-/*
- * This file is part of the PulseView project.
- *
- * Copyright (C) 2014 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWITEMITERATOR_HPP
-#define PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWITEMITERATOR_HPP
-
-#include <algorithm>
-#include <cassert>
-#include <iterator>
-#include <memory>
-#include <stack>
-#include <type_traits>
-#include <vector>
-
-#include <pv/session.hpp>
-
-using std::dynamic_pointer_cast;
-using std::forward_iterator_tag;
-using std::shared_ptr;
-using std::stack;
-
-namespace pv {
-namespace views {
-namespace TraceView {
-
-template<class Owner, class Item> class ViewItemIterator
-{
-public:
- typedef typename Owner::item_list::const_iterator child_iterator;
- typedef shared_ptr<Item> value_type;
- typedef ptrdiff_t difference_type;
- typedef value_type pointer;
- typedef const value_type& reference;
- typedef forward_iterator_tag iterator_category;
-
-public:
- ViewItemIterator(Owner *owner) :
- owner_stack_({owner}) {}
-
- ViewItemIterator(Owner *owner, child_iterator iter) :
- owner_stack_({owner}) {
- assert(owner);
- if (iter != owner->child_items().end())
- iter_stack_.push(iter);
- }
-
- ViewItemIterator(const ViewItemIterator<Owner, Item> &o) :
- owner_stack_(o.owner_stack_),
- iter_stack_(o.iter_stack_) {}
-
- reference operator*() const {
- return *iter_stack_.top();
- }
-
- reference operator->() const {
- return *this;
- }
-
- ViewItemIterator<Owner, Item>& operator++() {
- assert(!owner_stack_.empty());
- assert(!iter_stack_.empty());
-
- shared_ptr<Owner> owner(dynamic_pointer_cast<Owner>(
- *iter_stack_.top()));
- if (owner && !owner->child_items().empty()) {
- owner_stack_.push(owner.get());
- iter_stack_.push(owner->child_items().begin());
- } else {
- while (!iter_stack_.empty() && (++iter_stack_.top()) ==
- owner_stack_.top()->child_items().end()) {
- owner_stack_.pop();
- iter_stack_.pop();
- }
- }
-
- return *this;
- }
-
- ViewItemIterator<Owner, Item> operator++(int) {
- ViewItemIterator<Owner, Item> pre = *this;
- ++*this;
- return pre;
- }
-
- bool operator==(const ViewItemIterator &o) const {
- return (iter_stack_.empty() && o.iter_stack_.empty()) || (
- iter_stack_.size() == o.iter_stack_.size() &&
- owner_stack_.top() == o.owner_stack_.top() &&
- iter_stack_.top() == o.iter_stack_.top());
- }
-
- bool operator!=(const ViewItemIterator &o) const {
- return !((const ViewItemIterator&)*this == o);
- }
-
- void swap(ViewItemIterator<Owner, Item>& other) {
- swap(owner_stack_, other.owner_stack_);
- swap(iter_stack_, other.iter_stack_);
- }
-
-private:
- stack<Owner*> owner_stack_;
- stack<child_iterator> iter_stack_;
-};
-
-template<class Owner, class Item>
-void swap(ViewItemIterator<Owner, Item>& a, ViewItemIterator<Owner, Item>& b)
-{
- a.swap(b);
-}
-
-} // namespace TraceView
-} // namespace views
-} // namespace pv
-
-#endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWITEMITERATOR_HPP