Lephisto/src/options.c

/**
 * @file options.c
 *
 * @brief Options menu.
 */

#include <string.h>
#include <SDL/SDL.h>

#include "log.h"
#include "lephisto.h"
#include "input.h"
#include "toolkit.h"
#include "sound.h"
#include "music.h"
#include "lstd.h"
#include "options.h"

#define KEYBINDS_WIDTH   440   /**< Options menu width. */
#define KEYBINDS_HEIGHT  300   /**< Options menu height. */

#define AUDIO_WIDTH      340   /**< Options menu width. */
#define AUDIO_HEIGHT     200   /**< Options menu height. */

#define BUTTON_WIDTH    90    /**< Button width, standard across menus. */
#define BUTTON_HEIGHT   30    /**< Button height, standard across menus. */

/* Extern. */
extern const char* keybindNames[]; /* From input.c */

static const char* modToText(SDLMod mod);
static void menuKeybinds_update(unsigned int wid, char* name);

static void opt_setSFXLevel(unsigned int wid, char* str);
static void opt_setMusicLevel(unsigned int wid, char* str);

/**
 * @brief Opens the keybindings menu.
 */
void opt_menuKeybinds(void) {
  int i, j;
  unsigned int wid;
  char** str;
  SDLKey key;
  KeybindType type;
  SDLMod mod;
  int reverse;

  /* Create the window. */
  wid = window_create("Keybindings", -1, -1, KEYBINDS_WIDTH, KEYBINDS_HEIGHT);
  window_addButton(wid, -20, 20, BUTTON_WIDTH, BUTTON_HEIGHT,
      "btnClose", "Close", window_close);

  /* Text stuff. */
  window_addText(wid, 240, -40, KEYBINDS_WIDTH-260, 30, 1, "txtName",
      NULL, &cDConsole, NULL);
  window_addText(wid, 240, -90,
      KEYBINDS_WIDTH-260, KEYBINDS_HEIGHT-70-60-BUTTON_HEIGHT,
      0, "txtDesc", &gl_smallFont, NULL, NULL);

  /* Create the list. */
  for(i = 0; strcmp(keybindNames[i], "end"); i++);
  str = malloc(sizeof(char*) * i);
  for(j = 0; j < i; j++) {
    str[j] = malloc(sizeof(char) * 64);
    key = input_getKeybind(keybindNames[j], &type, &mod, &reverse);
    switch(type) {
      case KEYBIND_KEYBOARD:
        /* SDL_GetKeyName returns lowercase which is ugly. */
        if(lstd_isalpha(key))
          snprintf(str[j], 64, "%s <%c>", keybindNames[j], lstd_toupper(key));
        else
          snprintf(str[j], 64, "%s <%s>", keybindNames[j], SDL_GetKeyName(key));
        break;
      case KEYBIND_JAXIS:
        snprintf(str[j], 64, "%s <jb%d>", keybindNames[j], key);
        break;
      case KEYBIND_JBUTTON:
        snprintf(str[j], 64, "%s <ja%d>", keybindNames[j], key);
        break;
      default:
        snprintf(str[j], 64, "%s", keybindNames[j]);
        break;
    }
  }
  window_addList(wid, 20, -40, 200, KEYBINDS_HEIGHT-60, "lstKeybinds",
      str, i, 0, menuKeybinds_update);

  /* Update the list. */
  menuKeybinds_update(wid, NULL);
}

/**
 * @brief Gets the human readable version of mod.
 *    @brief mod Mod to get human readable version from.
 *    @return Human readable version of mod.
 */
static const char* modToText(SDLMod mod) {
  switch(mod) {
    case KMOD_LCTRL:    return "lctrl";
    case KMOD_RCTRL:    return "rctrl";
    case KMOD_LSHIFT:   return "lshift";
    case KMOD_RSHIFT:   return "rshift";
    case KMOD_LALT:     return "lalt";
    case KMOD_RALT:     return "ralt";
    case KMOD_LMETA:    return "lmeta";
    case KMOD_RMETA:    return "rmeta";
    case KMOD_ALL:      return "any";
    default:            return "unknown";
  }
}

