Chris@58: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@59:     Sonic Visualiser
Chris@59:     An audio file viewer and annotation editor.
Chris@59:     Centre for Digital Music, Queen Mary, University of London.
Chris@59:     This file copyright 2006 Chris Cannam.
Chris@0:     
Chris@59:     This program is free software; you can redistribute it and/or
Chris@59:     modify it under the terms of the GNU General Public License as
Chris@59:     published by the Free Software Foundation; either version 2 of the
Chris@59:     License, or (at your option) any later version.  See the file
Chris@59:     COPYING included with this distribution for more information.
Chris@0: */
Chris@0: 
Chris@0: #ifndef _TIME_RULER_H_
Chris@0: #define _TIME_RULER_H_
Chris@0: 
Chris@287: #include "SingleColourLayer.h"
Chris@0: 
Chris@0: #include <QRect>
Chris@0: #include <QColor>
Chris@0: 
Chris@0: class View;
Chris@0: class Model;
Chris@0: class QPainter;
Chris@0: 
Chris@287: class TimeRulerLayer : public SingleColourLayer
Chris@0: {
Chris@0:     Q_OBJECT
Chris@0: 
Chris@0: public:
Chris@44:     TimeRulerLayer();
Chris@0: 
Chris@916:     virtual void paint(LayerGeometryProvider *v, QPainter &paint, QRect rect) const;
Chris@0: 
Chris@0:     void setModel(Model *);
Chris@0:     virtual const Model *getModel() const { return m_model; }
Chris@0: 
Chris@0:     enum LabelHeight { LabelTop, LabelMiddle, LabelBottom };
Chris@0:     void setLabelHeight(LabelHeight h) { m_labelHeight = h; }
Chris@0:     LabelHeight getLabelHeight() const { return m_labelHeight; }
Chris@0: 
Chris@918:     virtual bool snapToFeatureFrame(LayerGeometryProvider *, sv_frame_t &, int &, SnapType) const;
Chris@271: 
Chris@287:     virtual ColourSignificance getLayerColourSignificance() const {
Chris@287:         return ColourIrrelevant;
Chris@287:     }
Chris@0: 
Chris@905:     virtual bool getValueExtents(double &, double &, bool &, QString &) const {
Chris@79:         return false;
Chris@79:     }
Chris@79: 
Chris@335:     virtual QString getLayerPresentationName() const;
Chris@335: 
Chris@918:     virtual int getVerticalScaleWidth(LayerGeometryProvider *, bool, QPainter &) const { return 0; }
Chris@607: 
Chris@316:     virtual void toXml(QTextStream &stream, QString indent = "",
Chris@316:                        QString extraAttributes = "") const;
Chris@6: 
Chris@11:     void setProperties(const QXmlAttributes &attributes);
Chris@11: 
Chris@947:     virtual bool canExistWithoutModel() const { return true; }
Chris@947: 
Chris@0: protected:
Chris@0:     Model *m_model;
Chris@0:     LabelHeight m_labelHeight;
Chris@271: 
Chris@287:     virtual int getDefaultColourHint(bool dark, bool &impose);
Chris@287: 
Chris@918:     int getMajorTickSpacing(LayerGeometryProvider *, bool &quarterTicks) const;
Chris@0: };
Chris@0: 
Chris@0: #endif