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import sys, platform
try:
import sip
from PyQt4.QtCore import *
from PyQt4.QtGui import *
except ImportError:
print("Install PyQt4 and sip from Riverbank.")
from sfml import sf
class QSFMLCanvas(QWidget):
def __init__(self, parent, position, size, frameTime=0):
QWidget.__init__(self, parent)
self.initialized = False
w = size.width()
h = size.height()
self._HandledWindow = sf.HandledWindow()
self._HandledWindow.view.size = (w, h)
self.__dict__['draw'] = self._HandledWindow.draw
self.__dict__['clear'] = self._HandledWindow.clear
self.__dict__['view'] = self._HandledWindow.view
self.__dict__['display'] = self._HandledWindow.display
# setup some states to allow direct rendering into the widget
self.setAttribute(Qt.WA_PaintOnScreen)
self.setAttribute(Qt.WA_OpaquePaintEvent)
self.setAttribute(Qt.WA_NoSystemBackground)
# set strong focus to enable keyboard events to be received
self.setFocusPolicy(Qt.StrongFocus);
# setup the widget geometry
self.move(position);
self.resize(size);
# setup the timer
self.timer = QTimer()
self.timer.setInterval(frameTime)
def onInit(self): pass
def onUpdate(self): pass
def sizeHint(self):
return self.size()
def paintEngine(self):
# let the derived class do its specific stuff
self.onUpdate()
# display on screen
self.display()
def showEvent(self, event):
if not self.initialized:
# under X11, we need to flush the commands sent to the server
# to ensure that SFML will get an updated view of the windows
# create the SFML window with the widget handle
if platform.system() == 'Linux':
from ctypes import cdll
x11 = cdll.LoadLibrary("libX11.so")
display = sip.unwrapinstance(QX11Info.display())
x11.XFlush(display)
self._HandledWindow.create(self.winId())
# let the derived class do its specific stuff
self.onInit()
# setup the timer to trigger a refresh at specified framerate
self.connect(self.timer,SIGNAL('timeout()'), self, SLOT('repaint()'))
self.timer.start()
self.initialized = True
def paintEvent(self, event):
return None
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