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 /*
     SPDX-FileCopyrightText: 2005, 2006 Pino Toscano <toscano.pino@tiscali.it>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef KALZIUMSCHEMETYPE_H
 #define KALZIUMSCHEMETYPE_H
 
 class KalziumSchemeType;
 
 #include "kalziumgradienttype.h"
 
 #include <config-kalzium.h>
 
 #include <QBrush>
 #include <QByteArray>
 #include <QColor>
 #include <QPair>
 #include <QRect>
 
 using legendPair = QPair<QString, QColor>;
 
 /**
  * Factory for KalziumSchemeType classes.
  *
  * @author Pino Toscano
  */
 class KalziumSchemeTypeFactory
 {
 public:
     /**
      * Get the instance of this factory.
      */
     static KalziumSchemeTypeFactory *instance();
 
     /**
      * Returns the KalziumSchemeType with the @p id specified.
      * It will gives 0 if none found.
      */
     KalziumSchemeType *build(int id) const;
     /**
      * Returns the KalziumSchemeType whose name is the @p id
      * specified.
      * It will gives 0 if none found.
      */
     KalziumSchemeType *build(const QByteArray &id) const;
 
     /**
      * Returns a list with the names of the schemes we support.
      */
     QStringList schemes() const;
 
 private:
     KalziumSchemeTypeFactory();
     QList<KalziumSchemeType *> m_schemes;
 };
 
 /**
  * This is the base class representing a colour scheme.
  *
  * @author Pino Toscano
  */
 class KalziumSchemeType
 {
 public:
     /**
      * Get its instance.
      */
     static KalziumSchemeType *instance();
 
     virtual ~KalziumSchemeType();
 
     /**
      * Returns the ID of this scheme.
      * Mainly used when saving/loading.
      */
     virtual QByteArray name() const = 0;
     /**
      * Returns the description of this scheme.
      * Used in all the visible places.
      */
     virtual QString description() const = 0;
 
     /**
      * Returns the brush with which the element with number
      * @p el should be painted.
      *
      * @param el Element number
      * @param elrect is the rect designed for the element
      *
      * @return A brush for painting in @p elrect
      */
     virtual QBrush elementBrush(int el) const = 0;
     /**
      * Returns the color which will be used to draw the texts for
      * the element with atomic number @p el.
      */
     virtual QColor textColor(int el) const = 0;
 
     /**
      * Returns a list with the legend of the current scheme.
      */
     virtual QList<legendPair> legendItems() const = 0;
 
 protected:
     KalziumSchemeType();
 };
 
 /**
  * Class representing the all-one-colour scheme.
  *
  * @author Pino Toscano
  */
 class KalziumMonoColorSchemeType : public KalziumSchemeType
 {
 public:
     static KalziumMonoColorSchemeType *instance();
 
     QByteArray name() const override;
     QString description() const override;
 
     QBrush elementBrush(int el) const override;
     QColor textColor(int el) const override;
 
     QList<legendPair> legendItems() const override;
 
 private:
     KalziumMonoColorSchemeType();
 };
 
 /**
  * The scheme by element block.
  *
  * @author Pino Toscano
  */
 class KalziumBlocksSchemeType : public KalziumSchemeType
 {
 public:
     static KalziumBlocksSchemeType *instance();
 
     QByteArray name() const override;
     QString description() const override;
 
     QBrush elementBrush(int el) const override;
     QColor textColor(int el) const override;
 
     QList<legendPair> legendItems() const override;
 
 private:
     KalziumBlocksSchemeType();
 };
 
 /**
  * The scheme for iconic representation.
  *
  * @author Carsten Niehaus
  */
 class KalziumIconicSchemeType : public KalziumSchemeType
 {
 public:
     static KalziumIconicSchemeType *instance();
 
     QByteArray name() const override;
     QString description() const override;
 
     QBrush elementBrush(int el) const override;
     QColor textColor(int el) const override;
 
     QList<legendPair> legendItems() const override;
 
 private:
     KalziumIconicSchemeType();
 };
 
 /**
  * The scheme for family representation.
  *
  * @author Carsten Niehaus
  */
 class KalziumFamilySchemeType : public KalziumSchemeType
 {
 public:
     static KalziumFamilySchemeType *instance();
 
     QByteArray name() const override;
     QString description() const override;
 
     QBrush elementBrush(int el) const override;
     QColor textColor(int el) const override;
 
     QList<legendPair> legendItems() const override;
 
 private:
     KalziumFamilySchemeType();
 };
 
 /**
  * The scheme for groups representation.
  *
  * @author Carsten Niehaus
  */
 class KalziumGroupsSchemeType : public KalziumSchemeType
 {
 public:
     static KalziumGroupsSchemeType *instance();
 
     QByteArray name() const override;
     QString description() const override;
 
     QBrush elementBrush(int el) const override;
     QColor textColor(int el) const override;
 
     QList<legendPair> legendItems() const override;
 
 private:
     KalziumGroupsSchemeType();
 };
 
 #ifdef HAVE_OPENBABEL
 /**
  * The scheme for color
  *
  * @author Etienne Rebetez
  */
 class KalziumColorSchemeType : public KalziumSchemeType
 {
 public:
     static KalziumColorSchemeType *instance();
 
     QByteArray name() const override;
     QString description() const override;
 
     QBrush elementBrush(int el) const override;
     QColor textColor(int el) const override;
 
     QList<legendPair> legendItems() const override;
 
 private:
     KalziumColorSchemeType();
 };
 #endif
 
 // X /**
 // X  * The scheme for the crystal structures.
 // X  *
 // X  * @author Carsten Niehaus
 // X  */
 // X class KalziumCrystalSchemeType : public KalziumSchemeType
 // X {
 // X     public:
 // X         static KalziumCrystalSchemeType* instance();
 // X
 // X         QByteArray name() const;
 // X         QString description() const;
 // X
 // X         QBrush elementBrush(int el, const QRect& elrect) const;
 // X         QColor textColor(int el) const;
 // X
 // X         QList<legendPair> legendItems() const;
 // X
 // X     private:
 // X         KalziumCrystalSchemeType();
 // X };
 
 // X /**
 // X  * @author Carsten Niehaus
 // X  */
 // X class KalziumDiscoverymapSchemeType : public KalziumSchemeType
 // X {
 // X     public:
 // X         static KalziumDiscoverymapSchemeType* instance();
 // X
 // X         QByteArray name() const;
 // X         QString description() const;
 // X
 // X         QBrush elementBrush(int el, const QRect& elrect) const;
 // X         QColor textColor(int el) const;
 // X
 // X         QList<legendPair> legendItems() const;
 // X
 // X     private:
 // X         KalziumDiscoverymapSchemeType();
 // X };
 
 #endif // KALZIUMSCHEMETYPE_H