/* @(#) _scrdown.c: 1.1 10/15/83 (1.9 10/27/82) */ #include "curses.ext" /* * Scroll the screen down (e.g. in the normal direction of text) one line * physically, and update the internal notion of what's on the screen * (SP->cur_body) to know about this. Do it in such a way that we will * realize this has been done later and take advantage of it. */ _scrdown() { struct line *old_d, *old_p; register int i, l=lines; #ifdef DEBUG if(outf) { fprintf(outf, "_scrdown()\n"); fprintf( outf, "\tDoing _pos( %d, 0 )\n", lines - 1 ); fprintf( outf, "\tDoing _scrollf(1)\n" ); } #endif /* physically... */ _pos(lines-1, 0); _scrollf(1); /* internally */ old_d = SP->std_body[1]; old_p = SP->cur_body[1]; #ifdef DEBUG if(outf) { fprintf( outf, "lines = l = %d\n", l ); } #endif DEBUG for( i=1; i<=l; i++ ) { SP->std_body[i] = SP->std_body[i+1]; SP->cur_body[i] = SP->cur_body[i+1]; } SP->std_body[1] = NULL; SP->cur_body[1] = NULL; _line_free(old_d); if( old_d != old_p ) { _line_free(old_p); } }