#ifndef AGGPLOT_TEXT_SHAPE_H #define AGGPLOT_TEXT_SHAPE_H #include "text_label.h" #include "sg_object.h" namespace draw { class text_shape : public sg_object { public: text_shape(double x, double y, const char* text, double _size = 10.0, double hjustif = 0.0, double vjustif = 0.0): m_text_label(text, round(_size)), m_x(x), m_y(y), m_font_size(_size), m_size(_size) { m_matrix.tx = m_x; m_matrix.ty = m_y; m_text_label.model_mtx(m_matrix); compute_bounding_box(); } virtual void rewind(unsigned path_id) { m_text_label.rewind(0.0, 0.0); } virtual unsigned vertex(double* x, double* y) { return m_text_label.vertex(x, y); } virtual void bounding_box(double *x1, double *y1, double *x2, double *y2) { *x1 = m_bbox.x1; *y1 = m_bbox.y1; *x2 = m_bbox.x2; *y2 = m_bbox.y2; } void compute_bounding_box() { const double pad = 1.0; const double tx = m_matrix.tx, ty = m_matrix.ty; m_bbox.x1 = tx - pad; m_bbox.y1 = ty - pad; m_bbox.x2 = tx + m_text_label.get_text_width() + pad; m_bbox.y2 = ty + m_text_label.get_text_height() + pad; } virtual str write_svg(int id, agg::rgba8 c, double h) { const str& text = m_text_label.text(); double txt_size = m_size; const agg::trans_affine& m = m_matrix; double x = m.tx, y = m.ty; str s = str::print("" \ " %s" \ "", x, svg_y_coord(y, h), id, int(txt_size), id, text.cstr()); return s; } virtual void apply_transform(const agg::trans_affine& m, double as) { m_text_label.font_size(m.sx * m_font_size, round(m.sy * m_font_size)); double x = m_x, y = m_y; m.transform(&x, &y); m_matrix.tx = x; m_matrix.ty = y; m_text_label.approximation_scale(m.scale()); } private: text_label m_text_label; double m_x, m_y; double m_font_size; agg::trans_affine m_matrix; double m_size; agg::rect_base m_bbox; }; } #endif