345 lines
12 KiB
Python
345 lines
12 KiB
Python
# -*- coding: utf-8-*-
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"""
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Module : QPanda3DWidget
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Author : Saifeddine ALOUI
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Description :
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This is the QWidget to be inserted in your standard PyQt5 application.
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It takes a Panda3DWorld object at init time.
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You should first create the Panda3DWorkd object before creating this widget.
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"""
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# PyQt imports
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from PyQt5 import QtWidgets, QtGui
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from PyQt5.QtCore import *
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from PyQt5.QtGui import *
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from PyQt5.QtWidgets import *
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from direct.task.TaskManagerGlobal import taskMgr
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# Panda imports
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from panda3d.core import Texture, WindowProperties, CallbackGraphicsWindow
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from panda3d.core import loadPrcFileData
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from QPanda3D.QPanda3D_Buttons_Translation import QPanda3D_Button_translation
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from QPanda3D.QPanda3D_Keys_Translation import QPanda3D_Key_translation
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from QPanda3D.QPanda3D_Modifiers_Translation import QPanda3D_Modifier_translation
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__all__ = ["QPanda3DWidget"]
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class QPanda3DSynchronizer(QTimer):
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def __init__(self, qPanda3DWidget, FPS=60):
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QTimer.__init__(self)
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self.qPanda3DWidget = qPanda3DWidget
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dt = 1000 / FPS
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self.setInterval(int(dt))
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self.timeout.connect(self.tick)
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# def tick(self):
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# taskMgr.step()
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# self.qPanda3DWidget.update()
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def tick(self):
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try:
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taskMgr.step()
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self.qPanda3DWidget.update()
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except:
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# 静默处理所有异常，包括 has_mat() 断言错误
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pass
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def get_panda_key_modifiers(evt):
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panda_mods = []
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qt_mods = evt.modifiers()
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for qt_mod, panda_mod in QPanda3D_Modifier_translation.items():
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if (qt_mods & qt_mod) == qt_mod:
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panda_mods.append(panda_mod)
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return panda_mods
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def get_panda_key_modifiers_prefix(evt):
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# join all modifiers (except NoModifier, which is None) with '-'
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prefix = "-".join([mod for mod in get_panda_key_modifiers(evt) if mod is not None])
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# if the prefix is not empty, append a '-'
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if prefix:
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prefix += '-'
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return prefix
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class QPanda3DWidget(QWidget):
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"""
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An interactive panda3D QWidget
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Parent : Parent QT Widget
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FPS : Number of frames per socond to refresh the screen
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debug: Switch printing key events to console on/off
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"""
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def __init__(self, panda3DWorld, parent=None, FPS=60, debug=False):
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QWidget.__init__(self, parent)
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self.rp_sync_requested = False
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# set fixed geometry
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self.panda3DWorld = panda3DWorld
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self.panda3DWorld.set_parent(self)
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# Setup a timer in Qt that runs taskMgr.step() to simulate Panda's own main loop
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# pandaTimer = QTimer(self)
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# pandaTimer.timeout.connect()
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# pandaTimer.start(0)
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self.setFocusPolicy(Qt.StrongFocus)
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# Setup another timer that redraws this widget in a specific FPS
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# redrawTimer = QTimer(self)
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# redrawTimer.timeout.connect(self.update)
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# redrawTimer.start(1000/FPS)
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self.paintSurface = QPainter()
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self.rotate = QTransform()
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self.rotate.rotate(180)
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self.out_image = QImage()
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size = self.panda3DWorld.cam.node().get_lens().get_film_size()
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self.initial_film_size = QSizeF(size.x, size.y)
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self.initial_size = self.size()
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self.synchronizer = QPanda3DSynchronizer(self, FPS)
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self.synchronizer.start()
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self.debug = debug
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def mousePressEvent(self, evt):
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button = evt.button()
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try:
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b = "{}{}".format(get_panda_key_modifiers_prefix(evt), QPanda3D_Button_translation[button])
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if self.debug:
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print(b)
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messenger.send(b,[{"x":evt.x(),"y":evt.y()}])
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except:
