Mercurial Repositories > eric / file comparison
comparison: src/eric7/EricNetwork/EricIPv4InputWidget.py
src/eric7/EricNetwork/EricIPv4InputWidget.py
- branch
- mpy_network
- changeset 9797
- 3be7b2326e2c
- child 9830
- 6c91fdb0e55b
equal
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| 9795:11b4d39d7584 | 9797:3be7b2326e2c |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2023 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a widget to enter an IPv4 address. | |
| 8 """ | |
| 9 | |
| 10 import ipaddress | |
| 11 | |
| 12 from PyQt6.QtCore import pyqtSignal, pyqtSlot, QRegularExpression, QEvent, Qt | |
| 13 from PyQt6.QtGui import QRegularExpressionValidator | |
| 14 from PyQt6.QtWidgets import QWidget | |
| 15 | |
| 16 from eric7.EricGui import EricPixmapCache | |
| 17 | |
| 18 from .Ui_EricIPv4InputWidget import Ui_EricIPv4InputWidget | |
| 19 | |
| 20 | |
| 21 class EricIPv4InputWidget(QWidget, Ui_EricIPv4InputWidget): | |
| 22 """ | |
| 23 Class implementing a widget to enter an IPv4 address. | |
| 24 | |
| 25 @signal addressChanged() emitted to indicate a change of the entered IPv4 address | |
| 26 """ | |
| 27 addressChanged = pyqtSignal() | |
| 28 | |
| 29 def __init__(self, parent=None): | |
| 30 """ | |
| 31 Constructor | |
| 32 | |
| 33 @param parent reference to the parent widget (defaults to None) | |
| 34 @type QWidget (optional) | |
| 35 """ | |
| 36 super().__init__(parent) | |
| 37 self.setupUi(self) | |
| 38 | |
| 39 self.clearButton.setIcon(EricPixmapCache.getIcon("clearLeft")) | |
| 40 self.clearButton.clicked.connect(self.__clear) | |
| 41 | |
| 42 ipRange = r"(?:[0-1]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])" | |
| 43 | |
| 44 self.ip1Edit.setValidator( | |
| 45 QRegularExpressionValidator(QRegularExpression(ipRange)) | |
| 46 ) | |
| 47 self.ip2Edit.setValidator( | |
| 48 QRegularExpressionValidator(QRegularExpression(ipRange)) | |
| 49 ) | |
| 50 self.ip3Edit.setValidator( | |
| 51 QRegularExpressionValidator(QRegularExpression(ipRange)) | |
| 52 ) | |
| 53 self.ip4Edit.setValidator( | |
| 54 QRegularExpressionValidator(QRegularExpression(ipRange)) | |
| 55 ) | |
| 56 | |
| 57 self.ip1Edit.installEventFilter(self) | |
| 58 self.ip2Edit.installEventFilter(self) | |
| 59 self.ip3Edit.installEventFilter(self) | |
| 60 | |
| 61 self.ip1Edit.textChanged.connect(self.addressChanged) | |
| 62 self.ip2Edit.textChanged.connect(self.addressChanged) | |
| 63 self.ip3Edit.textChanged.connect(self.addressChanged) | |
| 64 self.ip4Edit.textChanged.connect(self.addressChanged) | |
| 65 | |
| 66 def eventFilter(self, obj, evt): | |
| 67 """ | |
| 68 Public method to filter pressing '.' to give focus to the next input field. | |
| 69 | |
| 70 @param obj reference to the object | |
| 71 @type QObject | |
| 72 @param evt reference to the event object | |
| 73 @type QEvent | |
| 74 """ | |
| 75 if evt.type() == QEvent.Type.KeyPress: | |
| 76 if evt.text() == '.': | |
| 77 if obj is self.ip1Edit: | |
| 78 nextWidget = self.ip2Edit | |
| 79 elif obj is self.ip2Edit: | |
| 80 nextWidget = self.ip3Edit | |
| 81 elif obj is self.ip3Edit: | |
