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# Copyright (C) 2010, Aleksey Lim
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import logging
import gtk
import gobject
import pango
class Entry(gtk.TextView):
"""One paragraph string entry with additional features
* multi line mode for wrapping long lines
* having wrapping and ellipses simultaneously in inactive mode
* accent in inactive mode
NOTE: Use text property instead of buffer, buffer's value will be
changed in inactive mode
"""
def __init__(self, **kwargs):
self._max_line_count = 1
self._text = None
gobject.GObject.__init__(self, **kwargs)
self._tag = self.props.buffer.create_tag()
self._tag.props.weight = pango.WEIGHT_BOLD
gtk.TextView.set_accepts_tab(self, False)
self.set_max_line_count(self._max_line_count)
self.connect('key-press-event', self.__key_press_event_cb)
self.connect('focus-in-event', self.__focus_in_event_cb)
self.connect('focus-out-event', self.__focus_out_event_cb)
self.connect('button-release-event', self.__button_release_event_cb)
def set_accepts_tab(self, value):
# accepts_tab cannot be set by users
assert(False)
def get_accepts_tab(self):
return gtk.TextView.get_accepts_tab()
accepts_tab = gobject.property(
getter=get_accepts_tab, setter=set_accepts_tab)
def set_wrap_mode(self, value):
# accepts_tab cannot be set by users
assert(False)
def get_wrap_mode(self):
return gtk.TextView.get_wrap_mode()
wrap_mode = gobject.property(
getter=get_wrap_mode, setter=set_wrap_mode)
def get_max_line_count(self):
return self._max_line_count
def set_max_line_count(self, max_line_count):
max_line_count = max(1, max_line_count)
self._max_line_count = max_line_count
if max_line_count == 1:
gtk.TextView.set_wrap_mode(self, gtk.WRAP_NONE)
else:
gtk.TextView.set_wrap_mode(self, gtk.WRAP_WORD)
context = self.get_pango_context()
metrics = context.get_metrics(self.style.font_desc)
line_height = pango.PIXELS(metrics.get_ascent() + \
metrics.get_descent())
self.set_size_request(-1, line_height * max_line_count)
max_line_count = gobject.property(
getter=get_max_line_count, setter=set_max_line_count)
def get_text(self):
return self._text
def set_text(self, value):
self._text = value
self.props.buffer.props.text = value
if not self.props.has_focus:
self._accept()
text = gobject.property(getter=get_text, setter=set_text)
def do_size_allocate(self, allocation):
gtk.TextView.do_size_allocate(self, allocation)
if not self.props.has_focus:
self._accept()
def _accept(self):
if self._text is None:
return
gtk.TextView.set_wrap_mode(self, gtk.WRAP_WORD)
buf = self.props.buffer
buf.props.text = self._text
def accent():
start = buf.get_start_iter()
end = buf.get_end_iter()
buf.apply_tag(self._tag, start, end)
def last_offset():
iter = buf.get_start_iter()
for __ in xrange(self._max_line_count):
if not self.forward_display_line(iter):
return None
return iter.get_offset()
accent()
offset = last_offset()
if offset is not None:
offset = len(buf.props.text[:offset].rstrip()) - 1
buf.props.text = buf.props.text[:offset] + '...'
final_offset = last_offset()
if final_offset is not None and final_offset < offset + 3:
# ellipses added new line
buf.props.text = buf.props.text[:offset - 3] + '...'
accent()
def __button_release_event_cb(self, widget, event):
buf = self.props.buffer
if not buf.get_has_selection():
buf.select_range(buf.get_end_iter(), buf.get_start_iter())
return False
def __focus_in_event_cb(self, widget, event):
self.props.buffer.props.text = self._text
if self._max_line_count == 1:
gtk.TextView.set_wrap_mode(self, gtk.WRAP_NONE)
else:
gtk.TextView.set_wrap_mode(self, gtk.WRAP_WORD)
return False
def __focus_out_event_cb(self, widget, event):
self._text = self.props.buffer.props.text
self._accept()
return False
def __key_press_event_cb(self, widget, event):
ignore_mask = [gtk.keysyms.Return]
if self._max_line_count == 1:
ignore_mask.extend([gtk.keysyms.Up, gtk.keysyms.Down])
if event.keyval in ignore_mask:
key_event = event
if event.keyval in [gtk.keysyms.Up]:
# change Shift mask for backwards keys
if key_event.state & gtk.gdk.SHIFT_MASK:
key_event.state &= ~gtk.gdk.SHIFT_MASK
else:
key_event.state |= gtk.gdk.SHIFT_MASK
key_event.keyval = gtk.keysyms.Tab
key_event.hardware_keycode = 0
gtk.main_do_event(key_event)
return True
return False
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