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print("Unimplemented button. Please send an issue on github to fix this problem")
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def mouseMoveEvent(self, evt:QtGui.QMouseEvent):
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button = evt.button()
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try:
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b = "mouse-move"
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if self.debug:
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print(b)
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messenger.send(b,[{"x":evt.x(),"y":evt.y()}])
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except:
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print("Unimplemented button. Please send an issue on github to fix this problem")
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def mouseReleaseEvent(self, evt):
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button = evt.button()
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try:
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b = "{}{}-up".format(get_panda_key_modifiers_prefix(evt), QPanda3D_Button_translation[button])
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if self.debug:
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print(b)
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messenger.send(b,[{"x":evt.x(),"y":evt.y()}])
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except:
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print("Unimplemented button. Please send an issue on github to fix this problem")
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def wheelEvent(self, evt):
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delta = evt.angleDelta().y()
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try:
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if self.debug:
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print(f"wheel {delta}")
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messenger.send('wheel',[{"delta":delta}])
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except:
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print("Unimplemented button. Please send an issue on github to fix this problem")
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def keyPressEvent(self, evt):
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key = evt.key()
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try:
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k = "{}{}".format(get_panda_key_modifiers_prefix(evt), QPanda3D_Key_translation[key])
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if self.debug:
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print(k)
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messenger.send(k)
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except:
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print("Unimplemented key. Please send an issue on github to fix this problem")
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def keyReleaseEvent(self, evt):
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key = evt.key()
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try:
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k = "{}{}-up".format(get_panda_key_modifiers_prefix(evt), QPanda3D_Key_translation[key])
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if self.debug:
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print(k)
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messenger.send(k)
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except:
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print("Unimplemented key. Please send an issue on github to fix this problem")
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def resizeEvent(self, evt):
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width = evt.size().width()
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height = evt.size().height()
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#print(f"width:{width}")
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#print(f"height:{height}")
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from Panda3DWorld import resize_buffer
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#resize_buffer(width, height)
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lens = self.panda3DWorld.cam.node().get_lens()
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# lens.set_film_size(self.initial_film_size.width() * evt.size().width() / self.initial_size.width(),
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# self.initial_film_size.height() * evt.size().height() / self.initial_size.height())
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#self.sync_panda3d_window_size(width, height)
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#self.panda3DWorld.buff.setSize(evt.size().width(), evt.size().height())
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def minimumSizeHint(self):
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return QSize(400, 300)
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# Use the paint event to pull the contents of the panda texture to the widget
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# def paintEvent(self, event):
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# if self.panda3DWorld.screenTexture.mightHaveRamImage():
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# tex = self.panda3DWorld.screenTexture
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# gsg = base.win.getGsg()
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# #self.panda3DWorld.screenTexture.store(gsg)
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# base.graphicsEngine.extractTextureData(tex, gsg)
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# self.panda3DWorld.screenTexture.setFormat(Texture.FRgba32)
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# data = self.panda3DWorld.screenTexture.getRamImage().getData()
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# img = QImage(data, self.panda3DWorld.screenTexture.getXSize(), self.panda3DWorld.screenTexture.getYSize(),
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# QImage.Format_ARGB32).mirrored()
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# self.paintSurface.begin(self)
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# self.paintSurface.drawImage(0, 0, img)
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# self.paintSurface.end()
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# def paintEvent(self, event):
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# tex = self.panda3DWorld.qt_output_tex
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#
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# gsg = base.win.getGsg()
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#
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#
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# if not self.rp_sync_requested:
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# base.graphicsEngine.extractTextureData(tex, gsg)
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# self.rp_sync_requested = True
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# self.update()
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# return
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#
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# if tex.hasRamImage():
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# data = tex.getRamImage().getData()
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# width = tex.getXSize()
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# height = tex.getYSize()
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#
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# # ✅ 应该 data 长度 = width * height * 4
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# img = QImage(data, width, height, QImage.Format_ARGB32).mirrored()
