TitleScene separated into its own module and resolution independent.

1 files changed, 92 insertions, 0 deletions

diff --git a/titlescene.py b/titlescene.py
new file mode 100644
index 0000000..297f633
--- /dev/null
+++ b/titlescene.py
@@ -0,0 +1,92 @@
+# 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(pbuf.get_width()*ratio, 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