如何使用 SQL 数据库更改 QCalendarWidget 中单元格的背景颜色
How to change the background colour of a cell in a QCalendarWidget using an SQL database
这不是
的重复问题
这是该问题的附加内容。
这也不是 as this is just highlighting cells when the user selects it on the actual QT page and not by using SQL data. It also isn't a duplicate question of Coloring PyQt5 QCalendarWidget cell and printing data inside the cells 的重复，因为答案不符合我希望我的程序执行的操作，即使用我的 [=47= 更改日历特定单元格的背景颜色] 数据库来做这个，以及我无法得到工作的答案。
在第一个链接问题中，我问用户如何按下一个日期，如果该日期在 sql 数据库中，它将输出与该日期对应的文本。在一些帮助下，我设法使它正常工作。现在我想要做的是用蓝色背景突出显示那些日期，就像当前日期如何用红色背景突出显示一样。
我做的QT页面是这样的：
My QT Page
我的数据库是这样的：
My database
我的代码是这样的：
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'Calendar.ui'
#
# Created by: PyQt5 UI code generator 5.14.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
import sqlite3
import datetime
import PyQt5
from PyQt5.QtCore import QDate, Qt
from PyQt5.QtGui import (QColor, QFont, QTextCharFormat, QTextLength,
QTextTableFormat)
from PyQt5.QtWidgets import (QApplication, QComboBox, QDateTimeEdit,
QHBoxLayout, QLabel, QMainWindow, QSpinBox, QTextBrowser, QVBoxLayout,
QWidget)
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(1200, 900)
MainWindow.setMinimumSize(QtCore.QSize(0, 0))
MainWindow.setMaximumSize(QtCore.QSize(1200, 900))
MainWindow.setStyleSheet("background-color: rgb(200, 200, 200);")
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.Header = QtWidgets.QTextEdit(self.centralwidget)
self.Header.setEnabled(False)
self.Header.setGeometry(QtCore.QRect(-10, 0, 1300, 110))
self.Header.setMinimumSize(QtCore.QSize(1300, 110))
self.Header.setMaximumSize(QtCore.QSize(1300, 110))
self.Header.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"border-color: rgb(255, 255, 255);\n"
"border-width : 1.2px;\n"
"border-style:inset;")
self.Header.setObjectName("Header")
self.LECTURP = QtWidgets.QLabel(self.centralwidget)
self.LECTURP.setGeometry(QtCore.QRect(512, 2, 180, 61))
self.LECTURP.setStyleSheet("color: rgb(0, 176, 240);\n"
"font: 8pt \"MS Shell Dlg 2\";\n"
"text-decoration: underline;\n"
"background-color: rgb(255, 255, 255);\n"
"font: 28pt \"Calbri\";\n"
"text-decoration: underline;")
self.LECTURP.setObjectName("LECTURP")
self.LecturpBanner = QtWidgets.QLabel(self.centralwidget)
self.LecturpBanner.setGeometry(QtCore.QRect(320, 60, 561, 31))
self.LecturpBanner.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"color: rgb(0, 176, 240);\n"
"font: 14pt \"Calibri\";")
self.LecturpBanner.setObjectName("LecturpBanner")
self.calendarWidget = QtWidgets.QCalendarWidget(self.centralwidget)
self.calendarWidget.setGeometry(QtCore.QRect(30, 110, 1141, 661))
self.calendarWidget.setStyleSheet("alternate-background-color: rgb(255, 255, 255);\n"
"font: 75 16pt \"MS Shell Dlg 2\";\n"
"background-color: rgb(200, 200, 200);\n"
"selection-background-color: rgb(255, 0, 0);")
self.calendarWidget.setObjectName("calendarWidget")
self.DateInfoOutput = QtWidgets.QLabel(self.centralwidget)
self.DateInfoOutput.setGeometry(QtCore.QRect(30, 778, 1141, 97))
self.DateInfoOutput.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"border-color: rgb(0, 0, 0);\n"
"font: 16pt \"Calibri\";\n"
"border-width : 1.2px;\n"
"border-style:inset;")
self.DateInfoOutput.setText("")
self.DateInfoOutput.setObjectName("DateInfoOutput")
self.WeekNumber = QtWidgets.QLabel(self.centralwidget)
self.WeekNumber.setGeometry(QtCore.QRect(56, 168, 113, 49))
self.WeekNumber.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"font: 16pt \"MS Shell Dlg 2\";")
self.WeekNumber.setObjectName("WeekNumber")
self.calendarWidget.raise_()
self.Header.raise_()
self.LECTURP.raise_()
self.LecturpBanner.raise_()
self.DateInfoOutput.raise_()
self.WeekNumber.raise_()
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
self.editor = QTextBrowser()
self.calendarWidget.clicked[QDate].connect(self.dateClicked)
def dateClicked(self, clickedDate):
connection = sqlite3.connect("Calendardatabase.db")
crsr = connection.cursor()
crsr.execute(
'SELECT Text FROM Calendar WHERE Day = ? AND Month = ? AND YEAR = ?',
(clickedDate.day(), clickedDate.month(), clickedDate.year()))
result = crsr.fetchone()
if result:
self.DateInfoOutput.setText(result[0])
else:
self.DateInfoOutput.setText('')
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.LECTURP.setText(_translate("MainWindow", "LECTURP"))
self.LecturpBanner.setText(_translate("MainWindow", "Lecture, Exam, Coursework, Timetable, Uploader and Reminder Program."))
