openlp/demo.py

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# -*- coding: utf-8 -*-
# vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4
###############################################################################
# OpenLP - Open Source Lyrics Projection #
# --------------------------------------------------------------------------- #
# Copyright (c) 2008-2009 Raoul Snyman #
# Portions copyright (c) 2008-2009 Martin Thompson, Tim Bentley, Carsten #
# Tinggaard, Jon Tibble, Jonathan Corwin, Maikel Stuivenberg, Scott Guerrieri #
# --------------------------------------------------------------------------- #
# 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; version 2 of the License. #
# #
# 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., 59 #
# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
###############################################################################
import sys
import time
from PyQt4 import QtGui, QtCore
from openlp.core import Renderer
from openlp.theme import Theme
words="""How sweet the name of Jesus sounds
In a believer's ear!
It soothes his sorrows, heals his wounds,
And drives away his fear.
"""
class TstFrame(QtGui.QMainWindow):
"""
We simply derive a new class of QMainWindow
"""
def __init__(self, *args, **kwargs):
"""
Create the DemoPanel.
"""
QtGui.QMainWindow.__init__(self)
self.resize(1024, 768)
self.size = (1024, 768)
self.v = 0
self._font = QtGui.QFont(u'Decorative', 32)
self.framecount = 0
self.totaltime = 0
self.dir = 1
self.y = 1
self.frame = QtGui.QFrame()
self.setCentralWidget(self.frame)
self.r = Renderer()
self.r.set_theme(Theme(u'demo_theme.xml'))
self.r.set_text_rectangle(self.frame.frameRect())
self.r.set_paint_dest(self)
self.r.set_words_openlp(words)
def timerEvent(self, event):
"""
Update the form on a timer event.
``event``
The event which triggered this update.
"""
self.update()
def paintEvent(self, event):
"""
Repaint the canvas.
``event``
The event which triggered this repaint.
"""
self.r.set_text_rectangle(self.frame.frameRect())
self.r.scale_bg_image()
t1 = time.clock()
self.r.render_screen(0)
t2 = time.clock()
deltat = t2 - t1
self.totaltime += deltat
self.framecount += 1
print "Timing result: %5.3ffps" %(self.framecount/float(self.totaltime))
class Demo(object):
"""
The demo application itself.
"""
def __init__(self):
"""
Construct the application.
"""
app = QtGui.QApplication(sys.argv)
main = TstFrame()
main.show()
sys.exit(app.exec_())
if __name__=="__main__":
"""
Run the demo.
"""
t = Demo()