PyQt analog wall-clock

analogclock.py

#!/usr/bin/env python3

# forked from https://github.com/baoboa/pyqt5/blob/master/examples/widgets/analogclock.py

#############################################################################
##
## 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.
##
## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
##   * 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
##     notice, this list of conditions and the following disclaimer in
##     the documentation and/or other materials provided with the
##     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
##     permission.
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## $QT_END_LICENSE$
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#############################################################################

import math

from PyQt5.QtCore import QPoint, Qt, QDateTime, QTime, QTimer, QSettings, QRect, QRectF
from PyQt5.QtCore import QCoreApplication
from PyQt5.QtGui import QColor, QPainter, QPolygon, QIcon, QFont, QPen, QBrush, QPainterPath
from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget


class PyAnalogClock(QMainWindow):
    hourHand = QPolygon([
        QPoint(4, 8),
        QPoint(-4, 8),
        QPoint(-4, -40),
        QPoint(4, -40)
    ])
    minuteHand = QPolygon([
        QPoint(3, 8),
        QPoint(-2, 8),
        QPoint(-2, -70),
        QPoint(3, -70)
    ])

    hourColorPm = QColor(0x94, 0x48, 0x48, 214)
    hourColorAm = QColor(0x48, 0x94, 0x94, 214)
    minuteColor = QColor(57, 57, 57, 188)
    whiteShadowColor = QColor(255, 255, 255, 96)
    smokeBackgroundColor = QColor(255, 255, 255, 32)
    rubyColor = QColor(255, 255, 255, 75)
    textColor = QColor(34, 34, 34, 188)
    textPanelColor = QColor(255, 255, 255, 121)

    def setShowFrame(self, showFrame):
        self.showFrame = showFrame
        flags = self.windowFlags()
        if not showFrame:
            flags |= Qt.WindowStaysOnBottomHint | Qt.FramelessWindowHint
        else:
            flags &= ~(Qt.WindowStaysOnBottomHint | Qt.FramelessWindowHint)
        self.setWindowFlags(flags)

    def checkUpdate(self):
        time = QTime.currentTime()
        if time.second() % 10 == 0:
            self.update()

    def rotatedPoint(self, x, y, degr):
        theta = degr * math.pi / 180
        s = math.sin(theta)
        c = math.cos(theta)
        return x * c - y * s, x * s + y * c

    def closeEvent(self, event):
        geometry = self.saveGeometry()
        self.settings.setValue('geometry', geometry)
        self.settings.sync()
        super(PyAnalogClock, self).closeEvent(event)

    def mouseDoubleClickEvent(self, event):
        geometry = self.saveGeometry()
        self.settings.setValue('geometry', geometry)
        self.hide()
        self.setShowFrame(not self.showFrame)
        self.show()
        self.restoreGeometry(geometry)

    def __init__(self, parent=None, showFrame=False, windowSize=None):
        super(PyAnalogClock, self).__init__(parent)

        timer = QTimer(self)
        timer.timeout.connect(self.checkUpdate)
        timer.start(1000)

        appIcon = QIcon.fromTheme("applications-accessories")
        self.setWindowIcon(appIcon)

        self.setAttribute(Qt.WA_TranslucentBackground)

        self.settings = QSettings('ToshihiroKamiya', 'Analog Clock')
        if windowSize is None:
            geometry = self.settings.value('geometry', None)
            if geometry is not None:
                self.restoreGeometry(geometry)
            else:
                windowSize = 100
                self.resize(windowSize, windowSize)
        else:
            if windowSize < 100:
                windowSize = 100
            self.resize(windowSize, windowSize)

        self.setShowFrame(not not showFrame)

        self.setWindowTitle("Analog Clock")

        font = QFont()
        font.setStyleHint(QFont.SansSerif)
        font.setFamily('monospace')
        font.setPointSize(12)
        self.font = font

        font = QFont(font)
        font.setPointSize(13)
        self.rubyFont = font

    def paintEvent(self, event):
        side = min(self.width(), self.height())
        timeDate = QDateTime.currentDateTime()
        timeDateStr = timeDate.toString("HH:mm\nMM/dd")
        time = timeDate.time()
        isAm = time.hour() < 12
        hourColor = self.hourColorAm if isAm else self.hourColorPm

        whiteShadowPen = QPen(self.whiteShadowColor)
        whiteShadowPen.setJoinStyle(Qt.MiterJoin)
        whiteShadowPen.setWidthF(0.9)

        y0 = -90 if 15 <= time.minute() < 45 else 20
        x0 = -90 if 0 <= time.hour() % 12 < 6 else 20
        textPanelRect = QRectF(x0, y0, 69, 69)

        painter = QPainter()
        painter.begin(self)
        painter.setRenderHint(QPainter.Antialiasing)
        painter.translate(self.width() / 2, self.height() / 2)
        painter.scale(side / 200.0, side / 200.0)

