/*
 * Copyright 2010-2013, Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Stefano Ceccherini, stefano.ceccherini@gmail.com
 *              Siarzhuk Zharski, zharik@gmx.li
 */
#ifndef _COLORS_H
#define _COLORS_H


#include <InterfaceDefs.h>
#include <ObjectList.h>


struct ansi_color_scheme {
        rgb_color black;
        rgb_color red;
        rgb_color green;
        rgb_color yellow;
        rgb_color blue;
        rgb_color magenta;
        rgb_color cyan;
        rgb_color white;
        bool operator==(const ansi_color_scheme& color);
};

struct color_scheme {
        const char* name;
        rgb_color text_fore_color;
        rgb_color text_back_color;
        rgb_color cursor_fore_color;
        rgb_color cursor_back_color;
        rgb_color select_fore_color;
        rgb_color select_back_color;
        ansi_color_scheme ansi_colors;
        ansi_color_scheme ansi_colors_h;
        bool operator==(const color_scheme& color);
};

struct FindColorSchemeByName : public UnaryPredicate<const color_scheme> {
        FindColorSchemeByName() : scheme_name("") {}

        FindColorSchemeByName(const char* name)
                : scheme_name(name)
        {
        }

        int operator()(const color_scheme* item) const
        {
                return strcmp(item->name, scheme_name);
        }

        const char*     scheme_name;
};

extern color_scheme gCustomColorScheme;
extern BObjectList<const color_scheme, true> *gColorSchemes;

const uint kANSIColorCount = 16;
const uint kTermColorCount = 256;


// Helper class handling XColorName/rgb:xxx/xxx/xxx -> rgb_color conversions.
// The source of XColorNames is wide available rgb.txt for X11 System.
// It is stored in "XColorsTable" application resource as array of
// "hash <-> rgb_color" pairs. The table is loaded only on demand.
// Name hashes must be sorted to let lookup procedure work properly
class XColorsTable {

        struct _XColorEntry {
                uint32          hash;
                rgb_color       color;
        };

public:
                                                        XColorsTable();
                                                        ~XColorsTable();

        status_t                                LookUpColor(const char* name, rgb_color* color);
private:
        status_t                                _LoadXColorsTable();
        uint32                                  _HashName(const char* name);

        const _XColorEntry*             fTable;
        size_t                                  fCount;
};

extern XColorsTable gXColorsTable;

#endif // _COLORS_H