mirror of
https://github.com/Oibaf66/frodo-wii.git
synced 2024-11-26 21:44:22 +01:00
440 lines
10 KiB
C++
440 lines
10 KiB
C++
/*********************************************************************
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*
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* Copyright (C) 2004,2008, Simon Kagstrom
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*
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* Filename: menu.c
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* Author: Simon Kagstrom <simon.kagstrom@gmail.com>
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* Description: Code for menus (originally for Mophun)
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*
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* $Id$
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*
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********************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#if defined(GEKKO)
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# include <wiiuse/wpad.h>
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#endif
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#include "menu.h"
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#define KEY_UP 1
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#define KEY_DOWN 2
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#define KEY_LEFT 4
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#define KEY_RIGHT 8
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#define KEY_SELECT 16
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#define KEY_ESCAPE 32
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#define KEY_PAGEDOWN 64
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#define KEY_PAGEUP 128
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#define IS_SUBMENU(p_msg) ( (p_msg)[0] == '^' )
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static submenu_t *find_submenu(menu_t *p_menu, int index)
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{
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int i;
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for (i=0; i<p_menu->n_submenus; i++)
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{
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if (p_menu->p_submenus[i].index == index)
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return &p_menu->p_submenus[i];
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}
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return NULL;
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}
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static void print_font(SDL_Surface *screen, TTF_Font *font, int r, int g, int b,
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int x, int y, char *msg)
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{
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SDL_Surface *font_surf;
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SDL_Rect dst = {x, y, 0, 0};
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SDL_Color color = {r, g, b};
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char buf[255];
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unsigned int i;
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memset(buf, 0, sizeof(buf));
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strncpy(buf, msg, 254);
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/* Fixup multi-menu option look */
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for (i = 0; i < strlen(buf) ; i++)
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{
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if (buf[i] == '^' || buf[i] == '|')
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buf[i] = ' ';
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}
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font_surf = TTF_RenderText_Solid(font, buf,
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color);
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if (!font_surf)
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{
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fprintf(stderr, "%s\n", TTF_GetError());
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exit(1);
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}
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SDL_BlitSurface(font_surf, NULL, screen, &dst);
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SDL_FreeSurface(font_surf);
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}
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static void menu_draw(SDL_Surface *screen, menu_t *p_menu)
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{
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int x_start = p_menu->x1 + (p_menu->x2 - p_menu->x1) / 2 - p_menu->text_w / 2;
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int y_start = p_menu->y1 + (p_menu->y2 - p_menu->y1) / 2 - p_menu->text_h / 2;
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int font_height = TTF_FontHeight(p_menu->p_font);
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int line_height = (font_height + font_height / 4);
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int entries_visible = p_menu->y2 / line_height;
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int i;
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if ( p_menu->n_entries * line_height > p_menu->y2 )
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y_start = p_menu->y1;
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if ( p_menu->cur_sel - p_menu->start_entry_visible > entries_visible )
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p_menu->start_entry_visible += p_menu->cur_sel - entries_visible;
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else if ( p_menu->cur_sel < p_menu->start_entry_visible )
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p_menu->start_entry_visible = p_menu->cur_sel;
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for (i = p_menu->start_entry_visible; i < p_menu->n_entries; i++)
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{
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char *msg = p_menu->pp_msgs[i];
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int y = (i - p_menu->start_entry_visible) * line_height;
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if ((p_menu->available_options & (1<<i)) == 0) /* Gray (not available) */
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print_font(screen, p_menu->p_font, 128,128,128, x_start,
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y_start + y, msg);
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else if (p_menu->cur_sel == i) /* Selected - color */
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print_font(screen, p_menu->p_font, 255,255,0, x_start,
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y_start + y, msg);
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else /* Otherwise white */
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print_font(screen, p_menu->p_font, 255,255,255, x_start,
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y_start + y, msg);
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if (IS_SUBMENU(msg))
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{
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submenu_t *p_submenu = find_submenu(p_menu, i);
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int n_pipe = 0;
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int n;
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for (n=0; msg[n] != '\0'; n++)
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{
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/* Underline the selected entry */
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if (msg[n] == '|')
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{
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int16_t n_chars;
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for (n_chars = 1; msg[n+n_chars] && msg[n+n_chars] != '|'; n_chars++);
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n_pipe++;
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if (p_submenu->sel == n_pipe-1)
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{
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SDL_Rect r;
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int w;
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int h;
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if (TTF_SizeText(p_menu->p_font, "X", &w, &h) < 0)
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{
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fprintf(stderr, "%s\n", TTF_GetError());
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exit(1);
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}
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r = (SDL_Rect) { x_start + (n+1) * w-1,
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y_start + (i+1 - p_menu->start_entry_visible) * ((h + h/4)-1),
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(n_chars - 1) * w,
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2 };
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SDL_FillRect(screen, &r, SDL_MapRGB(screen->format, 0, 255, 0));
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break;
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}
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}
