Chris@919: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@919: 
Chris@919: /*
Chris@919:     Sonic Visualiser
Chris@919:     An audio file viewer and annotation editor.
Chris@919:     Centre for Digital Music, Queen Mary, University of London.
Chris@919:     
Chris@919:     This program is free software; you can redistribute it and/or
Chris@919:     modify it under the terms of the GNU General Public License as
Chris@919:     published by the Free Software Foundation; either version 2 of the
Chris@919:     License, or (at your option) any later version.  See the file
Chris@919:     COPYING included with this distribution for more information.
Chris@919: */
Chris@919: 
Chris@919: #ifndef VIEW_PROXY_H
Chris@919: #define VIEW_PROXY_H
Chris@919: 
Chris@919: #include "LayerGeometryProvider.h"
Chris@919: 
Chris@919: class ViewProxy : public LayerGeometryProvider
Chris@919: {
Chris@919: public:
Chris@919:     ViewProxy(View *view, int scaleFactor) :
Chris@919: 	m_view(view), m_scaleFactor(scaleFactor) { }
Chris@919: 
Chris@919:     virtual sv_frame_t getStartFrame() const {
Chris@919: 	return m_view->getStartFrame();
Chris@919:     }
Chris@919:     virtual sv_frame_t getCentreFrame() const {
Chris@919: 	return m_view->getCentreFrame();
Chris@919:     }
Chris@919:     virtual sv_frame_t getEndFrame() const {
Chris@919: 	return m_view->getEndFrame();
Chris@919:     }
Chris@919:     virtual int getXForFrame(sv_frame_t frame) const {
Chris@950:         //!!! not actually correct, if frame lies between view's pixels
Chris@919: 	return m_scaleFactor * m_view->getXForFrame(frame);
Chris@919:     }
Chris@919:     virtual sv_frame_t getFrameForX(int x) const {
Chris@950:         sv_frame_t f0 = m_view->getFrameForX(x / m_scaleFactor);
Chris@950:         if (m_scaleFactor == 1) return f0;
Chris@950:         sv_frame_t f1 = m_view->getFrameForX((x / m_scaleFactor) + 1);
Chris@950:         return f0 + ((f1 - f0) * (x % m_scaleFactor)) / m_scaleFactor;
Chris@919:     }
Chris@1030:     virtual int getXForViewX(int viewx) const {
Chris@1030:         return viewx * m_scaleFactor;
Chris@1030:     }
Chris@1030:     virtual int getViewXForX(int x) const {
Chris@1030:         return x / m_scaleFactor;
Chris@1030:     }
Chris@919:     virtual sv_frame_t getModelsStartFrame() const {
Chris@919: 	return m_view->getModelsStartFrame();
Chris@919:     }
Chris@919:     virtual sv_frame_t getModelsEndFrame() const {
Chris@919: 	return m_view->getModelsEndFrame();
Chris@919:     }
Chris@919:     virtual double getYForFrequency(double frequency,
Chris@919: 				    double minFreq, double maxFreq, 
Chris@919:                                     bool logarithmic) const {
Chris@919: 	return m_scaleFactor *
Chris@919: 	    m_view->getYForFrequency(frequency, minFreq, maxFreq, logarithmic);
Chris@919:     }
Chris@919:     virtual double getFrequencyForY(int y, double minFreq, double maxFreq,
Chris@919: 				    bool logarithmic) const {
Chris@950:         double f0 = m_view->getFrequencyForY
Chris@950:             (y / m_scaleFactor, minFreq, maxFreq, logarithmic);
Chris@950:         if (m_scaleFactor == 1) return f0;
Chris@950:         double f1 = m_view->getFrequencyForY
Chris@950:             ((y / m_scaleFactor) + 1, minFreq, maxFreq, logarithmic);
Chris@950:         return f0 + ((f1 - f0) * (y % m_scaleFactor)) / m_scaleFactor;
Chris@919:     }
Chris@919:     virtual int getTextLabelHeight(const Layer *layer, QPainter &paint) const {
