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Python pyqt (gui) example 'calendar'
calendar
Python pyqt example: calendar
#!/usr/bin/env python
#############################################################################
##
## Copyright (C) 2013 Riverbank Computing Limited.
## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
## All rights reserved.
##
## This file is part of the examples of PyQt.
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## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
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## * Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright
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## distribution.
## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
## the names of its contributors may be used to endorse or promote
## products derived from this software without specific prior written
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## $QT_END_LICENSE$
##
#############################################################################
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 MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.selectedDate = QDate.currentDate()
self.fontSize = 10
centralWidget = QWidget()
dateLabel = QLabel("Date:")
monthCombo = QComboBox()
for month in range(1, 13):
monthCombo.addItem(QDate.longMonthName(month))
yearEdit = QDateTimeEdit()
yearEdit.setDisplayFormat('yyyy')
yearEdit.setDateRange(QDate(1753, 1, 1), QDate(8000, 1, 1))
monthCombo.setCurrentIndex(self.selectedDate.month() - 1)
yearEdit.setDate(self.selectedDate)
self.fontSizeLabel = QLabel("Font size:")
self.fontSizeSpinBox = QSpinBox()
self.fontSizeSpinBox.setRange(1, 64)
self.fontSizeSpinBox.setValue(10)
self.editor = QTextBrowser()
self.insertCalendar()
monthCombo.activated.connect(self.setMonth)
yearEdit.dateChanged.connect(self.setYear)
self.fontSizeSpinBox.valueChanged.connect(self.setfontSize)
controlsLayout = QHBoxLayout()
controlsLayout.addWidget(dateLabel)
controlsLayout.addWidget(monthCombo)
controlsLayout.addWidget(yearEdit)
controlsLayout.addSpacing(24)
controlsLayout.addWidget(self.fontSizeLabel)
controlsLayout.addWidget(self.fontSizeSpinBox)
controlsLayout.addStretch(1)
centralLayout = QVBoxLayout()
centralLayout.addLayout(controlsLayout)
centralLayout.addWidget(self.editor, 1)
centralWidget.setLayout(centralLayout)
self.setCentralWidget(centralWidget)
def insertCalendar(self):
self.editor.clear()
cursor = self.editor.textCursor()
cursor.beginEditBlock()
date = QDate(self.selectedDate.year(), self.selectedDate.month(), 1)
tableFormat = QTextTableFormat()
tableFormat.setAlignment(Qt.AlignHCenter)
tableFormat.setBackground(QColor('#e0e0e0'))
tableFormat.setCellPadding(2)
tableFormat.setCellSpacing(4)
constraints = [QTextLength(QTextLength.PercentageLength, 14),
QTextLength(QTextLength.PercentageLength, 14),
QTextLength(QTextLength.PercentageLength, 14),
QTextLength(QTextLength.PercentageLength, 14),
QTextLength(QTextLength.PercentageLength, 14),
QTextLength(QTextLength.PercentageLength, 14),
QTextLength(QTextLength.PercentageLength, 14)]
tableFormat.setColumnWidthConstraints(constraints)
table = cursor.insertTable(1, 7, tableFormat)
frame = cursor.currentFrame()
frameFormat = frame.frameFormat()
frameFormat.setBorder(1)
frame.setFrameFormat(frameFormat)
format = cursor.charFormat()
format.setFontPointSize(self.fontSize)
boldFormat = QTextCharFormat(format)
boldFormat.setFontWeight(QFont.Bold)
highlightedFormat = QTextCharFormat(boldFormat)
highlightedFormat.setBackground(Qt.yellow)
for weekDay in range(1, 8):
cell = table.cellAt(0, weekDay-1)
cellCursor = cell.firstCursorPosition()
cellCursor.insertText(QDate.longDayName(weekDay), boldFormat)
table.insertRows(table.rows(), 1)
while date.month() == self.selectedDate.month():
weekDay = date.dayOfWeek()
cell = table.cellAt(table.rows()-1, weekDay-1)
cellCursor = cell.firstCursorPosition()
if date == QDate.currentDate():
cellCursor.insertText(str(date.day()), highlightedFormat)
else:
cellCursor.insertText(str(date.day()), format)
date = date.addDays(1)
if weekDay == 7 and date.month() == self.selectedDate.month():
table.insertRows(table.rows(), 1)
cursor.endEditBlock()
self.setWindowTitle("Calendar for %s %d" % (QDate.longMonthName(self.selectedDate.month()), self.selectedDate.year()))
def setfontSize(self, size):
self.fontSize = size
self.insertCalendar()
def setMonth(self, month):
self.selectedDate = QDate(self.selectedDate.year(), month + 1,
self.selectedDate.day())
self.insertCalendar()
def setYear(self, date):
self.selectedDate = QDate(date.year(), self.selectedDate.month(),
self.selectedDate.day())
self.insertCalendar()
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
window = MainWindow()
window.resize(640, 256)
window.show()
sys.exit(app.exec_())
Useful links
- Learn PyQt: https://pythonbasics.org/pyqt-hello-world/
- Install PyQt: https://pythonbasics.org/install-pyqt/