diff options
Diffstat (limited to 'dgedit/volumefader.cc')
-rw-r--r-- | dgedit/volumefader.cc | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/dgedit/volumefader.cc b/dgedit/volumefader.cc index 9a153a6..c7cb9d0 100644 --- a/dgedit/volumefader.cc +++ b/dgedit/volumefader.cc @@ -29,10 +29,20 @@ #include <QSlider> #include <QVBoxLayout> +#include <math.h> + +#define SCALAR 10 + VolumeFader::VolumeFader() { + volslider = new QSlider(); + volslider->setRange(-60 * SCALAR , 10 * SCALAR); + + connect(volslider, SIGNAL(valueChanged(int)), this, SLOT(handleValueChanged())); + QVBoxLayout* lo = new QVBoxLayout(); - lo->addWidget(new QSlider()); + lo->addWidget(volslider); + setLayout(lo); } @@ -59,3 +69,12 @@ void VolumeFader::setVolumePower(double vol) { } + +void VolumeFader::handleValueChanged() +{ + double db = ((double)volslider->value())/((double)SCALAR); + double power = pow(10, db/10); +// printf("Volume %f db, %f power\n", vol, pow(10, vol/10)); + emit volumeChangedDb(db); + emit volumeChangedPower(power); +} |