#include "agg_rendering_buffer.h" #include "agg_rasterizer_scanline_aa.h" #include "agg_pixfmt_rgb.h" #include "agg_trans_affine.h" #include "text.h" namespace draw { void text::apply_transform(const agg::trans_affine& m, double as) { double x = m_x, y = m_y; m.transform(&x, &y); m_matrix.tx = x; m_matrix.ty = round(y); } void text::bounding_box(double *x1, double *y1, double *x2, double *y2) { *x1 = *x2 = m_x; *y1 = *y2 = m_y; } str text::write_svg(int id, agg::rgba8 c, double h) { const agg::trans_affine& m = m_matrix; const double eps = 1.0e-6; str s; const str& content = m_text_label.text(); if (str_is_null(&content)) return s; str style; int hjust = lrint(m_hjustif * 2.0); if (hjust == 1) style.append(";text-anchor:middle"); else if (hjust>= 2) style.append(";text-anchor:end"); if (c.r != 0 || c.g != 0 || c.b != 0) { char rgbstr[8]; format_rgb(rgbstr, c); style.printf_add(";fill:%s", rgbstr); } bool need_rotate = !is_unit_matrix(m, eps); int txt_size = text_height(); double x = 0.0, y = - m_vjustif * text_height() * 1.2; if (!need_rotate) { x = x + m.tx; y = svg_y_coord(y + m.ty, h); } else { y = -y; } const char* cont = get_text(); str txt = str::print("" \ " %s" \ "", x, y, id, txt_size, style.cstr(), id, cont); if (need_rotate) { s = str::print("%s", m.sx, m.shx, m.shy, m.sy, m.tx, svg_y_coord(m.ty, h), txt.cstr()); } else { s = txt; } return s; } }