view layer/RegionLayer.h @ 454:e2a40fdadd8c

Various fixes: * Fix handling of HTTP redirects (avoiding crashes... I hope) * Fix failure to delete FFT models when a feature extraction model transformer was abandoned (also a cause of crashes in the past) * Fix deadlock when said transform was abandoned before its source model was ready because the session was being cleared (and so the source model would never be ready)
author Chris Cannam
date Fri, 28 Nov 2008 13:36:13 +0000
parents ac349afdb23f
children 5930f2b0b1d2
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006-2008 Chris Cannam and QMUL.
    
    This program 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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _REGION_LAYER_H_
#define _REGION_LAYER_H_

#include "SingleColourLayer.h"
#include "data/model/RegionModel.h"

#include <QObject>
#include <QColor>

#include <map>

class View;
class QPainter;

class RegionLayer : public SingleColourLayer
{
    Q_OBJECT

public:
    RegionLayer();

    virtual void paint(View *v, QPainter &paint, QRect rect) const;

    virtual QString getFeatureDescription(View *v, QPoint &) const;

    virtual bool snapToFeatureFrame(View *v, int &frame,
				    size_t &resolution,
				    SnapType snap) const;

    virtual void drawStart(View *v, QMouseEvent *);
    virtual void drawDrag(View *v, QMouseEvent *);
    virtual void drawEnd(View *v, QMouseEvent *);

    virtual void eraseStart(View *v, QMouseEvent *);
    virtual void eraseDrag(View *v, QMouseEvent *);
    virtual void eraseEnd(View *v, QMouseEvent *);

    virtual void editStart(View *v, QMouseEvent *);
    virtual void editDrag(View *v, QMouseEvent *);
    virtual void editEnd(View *v, QMouseEvent *);

    virtual bool editOpen(View *v, QMouseEvent *);

    virtual void moveSelection(Selection s, size_t newStartFrame);
    virtual void resizeSelection(Selection s, Selection newSize);
    virtual void deleteSelection(Selection s);

    virtual void copy(View *v, Selection s, Clipboard &to);
    virtual bool paste(View *v, const Clipboard &from, int frameOffset,
                       bool interactive);

    virtual const Model *getModel() const { return m_model; }
    void setModel(RegionModel *model);

    virtual PropertyList getProperties() const;
    virtual QString getPropertyLabel(const PropertyName &) const;
    virtual PropertyType getPropertyType(const PropertyName &) const;
    virtual QString getPropertyGroupName(const PropertyName &) const;
    virtual int getPropertyRangeAndValue(const PropertyName &,
                                         int *min, int *max, int *deflt) const;
    virtual QString getPropertyValueLabel(const PropertyName &,
					  int value) const;
    virtual void setProperty(const PropertyName &, int value);

    void setFillColourMap(int);
    int getFillColourMap() const { return m_colourMap; }

    enum VerticalScale {
        AutoAlignScale,
        EqualSpaced,
        LinearScale,
        LogScale,
    };

    void setVerticalScale(VerticalScale scale);
    VerticalScale getVerticalScale() const { return m_verticalScale; }

    enum PlotStyle {
	PlotLines,
	PlotSegmentation
    };

    void setPlotStyle(PlotStyle style);
    PlotStyle getPlotStyle() const { return m_plotStyle; }

    virtual bool isLayerScrollable(const View *v) const;

    virtual bool isLayerEditable() const { return true; }

    virtual int getCompletion(View *) const { return m_model->getCompletion(); }

    virtual bool getValueExtents(float &min, float &max,
                                 bool &log, QString &unit) const;

    virtual bool getDisplayExtents(float &min, float &max) const;

    virtual void toXml(QTextStream &stream, QString indent = "",
                       QString extraAttributes = "") const;

    void setProperties(const QXmlAttributes &attributes);

protected slots:
    void recalcSpacing();

protected:
    void getScaleExtents(View *, float &min, float &max, bool &log) const;
    int getYForValue(View *v, float value) const;
    float getValueForY(View *v, int y) const;
    QColor getColourForValue(View *v, float value) const;

    virtual int getDefaultColourHint(bool dark, bool &impose);

    RegionModel::PointList getLocalPoints(View *v, int) const;

    RegionModel *m_model;
    bool m_editing;
    RegionModel::Point m_originalPoint;
    RegionModel::Point m_editingPoint;
    RegionModel::EditCommand *m_editingCommand;
    VerticalScale m_verticalScale;
    int m_colourMap;
    PlotStyle m_plotStyle;

    typedef std::map<float, int> SpacingMap;
    SpacingMap m_spacingMap;

    void finish(RegionModel::EditCommand *command) {
        Command *c = command->finish();
        if (c) CommandHistory::getInstance()->addCommand(c, false);
    }
};

#endif