+/****************************************************************************
+ * Copyright (c) 2003-2013,2014 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
/*
- * $Id: edit_field.c,v 1.7 2003/05/17 23:16:13 tom Exp $
+ * $Id: edit_field.c,v 1.24 2014/09/05 08:39:52 tom Exp $
*
* A wrapper for form_driver() which keeps track of the user's editing changes
- * for each field, and makes the result available as a null-terminated string
- * in field_buffer(field,1).
+ * for each field, and makes the resulting length available as a
+ * null-terminated string in field_buffer(field,1).
*
* Thomas Dickey - 2003/4/26.
*/
#include <edit_field.h>
-#define MY_QUIT EDIT_FIELD('q')
-#define MY_INS_MODE EDIT_FIELD('t')
-
static struct {
int code;
int result;
{
CTRL('S'), REQ_BEG_FIELD, "go to beginning of field"
},
+ {
+ CTRL('T'), MY_EDT_MODE, "toggle O_EDIT mode, clear field status",
+ },
{
CTRL('U'), REQ_UP_FIELD, "move upward to field"
},
CTRL(']'), MY_INS_MODE, "toggle REQ_INS_MODE/REQ_OVL_MODE",
},
{
- KEY_F(1), EDIT_FIELD('h'), "show this screen",
+ KEY_F(1), MY_HELP, "show this screen",
},
{
KEY_BACKSPACE, REQ_DEL_PREV, "delete previous character"
keypad(help, TRUE);
keypad(data, TRUE);
- waddstr(data, "Defined form-traversal keys:\n");
+ waddstr(data, "Defined form edit/traversal keys:\n");
for (n = 0; n < SIZEOF(commands); ++n) {
const char *name;
#ifdef NCURSES_VERSION
do {
switch (ch) {
+ case KEY_HOME:
+ y1 = 0;
+ break;
+ case KEY_END:
+ y1 = y2;
+ break;
+ case KEY_PREVIOUS:
+ case KEY_PPAGE:
+ if (y1 > 0) {
+ y1 -= high / 2;
+ if (y1 < 0)
+ y1 = 0;
+ } else {
+ beep();
+ }
+ break;
+ case KEY_NEXT:
+ case KEY_NPAGE:
+ if (y1 < y2) {
+ y1 += high / 2;
+ if (y1 >= y2)
+ y1 = y2;
+ } else {
+ beep();
+ }
+ break;
case CTRL('P'):
case KEY_UP:
if (y1 > 0)
offset_in_field(FORM * form)
{
FIELD *field = current_field(form);
- return form->curcol + form->currow * field->dcols;
+ int currow, curcol;
+
+ form_getyx(form, currow, curcol);
+ return curcol + currow * field->dcols;
+}
+
+static void
+inactive_field(FIELD * f)
+{
+ set_field_back(f, field_attrs(f)->background);
+}
+
+FieldAttrs *
+field_attrs(FIELD * f)
+{
+ return (FieldAttrs *) field_userptr(f);
+}
+
+static int
+buffer_length(FIELD * f)
+{
+ return field_attrs(f)->row_lengths[0];
+}
+
+static void
+set_buffer_length(FIELD * f, int length)
+{
+ field_attrs(f)->row_lengths[0] = length;
+}
+
+/*
+ * The userptr is used in edit_field.c's inactive_field(), as well as for
+ * keeping track of the actual lengths of lines in a multiline field.
+ */
+void
+init_edit_field(FIELD * f, char *value)
+{
+ char empty[1];
+ FieldAttrs *ptr = field_attrs(f);
+ if (ptr == 0) {
+ int rows, cols, frow, fcol, nrow, nbuf;
+
+ ptr = typeCalloc(FieldAttrs, (size_t) 1);
+ ptr->background = field_back(f);
+ if (field_info(f, &rows, &cols, &frow, &fcol, &nrow, &nbuf) == E_OK) {
+ ptr->row_count = nrow;
+ ptr->row_lengths = typeCalloc(int, (size_t) nrow + 1);
+ }
+ }
+ if (value == 0) {
+ value = empty;
+ *value = '\0';
+ }
+ set_field_userptr(f, (void *) ptr);
+ set_field_buffer(f, 0, value); /* will be formatted */
+ set_field_buffer(f, 1, value); /* will be unformatted */
+ set_buffer_length(f, (int) strlen(value));
}
int
int ch = wgetch(form_win(form));
int status;
FIELD *before;
- FIELD *after;
unsigned n;
- char lengths[80];
int length;
- char *buffer;
- int before_row = form->currow;
- int before_col = form->curcol;
+ int before_row;
+ int before_col;
int before_off = offset_in_field(form);
+ form_getyx(form, before_row, before_col);
before = current_field(form);
set_field_back(before, A_NORMAL);
if (ch <= KEY_MAX) {
set_field_back(before, A_REVERSE);
} else if (ch <= MAX_FORM_COMMAND) {
- set_field_back(before, A_UNDERLINE);
+ inactive_field(before);
}
*result = ch;
if (status == E_OK) {
bool modified = TRUE;
- length = 0;
- if ((buffer = field_buffer(before, 1)) != 0)
- length = atoi(buffer);
+ length = buffer_length(before);
if (length < before_off)
length = before_off;
switch (*result) {
length = before_off;
break;
case REQ_CLR_EOL:
- if (before_row + 1 == before->rows)
+ if ((int) (before_row + 1) == (int) (before->rows))
length = before_off;
break;
case REQ_CLR_FIELD:
< MIN_FORM_COMMAND)
++length;
- sprintf(lengths, "%d", length);
- set_field_buffer(before, 1, lengths);
+ set_buffer_length(before, length);
}
- if ((after = current_field(form)) != before)
- set_field_back(before, A_UNDERLINE);
+ if (current_field(form) != before)
+ inactive_field(before);
return status;
}
#else
projects / ncurses.git / blobdiff