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