void GenericCodeEditor::moveLineUpDown(bool up) { // directly taken from qtcreator // Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies). // GNU Lesser General Public License QTextCursor cursor = textCursor(); QTextCursor move = cursor; move.setVisualNavigation(false); // this opens folded items instead of destroying them move.beginEditBlock(); bool hasSelection = cursor.hasSelection(); if (cursor.hasSelection()) { move.setPosition(cursor.selectionStart()); move.movePosition(QTextCursor::StartOfBlock); move.setPosition(cursor.selectionEnd(), QTextCursor::KeepAnchor); move.movePosition(move.atBlockStart() ? QTextCursor::Left: QTextCursor::EndOfBlock, QTextCursor::KeepAnchor); } else { move.movePosition(QTextCursor::StartOfBlock); move.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor); } QString text = move.selectedText(); move.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor); move.removeSelectedText(); if (up) { move.movePosition(QTextCursor::PreviousBlock); move.insertBlock(); move.movePosition(QTextCursor::Left); } else { move.movePosition(QTextCursor::EndOfBlock); if (move.atBlockStart()) { // empty block move.movePosition(QTextCursor::NextBlock); move.insertBlock(); move.movePosition(QTextCursor::Left); } else { move.insertBlock(); } } int start = move.position(); move.clearSelection(); move.insertText(text); int end = move.position(); if (hasSelection) { move.setPosition(start); move.setPosition(end, QTextCursor::KeepAnchor); } move.endEditBlock(); setTextCursor(move); }