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#ifndef __CANVAS_IMAGE__
#define __CANVAS_IMAGE__
#include <stdint.h>
#include <boost/shared_ptr.hpp>
#include <boost/shared_array.hpp>
#include "canvas/item.h"
namespace ArdourCanvas {
class Image : public Item
{
public:
Image (Group *, Cairo::Format, int width, int height);
struct Data {
Data (boost::shared_array<uint8_t> d, int w, int h, int s, Cairo::Format fmt)
: data (d)
, width (w)
, height (h)
, stride (s)
, format (fmt)
{}
boost::shared_array<uint8_t> data;
int width;
int height;
int stride;
Cairo::Format format;
};
boost::shared_ptr<Data> get_image ();
void put_image (boost::shared_ptr<Data>);
void render (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
void compute_bounding_box () const;
XMLNode* get_state () const;
void set_state (XMLNode const *);
private:
Cairo::Format _format;
int _width;
int _height;
int _data;
mutable boost::shared_ptr<Data> _current;
boost::shared_ptr<Data> _pending;
mutable bool _need_render;
mutable Cairo::RefPtr<Cairo::Surface> _surface;
void accept_data ();
PBD::Signal0<void> DataReady;
PBD::ScopedConnectionList data_connections;
};
}
#endif
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