cabana/chart: add contex menu (#29957)

tools/cabana/chart/chart.cc

@@ -10,7 +10,6 @@
 #include <QGraphicsDropShadowEffect>
 #include <QGraphicsItemGroup>
 #include <QGraphicsOpacityEffect>
-#include <QMenu>
 #include <QMimeData>
 #include <QOpenGLWidget>
 #include <QPropertyAnimation>
@@ -66,8 +65,8 @@ void ChartView::createToolButtons() {
   close_btn_proxy->setWidget(remove_btn);
   close_btn_proxy->setZValue(chart()->zValue() + 11);
 
+  menu = new QMenu(this);
   // series types
-  QMenu *menu = new QMenu(this);
   auto change_series_group = new QActionGroup(menu);
   change_series_group->setExclusive(true);
   QStringList types{tr("Line"), tr("Step Line"), tr("Scatter")};
@@ -90,7 +89,9 @@ void ChartView::createToolButtons() {
   manage_btn_proxy->setWidget(manage_btn);
   manage_btn_proxy->setZValue(chart()->zValue() + 11);
 
-  QObject::connect(remove_btn, &QToolButton::clicked, [this]() { charts_widget->removeChart(this); });
+  close_act = new QAction(tr("Close"), this);
+  QObject::connect(close_act, &QAction::triggered, [this] () { charts_widget->removeChart(this); });
+  QObject::connect(remove_btn, &QToolButton::clicked, close_act, &QAction::triggered);
   QObject::connect(change_series_group, &QActionGroup::triggered, [this](QAction *action) {
     setSeriesType((SeriesType)action->data().toInt());
   });
@@ -452,6 +453,17 @@ static QPixmap getDropPixmap(const QPixmap &src) {
   return px;
 }
 
+void ChartView::contextMenuEvent(QContextMenuEvent *event) { 
+  QMenu context_menu(this);
+  context_menu.addActions(menu->actions());
+  context_menu.addSeparator();
+  context_menu.addAction(charts_widget->undo_zoom_action);
+  context_menu.addAction(charts_widget->redo_zoom_action);
+  context_menu.addSeparator();
+  context_menu.addAction(close_act);
+  context_menu.exec(event->globalPos());
+}
+
 void ChartView::mousePressEvent(QMouseEvent *event) {
   if (event->button() == Qt::LeftButton && move_icon->sceneBoundingRect().contains(event->pos())) {
     QMimeData *mimeData = new QMimeData;

tools/cabana/chart/chart.h

@@ -3,6 +3,7 @@
 #include <tuple>
 #include <utility>
 
+#include <QMenu>
 #include <QGraphicsPixmapItem>
 #include <QGraphicsProxyWidget>
 #include <QtCharts/QChartView>
@@ -65,6 +66,7 @@ private slots:
 private:
   void createToolButtons();
   void addSeries(QXYSeries *series);
+  void contextMenuEvent(QContextMenuEvent *event) override;
   void mousePressEvent(QMouseEvent *event) override;
   void mouseReleaseEvent(QMouseEvent *event) override;
   void mouseMoveEvent(QMouseEvent *ev) override;
@@ -98,7 +100,9 @@ private:
   int align_to = 0;
   QValueAxis *axis_x;
   QValueAxis *axis_y;
+  QMenu *menu;
   QAction *split_chart_act;
+  QAction *close_act;
   QGraphicsPixmapItem *move_icon;
   QGraphicsProxyWidget *close_btn_proxy;
   QGraphicsProxyWidget *manage_btn_proxy;