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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 2006-2007 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 _IMAGE_LAYER_H_
#define _IMAGE_LAYER_H_
#include "Layer.h"
#include "data/model/ImageModel.h"
#include <QObject>
#include <QColor>
#include <QImage>
#include <QMutex>
#include <map>
class View;
class QPainter;
class FileSource;
class ImageLayer : public Layer
{
Q_OBJECT
public:
ImageLayer();
virtual ~ImageLayer();
virtual void paint(View *v, QPainter &paint, QRect rect) const;
virtual QString getFeatureDescription(View *v, QPoint &) const;
virtual bool snapToFeatureFrame(View *v, sv_frame_t &frame,
int &resolution,
SnapType snap) const;
virtual void drawStart(View *v, QMouseEvent *);
virtual void drawDrag(View *v, QMouseEvent *);
virtual void drawEnd(View *v, QMouseEvent *);
virtual void editStart(View *v, QMouseEvent *);
virtual void editDrag(View *v, QMouseEvent *);
virtual void editEnd(View *v, QMouseEvent *);
virtual void moveSelection(Selection s, sv_frame_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, sv_frame_t frameOffset,
bool interactive);
virtual bool editOpen(View *, QMouseEvent *); // on double-click
virtual const Model *getModel() const { return m_model; }
void setModel(ImageModel *model);
virtual PropertyList getProperties() const;
virtual QString getPropertyLabel(const PropertyName &) const;
virtual PropertyType getPropertyType(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);
virtual ColourSignificance getLayerColourSignificance() const {
return ColourAbsent;
}
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(double &min, double &max,
bool &logarithmic, QString &unit) const;
virtual void toXml(QTextStream &stream, QString indent = "",
QString extraAttributes = "") const;
virtual int getVerticalScaleWidth(View *, bool, QPainter &) const { return 0; }
virtual void setLayerDormant(const View *v, bool dormant);
void setProperties(const QXmlAttributes &attributes);
virtual bool addImage(sv_frame_t frame, QString url); // using a command
protected slots:
void checkAddSources();
void fileSourceReady();
protected:
ImageModel::PointList getLocalPoints(View *v, int x, int y) const;
bool getImageOriginalSize(QString name, QSize &size) const;
QImage getImage(View *v, QString name, QSize maxSize) const;
void drawImage(View *v, QPainter &paint, const ImageModel::Point &p,
int x, int nx) const;
//!!! how to reap no-longer-used images?
typedef std::map<QString, QImage> ImageMap;
typedef std::map<const View *, ImageMap> ViewImageMap;
typedef std::map<QString, FileSource *> FileSourceMap;
static ImageMap m_images;
static QMutex m_imageMapMutex;
mutable ViewImageMap m_scaled;
mutable FileSourceMap m_fileSources;
QString getLocalFilename(QString img) const;
void checkAddSource(QString img) const;
ImageModel *m_model;
bool m_editing;
QPoint m_editOrigin;
ImageModel::Point m_originalPoint;
ImageModel::Point m_editingPoint;
ImageModel::EditCommand *m_editingCommand;
void finish(ImageModel::EditCommand *command) {
Command *c = command->finish();
if (c) CommandHistory::getInstance()->addCommand(c, false);
}
};
#endif
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