Python 实现自定义QWidgets作为QTimeEdit的弹出窗口

QTimeEdit没有弹出窗口，它的整体设计使它"不好用".

因此，我编写了两个自定义的QWidget类:

• class Clock_hourWidget(QWidget): class/object返回/发出第一个有效小时输入
• class Clock_minuteWidget(QWidget): class/object返回/发出第一个有效分钟输入

我把它们嵌入到一个自定义的QTimeEdit中:

import math
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QTimeEdit, QApplication
from PyQt5.QtCore import QTime, Qt, QTimer
from PyQt5.QtGui import QIcon


class Clock_hourWidget(QtWidgets.QWidget):
    return_hour = 15
    first = True

    def __init__(self, hours, callback, parent=None):
        super(Clock_hourWidget, self).__init__(parent)
        self.setWindowFlags(Qt.Popup)
        self.callback = callback
        self.setFixedSize(150,150)
        self.hours = hours

    def mousePressEvent(self, event):
        if self.rect().contains(event.localPos().toPoint()):
            self.first = False
            self.return_hour = self.hours
        self.close()

    @property
    def hour(self):
        if self.first:
            result = -1
        else:
            result = self.return_hour
        return result
    
    def closeEvent(self, event):
        self.callback(self.hour)
        event.accept()


class Clock_minuteWidget(QtWidgets.QWidget):
    return_minutes = 30

    def __init__(self, minutes, callback, parent=None):
        super(Clock_minuteWidget, self).__init__(parent)
        self.setWindowFlags(Qt.Popup)
        self.setFixedSize(150,150)
        self.callback = callback
        self.minutes = minutes

    def mousePressEvent(self, event):
        if self.rect().contains(event.localPos().toPoint()):
            self.return_minutes = self.minutes
        self.close()

    @property
    def minute(self):
        return self.return_minutes

    def closeEvent(self, event):
        self.callback(self.minute)
        event.accept()


class CustomTimeEdit(QTimeEdit):
    def __init__(self, parent=None):
        super(CustomTimeEdit, self).__init__(parent)
        self.setDisplayFormat("HH:mm")
        self.setCalendarPopup(False)
        # calendar_icon = QIcon.fromTheme("calendar")
        # self.setButtonSymbols(calendar_icon)

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.open_clock_hourwidget()

    def return_hour(self, hour):
        self.clock_hourwidget = None
        if hour != -1:
            self.hours = hour
            self.minutes = self.time().minute()
            self.setTime(QTime(self.hours, self.minutes))
            self.clock_minutewidget = Clock_minuteWidget(self.minutes, self.clock_finalizer)
            pos = self.mapToGlobal(self.rect().bottomLeft())
            pos = self.adjust_Popup_positioning(pos, self.clock_minutewidget)
            self.clock_minutewidget.move(pos)
            self.clock_minutewidget.show()

    def open_clock_hourwidget(self):
        self.hours = self.time().hour()
        self.clock_hourwidget = Clock_hourWidget(self.hours, self.return_hour)
        pos = self.mapToGlobal(self.rect().bottomLeft())
        pos = self.adjust_Popup_positioning(pos, self.clock_hourwidget)
        self.clock_hourwidget.move(pos)
        self.clock_hourwidget.show()

    def adjust_Popup_positioning(self, pos, widget):
        screen = QApplication.desktop().screenNumber(QApplication.desktop().cursor().pos())
        screen_geometry = QApplication.desktop().screenGeometry(screen)
        if pos.y() + widget.height() > screen_geometry.height():
            pos = self.mapToGlobal(self.rect().topLeft())
            pos.setY(pos.y() - widget.height())
        if pos.x() < screen_geometry.left():
            pos.setX(screen_geometry.left())
        elif pos.x() + widget.width() > screen_geometry.right():
            pos.setX(screen_geometry.right() - widget.width())
        return pos

    def clock_finalizer(self, minute):
        self.clock_minutewidget = None
        self.setTime(QTime(self.hours, minute))


if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    time_edit = CustomTimeEdit()
    time_edit.show()
    sys.exit(app.exec_())

我希望弹出窗口的行为像QDateEdit的CalendarPopup(已经在上面的代码片段中删除了功能):

• 弹出窗口应在自定义QTimeEdit下打开
• 如果自定义QTimeEdit下的空间不足，则应显示在自定义QTimeEdit上方
• 如果右边没有足够的空间，它应该稍微向左移动，反之亦然
• 最重要的是，似乎是不可撤销的:如果用户点击弹出窗口外，或者如果弹出窗口(可能是整个应用程序)失go 焦点(通过按下windows键或alt—tab，例如):弹出窗口关闭.
• 自定义QTimeEdit的按钮外观和行为应该像QDateEdit/QDateTimeEdit(setCalendarPopup(True))的CalendarPopup按钮:外观应该根据使用的样式和平台而改变

如果需要的话，我可以提供完整的代码，但出于简单的原因，我试图尽可能地削减它.