Fix #516: Option to fully highlight wrapped-lines (#523)

This commit resolves the issue while still maintaining the current behaviour.

Changes:
· ReText/__init__.py
    Change default value of highlightCurrentLine to 'disabled'.
· ReText/config.py
    Add a combobox for the line highlighting setting with options:
        - "Disabled": no line highlighting;
        - "Cursor Line": line highlighting till EOL (current behaviour);
        - "Wrapped Line": line highlighting for whole wrapped line.
· ReText/editor.py
    Modify highlightCurrentLine() to achieve the intended behaviour.

ReText/__init__.py

@@ -76,7 +76,7 @@ def getBundledIcon(iconName):
 	'font': QFont(),
 	'handleWebLinks': False,
 	'hideToolBar': False,
-	'highlightCurrentLine': False,
+	'highlightCurrentLine': 'disabled',
 	'iconTheme': '',
 	'lastTabIndex': 0,
 	'lineNumbersEnabled': False,

ReText/config.py

@@ -171,6 +171,13 @@ def getPageWidget(self, options):
 				self.configurators[name].addItem(self.tr('Normal preview'), 'normal-preview')
 				comboBoxIndex = self.configurators[name].findData(value)
 				self.configurators[name].setCurrentIndex(comboBoxIndex)
+			elif name == 'highlightCurrentLine':
+				self.configurators[name] = QComboBox(self)
+				self.configurators[name].addItem(self.tr('Disabled'), 'disabled')
+				self.configurators[name].addItem(self.tr('Cursor Line'), 'cursor-line')
+				self.configurators[name].addItem(self.tr('Wrapped Line'), 'wrapped-line')
+				comboBoxIndex = self.configurators[name].findData(value)
+				self.configurators[name].setCurrentIndex(comboBoxIndex)
 			elif isinstance(value, bool):
 				self.configurators[name] = QCheckBox(self)
 				self.configurators[name].setChecked(value)

ReText/editor.py

@@ -370,14 +370,23 @@ def resizeEvent(self, event):
 	def highlightCurrentLine(self):
 		if globalSettings.relativeLineNumbers:
 			self.lineNumberArea.update()
-		if not globalSettings.highlightCurrentLine:
+		if globalSettings.highlightCurrentLine == 'disabled':
 			return self.setExtraSelections([])
-		selection = QTextEdit.ExtraSelection();
+		selection = QTextEdit.ExtraSelection()
 		selection.format.setBackground(colorValues['currentLineHighlight'])
 		selection.format.setProperty(QTextFormat.FullWidthSelection, True)
 		selection.cursor = self.textCursor()
 		selection.cursor.clearSelection()
-		self.setExtraSelections([selection])
+		selections = [selection]
+		if globalSettings.highlightCurrentLine == 'wrapped-line':
+			selections.append(QTextEdit.ExtraSelection())
+			selections[0].cursor.movePosition(QTextCursor.StartOfBlock)
+			selections[0].cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
+			selections[1].format.setBackground(colorValues['currentLineHighlight'])
+			selections[1].format.setProperty(QTextFormat.FullWidthSelection, True)
+			selections[1].cursor = self.textCursor()
+			selections[1].cursor.movePosition(QTextCursor.EndOfBlock)
+		self.setExtraSelections(selections)
 
 	def enableTableMode(self, enable):
 		self.tableModeEnabled = enable