我的目標(biāo)是禁用用戶可以單擊 aQCalendarWidget中非當(dāng)前月份的日期，因此我將小部件子類化以執(zhí)行此操作。到目前為止，我可以讓那些日子根本不渲染任何文本（很棒）。這是代碼：class QCustomCalendar(QCalendarWidget): """Create my own Calendar with my own options.""" def __init__(self, parent=None): """Initializing functions""" QCalendarWidget.__init__(self, parent) self.setEnabled(True) self.setGeometry(QRect(0, 0, 320, 250)) self.setGridVisible(False) self.setHorizontalHeaderFormat(QCalendarWidget.SingleLetterDayNames) self.setVerticalHeaderFormat(QCalendarWidget.NoVerticalHeader) self.setNavigationBarVisible(True) self.setDateEditEnabled(True) self.setObjectName("calendarWidget") def paintCell(self, painter, rect, date): """Sub-class this and repaint the cells""" # Render only this-month days month = "{0}-{1}".format(str(self.yearShown()), str(self.monthShown()).zfill(2)) day = str(date.toPython()) if not day.startswith(month): return QCalendarWidget.paintCell(self, painter, rect, date)但是，如果我單擊未渲染的一天，它仍然會(huì)計(jì)數(shù)并觸發(fā)clicked事件。示例：我對(duì)一個(gè)紅色方塊進(jìn)行了 photoshop，點(diǎn)擊它，它會(huì)選擇 6 月 4 日（即使我們?cè)谄聊唤貓D中是在 5 月）。我如何禁用那些日子不被選擇？我嘗試setDateRange了currentPageChanged事件，但它沒(méi)有按預(yù)期工作：def __init__(self, parent=None): # some code self.currentPageChanged.connect(self.store_current_month) self.clicked.connect(self.calendar_itemchosen)def store_current_month(self): self.CURRENT_MONTH = "{0}-{1}".format(str(self.yearShown()), str(self.monthShown()).zfill(2))def calendar_itemchosen(self): day = str(self.selectedDate().toPython()) print(day) if day.startswith(self.CURRENT_MONTH): selection = self.selectedDate() # some code self.close()用這個(gè)代碼點(diǎn)擊那個(gè)紅色方塊的結(jié)果是：2018-062018-06-04所以我猜currentPageChanged當(dāng)您選擇另一個(gè)月份的日期時(shí)，Qt 首先會(huì)觸發(fā)該事件。setDateRange將不起作用，因?yàn)槿绻姨砑铀詫⑦x擇限制在本月，那么日歷頂部的“轉(zhuǎn)到下個(gè)月或上個(gè)月”按鈕將不起作用，我需要用戶能夠更改月份. 我只是不想讓日歷顯示不屬于這個(gè)月頁(yè)面的日子。
1 回答
倚天杖
TA貢獻(xiàn)1828條經(jīng)驗(yàn) 獲得超3個(gè)贊
一種解決方案是過(guò)濾 QCalendarWidget 內(nèi)部具有的 QTableView 的 mousePressEvent 事件。為此，我們使用事件過(guò)濾器：
from PyQt5 import QtCore, QtWidgets
class CalendarWidget(QtWidgets.QCalendarWidget):
def __init__(self, parent=None):
super(CalendarWidget, self).__init__(parent, gridVisible=False,
horizontalHeaderFormat=QtWidgets.QCalendarWidget.SingleLetterDayNames,
verticalHeaderFormat=QtWidgets.QCalendarWidget.NoVerticalHeader,
navigationBarVisible=True,
dateEditEnabled=True)
self.setEnabled(True)
self.setGeometry(QtCore.QRect(0, 0, 320, 250))
self.clicked.connect(print)
self.table_view = self.findChild(QtWidgets.QTableView, "qt_calendar_calendarview")
self.table_view.viewport().installEventFilter(self)
self.setFirstDayOfWeek(QtCore.Qt.Monday)
def referenceDate(self):
refDay = 1
while refDay <= 31:
refDate = QtCore.QDate(self.yearShown(), self.monthShown(), refDay)
if refDate.isValid(): return refDate
refDay += 1
return QtCore.QDate()
def columnForDayOfWeek(self, day):
m_firstColumn = 1 if self.verticalHeaderFormat() != QtWidgets.QCalendarWidget.NoVerticalHeader else 0
if day < 1 or day > 7: return -1
column = day - int(self.firstDayOfWeek())
if column < 0:
column += 7
return column + m_firstColumn
def columnForFirstOfMonth(self, date):
return (self.columnForDayOfWeek(date.dayOfWeek()) - (date.day() % 7) + 8) % 7
def dateForCell(self, row, column):
m_firstRow = 1 if self.horizontalHeaderFormat() != QtWidgets.QCalendarWidget.NoHorizontalHeader else 0
m_firstColumn = 1 if self.verticalHeaderFormat() != QtWidgets.QCalendarWidget.NoVerticalHeader else 0
rowCount = 6
columnCount = 7
if row < m_firstRow or row > (m_firstRow + rowCount -1) or column < m_firstColumn or column > (m_firstColumn + columnCount -1):
return QtCore.QDate()
refDate = self.referenceDate()
if not refDate.isValid():
return QtCore.QDate()
columnForFirstOfShownMonth = self.columnForFirstOfMonth(refDate)
if (columnForFirstOfShownMonth - m_firstColumn) < 1:
row -= 1
requestedDay = 7*(row - m_firstRow) + column - columnForFirstOfShownMonth - refDate.day() + 1
return refDate.addDays(requestedDay)
def eventFilter(self, obj, event):
if obj is self.table_view.viewport() and event.type() == QtCore.QEvent.MouseButtonPress:
ix = self.table_view.indexAt(event.pos())
date = self.dateForCell(ix.row(), ix.column())
d_start = QtCore.QDate(self.yearShown(), self.monthShown(), 1)
d_end = QtCore.QDate(self.yearShown(), self.monthShown(), d_start.daysInMonth())
if d_start > date or date > d_end:
return True
return super(CalendarWidget, self).eventFilter(obj, event)
def paintCell(self, painter, rect, date):
d_start = QtCore.QDate(self.yearShown(), self.monthShown(), 1)
d_end = QtCore.QDate(self.yearShown(), self.monthShown(), d_start.daysInMonth())
if d_start <= date <= d_end:
super(CalendarWidget, self).paintCell(painter, rect, date)
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
w = CalendarWidget()
w.show()
sys.exit(app.exec_())
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