Add boom and rainbow analyzers

src/analyzer/boomanalyzer.h

@@ -0,0 +1,75 @@
+/*
+   Strawberry Music Player
+   This file was part of Clementine.
+   Copyright 2004, Max Howell <max.howell@methylblue.com>
+   Copyright 2009-2010, David Sansome <davidsansome@gmail.com>
+   Copyright 2010, 2014, John Maguire <john.maguire@gmail.com>
+   Copyright 2014-2015, Mark Furneaux <mark@furneaux.ca>
+   Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
+
+   Strawberry 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.
+
+   Strawberry 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 Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef BOOMANALYZER_H
+#define BOOMANALYZER_H
+
+#include "analyzerbase.h"
+
+#include <QObject>
+#include <QWidget>
+#include <QPixmap>
+#include <QPainter>
+#include <QColor>
+
+class QResizeEvent;
+
+class BoomAnalyzer : public Analyzer::Base {
+  Q_OBJECT
+
+ public:
+  Q_INVOKABLE BoomAnalyzer(QWidget*);
+
+  static const char* kName;
+
+  virtual void transform(Analyzer::Scope& s);
+  virtual void analyze(QPainter& p, const Analyzer::Scope&, bool new_frame);
+
+ public slots:
+  void changeK_barHeight(int);
+  void changeF_peakSpeed(int);
+
+ protected:
+  void resizeEvent(QResizeEvent* e);
+
+  static const uint kColumnWidth;
+  static const uint kMaxBandCount;
+  static const uint kMinBandCount;
+
+  uint bands_;
+  Analyzer::Scope scope_;
+  QColor fg_;
+
+  double K_barHeight_, F_peakSpeed_, F_;
+
+  std::vector<float> bar_height_;
+  std::vector<float> peak_height_;
+  std::vector<float> peak_speed_;
+
+  QPixmap barPixmap_;
+  QPixmap canvas_;
+
+};
+
+#endif  // BOOMANALYZER_H