85 lines
2 KiB
C++
85 lines
2 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2017 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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// mapnik
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#include <mapnik/request.hpp>
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namespace mapnik
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{
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request::request(unsigned width,
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unsigned height,
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box2d<double> const& extent)
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: width_(width),
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height_(height),
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extent_(extent),
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buffer_size_(0) {}
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request::~request() {}
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unsigned request::width() const
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{
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return width_;
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}
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unsigned request::height() const
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{
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return height_;
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}
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void request::set_buffer_size(int buffer_size)
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{
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buffer_size_ = buffer_size;
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}
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int request::buffer_size() const
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{
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return buffer_size_;
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}
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void request::set_extent(box2d<double> const& box)
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{
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extent_ = box;
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}
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box2d<double> const& request::extent() const
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{
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return extent_;
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}
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box2d<double> request::get_buffered_extent() const
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{
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double extra = 2.0 * scale() * buffer_size_;
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box2d<double> ext(extent_);
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ext.width(extent_.width() + extra);
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ext.height(extent_.height() + extra);
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return ext;
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}
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double request::scale() const
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{
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if (width_>0)
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return extent_.width()/width_;
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return extent_.width();
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}
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}
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