/**
 * @brief Updates the keybindings menu.
 *    @param wid Window to update.
 *    @param name Unused.
 */
static void menuKeybinds_update(unsigned int wid, char* name) {
  (void) name;
  int i;
  char* selected,  keybind[32];
  const char* desc;

  SDLKey key;
  KeybindType type;
  SDLMod mod;
  int reverse;
  char buf[1024];
  char bind[32];

  /* Get the keybind. */
  selected = toolkit_getList(wid, "lstKeybinds");

  /* Remove the axcess. */
  for(i = 0; (selected[i] != '\0') && (selected[i] != ' '); i++)
    keybind[i] = selected[i];
  keybind[i] = '\0';
  window_modifyText(wid, "txtName", keybind);

  /* Get information. */
  desc = input_getKeybindDescription(keybind);
  key = input_getKeybind(keybind, &type, &mod, &reverse);

  /* Create the text. */
  switch(type) {
    case KEYBIND_NULL:
      snprintf(bind, 64, "Not bound");
      break;
    case KEYBIND_KEYBOARD:
      /* SDL_GetKeyName returns lowercase which is ugly. */
      if(lstd_isalpha(key))
        snprintf(bind, 32, "keyboard:   %s%s%c",
            (mod != KMOD_NONE) ? modToText(mod) : "",
            (mod != KMOD_NONE) ? " + " : "",
            lstd_toupper(key));
      else
        snprintf(bind, 32, "keyboard:   %s%s%s",
            (mod != KMOD_NONE) ? modToText(mod) : "",
            (mod != KMOD_NONE) ? " + " : "",
            SDL_GetKeyName(key));
      break;
    case KEYBIND_JAXIS:
      snprintf(bind, 64, "joy axis:   <%d>%s", key, (reverse) ? " rev" : "");
      break;
    case KEYBIND_JBUTTON:
      snprintf(bind, 64, "joy button:   <%d>", key);
      break;
  }

  /* Update text. */
  snprintf(buf, 1024, "%s\n\n%s\n", desc, bind);
  window_modifyText(wid, "txtDesc", buf);
}

/**
 * @brief Callback to set the sound level.
 *    @param wid Window calling the callback.
 *    @param str Name of the widget calling the callback.
 */
static void opt_setSFXLevel(unsigned int wid, char* str) {
  double vol;
  vol = window_getFaderValue(wid, str);
  sound_volume(vol);
}

/**
 * @brief Callback to set the music level.
 *    @param wid Window calling the callback.
 *    @param str Name of the widget calling the callback.
 */
static void opt_setMusicLevel(unsigned int wid, char* str) {
  double vol;
  vol = window_getFaderValue(wid, str);
  music_volume(vol);
}

/**
 * @brief Opens the audio settings menu.
 */
void opt_menuAudio(void) {
  unsigned int wid;

  /* Create the window. */
  wid = window_create("Audio", -1, -1, AUDIO_WIDTH, AUDIO_HEIGHT);

  /* Sound fader. */
  if(!sound_disabled) {
    window_addFader(wid, 20, -40, 160, 20, "fadSound", 0., 1.,
        sound_defVolume, opt_setSFXLevel);
    window_addText(wid, 200, -40, AUDIO_WIDTH-220, 20, 1, "txtSound",
        NULL, NULL, "Sound Volume");
  } else
    window_addText(wid, 200, -40, AUDIO_WIDTH-220, 20, 1, "txtSound",
        NULL, NULL, "Sound Disabled");

  /* Music fader. */
  if(!music_disabled) {
    window_addFader(wid, 20, -80, 160, 20, "fadMusic", 0., 1.,
        music_defVolume, opt_setMusicLevel);
    window_addText(wid, 200, -80, AUDIO_WIDTH-220, 20, 1, "txtMusic",
        NULL, NULL, "Music Volume");
  } else
    window_addText(wid, 200, -80, AUDIO_WIDTH-220, 20, 1, "txtMusic",
        NULL, NULL, "Music Disabled");

  /* Close button. */
  window_addButton(wid, -20, 20, BUTTON_WIDTH, BUTTON_HEIGHT,
      "btnClose", "Close", window_close);
}