self.WeekNumber.setText(_translate("MainWindow", "Week No."))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
我试着关注你的评论，我已经这样做了：
crsr.execute('SELECT Date FROM Calendar2 WHERE Number = ?', (Count,))
Dates3 = crsr.fetchone()
Dates3 = str(Dates3)
Dates3 = Dates3.replace("'", "")
Dates3 = Dates3.replace('(', '')
Dates3 = Dates3.replace(')', '')
Dates3 = Dates3.replace(',', '')
print(All_Dates)
print(Dates3)
Dates3 = Dates3.replace('/', ',')
self.dates = { QDate(2020, 3, 20): ["Um Sure"] }
format = QTextCharFormat()
format.setBackground(QColor("salmon"))
self.calendarWidget.setDateTextFormat(Dates3, format)
每当我尝试 运行 时，我都会收到此错误：
Message=setDateTextFormat(self, Union[QDate, datetime.date], QTextCharFormat): argument 1 has unexpected type 'str'
我试过使用 self.dates 变量，但也没有用。我不确定如何将日期转换为输出的 QDate 部分可接受的格式。
好的，一切正常，但是当我做这个 while 循环时，我只是想知道我是做错了 python 还是 QT 做错了。
Count = 1
while Count <= list3:
connection = sqlite3.connect("Calendardatabase.db")
# This is the code for the database cursor
Current_Day = datetime.date.today().strftime("%A,")
Current_Date = datetime.date.today().strftime("%d")
Current_Month = datetime.date.today().strftime("%B")
Combined_Date = ("It is a " + Current_Day + " It is the " + Current_Date + " of " + Current_Month)
Combined_Date = str(Combined_Date)
self.DateInfoOutput.setText(Combined_Date)
cursor = self.editor.textCursor()
crsr.execute('SELECT Date FROM Calendar2 WHERE Number = ?', (Count,))
Dates3 = crsr.fetchone()
Dates3 = str(Dates3)
Dates3 = Dates3.replace("'", "")
Dates3 = Dates3.replace('(', '')
Dates3 = Dates3.replace(')', '')
Dates3 = Dates3.replace(',', '')
crsr.execute('SELECT Text FROM Calendar2 WHERE Number = ?', (Count,))
Text = crsr.fetchone()
Text = str(Text)
Text = Text.replace("'", "")
Text = Text.replace('(', '')
Text = Text.replace(')', '')
Text = Text.replace(',', '')
print(Dates3)
Dates3 = Dates3.replace('/', ' ')
Dates3 = Dates3.replace("'", '')
Dates3.split()
sqlDay = int(Dates3[0:2])
sqlMonth = int(Dates3[3:4])
sqlYear = int(Dates3[6:10])
self.dates = { QDate(sqlYear, sqlMonth, sqlDay): ["Hi"]}
format = QTextCharFormat()
format.setBackground(QColor("lightblue"))
Count = Count + 1
for date, value in self.dates.items():
self.calendarWidget.setDateTextFormat(date, format)
self.DateInfoOutput.setText(Text)
else:
self.DateInfoOutput.setText(Combined_Date)
else:
self.DateInfoOutput.setText(Combined_Date)
这个案例的程序是：
- 查询数据库。
- 获取字符串形式的日期。
- 将字符串转换为指向适当格式的
QDate using the QDate.fromString()方法，并且
- 在
QCalendarWidget using QCalendarWidget.setDateTextFormat() 中设置该日期的格式。
import os
import sqlite3
from PyQt5 import QtCore, QtGui, QtWidgets
CURRENT_DIR = os.path.dirname(os.path.realpath(__file__))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
calendar = QtWidgets.QCalendarWidget()
calendar.show()
connection = sqlite3.connect(os.path.join(CURRENT_DIR, "Calendardatabase.db"))
crsr = connection.cursor()
crsr.execute("""SELECT Date FROM Calendar2""")
date_format = "d/M/yyyy"
cell_format = QtGui.QTextCharFormat()
cell_format.setBackground(QtGui.QColor("red"))
for row in crsr.fetchall():
date_str, *_ = row
dt = QtCore.QDate.fromString(date_str, date_format)
if dt.isValid():
calendar.setDateTextFormat(dt, cell_format)
else:
print("{} does not match format {}".format(date_str, date_format))
sys.exit(app.exec_())
在得到@eyllanesc 的帮助后，我已经完全完成了我的程序，我将把我的程序留在这里，这样如果有人遇到困难，他们可以使用我的程序作为指导，或者在任何情况下都只是提供帮助。
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'Calendar.ui'
#
# Created by: PyQt5 UI code generator 5.14.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
import sqlite3
import datetime
import PyQt5
from PyQt5.QtCore import QDate, Qt
from PyQt5.QtGui import (QColor, QFont, QTextCharFormat, QTextLength,
QTextTableFormat)
