EG/QMeta3D/QMeta3DWidget.py
2026-01-08 14:25:40 +08:00

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from PyQt5 import QtWidgets, QtGui
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from direct.task.TaskManagerGlobal import taskMgr
from QMeta3D.QMeta3D_Buttons_Translation import QMeta3D_Button_translation
from QMeta3D.QMeta3D_Keys_Translation import QMeta3D_Key_translation
from QMeta3D.QMeta3D_Modifiers_Translation import QMeta3D_Modifier_translation
__all__ = ["QMeta3DWidget"]
class QMeta3DSynchronizer(QTimer):
def __init__(self, qMeta3DWidget, FPS=60):
QTimer.__init__(self)
self.qMeta3DWidget = qMeta3DWidget
dt = 1000 / FPS
self.setInterval(int(dt))
self.timeout.connect(self.tick)
def tick(self):
try:
# 在渲染前清理可能损坏的TransformState对象
from panda3d.core import TransformState
TransformState.clear_cache()
taskMgr.step()
self.qMeta3DWidget.update()
except AssertionError as e:
# 专门处理 TransformState has_mat() 断言错误
if "has_mat" in str(e):
print(f"警告: 检测到TransformState断言错误已静默处理: {e}")
# 尝试恢复渲染状态
try:
# 强制清理缓存并重试
from panda3d.core import TransformState, RenderState
TransformState.clear_cache()
RenderState.clear_cache()
taskMgr.step()
self.qMeta3DWidget.update()
except:
pass
else:
# 重新抛出其他断言错误
raise
except Exception as e:
# 静默处理其他所有异常
print(f"警告: 检测到异常,已静默处理: {e}")
def get_panda_key_modifiers(evt):
panda_mods = []
qt_mods = evt.modifiers()
for qt_mod, panda_mod in QMeta3D_Modifier_translation.items():
if (qt_mods & qt_mod) == qt_mod:
panda_mods.append(panda_mod)
return panda_mods
def get_panda_key_modifiers_prefix(evt):
# join all modifiers (except NoModifier, which is None) with '-'
prefix = "-".join([mod for mod in get_panda_key_modifiers(evt) if mod is not None])
# if the prefix is not empty, append a '-'
if prefix:
prefix += '-'
return prefix
class QMeta3DWidget(QWidget):
def __init__(self, Meta3DWorld, parent=None, FPS=60, debug=False):
QWidget.__init__(self, parent)
self.rp_sync_requested = False
# set fixed geometry
self.Meta3DWorld = Meta3DWorld
self.Meta3DWorld.set_parent(self)
# Setup a timer in Qt that runs taskMgr.step() to simulate Panda's own main loop
# pandaTimer = QTimer(self)
# pandaTimer.timeout.connect()
# pandaTimer.start(0)
self.setFocusPolicy(Qt.StrongFocus)
# Setup another timer that redraws this widget in a specific FPS
# redrawTimer = QTimer(self)
# redrawTimer.timeout.connect(self.update)
# redrawTimer.start(1000/FPS)
self.paintSurface = QPainter()
self.rotate = QTransform()
self.rotate.rotate(180)
self.out_image = QImage()
size = self.Meta3DWorld.cam.node().get_lens().get_film_size()
self.initial_film_size = QSizeF(size.x, size.y)
self.initial_size = self.size()
self.synchronizer = QMeta3DSynchronizer(self, FPS)
self.synchronizer.start()
self.debug = debug
def mousePressEvent(self, evt):
button = evt.button()
try:
b = "{}{}".format(get_panda_key_modifiers_prefix(evt), QMeta3D_Button_translation[button])
if self.debug:
print(b)
messenger.send(b,[{"x":evt.x(),"y":evt.y()}])
except:
print("Unimplemented button. Please send an issue on github to fix this problem")
def mouseMoveEvent(self, evt:QtGui.QMouseEvent):
