Mercurial Repositories > eric / file comparison
comparison: eric7/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py
eric7/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8218
- 7c09585bd960
- child 8318
- 962bce857696
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2010 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a dialog to show the output of the hg diff command process. | |
| 8 """ | |
| 9 | |
| 10 from PyQt5.QtCore import pyqtSlot, QFileInfo, Qt | |
| 11 from PyQt5.QtGui import QTextCursor | |
| 12 from PyQt5.QtWidgets import QWidget, QDialogButtonBox | |
| 13 | |
| 14 from E5Gui import E5MessageBox, E5FileDialog | |
| 15 from E5Gui.E5Application import e5App | |
| 16 | |
| 17 from .Ui_HgDiffDialog import Ui_HgDiffDialog | |
| 18 from .HgDiffHighlighter import HgDiffHighlighter | |
| 19 from .HgDiffGenerator import HgDiffGenerator | |
| 20 | |
| 21 import Utilities | |
| 22 import Preferences | |
| 23 | |
| 24 | |
| 25 class HgDiffDialog(QWidget, Ui_HgDiffDialog): | |
| 26 """ | |
| 27 Class implementing a dialog to show the output of the hg diff command | |
| 28 process. | |
| 29 """ | |
| 30 def __init__(self, vcs, parent=None): | |
| 31 """ | |
| 32 Constructor | |
| 33 | |
| 34 @param vcs reference to the vcs object | |
| 35 @param parent parent widget (QWidget) | |
| 36 """ | |
| 37 super().__init__(parent) | |
| 38 self.setupUi(self) | |
| 39 | |
| 40 self.refreshButton = self.buttonBox.addButton( | |
| 41 self.tr("Refresh"), QDialogButtonBox.ButtonRole.ActionRole) | |
| 42 self.refreshButton.setToolTip( | |
| 43 self.tr("Press to refresh the display")) | |
| 44 self.refreshButton.setEnabled(False) | |
| 45 self.buttonBox.button( | |
| 46 QDialogButtonBox.StandardButton.Save).setEnabled(False) | |
| 47 self.buttonBox.button( | |
| 48 QDialogButtonBox.StandardButton.Close).setDefault(True) | |
| 49 | |
| 50 self.searchWidget.attachTextEdit(self.contents) | |
| 51 | |
| 52 self.vcs = vcs | |
| 53 | |
| 54 font = Preferences.getEditorOtherFonts("MonospacedFont") | |
| 55 self.contents.document().setDefaultFont(font) | |
| 56 | |
| 57 self.highlighter = HgDiffHighlighter(self.contents.document()) | |
| 58 | |
| 59 self.__diffGenerator = HgDiffGenerator(vcs, self) | |
| 60 self.__diffGenerator.finished.connect(self.__generatorFinished) | |
| 61 | |
| 62 def closeEvent(self, e): | |
| 63 """ | |
| 64 Protected slot implementing a close event handler. | |
| 65 | |
| 66 @param e close event (QCloseEvent) | |
| 67 """ | |
| 68 self.__diffGenerator.stopProcess() | |
| 69 e.accept() | |
| 70 | |
| 71 def start(self, fn, versions=None, bundle=None, qdiff=False, | |
| 72 refreshable=False): | |
| 73 """ | |
| 74 Public slot to start the hg diff command. | |
| 75 | |
| 76 @param fn filename to be diffed (string) | |
| 77 @param versions list of versions to be diffed (list of up to | |
| 78 2 strings or None) | |
| 79 @param bundle name of a bundle file (string) | |
| 80 @param qdiff flag indicating qdiff command shall be used (boolean) | |
| 81 @param refreshable flag indicating a refreshable diff (boolean) | |
| 82 """ | |
| 83 self.refreshButton.setVisible(refreshable) | |
| 84 | |
| 85 self.errorGroup.hide() | |
| 86 self.filename = fn | |
| 87 | |
| 88 self.contents.clear() | |
| 89 self.filesCombo.clear() | |
