qt-everywhere-src-5.15.1/qtserialport/examples/serialport/terminal/console.cpp

/****************************************************************************
**
** Copyright (C) 2012 Denis Shienkov <denis.shienkov@gmail.com>
** Copyright (C) 2012 Laszlo Papp <lpapp@kde.org>
** Contact: https://www.qt.io/licensing/
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** This file is part of the QtSerialPort module of the Qt Toolkit.
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#include "console.h"

#include <QScrollBar>

Console::Console(QWidget *parent) :
    QPlainTextEdit(parent)
{
    document()->setMaximumBlockCount(100);
    QPalette p = palette();
    p.setColor(QPalette::Base, Qt::black);
    p.setColor(QPalette::Text, Qt::green);
    setPalette(p);
}

void Console::putData(const QByteArray &data)
{
    insertPlainText(data);

    QScrollBar *bar = verticalScrollBar();
    bar->setValue(bar->maximum());
}

void Console::setLocalEchoEnabled(bool set)
{
    m_localEchoEnabled = set;
}

void Console::keyPressEvent(QKeyEvent *e)
{
    switch (e->key()) {
    case Qt::Key_Backspace:
    case Qt::Key_Left:
    case Qt::Key_Right:
    case Qt::Key_Up:
    case Qt::Key_Down:
        break;
    default:
        if (m_localEchoEnabled)
            QPlainTextEdit::keyPressEvent(e);
        emit getData(e->text().toLocal8Bit());
    }
}

void Console::mousePressEvent(QMouseEvent *e)
{
    Q_UNUSED(e)
    setFocus();
}

void Console::mouseDoubleClickEvent(QMouseEvent *e)
{
    Q_UNUSED(e)
}

void Console::contextMenuEvent(QContextMenuEvent *e)
{
    Q_UNUSED(e)
}