Clementine-audio-player-Mac.../src/analyzers/nyancatanalyzer.h

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/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef NYANCATANALYZER_H
#define NYANCATANALYZER_H
#include "analyzerbase.h"
#include <QDateTime>
class NyanCatAnalyzer : public Analyzer::Base {
Q_OBJECT
public:
Q_INVOKABLE NyanCatAnalyzer(QWidget* parent);
static const char* kName;
protected:
void transform(Scope&);
void analyze(QPainter& p, const Analyzer::Scope&, bool new_frame);
void timerEvent(QTimerEvent* e);
void resizeEvent(QResizeEvent* e);
private:
static const int kCatHeight = 21;
static const int kCatWidth = 34;
static const int kCatFrameCount = 5;
static const int kRainbowOverlap = 13;
static const int kHistorySize = 128;
static const int kRainbowBands = 6;
2011-06-23 14:34:30 +02:00
static const float kPixelScale;
static const int kFrameIntervalMs = 150;
private:
inline QRect CatSourceRect() const {
return QRect(0, kCatHeight * frame_, kCatWidth, kCatHeight);
}
private:
// "constants" that get initialised in the constructor
float band_scale_[kRainbowBands];
QPen colors_[kRainbowBands];
// Nyan cat!
QPixmap cat_;
// For the nyan cat animation
int timer_id_;
int frame_;
// The y positions of each point on the rainbow.
float history_[kHistorySize * kRainbowBands];
// A cache of the last frame's rainbow, so it can be used in the next frame.
QPixmap buffer_;
QBrush background_brush_;
};
#endif // NYANCATANALYZER_H