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import time
import logging
import gtk
import gobject
DEFAULT_WIDTH = 640
DEFAULT_HEIGHT = 480
SLIDING_TIME = 0.8
class SlidingHelper:
IN = 0
OUT = 1
def __init__(self, manager, direction):
self._direction = direction
self._cur_time = time.time()
self._target_time = self._cur_time + SLIDING_TIME
self._manager = manager
self._start = True
self._end = False
(x, y, width, height) = manager.get_geometry()
self._orig_y = y
if direction == SlidingHelper.IN:
self._target_y = y
manager.set_geometry(x, y - height, width, height)
else:
self._target_y = y - height
def get_direction(self):
return self._direction
def is_start(self):
return self._start
def is_end(self):
return self._end
def get_next_y(self):
self._start = False
(x, y, width, height) = self._manager.get_geometry()
old_time = self._cur_time
self._cur_time = time.time()
remaining = self._target_time - self._cur_time
if remaining <= 0 or \
(y > self._target_y and self._direction == SlidingHelper.IN) or \
(y < self._target_y and self._direction == SlidingHelper.OUT):
self._end = True
y = self._orig_y
else:
approx_time_step = float(self._cur_time - old_time)
approx_n_steps = remaining / approx_time_step
step = (self._target_y - y) / approx_n_steps
y += step
return y
class WindowManager:
__managers_list = []
TYPE_ACTIVITY = 0
TYPE_POPUP = 1
ANIMATION_NONE = 0
ANIMATION_SLIDE_IN = 1
def __init__(self, window):
self._window = window
self._window_type = WindowManager.TYPE_ACTIVITY
self._animation = WindowManager.ANIMATION_NONE
self._key = 0
self._animating = False
window.connect("key-press-event", self.__key_press_event_cb)
WindowManager.__managers_list.append(self)
def __key_press_event_cb(self, window, event):
# FIXME we should fix this to work also while animating
if self._animating:
return False
for manager in WindowManager.__managers_list:
if event.keyval == manager._key:
if manager._window.get_property('visible'):
manager.hide()
else:
manager.show()
def get_geometry(self):
return (self._x, self._y, self._width, self._height)
def set_geometry(self, x, y, width, height):
if self._window_type == WindowManager.TYPE_ACTIVITY:
logging.error('The geometry will be ignored for activity windows')
self._x = x
self._y = y
self._width = width
self._height = height
def set_animation(self, animation):
self._animation = animation
def set_type(self, window_type):
self._window_type = window_type
def set_key(self, key):
self._key = key
def show(self):
self._update_hints()
self._update_size()
if self._animation == WindowManager.ANIMATION_SLIDE_IN:
self._slide_in()
else:
self._update_position()
self._window.show()
def hide(self):
if self._animation == WindowManager.ANIMATION_SLIDE_IN:
self._slide_out()
else:
self._window.hide()
def _get_screen_dimensions(self):
screen_width = DEFAULT_WIDTH
screen_height = DEFAULT_HEIGHT
for manager in WindowManager.__managers_list:
if manager._window_type == WindowManager.TYPE_ACTIVITY:
screen_width = manager._window.allocation.width
screen_height = manager._window.allocation.height
return (screen_width, screen_height)
def _get_screen_position(self):
result = (0, 0)
for manager in WindowManager.__managers_list:
if manager._window_type == WindowManager.TYPE_ACTIVITY:
result = manager._window.get_position()
return result
def _transform_position(self):
(screen_width, screen_height) = self._get_screen_dimensions()
(screen_x, screen_y) = self._get_screen_position()
x = int(screen_width * self._x) + screen_x
y = int(screen_height * self._y) + screen_y
return (x, y)
def _transform_dimensions(self):
(screen_width, screen_height) = self._get_screen_dimensions()
width = int(screen_width * self._width)
height = int(screen_height * self._height)
return (width, height)
def _update_hints(self):
if self._window_type == WindowManager.TYPE_POPUP:
self._window.set_decorated(False)
self._window.set_skip_taskbar_hint(True)
def _update_size(self):
if self._window_type == WindowManager.TYPE_ACTIVITY:
self._window.resize(DEFAULT_WIDTH, DEFAULT_HEIGHT)
else:
(width, height) = self._transform_dimensions()
self._window.resize(width, height)
def _update_position(self):
if self._window_type == WindowManager.TYPE_POPUP:
(x, y) = self._transform_position()
self._window.move(x, y)
def __slide_timeout_cb(self, helper):
start = helper.is_start()
self._y = helper.get_next_y()
self._update_position()
if start and helper.get_direction() == SlidingHelper.IN:
self._window.show()
elif helper.is_end() and helper.get_direction() == SlidingHelper.OUT:
self._window.hide()
self._animating = not helper.is_end()
return not helper.is_end()
def _slide_in(self):
helper = SlidingHelper(self, SlidingHelper.IN)
gobject.idle_add(self.__slide_timeout_cb, helper)
def _slide_out(self):
helper = SlidingHelper(self, SlidingHelper.OUT)
gobject.idle_add(self.__slide_timeout_cb, helper)
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