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-rw-r--r--c++/cursesf.cc137
1 files changed, 74 insertions, 63 deletions
diff --git a/c++/cursesf.cc b/c++/cursesf.cc
index 5d316489ea00..747564daa153 100644
--- a/c++/cursesf.cc
+++ b/c++/cursesf.cc
@@ -1,6 +1,6 @@
// * this is for making emacs happy: -*-Mode: C++;-*-
/****************************************************************************
- * Copyright 2019-2020,2021 Thomas E. Dickey *
+ * Copyright 2019-2024,2025 Thomas E. Dickey *
* Copyright 1998-2005,2011 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
@@ -36,7 +36,7 @@
#include "cursesf.h"
#include "cursesapp.h"
-MODULE_ID("$Id: cursesf.cc,v 1.26 2021/04/17 18:11:08 tom Exp $")
+MODULE_ID("$Id: cursesf.cc,v 1.28 2025/01/25 21:20:17 tom Exp $")
NCursesFormField::~NCursesFormField () THROWS(NCursesException)
{
@@ -50,33 +50,39 @@ NCursesFormField::~NCursesFormField () THROWS(NCursesException)
FIELD**
NCursesForm::mapFields(NCursesFormField* nfields[])
{
- int fieldCount = 0,lcv;
+ int fieldCount = 0, lcv;
FIELD** old_fields;
- assert(nfields != 0);
+ assert(nfields != NULL);
for (lcv=0; nfields[lcv]->field; ++lcv)
++fieldCount;
- FIELD** fields = new FIELD*[fieldCount + 1];
+ try {
+ FIELD** fields = new FIELD*[fieldCount + 1];
- for (lcv=0;nfields[lcv]->field;++lcv) {
- fields[lcv] = nfields[lcv]->field;
- }
- fields[lcv] = NULL;
+ for (lcv=0;nfields[lcv]->field;++lcv) {
+ fields[lcv] = nfields[lcv]->field;
+ }
+ fields[lcv] = NULL;
- my_fields = nfields;
+ my_fields = nfields;
- if (form && (old_fields = ::form_fields(form))) {
- ::set_form_fields(form, static_cast<FIELD**>(0));
- delete[] old_fields;
+ if (form && (old_fields = ::form_fields(form))) {
+ ::set_form_fields(form, static_cast<FIELD**>(0));
+ delete[] old_fields;
+ }
+ return fields;
}
- return fields;
+ catch (std::bad_alloc const&) {
+ OnError (E_SYSTEM_ERROR);
+ }
+ return NULL;
}
void NCursesForm::setDefaultAttributes()
{
- NCursesApplication* S = NCursesApplication::getApplication();
+ const NCursesApplication* S = NCursesApplication::getApplication();
int n = count();
if (n > 0) {
@@ -108,46 +114,51 @@ NCursesForm::InitForm(NCursesFormField* nfields[],
bool with_frame,
bool autoDelete_Fields)
{
- int mrows, mcols;
-
- keypad(TRUE);
- meta(TRUE);
-
- b_framed = with_frame;
- b_autoDelete = autoDelete_Fields;
-
- form = static_cast<FORM*>(0);
- form = ::new_form(mapFields(nfields));
- if (!form)
- OnError (E_SYSTEM_ERROR);
-
- UserHook* hook = new UserHook;
- hook->m_user = NULL;
- hook->m_back = this;
- hook->m_owner = form;
- ::set_form_userptr(form, reinterpret_cast<void*>(hook));
-
- ::set_form_init (form, _nc_xx_frm_init);
- ::set_form_term (form, _nc_xx_frm_term);
- ::set_field_init (form, _nc_xx_fld_init);
- ::set_field_term (form, _nc_xx_fld_term);
-
- scale(mrows, mcols);
- ::set_form_win(form, w);
-
- if (with_frame) {
- if ((mrows > height()-2) || (mcols > width()-2))
- OnError(E_NO_ROOM);
- sub = new NCursesWindow(*this,mrows,mcols,1,1,'r');
- ::set_form_sub(form, sub->w);
- b_sub_owner = TRUE;
+ try {
+ int mrows, mcols;
+
+ keypad(TRUE);
+ meta(TRUE);
+
