* Fix some of the cursor motion commands to handle multiline fields
* Fix line wrapping code for multiline fields
This commit is contained in:
blymn
parent
c56fc52024
commit
98181dccba
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@ -1,4 +1,4 @@
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/* $NetBSD: internals.c,v 1.16 2001/05/16 11:51:16 blymn Exp $ */
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/* $NetBSD: internals.c,v 1.17 2001/05/23 15:02:55 blymn Exp $ */
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/*-
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* Copyright (c) 1998-1999 Brett Lymn
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@ -364,7 +364,7 @@ _formi_wrap_field(FIELD *field, unsigned int loc)
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}
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/* split on first whitespace before current word */
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pos = width + field->lines[row].start;
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pos = width + field->lines[row].start - 1;
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if (pos >= field->buffers[0].length)
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pos = field->buffers[0].length - 1;
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@ -394,6 +394,15 @@ _formi_wrap_field(FIELD *field, unsigned int loc)
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(isblank(str[pos])))
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continue;
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/*
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* otherwise, if we are still sitting on a
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* blank but not at the end of the line
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* move forward one char so the blank
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* is on the line boundary.
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*/
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if (isblank(str[pos]))
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pos++;
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if (split_line(field, pos) != E_OK) {
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return E_REQUEST_DENIED;
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}
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@ -417,9 +426,16 @@ _formi_join_line(FIELD *field, unsigned int pos, int direction)
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unsigned int row, i;
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int old_alloced, old_row_count;
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struct _formi_field_lines *saved;
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#ifdef DEBUG
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int dbg_ok = FALSE;
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if (_formi_create_dbg_file() == E_OK) {
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dbg_ok = TRUE;
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}
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#endif
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if ((saved = (struct _formi_field_lines *)
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malloc(field->row_count * sizeof(struct _formi_field_lines)))
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malloc(field->lines_alloced * sizeof(struct _formi_field_lines)))
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== NULL)
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return E_REQUEST_DENIED;
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@ -430,12 +446,33 @@ _formi_join_line(FIELD *field, unsigned int pos, int direction)
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row = find_cur_line(field, pos);
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#ifdef DEBUG
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if (dbg_ok == TRUE) {
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fprintf(dbg, "join_line: working on row %d, row_count = %d\n",
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row, field->row_count);
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}
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#endif
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if ((direction == JOIN_NEXT) || (direction == JOIN_NEXT_NW)) {
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/* see if there is another line following... */
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if (row == (field->row_count - 1)) {
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free(saved);
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return E_REQUEST_DENIED;
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}
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#ifdef DEBUG
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if (dbg_ok == TRUE) {
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fprintf(dbg,
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"join_line: join_next before end = %d, length = %d",
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field->lines[row].end,
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field->lines[row].length);
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fprintf(dbg,
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" :: next row end = %d, length = %d\n",
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field->lines[row + 1].end,
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field->lines[row + 1].length);
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}
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#endif
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field->lines[row].end = field->lines[row + 1].end;
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field->lines[row].length += field->lines[row + 1].length;
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/* shift all the remaining lines up.... */
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@ -446,6 +483,20 @@ _formi_join_line(FIELD *field, unsigned int pos, int direction)
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free(saved);
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return E_REQUEST_DENIED;
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}
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#ifdef DEBUG
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if (dbg_ok == TRUE) {
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fprintf(dbg,
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"join_line: join_prev before end = %d, length = %d",
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field->lines[row].end,
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field->lines[row].length);
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fprintf(dbg,
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" :: prev row end = %d, length = %d\n",
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field->lines[row - 1].end,
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field->lines[row - 1].length);
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}
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#endif
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field->lines[row - 1].end = field->lines[row].end;
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field->lines[row - 1].length += field->lines[row].length;
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/* shift all the remaining lines up */
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@ -453,6 +504,14 @@ _formi_join_line(FIELD *field, unsigned int pos, int direction)
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field->lines[i - 1] = field->lines[i];
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}
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#ifdef DEBUG
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if (dbg_ok == TRUE) {
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fprintf(dbg,
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"join_line: exit end = %d, length = %d\n",
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field->lines[row].end, field->lines[row].length);
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}
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#endif
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field->row_count--;
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/* wrap the field if required, if this fails undo the change */
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@ -509,8 +568,23 @@ split_line(FIELD *field, unsigned pos)
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row, field->lines[row].end, row,
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field->lines[row].length);
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}
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assert(((field->lines[row].end < INT_MAX) &&
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(field->lines[row].length < INT_MAX) &&
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(field->lines[row].length > 0)));
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#endif
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/* if asked to split right where the line already starts then
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* just return - nothing to do.