from PyQt5.QtWidgets import (QApplication, QComboBox, QDateTimeEdit,
QHBoxLayout, QLabel, QMainWindow, QSpinBox, QTextBrowser, QVBoxLayout,
QWidget)
class Ui_CalendarWidget(object):
def setupUi(self, CalendarWidget):
CalendarWidget.setObjectName("CalendarWidget")
CalendarWidget.resize(1200, 900)
CalendarWidget.setMinimumSize(QtCore.QSize(0, 0))
CalendarWidget.setMaximumSize(QtCore.QSize(1200, 900))
CalendarWidget.setStyleSheet("background-color: rgb(200, 200, 200);")
self.centralWidget = QtWidgets.QWidget(CalendarWidget)
self.centralWidget.setObjectName("centralWidget")
self.Header = QtWidgets.QTextEdit(self.centralWidget)
self.Header.setEnabled(False)
self.Header.setGeometry(QtCore.QRect(-10, 0, 1300, 110))
self.Header.setMinimumSize(QtCore.QSize(1300, 110))
self.Header.setMaximumSize(QtCore.QSize(1300, 110))
self.Header.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"border-color: rgb(255, 255, 255);\n"
"border-width : 1.2px;\n"
"border-style:inset;")
self.Header.setObjectName("Header")
self.LECTURP = QtWidgets.QLabel(self.centralWidget)
self.LECTURP.setGeometry(QtCore.QRect(512, 2, 180, 61))
self.LECTURP.setStyleSheet("color: rgb(0, 176, 240);\n"
"font: 8pt \"MS Shell Dlg 2\";\n"
"text-decoration: underline;\n"
"background-color: rgb(255, 255, 255);\n"
"font: 28pt \"Calbri\";\n"
"text-decoration: underline;")
self.LECTURP.setObjectName("LECTURP")
self.LecturpBanner = QtWidgets.QLabel(self.centralWidget)
self.LecturpBanner.setGeometry(QtCore.QRect(320, 60, 561, 31))
self.LecturpBanner.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"color: rgb(0, 176, 240);\n"
"font: 14pt \"Calibri\";")
self.LecturpBanner.setObjectName("LecturpBanner")
self.calendarWidget = QtWidgets.QCalendarWidget(self.centralWidget)
self.calendarWidget.setGeometry(QtCore.QRect(30, 110, 1141, 661))
self.calendarWidget.setStyleSheet("alternate-background-color: rgb(255, 255, 255);\n"
"font: 75 16pt \"MS Shell Dlg 2\";\n"
"background-color: rgb(200, 200, 200);\n"
"selection-background-color: rgb(255, 0, 0);")
self.calendarWidget.setObjectName("calendarWidget")
self.DateInfoOutput = QtWidgets.QLabel(self.centralWidget)
self.DateInfoOutput.setGeometry(QtCore.QRect(30, 778, 1141, 97))
self.DateInfoOutput.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"border-color: rgb(0, 0, 0);\n"
"font: 16pt \"Calibri\";\n"
"border-width : 1.2px;\n"
"border-style:inset;")
self.DateInfoOutput.setText("")
self.DateInfoOutput.setObjectName("DateInfoOutput")
self.WeekNumber = QtWidgets.QLabel(self.centralWidget)
self.WeekNumber.setGeometry(QtCore.QRect(56, 168, 113, 49))
self.WeekNumber.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"font: 16pt \"MS Shell Dlg 2\";")
self.WeekNumber.setObjectName("WeekNumber")
self.calendarWidget.raise_()
self.Header.raise_()
self.LECTURP.raise_()
self.LecturpBanner.raise_()
self.DateInfoOutput.raise_()
self.WeekNumber.raise_()
CalendarWidget.setCentralWidget(self.centralWidget)
self.statusbar = QtWidgets.QStatusBar(CalendarWidget)
self.statusbar.setObjectName("statusbar")
CalendarWidget.setStatusBar(self.statusbar)
self.retranslateUi(CalendarWidget)
QtCore.QMetaObject.connectSlotsByName(CalendarWidget)
self.editor = QTextBrowser()
self.calendarWidget.clicked[QDate].connect(self.dateClicked)
connection = sqlite3.connect("Calendardatabase.db")
crsr = connection.cursor()
Current_Day = datetime.date.today().strftime("%A,")
Current_Date = datetime.date.today().strftime("%d")
Current_Month = datetime.date.today().strftime("%B")
Combined_Date = ("It is a " + Current_Day + " It is the " + Current_Date + " of " + Current_Month)
Combined_Date = str(Combined_Date)
self.DateInfoOutput.setText(Combined_Date)
#This is where the SQL Data is converted to d/M/yyyy and is then highlighted onto the calendar widget itself.
