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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 random
from gettext import gettext as _
# Import PyGTK.
import gobject, pygtk, gtk, pango
class TitleScene(gtk.DrawingArea):
# Maximum portion of the screen the background can fill vertically.
BACKGROUND_HEIGHT_RATIO = 0.6
# Border from top right of screen to draw title at.
TITLE_OFFSET = (20, 30)
# Font used to display the title.
TITLE_FONT = 'Times 45'
def __init__(self):
gtk.DrawingArea.__init__(self)
pbuf = gtk.gdk.pixbuf_new_from_file('images/main-background.jpg')
width_ratio = float(gtk.gdk.screen_width()) / pbuf.get_width()
height_ratio = float(gtk.gdk.screen_height()*TitleScene.BACKGROUND_HEIGHT_RATIO) / pbuf.get_height()
ratio = min(width_ratio, height_ratio)
self.backgroundpixbuf = pbuf.scale_simple(int(pbuf.get_width()*ratio), int(pbuf.get_height()*ratio), gtk.gdk.INTERP_BILINEAR)
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]
# Background picture.
x = (bounds.width - self.backgroundpixbuf.get_width())/2
self.window.draw_pixbuf(
gc, self.backgroundpixbuf, 0, 0,
x, 0, self.backgroundpixbuf.get_width(), self.backgroundpixbuf.get_height())
# Animated Typing Turtle title.
pc = self.create_pango_context()
layout = self.create_pango_layout('')
layout.set_font_description(pango.FontDescription(TitleScene.TITLE_FONT))
layout.set_text(self.title_original)
original_size = layout.get_size()
x = (bounds.width-original_size[0]/pango.SCALE)-TitleScene.TITLE_OFFSET[0]
y = TitleScene.TITLE_OFFSET[1]
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
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