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//

//

//    Copyright 2011 TheSeven

//

//

//    This file is part of emCORE.

//

//    emCORE is free software: you can redistribute it and/or

//    modify it under the terms of the GNU General Public License as

//    published by the Free Software Foundation, either version 2 of the

//    License, or (at your option) any later version.

//

//    emCORE 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 General Public License for more details.

//

//    You should have received a copy of the GNU General Public License along

//    with emCORE.  If not, see <http://www.gnu.org/licenses/>.

//

//

#ifndef __CHOOSER_H__

#define __CHOOSER_H__

#include "emcorelib.h"

#include "libui.h"

enum chooser_result

{

    CHOOSER_RESULT_OK = 0,

    CHOOSER_RESULT_REDRAW,

    CHOOSER_RESULT_FINISHED,

    CHOOSER_RESULT_CANCEL

};

struct chooser_item

{

    const void* user;

    const void* actionparams;

    const void* renderparams;

};

struct chooser_data;

#define CHOOSER_ACTION_HANDLER_VERSION 1

struct chooser_action_handler

{

    int version;

    int (*init)(struct chooser_data* data);

    enum chooser_result (*handleevent)(struct chooser_data* data,

                                       enum button_event event, int which, int value);

    enum chooser_result (*handletick)(struct chooser_data* data);

    int (*stepsperitem)(struct chooser_data* data);

    void (*destroy)(struct chooser_data* data);

};

#define CHOOSER_RENDERER_VERSION 1

struct chooser_renderer

{

    int version;

    int (*init)(struct chooser_data* data);

    enum chooser_result (*render)(struct chooser_data* data);

    const struct chooser_item* (*itematpixel)(struct chooser_data* data, int x, int y);

    void (*destroy)(struct chooser_data* data);

};

#define CHOOSER_INFO_VERSION 1

struct chooser_info

{

    int version;

    const struct chooser_action_handler* actionhandler;

    const void* actionhandlerparams;

    const struct chooser_renderer* renderer;

    const void* rendererparams;

    const void* userparams;

    int tickinterval;

    int itemcount;

    int defaultitem;

    const struct chooser_item items[];

};

struct chooser_data

{

    const struct chooser_info* info;

    struct mutex statemutex;

    struct wakeup eventwakeup;

    bool redrawneeded;

    bool finished;

    bool canceled;

    const struct chooser_item* selected;

    int position;

    void* actionhandlerdata;

    void* rendererdata;

    void* userdata;

};

const struct chooser_item* chooser_run(const struct chooser_info* info);

#endif