quotes $PATHTOFILE
+# before running this.
+# Adding to a calling bash script would be better
+# Although calling it from here would be even better!
+#  OR:  export PYTHONPATH=$HOME/progs/lib/python2.6/site-packages
+# Then: gnucash-env ipython
+# The account file is not saved but always use a disposable copy.
+# Thanks for contributions by Christoph Holtermann and Mark Jenkins
+
+##  @file
+#   @brief Test file for price database stuff
+#   @author Mike Evans, Christoph Holtermann, Mark Jenkins
+#   @ingroup python_bindings_examples
+
+from gnucash import Session
+
+# -------------------------------------------
+# Configuration options can be changed here :
+
+cur_mnemonic="EUR"                      # Currency that prices are shown in. Possibilities include "EUR","GBP",...
+namespace_name = ""                     # If no namespace_name is set, all namespaces will be shown
+show_prices = True                      # If True, all prices for commodity are shown
+commodity_fullname = ""                 # If no name is given, all commoditys in namespace will be shown
+FILE = "PATH_TO_YOUR_TEST_FILE"         # File is not saved but use a copy anyway
+
+# Configuration end
+# -------------------------------------------
+
+session = Session(FILE, True, False, False)
+
+root = session.book.get_root_account()
+book = session.book
+pdb = book.get_price_db()
+comm_table = book.get_table()
+
+cur = comm_table.lookup("CURRENCY", cur_mnemonic)
+cur_name = cur.get_fullname()
+
+
+if namespace_name != "":                    # Show single namespace
+  namespaces [ comm_table.find_namespace(namespace_name) ]
+
+else:                                 # Show all namespaces
+  namespaces=comm_table.get_namespaces_list()
+
+for namespace in namespaces:
+
+  namespace_name=namespace.get_name()
+
+
+  # Get a list of all commodities in namespace
+  commodities=comm_table.get_commodities(namespace_name)
+
+
+  if len(commodities) == 0 :
+
+    print "No commodity in namespace "+namespace_name+"."
+  else:
+    if commodity_fullname:
+      print "Searching commodity '"+commodity_fullname+"' in namespace "+namespace_name
+    else:
+      print "Commoditys in namespace "+namespace_name+":"
+
+
+    for i, c in enumerate(commodities):
+
+      c_fullname = c.get_fullname()
+
+      if not(commodity_fullname) or (commodity_fullname == c_fullname):
+        print "["+str(i)+"] Full Name :", c.get_fullname()
+        if show_prices:
+          pl = pdb.get_prices(c,cur)
+
+          if len(pl) > 0 :
+            print "{0} {1:20}{2:>10} {3}".format("Time      ","Source","Price","Currency")
+            for pr in pl:
+
+               source = pr.get_source()
+               time = pr.get_time()
+               v=pr.get_value()
+               price = float(v.num)/v.denom
+
+               print "{0} {1:20}{2:10.4f} {3}".format(time,source,price,cur_name)
+               # I didn't find out how to format the time option...
+
+session.end()
+session.destroy()
+quit()