+ b_framed = with_frame;
+ b_autoDelete = autoDelete_Fields;
+
+ form = static_cast<FORM*>(0);
+ form = ::new_form(mapFields(nfields));
+ if (!form)
+ OnError (E_SYSTEM_ERROR);
+
+ UserHook* hook = new UserHook;
+ hook->m_user = NULL;
+ hook->m_back = this;
+ hook->m_owner = form;
+ ::set_form_userptr(form, reinterpret_cast<void*>(hook));
+
+ ::set_form_init (form, _nc_xx_frm_init);
+ ::set_form_term (form, _nc_xx_frm_term);
+ ::set_field_init (form, _nc_xx_fld_init);
+ ::set_field_term (form, _nc_xx_fld_term);
+
+ scale(mrows, mcols);
+ ::set_form_win(form, w);
+
+ if (with_frame) {
+ if ((mrows > height()-2) || (mcols > width()-2))
+ OnError(E_NO_ROOM);
+ sub = new NCursesWindow(*this,mrows,mcols,1,1,'r');
+ ::set_form_sub(form, sub->w);
+ b_sub_owner = TRUE;
+ }
+ else {
+ sub = static_cast<NCursesWindow*>(NULL);
+ b_sub_owner = FALSE;
+ }
+ options_on(O_NL_OVERLOAD);
+ setDefaultAttributes();
}
- else {
- sub = static_cast<NCursesWindow*>(0);
- b_sub_owner = FALSE;
+ catch (std::bad_alloc const&) {
+ OnError (E_SYSTEM_ERROR);
}
- options_on(O_NL_OVERLOAD);
- setDefaultAttributes();
}
NCursesForm::~NCursesForm() THROWS(NCursesException)
@@ -156,13 +167,13 @@ NCursesForm::~NCursesForm() THROWS(NCursesException)
delete hook;
if (b_sub_owner) {
delete sub;
- ::set_form_sub(form, static_cast<WINDOW *>(0));
+ ::set_form_sub(form, static_cast<WINDOW *>(NULL));
}
if (form) {
FIELD** fields = ::form_fields(form);
int cnt = count();
- OnError(::set_form_fields(form, static_cast<FIELD**>(0)));
+ OnError(::set_form_fields(form, static_cast<FIELD**>(NULL)));
if (b_autoDelete) {
if (cnt>0) {
@@ -381,19 +392,19 @@ bool _nc_xx_fld_fcheck(FIELD *f, const void *u)
{
(void) f;
NCursesFormField* F = reinterpret_cast<NCursesFormField*>(const_cast<void *>(u));
- assert(F != 0);
+ assert(F != NULL);
UserDefinedFieldType* udf = reinterpret_cast<UserDefinedFieldType*>(F->fieldtype());
- assert(udf != 0);
+ assert(udf != NULL);
return udf->field_check(*F);
}
bool _nc_xx_fld_ccheck(int c, const void *u)
{
NCursesFormField* F = reinterpret_cast<NCursesFormField*>(const_cast<void *>(u));
- assert(F != 0);
+ assert(F != NULL);
UserDefinedFieldType* udf =
reinterpret_cast<UserDefinedFieldType*>(F->fieldtype());
- assert(udf != 0);
+ assert(udf != NULL);
return udf->char_check(c);
}
@@ -423,10 +434,10 @@ bool _nc_xx_next_choice(FIELD *f, const void *u)
{
(void) f;
NCursesFormField* F = reinterpret_cast<NCursesFormField*>(const_cast<void *>(u));
- assert(F != 0);
+ assert(F != NULL);
UserDefinedFieldType_With_Choice* udf =
reinterpret_cast<UserDefinedFieldType_With_Choice*>(F->fieldtype());
- assert(udf != 0);
+ assert(udf != NULL);
return udf->next(*F);
}
@@ -434,10 +445,10 @@ bool _nc_xx_prev_choice(FIELD *f, const void *u)
{
(void) f;
NCursesFormField* F = reinterpret_cast<NCursesFormField*>(const_cast<void *>(u));
- assert(F != 0);
+ assert(F != NULL);
UserDefinedFieldType_With_Choice* udf =
reinterpret_cast<UserDefinedFieldType_With_Choice*>(F->fieldtype());
- assert(udf != 0);
+ assert(udf != NULL);
return udf->previous(*F);
}
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-19 09:32:10 +0000