connection = sqlite3.connect("Calendardatabase.db")
crsr = connection.cursor()
crsr.execute("""SELECT Date FROM Calendar2""")
date_format = "d/M/yyyy"
cell_format = QtGui.QTextCharFormat()
cell_format.setBackground(QtGui.QColor("lightblue"))
for row in crsr.fetchall():
date_str, *_ = row
dt = QtCore.QDate.fromString(date_str, date_format)
if dt.isValid():
self.calendarWidget.setDateTextFormat(dt, cell_format)
else:
self.DateInfoOutput.setText("{} does not match format {}".format(date_str, date_format))
def dateClicked(self, clickedDate):
connection = sqlite3.connect("Calendardatabase.db")
# This is the code for the database cursor
crsr = connection.cursor()
Count = 1
crsr.execute('SELECT Day FROM Calendar WHERE Number = ?', (Count,))
RawDay = crsr.fetchone()
Day = str(RawDay)
Day = Day.replace('(', '')
Day = Day.replace(')', '')
Day = Day.replace(',', '')
Day = int(Day)
crsr.execute('SELECT Month FROM Calendar WHERE Number = ?', (Count,))
RawMonth = crsr.fetchone()
Month = str(RawMonth)
Month = Month.replace('(', '')
Month = Month.replace(')', '')
Month = Month.replace(',', '')
Month = int(Month)
crsr.execute('SELECT Year FROM Calendar WHERE Number = ?', (Count,))
RawYear = crsr.fetchone()
Year = str(RawDay)
Year = Year.replace('(', '')
Year = Year.replace(')', '')
Year = Year.replace(',', '')
Year = int(Year)
Current_Day = datetime.date.today().strftime("%A,")
Current_Date = datetime.date.today().strftime("%d")
Current_Month = datetime.date.today().strftime("%B")
Combined_Date = ("It is a " + Current_Day + " It is the " + Current_Date + " of " + Current_Month)
Combined_Date = str(Combined_Date)
self.DateInfoOutput.setText(Combined_Date)
cursor = self.editor.textCursor()
All_Dates = (Day, Month, Year)
self.selectedDate = QDate.currentDate()
connection = sqlite3.connect("Calendardatabase.db")
crsr = connection.cursor()
crsr.execute(
'SELECT Text FROM Calendar WHERE Day = ? AND Month = ? AND YEAR = ?',
(clickedDate.day(), clickedDate.month(), clickedDate.year()))
result = crsr.fetchone()
self.Date = (clickedDate.day() , '/' , clickedDate.month() , '/' , clickedDate.year())
if result:
self.DateInfoOutput.setText(result[0])
else:
self.DateInfoOutput.setText(Combined_Date)
def retranslateUi(self, CalendarWidget):
_translate = QtCore.QCoreApplication.translate
CalendarWidget.setWindowTitle(_translate("CalendarWidget", "CalendarWidget"))
self.LECTURP.setText(_translate("CalendarWidget", "LECTURP"))
self.LecturpBanner.setText(_translate("CalendarWidget", "Lecture, Exam, Coursework, Timetable, Uploader and Reminder Program."))
