ncurses 5.9 - patch 20130608

[ncurses.git] / test / edit_field.c

diff --git a/test/edit_field.c b/test/edit_field.c
index d4fa7f765c851d8ecc944e84c482a0d0412924c4..7b83bd2ae864e65cbd45905c398ffd8b95c57e66 100644 (file)
--- a/test/edit_field.c
+++ b/test/edit_field.c
@@ -1,9 +1,36 @@
+/****************************************************************************
+ * Copyright (c) 2003-2008,2011 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 1.11 2005/10/01 16:21:55 tom Exp $
+ * $Id: edit_field.c,v 1.21 2013/06/08 21:38:12 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.
  */
@@ -261,7 +288,58 @@ static int
 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)
+{
+    FieldAttrs *ptr = field_attrs(f);
+    if (ptr == 0) {
+       int rows, cols, frow, fcol, nrow, nbuf;
+
+       ptr = typeCalloc(FieldAttrs, 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);
+       }
+    }
+    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
@@ -270,21 +348,19 @@ edit_field(FORM * form, int *result)
     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;
@@ -300,9 +376,7 @@ edit_field(FORM * form, int *result)
     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) {
@@ -408,12 +482,11 @@ edit_field(FORM * form, int *result)
            < 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