/usr/include/mirserver/mir/scene/coordinate_translator.h is in libmirserver-dev 0.26.3+16.04.20170605-0ubuntu1.1.
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* Copyright © 2014 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3,
* as published by the Free Software Foundation.
*
* 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/>.
*
* Authored by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
*/
#ifndef MIR_SCENE_COORDINATE_TRANSLATOR_H_
#define MIR_SCENE_COORDINATE_TRANSLATOR_H_
#include "mir/geometry/point.h"
#include <memory>
namespace mir
{
namespace frontend
{
class Surface;
}
namespace scene
{
/**
* Support for the debug "surface to screen" coordinate translation interface.
* \note For shells which do surface transformations the default implementation
* will return incorrect results.
*/
class CoordinateTranslator
{
public:
virtual ~CoordinateTranslator() = default;
/**
* \brief Translate a surface coordinate into the screen coordinate space
* \param [in] surface A frontend::Surface. This will need to be dynamic_cast into
* the scene::Surface relevant for the shell.
* \param [in] x, y Coordinates to translate from the surface coordinate space
* \return The coordinates in the screen coordinate space.
* \throws A std::runtime_error if the translation cannot be performed
* for any reason.
*
* \note It is acceptable for this call to unconditionally throw a std::runtime_error.
* It is not required for normal functioning of the server or clients; clients which
* use the debug extension will receive an appropriate failure notice.
*/
virtual geometry::Point surface_to_screen(std::shared_ptr<frontend::Surface> surface,
int32_t x, int32_t y) = 0;
virtual bool translation_supported() const = 0;
};
}
}
#endif // MIR_SCENE_COORDINATE_TRANSLATOR_H_
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