XSettingsCommon.h

/*
 * $Id: XSettingsCommon.h 2839 2009-09-28 11:36:20Z karijes $
 *
 * Common stuff for XSETTINGS protocol
 * Based on implementation from Owen Tylor, copyright (c) 2001 Red Hat, inc.
 * Copyright (c) 2005-2007 edelib authors
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __EDELIB_XSETTINGSCOMMON_H__
#define __EDELIB_XSETTINGSCOMMON_H__

#include "edelib-global.h"
#include <X11/Xlib.h>

#define XSETTINGS_PAD(n, p) ((n + p - 1) & (~(p - 1)))

EDELIB_NS_BEGIN

enum XSettingsType {
        XSETTINGS_TYPE_INT = 0,      
        XSETTINGS_TYPE_STRING,       
        XSETTINGS_TYPE_COLOR         
};

struct XSettingsColor {
        unsigned short red;
        unsigned short green;
        unsigned short blue;
        unsigned short alpha;
};

struct XSettingsSetting {
        char* name;
        XSettingsType type;

        union {
                int v_int;
                char* v_string;
                XSettingsColor v_color;
        } data;

        unsigned long last_change_serial;
};

struct XSettingsList {
        XSettingsSetting* setting;
        XSettingsList* next;
};

struct XSettingsData {
        Display* display;
        int screen;

        Window manager_win;

        Atom selection_atom;

        Atom manager_atom;

        Atom xsettings_atom;

        XSettingsList* settings;

        unsigned long serial;
};

#ifndef SKIP_DOCS
struct XSettingsBuffer {
        char byte_order;
        int len;
        unsigned char* data;
        unsigned char* pos;
};
#endif

EDELIB_API bool xsettings_list_add(XSettingsList** list, XSettingsSetting* setting);

EDELIB_API bool xsettings_list_remove(XSettingsList** list, const char* name);

EDELIB_API XSettingsSetting* xsettings_list_find(XSettingsList* list, const char* name);

EDELIB_API void xsettings_list_free(XSettingsList* list);



EDELIB_API XSettingsSetting* xsettings_setting_copy(XSettingsSetting* setting);

EDELIB_API void xsettings_setting_free(XSettingsSetting* setting);

EDELIB_API bool xsettings_setting_equal(XSettingsSetting* s1, XSettingsSetting* s2);

EDELIB_API int  xsettings_setting_len(const XSettingsSetting* setting);

EDELIB_API char xsettings_byte_order(void);


EDELIB_API XSettingsList* xsettings_decode(unsigned char* data, /*size_t*/ int len, unsigned long* serial);

EDELIB_API void xsettings_encode(const XSettingsSetting* setting, XSettingsBuffer* buffer);


#ifndef SKIP_DOCS
void xsettings_manager_notify(XSettingsData* data);
void xsettings_manager_set_setting(XSettingsData* data, XSettingsSetting* setting);
void xsettings_manager_delete_setting(XSettingsData* data, const char* name);
#endif

EDELIB_NS_END
#endif