src/eric7/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py

branch
eric7
changeset 9221
bf71ee032bb4
parent 9209
b99e7fd55fd3
child 9413
80c06d472826
--- a/src/eric7/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py	Wed Jul 13 11:16:20 2022 +0200
+++ b/src/eric7/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py	Wed Jul 13 14:55:47 2022 +0200
@@ -28,52 +28,50 @@
     Class implementing a dialog to show the output of the hg diff command
     process.
     """
+
     def __init__(self, vcs, parent=None):
         """
         Constructor
-        
+
         @param vcs reference to the vcs object
         @param parent parent widget (QWidget)
         """
         super().__init__(parent)
         self.setupUi(self)
-        
+
         self.refreshButton = self.buttonBox.addButton(
-            self.tr("Refresh"), QDialogButtonBox.ButtonRole.ActionRole)
-        self.refreshButton.setToolTip(
-            self.tr("Press to refresh the display"))
+            self.tr("Refresh"), QDialogButtonBox.ButtonRole.ActionRole
+        )
+        self.refreshButton.setToolTip(self.tr("Press to refresh the display"))
         self.refreshButton.setEnabled(False)
-        self.buttonBox.button(
-            QDialogButtonBox.StandardButton.Save).setEnabled(False)
-        self.buttonBox.button(
-            QDialogButtonBox.StandardButton.Close).setDefault(True)
-        
+        self.buttonBox.button(QDialogButtonBox.StandardButton.Save).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.StandardButton.Close).setDefault(True)
+
         self.searchWidget.attachTextEdit(self.contents)
-        
+
         self.vcs = vcs
-        
+
         font = Preferences.getEditorOtherFonts("MonospacedFont")
         self.contents.document().setDefaultFont(font)
-        
+
         self.highlighter = HgDiffHighlighter(self.contents.document())
-        
+
         self.__diffGenerator = HgDiffGenerator(vcs, self)
         self.__diffGenerator.finished.connect(self.__generatorFinished)
-    
+
     def closeEvent(self, e):
         """
         Protected slot implementing a close event handler.
-        
+
         @param e close event (QCloseEvent)
         """
         self.__diffGenerator.stopProcess()
         e.accept()
-    
-    def start(self, fn, versions=None, bundle=None, qdiff=False,
-              refreshable=False):
+
+    def start(self, fn, versions=None, bundle=None, qdiff=False, refreshable=False):
         """
         Public slot to start the hg diff command.
-        
+
         @param fn filename to be diffed (string)
         @param versions list of versions to be diffed (list of up to
             2 strings or None)
@@ -82,98 +80,95 @@
         @param refreshable flag indicating a refreshable diff (boolean)
         """
         self.refreshButton.setVisible(refreshable)
-        
+
         self.errorGroup.hide()
         self.filename = fn
-        
+
         self.contents.clear()
         self.filesCombo.clear()
         self.highlighter.regenerateRules()
-        
+
         if qdiff:
             self.setWindowTitle(self.tr("Patch Contents"))
-        
+
         self.raise_()
         self.activateWindow()
-        
+
         procStarted = self.__diffGenerator.start(
-            fn, versions=versions, bundle=bundle, qdiff=qdiff)
+            fn, versions=versions, bundle=bundle, qdiff=qdiff
+        )
         if not procStarted:
             EricMessageBox.critical(
                 self,
-                self.tr('Process Generation Error'),
+                self.tr("Process Generation Error"),
                 self.tr(
-                    'The process {0} could not be started. '
-                    'Ensure, that it is in the search path.'
-                ).format('hg'))
-    
+                    "The process {0} could not be started. "
+                    "Ensure, that it is in the search path."
+                ).format("hg"),
+            )
+
     def __generatorFinished(self):
         """
         Private slot connected to the finished signal.
         """
         self.refreshButton.setEnabled(True)
-        
+
         diff, errors, fileSeparators = self.__diffGenerator.getResult()
-        
+
         if diff:
             self.contents.setPlainText("".join(diff))
         else:
-            self.contents.setPlainText(
-                self.tr('There is no difference.'))
-        
+            self.contents.setPlainText(self.tr("There is no difference."))
+
         if errors:
             self.errorGroup.show()
             self.errors.setPlainText("".join(errors))
             self.errors.ensureCursorVisible()
-        
-        self.buttonBox.button(
-            QDialogButtonBox.StandardButton.Save).setEnabled(bool(diff))
-        self.buttonBox.button(
-            QDialogButtonBox.StandardButton.Close).setEnabled(True)
-        self.buttonBox.button(
-            QDialogButtonBox.StandardButton.Close).setDefault(True)
-        self.buttonBox.button(
-            QDialogButtonBox.StandardButton.Close).setFocus(
-                Qt.FocusReason.OtherFocusReason)
-        
+
+        self.buttonBox.button(QDialogButtonBox.StandardButton.Save).setEnabled(
+            bool(diff)
+        )
+        self.buttonBox.button(QDialogButtonBox.StandardButton.Close).setEnabled(True)
+        self.buttonBox.button(QDialogButtonBox.StandardButton.Close).setDefault(True)
+        self.buttonBox.button(QDialogButtonBox.StandardButton.Close).setFocus(
+            Qt.FocusReason.OtherFocusReason
+        )
+
         tc = self.contents.textCursor()
         tc.movePosition(QTextCursor.MoveOperation.Start)
         self.contents.setTextCursor(tc)
         self.contents.ensureCursorVisible()
-        
+
         self.filesCombo.addItem(self.tr("<Start>"), 0)
         self.filesCombo.addItem(self.tr("<End>"), -1)
         for oldFile, newFile, pos in sorted(fileSeparators):
             if not oldFile:
                 self.filesCombo.addItem(newFile, pos)
             elif oldFile != newFile:
-                self.filesCombo.addItem(
-                    "{0}\n{1}".format(oldFile, newFile), pos)
+                self.filesCombo.addItem("{0}\n{1}".format(oldFile, newFile), pos)
             else:
                 self.filesCombo.addItem(oldFile, pos)
-    
+
     def on_buttonBox_clicked(self, button):
         """
         Private slot called by a button of the button box clicked.