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}
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}
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}
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}
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static void select_next(menu_t *p_menu, int dx, int dy)
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{
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int next;
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p_menu->cur_sel = (p_menu->cur_sel + dy) < 0 ? p_menu->n_entries - 1 :
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(p_menu->cur_sel + dy) % p_menu->n_entries;
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next = (p_menu->cur_sel + dy + 1) < 0 ? p_menu->n_entries - 1 :
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(p_menu->cur_sel + dy + 1) % p_menu->n_entries;
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if (p_menu->pp_msgs[p_menu->cur_sel][0] == ' ' ||
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( (p_menu->available_options & (1<<p_menu->cur_sel)) == 0) ||
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IS_SUBMENU(p_menu->pp_msgs[p_menu->cur_sel]) )
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select_next(p_menu, dx, dy);
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/* If the next is a submenu */
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if (dx != 0 &&
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IS_SUBMENU(p_menu->pp_msgs[next]))
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{
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submenu_t *p_submenu = find_submenu(p_menu, next);
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p_submenu->sel = (p_submenu->sel + dx) < 0 ? p_submenu->n_entries - 1 :
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(p_submenu->sel + dx) % p_submenu->n_entries;
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}
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}
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static int is_submenu_title(menu_t *p_menu, int n)
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{
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if (n+1 >= p_menu->n_entries)
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return 0;
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else
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return IS_SUBMENU(p_menu->pp_msgs[n+1]);
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}
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void menu_init(menu_t *p_menu, TTF_Font *p_font, char **pp_msgs,
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int16_t x1, int16_t y1, int16_t x2, int16_t y2)
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{
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int i;
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int j;
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memset(p_menu, 0, sizeof(menu_t));
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p_menu->pp_msgs = pp_msgs;
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p_menu->p_font = p_font;
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p_menu->x1 = x1;
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p_menu->y1 = y1;
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p_menu->x2 = x2;
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p_menu->y2 = y2;
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p_menu->text_w = 0;
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p_menu->n_submenus = 0;
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for (p_menu->n_entries = 0; p_menu->pp_msgs[p_menu->n_entries]; p_menu->n_entries++)
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{
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int text_w_font;
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/* Is this a submenu? */
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if (IS_SUBMENU(p_menu->pp_msgs[p_menu->n_entries]))
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{
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p_menu->n_submenus++;
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continue; /* Length of submenus is unimportant */
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}
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if (TTF_SizeText(p_font, p_menu->pp_msgs[p_menu->n_entries], &text_w_font, NULL) != 0)
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{
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fprintf(stderr, "%s\n", TTF_GetError());
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exit(1);
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}
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if (text_w_font > p_menu->text_w)
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p_menu->text_w = text_w_font;
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}
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if ( !(p_menu->p_submenus = (submenu_t *)malloc(sizeof(submenu_t) * p_menu->n_submenus)) )
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{
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perror("malloc failed!\n");
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exit(1);
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}
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j=0;
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for (i=0; i<p_menu->n_submenus; i++)
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{
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for (; j < p_menu->n_entries; j++)
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{
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if (IS_SUBMENU(p_menu->pp_msgs[j]))
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{
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int n;
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p_menu->p_submenus[i].index = j;
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p_menu->p_submenus[i].sel = 0;
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p_menu->p_submenus[i].n_entries = 0;
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for (n=0; p_menu->pp_msgs[j][n] != '\0'; n++)
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{
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if (p_menu->pp_msgs[j][n] == '|')
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p_menu->p_submenus[i].n_entries++;
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}
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}
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}
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}
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p_menu->text_h = p_menu->n_entries * (TTF_FontHeight(p_font) + TTF_FontHeight(p_font) / 4);
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}
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void menu_fini(menu_t *p_menu)
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{
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free(p_menu->p_submenus);
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}
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static uint32_t wait_key_press(void)
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{
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SDL_Event ev;
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uint32_t keys = 0;
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while (1)
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{
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#if defined(GEKKO)
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Uint32 remote_keys;
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WPAD_ScanPads();
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remote_keys = WPAD_ButtonsDown(WPAD_CHAN_0);
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if (remote_keys & WPAD_BUTTON_DOWN)
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keys |= KEY_RIGHT;
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if (remote_keys & WPAD_BUTTON_UP)
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keys |= KEY_LEFT;
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if (remote_keys & WPAD_BUTTON_LEFT)
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keys |= KEY_DOWN;
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if (remote_keys & WPAD_BUTTON_RIGHT)
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keys |= KEY_UP;
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if (remote_keys & WPAD_BUTTON_PLUS)
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keys |= KEY_PAGEUP;
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if (remote_keys & WPAD_BUTTON_MINUS)
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keys |= KEY_PAGEDOWN;
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if (remote_keys & (WPAD_BUTTON_A | WPAD_BUTTON_2) )
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keys |= KEY_SELECT;
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if (remote_keys & (WPAD_BUTTON_1 | WPAD_BUTTON_HOME) )
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keys |= KEY_ESCAPE;
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#endif
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if (SDL_PollEvent(&ev))
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{
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switch(ev.type)
