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/*
Copyright (C) 2011-2013 Paul Davis
Author: Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <boost/shared_ptr.hpp>
#include <boost/shared_array.hpp>
#include "pbd/properties.h"
#include "ardour/types.h"
#include <glibmm/refptr.h>
#include "canvas/item.h"
#include "canvas/fill.h"
#include "canvas/outline.h"
namespace ARDOUR {
class AudioRegion;
}
namespace Gdk {
class Pixbuf;
}
class WaveViewTest;
namespace ArdourCanvas {
class WaveView : virtual public Item, public Outline, public Fill
{
public:
WaveView (Group *, boost::shared_ptr<ARDOUR::AudioRegion>);
void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
void compute_bounding_box () const;
void set_samples_per_pixel (double);
void set_height (Distance);
void set_channel (int);
void set_region_start (ARDOUR::frameoffset_t);
void region_resized ();
/* XXX */
void rebuild () {}
#ifdef CANVAS_COMPATIBILITY
void*& property_gain_src () {
return _foo_void;
}
void*& property_gain_function () {
return _foo_void;
}
bool& property_rectified () {
return _foo_bool;
}
bool& property_logscaled () {
return _foo_bool;
}
double& property_amplitude_above_axis () {
return _foo_double;
}
Color& property_clip_color () {
return _foo_uint;
}
Color& property_zero_color () {
return _foo_uint;
}
private:
void* _foo_void;
bool _foo_bool;
int _foo_int;
Color _foo_uint;
double _foo_double;
#endif
class CacheEntry
{
public:
CacheEntry (WaveView const *, int, int);
~CacheEntry ();
int start () const {
return _start;
}
int end () const {
return _end;
}
boost::shared_array<ARDOUR::PeakData> peaks () const {
return _peaks;
}
Cairo::RefPtr<Cairo::ImageSurface> image();
void clear_image ();
private:
Coord position (float) const;
WaveView const * _wave_view;
int _start;
int _end;
int _n_peaks;
boost::shared_array<ARDOUR::PeakData> _peaks;
Cairo::RefPtr<Cairo::ImageSurface> _image;
};
friend class CacheEntry;
friend class ::WaveViewTest;
void invalidate_whole_cache ();
void invalidate_image_cache ();
boost::shared_ptr<ARDOUR::AudioRegion> _region;
int _channel;
double _samples_per_pixel;
Coord _height;
Color _wave_color;
/** The `start' value to use for the region; we can't use the region's
* value as the crossfade editor needs to alter it.
*/
ARDOUR::frameoffset_t _region_start;
mutable std::list<CacheEntry*> _cache;
};
}
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