ncurses 6.3 - patch 20220521

[ncurses.git] / test / dup_field.c

diff --git a/test/dup_field.c b/test/dup_field.c
index eb87c90c559e9918d9542b0c2db0993a091e0648..05444f43a039d178f06242187aa39d2e05399a72 100644 (file)
--- a/test/dup_field.c
+++ b/test/dup_field.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2020,2021 Thomas E. Dickey                                     *
+ * Copyright 2020-2021,2022 Thomas E. Dickey                                *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -26,9 +26,9 @@
  * authorization.                                                           *
  ****************************************************************************/
 /*
- * $Id: dup_field.c,v 1.2 2021/03/27 23:41:57 tom Exp $
+ * $Id: dup_field.c,v 1.6 2022/05/21 20:59:26 tom Exp $
  *
- * Demonstrate move_field().
+ * Demonstrate dup_field().
  */
 
 #include <test.priv.h>
@@ -38,7 +38,8 @@
 #include <edit_field.h>
 #include <popup_msg.h>
 
-#define MY_DEMO                EDIT_FIELD('f')
+#define DO_DEMO        CTRL('F')       /* actual key for toggling demo-mode */
+#define MY_DEMO        EDIT_FIELD('f') /* internal request-code */
 
 static char empty[] = "";
 static FIELD *all_fields[100];
@@ -51,7 +52,6 @@ static struct {
     { CTRL('A'),     REQ_BEG_FIELD,   "go to beginning of field" },
     { CTRL('D'),     REQ_DOWN_FIELD,  "move downward to field" },
     { CTRL('E'),     REQ_END_FIELD,   "go to end of field" },
-    { CTRL('G'),     MY_DEMO,         "move current field with cursor keys" },
     { CTRL('H'),     REQ_DEL_PREV,    "delete previous character" },
     { CTRL('I'),     REQ_NEXT_FIELD,  "go to next field" },
     { CTRL('K'),     REQ_CLR_EOF,     "clear to end of field" },
@@ -72,7 +72,8 @@ static struct {
     { KEY_NEXT,      REQ_NEXT_FIELD,  "go to next field" },
     { KEY_PREVIOUS,  REQ_PREV_FIELD,  "go to previous field" },
     { KEY_RIGHT,     REQ_RIGHT_CHAR,  "move right 1 character" },
-    { KEY_UP,        REQ_UP_CHAR,     "move up 1 character" }
+    { KEY_UP,        REQ_UP_CHAR,     "move up 1 character" },
+    { DO_DEMO,       MY_DEMO,         "duplicate current field" }
 };
 /* *INDENT-ON* */
 
@@ -108,11 +109,6 @@ my_help_edit_field(void)
     free(msgs);
 }
 
-static void
-do_demo(FORM *form)
-{
-}
-
 static FIELD *
 make_label(const char *label, int frow, int fcol)
 {
@@ -147,28 +143,6 @@ erase_form(FORM *f)
     werase(w);
     wrefresh(w);
     delwin(s);
-    delwin(w);
-}
-
-static int
-my_form_driver(FORM *form, int c)
-{
-    switch (c) {
-    case MY_QUIT:
-       if (form_driver(form, REQ_VALIDATION) == E_OK)
-           return (TRUE);
-       break;
-    case MY_HELP:
-       my_help_edit_field();
-       break;
-    case MY_DEMO:
-       do_demo(form);
-       break;
-    default:
-       beep();
-       break;
-    }
-    return (FALSE);
 }
 
 static FieldAttrs *
@@ -291,6 +265,55 @@ my_edit_field(FORM *form, int *result)
     return status;
 }
 
+static FIELD **
+copy_fields(FIELD **source, FIELD *extra, size_t length)
+{
+    FIELD **target = typeCalloc(FIELD *, length + 1);
+    memcpy(target, source, length * sizeof(FIELD *));
+    target[length] = extra;
+    return target;
+}
+
+static void
+do_demo(FORM *form)
+{
+    int count = field_count(form);
+    FIELD *my_field = current_field(form);
+    FIELD **old_fields = form_fields(form);
+
+    if (count > 0 && old_fields != NULL && my_field != NULL) {
+       FIELD **new_fields = copy_fields(old_fields,
+                                        dup_field(my_field,
+                                                  form_field_row(my_field)
+                                                  + 1,
+                                                  form_field_col(my_field)),
+                                        (size_t) count);
+       if (new_fields != NULL)
+           set_form_fields(form, new_fields);
+    }
+}
+
+static int
+my_form_driver(FORM *form, int c)
+{
+    switch (c) {
+    case MY_QUIT:
+       if (form_driver(form, REQ_VALIDATION) == E_OK)
+           return (TRUE);
+       break;
+    case MY_HELP:
+       my_help_edit_field();
+       break;
+    case MY_DEMO:
+       do_demo(form);
+       break;
+    default:
+       beep();
+       break;
+    }
+    return (FALSE);
+}
+
 static void
 demo_forms(void)
 {