| 82 nextWidget = self.ip4Edit | |
| 83 else: | |
| 84 nextWidget = None | |
| 85 if nextWidget: | |
| 86 nextWidget.setFocus(Qt.FocusReason.TabFocusReason) | |
| 87 return True | |
| 88 | |
| 89 return super().eventFilter(obj, evt) | |
| 90 | |
| 91 def hasAcceptableInput(self): | |
| 92 """ | |
| 93 Public method to check, if the input is acceptable. | |
| 94 | |
| 95 @return flag indicating acceptable input | |
| 96 @rtype bool | |
| 97 """ | |
| 98 try: | |
| 99 ipaddress.IPv4Address(self.text()) | |
| 100 except ipaddress.AddressValueError: | |
| 101 # leading zeros are not allowed | |
| 102 return False | |
| 103 | |
| 104 return ( | |
| 105 self.ip1Edit.hasAcceptableInput() | |
| 106 and self.ip2Edit.hasAcceptableInput() | |
| 107 and self.ip3Edit.hasAcceptableInput() | |
| 108 and self.ip4Edit.hasAcceptableInput() | |
| 109 ) | |
| 110 | |
| 111 def text(self): | |
| 112 """ | |
| 113 Public method to get the IPv4 address as a string. | |
| 114 | |
| 115 @return IPv4 address | |
| 116 @rtype str | |
| 117 """ | |
| 118 return "{0}.{1}.{2}.{3}".format( | |
| 119 self.ip1Edit.text(), | |
| 120 self.ip2Edit.text(), | |
| 121 self.ip3Edit.text(), | |
| 122 self.ip4Edit.text(), | |
| 123 ) | |
| 124 | |
| 125 def setText(self, address): | |
| 126 """ | |
| 127 Public method to set the IPv4 address given a string. | |
| 128 | |
| 129 @param address IPv4 address | |
| 130 @type str | |
| 131 """ | |
| 132 if address: | |
| 133 try: | |
| 134 ipaddress.IPv4Address(address) | |
| 135 except ipaddress.AddressValueError as err: | |
| 136 raise ValueError(str(err)) | |
| 137 | |
| 138 addressParts = address.split(".") | |
| 139 self.ip1Edit.setText(addressParts[0]) | |
| 140 self.ip2Edit.setText(addressParts[1]) | |
| 141 self.ip3Edit.setText(addressParts[2]) | |
| 142 self.ip4Edit.setText(addressParts[3]) | |
| 143 else: | |
| 144 self.clear() | |
| 145 | |
| 146 def address(self): | |
| 147 """ | |
| 148 Public method to get the IPv4 address as an ipaddress.IPv4Address object. | |
| 149 | |
| 150 @return IPv4 address | |
| 151 @rtype ipaddress.IPv4Address | |
| 152 """ | |
| 153 try: | |
| 154 return ipaddress.IPv4Address(self.text()) | |
| 155 except ipaddress.AddressValueError as err: | |
| 156 raise ValueError(str(err)) | |
| 157 | |
| 158 def setAddress(self, address): | |
| 159 """ | |
| 160 Public method to set the IPv4 address given an ipaddress.IPv4Address object. | |
| 161 | |
| 162 @param address IPv4 address | |
| 163 @type ipaddress.IPv4Address | |
| 164 """ | |
| 165 if address: | |
| 166 self.setText(str(address)) | |
| 167 else: | |
| 168 self.clear() | |
| 169 | |
| 170 @pyqtSlot() | |
| 171 def clear(self): | |
| 172 """ | |
| 173 Public slot to clear the input fields. | |
| 174 """ | |
| 175 self.ip1Edit.clear() | |
| 176 self.ip2Edit.clear() | |
| 177 self.ip3Edit.clear() | |
| 178 self.ip4Edit.clear() | |
| 179 | |
| 180 @pyqtSlot() | |
| 181 def __clear(self): | |
| 182 """ | |
| 183 Private slot to handle the clear button press. | |
| 184 """ | |
| 185 self.clear() | |
| 186 self.ip1Edit.setFocus(Qt.FocusReason.OtherFocusReason) |
