/* $Id: menuentrys.c,v 1.3 2003/12/28 01:21:43 stpohle Exp $
 * Menuhandling: entry */
 

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


/* save the data into the pointer */
void menu_entry_save (_menuitem *mi) {
	int tmp;
	switch (mi->type) {
		case (MENU_entryint16):
			sscanf (mi->keybi.text, "%d", &tmp);
			*(Sint16*)mi->ptrdata = (Sint16) tmp;
			break;
		case (MENU_entryint32):
			sscanf (mi->keybi.text, "%d", (Sint32*)mi->ptrdata);
			break;
		case (MENU_entrytext):
			strncpy (mi->ptrdata, mi->keybi.text, mi->len);
			break;
		case (MENU_entryfloat):
			sscanf (mi->keybi.text, "%f", (float*)mi->ptrdata);
			break;
	}
};


/* restore the data into the pointer */
void menu_entry_restore (_menuitem *mi) {
	switch (mi->type) {
		case (MENU_entryint16):
			sprintf (mi->keybi.text, "%d", *(Sint16*)mi->ptrdata);
			break;
		case (MENU_entryint32):
			sprintf (mi->keybi.text, "%d", *(Sint32*)mi->ptrdata);
			break;
		case (MENU_entrytext):
			sprintf (mi->keybi.text, "%s", (char*)mi->ptrdata);
			break;
		case (MENU_entryfloat):
			sprintf (mi->keybi.text, "%f", *(float*)mi->ptrdata);
			break;
	}
	mi->keybi.curpos = strlen (mi->keybi.text);
};


/* create a entryimages only in the menudatas.. darf all this only when menu_loop
 * is called */
void menu_create_entry (char *name, int x, int y, int w, void *data, int len, int typ, int id) {
	int i = menu_getlastitem(menu.items);

	if (typ != MENU_entrytext && typ != MENU_entryint16 && typ != MENU_entryint32 && typ != MENU_entryfloat)
		return;
	
	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_entry: MENU_MAXENTRYS reached. Item Ignored\n");
		return;
	}
	else { /* add new item to the list */
		menuitems[i].next = &menuitems[i+1];
		i++;
	}
	
	menuitems[i].type = typ;
	menuitems[i].pos.w = (1 + (int)((w - (strlen (name) * font[MENU_BUTTON_FONTSIZE].size.x) - 8 - menu.entryimages[0][0]->w - menu.entryimages[0][2]->w) / menu.entryimages[0][1]->w)) * menu.entryimages[0][1]->w + menu.entryimages[0][0]->w + menu.entryimages[0][2]->w + (strlen (name) * font[MENU_BUTTON_FONTSIZE].size.x) + 8;
	
	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].len = len;
	menuitems[i].ptrdata = (char *) data;
	menuitems[i].id = id;
	strncpy (menuitems[i].label, name, MENU_TITLELEN);
	
	if (typ == MENU_entrytext)
		keybinput_new (&menuitems[i].keybi, KEYBI_text, len);
	else if (typ == MENU_entryint16)
		keybinput_new (&menuitems[i].keybi, KEYBI_int, len);
	else if (typ == MENU_entryint32)
		keybinput_new (&menuitems[i].keybi, KEYBI_int, len);
	else
		keybinput_new (&menuitems[i].keybi, KEYBI_float, 10);

	menu_entry_restore (&menuitems[i]);
};


/* 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_entry (_menuitem *mi) {
	int px, py, i;
	SDL_Rect dest;

	if (mi->type != MENU_entrytext && mi->type != MENU_entryint16 && mi->type != MENU_entryint32 && mi->type != MENU_entryfloat)
		return;

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

	/* check the focus of the button */
	if (menu.focusvis && mi == menu.focus)
		mi->state = 1;
	else 
		mi->state = 0;