        # draw clock frame
        painter.setClipping(True)
        p = QPainterPath()
        p.addRect(QRectF(-100, -100, 200, 200))
        p2 = QPainterPath()
        p2.addRect(QRectF(textPanelRect))
        p = p.subtracted(p2)
        painter.setClipPath(p)

        painter.setPen(whiteShadowPen)
        painter.setBrush(QBrush(self.smokeBackgroundColor))
        painter.drawEllipse(QPoint(0, 0), 99, 99)

        painter.setPen(whiteShadowPen)
        painter.setFont(self.rubyFont)
        painter.setBrush(QBrush(hourColor))
        for i in range(0, 12):
            x, y = self.rotatedPoint(0, -92, i * 360/12)
            painter.drawEllipse(x - 3, y - 3, 6, 6)
        painter.setPen(self.rubyColor)
        for i in range(0, 12):
            x, y = self.rotatedPoint(0, -76, i * 360/12)
            painter.drawText(QRect(x - 10, y - 10, 20, 20), Qt.AlignCenter, "%d" % (i if isAm else i + 12))

        painter.setPen(whiteShadowPen)
        painter.setBrush(QBrush(self.minuteColor))
        for j in range(0, 60):
            if j % 5 != 0:
                x, y = self.rotatedPoint(0, -92, j * 360/60)
                painter.drawEllipse(x - 1, y - 1, 2, 2)
        painter.setClipping(False)

        # draw digital clock panel
        painter.setPen(whiteShadowPen)
        painter.setBrush(QBrush(self.textPanelColor))
        painter.drawRect(textPanelRect)
        texts = timeDateStr.split('\n')
        painter.setFont(self.font)
        painter.setPen(self.textColor)
        h2 = textPanelRect.height() / 2
        rect = QRect(textPanelRect.left(), textPanelRect.top() + 5, textPanelRect.width(), h2-5)
        painter.drawText(rect, Qt.AlignCenter, texts[0])
        rect = QRect(textPanelRect.left(), textPanelRect.top() + h2, textPanelRect.width(), h2-5)
        painter.drawText(rect, Qt.AlignCenter, texts[1])

        # draw hands
        painter.setPen(whiteShadowPen)
        painter.setBrush(QBrush(hourColor))

        painter.save()
        painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)))
        painter.drawConvexPolygon(self.hourHand)
        painter.restore()

        painter.setPen(whiteShadowPen)
        painter.setBrush(QBrush(self.minuteColor))

        painter.save()
        painter.rotate(6.0 * (time.minute() + time.second() / 60.0))
        painter.drawConvexPolygon(self.minuteHand)
        painter.restore()

        painter.end()


if __name__ == "__main__":
    import sys

    __doc__ = """Show wall clock.

Usage: {argv0} [Options]

Options:
  -f        Show window frame.
  -s SIZE   Set window size.
""".format(argv0=sys.argv[0])

    optionShowFrame = False
    optionWindowSize = None
    argv = sys.argv[1:]
    while argv:
        if argv[0] == '-f':
            optionShowFrame = True
        elif argv[0].startswith('-s'):
            if len(argv[0]) > 2:
                s = int(argv[0][2:])
            else:
                s = int(argv[1])
                del argv[0]
            optionWindowSize = s
        elif argv[0] == '-h':
            print(__doc__)
            sys.exit(0)
        else:
            sys.exit("error: too many arguments / unknown option: %s" % argv[0])
        del argv[0]

    argv.insert(0, sys.argv[0])
    app = QApplication(argv)
    clock = PyAnalogClock(showFrame=optionShowFrame, windowSize=optionWindowSize)
    clock.show()
    sys.exit(app.exec_())