-// -*- C++ -*-
-/* This file is part of
- * =================================================
- *
- * LyX, The Document Processor
- * Copyright 1995 Matthias Ettrich.
- * Copyright 1995-2000 The LyX Team.
+/**
+ * \file RadioButtonGroup.C
+ * Copyright 1995 Matthias Ettrich.
+ * Copyright 2000 Baruch Even
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
*
- * This file Copyright 2000 Baruch Even
- * ================================================= */
+ * \author Baruch Even
+ * \author Rob Lahaye
+ *
+ * Full author contact details are available in file CREDITS
+ */
+#include <config.h>
-#ifdef __GNUG__
-#pragma implementation
-#endif
-#include <config.h>
#include "RadioButtonGroup.h"
+#include FORMS_H_LOCATION
+#include "support/LAssert.h"
#include "debug.h" // for lyxerr
+#include "support/lyxfunctional.h"
-#include <functional>
#include <algorithm>
#include <iterator>
+
using std::find_if;
-using std::bind2nd;
using std::endl;
-void RadioButtonGroup::registerRadioButton(FL_OBJECT *button, int value)
+
+void RadioButtonGroup::init(FL_OBJECT * ob, size_type value)
{
- map.push_back( ButtonValuePair(button, value) );
+ // Object must be a ROUND3DBUTTON (let all radio buttons look the same)
+ // and of type RADIO_BUTTON (otherwise it ain't work).
+ lyx::Assert(ob && ob->objclass == FL_ROUND3DBUTTON
+ && ob->type == FL_RADIO_BUTTON);
+
+ map.push_back(ButtonValuePair(ob, value));
}
-void RadioButtonGroup::reset()
+void RadioButtonGroup::set(size_type value) const
{
- map.clear();
+ ButtonValueMap::const_iterator it =
+ find_if(map.begin(), map.end(),
+ lyx::equal_2nd_in_pair<ButtonValuePair>(value));
+
+ if (it != map.end()) {
+ fl_set_button(it->first, 1);
+ } else {
+ // We found nothing: report it and do nothing.
+ lyxerr << "BUG: Requested value in RadioButtonGroup "
+ "doesn't exist" << endl;
+ }
}
- // Functor to help us in our work, we should try to find how to achieve
- // this with only STL predicates, but its easier to write this than to
- // dig. If you can find the equivalent STL predicate combination, let me
- // know.
- //
- // The idea is to take a pair and a value and return true when the second
- // element in the pair equals the value.
- template <typename T>
- struct equal_to_second_in_pair {
- typedef bool result_type;
- typedef T first_argument_type;
- typedef typename T::second_type second_argument_type;
-
- bool operator() (
- pair<typename T::first_type, typename T::second_type> const & left,
- typename T::second_type const & right) const
- {
- return left.second == right;
- }
- };
-
-void RadioButtonGroup::setButton(int value)
+
+void RadioButtonGroup::set(FL_OBJECT * ob) const
{
- ButtonValueMap::const_iterator it =
- find_if(map.begin(), map.end(),
- bind2nd(equal_to_second_in_pair<ButtonValuePair>(),
- value));
-
- // If we found nothing, report it and return
- if (it == map.end()) {
- lyxerr << "BUG: Requested value in RadioButtonGroup doesn't exists"
- << endl;
- } else {
- fl_set_button((*it).first, 1);
- }
-
+ // Object must be member of the radiobutton group.
+ bool isMember = false;
+ ButtonValueMap::const_iterator it = map.begin();
+ for (; it != map.end() && !isMember; ++it) {
+ isMember = it->first == ob;
+ }
+
+ if (isMember) {
+ fl_set_button(ob, 1);
+ } else {
+ // Object is not a member; report it and do nothing.
+ lyxerr << "BUG: Requested object is not a member of "
+ << "the RadioButtonGroup." << endl;
+ }
}
-template<typename T>
+
+template < typename T >
struct is_set_button {
- bool operator() (T const & item) const
- {
- return fl_get_button( (item).first );
- }
+ bool operator() (T const & item) const
+ {
+ return fl_get_button((item).first);
+ }
};
-int RadioButtonGroup::getButton()
-{
- // Find the first button that is active
- ButtonValueMap::iterator it =
- find_if(map.begin(), map.end(),
- is_set_button<ButtonValuePair>() );
- // If such a button was found, return its value.
- if (it != map.end()) {
- return (*it).second;
- }
+RadioButtonGroup::size_type RadioButtonGroup::get() const
+{
+ // Find the active button.
+ ButtonValueMap::const_iterator it =
+ find_if(map.begin(), map.end(),
+ is_set_button<ButtonValuePair> ());
- lyxerr << "BUG: No radio button found to be active." << endl;
+ if (it != map.end())
+ return it->second;
- // Else return 0.
- return 0;
+ // We found nothing: report it and return 0
+ lyxerr << "BUG: No active radio button found." << endl;
+ return 0;
}
-