Increase precision of volume widget slider

lib/utils/double-slider.hpp

@@ -0,0 +1,40 @@
+// Based on OBS DoubleSlider and SliderIgnoreScroll implementation
+
+#pragma once
+#include "export-symbol-helper.hpp"
+
+#include <QSlider>
+
+namespace advss {
+
+class SliderIgnoreScroll : public QSlider {
+	Q_OBJECT
+
+public:
+	SliderIgnoreScroll(QWidget *parent = nullptr);
+	SliderIgnoreScroll(Qt::Orientation orientation,
+			   QWidget *parent = nullptr);
+
+protected:
+	virtual void wheelEvent(QWheelEvent *event) override;
+};
+
+class ADVSS_EXPORT DoubleSlider : public SliderIgnoreScroll {
+	Q_OBJECT
+
+	double minVal = 0, maxVal = 100, minStep = 1;
+
+public:
+	DoubleSlider(QWidget *parent = nullptr);
+
+	void SetDoubleConstraints(double newMin, double newMax, double newStep,
+				  double val);
+	double DoubleValue();
+signals:
+	void DoubleValChanged(double val);
+
+public slots:
+	void SetDoubleVal(double val);
+};
+
+} // namespace advss