Implement the transition between zoom view.

This commit is contained in:
Marco Pesenti Gritti 2007-04-16 11:40:28 +02:00
parent 5bfc64d9be
commit f55a19b73c
3 changed files with 104 additions and 6 deletions

View File

@ -19,20 +19,25 @@ import hippo
import cairo
from sugar.graphics.menushell import MenuShell
from sugar.graphics import units
import sugar
from view.home.MeshBox import MeshBox
from view.home.HomeBox import HomeBox
from view.home.FriendsBox import FriendsBox
from view.home.transitionbox import TransitionBox
_HOME_PAGE = 0
_FRIENDS_PAGE = 1
_MESH_PAGE = 2
_HOME_PAGE = 0
_FRIENDS_PAGE = 1
_MESH_PAGE = 2
_TRANSITION_PAGE = 3
class HomeWindow(gtk.Window):
def __init__(self, shell):
gtk.Window.__init__(self)
self._shell = shell
self._active = False
self._level = sugar.ZOOM_HOME
self.set_default_size(gtk.gdk.screen_width(),
gtk.gdk.screen_height())
@ -68,6 +73,15 @@ class HomeWindow(gtk.Window):
self._nb.append_page(canvas)
canvas.show()
canvas = hippo.Canvas()
self._transition_box = TransitionBox()
canvas.set_root(self._transition_box)
self._nb.append_page(canvas)
canvas.show()
self._transition_box.connect('completed',
self._transition_completed_cb)
def _key_release_cb(self, widget, event):
keyname = gtk.gdk.keyval_name(event.keyval)
if keyname == "Alt_L":
@ -88,11 +102,25 @@ class HomeWindow(gtk.Window):
self._update_mesh_state()
def set_zoom_level(self, level):
self._level = level
self._nb.set_current_page(_TRANSITION_PAGE)
if level == sugar.ZOOM_HOME:
self._nb.set_current_page(_HOME_PAGE)
scale = units.XLARGE_ICON_SCALE
elif level == sugar.ZOOM_FRIENDS:
self._nb.set_current_page(_FRIENDS_PAGE)
scale = units.LARGE_ICON_SCALE
elif level == sugar.ZOOM_MESH:
scale = units.STANDARD_ICON_SCALE
self._transition_box.set_scale(scale)
def _transition_completed_cb(self, transition_box):
if self._level == sugar.ZOOM_HOME:
self._nb.set_current_page(_HOME_PAGE)
elif self._level == sugar.ZOOM_FRIENDS:
self._nb.set_current_page(_FRIENDS_PAGE)
elif self._level == sugar.ZOOM_MESH:
self._nb.set_current_page(_MESH_PAGE)
self._update_mesh_state()

View File

@ -0,0 +1,66 @@
# Copyright (C) 2007, Red Hat, Inc.
#
# 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 hippo
import gobject
from sugar.graphics import units
from sugar.graphics import animator
from sugar.graphics.spreadbox import SpreadBox
from view.home.MyIcon import MyIcon
class _Animation(animator.Animation):
def __init__(self, icon, start_scale, end_scale):
animator.Animation.__init__(self, 0.0, 1.0)
self._icon = icon
self.start_scale = start_scale
self.end_scale = end_scale
def next_frame(self, current):
d = (self.end_scale - self.start_scale) * current
self._icon.props.scale = self.start_scale + d
class TransitionBox(SpreadBox):
__gtype_name__ = 'SugarTransitionBox'
__gsignals__ = {
'completed': (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE, ([]))
}
def __init__(self):
SpreadBox.__init__(self, background_color=0xe2e2e2ff)
self._scale = 0.0
self._my_icon = MyIcon(units.LARGE_ICON_SCALE)
self.set_center_item(self._my_icon)
self._animator = animator.Animator(0.5, 30)
self._animator.connect('completed', self._animation_completed_cb)
def _animation_completed_cb(self, anim):
self.emit('completed')
def set_scale(self, scale):
self._animator.remove_all()
self._animator.add(_Animation(self._my_icon, self._scale, scale))
self._animator.start()
self._scale = scale

View File

@ -39,6 +39,10 @@ class Animator(gobject.GObject):
def add(self, animation):
self._animations.append(animation)
def remove_all(self):
self.stop()
self._animations = []
def start(self):
if self._timeout_sid:
self.stop()
@ -51,7 +55,7 @@ class Animator(gobject.GObject):
if self._timeout_sid:
gobject.source_remove(self._timeout_sid)
self._timeout_sid = 0
self.emit('completed')
self.emit('completed')
def _next_frame_cb(self):
current_time = min(self._time, time.time() - self._start_time)