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*/
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if (field->lines[row].start == pos)
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return E_OK;
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for (i = field->row_count - 1; i > row; i--) {
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field->lines[i + 1] = field->lines[i];
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}
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field->lines[row + 1].end = field->lines[row].end;
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field->lines[row].end = pos - 1;
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field->lines[row].length = pos - field->lines[row].start;
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@ -523,7 +597,9 @@ split_line(FIELD *field, unsigned pos)
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(field->lines[row].end < INT_MAX) &&
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(field->lines[row].length < INT_MAX) &&
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(field->lines[row + 1].start < INT_MAX) &&
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(field->lines[row + 1].length < INT_MAX)));
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(field->lines[row + 1].length < INT_MAX) &&
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(field->lines[row].length > 0) &&
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(field->lines[row + 1].length > 0)));
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if (dbg_ok == TRUE) {
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fprintf(dbg,
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@ -533,16 +609,20 @@ split_line(FIELD *field, unsigned pos)
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fprintf(dbg, "lines[%d].start = %d, lines[%d].end = %d, ",
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row + 1, field->lines[row + 1].start, row + 1,
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field->lines[row + 1].end);
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fprintf(dbg, "lines[%d].length = %d\n", row + 1,
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field->lines[row + 1].length);
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fprintf(dbg, "lines[%d].length = %d, row_count = %d\n",
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row + 1, field->lines[row + 1].length,
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field->row_count + 1);
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}
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#endif
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for (i = row + 2; i < field->row_count; i++) {
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field->lines[i + 1] = field->lines[i];
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}
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field->row_count++;
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#ifdef DEBUG
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if (dbg_ok == TRUE) {
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bump_lines(field, 0, 0); /* will report line data for us */
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}
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#endif
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return E_OK;
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}
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@ -771,7 +851,7 @@ _formi_find_pages(FORM *form)
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void
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_formi_redraw_field(FORM *form, int field)
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{
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unsigned int pre, post, flen, slen, i, row, start;
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unsigned int pre, post, flen, slen, i, row, start, last_row;
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char *str;
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FIELD *cur;
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#ifdef DEBUG
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@ -784,7 +864,12 @@ _formi_redraw_field(FORM *form, int field)
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slen = 0;
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start = 0;
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for (row = cur->start_line; row < cur->row_count; row++) {
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if ((cur->row_count - cur->start_line) < cur->rows)
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last_row = cur->row_count;
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else
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last_row = cur->start_line + cur->rows;
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for (row = cur->start_line; row < last_row; row++) {
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wmove(form->scrwin,
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(int) (cur->form_row + row - cur->start_line),
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(int) cur->form_col);
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@ -1147,29 +1232,67 @@ _formi_manipulate_field(FORM *form, int c)
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* cursor is at the end of the field.
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*/
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if (((cur->opts & O_STATIC) == O_STATIC) &&
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(cur->cursor_xpos == cur->cols - 1))
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(cur->cursor_xpos == cur->cols - 1) &&
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((cur->rows + cur->nrows) == 1))
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return E_REQUEST_DENIED;
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if ((cur->cursor_xpos + cur->start_char + 1)
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> cur->buffers[0].length)
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return E_REQUEST_DENIED;
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cur->cursor_xpos++;
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if (cur->cursor_xpos >= cur->cols - 1) {
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cur->cursor_xpos = cur->cols - 1;
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if ((cur->opts & O_STATIC) != O_STATIC)
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cur->start_char++;
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if ((cur->rows + cur->nrows) == 1) {
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cur->cursor_xpos++;
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if (cur->cursor_xpos >= cur->cols - 1) {
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cur->cursor_xpos = cur->cols - 1;
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if ((cur->opts & O_STATIC) != O_STATIC)
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cur->start_char++;
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}
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} else {
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row = cur->start_line + cur->cursor_ypos;
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if (cur->cursor_xpos == (cur->lines[row].length - 1)) {
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if ((row + 1) >= cur->row_count)
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return E_REQUEST_DENIED;
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cur->cursor_xpos = 0;
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if (cur->cursor_ypos == (cur->rows - 1))
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cur->start_line++;
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else
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cur->cursor_ypos++;
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} else
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cur->cursor_xpos++;
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}
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break;
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case REQ_PREV_CHAR:
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if (cur->cursor_xpos == 0) {
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if (cur->start_char > 0)
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cur->start_char--;
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else
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if ((cur->rows + cur->nrows) == 1) {
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if (cur->cursor_xpos == 0) {
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if (cur->start_char > 0)
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cur->start_char--;
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else
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return E_REQUEST_DENIED;
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} else
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cur->cursor_xpos--;
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} else {
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if ((cur->cursor_xpos == 0) &&
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(cur->cursor_ypos == 0) &&
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(cur->start_line == 0))
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return E_REQUEST_DENIED;
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} else
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cur->cursor_xpos--;
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if (cur->cursor_xpos > 0) {
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cur->cursor_xpos--;
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} else {
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if (cur->cursor_ypos > 0)
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cur->cursor_ypos--;
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else
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cur->start_line--;
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cur->cursor_xpos =
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cur->lines[cur->start_line
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+ cur->cursor_ypos].length
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- 1;
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}
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}
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break;
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case REQ_NEXT_LINE:
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@ -1248,8 +1371,6 @@ _formi_manipulate_field(FORM *form, int c)
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break;
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case REQ_BEG_LINE:
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cur->start_char =
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cur->lines[cur->start_line + cur->cursor_ypos].start;
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cur->cursor_xpos = 0;
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break;
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@ -1262,9 +1383,6 @@ _formi_manipulate_field(FORM *form, int c)
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cur->cursor_ypos = cur->row_count - 1;
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}
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cur->start_char =
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cur->lines[cur->start_line + cur->cursor_ypos].start;
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cur->cursor_xpos = 0;
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/* we fall through here deliberately, we are on the
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* correct row, now we need to get to the end of the
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* line.
