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 import cairo
from sugar.graphics.menushell import MenuShell from sugar.graphics.menushell import MenuShell
from sugar.graphics import units
import sugar import sugar
from view.home.MeshBox import MeshBox from view.home.MeshBox import MeshBox
from view.home.HomeBox import HomeBox from view.home.HomeBox import HomeBox
from view.home.FriendsBox import FriendsBox from view.home.FriendsBox import FriendsBox
from view.home.transitionbox import TransitionBox
_HOME_PAGE = 0 _HOME_PAGE = 0
_FRIENDS_PAGE = 1 _FRIENDS_PAGE = 1
_MESH_PAGE = 2 _MESH_PAGE = 2
_TRANSITION_PAGE = 3
class HomeWindow(gtk.Window): class HomeWindow(gtk.Window):
def __init__(self, shell): def __init__(self, shell):
gtk.Window.__init__(self) gtk.Window.__init__(self)
self._shell = shell self._shell = shell
self._active = False self._active = False
self._level = sugar.ZOOM_HOME
self.set_default_size(gtk.gdk.screen_width(), self.set_default_size(gtk.gdk.screen_width(),
gtk.gdk.screen_height()) gtk.gdk.screen_height())
@ -68,6 +73,15 @@ class HomeWindow(gtk.Window):
self._nb.append_page(canvas) self._nb.append_page(canvas)
canvas.show() 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): def _key_release_cb(self, widget, event):
keyname = gtk.gdk.keyval_name(event.keyval) keyname = gtk.gdk.keyval_name(event.keyval)
if keyname == "Alt_L": if keyname == "Alt_L":
@ -88,11 +102,25 @@ class HomeWindow(gtk.Window):
self._update_mesh_state() self._update_mesh_state()
def set_zoom_level(self, level): def set_zoom_level(self, level):
self._level = level
self._nb.set_current_page(_TRANSITION_PAGE)
if level == sugar.ZOOM_HOME: if level == sugar.ZOOM_HOME:
self._nb.set_current_page(_HOME_PAGE) scale = units.XLARGE_ICON_SCALE
elif level == sugar.ZOOM_FRIENDS: elif level == sugar.ZOOM_FRIENDS:
self._nb.set_current_page(_FRIENDS_PAGE) scale = units.LARGE_ICON_SCALE
elif level == sugar.ZOOM_MESH: 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._nb.set_current_page(_MESH_PAGE)
self._update_mesh_state() 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): def add(self, animation):
self._animations.append(animation) self._animations.append(animation)
def remove_all(self):
self.stop()
self._animations = []
def start(self): def start(self):
if self._timeout_sid: if self._timeout_sid:
self.stop() self.stop()
@ -51,7 +55,7 @@ class Animator(gobject.GObject):
if self._timeout_sid: if self._timeout_sid:
gobject.source_remove(self._timeout_sid) gobject.source_remove(self._timeout_sid)
self._timeout_sid = 0 self._timeout_sid = 0
self.emit('completed') self.emit('completed')
def _next_frame_cb(self): def _next_frame_cb(self):
current_time = min(self._time, time.time() - self._start_time) current_time = min(self._time, time.time() - self._start_time)