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{
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case SDL_KEYDOWN:
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switch (ev.key.keysym.sym)
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{
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case SDLK_UP:
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keys |= KEY_UP;
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break;
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case SDLK_DOWN:
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keys |= KEY_DOWN;
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break;
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case SDLK_LEFT:
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keys |= KEY_LEFT;
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break;
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case SDLK_RIGHT:
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keys |= KEY_RIGHT;
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break;
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case SDLK_PAGEDOWN:
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keys |= KEY_PAGEDOWN;
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break;
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case SDLK_PAGEUP:
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keys |= KEY_PAGEUP;
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break;
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case SDLK_RETURN:
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case SDLK_SPACE:
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keys |= KEY_SELECT;
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break;
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case SDLK_ESCAPE:
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keys |= KEY_ESCAPE;
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break;
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default:
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break;
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}
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break;
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case SDL_QUIT:
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exit(0);
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break;
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default:
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break;
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}
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break;
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}
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if (keys != 0)
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return keys;
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SDL_Delay(100);
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}
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return keys;
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}
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int menu_select(SDL_Surface *screen, menu_t *p_menu,
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uint32_t available_options, int *p_submenus)
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{
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int ret = -1;
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p_menu->available_options = available_options;
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while(1)
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{
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uint32_t keys;
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SDL_FillRect(screen, 0, SDL_MapRGB(screen->format, 0, 0, 0));
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menu_draw(screen, p_menu);
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SDL_Flip(screen);
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keys = wait_key_press();
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if (keys & KEY_UP)
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select_next(p_menu, 0, -1);
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else if (keys & KEY_DOWN)
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select_next(p_menu, 0, 1);
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else if (keys & KEY_LEFT)
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select_next(p_menu, -1, 0);
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else if (keys & KEY_RIGHT)
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select_next(p_menu, 1, 0);
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else if (keys & KEY_ESCAPE)
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break;
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else if (keys & KEY_SELECT)
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{
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ret = p_menu->cur_sel;
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int i;
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if (!is_submenu_title(p_menu, ret))
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{
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for (i=0; i<p_menu->n_submenus; i++)
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p_submenus[i] = p_menu->p_submenus[i].sel;
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p_menu->cur_sel = 0;
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}
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break;
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}
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}
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SDL_FillRect(screen, 0, SDL_MapRGB(screen->format, 0, 0, 0));
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return ret;
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}
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#if defined(TEST_MENU)
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char *main_menu[] = {
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"Insert disc",
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"Reset C64",
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"Joystick port",
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"^|1|2",
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" ",
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"Quit",
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NULL,
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};
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int main(int argc, char *argv[])
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{
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SDL_Surface *screen;
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TTF_Font *font;
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const SDL_VideoInfo *info;
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int submenus[1] = {0};
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int selected;
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menu_t menu;
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if (SDL_Init( SDL_INIT_EVERYTHING ) < 0)
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{
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fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError() );
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exit(1);
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}
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if (TTF_Init() < 0)
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{
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fprintf(stderr, "Unable to init TTF: %s\n", TTF_GetError() );
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exit(1);
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}
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atexit(SDL_Quit);
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atexit(TTF_Quit);
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font = TTF_OpenFont("FreeMono.ttf", 20);
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if (!font)
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{
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fprintf(stderr, "Unable to open font: %s\n", TTF_GetError() );
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exit(1);
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}
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info = SDL_GetVideoInfo();
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/* Open a 640x480 display with the optimal color depth */
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screen = SDL_SetVideoMode(640, 480, info->vfmt->BitsPerPixel,
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info->hw_available ? SDL_HWSURFACE : SDL_SWSURFACE);
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menu_init(&menu, font, main_menu, 640 / 3, 480 / 3, 400, 400);
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selected = menu_select(screen, &menu, ~0, submenus);
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printf("Selected: %d:%d\n",
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selected, submenus[0]);
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menu_fini(&menu);
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return 0;
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}
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#endif
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