Mercurial Repositories > eric / file comparison
comparison: eric6/E5Gui/E5FileSaveConfirmDialog.py
eric6/E5Gui/E5FileSaveConfirmDialog.py
- branch
- micropython
- changeset 7083
- 217862c28319
- child 7089
- 9f9816b19aa4
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| 7082:ec199ef0cfc6 | 7083:217862c28319 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2018 - 2019 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a dialog to enter a file system path using a file picker. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 import os | |
| 13 | |
| 14 from PyQt5.QtWidgets import QDialog, QDialogButtonBox, QVBoxLayout, QLabel | |
| 15 | |
| 16 from .E5PathPicker import E5PathPicker, E5PathPickerModes | |
| 17 from .E5LineEdit import E5ClearableLineEdit | |
| 18 | |
| 19 | |
| 20 class E5FileSaveConfirmDialog(QDialog): | |
| 21 """ | |
| 22 Class implementing a dialog to enter a file system path using a file | |
| 23 picker. | |
| 24 """ | |
| 25 def __init__(self, filename, title, message="", picker=True, parent=None): | |
| 26 """ | |
| 27 Constructor | |
| 28 | |
| 29 @param filename file name to be shown | |
| 30 @type str | |
| 31 @param message message to be shown | |
| 32 @type str | |
| 33 @param title title for the dialog | |
| 34 @type str | |
| 35 @param picker flag indicating to use a path picker | |
| 36 @type bool | |
| 37 @param parent reference to the parent widget | |
| 38 @type QWidget | |
| 39 """ | |
| 40 super(E5FileSaveConfirmDialog, self).__init__(parent) | |
| 41 | |
| 42 self.setMinimumWidth(400) | |
| 43 | |
| 44 self.__selectedAction = "cancel" | |
| 45 self.__filename = filename | |
| 46 | |
| 47 self.__layout = QVBoxLayout(self) | |
| 48 | |
| 49 self.__label = QLabel(self) | |
| 50 self.__label.setWordWrap(True) | |
| 51 if message: | |
| 52 self.__label.setText(message) | |
| 53 else: | |
| 54 self.__label.setText(self.tr("The given file exists already.")) | |
| 55 | |
| 56 if picker: | |
| 57 self.__pathPicker = E5PathPicker(self) | |
| 58 self.__pathPicker.setMode(E5PathPickerModes.SaveFileMode) | |
| 59 else: | |
| 60 self.__pathPicker = E5ClearableLineEdit(self) | |
| 61 | |
| 62 self.__buttonBox = QDialogButtonBox(self) | |
| 63 self.__cancelButton = self.__buttonBox.addButton( | |
| 64 QDialogButtonBox.Cancel) | |
| 65 self.__overwriteButton = self.__buttonBox.addButton( | |
| 66 self.tr("Overwrite"), QDialogButtonBox.AcceptRole) | |
| 67 self.__renameButton = self.__buttonBox.addButton( | |
| 68 self.tr("Rename"), QDialogButtonBox.AcceptRole) | |
| 69 | |
| 70 self.__layout.addWidget(self.__label) | |
| 71 self.__layout.addWidget(self.__pathPicker) | |
| 72 self.__layout.addWidget(self.__buttonBox) | |
| 73 | |
| 74 # set values and states | |
| 75 self.__pathPicker.setText(filename) | |
| 76 if picker: | |
| 77 self.__pathPicker.setDefaultDirectory(os.path.dirname(filename)) | |
| 78 self.__renameButton.setEnabled(False) | |
| 79 self.__cancelButton.setDefault(True) | |
| 80 | |
| 81 self.__buttonBox.clicked.connect(self.__buttonBoxClicked) | |
| 82 self.__pathPicker.textChanged.connect(self.__filenameChanged) | |
| 83 | |
| 84 def __buttonBoxClicked(self, button): | |
| 85 """ | |
| 86 Private slot to handle the user clicking a button. | |
| 87 | |
| 88 @param button reference to the clicked button | |
| 89 @type QAbstractButton | |
| 90 """ | |
| 91 if button == self.__cancelButton: | |
| 92 self.__selectedAction = "cancel" | |
| 93 self.reject() | |
| 94 elif button == self.__renameButton: | |
| 95 self.__selectedAction = "rename" | |
| 96 self.accept() | |
| 97 elif button == self.__overwriteButton: | |
| 98 self.__selectedAction = "overwrite" | |
| 99 self.accept() | |
| 100 | |
| 101 def __filenameChanged(self, text): | |
| 102 """ | |
| 103 Private slot to handle a change of the file name. | |
| 104 | |
| 105 @param text new file name | |
| 106 @type str | |
| 107 """ | |
| 108 self.__renameButton.setEnabled(text != self.__filename) | |
| 109 | |
| 110 def selectedAction(self): | |
| 111 """ | |
| 112 Public method to get the selected action and associated data. | |
| 113 | |
| 114 @return tuple containing the selected action (cancel, rename, | |
| 115 overwrite) and the filename (in case of 'rename' or 'overwrite') | |
| 116 @rtype tuple of (str, str) | |
| 117 """ | |
| 118 if self.__selectedAction == "rename": | |
| 119 filename = self.__pathPicker.text() | |
| 120 elif self.__selectedAction == "overwrite": | |
| 121 filename = self.__filename | |
| 122 else: | |
| 123 filename = "" | |
| 124 return self.__selectedAction, filename | |
| 125 | |
| 126 | |
| 127 def confirmOverwrite(filename, title, message="", picker=True, parent=None): | |
| 128 """ | |
| 129 Function to confirm that a file shall be overwritten. | |
| 130 | |
| 131 @param filename file name to be shown | |
| 132 @type str | |
| 133 @param message message to be shown | |
| 134 @type str | |
| 135 @param title title for the dialog | |
| 136 @type str | |
| 137 @param picker flag indicating to use a path picker | |
| 138 @type bool | |
| 139 @param parent reference to the parent widget | |
| 140 @type QWidget | |
| 141 @return tuple containing the selected action (cancel, rename, | |
| 142 overwrite) and the filename (in case of 'rename' or 'overwrite') | |
| 143 @rtype tuple of (str, str) | |
| 144 """ | |
| 145 dlg = E5FileSaveConfirmDialog(filename, title, message=message, | |
| 146 picker=picker, parent=parent) | |
| 147 dlg.exec_() | |
| 148 return dlg.selectedAction() |
