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;
+}