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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# activity.py
#
# Copyright 2012 S. Daniel Francis <francis@sugarlabs.org>,
# Agustin Zubiaga <aguz@sugarlabs.org>
#
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
import os
import tempfile
import zipfile
import json
import logging
logger = logging.getLogger()
import gtk
import gobject
from sugar.activity import activity
from sugar.graphics.objectchooser import ObjectChooser
from sugar import mime
from gettext import gettext as _
from StringIO import StringIO
import animation
from frames_tray import FramesTray
from toolbars import AnimateToolbarBox
#from toolbars import FramesToolbar
class AnimateActivity(activity.Activity):
def __init__(self, handler):
super(AnimateActivity, self).__init__(handler, True)
self.max_participants = 1
self._toolbarbox = AnimateToolbarBox(self)
self.set_toolbar_box(self._toolbarbox)
self._toolbarbox.show_all()
canvas = gtk.EventBox()
canvas.modify_bg(gtk.STATE_NORMAL, gtk.gdk.color_parse('white'))
self._animation = None
self._animation_frames = []
self.animation_mode = animation.MODE_RETURN
self.modes_buttons = self._toolbarbox.modes_buttons
self._frames_tray = FramesTray()
self._frames_tray.connect("current-frame-changed",
self._current_frame_changed_cb)
# self._frames_tray.connect("move", self._move_cb)
# self._frames_tray.connect('get-current-frame',
# lambda w: self._animation.get_current_frame())
self._frames_tray.show()
self.set_tray(self._frames_tray, gtk.POS_BOTTOM)
# self._frames_toolbar = FramesToolbar()
# self._frames_toolbar.connect('go-up', self._frames_list.move_up)
# self._frames_toolbar.connect('go-down', self._frames_list.move_down)
# vbox.pack_end(self._frames_toolbar, False, True, 0)
# canvas.pack_end(vbox, False, True, 0)
canvas.connect("expose-event", self.__canvas_expose_cb)
canvas.show()
self.set_canvas(canvas)
self.show()
def _move_cb(self, widget, index, new_index):
self._animation.move(index, new_index)
def _current_frame_changed_cb(self, widget, index):
logger.debug('%d' % index)
self._animation.set_current_frame(index)
def write_file(self, file_path):
self.metadata["mime_type"] = "application/x-animate-activity"
zfile = zipfile.ZipFile(file_path, 'w')
temp_file_path = tempfile.mktemp()
temp_file = open(temp_file_path, "w")
temp_file_content = {"mode": self._animation.get_mode(),
"framerate": self._toolbarbox.get_fps()}
try:
json.dump(temp_file_content, temp_file)
finally:
temp_file.close()
zfile.write(temp_file_path, 'config')
frames_path = tempfile.mktemp()
count = 0
for i in self._animation.frames:
i.save(frames_path, 'png')
zfile.write(frames_path, 'frames/%d.png' % count)
count += 1
zfile.close()
os.remove(temp_file_path)
def read_file(self, file_path):
zfile = zipfile.ZipFile(file_path, 'r')
frames = zfile.namelist()
del(frames[frames.index('config')])
temp_frames_path = tempfile.mktemp()
for frame in frames:
frame_content = zfile.read(frame)
frame_file = open(temp_frames_path, 'w')
frame_file.write(frame_content)
frame_file.close()
pixbuf = gtk.gdk.pixbuf_new_from_file(temp_frames_path)
self._animation_frames.append(pixbuf)
str_io = StringIO(zfile.read('config'))
zfile.close()
try:
options = json.load(str_io)
finally:
str_io.close()
mode = options['mode']
self._animation_mode = mode
self.modes_buttons[mode].set_active(True)
self._toolbarbox.set_fps(options['framerate'])
def _remove_frame(self, widget):
self._frames_tray.remove_selected_frame()
self._animation.remove_current_frame()
def _add_frame(self, widget):
chooser = ObjectChooser(parent=self,
what_filter=mime.GENERIC_TYPE_IMAGE)
result = chooser.run()
if result == gtk.RESPONSE_ACCEPT:
jobject = chooser.get_selected_object()
pixbuf = gtk.gdk.pixbuf_new_from_file(jobject.get_file_path())
self._animation.add_frame(pixbuf)
self._frames_tray.add_frame(pixbuf)
else:
return
def _fps_changed_cb(self, widget):
fps = widget.get_adjustment().get_value()
self._animation.set_fps(fps)
def _set_return_mode(self, widget):
self._animation.set_mode(animation.MODE_RETURN)
def _set_normal_mode(self, widget):
self._animation.set_mode(animation.MODE_NORMAL)
def _set_pingpong_mode(self, widget):
self._animation.set_mode(animation.MODE_PING_PONG)
def _previous_frame(self, widget):
self._animation.back()
def _next_frame(self, widget):
self._animation.next()
def _run_pause_animation(self, widget):
if not self._animation._running:
self._animation.run()
widget.set_icon("media-playback-pause")
widget.set_tooltip(_("Pause animation"))
elif self._animation._running:
self._animation.pause()
widget.set_icon("media-playback-start")
widget.set_tooltip(_("Run animation"))
def _get_animation_size(self):
canvas_allocation = self.get_canvas().get_allocation()
tray_allocation = self._frames_tray.get_allocation()
width = canvas_allocation[-2] - tray_allocation[-2]
height = canvas_allocation[-1]
return width, height
def __canvas_expose_cb(self, canvas, event):
x, y, width, height = event.area
if not self._animation:
self._animation = animation.Animation(width, height)
if self._animation_mode:
self._animation.set_mode(self._animation_mode)
#self._animation.connect('running',
# self._frames_toolbar.set_buttons_sensitive)
for pixbuf in self._animation_frames:
self._animation.add_frame(pixbuf)
self._frames_tray.add_frame(pixbuf)
self._animation.set_fps(self._toolbarbox.get_fps())
self._animation.connect("current-frame-updated",
self._current_frame_updated_cb)
self._animation.show_all()
self._animation_mode = None
canvas.add(self._animation)
self._animation.set_size(width,
height)
def _current_frame_updated_cb(self, widget, index):
if widget.frames_reverse:
index = len(widget.frames) - 1 - index
self._frames_tray.select_frame(index)
return index
def _view_fullscreen(self, widget):
self._frames_tray.hide()
self._animation.set_size(gtk.gdk.screen_width(),
gtk.gdk.screen_height())
activity.Activity.fullscreen(self)
def unfullscreen(self):
self._frames_tray.show()
width, height = self._get_animation_size()
self._animation.set_size(width, height)
gobject.idle_add(lambda: activity.Activity.unfullscreen(self))
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