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many pervasive changes primarily related to waveform drawing, particular content-dragging, colors, and more

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This commit is contained in:
Paul Davis 2013-04-24 15:42:14 -04:00
parent b36e085001
commit 6f664c1f67
22 changed files with 393 additions and 278 deletions
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32
libs/canvas/canvas/wave_view.h
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@ -105,17 +105,31 @@ private:
#endif
/** A cached, pre-rendered image of some section of a waveform.
It spans a range given relative to the start of the source
of the waveform data, so a range from N..M corresponds
to the sample range N..M within the source.
Invalidated by a changes to:
samples_per_pixel
colors
height
*/
class CacheEntry
{
public:
CacheEntry (WaveView const *, int, int);
public:
CacheEntry (WaveView const *, double, double, int);
~CacheEntry ();
int start () const {
double start () const {
return _start;
}
int end () const {
double end () const {
return _end;
}
@ -130,9 +144,11 @@ private:
Coord position (Coord) const;
WaveView const * _wave_view;
int _start;
int _end;
int _n_peaks;
double _start;
double _end;
int _n_peaks;
boost::shared_array<ARDOUR::PeakData> _peaks;
Cairo::RefPtr<Cairo::ImageSurface> _image;
};
@ -163,7 +179,7 @@ private:
* value as the crossfade editor needs to alter it.
*/
ARDOUR::frameoffset_t _region_start;
mutable std::list<CacheEntry*> _cache;
PBD::ScopedConnection invalidation_connection;