refactor: remove unused m_sidebarCollapsedSize from SlicerPage

refactor(audio-visualizer): fix Y-label positioning with splitter offset, connect vertical scroll, hardcode playcursor line width

refactor(phoneme-editor): use chartRect.width() in paintYAxisContent instead of yAxisWidth()

refactor(phoneme-editor): reformat TierLabelPanel, extract TierLabelArea setViewportController, add IntervalTierView setViewport

refactor(phoneme-editor): reformat ChartPanelBase and add verticalContentScrolled signal

refactor(pitch-editor): replace hScale with pixelsPerSecond() derived from coord, remove getPixelsPerSecond()

fix(pitch-editor): guard sidebar restore with isEmpty check, save expanded sizes on toggle

refactor(pitch-editor): restructure PropertyPanel from 3-column to single-column layout with sections

refactor(pitch-editor): forward onViewportUpdate to ChartPanelBase, bridge verticalScrolled signal

Author: wolfgitpr

src/apps/shared/audio-visualizer/AudioVisualizerContainer.cpp

@@ -12,6 +12,7 @@
 #include <QPointer>
 #include <QResizeEvent>
 #include <QTimer>
+#include <QVBoxLayout>
 #include <QWheelEvent>
 #include <algorithm>
 #include <dsfw/widgets/PlayWidget.h>
@@ -69,7 +70,7 @@ namespace dstools {
         m_chartSplitter->setHandleWidth(4);
         m_chartSplitter->setStyleSheet(QStringLiteral("QSplitter::handle { background-color: transparent; }"));
         m_chartSplitter->installEventFilter(this);
-        m_dataArea->layout()->addWidget(m_chartSplitter, 1);
+        static_cast<QVBoxLayout *>(m_dataArea->layout())->addWidget(m_chartSplitter, 1);
 
         m_boundaryOverlay = new BoundaryOverlayWidget(m_viewport, m_dataArea);
         m_boundaryOverlay->trackWidget(m_chartSplitter);
@@ -339,6 +340,8 @@ namespace dstools {
         if (!m_leftPane || !m_chartSplitter)
             return;
 
+        int splitterY = m_chartSplitter->pos().y();
+
         for (int i = 0; i < m_chartSplitter->count(); ++i) {
             QWidget *child = m_chartSplitter->widget(i);
             if (!child->isVisible())
@@ -351,15 +354,20 @@ namespace dstools {
             if (!labelWidget)
                 continue;
 
-            QPoint childPos = child->pos();
-            int yOffset = childPos.y();
+            int yOffset = splitterY + child->pos().y();
             int childHeight = child->height();
 
             labelWidget->setFixedWidth(m_yAxisWidth > 0 ? m_yAxisWidth : 52);
             labelWidget->move(0, yOffset);
             labelWidget->setFixedHeight(childHeight);
             labelWidget->show();
 
+            if (auto *base = dynamic_cast<phonemelabeler::ChartPanelBase *>(child)) {
+                QWidget *label = labelWidget;
+                connect(base, &phonemelabeler::ChartPanelBase::verticalContentScrolled,
+                        label, [label]() { label->update(); });
+            }
+
             m_yAxisLabels.append(labelWidget);
         }
     }

src/apps/shared/audio-visualizer/AudioVisualizerContainer.h

@@ -192,7 +192,6 @@ namespace dstools {
         double xToTimeGlobal(qreal globalX) const;
     void installDragEventFilters();
     void removeDragEventFilters();
-    void updateDragControllerPPS();
     void resizeEvent(QResizeEvent *event) override;
     void wheelEvent(QWheelEvent *event) override;
     bool eventFilter(QObject *watched, QEvent *event) override;

src/apps/shared/audio-visualizer/PlayCursorOverlay.cpp

@@ -47,7 +47,7 @@ void PlayCursorOverlay::paintEvent(QPaintEvent *) {
 
     double x = std::clamp(timeToX(m_positionSec), 0.0, static_cast<double>(width()));
 
-    painter.setPen(QPen(dsfw::Theme::instance().palette().pianoRoll.playhead, m_lineWidth));
+    painter.setPen(QPen(dsfw::Theme::instance().palette().pianoRoll.playhead, 2));
     painter.drawLine(QPointF(x, 0), QPointF(x, height()));
 }
 

src/apps/shared/data-sources/SlicerPage.h

@@ -86,7 +86,6 @@ class SlicerPage : public EditorContainerBase, public labeler::IPageActions, pub
     dstools::AppSettings m_settings;
 
     QList<int> m_sidebarExpandedSize;
-    QList<int> m_sidebarCollapsedSize;
 
     virtual void buildLayout();
     virtual void connectSignals();