ack, forgot to add file
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6121 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michiel Van Der Kolk
parent
cd040ddd7c
commit
31f215ea39
1 changed files with 303 additions and 0 deletions
303
apps/plugins/rockboy/menu.c
Normal file
303
apps/plugins/rockboy/menu.c
Normal file
|
|
@ -0,0 +1,303 @@
|
|||
/*********************************************************************/
|
||||
/* menu.c - user menu for rockboy */
|
||||
/* */
|
||||
/* Note: this file only exposes one function: do_user_menu(). */
|
||||
/*********************************************************************/
|
||||
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
#include "button.h"
|
||||
#include "rockmacros.h"
|
||||
|
||||
/* load/save state function declarations */
|
||||
static void do_slot_menu(bool is_load);
|
||||
|
||||
#define MENU_CANCEL (-1)
|
||||
static int do_menu(char *title, char **items, size_t num_items, int sel_item);
|
||||
|
||||
/* main menu items */
|
||||
#define MAIN_MENU_TITLE "RockBoy Menu"
|
||||
typedef enum {
|
||||
ITEM_BACK,
|
||||
ITEM_LOAD,
|
||||
ITEM_SAVE,
|
||||
ITEM_OPT,
|
||||
ITEM_QUIT,
|
||||
ITEM_LAST
|
||||
} MainMenuItem;
|
||||
|
||||
/* strings for the main menu */
|
||||
static const char *main_menu[] = {
|
||||
"Back to Game",
|
||||
"Load State...",
|
||||
"Save State...",
|
||||
"Options...",
|
||||
"Quit RockBoy"
|
||||
};
|
||||
|
||||
typedef enum {
|
||||
ITEM_SLOT1,
|
||||
ITEM_SLOT2,
|
||||
ITEM_SLOT3,
|
||||
ITEM_SLOT4,
|
||||
ITEM_SLOT5
|
||||
} SlotMenuItem;
|
||||
|
||||
/* this is evil, but we snprintf() into it later :( */
|
||||
static const char *slot_menu[] = {
|
||||
"1. ",
|
||||
"2. ",
|
||||
"3. ",
|
||||
"4. ",
|
||||
"5. "
|
||||
};
|
||||
|
||||
/*
|
||||
* do_user_menu - create the user menu on the screen.
|
||||
*
|
||||
* Returns USER_MENU_QUIT if the user selected "quit", otherwise
|
||||
* returns zero.
|
||||
*
|
||||
* Note: this is the only non-static function in this file at the
|
||||
* moment. In the future I may turn do_menu/etc into a proper API, in
|
||||
* which case they'll be exposed as well.
|
||||
*
|
||||
*/
|
||||
int do_user_menu(void) {
|
||||
int mi, ret, num_items;
|
||||
bool done = false;
|
||||
|
||||
/* set defaults */
|
||||
ret = 0; /* return value */
|
||||
mi = 0; /* initial menu selection */
|
||||
num_items = sizeof(main_menu) / sizeof(char*);
|
||||
|
||||
/* loop until we should exit menu */
|
||||
while (!done) {
|
||||
/* get item selection */
|
||||
mi = do_menu(MAIN_MENU_TITLE, (char**) main_menu, num_items, mi);
|
||||
|
||||
/* handle selected menu item */
|
||||
switch (mi) {
|
||||
case ITEM_QUIT:
|
||||
ret = USER_MENU_QUIT;
|
||||
case MENU_CANCEL:
|
||||
case ITEM_BACK:
|
||||
done = true;
|
||||
break;
|
||||
case ITEM_LOAD:
|
||||
do_slot_menu(1);
|
||||
break;
|
||||
case ITEM_SAVE:
|
||||
do_slot_menu(0);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* return somethin' */
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* do_load_menu - prompt the user for a memory slot
|
||||
*
|
||||
* TOOD
|
||||
*
|
||||
*/
|
||||
static void do_slot_menu(bool is_load) {
|
||||
int i, mi, ret, num_items;
|
||||
bool done = false;
|
||||
char *title;
|
||||
|
||||
/* set defaults */
|
||||
ret = 0; /* return value */
|
||||
mi = 0; /* initial menu selection */
|
||||
num_items = sizeof(slot_menu) / sizeof(char*);
|
||||
|
||||
/* create menu items */
|
||||
for (i = 0; i < num_items; i++) {
|
||||
/* TODO: get slot info here */
|
||||
snprintf((char*) slot_menu[i], sizeof(slot_menu[i]), "%2d. %s", i + 1, "<empty>");
|
||||
}
|
||||
|
||||
/* set menu title */
|
||||
title = is_load ? "Load State" : "Save State";
|
||||
|
||||
/* loop until we should exit menu */
|
||||
while (!done) {
|
||||
/* get item selection */
|
||||
mi = do_menu(title, (char**) slot_menu, num_items, mi);
|
||||
|
||||
/* handle selected menu item */
|
||||
if (mi == MENU_CANCEL) {
|
||||
done = true;
|
||||
break;
|
||||
} else {
|
||||
if (is_load) {
|
||||
/* TODO: load slot here */
|
||||
} else {
|
||||
/* TODO: save slot here */
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*********************************************************************/
|
||||
/* MENU FUNCTIONS */