self.WeekNumber.setText(_translate("CalendarWidget", "Week No."))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
CalendarWidget = QtWidgets.QMainWindow()
ui = Ui_CalendarWidget()
ui.setupUi(CalendarWidget)
CalendarWidget.show()
sys.exit(app.exec_())
要使该程序运行，您还需要我的数据库，您可以从这里获取：
https://www.dropbox.com/s/cua9gypkl869hnm/Calendardatabase.db?dl=0
如果你只是把它放在与程序文件相同的文件夹中，这应该可以工作。
感谢@eyllanesc 的所有帮助，如果没有你的帮助，我可能会在这个问题上停留数周:)
这不是
这是该问题的附加内容。
这也不是
在第一个链接问题中，我问用户如何按下一个日期，如果该日期在 sql 数据库中，它将输出与该日期对应的文本。在一些帮助下，我设法使它正常工作。现在我想要做的是用蓝色背景突出显示那些日期，就像当前日期如何用红色背景突出显示一样。
我做的QT页面是这样的：
My QT Page
我的数据库是这样的：
My database
我的代码是这样的：
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'Calendar.ui'
#
# Created by: PyQt5 UI code generator 5.14.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
import sqlite3
import datetime
import PyQt5
from PyQt5.QtCore import QDate, Qt
from PyQt5.QtGui import (QColor, QFont, QTextCharFormat, QTextLength,
QTextTableFormat)
from PyQt5.QtWidgets import (QApplication, QComboBox, QDateTimeEdit,
QHBoxLayout, QLabel, QMainWindow, QSpinBox, QTextBrowser, QVBoxLayout,
QWidget)
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(1200, 900)
MainWindow.setMinimumSize(QtCore.QSize(0, 0))
MainWindow.setMaximumSize(QtCore.QSize(1200, 900))
MainWindow.setStyleSheet("background-color: rgb(200, 200, 200);")
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.Header = QtWidgets.QTextEdit(self.centralwidget)
self.Header.setEnabled(False)
self.Header.setGeometry(QtCore.QRect(-10, 0, 1300, 110))
self.Header.setMinimumSize(QtCore.QSize(1300, 110))
self.Header.setMaximumSize(QtCore.QSize(1300, 110))
self.Header.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"border-color: rgb(255, 255, 255);\n"
"border-width : 1.2px;\n"
"border-style:inset;")
self.Header.setObjectName("Header")
self.LECTURP = QtWidgets.QLabel(self.centralwidget)
self.LECTURP.setGeometry(QtCore.QRect(512, 2, 180, 61))
self.LECTURP.setStyleSheet("color: rgb(0, 176, 240);\n"
"font: 8pt \"MS Shell Dlg 2\";\n"
"text-decoration: underline;\n"
"background-color: rgb(255, 255, 255);\n"
"font: 28pt \"Calbri\";\n"
"text-decoration: underline;")
self.LECTURP.setObjectName("LECTURP")
self.LecturpBanner = QtWidgets.QLabel(self.centralwidget)
self.LecturpBanner.setGeometry(QtCore.QRect(320, 60, 561, 31))
self.LecturpBanner.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"color: rgb(0, 176, 240);\n"
"font: 14pt \"Calibri\";")
self.LecturpBanner.setObjectName("LecturpBanner")
self.calendarWidget = QtWidgets.QCalendarWidget(self.centralwidget)
self.calendarWidget.setGeometry(QtCore.QRect(30, 110, 1141, 661))
self.calendarWidget.setStyleSheet("alternate-background-color: rgb(255, 255, 255);\n"
"font: 75 16pt \"MS Shell Dlg 2\";\n"
"background-color: rgb(200, 200, 200);\n"
"selection-background-color: rgb(255, 0, 0);")
self.calendarWidget.setObjectName("calendarWidget")
self.DateInfoOutput = QtWidgets.QLabel(self.centralwidget)
self.DateInfoOutput.setGeometry(QtCore.QRect(30, 778, 1141, 97))
self.DateInfoOutput.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"border-color: rgb(0, 0, 0);\n"
"font: 16pt \"Calibri\";\n"
"border-width : 1.2px;\n"
"border-style:inset;")
self.DateInfoOutput.setText("")
self.DateInfoOutput.setObjectName("DateInfoOutput")
self.WeekNumber = QtWidgets.QLabel(self.centralwidget)
self.WeekNumber.setGeometry(QtCore.QRect(56, 168, 113, 49))
self.WeekNumber.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"font: 16pt \"MS Shell Dlg 2\";")
self.WeekNumber.setObjectName("WeekNumber")
self.calendarWidget.raise_()
self.Header.raise_()
self.LECTURP.raise_()
self.LecturpBanner.raise_()
self.DateInfoOutput.raise_()
self.WeekNumber.raise_()
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
self.editor = QTextBrowser()
self.calendarWidget.clicked[QDate].connect(self.dateClicked)
def dateClicked(self, clickedDate):
connection = sqlite3.connect("Calendardatabase.db")
crsr = connection.cursor()
crsr.execute(
'SELECT Text FROM Calendar WHERE Day = ? AND Month = ? AND YEAR = ?',
(clickedDate.day(), clickedDate.month(), clickedDate.year()))
result = crsr.fetchone()
if result:
self.DateInfoOutput.setText(result[0])
else:
self.DateInfoOutput.setText('')
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.LECTURP.setText(_translate("MainWindow", "LECTURP"))
self.LecturpBanner.setText(_translate("MainWindow", "Lecture, Exam, Coursework, Timetable, Uploader and Reminder Program."))
