/*
 * file mi_button.c -  buttons for menu
 *
 * $Id: mi_button.c,v 1.3 2004/05/14 10:00:35 alfie Exp $
 * 
 * Program XBLAST 
 * (C) by Oliver Vogel (e-mail: m.vogel@ndh.net)
 *
 * This program 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; or (at your option)
 * any later version
 *
 * This program is distributed in the hope that it will be entertaining,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILTY 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 this program; if not, write to the Free Software Foundation, Inc.
 * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#include "mi_button.h"

#include "mi_map.h"
#include "gui.h"
/*
 * local macros
 */
/* text sprite flags */
#define FF_H_BUTTON_FOCUS    (FF_Large  | FF_Black | FF_Center   | FF_Outlined )
#define FF_H_BUTTON_NO_FOCUS (FF_Large  | FF_White | FF_Center )
#define FF_V_BUTTON_FOCUS    (FF_Medium | FF_Black | FF_Vertical | FF_Outlined)
#define FF_V_BUTTON_NO_FOCUS (FF_Medium | FF_White | FF_Vertical)

/*
 * local types
 */
typedef struct {
  XBMenuItem  item;
  const char *text;
  Sprite     *sprite;
  Sprite     *iconSprite;
  XBBool      horizontal;
  MIC_button  func;
  void       *funcData;
} XBMenuButtonItem;

/*
 * local variables
 */
static MIC_button  nextExec     = NULL;
static void       *nextExecData = NULL;

/*
 * determine current text flags
 */
static void
SetTextFlags (XBMenuButtonItem *button)
{
  assert (button != NULL);
  assert (button->sprite != NULL);
  if (button->horizontal) {
    if (button->item.flags & MIF_FOCUS) {
      SetSpriteAnime (button->sprite, FF_Large | FF_Black | FF_Center | FF_Outlined);
    } else if (button->item.flags & MIF_DEACTIVATED) {
      SetSpriteAnime (button->sprite, FF_Large | FF_Black | FF_Center);
    } else {
      SetSpriteAnime (button->sprite, FF_Large | FF_White | FF_Center);
    }
  } else {
    if (button->item.flags & MIF_FOCUS) {
      SetSpriteAnime (button->sprite, FF_Medium | FF_Black | FF_Vertical | FF_Outlined);
    } else if (button->item.flags & MIF_DEACTIVATED) {
      SetSpriteAnime (button->sprite, FF_Medium | FF_Black | FF_Vertical);
    } else {
      SetSpriteAnime (button->sprite, FF_Medium | FF_White | FF_Vertical);
    }
  }
} /* ButtonTextFlags */

/*
 * button has changed activation
 */
void
MenuActivateButton (XBMenuItem *ptr, XBBool flag)
{
  SetTextFlags ((XBMenuButtonItem *) ptr);
} /* MenuActivateButton */

/*
 * a horizontal button receives the focus 
 */
static void
MenuButtonFocus (XBMenuItem *ptr, XBBool flag)
{
  SetTextFlags ((XBMenuButtonItem *) ptr);
} /* MenuHButtonFocus */

/*
 * a button is selected
 */
static void
MenuButtonSelect (XBMenuItem *ptr)
{
  XBMenuButtonItem *button = (XBMenuButtonItem *) ptr;

  assert (ptr != NULL);
  nextExec     = button->func;
  nextExecData = button->funcData;  
} /* MenuButtonSelect */

/*
 * button was selected by mouse
 */
static void
MenuButtonMouse (XBMenuItem *ptr, XBEventCode code)
{
  if (code == XBE_MOUSE_1) {
    MenuButtonSelect (ptr);
  }
} /* MenuButtonMouse */

/*
 * 
 */
XBMenuItem *
MenuCreateHButton (int x, int y, int w, const char *text, MIC_button func, void *funcData)
{
  /* create item */
  XBMenuButtonItem *button = calloc (1, sizeof (XBMenuButtonItem) ); 
  assert (button != NULL);
  MenuSetItem (&button->item, MIT_Button, x, y, w, CELL_H, MenuButtonFocus, MenuButtonSelect, MenuButtonMouse, NULL);
  /* set item specific values */
  button->text       = text;
  button->sprite     = CreateTextSprite (text, (x + 1) * BASE_X, (y + 1) * BASE_Y, (w - 2) * BASE_X, (CELL_H - 2) *BASE_Y,
					 FF_H_BUTTON_NO_FOCUS, SPM_MAPPED);
  button->func       = func;
  button->funcData   = funcData;
  button->horizontal = XBTrue;
  /* graphics */
  MenuAddLargeFrame ((x - CELL_W/2) / CELL_W, (x + w + CELL_W/2 - 1) / CELL_W, y / CELL_H);
  /* --- */
  return &button->item;
} /* CreateMenuButton */

/*
 * 
 */
XBMenuItem *
MenuCreateVButton (int x, int y, int h, const char *text, MIC_button func, void *funcData)
{
  /* create item */
  XBMenuButtonItem *button = calloc (1, sizeof (XBMenuButtonItem) ); 
  assert (button != NULL);
  MenuSetItem (&button->item, MIT_Button, x, y, CELL_W, h, MenuButtonFocus, MenuButtonSelect, MenuButtonMouse, NULL);
  button->text       = text;
  button->sprite     = CreateTextSprite (text, (x + 1) * BASE_X, (y + 1) * BASE_Y, (CELL_W - 2) * BASE_X, (h - 2) * BASE_Y,
				       FF_V_BUTTON_NO_FOCUS, SPM_MAPPED);
  button->func       = func;
  button->funcData   = funcData;
  button->horizontal = XBFalse;
  /* graphics */
  MenuAddVerticalFrame (x / CELL_W, y / CELL_H, (y + h - 1) / CELL_W);
  /* --- */
  return &button->item;
} /* CreateMenuButton */

/*
 * delete a button 
 */
void
MenuDeleteButton (XBMenuItem *item)
{
  XBMenuButtonItem *button = (XBMenuButtonItem *) item;

  assert (button->sprite != NULL);
  DeleteSprite (button->sprite);
  if (NULL != button->iconSprite) {
    DeleteSprite (button->iconSprite);
  }
} /* DeleteButtonItem */

/*
 * button is default button
 */
void
MenuSetButtonIcon (XBMenuItem *item, IconSpriteAnimation anime)
{
  XBMenuButtonItem *button = (XBMenuButtonItem *) item;

  assert (button != NULL);
  assert (button->item.type == MIT_Button);
  /* create sprite if needed */
  assert (button->iconSprite == NULL);
  button->iconSprite = CreateIconSprite ((button->item.x + 1) *BASE_X, button->item.y * BASE_Y, anime, SPM_MAPPED);
  assert (NULL != button->iconSprite);
} /* MenuSetButtonIcon */

/*
 * exec function of button
 */
XBBool
MenuExecButton (void)
{
  XBBool result = XBFalse;

  if (NULL != nextExec) {
    result = (*nextExec) (nextExecData);
    nextExec     = NULL;
    nextExecData = NULL;
  }
  return result;
}

/*
 * set next exec to external function 
 */
void
MenuButtonSetNextExec (MIC_button func, void *data)
{
  nextExec     = func;
  nextExecData = data;
} /* MenuButtonSetNextExec */

/*
 * end of file mi_button.c
 */