	// draw the left side of the button
	dest.x = MENUOFFSET_X + mi->pos.x + (strlen (mi->label) * font[MENU_BUTTON_FONTSIZE].size.x) + 8;
	dest.y = MENUOFFSET_Y + mi->pos.y;
	dest.w = menu.entryimages[mi->state][0]->w;
	dest.h = menu.entryimages[mi->state][0]->h;
	gfx_blit (menu.entryimages[mi->state][0], NULL, gfx.screen, &dest, 10000);
	/* draw the center of the button
	 * checkt first if there is something wrong */
	if (mi->pos.w < ((strlen (mi->label) * font[MENU_BUTTON_FONTSIZE].size.x) + 8) - (menu.entryimages[mi->state][0]->w + menu.entryimages[mi->state][2]->w))
		d_fatal ("menuentry Error with Element: %s\n", mi->label);
	else 
	for (i = 0; i < ((mi->pos.w - ((strlen (mi->label) * font[MENU_BUTTON_FONTSIZE].size.x) + 8) - (menu.entryimages[mi->state][0]->w + menu.entryimages[mi->state][2]->w)) / menu.entryimages[mi->state][1]->w); i++) {
		dest.x = MENUOFFSET_X + mi->pos.x + (strlen (mi->label) * font[MENU_BUTTON_FONTSIZE].size.x) + 8 + menu.entryimages[mi->state][0]->w + (i * menu.entryimages[mi->state][1]->w);
		dest.y = MENUOFFSET_Y + mi->pos.y;
		dest.w = menu.entryimages[mi->state][1]->w;
		dest.h = menu.entryimages[mi->state][1]->h;
		gfx_blit (menu.entryimages[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.entryimages[mi->state][2]->w;
	dest.y = MENUOFFSET_Y + mi->pos.y;
	dest.w = menu.entryimages[mi->state][2]->w;
	dest.h = menu.entryimages[mi->state][2]->h;
	gfx_blit (menu.entryimages[mi->state][2], NULL, gfx.screen, &dest, 10000);

	// calculate the center of the button
	px = (strlen (mi->label) * font[MENU_BUTTON_FONTSIZE].size.x) + 8 + (mi->pos.w - (strlen (mi->label) * font[MENU_BUTTON_FONTSIZE].size.x) - 8 - (strlen (mi->keybi.text) * font[MENU_BUTTON_FONTSIZE].size.x)) / 2 + mi->pos.x;
	py = (menu.entryimages[mi->state][0]->h - font[MENU_BUTTON_FONTSIZE].size.y) / 2 + mi->pos.y;
	font_gfxdraw (MENUOFFSET_X + px, MENUOFFSET_Y + py, mi->keybi.text, MENU_BUTTON_FONTSIZE, COLOR_yellow, 10000);
	font_gfxdraw (MENUOFFSET_X + mi->pos.x, MENUOFFSET_Y + py, mi->label, MENU_BUTTON_FONTSIZE, COLOR_yellow, 10000);
};


/* handle the event on the button
 * on ESC - Reload Old Data
 * on lose focus - Save Data
 */
int menu_event_entry (_menuitem *mi, SDL_Event *event) {
	switch (event->type) {
		case (SDL_KEYDOWN): /* key was pressed */
			if (event->key.keysym.sym == SDLK_UP) 
				menu_focus_prev ();
			else if (event->key.keysym.sym == SDLK_DOWN) 
				menu_focus_next ();
			else if (event->key.keysym.sym == SDLK_RETURN || event->key.keysym.sym == SDLK_RCTRL || event->key.keysym.sym == SDLK_RCTRL)
				menu_entry_save (mi);
			else if (event->key.keysym.sym == SDLK_ESCAPE)
				menu_entry_restore (mi);
			else {
				keybinput_loop (&mi->keybi, event);
				menu_draw_entry (mi);
			}
			break;
		case (SDL_KEYUP):
			keybinput_loop (&mi->keybi, event);
			menu_draw_entry (mi);
			break;
	}

	return 0;
};