self.WeekNumber.setText(_translate("MainWindow", "Week No."))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
我试着关注你的评论，我已经这样做了：
crsr.execute('SELECT Date FROM Calendar2 WHERE Number = ?', (Count,))
Dates3 = crsr.fetchone()
Dates3 = str(Dates3)
Dates3 = Dates3.replace("'", "")
Dates3 = Dates3.replace('(', '')
Dates3 = Dates3.replace(')', '')
Dates3 = Dates3.replace(',', '')
print(All_Dates)
print(Dates3)
Dates3 = Dates3.replace('/', ',')
self.dates = { QDate(2020, 3, 20): ["Um Sure"] }
format = QTextCharFormat()
format.setBackground(QColor("salmon"))
self.calendarWidget.setDateTextFormat(Dates3, format)
每当我尝试 运行 时，我都会收到此错误：
Message=setDateTextFormat(self, Union[QDate, datetime.date], QTextCharFormat): argument 1 has unexpected type 'str'
我试过使用 self.dates 变量，但也没有用。我不确定如何将日期转换为输出的 QDate 部分可接受的格式。
好的，一切正常，但是当我做这个 while 循环时，我只是想知道我是做错了 python 还是 QT 做错了。
Count = 1
while Count <= list3:
connection = sqlite3.connect("Calendardatabase.db")
# This is the code for the database cursor
Current_Day = datetime.date.today().strftime("%A,")
Current_Date = datetime.date.today().strftime("%d")
Current_Month = datetime.date.today().strftime("%B")
Combined_Date = ("It is a " + Current_Day + " It is the " + Current_Date + " of " + Current_Month)
Combined_Date = str(Combined_Date)
self.DateInfoOutput.setText(Combined_Date)
cursor = self.editor.textCursor()
crsr.execute('SELECT Date FROM Calendar2 WHERE Number = ?', (Count,))
Dates3 = crsr.fetchone()
Dates3 = str(Dates3)
Dates3 = Dates3.replace("'", "")
Dates3 = Dates3.replace('(', '')
Dates3 = Dates3.replace(')', '')
Dates3 = Dates3.replace(',', '')
crsr.execute('SELECT Text FROM Calendar2 WHERE Number = ?', (Count,))
Text = crsr.fetchone()
Text = str(Text)
Text = Text.replace("'", "")
Text = Text.replace('(', '')
Text = Text.replace(')', '')
Text = Text.replace(',', '')
print(Dates3)
Dates3 = Dates3.replace('/', ' ')
Dates3 = Dates3.replace("'", '')
Dates3.split()
sqlDay = int(Dates3[0:2])
sqlMonth = int(Dates3[3:4])
sqlYear = int(Dates3[6:10])
self.dates = { QDate(sqlYear, sqlMonth, sqlDay): ["Hi"]}
format = QTextCharFormat()
format.setBackground(QColor("lightblue"))
Count = Count + 1
for date, value in self.dates.items():
self.calendarWidget.setDateTextFormat(date, format)
self.DateInfoOutput.setText(Text)
else:
self.DateInfoOutput.setText(Combined_Date)
else:
self.DateInfoOutput.setText(Combined_Date)
这个案例的程序是：
- 查询数据库。
- 获取字符串形式的日期。
- 将字符串转换为指向适当格式的
QDateusing theQDate.fromString()方法，并且 - 在
QCalendarWidgetusingQCalendarWidget.setDateTextFormat()中设置该日期的格式。
import os
import sqlite3
from PyQt5 import QtCore, QtGui, QtWidgets
CURRENT_DIR = os.path.dirname(os.path.realpath(__file__))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
calendar = QtWidgets.QCalendarWidget()
calendar.show()
connection = sqlite3.connect(os.path.join(CURRENT_DIR, "Calendardatabase.db"))
crsr = connection.cursor()
crsr.execute("""SELECT Date FROM Calendar2""")
date_format = "d/M/yyyy"
cell_format = QtGui.QTextCharFormat()
cell_format.setBackground(QtGui.QColor("red"))
for row in crsr.fetchall():
date_str, *_ = row
dt = QtCore.QDate.fromString(date_str, date_format)
if dt.isValid():
calendar.setDateTextFormat(dt, cell_format)
else:
print("{} does not match format {}".format(date_str, date_format))
sys.exit(app.exec_())
在得到@eyllanesc 的帮助后，我已经完全完成了我的程序，我将把我的程序留在这里，这样如果有人遇到困难，他们可以使用我的程序作为指导，或者在任何情况下都只是提供帮助。
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'Calendar.ui'
#
# Created by: PyQt5 UI code generator 5.14.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
import sqlite3
import datetime
import PyQt5
from PyQt5.QtCore import QDate, Qt
from PyQt5.QtGui import (QColor, QFont, QTextCharFormat, QTextLength,
QTextTableFormat)
