colorizer.h

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/*
 * SPDX-FileCopyrightText: 2022 Louis Moureaux <m_louis30@yahoo.com>
 *
 * SPDX-License-Identifier: GPLv3-or-later
 */
 
#pragma once
 
#include <QBitmap>
#include <QColor>
#include <QPixmap>
 
#include <map>
 
namespace freeciv {
 
class colorizer : public QObject {
  Q_OBJECT
 
public:
  explicit colorizer(const QPixmap &base, int hue_to_replace,
                     QObject *parent = nullptr);
  virtual ~colorizer() = default;
 
  QPixmap base() const { return m_base; }
 
  const QPixmap *pixmap(const QColor &color) const;
 
private:
  QPixmap m_base;
  QImage m_base_image;
  int m_hue_to_replace;
  mutable std::map<QRgb, QPixmap> m_cache;
};
 
} // namespace freeciv