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#
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# painter = QPainter(self)
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# painter.drawImage(0, 0, img)
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# painter.end()
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#
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# self.rp_sync_requested = False
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# else:
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# print("⚠️ Texture has no RAM image yet, retrying next frame")
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# self.rp_sync_requested = False
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# self.update()
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# def paintEvent(self, event):
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# tex = self.panda3DWorld.qt_output_tex
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#
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# gsg = base.win.getGsg()
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#
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# if not tex.hasRamImage():
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# base.graphicsEngine.extractTextureData(tex, gsg)
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# self.update() # 请求下一帧更新
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# return
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#
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# data = tex.getRamImage().getData()
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# width = tex.getXSize()
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# height = tex.getYSize()
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# expected_len = width * height * 4
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#
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# if len(data) != expected_len:
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# print(f"⚠️ 像素数据长度异常（{len(data)} != {expected_len}），跳过绘制")
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# self.update()
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# return
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#
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# # 一切正常才绘制
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# img = QImage(data, width, height, QImage.Format_ARGB32).mirrored()
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#
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# painter = QPainter(self)
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# painter.drawImage(0, 0, img)
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# painter.end()
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def paintEvent(self, event):
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tex = self.panda3DWorld.qt_output_tex
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gsg = base.win.getGsg()
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if not gsg:
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self.update()
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return
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if not tex.hasRamImage():
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base.graphicsEngine.extractTextureData(tex, gsg)
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self.update()
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return
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data = tex.getRamImage().getData()
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tex_width = tex.getXSize()
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tex_height = tex.getYSize()
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expected_len = tex_width * tex_height * 4
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if len(data) != expected_len:
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print(f"⚠️ 像素数据长度异常（{len(data)} != {expected_len}），跳过绘制")
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self.update()
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return
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img = QImage(data, tex_width, tex_height, QImage.Format_ARGB32).mirrored()
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widget_width = self.width()
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widget_height = self.height()
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painter = QPainter(self)
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# 【保持宽高比的缩放】
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scaled_img = img.scaled(widget_width, widget_height, Qt.KeepAspectRatio, Qt.SmoothTransformation)
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# 居中绘制
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x_offset = (widget_width - scaled_img.width()) // 2
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y_offset = (widget_height - scaled_img.height()) // 2
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painter.drawImage(x_offset, y_offset, scaled_img)
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painter.end()
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def sync_panda3d_window_size(self, width, height):
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"""同步 Panda3D 窗口尺寸到 Qt 窗口尺寸"""
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try:
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from panda3d.core import WindowProperties, LVecBase2i
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# 确保尺寸是4的倍数（RenderPipeline 要求）
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adjusted_width = width - width % 4
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adjusted_height = height - height % 4
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# 更新窗口属性
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props = WindowProperties()
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props.setSize(adjusted_width, adjusted_height)
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# 对于 offscreen 渲染，直接更新窗口属性
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if self.panda3DWorld.win:
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self.panda3DWorld.win.request_properties(props)
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# 手动触发 RenderPipeline 的尺寸更新逻辑
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if hasattr(self.panda3DWorld, 'render_pipeline'):
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# 更新全局分辨率
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from RenderPipelineFile.rpcore.globals import Globals
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Globals.native_resolution = LVecBase2i(adjusted_width, adjusted_height)
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# 重新计算渲染分辨率
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self.panda3DWorld.render_pipeline._compute_render_resolution()
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# 通知各个管理器处理尺寸变化
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self.panda3DWorld.render_pipeline.light_mgr.compute_tile_size()
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self.panda3DWorld.render_pipeline.stage_mgr.handle_window_resize()
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if hasattr(self.panda3DWorld.render_pipeline, 'debugger'):
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self.panda3DWorld.render_pipeline.debugger.handle_window_resize()
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# 触发插件的窗口尺寸变化钩子
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self.panda3DWorld.render_pipeline.plugin_mgr.trigger_hook("window_resized")
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print(f"Panda3D 窗口尺寸已同步为: {adjusted_width} x {adjusted_height}")
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except Exception as e:
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print(f"同步 Panda3D 窗口尺寸失败: {str(e)}")
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