-        
+
         @param button button that was clicked (QAbstractButton)
         """
-        if button == self.buttonBox.button(
-            QDialogButtonBox.StandardButton.Save
-        ):
+        if button == self.buttonBox.button(QDialogButtonBox.StandardButton.Save):
             self.on_saveButton_clicked()
         elif button == self.refreshButton:
             self.on_refreshButton_clicked()
-    
+
     @pyqtSlot(int)
     def on_filesCombo_activated(self, index):
         """
         Private slot to handle the selection of a file.
-        
+
         @param index activated row (integer)
         """
         para = self.filesCombo.itemData(index)
-        
+
         if para == 0:
             tc = self.contents.textCursor()
             tc.movePosition(QTextCursor.MoveOperation.Start)
@@ -190,21 +185,23 @@
             tc.movePosition(QTextCursor.MoveOperation.End)
             self.contents.setTextCursor(tc)
             self.contents.ensureCursorVisible()
-            
+
             # step 2: move cursor to desired line
             tc = self.contents.textCursor()
             delta = tc.blockNumber() - para
-            tc.movePosition(QTextCursor.MoveOperation.PreviousBlock,
-                            QTextCursor.MoveMode.MoveAnchor,
-                            delta)
+            tc.movePosition(
+                QTextCursor.MoveOperation.PreviousBlock,
+                QTextCursor.MoveMode.MoveAnchor,
+                delta,
+            )
             self.contents.setTextCursor(tc)
             self.contents.ensureCursorVisible()
-    
+
     @pyqtSlot()
     def on_saveButton_clicked(self):
         """
         Private slot to handle the Save button press.
-        
+
         It saves the diff shown in the dialog to a file in the local
         filesystem.
         """
@@ -213,24 +210,25 @@
                 fname = self.vcs.splitPathList(self.filename)[0]
             else:
                 dname, fname = self.vcs.splitPath(self.filename[0])
-                if fname != '.':
+                if fname != ".":
                     fname = "{0}.diff".format(self.filename[0])
                 else:
                     fname = dname
         else:
             fname = self.vcs.splitPath(self.filename)[0]
-        
+
         fname, selectedFilter = EricFileDialog.getSaveFileNameAndFilter(
             self,
             self.tr("Save Diff"),
             fname,
             self.tr("Patch Files (*.diff)"),
             None,
-            EricFileDialog.DontConfirmOverwrite)
-        
+            EricFileDialog.DontConfirmOverwrite,
+        )
+
         if not fname:
             return  # user aborted
-        
+
         fpath = pathlib.Path(fname)
         if not fpath.suffix:
             ex = selectedFilter.split("(*")[1].split(")")[0]
@@ -240,34 +238,36 @@
             res = EricMessageBox.yesNo(
                 self,
                 self.tr("Save Diff"),
-                self.tr("<p>The patch file <b>{0}</b> already exists."
-                        " Overwrite it?</p>").format(fpath),
-                icon=EricMessageBox.Warning)
+                self.tr(
+                    "<p>The patch file <b>{0}</b> already exists." " Overwrite it?</p>"
+                ).format(fpath),
+                icon=EricMessageBox.Warning,
+            )
             if not res:
                 return
-        
+
         eol = ericApp().getObject("Project").getEolString()
         try:
             with fpath.open("w", encoding="utf-8", newline="") as f:
                 f.write(eol.join(self.contents.toPlainText().splitlines()))
         except OSError as why:
             EricMessageBox.critical(
-                self, self.tr('Save Diff'),
+                self,
+                self.tr("Save Diff"),
                 self.tr(
-                    '<p>The patch file <b>{0}</b> could not be saved.'
-                    '<br>Reason: {1}</p>')
-                .format(fpath, str(why)))
-    
+                    "<p>The patch file <b>{0}</b> could not be saved."
+                    "<br>Reason: {1}</p>"
+                ).format(fpath, str(why)),
+            )
+
     @pyqtSlot()
     def on_refreshButton_clicked(self):
         """
         Private slot to refresh the display.
         """
-        self.buttonBox.button(
-            QDialogButtonBox.StandardButton.Close).setEnabled(False)
-        
-        self.buttonBox.button(
-            QDialogButtonBox.StandardButton.Save).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.StandardButton.Close).setEnabled(False)
+
+        self.buttonBox.button(QDialogButtonBox.StandardButton.Save).setEnabled(False)
         self.refreshButton.setEnabled(False)
-        
+
         self.start(self.filename, refreshable=True)

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