2087 diff_set_topline(win_T *fromwin, win_T *towin)  in diff_set_topline()  argument
2104     towin->w_topfill = 0;  in diff_set_topline()
2114 	towin->w_topline = towin->w_buffer->b_ml.ml_line_count  in diff_set_topline()
2120 	toidx = diff_buf_idx(towin->w_buffer);  in diff_set_topline()
2124 	towin->w_topline = lnum + (dp->df_lnum[toidx] - dp->df_lnum[fromidx]);  in diff_set_topline()
2138 		towin->w_topfill = fromwin->w_topfill;  in diff_set_topline()
2149 			towin->w_topline = dp->df_lnum[toidx]  in diff_set_topline()
2151 			towin->w_topfill = fromwin->w_topfill;  in diff_set_topline()
2155 			towin->w_topline = dp->df_lnum[toidx]  in diff_set_topline()
2159 	    else if (towin->w_topline >= dp->df_lnum[toidx]  in diff_set_topline()
2164 		towin->w_topline = dp->df_lnum[toidx] + dp->df_count[toidx];  in diff_set_topline()
2169 			towin->w_topfill = fromwin->w_topfill;  in diff_set_topline()
2172 			towin->w_topfill = dp->df_lnum[fromidx]  in diff_set_topline()
2180     towin->w_botfill = FALSE;  in diff_set_topline()
2181     if (towin->w_topline > towin->w_buffer->b_ml.ml_line_count)  in diff_set_topline()
2183 	towin->w_topline = towin->w_buffer->b_ml.ml_line_count;  in diff_set_topline()
2184 	towin->w_botfill = TRUE;  in diff_set_topline()
2186     if (towin->w_topline < 1)  in diff_set_topline()
2188 	towin->w_topline = 1;  in diff_set_topline()
2189 	towin->w_topfill = 0;  in diff_set_topline()
2193     invalidate_botline_win(towin);  in diff_set_topline()
2194     changed_line_abv_curs_win(towin);  in diff_set_topline()
2196     check_topfill(towin, FALSE);  in diff_set_topline()
2198     (void)hasFoldingWin(towin, towin->w_topline, &towin->w_topline,  in diff_set_topline()