Add empty classes for Timing[Line,Syl,Separator]

src/UI/DocumentViews/AudioVisualizer/TimingLine.cc

+#include "TimingLine.hh"
+
+#include <QPainter>
+#include <QGraphicsScene>
+
+#include "TimingUtils.hh"
+
+using namespace Vivy;
+
+TimingLine::TimingLine(QGraphicsItem *parent)
+    : QGraphicsItem(parent)
+{
+}
+
+QRectF
+TimingLine::boundingRect() const
+{
+    return QRectF();
+}
+
+void
+TimingLine::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+}

src/UI/DocumentViews/AudioVisualizer/TimingLine.hh

+#pragma once
+
+#include <QGraphicsItem>
+
+namespace Vivy
+{
+class TimingLine final : public QGraphicsItem {
+public:
+    explicit TimingLine(QGraphicsItem *parent = nullptr);
+
+    QRectF boundingRect() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
+};
+
+}

src/UI/DocumentViews/AudioVisualizer/TimingSeparator.cc

+#include "TimingSeparator.hh"
+
+#include <QPainter>
+#include <QGraphicsScene>
+
+#include "TimingUtils.hh"
+
+using namespace Vivy;
+
+TimingSeparator::TimingSeparator(QGraphicsItem *parent)
+    : QGraphicsItem(parent)
+{
+}
+
+QRectF
+TimingSeparator::boundingRect() const
+{
+    return QRectF();
+}
+
+void
+TimingSeparator::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+}

src/UI/DocumentViews/AudioVisualizer/TimingSeparator.hh

+#pragma once
+
+#include <QGraphicsItem>
+
+namespace Vivy
+{
+class TimingSeparator final : public QGraphicsItem {
+public:
+    explicit TimingSeparator(QGraphicsItem *parent = nullptr);
+
+    QRectF boundingRect() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
+};
+
+}

src/UI/DocumentViews/AudioVisualizer/TimingSyl.cc

+#include "TimingSyl.hh"
+
+#include <QPainter>
+#include <QGraphicsScene>
+
+#include "TimingUtils.hh"
+
+using namespace Vivy;
+
+TimingSyl::TimingSyl(QGraphicsItem *parent)
+    : QGraphicsItem(parent)
+{
+}
+
+QRectF
+TimingSyl::boundingRect() const
+{
+    return QRectF();
+}
+
+void
+TimingSyl::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+}

src/UI/DocumentViews/AudioVisualizer/TimingSyl.hh

+#pragma once
+
+#include <QGraphicsItem>
+
+namespace Vivy
+{
+class TimingSyl final : public QGraphicsItem {
+public:
+    explicit TimingSyl(QGraphicsItem *parent = nullptr);
+
+    QRectF boundingRect() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
+};
+
+}

src/UI/DocumentViews/AudioVisualizer/TimingUtils.hh

@@ -7,6 +7,8 @@
 #include <QRectF>
 #include <QString>
 
+#define getTimingScene() static_cast<TimingScene *>(scene())
+
 namespace Vivy
 {
 class TimingUtils {

src/UI/DocumentViews/AudioVisualizer/TimingView.cc

@@ -34,9 +34,3 @@ TimingView::moveScrollBarToBottom(int, int max) noexcept
 {
     verticalScrollBar()->setValue(max);
 }
-
-TimingScene *
-TimingView::getTimingScene() const
-{
-    return static_cast<TimingScene *>(scene());
-}

src/UI/DocumentViews/AudioVisualizer/TimingView.hh

@@ -25,7 +25,6 @@ public:
                         QWidget * = nullptr) noexcept;
     ~TimingView() noexcept override = default;
 
-    TimingScene *getTimingScene() const;
     void wheelEvent(QWheelEvent *) noexcept override;
 
 private: