def testIt(self): w = QGLWidget() w.makeCurrent() b = QGLBuffer() b.setUsagePattern(QGLBuffer.DynamicDraw) self.assertTrue(b.create()) self.assertTrue(b.bufferId() != 0) self.assertTrue(b.bind()) data = QByteArray(py3k.b("12345")) b.allocate(data) self.assertEqual(b.size(), data.size()) m = b.map(QGLBuffer.ReadOnly) if m: self.assertEqual(m, py3k.buffer(py3k.b(data.data()))) b.unmap() m = b.map(QGLBuffer.ReadWrite) m[3] = py3k.b('A')[0] b.unmap() result, rdata = b.read(3, 1) self.assertTrue(result) self.assertEqual(py3k.b('A'), rdata.data()) else: print(" memory mapping is not possible in this OpenGL implementation.") b.release()
def testIt(self): w = QGLWidget() w.makeCurrent() b = QGLBuffer() b.setUsagePattern(QGLBuffer.DynamicDraw) self.assertTrue(b.create()) self.assertTrue(b.bufferId() != 0) self.assertTrue(b.bind()) data = QByteArray("12345") b.allocate(data) self.assertEqual(b.size(), data.size()) m = b.map(QGLBuffer.ReadOnly) if m: self.assertEqual(m, py3k.buffer(py3k.b(data.data()))) b.unmap() m = b.map(QGLBuffer.ReadWrite) m[3] = py3k.b('A') b.unmap() result, rdata = b.read(3, 1) self.assertTrue(result) self.assertEqual(py3k.b('A'), rdata.data()) else: print(" memory mapping is not possible in this OpenGL implementation.") b.release()
def __init__(self): QGLWidget.__init__(self, None) self.setMinimumSize(640, 480) self.makeCurrent() self.initted = False self.initializeGL() self.solution = None
def __init__(self, init_callback: callable, resize_callback: callable, draw_callback: callable): super().__init__(QGLWidget()) self._layout.addWidget(self._instance) self._instance.initializeGL = init_callback self._instance.resizeGL = resize_callback self._instance.paintGL = draw_callback self._instance.setFocusPolicy(Qt.StrongFocus) self._key_buf = [False for _ in range(256)]
def __init__(self, parent=None, **kw): # the current button self._ActiveButton = Qt.NoButton # private attributes self.__saveX = 0 self.__saveY = 0 self.__saveModifiers = Qt.NoModifier self.__saveButtons = Qt.NoButton self.__wheelDelta = 0 # do special handling of some keywords: # stereo, rw try: stereo = bool(kw['stereo']) except KeyError: stereo = False try: rw = kw['rw'] except KeyError: rw = None # create base qt-level widget if QVTKRWIBase == "QWidget": if "wflags" in kw: wflags = kw['wflags'] else: wflags = Qt.WindowFlags() QWidget.__init__(self, parent, wflags | Qt.MSWindowsOwnDC) elif QVTKRWIBase == "QGLWidget": QGLWidget.__init__(self, parent) if rw: # user-supplied render window self._RenderWindow = rw else: self._RenderWindow = vtk.vtkRenderWindow() WId = self.winId() # Python2 if type(WId).__name__ == 'PyCObject': from ctypes import pythonapi, c_void_p, py_object pythonapi.PyCObject_AsVoidPtr.restype = c_void_p pythonapi.PyCObject_AsVoidPtr.argtypes = [py_object] WId = pythonapi.PyCObject_AsVoidPtr(WId) # Python3 elif type(WId).__name__ == 'PyCapsule': from ctypes import pythonapi, c_void_p, py_object, c_char_p pythonapi.PyCapsule_GetName.restype = c_char_p pythonapi.PyCapsule_GetName.argtypes = [py_object] name = pythonapi.PyCapsule_GetName(WId) pythonapi.PyCapsule_GetPointer.restype = c_void_p pythonapi.PyCapsule_GetPointer.argtypes = [py_object, c_char_p] WId = pythonapi.PyCapsule_GetPointer(WId, name) self._RenderWindow.SetWindowInfo(str(int(WId))) if stereo: # stereo mode self._RenderWindow.StereoCapableWindowOn() self._RenderWindow.SetStereoTypeToCrystalEyes() try: self._Iren = kw['iren'] except KeyError: self._Iren = vtk.vtkGenericRenderWindowInteractor() self._Iren.SetRenderWindow(self._RenderWindow) # do all the necessary qt setup self.setAttribute(Qt.WA_OpaquePaintEvent) self.setAttribute(Qt.WA_PaintOnScreen) self.setMouseTracking(True) # get all mouse events self.setFocusPolicy(Qt.WheelFocus) self.setSizePolicy(QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)) self._Timer = QTimer(self) self._Timer.timeout.connect(self.TimerEvent) self._Iren.AddObserver('CreateTimerEvent', self.CreateTimer) self._Iren.AddObserver('DestroyTimerEvent', self.DestroyTimer) self._Iren.GetRenderWindow().AddObserver('CursorChangedEvent', self.CursorChangedEvent) #Create a hidden child widget and connect its destroyed signal to its #parent ``Finalize`` slot. The hidden children will be destroyed before #its parent thus allowing cleanup of VTK elements. self._hidden = QWidget(self) self._hidden.hide() self._hidden.destroyed.connect(self.Finalize)
def toggleOpenGL(self): self.graphicsView.setViewport( QGLWidget(QGLFormat(QGL.SampleBuffers)) if self.openGlButton. isChecked() else QWidget())