Chris@303: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@303: 
Chris@303: /*
Chris@303:     Sonic Visualiser
Chris@303:     An audio file viewer and annotation editor.
Chris@303:     Centre for Digital Music, Queen Mary, University of London.
Chris@303:     This file copyright 2006-2007 Chris Cannam and QMUL.
Chris@303:     
Chris@303:     This program is free software; you can redistribute it and/or
Chris@303:     modify it under the terms of the GNU General Public License as
Chris@303:     published by the Free Software Foundation; either version 2 of the
Chris@303:     License, or (at your option) any later version.  See the file
Chris@303:     COPYING included with this distribution for more information.
Chris@303: */
Chris@303: 
Chris@303: #ifndef _IMAGE_LAYER_H_
Chris@303: #define _IMAGE_LAYER_H_
Chris@303: 
Chris@303: #include "Layer.h"
Chris@303: #include "data/model/ImageModel.h"
Chris@303: 
Chris@303: #include <QObject>
Chris@303: #include <QColor>
Chris@303: #include <QImage>
Chris@305: #include <QMutex>
Chris@303: 
Chris@303: #include <map>
Chris@303: 
Chris@303: class View;
Chris@303: class QPainter;
Chris@318: class FileSource;
Chris@303: 
Chris@303: class ImageLayer : public Layer
Chris@303: {
Chris@303:     Q_OBJECT
Chris@303: 
Chris@303: public:
Chris@303:     ImageLayer();
Chris@305:     virtual ~ImageLayer();
Chris@303: 
Chris@303:     virtual void paint(View *v, QPainter &paint, QRect rect) const;
Chris@303: 
Chris@303:     virtual QString getFeatureDescription(View *v, QPoint &) const;
Chris@303: 
Chris@303:     virtual bool snapToFeatureFrame(View *v, int &frame,
Chris@303: 				    size_t &resolution,
Chris@303: 				    SnapType snap) const;
Chris@303: 
Chris@303:     virtual void drawStart(View *v, QMouseEvent *);
Chris@303:     virtual void drawDrag(View *v, QMouseEvent *);
Chris@303:     virtual void drawEnd(View *v, QMouseEvent *);
Chris@303: 
Chris@303:     virtual void editStart(View *v, QMouseEvent *);
Chris@303:     virtual void editDrag(View *v, QMouseEvent *);
Chris@303:     virtual void editEnd(View *v, QMouseEvent *);
Chris@303: 
Chris@303:     virtual void moveSelection(Selection s, size_t newStartFrame);
Chris@303:     virtual void resizeSelection(Selection s, Selection newSize);
Chris@303:     virtual void deleteSelection(Selection s);
Chris@303: 
Chris@359:     virtual void copy(View *v, Selection s, Clipboard &to);
Chris@359:     virtual bool paste(View *v, const Clipboard &from, int frameOffset,
Chris@303:                        bool interactive);
Chris@303: 
Chris@303:     virtual bool editOpen(View *, QMouseEvent *); // on double-click
Chris@303: 
Chris@303:     virtual const Model *getModel() const { return m_model; }
Chris@303:     void setModel(ImageModel *model);
Chris@303: 
Chris@303:     virtual PropertyList getProperties() const;
Chris@303:     virtual QString getPropertyLabel(const PropertyName &) const;
Chris@303:     virtual PropertyType getPropertyType(const PropertyName &) const;
Chris@303:     virtual int getPropertyRangeAndValue(const PropertyName &,
Chris@303:                                          int *min, int *max, int *deflt) const;
Chris@303:     virtual QString getPropertyValueLabel(const PropertyName &,
Chris@303: 					  int value) const;
Chris@303:     virtual void setProperty(const PropertyName &, int value);
Chris@303: 
Chris@303:     virtual ColourSignificance getLayerColourSignificance() const {
Chris@303:         return ColourAbsent;
Chris@303:     }
Chris@303: 
Chris@303:     virtual bool isLayerScrollable(const View *v) const;
Chris@303: 
Chris@303:     virtual bool isLayerEditable() const { return true; }
Chris@303: 
Chris@303:     virtual int getCompletion(View *) const { return m_model->getCompletion(); }
Chris@303: 
Chris@303:     virtual bool getValueExtents(float &min, float &max,
Chris@303:                                  bool &logarithmic, QString &unit) const;
Chris@303: 
Chris@316:     virtual void toXml(QTextStream &stream, QString indent = "",
Chris@316:                        QString extraAttributes = "") const;
Chris@303: 
Chris@303:     virtual void setLayerDormant(const View *v, bool dormant);
Chris@303: 
Chris@303:     void setProperties(const QXmlAttributes &attributes);
Chris@303: 
Chris@312:     virtual bool addImage(long frame, QString url); // using a command
Chris@312: 
Chris@305: protected slots:
Chris@464:     void checkAddSources();
Chris@464:     void fileSourceReady();
Chris@305: 
Chris@303: protected:
Chris@303:     ImageModel::PointList getLocalPoints(View *v, int x, int y) const;
Chris@303: 
Chris@304:     bool getImageOriginalSize(QString name, QSize &size) const;
Chris@303:     QImage getImage(View *v, QString name, QSize maxSize) const;
Chris@303: 
Chris@304:     void drawImage(View *v, QPainter &paint, const ImageModel::Point &p,
Chris@304:                    int x, int nx) const;
Chris@304: 
Chris@303:     //!!! how to reap no-longer-used images?
Chris@303: 
Chris@303:     typedef std::map<QString, QImage> ImageMap;
Chris@303:     typedef std::map<const View *, ImageMap> ViewImageMap;
Chris@318:     typedef std::map<QString, FileSource *> FileSourceMap;
Chris@304: 
Chris@303:     static ImageMap m_images;
Chris@305:     static QMutex m_imageMapMutex;
Chris@303:     mutable ViewImageMap m_scaled;
Chris@464:     mutable FileSourceMap m_fileSources;
Chris@305: 
Chris@305:     QString getLocalFilename(QString img) const;
Chris@464:     void checkAddSource(QString img) const;
Chris@303: 
Chris@303:     ImageModel *m_model;
Chris@303:     bool m_editing;
Chris@303:     QPoint m_editOrigin;
Chris@303:     ImageModel::Point m_originalPoint;
Chris@303:     ImageModel::Point m_editingPoint;
Chris@303:     ImageModel::EditCommand *m_editingCommand;
Chris@376: 
Chris@376:     void finish(ImageModel::EditCommand *command) {
Chris@376:         Command *c = command->finish();
Chris@376:         if (c) CommandHistory::getInstance()->addCommand(c, false);
Chris@376:     }
Chris@303: };
Chris@303: 
Chris@303: #endif
Chris@303: