Traverso/cvs/traverso/src/traverso/widgets/SpectralMeterWidget.h

/*
    Copyright (C) 2008 Remon Sijrier
    Copyright (C) 2006 Nicola Doebelin
 
    This file is part of Traverso
 
    Traverso 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 2 of the License, or
    (at your option) any later version.
 
    This program 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 this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
 
*/

#ifndef SPECTRALMETERWIDGET_H
#define SPECTRALMETERWIDGET_H

#include "MeterWidget.h"

#include <QVector>
#include "ui_SpectralMeterConfigWidget.h"
#include <QDialog>

class Sheet;
class Project;
class QRect;
class QPixmap;
class Command;
class SpectralMeterView;


class SpectralMeterConfigWidget : public QDialog, private Ui::SpectralMeterConfigWidget
{
        Q_OBJECT

public:
        SpectralMeterConfigWidget(QWidget* parent = 0);

private:
        void save_configuration();
        void load_configuration();
        
private slots:
        void on_buttonClose_clicked();
        void on_buttonApply_clicked();
        void advancedButton_toggled(bool);

signals:
        void configChanged();

};

class SpectralMeterWidget : public MeterWidget
{
public:
        SpectralMeterWidget(QWidget* parent);

private:
        SpectralMeterView* get_item();
};


class SpectralMeterView : public MeterView
{
        Q_OBJECT
        
        Q_CLASSINFO("edit_properties", tr("Settings..."))
        Q_CLASSINFO("set_mode", tr("Toggle avarage curve"))
        Q_CLASSINFO("reset", tr("Reset average curve"))
        Q_CLASSINFO("export_avarage_curve", tr("Export avarage curve"))
        Q_CLASSINFO("screen_capture", tr("Capture Screen"))
        

public:
        SpectralMeterView(SpectralMeterWidget* widget);
        
        void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
        virtual void resize();

private:
        QVector<float>  specl;
        QVector<float>  specr;
        QVector<float>  m_spectrum;
        QVector<float>  m_history;
        QVector<float>  m_bands;
        QVector<float>  m_freq_labels;
        QVector<float>  m_avg_db;
        QVector<float>  m_map_idx2xpos;
        QVector<float>  m_map_idx2freq;
        QRect           m_rect;
        SpectralMeterConfigWidget *m_config;
        QPixmap         bgPixmap;
        uint            num_bands;
        uint            sample_rate;
        float           upper_freq;
        float           lower_freq;
        float           upper_db;
        float           lower_db;
        int             margin_l;
        int             margin_r;
        int             margin_t;
        int             margin_b;
        uint            sample_weight;

        uint            fft_size;
        float           xfactor;
        float           upper_freq_log;
        float           lower_freq_log;
        float           freq_step;
        int             bar_offset;
        bool            show_average;
        bool            update_average;

        void            reduce_bands();
        void            update_layout();
        void            update_freq_map();
        float           db2ypos(float);
        float           freq2xpos(float);
        void            update_background();
        float           freq2db(float, float);
        QString         get_xmgr_string();

private slots:
        void            update_data();

public slots:
        void            load_configuration();
        void            set_sheet(Sheet* sheet);

        Command*        edit_properties();
        Command*        set_mode();
        Command*        reset();
        Command*        export_avarage_curve();
        Command*        screen_capture();
};

#endif

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