CThemeColorCollection.h

/*
╔══════════════════════════════════════════════════════════════════════════════╗
║                       SIMPLY POWERFUL TOOLKIT (SPTK)                         ║
╟──────────────────────────────────────────────────────────────────────────────╢
║  copyright            © 1999-2022 Alexey Parshin. All rights reserved.       ║
║  email                alexeyp@gmail.com                                      ║
╚══════════════════════════════════════════════════════════════════════════════╝
┌──────────────────────────────────────────────────────────────────────────────┐
│   This library is free software; you can redistribute it and/or modify it    │
│   under the terms of the GNU Library General Public License as published by  │
│   the Free Software Foundation; either version 2 of the License, or (at your │
│   option) any later version.                                                 │
│                                                                              │
│   This library 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 Library   │
│   General Public License for more details.                                   │
│                                                                              │
│   You should have received a copy of the GNU Library General Public License  │
│   along with this library; if not, write to the Free Software Foundation,    │
│   Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.               │
│                                                                              │
│   Please report all bugs and problems to alexeyp@gmail.com.                  │
└──────────────────────────────────────────────────────────────────────────────┘
*/
 
#pragma once
 
#include <FL/Fl.H>
#include <FL/Enumerations.H>
#include <sptk5/xdoc/Node.h>
#include <sptk5/gui/CThemeImageState.h>
#include <map>
#include <string>
#include <sptk5/xdoc/Document.h>
 
namespace sptk {
 
enum CThemeColorIndex
{
    THM_FOREGROUND_COLOR,
 
    THM_BACKGROUND_COLOR,
 
    THM_BASE_COLOR,
 
    THM_TEXT_COLOR
 
};
 
#define THM_MAX_COLOR_INDEX 4
 
enum CThemeColorState
{
    THM_COLOR_UNDEFINED = -1,
 
    THM_COLOR_NORMAL = 0,
 
    THM_COLOR_PRELIGHT = 1,
 
    THM_COLOR_SELECTED = 2,
 
    THM_COLOR_ACTIVE = 3,
 
    THM_COLOR_INSENSITIVE = 4
 
};
 
#define THM_MAX_COLOR_STATE 5
 
using gtk_color_function = Fl_Color (*)(const String& expression);
 
class SP_EXPORT CThemeColorCollection
{
    static std::map<String, gtk_color_function>* m_gtkColorFunctionMap;
    static std::map<String, Fl_Color> m_colorMap;
    Fl_Color m_colors[THM_MAX_COLOR_INDEX][MAX_IMAGE_STATES];
 
    static Fl_Color gtkColorFunction(const String& expression);
 
    void loadColor(const xdoc::SNode& colorNode, CThemeColorIndex colorIndex);
 
    void loadColorMap(xdoc::Document& gtkTheme, const String& colorMapXPath);
 
    static Fl_Color passby(const String& expression);
 
    static Fl_Color lighter(const String& expression);
 
    static Fl_Color darker(const String& expression);
 
    static Fl_Color shade(const String& expression);
 
    static Fl_Color mix(const String& expression);
 
public:
    CThemeColorCollection() noexcept;
 
    void loadFromSptkTheme(xdoc::Document& gtkTheme);
 
    void loadFromGtkTheme(xdoc::Document& gtkTheme);
 
    Fl_Color color(CThemeColorIndex colorIndex, CThemeColorState state) const
    {
        return m_colors[colorIndex][state];
    }
 
    Fl_Color fgColor(CThemeColorState state) const
    {
        return m_colors[THM_FOREGROUND_COLOR][state];
    }
 
    Fl_Color bgColor(CThemeColorState state) const
    {
        return m_colors[THM_BACKGROUND_COLOR][state];
    }
 
    Fl_Color baseColor(CThemeColorState state) const
    {
        return m_colors[THM_BASE_COLOR][state];
    }
 
    Fl_Color textColor(CThemeColorState state) const
    {
        return m_colors[THM_TEXT_COLOR][state];
    }
};
 
}