transform.h

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/*
 * LibrePCB - Professional EDA for everyone!
 * Copyright (C) 2013 LibrePCB Developers, see AUTHORS.md for contributors.
 * https://librepcb.org/
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef LIBREPCB_CORE_TRANSFORM_H
#define LIBREPCB_CORE_TRANSFORM_H
 
/*******************************************************************************
 *  Includes
 ******************************************************************************/
#include "../geometry/path.h"
#include "../types/angle.h"
#include "../types/point.h"
 
#include <QtCore>
 
/*******************************************************************************
 *  Namespace / Forward Declarations
 ******************************************************************************/
namespace librepcb {
 
class Layer;
 
/*******************************************************************************
 *  Class Transform
 ******************************************************************************/
 
class Transform {
public:
  // Constructors / Destructor
 
  Transform(const Point& position = Point(0, 0),
            const Angle& rotation = Angle(0), bool mirrored = false) noexcept
    : mPosition(position), mRotation(rotation), mMirrored(mirrored) {}
 
  template <typename T>
  explicit Transform(const T& obj)
    : mPosition(obj.getPosition()),
      mRotation(obj.getRotation()),
      mMirrored(obj.getMirrored()) {}
 
  Transform(const Transform& other) noexcept
    : mPosition(other.mPosition),
      mRotation(other.mRotation),
      mMirrored(other.mMirrored) {}
 
  ~Transform() noexcept {}
 
  // Getters
  const Point& getPosition() const noexcept { return mPosition; }
  const Angle& getRotation() const noexcept { return mRotation; }
  bool getMirrored() const noexcept { return mMirrored; }
 
  // Setters
  void setPosition(const Point& position) noexcept { mPosition = position; }
  void setRotation(const Angle& rotation) noexcept { mRotation = rotation; }
  void setMirrored(bool mirrored) noexcept { mMirrored = mirrored; }
 
  // General Methods
 
  bool map(bool mirror) const noexcept;
 
  Angle mapMirrorable(const Angle& angle) const noexcept;
 
  Angle mapNonMirrorable(const Angle& angle) const noexcept;
 
  Point map(const Point& point) const noexcept;
 
  Path map(const Path& path) const noexcept;
 
  NonEmptyPath map(const NonEmptyPath& path) const noexcept;
 
  const Layer& map(const Layer& layer) const noexcept;
 
  template <typename T>
  T map(const T& container) const noexcept {
    T copy = container;
    for (auto& item : copy) {
      item = map(item);
    }
    return copy;
  }
 
  template <typename T>
  T mapPx(const T& obj) const noexcept {
    QTransform t;
    t.translate(mPosition.toPxQPointF().x(), mPosition.toPxQPointF().y());
    t.rotate(-mRotation.toDeg());
    if (mMirrored) {
      t.scale(-1, 1);
    }
    return t.map(obj);
  }
 
  // Operator Overloadings
  bool operator==(const Transform& rhs) const noexcept {
    return (mPosition == rhs.mPosition) && (mRotation == rhs.mRotation) &&
        (mMirrored == rhs.mMirrored);
  }
  bool operator!=(const Transform& rhs) const noexcept {
    return !(*this == rhs);
  }
  Transform& operator=(const Transform& rhs) noexcept {
    mPosition = rhs.mPosition;
    mRotation = rhs.mRotation;
    mMirrored = rhs.mMirrored;
    return *this;
  }
 
private:  // Data
  Point mPosition;
  Angle mRotation;
  bool mMirrored;
};
 
/*******************************************************************************
 *  End of File
 ******************************************************************************/
 
}  // namespace librepcb
 
#endif