kopia lustrzana https://github.com/f4exb/sdrangel
				
				
				
			
		
			
				
	
	
		
			158 wiersze
		
	
	
		
			4.5 KiB
		
	
	
	
		
			C++
		
	
	
			
		
		
	
	
			158 wiersze
		
	
	
		
			4.5 KiB
		
	
	
	
		
			C++
		
	
	
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
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// written by Christian Daniel                                                   //
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//                                                                               //
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// This program 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 as version 3 of the License, or                  //
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//                                                                               //
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// This program 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 V3 for more details.                               //
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//                                                                               //
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// You should have received a copy of the GNU General Public License             //
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// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDE_GLSPECTRUM_H
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#define INCLUDE_GLSPECTRUM_H
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#include <QGLWidget>
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#include <QTimer>
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#include <QMutex>
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#include "dsp/dsptypes.h"
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#include "gui/scaleengine.h"
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#include "dsp/channelmarker.h"
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#include "util/export.h"
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class SDRANGELOVE_API GLSpectrum : public QGLWidget {
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	Q_OBJECT
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public:
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	GLSpectrum(QWidget* parent = NULL);
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	~GLSpectrum();
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	void setCenterFrequency(quint64 frequency);
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	void setSampleRate(qint32 sampleRate);
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	void setReferenceLevel(Real referenceLevel);
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	void setPowerRange(Real powerRange);
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	void setDecay(int decay);
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	void setDisplayWaterfall(bool display);
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	void setInvertedWaterfall(bool inv);
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	void setDisplayMaxHold(bool display);
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	void setDisplayHistogram(bool display);
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	void setDisplayGrid(bool display);
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	void addChannelMarker(ChannelMarker* channelMarker);
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	void removeChannelMarker(ChannelMarker* channelMarker);
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	void newSpectrum(const std::vector<Real>& spectrum, int fftSize);
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private:
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	struct ChannelMarkerState {
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		ChannelMarker* m_channelMarker;
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		QRectF m_glRect;
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		QRect m_rect;
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		ChannelMarkerState(ChannelMarker* channelMarker) :
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			m_channelMarker(channelMarker),
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			m_glRect()
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		{ }
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	};
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	QList<ChannelMarkerState*> m_channelMarkerStates;
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	enum CursorState {
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		CSNormal,
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		CSSplitter,
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		CSSplitterMoving,
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		CSChannel,
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		CSChannelMoving
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	};
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	CursorState m_cursorState;
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	int m_cursorChannel;
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	QTimer m_timer;
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	QMutex m_mutex;
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	bool m_mouseInside;
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	bool m_changesPending;
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	qint64 m_centerFrequency;
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	Real m_referenceLevel;
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	Real m_powerRange;
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	int m_decay;
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	quint32 m_sampleRate;
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	int m_fftSize;
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	bool m_displayGrid;
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	bool m_invertedWaterfall;
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	std::vector<Real> m_maxHold;
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	bool m_displayMaxHold;
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	Real m_waterfallShare;
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	QPixmap m_leftMarginPixmap;
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	bool m_leftMarginTextureAllocated;
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	GLuint m_leftMarginTexture;
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	QPixmap m_frequencyPixmap;
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	bool m_frequencyTextureAllocated;
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	GLuint m_frequencyTexture;
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	ScaleEngine m_timeScale;
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	ScaleEngine m_powerScale;
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	ScaleEngine m_frequencyScale;
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	QRectF m_glLeftScaleRect;
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	QRectF m_glFrequencyScaleRect;
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	QRect m_frequencyScaleRect;
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	QRgb m_waterfallPalette[240];
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	QImage* m_waterfallBuffer;
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	int m_waterfallBufferPos;
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	bool m_waterfallTextureAllocated;
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	GLuint m_waterfallTexture;
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	int m_waterfallTextureHeight;
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	int m_waterfallTexturePos;
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	QRectF m_glWaterfallRect;
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	bool m_displayWaterfall;
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	QRgb m_histogramPalette[240];
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	QImage* m_histogramBuffer;
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	quint8* m_histogram;
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	quint8* m_histogramHoldoff;
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	bool m_histogramTextureAllocated;
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	GLuint m_histogramTexture;
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	int m_histogramHoldoffBase;
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	int m_histogramHoldoffCount;
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	int m_histogramLateHoldoff;
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	QRectF m_glHistogramRect;
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	bool m_displayHistogram;
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	bool m_displayChanged;
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	void updateWaterfall(const std::vector<Real>& spectrum);
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	void updateHistogram(const std::vector<Real>& spectrum);
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	void initializeGL();
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	void resizeGL(int width, int height);
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	void paintGL();
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	void stopDrag();
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	void applyChanges();
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	void mouseMoveEvent(QMouseEvent* event);
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	void mousePressEvent(QMouseEvent* event);
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	void mouseReleaseEvent(QMouseEvent* event);
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	void enterEvent(QEvent* event);
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	void leaveEvent(QEvent* event);
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private slots:
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	void tick();
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	void channelMarkerChanged();
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	void channelMarkerDestroyed(QObject* object);
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};
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#endif // INCLUDE_GLSPECTRUM_H
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