Chris@919: 	return m_scaleFactor * m_view->getTextLabelHeight(layer, paint);
Chris@919:     }
Chris@919:     virtual bool getValueExtents(QString unit, double &min, double &max,
Chris@919:                                  bool &log) const {
Chris@919: 	return m_view->getValueExtents(unit, min, max, log);
Chris@919:     }
Chris@919:     virtual int getZoomLevel() const {
Chris@919: 	int z = m_view->getZoomLevel();
Chris@1000: //	cerr << "getZoomLevel: from " << z << " to ";
Chris@919: 	z = z / m_scaleFactor;
Chris@1000: //	cerr << z << endl;
Chris@999:         if (z < 1) z = 1;
Chris@919: 	return z;
Chris@919:     }
Chris@919:     virtual QRect getPaintRect() const {
Chris@919: 	QRect r = m_view->getPaintRect();
Chris@919: 	return QRect(r.x() * m_scaleFactor,
Chris@919: 		     r.y() * m_scaleFactor,
Chris@919: 		     r.width() * m_scaleFactor,
Chris@919: 		     r.height() * m_scaleFactor);
Chris@919:     }
Chris@954:     virtual QSize getPaintSize() const {
Chris@954:         return getPaintRect().size();
Chris@954:     }
Chris@954:     virtual int getPaintWidth() const { 
Chris@954:         return getPaintRect().width();
Chris@954:     }
Chris@954:     virtual int getPaintHeight() const { 
Chris@954:         return getPaintRect().height();
Chris@954:     }
Chris@919:     virtual bool hasLightBackground() const {
Chris@919: 	return m_view->hasLightBackground();
Chris@919:     }
Chris@919:     virtual QColor getForeground() const {
Chris@919: 	return m_view->getForeground();
Chris@919:     }
Chris@919:     virtual QColor getBackground() const {
Chris@919: 	return m_view->getBackground();
Chris@919:     }
Chris@919:     virtual ViewManager *getViewManager() const {
Chris@919: 	return m_view->getViewManager();
Chris@919:     }
Chris@919: 	
Chris@954:     virtual bool shouldIlluminateLocalFeatures(const Layer *layer,
Chris@954:                                                QPoint &point) const {
Chris@954:         QPoint p;
Chris@954: 	bool should = m_view->shouldIlluminateLocalFeatures(layer, p);
Chris@954:         point = QPoint(p.x() * m_scaleFactor, p.y() * m_scaleFactor);
Chris@954:         return should;
Chris@919:     }
Chris@954: 
Chris@919:     virtual bool shouldShowFeatureLabels() const {
Chris@919: 	return m_view->shouldShowFeatureLabels();
Chris@919:     }
Chris@919: 
Chris@919:     virtual void drawVisibleText(QPainter &p, int x, int y,
Chris@919: 				 QString text, TextStyle style) const {
Chris@919: 	m_view->drawVisibleText(p, x, y, text, style);
Chris@919:     }
Chris@919: 
Chris@919:     virtual void drawMeasurementRect(QPainter &p, const Layer *layer,
Chris@919:                                      QRect rect, bool focus) const {
Chris@919: 	m_view->drawMeasurementRect(p, layer, rect, focus);
Chris@919:     }
Chris@919: 
Chris@1030:     virtual void updatePaintRect(QRect r) {
Chris@1030:         m_view->update(r.x() / m_scaleFactor,
Chris@1030:                        r.y() / m_scaleFactor,
Chris@1030:                        r.width() / m_scaleFactor,
Chris@1030:                        r.height() / m_scaleFactor);
Chris@1030:     }
Chris@1030:     
Chris@919:     virtual View *getView() { return m_view; }
Chris@919:     virtual const View *getView() const { return m_view; }
Chris@919: 
Chris@919: private:
Chris@919:     View *m_view;
Chris@919:     int m_scaleFactor;
Chris@919: };
Chris@919: 
Chris@919: #endif