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# Copyright (C) 2009 Lars Wirzenius <liw@liw.fi>
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
import re
import gtk
import dimbola
class Taglist(object):
'''User-editable list of tags.
This is used for the list of tags for a photo, or the tags that are
currently searched for. This is not the "tag tree" that is used to
hold the whole set of tags in the database.
'''
tagpat = re.compile(r'^taglist-photoid-(?P<photoid>\d+)-'
r'tagid-(?P<tagid>\d+)$')
def __init__(self, textview, popup, popup_prepare_cb):
self.textview = textview
self.popup = popup
self.popup_prepare = popup_prepare_cb
self.buf = self.textview.get_buffer()
self.textview.drag_dest_set(gtk.DEST_DEFAULT_ALL,
[(dimbola.TAGIDS_TYPE,
gtk.TARGET_SAME_APP, 0)],
gtk.gdk.ACTION_COPY)
def text_tag_name(self, photoid, tagid):
return 'taglist-photoid-%d-tagid-%d' % (photoid, tagid)
def parse_text_tag_name(self, name):
m = self.tagpat.match(name)
assert m
return int(m.group('photoid')), int(m.group('tagid'))
def is_our_text_tag_name(self, name):
return self.tagpat.match(name)
@property
def text_tag_names(self):
def save(text_tag, text_tag_names):
name = text_tag.get_property('name')
if self.is_our_text_tag_name(name):
text_tag_names.append(name)
names = []
tag_table = self.buf.get_tag_table()
tag_table.foreach(save, names)
return names
def clear(self):
'''Clear the buffer from all text and tags.'''
self.buf.set_text('')
tag_table = self.buf.get_tag_table()
for name in self.text_tag_names:
text_tag = tag_table.lookup(name)
tag_table.remove(text_tag)
def set_tags(self, photoid, tags):
'''Set tags in list.
tags is list of (tagid, tagname) pairs.
'''
self.clear()
taglist = [(tagname.lower(), tagid, tagname)
for tagid, tagname in tags]
taglist.sort()
tags = [(tagid, tagname) for sortkey, tagid, tagname in taglist]
for tagid, tagname in tags:
text_tag = self.buf.create_tag(self.text_tag_name(photoid, tagid))
it = self.buf.get_end_iter()
if self.buf.get_char_count() > 0:
self.buf.insert(it, '; ')
begin = self.buf.create_mark('begin-%s' % tagid, it, True)
self.buf.insert_with_tags(it, tagname, text_tag)
end = self.buf.create_mark('end-%d' % tagid, it, True)
def iter_to_ids(self, it):
'''Return the photoid, tagid that applies at an iterator.
If nothing is found, return None, None.
'''
for text_tag in it.get_tags():
text_tag_name = text_tag.get_property('name')
if self.is_our_text_tag_name(text_tag_name):
photoid, tagid = self.parse_text_tag_name(text_tag_name)
return photoid, tagid
return None, None
def select_tagname_at_iter(self, it):
'''Select the tagname at an iterator.'''
photoid, tagid = self.iter_to_ids(it)
if tagid is not None:
begin = self.buf.get_mark('begin-%d' % tagid)
end = self.buf.get_mark('end-%d' % tagid)
self.buf.select_range(self.buf.get_iter_at_mark(begin),
self.buf.get_iter_at_mark(end))
def button_press_event(self, widget, event): # pragma: no cover
shift = (event.state & gtk.gdk.SHIFT_MASK) == gtk.gdk.SHIFT_MASK
ctrl = (event.state & gtk.gdk.CONTROL_MASK) == gtk.gdk.CONTROL_MASK
if event.button == 1:
it = self.textview.get_iter_at_location(int(event.x), int(event.y))
self.select_tagname_at_iter(it)
return True
elif event.button == 3:
if not self.buf.get_has_selection():
it = self.textview.get_iter_at_location(int(event.x),
int(event.y))
if it:
self.select_tagname_at_iter(it)
if self.popup_prepare:
self.popup_prepare()
self.popup.popup(None, None, None, event.button, event.time)
return True
def selected_tag(self):
if self.buf.get_has_selection():
begin_mark = self.buf.get_insert()
it = self.buf.get_iter_at_mark(begin_mark)
return self.iter_to_ids(it)
def drag_motion(self, w, dc, x, y, timestamp): # pragma: no cover
self.textview.drag_highlight()
dc.drag_status(gtk.gdk.ACTION_COPY, timestamp)
return True
def drag_leave(self, w, dc, timestamp): # pragma: no cover
self.textview.drag_unhighlight()
def drag_data_received(self, *args): # pragma: no cover
w, dc, x, y, data, info, timestamp = args
tagids = dimbola.decode_dnd_tagids(data.data)
dc.finish(True, False, timestamp)
return tagids
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