#ifndef AGGPLOT_RECT_H #define AGGPLOT_RECT_H #include #include "agg_basics.h" enum set_oper_e { rect_union, rect_intersect }; template class opt_rect { typedef agg::rect_base rect_type; bool m_defined; rect_type m_rect; public: opt_rect() : m_defined(false) {}; opt_rect(T x1, T y1, T x2, T y2) : m_defined(true), m_rect(x1, y1, x2, y2) {}; void clear() { m_defined = false; }; void set(const rect_type& r) { m_defined = true; m_rect = r; }; bool is_defined() const { return m_defined; }; const rect_type& rect() const { assert (m_defined); return m_rect; } void operator = (const opt_rect& src) { m_defined = src.m_defined; if (m_defined) m_rect = src.m_rect; } template void add(const rect_type& r) { if (op == rect_union) m_rect = (m_defined ? agg::unite_rectangles(m_rect, r) : r); else m_rect = (m_defined ? agg::intersect_rectangles(m_rect, r) : r); m_defined = true; } template void add(const opt_rect& optr) { if (optr.m_defined) this->add(optr.m_rect); } }; template agg::rect_base rect_of_slot_matrix (const agg::trans_affine& mtx) { return agg::rect_base(T(mtx.tx), T(mtx.ty), T(mtx.sx + mtx.tx), T(mtx.sy + mtx.ty)); } #endif