From f51921491cfc2bf3b196bb36ea4e58fd828705d1 Mon Sep 17 00:00:00 2001
From: Mike Walters <mike@flomp.net>
Date: Sat, 16 Apr 2016 20:26:44 +0100
Subject: [PATCH] plotview: Context menu for adding plots

---
 plotview.cpp | 22 ++++++++++++++++++++++
 plotview.h   |  1 +
 2 files changed, 23 insertions(+)

diff --git a/plotview.cpp b/plotview.cpp
index 1d990f8..283f805 100644
--- a/plotview.cpp
+++ b/plotview.cpp
@@ -20,6 +20,7 @@
 #include "plotview.h"
 #include <QApplication>
 #include <QDebug>
+#include <QMenu>
 #include <QPainter>
 #include <QScrollBar>
 #include "plots.h"
@@ -48,6 +49,27 @@ void PlotView::addPlot(Plot *plot)
     connect(plot, &Plot::repaint, this, &PlotView::repaint);
 }
 
+void PlotView::contextMenuEvent(QContextMenuEvent * event)
+{
+    QMenu menu;
+    // TODO: get the selected plot
+    auto src = plots[0]->output();
+    auto compatiblePlots = as_range(Plots::plots.equal_range(src->sampleType()));
+    for (auto p : compatiblePlots) {
+        auto action = new QAction("Add plot", &menu);
+        auto plotCreator = p.second;
+        connect(
+            action, &QAction::triggered,
+            this, [=]() {
+                addPlot(plotCreator(src));
+            }
+        );
+        menu.addAction(action);
+    }
+    if (menu.exec(event->globalPos()))
+        updateView(false);
+}
+
 void PlotView::cursorsMoved()
 {
     selectedSamples = {
diff --git a/plotview.h b/plotview.h
index 8a2d908..9b3bc62 100644
--- a/plotview.h
+++ b/plotview.h
@@ -52,6 +52,7 @@ public slots:
     void setPowerMax(int power);
 
 protected:
+    void contextMenuEvent(QContextMenuEvent * event) override;
     bool eventFilter(QObject * obj, QEvent *event) override;
     void paintEvent(QPaintEvent *event);
     void resizeEvent(QResizeEvent * event);