diff --git a/src/barchart.cpp b/src/barchart.cpp
new file mode 100644
--- /dev/null
+++ b/src/barchart.cpp
@@ -0,0 +1,63 @@
+/*
+  Copyright © 2017 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 .
+*/
+
+#include 
+
+#include "barchart.h"
+
+BarChart::BarChart(ChannelManager* channelMan)
+{
+    _channelMan = channelMan;
+}
+
+void BarChart::resample()
+{
+    setSamples(chartData());
+}
+
+QVector BarChart::chartData() const
+{
+    unsigned numChannels = _channelMan->numOfChannels();
+    unsigned numOfSamples = _channelMan->numOfSamples();
+    QVector data(numChannels);
+    for (unsigned i = 0; i < numChannels; i++)
+    {
+        data[i] = _channelMan->channelBuffer(i)->sample(numOfSamples-1);
+    }
+    return data;
+}
+
+QwtColumnSymbol* BarChart::specialSymbol(int sampleIndex, const QPointF& sample) const
+{
+    unsigned numChannels = _channelMan->numOfChannels();
+    if (sampleIndex < 0 || sampleIndex > (int) numChannels)
+    {
+        return NULL;
+    }
+
+    auto info = _channelMan->infoModel();
+    auto color = info->color(sampleIndex);
+
+    QwtColumnSymbol* symbol = new QwtColumnSymbol(QwtColumnSymbol::Box);
+    symbol->setLineWidth(1);
+    symbol->setFrameStyle(QwtColumnSymbol::Plain);
+    symbol->setPalette(QPalette(color));
+
+    return symbol;
+}