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@ -1275,53 +1393,49 @@ _formi_manipulate_field(FORM *form, int c)
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start = cur->lines[cur->start_line + cur->cursor_ypos].start;
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end = cur->lines[cur->start_line + cur->cursor_ypos].end;
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if (end - start > cur->cols - 1) {
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cur->cursor_xpos = cur->cols - 1;
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cur->start_char = end - cur->cols;
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if ((cur->opts & O_STATIC) != O_STATIC)
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cur->start_char++;
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if ((cur->rows + cur->nrows) == 1) {
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if (end - start > cur->cols - 1) {
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cur->cursor_xpos = cur->cols - 1;
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cur->start_char = end - cur->cols;
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if ((cur->opts & O_STATIC) != O_STATIC)
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cur->start_char++;
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} else {
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cur->cursor_xpos = end - start + 1;
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if (((cur->opts & O_STATIC) == O_STATIC) &&
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((end - start) == (cur->cols - 1)))
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cur->cursor_xpos--;
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cur->start_char = start;
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}
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} else {
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cur->cursor_xpos = end - start + 1;
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if (((cur->opts & O_STATIC) == O_STATIC) &&
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((end - start) == (cur->cols - 1)))
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cur->cursor_xpos--;
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cur->start_char = start;
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}
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break;
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case REQ_LEFT_CHAR:
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if ((cur->cursor_xpos == 0) && (cur->start_char == 0))
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if ((cur->cursor_xpos == 0) && (cur->start_char == 0)
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&& (cur->start_line == 0) && (cur->cursor_ypos == 0))
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return E_REQUEST_DENIED;
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if (cur->cursor_xpos == 0) {
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cur->start_char--;
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start = cur->lines[cur->cursor_ypos
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+ cur->start_line].start;
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if (cur->start_char < start) {
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if ((cur->rows + cur->nrows) == 1) {
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if (cur->start_char > 0)
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cur->start_char--;
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else
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return E_REQUEST_DENIED;
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} else {
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if ((cur->cursor_ypos == 0) &&
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(cur->start_line == 0))
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{
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cur->start_char++;
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return E_REQUEST_DENIED;
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}
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if (cur->cursor_ypos == 0)
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cur->start_line--;
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else
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cur->cursor_ypos--;
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end = cur->lines[cur->cursor_ypos
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+ cur->start_line].end;
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len = cur->lines[cur->cursor_ypos
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+ cur->start_line].length;
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if (len >= cur->cols) {
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cur->cursor_xpos = cur->cols - 1;
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cur->start_char = end - cur->cols;
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} else {
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cur->cursor_xpos = len;
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cur->start_char = start;
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}
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cur->cursor_xpos =
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cur->lines[cur->cursor_ypos
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+ cur->start_line].length;
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}
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} else
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cur->cursor_xpos--;
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@ -1353,12 +1467,10 @@ _formi_manipulate_field(FORM *form, int c)
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} else
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cur->cursor_ypos++;
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row++;
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cur->cursor_xpos = 0;
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cur->start_char = cur->lines[row].start;
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} else {
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if (cur->cursor_xpos == cur->cols - 1)
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if (((cur->rows + cur->nrows) == 1) &&
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(cur->cursor_xpos == cur->cols - 1))
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cur->start_char++;
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else
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cur->cursor_xpos++;
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@ -1382,7 +1494,6 @@ _formi_manipulate_field(FORM *form, int c)
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row = cur->start_line + cur->cursor_ypos;
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cur->start_char = cur->lines[row].start;
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if (cur->cursor_xpos > cur->lines[row].length)
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cur->cursor_xpos = cur->lines[row].length;
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break;
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@ -1396,7 +1507,6 @@ _formi_manipulate_field(FORM *form, int c)
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cur->cursor_ypos++;
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row = cur->start_line + cur->cursor_ypos;
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cur->start_char = cur->lines[row].start;
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if (cur->cursor_xpos > cur->lines[row].length)
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cur->cursor_xpos = cur->lines[row].length;
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break;
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@ -1486,6 +1596,7 @@ _formi_manipulate_field(FORM *form, int c)
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bcopy(&cur->buffers[0].string[end + 1],
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&cur->buffers[0].string[start],
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(unsigned) cur->buffers[0].length - end + 1);
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/* XXXX wrong */
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if (cur->row_count > 1) {
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cur->row_count--;
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bcopy(&cur->lines[row + 1], &cur->lines[row],
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