layout.c File Reference

#include "internal.h"

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Functions
int	ncplane_puttext (ncplane *n, int y, ncalign_e align, const char *text, size_t *bytes)

Function Documentation

ncplane_puttext()

int ncplane_puttext	(	ncplane *	n,
		int	y,
		ncalign_e	align,
		const char *	text,
		size_t *	bytes
	)

Definition at line 149 of file layout.c.

                                                                                        {
  if(bytes){
    *bytes = 0;
  }
  int totalcols = 0;
  // text points to the text we have *not* yet output. at each step, we see
  // how much space we have available, and begin iterating from text. remember
  // the most recent linebreaker that we see. when we exhaust our line, print
  // through the linebreaker, and advance text.
  // if we're using NCALIGN_LEFT, we'll be printing with x==-1, i.e. wherever
  // the cursor is. if there's insufficient room to print anything, we need to
  // try moving to the next line first. FIXME this ought actually apply to all
  // alignments, which ought be taken relative to n->x. no change for
  // NCALIGN_RIGHT, but NCALIGN_CENTER needs explicitly handle it...
  do{
    if(y != -1){
      if(ncplane_cursor_move_yx(n, y, -1)){
        return -1;
      }
    }
    size_t linebytes = 0;
    int cols = puttext_line(n, align, text, &linebytes);
    if(cols < 0){
      return -1;
    }
    totalcols += cols;
    if(bytes){
      *bytes += linebytes;
    }
    text += linebytes;
//fprintf(stderr, "new cursor: %d/%d consumed: %zu\n", n->y, n->x, linebytes);
    y = n->y;
  }while(*text);
  return totalcols;
}

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