button = evt.button()
try:
b = "mouse-move"
if self.debug:
print(b)
messenger.send(b,[{"x":evt.x(),"y":evt.y()}])
except:
print("Unimplemented button. Please send an issue on github to fix this problem")
def mouseReleaseEvent(self, evt):
button = evt.button()
try:
b = "{}{}-up".format(get_panda_key_modifiers_prefix(evt), QMeta3D_Button_translation[button])
if self.debug:
print(b)
messenger.send(b,[{"x":evt.x(),"y":evt.y()}])
except:
print("Unimplemented button. Please send an issue on github to fix this problem")
def wheelEvent(self, evt):
delta = evt.angleDelta().y()
try:
if self.debug:
print(f"wheel {delta}")
messenger.send('wheel',[{"delta":delta}])
except:
print("Unimplemented button. Please send an issue on github to fix this problem")
def keyPressEvent(self, evt):
key = evt.key()
try:
k = "{}{}".format(get_panda_key_modifiers_prefix(evt), QMeta3D_Key_translation[key])
if self.debug:
print(k)
messenger.send(k)
except:
print("Unimplemented key. Please send an issue on github to fix this problem")
def keyReleaseEvent(self, evt):
key = evt.key()
try:
k = "{}{}-up".format(get_panda_key_modifiers_prefix(evt), QMeta3D_Key_translation[key])
if self.debug:
print(k)
messenger.send(k)
except:
print("Unimplemented key. Please send an issue on github to fix this problem")
def resizeEvent(self, evt):
width = evt.size().width()
height = evt.size().height()
#print(f"width:{width}")
#print(f"height:{height}")
from Meta3DWorld import resize_buffer
lens = self.Meta3DWorld.cam.node().get_lens()
def minimumSizeHint(self):
return QSize(400, 300)
def paintEvent(self, event):
# 正常窗口渲染模式下Panda3D 会直接渲染到窗口
# 不需要从纹理复制数据
# 只需要确保渲染循环继续运行
# 触发一次渲染更新
if hasattr(self.Meta3DWorld, 'win') and self.Meta3DWorld.win:
# 确保窗口大小匹配
width = self.width()
height = self.height()
# 如果窗口大小不匹配,更新窗口属性
if (self.Meta3DWorld.win.get_x_size() != width or
self.Meta3DWorld.win.get_y_size() != height):
from panda3d.core import WindowProperties
props = WindowProperties()
props.setSize(width, height)
self.Meta3DWorld.win.request_properties(props)
# 继续下一次更新
self.update()
def sync_Meta3d_window_size(self, width, height):
try:
from panda3d.core import WindowProperties
# 更新窗口属性
props = WindowProperties()
props.setSize(width, height)
# 对于正常窗口渲染,直接更新窗口属性
if self.Meta3DWorld.win:
self.Meta3DWorld.win.request_properties(props)
# 如果使用 RenderPipeline更新相关设置
if hasattr(self.Meta3DWorld, 'render_pipeline'):
try:
from RenderPipelineFile.rpcore.globals import Globals
from panda3d.core import LVecBase2i
# 更新全局分辨率
Globals.native_resolution = LVecBase2i(width, height)
# 重新计算渲染分辨率
self.Meta3DWorld.render_pipeline._compute_render_resolution()
# 通知各个管理器处理尺寸变化
self.Meta3DWorld.render_pipeline.light_mgr.compute_tile_size()
self.Meta3DWorld.render_pipeline.stage_mgr.handle_window_resize()
if hasattr(self.Meta3DWorld.render_pipeline, 'debugger'):
self.Meta3DWorld.render_pipeline.debugger.handle_window_resize()
# 触发插件的窗口尺寸变化钩子
self.Meta3DWorld.render_pipeline.plugin_mgr.trigger_hook("window_resized")
except Exception as rp_e:
print(f"RenderPipeline 尺寸更新失败: {rp_e}")
except Exception as e:
print(f"同步 Meta3D 窗口尺寸失败: {str(e)}")