+++ /dev/null
-#include "vumeter.h"
-
-#include <QPainter>
-#include <QRect>
-#include "vu_common.h"
-
-class QPaintEvent;
-class QResizeEvent;
-
-using namespace std;
-
-VUMeter::VUMeter(QWidget *parent)
- : QWidget(parent)
-{
-}
-
-void VUMeter::resizeEvent(QResizeEvent *event)
-{
- recalculate_pixmaps();
-}
-
-void VUMeter::paintEvent(QPaintEvent *event)
-{
- QPainter painter(this);
-
- float level_lufs[2], peak_lufs[2];
- {
- unique_lock<mutex> lock(level_mutex);
- level_lufs[0] = this->level_lufs[0];
- level_lufs[1] = this->level_lufs[1];
- peak_lufs[0] = this->peak_lufs[0];
- peak_lufs[1] = this->peak_lufs[1];
- }
-
- int mid = width() / 2;
-
- for (unsigned channel = 0; channel < 2; ++channel) {
- int left = (channel == 0) ? 0 : mid;
- int right = (channel == 0) ? mid : width();
- float level_lu = level_lufs[channel] - ref_level_lufs;
- int on_pos = lrint(lufs_to_pos(level_lu, height()));
-
- QRect off_rect(left, 0, right - left, on_pos);
- QRect on_rect(left, on_pos, right - left, height() - on_pos);
-
- painter.drawPixmap(off_rect, off_pixmap, off_rect);
- painter.drawPixmap(on_rect, on_pixmap, on_rect);
-
- float peak_lu = peak_lufs[channel] - ref_level_lufs;
- if (peak_lu >= min_level && peak_lu <= max_level) {
- int peak_pos = lrint(lufs_to_pos(peak_lu, height()));
- QRect peak_rect(left, peak_pos - 1, right, 2);
- painter.drawPixmap(peak_rect, full_on_pixmap, peak_rect);
- }
- }
-}
-
-void VUMeter::recalculate_pixmaps()
-{
- full_on_pixmap = QPixmap(width(), height());
- QPainter full_on_painter(&full_on_pixmap);
- full_on_painter.fillRect(0, 0, width(), height(), parentWidget()->palette().window());
- draw_vu_meter(full_on_painter, width(), height(), 0, 0.0, true, min_level, max_level, /*flip=*/false);
-
- float margin = 0.5 * (width() - 20);
-
- on_pixmap = QPixmap(width(), height());
- QPainter on_painter(&on_pixmap);
- on_painter.fillRect(0, 0, width(), height(), parentWidget()->palette().window());
- draw_vu_meter(on_painter, width(), height(), margin, 2.0, true, min_level, max_level, /*flip=*/false);
-
- off_pixmap = QPixmap(width(), height());
- QPainter off_painter(&off_pixmap);
- off_painter.fillRect(0, 0, width(), height(), parentWidget()->palette().window());
- draw_vu_meter(off_painter, width(), height(), margin, 2.0, false, min_level, max_level, /*flip=*/false);
-}