| 90 self.highlighter.regenerateRules() | |
| 91 | |
| 92 if qdiff: | |
| 93 self.setWindowTitle(self.tr("Patch Contents")) | |
| 94 | |
| 95 self.raise_() | |
| 96 self.activateWindow() | |
| 97 | |
| 98 procStarted = self.__diffGenerator.start( | |
| 99 fn, versions=versions, bundle=bundle, qdiff=qdiff) | |
| 100 if not procStarted: | |
| 101 E5MessageBox.critical( | |
| 102 self, | |
| 103 self.tr('Process Generation Error'), | |
| 104 self.tr( | |
| 105 'The process {0} could not be started. ' | |
| 106 'Ensure, that it is in the search path.' | |
| 107 ).format('hg')) | |
| 108 | |
| 109 def __generatorFinished(self): | |
| 110 """ | |
| 111 Private slot connected to the finished signal. | |
| 112 """ | |
| 113 self.refreshButton.setEnabled(True) | |
| 114 | |
| 115 diff, errors, fileSeparators = self.__diffGenerator.getResult() | |
| 116 | |
| 117 if diff: | |
| 118 self.contents.setPlainText("".join(diff)) | |
| 119 else: | |
| 120 self.contents.setPlainText( | |
| 121 self.tr('There is no difference.')) | |
| 122 | |
| 123 if errors: | |
| 124 self.errorGroup.show() | |
| 125 self.errors.setPlainText("".join(errors)) | |
| 126 self.errors.ensureCursorVisible() | |
| 127 | |
| 128 self.buttonBox.button( | |
| 129 QDialogButtonBox.StandardButton.Save).setEnabled(bool(diff)) | |
| 130 self.buttonBox.button( | |
| 131 QDialogButtonBox.StandardButton.Close).setEnabled(True) | |
| 132 self.buttonBox.button( | |
| 133 QDialogButtonBox.StandardButton.Close).setDefault(True) | |
| 134 self.buttonBox.button( | |
| 135 QDialogButtonBox.StandardButton.Close).setFocus( | |
| 136 Qt.FocusReason.OtherFocusReason) | |
| 137 | |
| 138 tc = self.contents.textCursor() | |
| 139 tc.movePosition(QTextCursor.MoveOperation.Start) | |
| 140 self.contents.setTextCursor(tc) | |
| 141 self.contents.ensureCursorVisible() | |
| 142 | |
| 143 self.filesCombo.addItem(self.tr("<Start>"), 0) | |
| 144 self.filesCombo.addItem(self.tr("<End>"), -1) | |
| 145 for oldFile, newFile, pos in sorted(fileSeparators): | |
| 146 if not oldFile: | |
| 147 self.filesCombo.addItem(newFile, pos) | |
| 148 elif oldFile != newFile: | |
| 149 self.filesCombo.addItem( | |
| 150 "{0}\n{1}".format(oldFile, newFile), pos) | |
| 151 else: | |
| 152 self.filesCombo.addItem(oldFile, pos) | |
| 153 | |
| 154 def on_buttonBox_clicked(self, button): | |
| 155 """ | |
| 156 Private slot called by a button of the button box clicked. | |
| 157 | |
| 158 @param button button that was clicked (QAbstractButton) | |
| 159 """ | |
| 160 if button == self.buttonBox.button( | |
| 161 QDialogButtonBox.StandardButton.Save | |
| 162 ): | |
| 163 self.on_saveButton_clicked() | |
| 164 elif button == self.refreshButton: | |
| 165 self.on_refreshButton_clicked() | |
| 166 | |
| 167 @pyqtSlot(int) | |
| 168 def on_filesCombo_activated(self, index): | |
| 169 """ | |
| 170 Private slot to handle the selection of a file. | |
| 171 | |
| 172 @param index activated row (integer) | |
| 173 """ | |
| 174 para = self.filesCombo.itemData(index) | |
| 175 | |
| 176 if para == 0: | |
| 177 tc = self.contents.textCursor() | |
| 178 tc.movePosition(QTextCursor.MoveOperation.Start) | |
| 179 self.contents.setTextCursor(tc) | |
| 180 self.contents.ensureCursorVisible() | |
| 181 elif para == -1: | |
