/* BSD 3-Clause License
 *
 * Copyright © 2008-2020, Jice and the libtcod contributors.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#include "flatlist.hpp"

#include <math.h>
#include <stdio.h>

FlatList::FlatList(int x, int y, int w, const char** list, const char* label, const char* tip)
    : TextBox(x, y, w, 10, label, NULL, tip),
      value(list),
      list(list),
      onLeftArrow(false),
      onRightArrow(false),
      cbk(NULL),
      data(NULL) {
  valueToText();
  this->w += 2;
}

FlatList::~FlatList() {}

void FlatList::render() {
  w--;
  boxx++;
  TextBox::render();
  boxx--;
  w++;
  con->setDefaultBackground((onLeftArrow) ? backFocus : back);
  con->setDefaultForeground((onLeftArrow) ? foreFocus : fore);
  con->putChar(x + boxx, y, TCOD_CHAR_ARROW_W);
  con->setDefaultBackground((onRightArrow) ? backFocus : back);
  con->setDefaultForeground((onRightArrow) ? foreFocus : fore);
  con->putChar(x + w - 1, y, TCOD_CHAR_ARROW_E);
}

void FlatList::update(TCOD_key_t k) {
  onLeftArrow = onRightArrow = false;
  if (mouse.cx == x + boxx && mouse.cy == y)
    onLeftArrow = true;
  else if (mouse.cx == x + w - 1 && mouse.cy == y)
    onRightArrow = true;
  Widget::update(k);
}

void FlatList::valueToText() { setText(*value); }

void FlatList::textToValue() {
  const char** ptr = list;
  while (*ptr) {
    if (strcmp(txt, *ptr) == 0) {
      value = ptr;
      break;
    }
    ptr++;
  }
}

void FlatList::onButtonClick() {
  const char** oldValue = value;
  if (onLeftArrow) {
    if (value == list) {
      while (*value) {
        value++;
      }
    }
    value--;
  } else if (onRightArrow) {
    value++;
    if (*value == NULL) value = list;
  }
  if (value != oldValue && cbk) {
    valueToText();
    cbk(this, *value, data);
  }
}

void FlatList::setValue(const char* v) {
  const char** ptr = list;
  while (*ptr) {
    if (strcmp(v, *ptr) == 0) {
      value = ptr;
      valueToText();
      break;
    }
    ptr++;
  }
}

void FlatList::setList(const char** l) {
  value = list = l;
  valueToText();
}
