mdb
be6c4511ee
git-svn-id: https://samskivert.googlecode.com/svn/trunk@669 6335cc39-0255-0410-8fd6-9bcaacd3b74c
91 lines
3.2 KiB
Python
91 lines
3.2 KiB
Python
#
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# $Id: history.py,v 1.1 2002/03/17 21:25:20 mdb Exp $
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#
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# lookuplet - a utility for quickly looking up information
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# Copyright (C) 2001 Michael Bayne
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2.1 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import gnome.config
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class History:
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"Used to persistently maintain a history of entries for the \
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lookuplet query text field."
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# the maximum history size
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HISTORY_SIZE = 10;
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# the actual history entries
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history = [];
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#
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# Loads up the history from persistent preferences and prepares for
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# operation.
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#
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def __init__ (self):
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gnome.config.push_prefix("/lookuplet/");
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count = gnome.config.get_int("lookuplet/history/count");
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for h in range(0, count):
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self.history.append(gnome.config.get_string(
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"lookuplet/history/entry_%.2u" % h));
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# print "loaded %d: %s" % (h, self.history[h]);
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gnome.config.pop_prefix();
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return;
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#
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# Adds an entry to the history.
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#
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def append (self, entry):
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# if this entry is already in the history list, we simply want to
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# move it to the end
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if (entry in self.history):
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self.history.remove(entry);
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# add our entry
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self.history.append(entry);
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# trim the history if it's too big
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if (len(self.history) > self.HISTORY_SIZE):
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self.history.pop(0);
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# flush our config to the configuration repository
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gnome.config.push_prefix("/lookuplet/");
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count = len(self.history);
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gnome.config.set_int("lookuplet/history/count", count);
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for h in range(0, count):
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gnome.config.set_string(
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"lookuplet/history/entry_%.2u" % h, self.history[h]);
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# print "wrote %d: %s" % (h, self.history[h]);
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gnome.config.sync();
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gnome.config.drop_all();
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gnome.config.pop_prefix();
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#
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# Scans back from one before the specified index looking for a history
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# entry that matches the specified prefix, returning its index if one
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# is found or -1 if one is not.
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#
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def match (self, prefix, index):
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count = len(self.history);
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for offset in range(1, count+1):
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# do some funny math to always ensure a positive value
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pos = (index - offset + count) % count;
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# print "scanning %s for %s." % (self.history[pos], prefix);
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if (self.history[pos].find(prefix) == 0):
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# print "found it at %d." % pos;
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return pos;
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# print "didn't find it.";
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return -1;
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