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# -*- coding: utf-8 -*-
#
# Carbou - text entry and UI navigation application
#
# Copyright (C) 2009 Eitan Isaacson <eitan@monotonous.org>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation; either version 2.1 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 Lesser General Public License
# for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import gtk
import gtk.gdk as gdk
import keyboard
from keyboards import qwerty
class CaribouWindow(gtk.Window):
__gtype_name__ = "CaribouWindow"
def __init__(self, default_placement=None):
super(CaribouWindow, self).__init__(gtk.WINDOW_POPUP)
self.set_name("CaribouWindow")
self._vbox = gtk.VBox()
self.add(self._vbox)
self._vbox.pack_start(keyboard.CaribouKeyboard(qwerty))
self.connect("size-allocate", lambda w, a: self._update_position())
self._cursor_location = gdk.Rectangle()
self._entry_location = gdk.Rectangle()
self._default_placement = default_placement or \
CaribouWindowPlacement()
def set_cursor_location(self, cursor_location):
self._cursor_location = cursor_location
self._update_position()
def set_entry_location(self, entry_location):
self._entry_location = entry_location
self._update_position()
def set_default_placement(self, default_placement):
self._default_placement = default_placement
self._update_position()
def _get_root_bbox(self):
root_window = gdk.get_default_root_window()
args = root_window.get_position() + root_window.get_size()
return gdk.Rectangle(*args)
def _calculate_position(self, placement=None):
root_bbox = self._get_root_bbox()
placement = placement or self._default_placement
x = self._calculate_axis(placement.x, root_bbox)
y = self._calculate_axis(placement.y, root_bbox)
return x, y
def _update_position(self):
x, y = self._calculate_position()
root_bbox = self._get_root_bbox()
proposed_position = \
gdk.Rectangle(x, y, self.allocation.width, self.allocation.height)
x += self._default_placement.x.adjust_to_bounds(root_bbox, proposed_position)
y += self._default_placement.y.adjust_to_bounds(root_bbox, proposed_position)
self.move(x, y)
def _calculate_axis(self, axis_placement, root_bbox):
bbox = root_bbox
if axis_placement.stickto == CaribouWindowPlacement.CURSOR:
bbox = self._cursor_location
elif axis_placement.stickto == CaribouWindowPlacement.ENTRY:
bbox = self._entry_location
offset = axis_placement.get_offset(bbox)
if axis_placement.align == CaribouWindowPlacement.END:
offset += axis_placement.get_length(bbox)
if axis_placement.gravitate == CaribouWindowPlacement.INSIDE:
offset -= axis_placement.get_length(self.allocation)
elif axis_placement.align == CaribouWindowPlacement.START:
if axis_placement.gravitate == CaribouWindowPlacement.OUTSIDE:
offset -= axis_placement.get_length(self.allocation)
elif axis_placement.align == CaribouWindowPlacement.CENTER:
offset += axis_placement.get_length(bbox)/2
return offset
class CaribouWindowEntry(CaribouWindow):
__gtype_name__ = "CaribouWindowEntry"
def __init__(self):
placement = CaribouWindowPlacement(
xalign=CaribouWindowPlacement.START,
xstickto=CaribouWindowPlacement.ENTRY,
ystickto=CaribouWindowPlacement.ENTRY,
xgravitate=CaribouWindowPlacement.INSIDE,
ygravitate=CaribouWindowPlacement.OUTSIDE)
CaribouWindow.__init__(self, placement)
def _calculate_axis(self, axis_placement, root_bbox):
offset = CaribouWindow._calculate_axis(self, axis_placement, root_bbox)
if axis_placement.axis == 'y':
if offset + self.allocation.height > root_bbox.height + root_bbox.y:
new_axis_placement = axis_placement.copy(align=CaribouWindowPlacement.START)
offset = CaribouWindow._calculate_axis(self, new_axis_placement, root_bbox)
return offset
class CaribouWindowPlacement(object):
START = 'start'
END = 'end'
CENTER = 'center'
SCREEN = 'screen'
ENTRY = 'entry'
CURSOR = 'cursor'
INSIDE = 'inside'
OUTSIDE = 'outside'
class _AxisPlacement(object):
def __init__(self, axis, align, stickto, gravitate):
self.axis = axis
self.align = align
self.stickto = stickto
self.gravitate = gravitate
def copy(self, align=None, stickto=None, gravitate=None):
return self.__class__(self.axis,
align or self.align,
stickto or self.stickto,
gravitate or self.gravitate)
def get_offset(self, bbox):
return bbox.x if self.axis == 'x' else bbox.y
def get_length(self, bbox):
return bbox.width if self.axis == 'x' else bbox.height
def adjust_to_bounds(self, root_bbox, child_bbox):
child_vector_start = self.get_offset(child_bbox)
child_vector_end = self.get_length(child_bbox) + child_vector_start
root_vector_start = self.get_offset(root_bbox)
root_vector_end = self.get_length(root_bbox) + root_vector_start
if root_vector_end < child_vector_end:
return root_vector_end - child_vector_end
if root_vector_start > child_vector_start:
return root_vector_start - child_vector_start
return 0
def __init__(self,
xalign=None, xstickto=None, xgravitate=None,
yalign=None, ystickto=None, ygravitate=None):
self.x = self._AxisPlacement('x',
xalign or self.END,
xstickto or self.CURSOR,
xgravitate or self.OUTSIDE)
self.y = self._AxisPlacement('y',
yalign or self.END,
ystickto or self.CURSOR,
ygravitate or self.OUTSIDE)
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