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Add a visual bell to TerminalWidget. Also backspace.

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This commit is contained in:
Andreas Kling 2018-10-12 20:05:11 +02:00
parent 20a1795218
commit fb4ae12bc2
4 changed files with 82 additions and 14 deletions
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61
Widgets/TerminalWidget.cpp
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@ -63,7 +63,7 @@ CharacterWithAttributes& TerminalWidget::at(unsigned row, unsigned column)
void TerminalWidget::onPaint(PaintEvent&)
{
Painter painter(*this);
painter.fillRect({ 0, 0, width(), height() }, Color(0, 0, 0));
painter.fillRect(rect(), Color(0, 0, 0));
auto& font = Font::defaultFont();
@ -76,6 +76,9 @@ void TerminalWidget::onPaint(PaintEvent&)
painter.drawText({ x + 2, y + 2, width(), font.glyphHeight() }, buf, Painter::TextAlignment::TopLeft, Color(0xa0, 0xa0, 0xa0));
}
}
if (m_belling)
painter.drawRect(rect(), Color::Red);
}
void TerminalWidget::onReceive(const ByteBuffer& buffer)
@ -105,20 +108,35 @@ void TerminalWidget::onReceive(byte ch)
}
};
if (ch == '\n') {
if (m_cursorRow < (m_rows - 1)) {
++m_cursorRow;
} else {
scrollScreen();
switch (ch) {
case '\n':
if (m_cursorRow < (m_rows - 1)) {
++m_cursorRow;
} else {
scrollScreen();
}
break;
case '\r':
m_cursorColumn = 0;
break;
case '\t':
// FIXME: Respect terminal tab stops.
while ((m_cursorColumn % 8) != 0 && m_cursorColumn < m_columns) {
addChar(' ');
break;
case '\a':
bell();
break;
case 8:
if (m_cursorColumn > 0) {
--m_cursorColumn;
at(m_cursorRow, m_cursorColumn).character = ' ';
}
break;
default:
addChar(ch);
break;
}
} else if (ch == '\r') {
m_cursorColumn = 0;
} else if (ch == '\t') {
while ((m_cursorColumn % 8) != 0 && m_cursorColumn < m_columns) {
addChar(' ');
}
} else {
addChar(ch);
}
update();
}
@ -136,3 +154,18 @@ void TerminalWidget::onKeyUp(KeyEvent& event)
return Widget::onKeyUp(event);
}
void TerminalWidget::bell()
{
if (m_belling)
stopTimer();
startTimer(250);
m_belling = true;
update();
}
void TerminalWidget::onTimer(TimerEvent&)
{
m_belling = false;
stopTimer();
update();
}