#include <QPainter>
#include <QPalette>
#include <QPen>
+#include <QRect>
+
#include "vu_common.h"
class QPaintEvent;
+class QResizeEvent;
using namespace std;
{
}
+void LRAMeter::resizeEvent(QResizeEvent *event)
+{
+ recalculate_pixmaps();
+}
+
void LRAMeter::paintEvent(QPaintEvent *event)
{
QPainter painter(this);
- painter.fillRect(0, 0, width(), height(), parentWidget()->palette().window());
-
float level_lufs;
float range_low_lufs;
float range_high_lufs;
range_high_lufs = this->range_high_lufs;
}
- float level_lu = level_lufs + 23.0f;
- float range_low_lu = range_low_lufs + 23.0f;
- float range_high_lu = range_high_lufs + 23.0f;
- const int margin = 5;
- draw_vu_meter(painter, range_low_lu, range_high_lu, width(), height(), margin);
+ float level_lu = level_lufs - ref_level_lufs;
+ float range_low_lu = range_low_lufs - ref_level_lufs;
+ float range_high_lu = range_high_lufs - ref_level_lufs;
+ int range_low_pos = lrint(lufs_to_pos(range_low_lu, height()));
+ int range_high_pos = lrint(lufs_to_pos(range_high_lu, height()));
+
+ QRect top_off_rect(0, 0, width(), range_high_pos);
+ QRect on_rect(0, range_high_pos, width(), range_low_pos - range_high_pos);
+ QRect bottom_off_rect(0, range_low_pos, width(), height() - range_low_pos);
+
+ painter.drawPixmap(top_off_rect, off_pixmap, top_off_rect);
+ painter.drawPixmap(on_rect, on_pixmap, on_rect);
+ painter.drawPixmap(bottom_off_rect, off_pixmap, bottom_off_rect);
// Draw the target area (+/-1 LU is allowed EBU range).
// It turns green when we're within.
- int min_y = lufs_to_pos(1.0f, height());
- int max_y = lufs_to_pos(-1.0f, height());
+ int min_y = lrint(lufs_to_pos(1.0f, height()));
+ int max_y = lrint(lufs_to_pos(-1.0f, height()));
// FIXME: This outlining isn't so pretty.
{
}
// Draw the integrated loudness meter, in the same color as the target area.
- int y = lufs_to_pos(level_lu, height());
+ int y = lrint(lufs_to_pos(level_lu, height()));
{
QPen pen(Qt::black);
pen.setWidth(5);
painter.drawRect(2, y, width() - 5, 1);
}
}
+
+void LRAMeter::recalculate_pixmaps()
+{
+ const int margin = 5;
+
+ 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);
+}