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/*
Copyright (C) 2013-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DCPOMATIC_CROP_H
#define DCPOMATIC_CROP_H
#include <dcp/types.h>
#include <memory>
namespace cxml {
class Node;
}
/** @struct Crop
* @brief A description of the crop of an image or video.
*/
struct Crop
{
Crop() {}
Crop(int l, int r, int t, int b) : left (l), right (r), top (t), bottom (b) {}
explicit Crop(std::shared_ptr<cxml::Node>);
/** Number of pixels to remove from the left-hand side */
int left = 0;
/** Number of pixels to remove from the right-hand side */
int right = 0;
/** Number of pixels to remove from the top */
int top = 0;
/** Number of pixels to remove from the bottom */
int bottom = 0;
dcp::Size apply(dcp::Size s, int minimum = 4) const {
s.width -= left + right;
s.height -= top + bottom;
if (s.width < minimum) {
s.width = minimum;
}
if (s.height < minimum) {
s.height = minimum;
}
return s;
}
void as_xml (xmlpp::Node *) const;
};
extern bool operator==(Crop const & a, Crop const & b);
extern bool operator!=(Crop const & a, Crop const & b);
#endif
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