Draft: improve the audio vizualiser

TODO:

• Add time axis
• Add a way to zoom in / zoom out on X axis
• Add a way to change "audio sensibility" for spectrum
• Add the display of timed lines/syl
• Make the timing Bar draggable and reflect the changes in the ASS
• Maybe add lots of rainbowish colors to the spectrum because rainbows are great

src/UI/DocumentViews/AudioVisualizer.cc

@@ -77,18 +77,15 @@ void
 AudioVisualizer::printSpectrum(QImage pixmap, quint64 audioLength) noexcept
 {
     TimingView *timer   = new TimingView(pixmap, audioLength, this);
-    QHBoxLayout *layout = new QHBoxLayout;
-
-    QSlider* slider = new QSlider(Qt::Vertical);
-    slider->setMinimum(0);
-    slider->setMaximum(100);
-    slider->setSingleStep(0);
-    slider->setPageStep(0);
-    slider->setValue(0);
-
-    connect(slider, &QSlider::valueChanged, timer->getTimingScene()->getAxis(), &TimingAxis::refreshTicks);
-
-    layout->addWidget(timer);
-    layout->addWidget(slider);
+    TimingParams *params= new TimingParams(this);
+
+    // The only that we want to take all the space is the timer in itself
+    QGridLayout *layout = new QGridLayout;
+    layout->addWidget(timer, 1, 0);
+    layout->setColumnStretch(0, 10);
+    layout->addWidget(params, 1, 1);
+    layout->setColumnStretch(1, 0);
     setLayout(layout);
+
+    connect(params->getZoomSlider(), &QSlider::valueChanged, timer->getTimingScene()->getAxis(), &TimingAxis::refreshTicks);
 }