| author | francesco-ST <francesco.abbate@st.com> | 2010年07月27日 15:34:41 +0200 |
|---|---|---|
| committer | francesco-ST <francesco.abbate@st.com> | 2010年07月27日 15:34:41 +0200 |
| commit | 5b7cd1356fb503390febbc21b2d535e98de7f776 (patch) | |
| tree | 27a1131ef6d25892fc5aa771130a2a1144765975 /agg-plot/scalable.h | |
| parent | 73378bdf0eddb1003fb3ad17e047da717b29a009 (diff) | |
| download | gsl-shell-5b7cd1356fb503390febbc21b2d535e98de7f776.tar.gz | |
| -rw-r--r-- | agg-plot/scalable.h | 70 |
diff --git a/agg-plot/scalable.h b/agg-plot/scalable.h new file mode 100644 index 00000000..154a8338 --- /dev/null +++ b/agg-plot/scalable.h @@ -0,0 +1,70 @@ +#ifndef AGGPLOT_SCALABLE_H +#define AGGPLOT_SCALABLE_H + +class vertex_source { +public: + virtual void rewind(unsigned path_id) = 0; + virtual unsigned vertex(double* x, double* y) = 0; + + virtual ~vertex_source() { }; +}; + +class scalable_object { +public: + virtual void approximation_scale(double as) = 0; + virtual bool dispose() = 0; + + virtual ~scalable_object() { }; +}; + +class scalable : public vertex_source, public scalable_object { +public: + virtual void rewind(unsigned path_id) = 0; + virtual unsigned vertex(double* x, double* y) = 0; + + virtual void approximation_scale(double as) = 0; + virtual bool dispose() = 0; + + virtual ~scalable() { }; +}; + +/* this class does work does permit to perform an AGG transformation + like conv_stroke, conv_dash or any other transform. This adapter + is mean to preserve the scalable or the window_drawable interface. */ +template<class conv_type, class base_type> +class vs_adapter : public base_type { +protected: + conv_type m_output; + base_type* m_source; + +public: + vs_adapter(base_type* src): m_output(*src), m_source(src) + { + }; + + template <class init_type> + vs_adapter(base_type* src, init_type& val): + m_output(*src, val), m_source(src) + {}; + + virtual void rewind(unsigned path_id) + { + m_output.rewind(path_id); + }; + + virtual unsigned vertex(double* x, double* y) + { + return m_output.vertex(x, y); + }; + + virtual bool dispose() + { + if (this->m_source->dispose()) + delete this->m_source; + return true; + }; + + conv_type& self() { return m_output; }; +}; + +#endif |