Fix sidebar slider not resizing (#2530)

src/widgets/capture/capturewidget.cpp

@@ -1225,6 +1225,7 @@ void CaptureWidget::handleToolSignal(CaptureTool::Request r)
  */
 void CaptureWidget::onToolSizeChanged(int t)
 {
+    m_context.toolSize = t;
     CaptureTool* tool = activeButtonTool();
     if (tool && tool->showMousePreview()) {
         setCursor(Qt::BlankCursor);
@@ -1247,6 +1248,7 @@ void CaptureWidget::onToolSizeChanged(int t)
         drawToolsData();
         updateTool(toolItem);
     }
+
     // Force a repaint to prevent artifacting
     this->repaint();
 }

src/widgets/panel/sidepanelwidget.cpp

@@ -25,7 +25,7 @@ SidePanelWidget::SidePanelWidget(QPixmap* p, QWidget* parent)
   , m_pixmap(p)
 {
 
-    if (parent) {
+    if (parent != nullptr) {
         parent->installEventFilter(this);
     }
 
@@ -101,11 +101,11 @@ SidePanelWidget::SidePanelWidget(QPixmap* p, QWidget* parent)
             &SidePanelWidget::colorChanged);
 }
 
-void SidePanelWidget::onColorChanged(const QColor& c)
+void SidePanelWidget::onColorChanged(const QColor& color)
 {
-    m_color = c;
-    updateColorNoWheel(c);
-    m_colorWheel->setColor(c);
+    m_color = color;
+    updateColorNoWheel(color);
+    m_colorWheel->setColor(color);
 }
 
 void SidePanelWidget::onToolSizeChanged(int t)

src/widgets/panel/sidepanelwidget.h

@@ -28,7 +28,7 @@ public:
 
 signals:
     void colorChanged(const QColor& color);
-    void toolSizeChanged(int tootl);
+    void toolSizeChanged(int size);
     void togglePanel();
 
 public slots: