diff --git a/src/plotmanager.h b/src/plotmanager.h
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+/*
+  Copyright © 2016 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef PLOTMANAGER_H
+#define PLOTMANAGER_H
+
+#include <QObject>
+#include <QWidget>
+#include <QScrollArea>
+#include <QVBoxLayout>
+#include <QList>
+
+#include <qwt_plot_curve.h>
+#include "plot.h"
+#include "framebufferseries.h"
+
+class PlotManager : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit PlotManager(QWidget* plotArea, QObject *parent = 0);
+    ~PlotManager();
+    /// Add a new curve with title and buffer. A color is
+    /// automatically chosen for curve.
+    void addCurve(QString title, FrameBuffer* buffer);
+    /// Alternative of `addCurve` for static curve data (snapshots).
+    void addCurve(QString title, QVector<QPointF> data);
+    /// Set the displayed title for a curve
+    void setTitle(unsigned index, QString title);
+    /// Removes curves from the end
+    void removeCurves(unsigned number);
+    /// Returns current number of curves known by plot manager
+    unsigned numOfCurves();
+    /// Returns the list of actions to be inserted into the `View` menu
+    QList<QAction*> menuActions();
+
+public slots:
+    /// Enable/Disable multiple plot display
+    void setMulti(bool enabled);
+    /// Update all plot widgets
+    void replot();
+    /// Enable display of a "DEMO" label on each plot
+    void showDemoIndicator(bool show = true);
+    /// Set the Y axis
+    void setAxis(bool autoScaled, double yMin = 0, double yMax = 1);
+    /// Display an animation for snapshot
+    void flashSnapshotOverlay();
+
+private:
+    bool isMulti;
+    QWidget* _plotArea;
+    QVBoxLayout* layout; ///< layout of the `plotArea`
+    QScrollArea* scrollArea;
+    QList<QwtPlotCurve*> curves;
+    QList<Plot*> plotWidgets;
+    bool isDemoShown;
+    bool _autoScaled;
+    double _yMin;
+    double _yMax;
+
+    // menu actions
+    QAction showGridAction;
+    QAction showMinorGridAction;
+    QAction unzoomAction;
+    QAction darkBackgroundAction;
+    QAction showLegendAction;
+    QAction showMultiAction;
+
+    void setupLayout(bool multiPlot);
+    /// Inserts a new plot widget to the current layout.
+    Plot* addPlotWidget();
+    /// Returns the plot widget that given curve is attached to
+    Plot* plotWidget(unsigned curveIndex);
+    /// Common part of overloaded `addCurve` functions
+    void _addCurve(QwtPlotCurve* curve);
+
+private slots:
+    void showGrid(bool show = true);
+    void showMinorGrid(bool show = true);
+    void showLegend(bool show = true);
+    void unzoom();
+    void darkBackground(bool enabled = true);
+};
+
+#endif // PLOTMANAGER_H