xlnt/source/worksheet/range_iterator.cpp
Crzyrndm bc8cd21d67 range_iterator - operator* const overloads
Users may still want to dereference a const iterator (note: not a const_iterator).
Also use the "reference" typedef to ensure there is only 1 source of information
2018-07-10 12:40:46 +12:00

278 lines
6.9 KiB
C++

// Copyright (c) 2014-2018 Thomas Fussell
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, WRISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE
//
// @license: http://www.opensource.org/licenses/mit-license.php
// @author: see AUTHORS file
#include <xlnt/cell/cell.hpp>
#include <xlnt/worksheet/range.hpp>
#include <xlnt/worksheet/range_iterator.hpp>
#include <xlnt/worksheet/range_reference.hpp>
#include <xlnt/worksheet/worksheet.hpp>
namespace xlnt {
range_iterator::reference range_iterator::operator*()
{
return cell_vector(ws_, cursor_, bounds_, order_, skip_null_, false);
}
const range_iterator::reference range_iterator::operator*() const
{
return cell_vector(ws_, cursor_, bounds_, order_, skip_null_, false);
}
range_iterator::range_iterator(worksheet &ws, const cell_reference &cursor,
const range_reference &bounds, major_order order, bool skip_null)
: ws_(ws),
cursor_(cursor),
bounds_(bounds),
order_(order),
skip_null_(skip_null)
{
if (skip_null_ && (**this).empty())
{
++(*this);
}
}
bool range_iterator::operator==(const range_iterator &other) const
{
return ws_ == other.ws_
&& cursor_ == other.cursor_
&& order_ == other.order_
&& skip_null_ == other.skip_null_;
}
bool range_iterator::operator!=(const range_iterator &other) const
{
return !(*this == other);
}
range_iterator &range_iterator::operator--()
{
if (order_ == major_order::row)
{
if (cursor_.row() > bounds_.top_left().row())
{
cursor_.row(cursor_.row() - 1);
}
if (skip_null_)
{
while ((**this).empty() && cursor_.row() > bounds_.top_left().row())
{
cursor_.row(cursor_.row() - 1);
}
}
}
else
{
if (cursor_.column() > bounds_.top_left().column())
{
cursor_.column_index(cursor_.column_index() - 1);
}
if (skip_null_)
{
while ((**this).empty() && cursor_.row() > bounds_.top_left().column())
{
cursor_.column_index(cursor_.column_index() - 1);
}
}
}
return *this;
}
range_iterator range_iterator::operator--(int)
{
range_iterator old = *this;
--*this;
return old;
}
range_iterator &range_iterator::operator++()
{
if (order_ == major_order::row)
{
if (cursor_.row() <= bounds_.bottom_right().row())
{
cursor_.row(cursor_.row() + 1);
}
if (skip_null_)
{
while ((**this).empty() && cursor_.row() <= bounds_.bottom_right().row())
{
cursor_.row(cursor_.row() + 1);
}
}
}
else
{
if (cursor_.column() <= bounds_.bottom_right().column())
{
cursor_.column_index(cursor_.column_index() + 1);
}
if (skip_null_)
{
while ((**this).empty() && cursor_.column() <= bounds_.bottom_right().column())
{
cursor_.column_index(cursor_.column_index() + 1);
}
}
}
return *this;
}
range_iterator range_iterator::operator++(int)
{
range_iterator old = *this;
++*this;
return old;
}
const_range_iterator::const_range_iterator(const worksheet &ws, const cell_reference &cursor,
const range_reference &bounds, major_order order, bool skip_null)
: ws_(ws.d_),
cursor_(cursor),
bounds_(bounds),
order_(order),
skip_null_(skip_null)
{
if (skip_null_ && (**this).empty())
{
++(*this);
}
}
bool const_range_iterator::operator==(const const_range_iterator &other) const
{
return ws_ == other.ws_
&& cursor_ == other.cursor_
&& order_ == other.order_
&& skip_null_ == other.skip_null_;
}
bool const_range_iterator::operator!=(const const_range_iterator &other) const
{
return !(*this == other);
}
const_range_iterator &const_range_iterator::operator--()
{
if (order_ == major_order::row)
{
if (cursor_.row() > bounds_.top_left().row())
{
cursor_.row(cursor_.row() - 1);
}
if (skip_null_)
{
while ((**this).empty() && cursor_.row() > bounds_.top_left().row())
{
cursor_.row(cursor_.row() - 1);
}
}
}
else
{
if (cursor_.column() > bounds_.top_left().column())
{
cursor_.column_index(cursor_.column_index() - 1);
}
if (skip_null_)
{
while ((**this).empty() && cursor_.row() > bounds_.top_left().column())
{
cursor_.column_index(cursor_.column_index() - 1);
}
}
}
return *this;
}
const_range_iterator const_range_iterator::operator--(int)
{
const_range_iterator old = *this;
--*this;
return old;
}
const_range_iterator &const_range_iterator::operator++()
{
if (order_ == major_order::row)
{
if (cursor_.row() <= bounds_.bottom_right().row())
{
cursor_.row(cursor_.row() + 1);
}
if (skip_null_)
{
while ((**this).empty() && cursor_.row() <= bounds_.bottom_right().row())
{
cursor_.row(cursor_.row() + 1);
}
}
}
else
{
if (cursor_.column() <= bounds_.bottom_right().column())
{
cursor_.column_index(cursor_.column_index() + 1);
}
if (skip_null_)
{
while ((**this).empty() && cursor_.column() <= bounds_.bottom_right().column())
{
cursor_.column_index(cursor_.column_index() + 1);
}
}
}
return *this;
}
const_range_iterator const_range_iterator::operator++(int)
{
const_range_iterator old = *this;
++*this;
return old;
}
const const_range_iterator::reference const_range_iterator::operator*() const
{
return cell_vector(ws_, cursor_, bounds_, order_, skip_null_, false);
}
} // namespace xlnt