Revision control
++ // Copyright (C) 2017 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #ifndef PLAINTEXTEDIT_H
++ #define PLAINTEXTEDIT_H
++
++ #include <QMenu>
++ #include <QPlainTextEdit>
++
++ class PlainTextEdit : public QPlainTextEdit
++ {
++ Q_OBJECT
++ Q_DISABLE_COPY(PlainTextEdit)
++
++ public Q_SLOT:
++ void setFocus() {
++ QWidget::setFocus();
++ }
++
++ public:
++ explicit PlainTextEdit(QWidget *parent = nullptr)
++ : QPlainTextEdit(parent)
++ {}
++
++ void keyPressEvent(QKeyEvent *e)
++ {
++ switch (e->key()) {
++ case Qt::Key_Delete:
++ case Qt::Key_Backspace:
++ setTextInteractionFlags(textInteractionFlags() | Qt::TextEditable);
++ QPlainTextEdit::keyPressEvent(e);
++ setTextInteractionFlags(textInteractionFlags() &~ Qt::TextEditable);
++ break;
++ default:
++ QPlainTextEdit::keyPressEvent(e);
++ }
++ }
++
++ void contextMenuEvent(QContextMenuEvent *event)
++ {
++ QMenu menu(this);
++ menu.addAction(tr("Clear"), this, &QPlainTextEdit::clear);
++ #ifndef QT_NO_CLIPBOARD
++ menu.addAction(tr("Copy"), QKeySequence::Copy, this, &QPlainTextEdit::copy);
++ #endif
++ menu.addSeparator();
++ menu.addAction(tr("Select All"), QKeySequence::SelectAll,
++ this, &QPlainTextEdit::selectAll);
++ menu.exec(event->globalPos());
++ }
++ };
++
++ #endif // PLAINTEXTEDIT_H