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# Copyright (C) 2009, 2010 Roman Zimbelmann <romanz@lavabit.com>
#
# 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 curses
class MouseEvent(object):
PRESSED = [ 0,
curses.BUTTON1_PRESSED,
curses.BUTTON2_PRESSED,
curses.BUTTON3_PRESSED,
curses.BUTTON4_PRESSED ]
def __init__(self, getmouse):
"""Creates a MouseEvent object from the result of win.getmouse()"""
_, self.x, self.y, _, self.bstate = getmouse
# x-values above ~220 suddenly became negative, apparently
# it's sufficient to add 0xFF to fix that error.
if self.x < 0:
self.x += 0xFF
if self.y < 0:
self.y += 0xFF
def pressed(self, n):
"""Returns whether the mouse key n is pressed"""
try:
return (self.bstate & MouseEvent.PRESSED[n]) != 0
except:
return False
def mouse_wheel_direction(self):
if self.bstate & curses.BUTTON4_PRESSED:
return -1
elif self.bstate & curses.BUTTON2_PRESSED \
or self.bstate > curses.ALL_MOUSE_EVENTS:
return 1
else:
return 0
def ctrl(self):
return self.bstate & curses.BUTTON_CTRL
def alt(self):
return self.bstate & curses.BUTTON_ALT
def shift(self):
return self.bstate & curses.BUTTON_SHIFT
def key_invalid(self):
return self.bstate > curses.ALL_MOUSE_EVENTS
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