matrixion/src/ui/InfoMessage.cpp

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#include "InfoMessage.h"
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#include "Config.h"
#include <QDateTime>
#include <QPainter>
#include <QPen>
constexpr int VPadding = 6;
constexpr int HPadding = 12;
constexpr int HMargin = 20;
InfoMessage::InfoMessage(QWidget *parent)
: QWidget{parent}
{
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initFont();
}
InfoMessage::InfoMessage(QString msg, QWidget *parent)
: QWidget{parent}
, msg_{msg}
{
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initFont();
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QFontMetrics fm{font()};
width_ = fm.horizontalAdvance(msg_) + HPadding * 2;
height_ = fm.ascent() + 2 * VPadding;
setFixedHeight(height_ + 2 * HMargin);
}
void
InfoMessage::paintEvent(QPaintEvent *)
{
QPainter p(this);
p.setRenderHint(QPainter::Antialiasing);
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p.setFont(font());
// Center the box horizontally & vertically.
auto textRegion = QRectF(width() / 2 - width_ / 2, HMargin, width_, height_);
QPainterPath ppath;
ppath.addRoundedRect(textRegion, height_ / 2, height_ / 2);
p.setPen(Qt::NoPen);
p.fillPath(ppath, boxColor());
p.drawPath(ppath);
p.setPen(QPen(textColor()));
p.drawText(textRegion, Qt::AlignCenter, msg_);
}
DateSeparator::DateSeparator(QDateTime datetime, QWidget *parent)
: InfoMessage{parent}
{
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auto now = QDateTime::currentDateTime();
QString fmt;
if (now.date().year() != datetime.date().year())
fmt = QString("ddd d MMMM yy");
else
fmt = QString("ddd d MMMM");
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msg_ = datetime.toString(fmt);
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QFontMetrics fm{font()};
width_ = fm.horizontalAdvance(msg_) + HPadding * 2;
height_ = fm.ascent() + 2 * VPadding;
setFixedHeight(height_ + 2 * HMargin);
}