ref: 556618eb07d1ac6e2c629a60acd53c45d53261be
dir: /sys/src/cmd/plot/libplot/text.c/
/* t string Place the string so that its first character is centered on the current point (default). If string begins with `\C' (`\R'), it is centered (right-adjusted) on the current point. A backslash at the beginning of the string may be escaped with another backslash. */ #include "mplot.h" void text(char *s){ register int kx, ky; int centered, right, more; char *ss; ss=s; for(;;){ centered=right=more=0; if(*ss=='\\'){ ss++; switch(*ss){ case 'C': centered++; ss++; break; case 'R': right++; ss++; break; case 'L': ss++; break; case 'n': --ss; break; } } for(s=ss;*ss!='\0';ss++) if(ss[0]=='\\' && ss[1]=='n'){ more++; break; } kx = SCX(e1->copyx); ky = SCY(e1->copyy); ky=m_text(kx, ky, s, ss, e1->foregr, centered, right); if(!more)break; e1->copyy = ( (double)(ky) - e1->bottom)/e1->scaley + e1->ymin + .5; move(e1->copyx, e1->copyy); ss+=2; } }