在PyQt6窗口内渲染pyglet窗口?

Question

我正在尝试用python制作一个应用程序，其中可见窗口为pyglet。问题是，我需要图形能力和交互与HTML页面在同一时间。我将使用PyQt6与HTML通信。所以问题是，我如何得到一个PyQT6窗口内渲染Pyglet窗口?

我的当前代码:

import pyglet
from pyglet.gl import *
import sys
from PyQt6.QtWidgets import QApplication, QWidget
app = QApplication(sys.argv)
w = QWidget()
w.resize(250, 200)
w.move(300, 300)
w.setWindowTitle('Simple')
w.show()
window = pyglet.window.Window(800, 600, "Radium")
@window.event
def on_draw():
window.clear()
# Render window with OpenGL
# ...
pyglet.app.run()
sys.exit(app.exec())

Answer 1

我不确定是否可以在Pyglet窗口内渲染PyQT。它有自己的渲染和绘图系统，无法在需要将其集成到pyglet窗口的低级别访问。

你可以在QT中使用OpenGL(通过扩展，使用pyglet)，但这也意味着你需要在这两方面都有经验，才能真正使它工作得很好。

我用PyQt6做了一个可运行的例子:

import sys
import pyglet
#from PyQt5 import QtGui
#from PyQt5 import QtCore, QtWidgets
#from PyQt5.QtOpenGL import QGLWidget as OpenGLWidget
from PyQt6 import QtGui
from PyQt6 import QtCore, QtWidgets
from PyQt6.QtOpenGLWidgets import QOpenGLWidget as OpenGLWidget
from pyglet.gl import glClear, GL_COLOR_BUFFER_BIT, GL_DEPTH_BUFFER_BIT
import random

"""An example showing how to use pyglet in QT, utilizing the OGLWidget.
Since this relies on the QT Window, any events called on Pyglet Window
will NOT be called.

This includes mouse, keyboard, tablet, and anything else relating to the Window
itself. These must be handled by QT itself.

This just allows user to create and use pyglet related things such as sprites, shapes,
batches, clock scheduling, sound, etc.           
"""
class MainWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super().__init__()
self.setWindowTitle("Pyglet and QT Example")
self.shapes = []
width, height = 640, 480
self.opengl = PygletWidget(width, height)
self.sprite_button = QtWidgets.QPushButton('Create Rectangle', self)
self.sprite_button.clicked.connect(self.create_sprite_click)
self.clear_sprite_button = QtWidgets.QPushButton('Clear Shapes', self)
self.clear_sprite_button.clicked.connect(self.clear_sprite_click)

mainLayout = QtWidgets.QVBoxLayout()
mainLayout.addWidget(self.opengl)
mainLayout.addWidget(self.sprite_button)
mainLayout.addWidget(self.clear_sprite_button)
self.setLayout(mainLayout)
def create_sprite_click(self):
gl_width, gl_height = self.opengl.size().width(), self.opengl.size().height()

width = random.randint(50, 100)
height = random.randint(50, 100)

x = random.randint(0, gl_width-width)
y = random.randint(0, gl_height-height)
color = (random.randint(0, 255), random.randint(0, 255), random.randint(0, 255))

shape = pyglet.shapes.Rectangle(x, y, width, height, color=color, batch=self.opengl.batch)
shape.opacity = random.randint(100, 255)
self.shapes.append(shape)

def clear_sprite_click(self):
for shape in self.shapes:
shape.delete()

self.shapes.clear()

class PygletWidget(OpenGLWidget):
def __init__(self, width, height, parent=None):
super().__init__(parent)
self.setMinimumSize(width, height)
self.timer = QtCore.QTimer()
self.timer.timeout.connect(self._pyglet_update)
self.timer.setInterval(0)
self.timer.start()
def _pyglet_update(self):
# Tick the pyglet clock, so scheduled events can work.
pyglet.clock.tick()  

# Force widget to update, otherwise paintGL will not be called.
self.update()  # self.updateGL() for pyqt5
def paintGL(self):
"""Pyglet equivalent of on_draw event for window"""
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)

self.batch.draw()
def initializeGL(self):
"""Call anything that needs a context to be created."""
self.batch = pyglet.graphics.Batch()
size = self.size()
w, h = size.width(), size.height()

self.projection = pyglet.window.Projection2D()
self.projection.set(w, h, w, h)

if __name__ == '__main__':    
app = QtWidgets.QApplication(sys.argv)    
window = QtWidgets.QMainWindow()
ui = MainWidget(window)    
ui.show()  # Calls initializeGL. Do not do any GL stuff before this is called.
app.exec() # exec_ in 5.