from PyQt5.QtWidgets import (QApplication, QComboBox, QDateTimeEdit,
QHBoxLayout, QLabel, QMainWindow, QSpinBox, QTextBrowser, QVBoxLayout,
QWidget)
class Ui_CalendarWidget(object):
def setupUi(self, CalendarWidget):
CalendarWidget.setObjectName("CalendarWidget")
CalendarWidget.resize(1200, 900)
CalendarWidget.setMinimumSize(QtCore.QSize(0, 0))
CalendarWidget.setMaximumSize(QtCore.QSize(1200, 900))
CalendarWidget.setStyleSheet("background-color: rgb(200, 200, 200);")
self.centralWidget = QtWidgets.QWidget(CalendarWidget)
self.centralWidget.setObjectName("centralWidget")
self.Header = QtWidgets.QTextEdit(self.centralWidget)
self.Header.setEnabled(False)
self.Header.setGeometry(QtCore.QRect(-10, 0, 1300, 110))
self.Header.setMinimumSize(QtCore.QSize(1300, 110))
self.Header.setMaximumSize(QtCore.QSize(1300, 110))
self.Header.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"border-color: rgb(255, 255, 255);\n"
"border-width : 1.2px;\n"
"border-style:inset;")
self.Header.setObjectName("Header")
self.LECTURP = QtWidgets.QLabel(self.centralWidget)
self.LECTURP.setGeometry(QtCore.QRect(512, 2, 180, 61))
self.LECTURP.setStyleSheet("color: rgb(0, 176, 240);\n"
"font: 8pt \"MS Shell Dlg 2\";\n"
"text-decoration: underline;\n"
"background-color: rgb(255, 255, 255);\n"
"font: 28pt \"Calbri\";\n"
"text-decoration: underline;")
self.LECTURP.setObjectName("LECTURP")
self.LecturpBanner = QtWidgets.QLabel(self.centralWidget)
self.LecturpBanner.setGeometry(QtCore.QRect(320, 60, 561, 31))
self.LecturpBanner.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"color: rgb(0, 176, 240);\n"
"font: 14pt \"Calibri\";")
self.LecturpBanner.setObjectName("LecturpBanner")
self.calendarWidget = QtWidgets.QCalendarWidget(self.centralWidget)
self.calendarWidget.setGeometry(QtCore.QRect(30, 110, 1141, 661))
self.calendarWidget.setStyleSheet("alternate-background-color: rgb(255, 255, 255);\n"
"font: 75 16pt \"MS Shell Dlg 2\";\n"
"background-color: rgb(200, 200, 200);\n"
"selection-background-color: rgb(255, 0, 0);")
self.calendarWidget.setObjectName("calendarWidget")
self.DateInfoOutput = QtWidgets.QLabel(self.centralWidget)
self.DateInfoOutput.setGeometry(QtCore.QRect(30, 778, 1141, 97))
self.DateInfoOutput.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"border-color: rgb(0, 0, 0);\n"
"font: 16pt \"Calibri\";\n"
"border-width : 1.2px;\n"
"border-style:inset;")
self.DateInfoOutput.setText("")
self.DateInfoOutput.setObjectName("DateInfoOutput")
self.WeekNumber = QtWidgets.QLabel(self.centralWidget)
self.WeekNumber.setGeometry(QtCore.QRect(56, 168, 113, 49))
self.WeekNumber.setStyleSheet("background-color: rgb(255, 255, 255);\n"
"font: 16pt \"MS Shell Dlg 2\";")
self.WeekNumber.setObjectName("WeekNumber")
self.calendarWidget.raise_()
self.Header.raise_()
self.LECTURP.raise_()
self.LecturpBanner.raise_()
self.DateInfoOutput.raise_()
self.WeekNumber.raise_()
CalendarWidget.setCentralWidget(self.centralWidget)
self.statusbar = QtWidgets.QStatusBar(CalendarWidget)
self.statusbar.setObjectName("statusbar")
CalendarWidget.setStatusBar(self.statusbar)
self.retranslateUi(CalendarWidget)
QtCore.QMetaObject.connectSlotsByName(CalendarWidget)
self.editor = QTextBrowser()
self.calendarWidget.clicked[QDate].connect(self.dateClicked)
connection = sqlite3.connect("Calendardatabase.db")
crsr = connection.cursor()
Current_Day = datetime.date.today().strftime("%A,")
Current_Date = datetime.date.today().strftime("%d")
Current_Month = datetime.date.today().strftime("%B")
Combined_Date = ("It is a " + Current_Day + " It is the " + Current_Date + " of " + Current_Month)
Combined_Date = str(Combined_Date)
self.DateInfoOutput.setText(Combined_Date)
#This is where the SQL Data is converted to d/M/yyyy and is then highlighted onto the calendar widget itself.
