eric6/Snapshot/SnapshotTimer.py

Wed, 30 Dec 2020 11:00:44 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Wed, 30 Dec 2020 11:00:44 +0100
branch
maintenance
changeset 7924
8a96736d465e
parent 7781
607a6098cb44
child 7945
76daafe10009
permissions
-rw-r--r--

Updated copyright for 2021.

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parents:
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1 # -*- coding: utf-8 -*-
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2
7924
8a96736d465e Updated copyright for 2021.
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parents: 7781
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3 # Copyright (c) 2012 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing the snapshot timer widget.
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8 """
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9
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441956d8fce5 Started porting eric5 to PyQt5.
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10 from PyQt5.QtCore import pyqtSignal, Qt, QTimer, QRect
441956d8fce5 Started porting eric5 to PyQt5.
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11 from PyQt5.QtGui import QPainter, QPalette
441956d8fce5 Started porting eric5 to PyQt5.
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12 from PyQt5.QtWidgets import QWidget, QApplication, QToolTip
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13
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14 from Globals import qVersionTuple
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15
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5ae038f273c4 Snapshot: refactored the SnapWidget to prepare for implementing snapshot functionality for Wayland desktops.
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16
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17 class SnapshotTimer(QWidget):
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18 """
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19 Class implementing the snapshot timer widget.
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20
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21 @signal timeout() emitted after the timer timed out
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22 """
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23 timeout = pyqtSignal()
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24
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25 def __init__(self):
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26 """
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27 Constructor
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28 """
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8b507a9a2d40 Script changes: Future import added, super calls modified and unicode behavior for str.
T.Rzepka <Tobias.Rzepka@gmail.com>
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29 super(SnapshotTimer, self).__init__(None)
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30
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31 self.setWindowFlags(Qt.WindowStaysOnTopHint | Qt.FramelessWindowHint |
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32 Qt.X11BypassWindowManagerHint)
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33
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34 self.__timer = QTimer()
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35 self.__textRect = QRect()
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36 self.__time = 0
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37 self.__length = 0
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38 self.__toggle = True
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39
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40 # text is taken from paintEvent with maximum number plus some margin
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41 try:
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42 fmWidth = self.fontMetrics().horizontalAdvance(self.tr(
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43 "Snapshot will be taken in %n seconds", "", 99))
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44 except AttributeError:
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45 fmWidth = self.fontMetrics().width(self.tr(
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46 "Snapshot will be taken in %n seconds", "", 99))
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47 self.resize(fmWidth + 6, self.fontMetrics().height() + 4)
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48
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49 self.__timer.timeout.connect(self.__bell)
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50
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51 def start(self, seconds):
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52 """
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53 Public method to start the timer.
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54
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55 @param seconds timeout value (integer)
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56 """
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57 if qVersionTuple() >= (5, 10, 0):
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58 screenGeom = QApplication.screens()[0].geometry()
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59 else:
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60 screenGeom = QApplication.desktop().screenGeometry()
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61 self.move(screenGeom.width() // 2 - self.size().width() // 2,
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62 screenGeom.top())
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63 self.__toggle = True
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64 self.__time = 0
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65 self.__length = seconds
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66 self.__timer.start(1000)
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67 self.show()
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68
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69 def stop(self):
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70 """
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71 Public method to stop the timer.
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72 """
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73 self.setVisible(False)
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74 self.hide()
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75 self.__timer.stop()
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76
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77 def __bell(self):
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78 """
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79 Private slot handling timer timeouts.
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80 """
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81 if self.__time == self.__length - 1:
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82 self.hide()
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83 else:
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84 if self.__time == self.__length:
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85 self.__timer.stop()
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86 self.timeout.emit()
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87
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88 self.__time += 1
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89 self.__toggle = not self.__toggle
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90 self.update()
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91
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92 def paintEvent(self, evt):
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93 """
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94 Protected method handling paint events.
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95
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96 @param evt paint event (QPaintEvent)
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97 """
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98 painter = QPainter(self)
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99
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100 if self.__time < self.__length:
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101 pal = QToolTip.palette()
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102 textBackgroundColor = pal.color(QPalette.Active, QPalette.Base)
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103 if self.__toggle:
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104 textColor = pal.color(QPalette.Active, QPalette.Text)
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105 else:
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106 textColor = pal.color(QPalette.Active, QPalette.Base)
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107 painter.setPen(textColor)
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108 painter.setBrush(textBackgroundColor)
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109 helpText = self.tr("Snapshot will be taken in %n seconds", "",
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110 self.__length - self.__time)
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111 textRect = painter.boundingRect(
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112 self.rect().adjusted(2, 2, -2, -2),
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113 Qt.AlignHCenter | Qt.TextSingleLine, helpText)
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114 painter.drawText(textRect, Qt.AlignHCenter | Qt.TextSingleLine,
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115 helpText)
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116
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117 def enterEvent(self, evt):
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118 """
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119 Protected method handling the mouse cursor entering the widget.
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120
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121 @param evt enter event (QEvent)
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122 """
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123 if qVersionTuple() >= (5, 10, 0):
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124 screenGeom = QApplication.screens()[0].geometry()
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125 else:
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126 screenGeom = QApplication.desktop().screenGeometry()
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127 if self.x() == screenGeom.left():
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128 self.move(
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129 screenGeom.x() +
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130 (screenGeom.width() // 2 - self.size().width() // 2),
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131 screenGeom.top())
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132 else:
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133 self.move(screenGeom.topLeft())

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