| 182 tc = self.contents.textCursor() | |
| 183 tc.movePosition(QTextCursor.MoveOperation.End) | |
| 184 self.contents.setTextCursor(tc) | |
| 185 self.contents.ensureCursorVisible() | |
| 186 else: | |
| 187 # step 1: move cursor to end | |
| 188 tc = self.contents.textCursor() | |
| 189 tc.movePosition(QTextCursor.MoveOperation.End) | |
| 190 self.contents.setTextCursor(tc) | |
| 191 self.contents.ensureCursorVisible() | |
| 192 | |
| 193 # step 2: move cursor to desired line | |
| 194 tc = self.contents.textCursor() | |
| 195 delta = tc.blockNumber() - para | |
| 196 tc.movePosition(QTextCursor.MoveOperation.PreviousBlock, | |
| 197 QTextCursor.MoveMode.MoveAnchor, | |
| 198 delta) | |
| 199 self.contents.setTextCursor(tc) | |
| 200 self.contents.ensureCursorVisible() | |
| 201 | |
| 202 @pyqtSlot() | |
| 203 def on_saveButton_clicked(self): | |
| 204 """ | |
| 205 Private slot to handle the Save button press. | |
| 206 | |
| 207 It saves the diff shown in the dialog to a file in the local | |
| 208 filesystem. | |
| 209 """ | |
| 210 if isinstance(self.filename, list): | |
| 211 if len(self.filename) > 1: | |
| 212 fname = self.vcs.splitPathList(self.filename)[0] | |
| 213 else: | |
| 214 dname, fname = self.vcs.splitPath(self.filename[0]) | |
| 215 if fname != '.': | |
| 216 fname = "{0}.diff".format(self.filename[0]) | |
| 217 else: | |
| 218 fname = dname | |
| 219 else: | |
| 220 fname = self.vcs.splitPath(self.filename)[0] | |
| 221 | |
| 222 fname, selectedFilter = E5FileDialog.getSaveFileNameAndFilter( | |
| 223 self, | |
| 224 self.tr("Save Diff"), | |
| 225 fname, | |
| 226 self.tr("Patch Files (*.diff)"), | |
| 227 None, | |
| 228 E5FileDialog.Options(E5FileDialog.DontConfirmOverwrite)) | |
| 229 | |
| 230 if not fname: | |
| 231 return # user aborted | |
| 232 | |
| 233 ext = QFileInfo(fname).suffix() | |
| 234 if not ext: | |
| 235 ex = selectedFilter.split("(*")[1].split(")")[0] | |
| 236 if ex: | |
| 237 fname += ex | |
| 238 if QFileInfo(fname).exists(): | |
| 239 res = E5MessageBox.yesNo( | |
| 240 self, | |
| 241 self.tr("Save Diff"), | |
| 242 self.tr("<p>The patch file <b>{0}</b> already exists." | |
| 243 " Overwrite it?</p>").format(fname), | |
| 244 icon=E5MessageBox.Warning) | |
| 245 if not res: | |
| 246 return | |
| 247 fname = Utilities.toNativeSeparators(fname) | |
| 248 | |
| 249 eol = e5App().getObject("Project").getEolString() | |
| 250 try: | |
| 251 with open(fname, "w", encoding="utf-8", newline="") as f: | |
| 252 f.write(eol.join(self.contents.toPlainText().splitlines())) | |
| 253 except OSError as why: | |
| 254 E5MessageBox.critical( | |
| 255 self, self.tr('Save Diff'), | |
| 256 self.tr( | |
| 257 '<p>The patch file <b>{0}</b> could not be saved.' | |
| 258 '<br>Reason: {1}</p>') | |
| 259 .format(fname, str(why))) | |
| 260 | |
| 261 @pyqtSlot() | |
| 262 def on_refreshButton_clicked(self): | |
| 263 """ | |
| 264 Private slot to refresh the display. | |
| 265 """ | |
| 266 self.buttonBox.button( | |
| 267 QDialogButtonBox.StandardButton.Close).setEnabled(False) | |
| 268 | |
| 269 self.buttonBox.button( | |
| 270 QDialogButtonBox.StandardButton.Save).setEnabled(False) | |
| 271 self.refreshButton.setEnabled(False) | |
| 272 | |
| 273 self.start(self.filename, refreshable=True) |