connection = sqlite3.connect("Calendardatabase.db")
crsr = connection.cursor()
crsr.execute("""SELECT Date FROM Calendar2""")
date_format = "d/M/yyyy"
cell_format = QtGui.QTextCharFormat()
cell_format.setBackground(QtGui.QColor("lightblue"))
for row in crsr.fetchall():
date_str, *_ = row
dt = QtCore.QDate.fromString(date_str, date_format)
if dt.isValid():
self.calendarWidget.setDateTextFormat(dt, cell_format)
else:
self.DateInfoOutput.setText("{} does not match format {}".format(date_str, date_format))
def dateClicked(self, clickedDate):
connection = sqlite3.connect("Calendardatabase.db")
# This is the code for the database cursor
crsr = connection.cursor()
Count = 1
crsr.execute('SELECT Day FROM Calendar WHERE Number = ?', (Count,))
RawDay = crsr.fetchone()
Day = str(RawDay)
Day = Day.replace('(', '')
Day = Day.replace(')', '')
Day = Day.replace(',', '')
Day = int(Day)
crsr.execute('SELECT Month FROM Calendar WHERE Number = ?', (Count,))
RawMonth = crsr.fetchone()
Month = str(RawMonth)
Month = Month.replace('(', '')
Month = Month.replace(')', '')
Month = Month.replace(',', '')
Month = int(Month)
crsr.execute('SELECT Year FROM Calendar WHERE Number = ?', (Count,))
RawYear = crsr.fetchone()
Year = str(RawDay)
Year = Year.replace('(', '')
Year = Year.replace(')', '')
Year = Year.replace(',', '')
Year = int(Year)
Current_Day = datetime.date.today().strftime("%A,")
Current_Date = datetime.date.today().strftime("%d")
Current_Month = datetime.date.today().strftime("%B")
Combined_Date = ("It is a " + Current_Day + " It is the " + Current_Date + " of " + Current_Month)
Combined_Date = str(Combined_Date)
self.DateInfoOutput.setText(Combined_Date)
cursor = self.editor.textCursor()
All_Dates = (Day, Month, Year)
self.selectedDate = QDate.currentDate()
connection = sqlite3.connect("Calendardatabase.db")
crsr = connection.cursor()
crsr.execute(
'SELECT Text FROM Calendar WHERE Day = ? AND Month = ? AND YEAR = ?',
(clickedDate.day(), clickedDate.month(), clickedDate.year()))
result = crsr.fetchone()
self.Date = (clickedDate.day() , '/' , clickedDate.month() , '/' , clickedDate.year())
if result:
self.DateInfoOutput.setText(result[0])
else:
self.DateInfoOutput.setText(Combined_Date)
def retranslateUi(self, CalendarWidget):
_translate = QtCore.QCoreApplication.translate
CalendarWidget.setWindowTitle(_translate("CalendarWidget", "CalendarWidget"))
self.LECTURP.setText(_translate("CalendarWidget", "LECTURP"))
self.LecturpBanner.setText(_translate("CalendarWidget", "Lecture, Exam, Coursework, Timetable, Uploader and Reminder Program."))
self.WeekNumber.setText(_translate("CalendarWidget", "Week No."))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
CalendarWidget = QtWidgets.QMainWindow()
ui = Ui_CalendarWidget()
ui.setupUi(CalendarWidget)
CalendarWidget.show()
sys.exit(app.exec_())
要使该程序运行，您还需要我的数据库，您可以从这里获取： https://www.dropbox.com/s/cua9gypkl869hnm/Calendardatabase.db?dl=0 如果你只是把它放在与程序文件相同的文件夹中，这应该可以工作。
感谢@eyllanesc 的所有帮助，如果没有你的帮助，我可能会在这个问题上停留数周:)