76 lines
2.2 KiB
Python
76 lines
2.2 KiB
Python
# ==================================================================
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# =============== 为插件提供接口，在主线程中调用指定函数 ===============
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# ==================================================================
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"""
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from call_func import CallFunc
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def func():
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print("延时3秒调用！")
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id = CallFunc.delay(func, 3) # 延时调用
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# CallFunc.delayStop(id) # 取消延时调用
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"""
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from PySide2.QtCore import QObject, Slot, Signal, QTimer, QMutex
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from uuid import uuid4 # 唯一ID
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class _CallFunc(QObject):
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def __init__(self):
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super().__init__()
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# 信号 在主线程中调用函数
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self._callFuncSignal = self.cSignal()
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self._callFuncSignal.signal.connect(self._cFunc)
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# 计时器停止字典
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self._timerStopDict = {}
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self._timerLock = QMutex()
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# ========================= 【接口】 =========================
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# 立刻：在主线程中调用python函数
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def now(self, func, *args):
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self._callFuncSignal.signal.emit((func, args))
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# 延时：在主线程中调用python函数。返回计时器ID
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def delay(self, func, time, *args):
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timerID = str(uuid4())
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def go():
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timer = QTimer(self)
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timer.setSingleShot(True) # 单次运行
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timer.timeout.connect(lambda: self._timerFunc(timerID, func, args))
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timer.start(time * 1000)
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self.now(go)
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return timerID
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# 取消已启用的延时
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def delayStop(self, timerID):
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self._timerLock.lock()
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self._timerStopDict[timerID] = True # 记录停止
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self._timerLock.unlock()
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# ==================================================
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# 计时器调用的函数
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def _timerFunc(self, timerID, func, args):
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self._timerLock.lock()
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if timerID in self._timerStopDict:
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del self._timerStopDict[timerID]
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self._timerLock.unlock()
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return
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self._timerLock.unlock()
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func(*args)
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# 异步调用的槽函数
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@Slot("QVariant")
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def _cFunc(self, args):
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args[0](*args[1])
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# 信号类
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class cSignal(QObject):
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signal = Signal("QVariant")
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CallFunc = _CallFunc()
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