void the_bar(t_env *env)
{
glBegin(GL_QUADS);
if (col_bar(env))
col_from_where(env);
glVertex2f(-0.1f + env->bar, -0.92f);
glVertex2f(0.1f + env->bar, -0.92f);
glVertex2f(0.1f + env->bar, -0.96f);
glVertex2f(-0.1f + env->bar, -0.96f);
glEnd();
}
void VUMeter::paintBar()
{
QPainter painter(this);
painter.setWindow(0, 0, 50, 500);
painter.setRenderHint(QPainter::HighQualityAntialiasing);
QLinearGradient linGrad(25, 0, 25, 500);
linGrad.setColorAt(0, colHigh);
linGrad.setColorAt(1, colLow);
linGrad.setSpread(QGradient::PadSpread);
painter.setBrush(linGrad);
// draw color bar
QRectF col_bar(10, 50, 30, 400);
painter.drawRect(col_bar);
// draw background bar
painter.setBrush(QColor(40, 40, 40));
int length = 400.0;
int bar = abs(length*(min-val)/(max-min));
QRectF back_bar(10, 50, 30, 400-bar);
painter.drawRect(back_bar);
}
