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comparison view/ViewProxy.h @ 950:43888f891733 osx-retina

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Some scaling & zoom bits
author Chris Cannam
date Mon, 20 Apr 2015 14:01:39 +0100
parents a5488775f880
children 17cb48115d22
comparison
equal deleted inserted replaced
949:e3c7da3d896e 950:43888f891733
31 } 31 }
32 virtual sv_frame_t getEndFrame() const { 32 virtual sv_frame_t getEndFrame() const {
33 return m_view->getEndFrame(); 33 return m_view->getEndFrame();
34 } 34 }
35 virtual int getXForFrame(sv_frame_t frame) const { 35 virtual int getXForFrame(sv_frame_t frame) const {
36 //!!! not actually correct, if frame lies between view's pixels
36 return m_scaleFactor * m_view->getXForFrame(frame); 37 return m_scaleFactor * m_view->getXForFrame(frame);
37 } 38 }
38 virtual sv_frame_t getFrameForX(int x) const { 39 virtual sv_frame_t getFrameForX(int x) const {
39 //!!! todo: interpolate 40 sv_frame_t f0 = m_view->getFrameForX(x / m_scaleFactor);
40 return m_view->getFrameForX(x / m_scaleFactor); 41 if (m_scaleFactor == 1) return f0;
42 sv_frame_t f1 = m_view->getFrameForX((x / m_scaleFactor) + 1);
43 return f0 + ((f1 - f0) * (x % m_scaleFactor)) / m_scaleFactor;
41 } 44 }
42 virtual sv_frame_t getModelsStartFrame() const { 45 virtual sv_frame_t getModelsStartFrame() const {
43 return m_view->getModelsStartFrame(); 46 return m_view->getModelsStartFrame();
44 } 47 }
45 virtual sv_frame_t getModelsEndFrame() const { 48 virtual sv_frame_t getModelsEndFrame() const {
51 return m_scaleFactor * 54 return m_scaleFactor *
52 m_view->getYForFrequency(frequency, minFreq, maxFreq, logarithmic); 55 m_view->getYForFrequency(frequency, minFreq, maxFreq, logarithmic);
53 } 56 }
54 virtual double getFrequencyForY(int y, double minFreq, double maxFreq, 57 virtual double getFrequencyForY(int y, double minFreq, double maxFreq,
55 bool logarithmic) const { 58 bool logarithmic) const {
56 //!!! todo: interpolate 59 double f0 = m_view->getFrequencyForY
57 return m_view->getFrequencyForY(y / m_scaleFactor, minFreq, maxFreq, logarithmic); 60 (y / m_scaleFactor, minFreq, maxFreq, logarithmic);
61 if (m_scaleFactor == 1) return f0;
62 double f1 = m_view->getFrequencyForY
63 ((y / m_scaleFactor) + 1, minFreq, maxFreq, logarithmic);
64 return f0 + ((f1 - f0) * (y % m_scaleFactor)) / m_scaleFactor;
58 } 65 }
59 virtual int getTextLabelHeight(const Layer *layer, QPainter &paint) const { 66 virtual int getTextLabelHeight(const Layer *layer, QPainter &paint) const {
60 return m_scaleFactor * m_view->getTextLabelHeight(layer, paint); 67 return m_scaleFactor * m_view->getTextLabelHeight(layer, paint);
61 } 68 }
62 virtual bool getValueExtents(QString unit, double &min, double &max, 69 virtual bool getValueExtents(QString unit, double &min, double &max,