148 lines
4.2 KiB
C++
148 lines
4.2 KiB
C++
/*
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Strawberry Music Player
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This file was part of Clementine.
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Copyright 2011, Tyler Rhodes <tyler.s.rhodes@gmail.com>
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Copyright 2011-2012, 2014, David Sansome <me@davidsansome.com>
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Copyright 2011, 2014, John Maguire <john.maguire@gmail.com>
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Copyright 2014, Alibek Omarov <a1ba.omarov@gmail.com>
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Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
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Copyright 2014-2015, Mark Furneaux <mark@furneaux.ca>
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Copyright 2015, Arun Narayanankutty <n.arun.lifescience@gmail.com>
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Strawberry is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Strawberry is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef RAINBOWANALYZER_H
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#define RAINBOWANALYZER_H
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#include "analyzerbase.h"
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#include <QObject>
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#include <QWidget>
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#include <QPixmap>
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#include <QPainter>
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#include <QPen>
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#include <QBrush>
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#include <QRect>
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class QWidget;
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class QTimerEvent;
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class QResizeEvent;
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namespace Rainbow {
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class RainbowAnalyzer : public Analyzer::Base {
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Q_OBJECT
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public:
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enum RainbowType {
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Nyancat = 0,
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Dash = 1
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};
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RainbowAnalyzer(const RainbowType &rbtype, QWidget *parent);
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protected:
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void transform(Analyzer::Scope&) override;
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void analyze(QPainter &p, const Analyzer::Scope&, bool new_frame) override;
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void timerEvent(QTimerEvent *e) override;
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void resizeEvent(QResizeEvent *e) override;
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private:
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static const int kHeight[];
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static const int kWidth[];
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static const int kFrameCount[];
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static const int kRainbowHeight[];
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static const int kRainbowOverlap[];
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static const int kSleepingHeight[];
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static const int kHistorySize = 128;
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static const int kRainbowBands = 6;
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static const float kPixelScale;
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static const int kFrameIntervalMs = 150;
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static RainbowType rainbowtype;
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inline QRect SourceRect(RainbowType _rainbowtype) const {
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return QRect(0, kHeight[_rainbowtype] * frame_, kWidth[_rainbowtype], kHeight[_rainbowtype]);
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}
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inline QRect SleepingSourceRect(RainbowType _rainbowtype) const {
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return QRect(0, kHeight[_rainbowtype] * kFrameCount[_rainbowtype], kWidth[_rainbowtype], kSleepingHeight[_rainbowtype]);
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}
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inline QRect DestRect(RainbowType _rainbowtype) const {
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return QRect(width() - kWidth[_rainbowtype], (height() - kHeight[_rainbowtype]) / 2, kWidth[_rainbowtype], kHeight[_rainbowtype]);
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}
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inline QRect SleepingDestRect(RainbowType _rainbowtype) const {
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return QRect(width() - kWidth[_rainbowtype], (height() - kSleepingHeight[_rainbowtype]) / 2, kWidth[_rainbowtype], kSleepingHeight[_rainbowtype]);
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}
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private:
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// "constants" that get initialized in the constructor
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float band_scale_[kRainbowBands];
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QPen colors_[kRainbowBands];
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// Rainbow Nyancat & Dash
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QPixmap cat_dash_[2];
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// For the cat or dash animation
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int timer_id_;
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int frame_;
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// The y positions of each point on the rainbow.
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float history_[kHistorySize * kRainbowBands];
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// A cache of the last frame's rainbow,
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// so it can be used in the next frame.
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QPixmap buffer_[2];
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int current_buffer_;
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// Geometry information that's updated on resize:
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// The width of the widget minus the space for the cat
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int available_rainbow_width_;
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// X spacing between each point in the polyline.
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int px_per_frame_;
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// Amount the buffer_ is shifted to the left (off the edge of the widget)
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// to make the rainbow extend from 0 to available_rainbow_width_.
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int x_offset_;
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QBrush background_brush_;
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};
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class NyanCatAnalyzer : public RainbowAnalyzer {
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Q_OBJECT
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public:
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Q_INVOKABLE explicit NyanCatAnalyzer(QWidget *parent);
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static const char *kName;
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};
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class RainbowDashAnalyzer : public RainbowAnalyzer {
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Q_OBJECT
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public:
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Q_INVOKABLE explicit RainbowDashAnalyzer(QWidget *parent);
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static const char *kName;
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};
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}
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#endif // RAINBOWANALYZER_H
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