47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
/*
|
|
This file is part of Telegram Desktop,
|
|
the official desktop application for the Telegram messaging service.
|
|
|
|
For license and copyright information please follow this link:
|
|
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
|
|
*/
|
|
#include "ui/widgets/level_meter.h"
|
|
|
|
#include "ui/painter.h"
|
|
|
|
namespace Ui {
|
|
|
|
LevelMeter::LevelMeter(QWidget *parent, const style::LevelMeter &st)
|
|
: RpWidget(parent)
|
|
, _st(st) {
|
|
}
|
|
|
|
void LevelMeter::setValue(float value) {
|
|
_value = value;
|
|
repaint();
|
|
}
|
|
|
|
void LevelMeter::paintEvent(QPaintEvent* event) {
|
|
auto p = QPainter(this);
|
|
PainterHighQualityEnabler hq(p);
|
|
|
|
p.setPen(Qt::NoPen);
|
|
|
|
const auto activeFg = _st.activeFg;
|
|
const auto inactiveFg = _st.inactiveFg;
|
|
const auto radius = _st.lineWidth / 2;
|
|
const auto rect = QRect(0, 0, _st.lineWidth, height());
|
|
p.setBrush(activeFg);
|
|
for (auto i = 0; i < _st.lineCount; ++i) {
|
|
const auto valueAtLine = (float)(i + 1) / _st.lineCount;
|
|
if (valueAtLine > _value) {
|
|
p.setBrush(inactiveFg);
|
|
}
|
|
p.drawRoundedRect(
|
|
rect.translated((_st.lineWidth + _st.lineSpacing) * i, 0),
|
|
radius,
|
|
radius);
|
|
}
|
|
}
|
|
|
|
} // namespace Ui
|