// The MIT License (MIT)
//
// Copyright (C) 2026 Scott Duensing
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.

// radio.h  -- Radio button widget API
#ifndef RADIO_H
#define RADIO_H

#include "../../../libs/kpunch/libdvx/dvxWgt.h"

// Field order mirrors widgetRadio.c's sApi.  `create` must be first
// because the BASIC form runtime invokes widget constructors by
// dereferencing the api pointer as a pointer-to-function-pointer
// (see createWidgetByIface).  If the order is changed here, update
// widgetRadio.c to match.
typedef struct {
    WidgetT *(*create)(WidgetT *parent, const char *text);
    WidgetT *(*group)(WidgetT *parent);
    void     (*groupSetSelected)(WidgetT *w, int32_t idx);
    int32_t  (*getIndex)(const WidgetT *w);
} RadioApiT;

static inline const RadioApiT *dvxRadioApi(void) {
    static const RadioApiT *sApi;
    if (!sApi) { sApi = (const RadioApiT *)wgtGetApi("radio"); }
    return sApi;
}

#define wgtRadioGroup(parent)                dvxRadioApi()->group(parent)
#define wgtRadio(parent, text)               dvxRadioApi()->create(parent, text)
#define wgtRadioGroupSetSelected(w, idx)     dvxRadioApi()->groupSetSelected(w, idx)
#define wgtRadioGetIndex(w)                  dvxRadioApi()->getIndex(w)

#endif // RADIO_H
