+++ /dev/null
-/*
- * 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef PULSEVIEW_PV_VIEW_ROWITEMITERATOR_H
-#define PULSEVIEW_PV_VIEW_ROWITEMITERATOR_H
-
-#include <algorithm>
-#include <cassert>
-#include <iterator>
-#include <memory>
-#include <stack>
-#include <type_traits>
-#include <vector>
-
-#include <boost/thread.hpp>
-
-#include <pv/sigsession.h>
-
-namespace pv {
-namespace view {
-
-template<class Owner, class Item> class RowItemIterator
-{
-public:
- typedef typename std::conditional<std::is_const<Owner>::value,
- typename Owner::item_list::const_iterator,
- typename Owner::item_list::iterator>::type child_iterator;
-
- typedef std::shared_ptr<Item> value_type;
- typedef ptrdiff_t difference_type;
- typedef value_type pointer;
- typedef value_type& reference;
- typedef std::forward_iterator_tag iterator_category;
-
-public:
- RowItemIterator(Owner *owner) :
- owner_(owner),
- lock_(owner->session().signals_mutex()) {}
-
- RowItemIterator(Owner *owner, child_iterator iter) :
- owner_(owner),
- lock_(owner->session().signals_mutex()) {
- assert(owner);
- if (iter != owner->child_items().end())
- iter_stack_.push(iter);
- }
-
- RowItemIterator(const RowItemIterator<Owner, Item> &o) :
- owner_(o.owner_),
- lock_(*o.lock_.mutex()),
- iter_stack_(o.iter_stack_) {}
-
- reference operator*() const {
- return *iter_stack_.top();
- }
-
- reference operator->() const {
- return *this;
- }
-
- RowItemIterator<Owner, Item>& operator++() {
- using std::dynamic_pointer_cast;
- using std::shared_ptr;
-
- assert(owner_);
- assert(!iter_stack_.empty());
-
- shared_ptr<Owner> owner(dynamic_pointer_cast<Owner>(
- *iter_stack_.top()));
- if (owner && !owner->child_items().empty()) {
- owner_ = owner.get();
- iter_stack_.push(owner->child_items().begin());
- } else {
- ++iter_stack_.top();
- while (owner_ && iter_stack_.top() ==
- owner_->child_items().end()) {
- iter_stack_.pop();
- owner_ = iter_stack_.empty() ? nullptr :
- (*iter_stack_.top()++)->owner();
- }
- }
-
- return *this;
- }
-
- RowItemIterator<Owner, Item> operator++(int) {
- RowItemIterator<Owner, Item> pre = *this;
- ++*this;
- return pre;
- }
-
- bool operator==(const RowItemIterator &o) const {
- return (iter_stack_.empty() && o.iter_stack_.empty()) ||
- (owner_ == o.owner_ &&
- iter_stack_.size() == o.iter_stack_.size() &&
- std::equal(
- owner_->child_items().cbegin(),
- owner_->child_items().cend(),
- o.owner_->child_items().cbegin()));
- }
-
- bool operator!=(const RowItemIterator &o) const {
- return !((const RowItemIterator&)*this == o);
- }
-
- void swap(RowItemIterator<Owner, Item>& other) {
- swap(owner_, other.owner_);
- swap(iter_stack_, other.iter_stack_);
- }
-
-private:
- Owner *owner_;
- boost::shared_lock<boost::shared_mutex> lock_;
- std::stack<child_iterator> iter_stack_;
-};
-
-template<class Owner, class Item>
-void swap(RowItemIterator<Owner, Item>& a, RowItemIterator<Owner, Item>& b)
-{
- a.swap(b);
-}
-
-} // namespace view
-} // namespace pv
-
-#endif // PULSEVIEW_PV_VIEW_ROWITEMITERATOR_H