/* $Id: menubuttons.c,v 1.1 2003/12/24 02:42:05 stpohle Exp $
 * Menuhandling: buttons */

#include "basic.h"
#include "bomberclone.h"
#include "menu.h"
#include "menugui.h"


/* create a button only in the menudatas.. darf all this only when menu_loop
 * is called */
void menu_create_button (char *name, int x, int y, int w, int id) {
	int i = menu_getlastitem(menu.items);
	
	if (i == -1) { /* first entry in the itemslist */
		menu.items = &menuitems[0];
		i = 0;
	}
	else if (i >= MENU_MAXENTRYS) { /* max items reached, ignore new item */
		d_fatal ("menu_create_button: MENU_MAXENTRYS reached. Item Ignored\n");
		return;
	}
	else { /* add new item to the list */
		menuitems[i].next = &menuitems[i+1];
		i++;
	}
	
	menuitems[i].type = MENU_button;
	menuitems[i].pos.w = (1 + (int)((w - menu.buttonimages[0][0]->w - menu.buttonimages[0][2]->w) / menu.buttonimages[0][1]->w)) * menu.buttonimages[0][1]->w + menu.buttonimages[0][0]->w + menu.buttonimages[0][2]->w;	
	if (x != -1)
		menuitems[i].pos.x = x;
	else 
		menuitems[i].pos.x = (menu.oldscreenpos.w - 2 * menu.images[0]->w - menuitems[i].pos.w) / 2;
	menuitems[i].pos.y = y;
	menuitems[i].state = 0;
	menuitems[i].id = id;
	strncpy (menuitems[i].label, name, MENU_TITLELEN);
};


/* draw the menuitem button or bool
 * menuitem->pos.[x|y|w] - Position and X-Size inside the menu
 *           label       - Text of the Button/Bool
 */
void menu_draw_button (_menuitem *mi) {
	int px, py, i;
	SDL_Rect dest;

	if (mi->type != MENU_button && mi->type != MENU_bool)
		return;

	dest.x = mi->pos.x;
	dest.y = mi->pos.y;
	dest.w = mi->pos.w;
	dest.h = menu.buttonimages[0][0]->h;
	menu_draw_background (&dest);

	/* check the focus of the button */
	if (menu.focusvis && mi == menu.focus)
		mi->state = 1;
	else if (mi->type == MENU_bool && (*((int*) mi->ptrdata)) > 0)
		mi->state = 2; // bool
	else 
		mi->state = 0; // button or bool == FALSE

	// draw the left side of the button
	dest.x = MENUOFFSET_X + mi->pos.x;
	dest.y = MENUOFFSET_Y + mi->pos.y;
	dest.w = menu.buttonimages[mi->state][0]->w;
	dest.h = menu.buttonimages[mi->state][0]->h;
	gfx_blit (menu.buttonimages[mi->state][0], NULL, gfx.screen, &dest, 10000);
	// draw the center of the button
	for (i = 0; i < ((mi->pos.w - (menu.buttonimages[mi->state][0]->w + menu.buttonimages[mi->state][2]->w)) / menu.buttonimages[mi->state][1]->w); i++) {
		dest.x = MENUOFFSET_X + mi->pos.x + menu.buttonimages[mi->state][0]->w + (i * menu.buttonimages[mi->state][1]->w);
		dest.y = MENUOFFSET_Y + mi->pos.y;
		dest.w = menu.buttonimages[mi->state][1]->w;
		dest.h = menu.buttonimages[mi->state][1]->h;
		gfx_blit (menu.buttonimages[mi->state][1], NULL, gfx.screen, &dest, 10000);
	}
	// draw the right side of the button
	dest.x = MENUOFFSET_X + mi->pos.x + mi->pos.w - menu.buttonimages[mi->state][2]->w;
	dest.y = MENUOFFSET_Y + mi->pos.y;
	dest.w = menu.buttonimages[mi->state][2]->w;
	dest.h = menu.buttonimages[mi->state][2]->h;
	gfx_blit (menu.buttonimages[mi->state][2], NULL, gfx.screen, &dest, 10000);

	// calculate the center of the button
	px = (mi->pos.w - (strlen (mi->label) * font[MENU_BUTTON_FONTSIZE].size.x)) / 2 + mi->pos.x;
	py = (menu.buttonimages[mi->state][0]->h - font[MENU_BUTTON_FONTSIZE].size.y) / 2 + mi->pos.y;

	if (mi->type == MENU_bool && mi->state == 2) // disabled bool == FALSE
		font_gfxdraw (MENUOFFSET_X + px, MENUOFFSET_Y + py, mi->label, MENU_BUTTON_FONTSIZE, COLOR_black, 10000);
	else
		font_gfxdraw (MENUOFFSET_X + px, MENUOFFSET_Y + py, mi->label, MENU_BUTTON_FONTSIZE, COLOR_yellow, 10000);

};


/* handle the event on the button
 * Return: 1 - if the button was pressed (With Enter) */
int menu_event_button (_menuitem *mi, SDL_Event *event) {
	switch (event->type) {
		case (SDL_KEYDOWN): /* key was pressed */
			if (event->key.keysym.sym == SDLK_LEFT || event->key.keysym.sym == SDLK_UP) 
				menu_focus_prev ();
			else if (event->key.keysym.sym == SDLK_RIGHT || event->key.keysym.sym == SDLK_DOWN) 
				menu_focus_next ();
			else if (event->key.keysym.sym == SDLK_RETURN || event->key.keysym.sym == SDLK_LCTRL || event->key.keysym.sym == SDLK_RCTRL)
				return 1;
			break;
	}
	
	return 0;
};