Palette.h

/*
 *  SPDX-FileCopyrightText: 2017 Wolthera van Hövell tot Westerflier <griffinvalley@gmail.com>
 *
 *  SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
#ifndef LIBKIS_PALETTE_H
#define LIBKIS_PALETTE_H
 
#include <QObject>
#include <QList>
 
#include "kritalibkis_export.h"
#include "libkis.h"
#include "Resource.h"
#include "KoColorSet.h"
#include <Swatch.h>
 
class ManagedColor;
 
 
/**
 * @brief The Palette class
 * Palette is a resource object that stores organised color data.
 * It's purpose is to allow artists to save colors and store them.
 *
 * An example for printing all the palettes and the entries:
 *
 * @code
import sys
from krita import *
 
resources = Application.resources("palette")
 
for (k, v) in resources.items():
    print(k)
    palette = Palette(v)
    for x in range(palette.numberOfEntries()):
        entry = palette.colorSetEntryByIndex(x)
        print(x, entry.name(), entry.id(), entry.spotColor())
 * @endcode
 */
 
class KRITALIBKIS_EXPORT Palette : public QObject
{
    Q_OBJECT
    Q_DISABLE_COPY(Palette)
 
public:
    explicit Palette(Resource *resource, QObject *parent = 0);
    ~Palette() override;
 
    bool operator==(const Palette &other) const;
    bool operator!=(const Palette &other) const;
 
public Q_SLOTS:
 
    /**
     * @brief number of filled colors (swatches) in palette
     * NOTE: same as `colorsCountTotal()`
     *
     * @return total number of colors
     */
    int numberOfEntries() const;
 
    /**
     * @brief Palettes are defined in grids.
     * The number of column define grid width.
     * The number of rows will depend of columns and total number of entries.
     *
     * @return the number of columns this palette is set to use.
     */
    int columnCount();
    /**
     * @brief Palettes are defined in grids.
     * The number of column define grid width, this value can be defined.
     * The number of rows will depend of columns and total number of entries.
     *
     * @param columns Set the amount of columns this palette should use.
     */
    void setColumnCount(int columns);
 
    /**
     * @brief The number of rows in the palette grid.
     * If the palette has groups, the row count is defined by the groups' row count.
     * Otherwise, it's determined by the number of columns and entries.
     * @return the number of rows this palette has.
     */
    int rowCount();
 
    /**
     * @brief The number of rows defined in the given group.
     * @param name of the group to check.
     * @return the number of rows this group is set to use.
     */
    int rowCountGroup(QString name);
 
    /**
     * @brief Set the number of rows defined in the given group.
     * @param rows the amount of rows this group should use.
     * @param name of the group to modify.
     */
    void setRowCountGroup(int rows, QString name);
 
    /**
     * @brief the comment or description associated with the palette.
     *
     * @return A string for which value contains the comment/description of palette.
     */
    QString comment();
 
    /**
     * @brief the comment or description associated with the palette.
     *
     * @param comment set the comment or description associated with the palette.
     */
    void setComment(QString comment);
 
    /**
     * @brief Palette content can be organized in groups.
     *
     * @return The list of group names (list of string). This list follow the order the groups are defined in palette.
     */
    QStringList groupNames() const;
 
    /**
     * @brief Palette content can be organized in groups.
     * This method allows to add a new group in palette.
     *
     * @param name The name of the new group to add.
     */
    void addGroup(QString name);
 
    /**
     * @brief Palette content can be organized in groups.
     * This method allows to remove an existing group from palette.
     *
     * @param name The name of the group to remove.
     * @param keepColors whether or not to delete all the colors inside, or to move them to the default group.
     */
    void removeGroup(QString name, bool keepColors = true);
 
    /**
     * @brief number of filled colors (swatches) in palette
     * NOTE: same as `numberOfEntries()`
     *
     * @return total number of colors
     */
    int colorsCountTotal();
 
    /**
     * @brief colorsCountGroup
     * @param name of the group to check. Empty is the default group.
     * @return the amount of filled colors within that group.
     */
     int colorsCountGroup(QString name);
 
    /**
     * @brief number of slots for swatches in palette
     * This includes any empty slots not filled by a color.
     *
     * @return total number of slots
     */
    int slotCount();
 
    /**
     * @brief number of slots for swatches in group
     * This includes any empty slots not filled by a color.
     *
     * @param name of the group to check. Empty is the default group.
     * @return number of slots in group
     */
    int slotCountGroup(QString name);
 
    /**
     * @brief colorSetEntryByIndex
     * get the colorsetEntry from the global index.
     *
     * DEPRECATED: use `entryByIndex()` instead
     *
     * @param index the global index
     * @return the colorset entry
     */
    Q_DECL_DEPRECATED Swatch *colorSetEntryByIndex(int index);
 
    /**
     * @brief get color (swatch) from the global index.
     *
     * @param index the global index
     * @return The Swatch color for given index.
     */
    Swatch *entryByIndex(int index);
 
    /**
     * @brief colorSetEntryFromGroup
     *
     * DEPRECATED: use `entryByIndexFromGroup()` instead
     *
     * @param index index in the group.
     * @param groupName the name of the group to get the color from.
     * @return the colorsetentry.
     */
    Q_DECL_DEPRECATED Swatch *colorSetEntryFromGroup(int index, const QString &groupName);
 
    /**
     * @brief get color (swatch) from the given group index.
     *
     * @param index index in the group.
     * @param groupName the name of the group to get the color from.
     * @return The Swatch color for given index within given group name.
     */
    Swatch *entryByIndexFromGroup(int index, const QString &groupName);
 
    /**
     * @brief add a color entry to a group.
     * Color is appended to the end.
     *
     * @param entry the entry
     * @param groupName the name of the group to add to.
     */
    void addEntry(Swatch entry, QString groupName = QString());
 
    /**
     * @brief Remove the color entry at the given index in this palette.
     *
     * @param index index in this palette.
     */
     void removeEntry(int index);
 
    /**
     * @brief Remove the color entry at the given index in the given group.
     *
     * @param index index in the group.
     * @param groupName the name of the group to remove the entry from.
     */
    void removeEntryFromGroup(int index, const QString &groupName);
 
    /**
     * @brief changeGroupName
     * change the group name.
     *
     * DEPRECATED: use `renameGroup()` instead
     *
     * @param oldGroupName the old groupname to change.
     * @param newGroupName the new name to change it into.
     * @return whether successful. Reasons for failure include not knowing have oldGroupName
     */
    Q_DECL_DEPRECATED void changeGroupName(QString oldGroupName, QString newGroupName);
 
    /**
     * @brief rename a group
     *
     * @param oldGroupName the old groupname to change.
     * @param newGroupName the new name to change it into.
     */
    void renameGroup(QString oldGroupName, QString newGroupName);
 
    /**
     * @brief Move the group `groupName` to position before group `groupNameInsertBefore`.
     *
     * @param groupName group to move.
     * @param groupNameInsertBefore reference group for which `groupName` have to be moved before.
     */
    void moveGroup(const QString &groupName, const QString &groupNameInsertBefore = QString());
 
    /**
     * @brief save the palette
     *
     * WARNING: this method does nothing and need to be implemented!
     *
     * @return always False
     */
    bool save();
 
private:
    friend class PaletteView;
    struct Private;
    Private *const d;
 
    /**
     * @brief colorSet
     * @return gives a KoColorSet object back
     */
    KoColorSetSP colorSet();
 
};
 
#endif // LIBKIS_PALETTE_H