#ifndef AGGPLOT_DRAWABLE_H #define AGGPLOT_DRAWABLE_H #include "scalable.h" #include "utils.h" #include "agg_trans_affine.h" #include "agg_conv_transform.h" #include "agg_bounding_rect.h" struct drawable : public vertex_source { virtual void bounding_box(double *x1, double *y1, double *x2, double *y2) = 0; virtual ~drawable() { }; }; class boxed_drawable : public drawable { drawable *m_object; public: boxed_drawable(drawable *p) : drawable(), m_object(p) {}; ~boxed_drawable() { }; virtual void rewind(unsigned path_id) { m_object->rewind(path_id); }; virtual unsigned vertex(double* x, double* y) { return m_object->vertex(x, y); }; virtual void apply_transform(const agg::trans_affine& m, double as) { m_object->apply_transform(m, as); }; virtual void bounding_box(double *x1, double *y1, double *x2, double *y2) { m_object->bounding_box(x1, y1, x2, y2); }; private: boxed_drawable(); }; /* this class take a "scalable" object and it does transform it to a "drawable" by adding a conv_transform that manage the window size transformation. */ class window_scalable : public drawable { scalable *m_source; agg::conv_transform m_trans; public: window_scalable(scalable *src, agg::trans_affine& mtx = identity_matrix) : drawable(), m_source(src), m_trans(*m_source, mtx) { }; ~window_scalable() { delete m_source; }; virtual void rewind(unsigned path_id) { m_trans.rewind(path_id); }; virtual unsigned vertex(double* x, double* y) { return m_trans.vertex(x, y); }; virtual void apply_transform(const agg::trans_affine& m, double as) { m_trans.transformer(m); m_source->apply_transform (m, as * m.scale()); }; virtual void bounding_box(double *x1, double *y1, double *x2, double *y2) { agg::bounding_rect_single (*m_source, 0, x1, y1, x2, y2); }; }; template class drawable_adapter : public vs_adapter { typedef vs_adapter root_type; public: drawable_adapter(drawable *src) : root_type(src) { }; template drawable_adapter(drawable* src, init_type& val): root_type(src, val) {}; virtual void apply_transform(const agg::trans_affine& m, double as) { this->m_source->apply_transform(m, as); }; virtual void bounding_box(double *x1, double *y1, double *x2, double *y2) { this->m_source->bounding_box(x1, y1, x2, y2); }; }; #endif