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# Copyright 2008 by Kate Scheppke and Wade Brainerd.
# This file is part of Typing Turtle.
#
# Typing Turtle 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.
#
# Typing Turtle 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 Typing Turtle. If not, see <http://www.gnu.org/licenses/>.
# Import standard Python modules.
import logging, os, math, time, copy, json, locale, datetime, random, re, glob
from gettext import gettext as _
# Import PyGTK.
import gobject, pygtk, gtk, pango
# Import Sugar UI modules.
import sugar.activity.activity
from sugar.graphics import *
# Import activity modules.
import lessonscreen, medalscreen
class TitleScene(gtk.DrawingArea):
def __init__(self):
gtk.DrawingArea.__init__(self)
bundle = sugar.activity.activity.get_bundle_path()
self.backgroundpixbuf = gtk.gdk.pixbuf_new_from_file(bundle + '/images/main-background.png')
self.set_size_request(self.backgroundpixbuf.get_width(), self.backgroundpixbuf.get_height())
self.connect("expose-event", self.expose_cb)
self.title_original = _('Typing Turtle')
self.title_src = self.title_original
self.title_text = ''
self.title_counter = 50
gobject.timeout_add(10, self.timer_cb)
def expose_cb(self, area, event):
bounds = self.get_allocation()
gc = self.get_style().fg_gc[gtk.STATE_NORMAL]
self.window.draw_pixbuf(
gc, self.backgroundpixbuf,
event.area.x, event.area.y,
event.area.x, event.area.y, event.area.width, event.area.height)
# Animated Typing Turtle title.
pc = self.create_pango_context()
layout = self.create_pango_layout('')
layout.set_font_description(pango.FontDescription('Times 60'))
layout.set_text(self.title_original)
original_size = layout.get_size()
x = (bounds.width-original_size[0]/pango.SCALE)/2
y = 10
layout.set_text(self.title_text)
self.window.draw_layout(gc, x, y, layout)
def timer_cb(self):
self.title_counter -= 1
if self.title_counter == 0:
if len(self.title_src) > 0:
self.title_text += self.title_src[0]
self.title_src = self.title_src[1:]
self.queue_draw()
self.title_counter = random.randint(1, 5)
return True
class MainScreen(gtk.VBox):
def __init__(self, activity):
gtk.VBox.__init__(self)
self.activity = activity
# Build background.
self.titlescene = TitleScene()
# Build lessons list.
self.lessonbox = gtk.HBox()
nexticon = sugar.graphics.icon.Icon(icon_name='go-next')
self.nextlessonbtn = gtk.Button()
self.nextlessonbtn.add(nexticon)
self.nextlessonbtn.connect('clicked', self.next_lesson_clicked_cb)
previcon = sugar.graphics.icon.Icon(icon_name='go-previous')
self.prevlessonbtn = gtk.Button()
self.prevlessonbtn.add(previcon)
self.prevlessonbtn.connect('clicked', self.prev_lesson_clicked_cb)
bundle_path = sugar.activity.activity.get_bundle_path()
code = locale.getlocale(locale.LC_ALL)[0]
path = bundle_path + '/lessons/' + code
# Find all .lesson files in ./lessons/en_US/ for example.
self.lessons = []
for f in glob.iglob(path + '/*.lesson'):
fd = open(f, 'r')
try:
lesson = json.read(fd.read())
self.lessons.append(lesson)
finally:
fd.close()
self.lessons.sort(lambda x, y: x['level'] - y['level'])
lessonscrollbox = gtk.HBox()
lessonscrollbox.set_spacing(10)
lessonscrollbox.pack_start(self.prevlessonbtn, False)
lessonscrollbox.pack_start(self.lessonbox)
lessonscrollbox.pack_start(self.nextlessonbtn, False)
self.pack_start(self.titlescene, False, True, 10)
self.pack_start(lessonscrollbox, True)
self.show_highest_available_lesson()
def show_highest_available_lesson(self):
highest_index = 0
for index in xrange(0, len(self.lessons)):
if self.lessons[index]['requiredlevel'] <= self.activity.data['level']:
highest_index = max(highest_index, index)
print "showing lesson %d" % highest_index
self.show_lesson(highest_index)
def show_lesson(self, index):
# Clear all widgets in the lesson box.
for w in self.lessonbox:
self.lessonbox.remove(w)
self.prevlessonbtn.set_sensitive(index > 0)
self.nextlessonbtn.set_sensitive(index < len(self.lessons)-1)
lesson = self.lessons[index]
self.lesson_index = index
self.visible_lesson = lesson
# Create the lesson button.
label = gtk.Label()
label.set_alignment(0.0, 0.25)
label.set_markup("<span size='15000'><b>" + lesson['name'] + "</b></span>\n" +
"<span size='10000'>" + lesson['description'] + "</span>")
lessonbtn = gtk.Button()
lessonbtn.add(label)
lessonbtn.connect('clicked', self.lesson_clicked_cb)
# Create the medal image.
medalimage = gtk.Image()
medal_type = 'none'
if self.activity.data['medals'].has_key(lesson['name']):
medal_type = self.activity.data['medals'][lesson['name']]['type']
bundle = sugar.activity.activity.get_bundle_path()
images = {
'none': bundle+'/images/no-medal.jpg',
'bronze': bundle+'/images/bronze-medal.jpg',
'silver': bundle+'/images/silver-medal.jpg',
'gold': bundle+'/images/gold-medal.jpg'
}
medalimage.set_from_file(images[medal_type])
medalbtn = gtk.Button()
medalbtn.add(medalimage)
medalbtn.connect('clicked', self.medal_clicked_cb)
# Disable the buttons unless available.
lesson_available = self.activity.data['level'] >= lesson['requiredlevel']
lessonbtn.set_sensitive(lesson_available)
medalbtn.set_sensitive(lesson_available)
self.lessonbox.pack_start(lessonbtn, True)
self.lessonbox.pack_start(medalbtn, False)
self.lessonbox.show_all()
def next_lesson_clicked_cb(self, widget):
self.show_lesson(self.lesson_index+1)
def prev_lesson_clicked_cb(self, widget):
self.show_lesson(self.lesson_index-1)
def lesson_clicked_cb(self, widget):
self.activity.push_screen(lessonscreen.LessonScreen(self.visible_lesson, self.activity))
def medal_clicked_cb(self, widget):
if self.activity.data['medals'].has_key(self.visible_lesson['name']):
medal = self.activity.data['medals'][self.visible_lesson['name']]
self.activity.push_screen(medalscreen.MedalScreen(medal, self.activity))
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