diff --git a/plotsnapshotoverlay.cpp b/plotsnapshotoverlay.cpp
new file mode 100644
--- /dev/null
+++ b/plotsnapshotoverlay.cpp
@@ -0,0 +1,65 @@
+/*
+  Copyright © 2015 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/>.
+*/
+
+#include <algorithm>
+#include <QPen>
+
+#include "plotsnapshotoverlay.h"
+
+#define LINE_WIDTH (10)
+#define ANIM_LENGTH (500) // milliseconds
+#define UPDATE_PERIOD (20) // milliseconds
+
+PlotSnapshotOverlay::PlotSnapshotOverlay(QWidget* widget, QColor color) :
+    QwtWidgetOverlay(widget)
+{
+    _color = color;
+    animTimer.setSingleShot(true);
+    animTimer.setInterval(ANIM_LENGTH);
+    updateTimer.setSingleShot(false);
+    updateTimer.setInterval(UPDATE_PERIOD);
+
+    connect(&updateTimer, &QTimer::timeout, [this](){this->updateOverlay();});
+    connect(&animTimer, &QTimer::timeout, &updateTimer, &QTimer::stop);
+    connect(&animTimer, &QTimer::timeout, this, &PlotSnapshotOverlay::done);
+
+    animTimer.start();
+    updateTimer.start();
+}
+
+void PlotSnapshotOverlay::drawOverlay(QPainter* painter) const
+{
+        if (!animTimer.isActive()) return;
+    QColor lineColor = _color;
+
+    double fadingRatio = ((double) animTimer.remainingTime()) / ANIM_LENGTH;
+    lineColor.setAlpha(std::min(255, (int) (255*fadingRatio)));
+
+    QPen pen(lineColor);
+    pen.setWidth(LINE_WIDTH);
+    pen.setJoinStyle(Qt::MiterJoin);
+
+    int width = painter->device()->width();
+    int height = painter->device()->height();
+
+    painter->save();
+    painter->setPen(pen);
+    painter->drawRect(LINE_WIDTH/2, LINE_WIDTH/2, width-LINE_WIDTH, height-LINE_WIDTH);
+    painter->restore();
+}