|
||||
/*********************************************************************/
|
||||
/* at some point i'll make this a generic menu interface, but for now,
|
||||
* these defines will suffice */
|
||||
#define MENU_X 10
|
||||
#define MENU_Y 10
|
||||
#define MENU_WIDTH (LCD_WIDTH - 2 * MENU_X)
|
||||
#define MENU_HEIGHT (LCD_HEIGHT - 2 * MENU_Y)
|
||||
#define MENU_RECT MENU_X, MENU_Y, MENU_WIDTH, MENU_HEIGHT
|
||||
#define SHADOW_RECT MENU_X + 1, MENU_Y + 1, MENU_WIDTH, MENU_HEIGHT
|
||||
#define MENU_ITEM_PAD 2
|
||||
|
||||
/*
|
||||
* select_item - select menu item (after deselecting current item)
|
||||
*/
|
||||
static void select_item(char *title, int curr_item, size_t item_i) {
|
||||
int x, y, w, h;
|
||||
|
||||
/* get size of title, use that as height ofr all lines */
|
||||
rb->lcd_getstringsize(title, &w, &h);
|
||||
h += MENU_ITEM_PAD * 2;
|
||||
|
||||
/* calc x and width */
|
||||
x = MENU_X + MENU_ITEM_PAD;
|
||||
w = MENU_WIDTH - 2 * MENU_ITEM_PAD;
|
||||
|
||||
/* if there is a current item, then deselect it */
|
||||
if (curr_item >= 0) {
|
||||
/* deselect old item */
|
||||
y = MENU_Y + h + MENU_ITEM_PAD * 2; /* account for title */
|
||||
y += h * curr_item;
|
||||
rb->lcd_invertrect(x, y, w, h);
|
||||
}
|
||||
|
||||
/* select new item */
|
||||
curr_item = item_i;
|
||||
|
||||
/* select new item */
|
||||
y = MENU_Y + h + MENU_ITEM_PAD * 2; /* account for title */
|
||||
y += h * curr_item;
|
||||
rb->lcd_invertrect(x, y, w, h);
|
||||
|
||||
/* update the menu window */
|
||||
rb->lcd_update_rect(MENU_RECT);
|
||||
}
|
||||
|
||||
/*
|
||||
* draw_menu - draw menu on screen
|
||||
*
|
||||
* Returns MENU_CANCEL if the user cancelled, or the item number of the
|
||||
* selected item.
|
||||
*
|
||||
*/
|
||||
static void draw_menu(char *title, char **items, size_t num_items) {
|
||||
size_t i;
|
||||
int x, y, w, h, by;
|
||||
|
||||
/* set to default? font */
|
||||
/* rb->lcd_setfont(0); */
|
||||
|
||||
/* draw the outline */
|
||||
rb->lcd_fillrect(SHADOW_RECT);
|
||||
rb->lcd_clearrect(MENU_RECT);
|
||||
rb->lcd_drawrect(MENU_RECT);
|
||||
|
||||
/* calculate x/y */
|
||||
x = MENU_X + MENU_ITEM_PAD;
|
||||
y = MENU_Y + MENU_ITEM_PAD * 2;
|
||||
rb->lcd_getstringsize(title, &w, &h);
|
||||
h += MENU_ITEM_PAD * 2;
|
||||
|
||||
/* draw menu stipple */
|
||||
for (i = MENU_Y; i < (size_t) y + h; i += 2)
|
||||
rb->lcd_drawline(MENU_X, i, MENU_X + MENU_WIDTH, i);
|
||||
|
||||
/* clear title rect */
|
||||
rb->lcd_clearrect((LCD_WIDTH - w) / 2 - 2, y - 2, w + 4, h);
|
||||
|
||||
/* draw centered title on screen */
|
||||
rb->lcd_putsxy((LCD_WIDTH - w)/2, y, title);
|
||||
|
||||
/* calculate base Y for items */
|
||||
by = y + h + MENU_ITEM_PAD;
|
||||
|
||||
/* iterate over each item and draw it on the screen */
|
||||
for (i = 0; i < num_items; i++)
|
||||
rb->lcd_putsxy(x, by + h * i, items[i]);
|
||||
|
||||
/* update the screen */
|
||||
rb->lcd_update();
|
||||
}
|
||||
|
||||
/*
|
||||
* do_menu - draw menu on screen.
|
||||
*
|
||||
* Draw a menu titled @title on the screen, with @num_items elements
|
||||
* from @items, and select the @sel element. If in doubt, set @sel to
|
||||
* -1 :).
|
||||
*
|
||||
*/
|
||||
static int do_menu(char *title, char **items, size_t num_items, int sel) {
|
||||
int btn, sel_item, ret, curr_item;
|
||||
bool done = false;
|
||||
ret = MENU_CANCEL;
|
||||
|
||||
/* draw menu on screen and select the first item */
|
||||
draw_menu(title, items, num_items);
|
||||
curr_item = -1;
|
||||
select_item(title, curr_item, sel);
|
||||
curr_item = sel;
|
||||
|
||||
/* make sure button state is empty */
|
||||
while (rb->button_get(false) != BUTTON_NONE)
|
||||
rb->yield();
|
||||
|
||||
/* loop until the menu is finished */
|
||||
while (!done) {
|
||||
/* grab a button */
|
||||
btn = rb->button_get(true);
|
||||
|
||||
/* handle the button */
|
||||
switch (btn) {
|
||||
case BUTTON_DOWN:
|
||||
/* select next item in list */
|
||||
sel_item = curr_item + 1;
|
||||
if (sel_item >= (int) num_items)
|
||||
sel_item = 0;
|
||||
select_item(title, curr_item, sel_item);
|
||||
curr_item = sel_item;
|
||||
break;
|
||||
case BUTTON_UP:
|
||||
/* select prev item in list */
|
||||
sel_item = curr_item - 1;
|
||||
if (sel_item < 0)
|
||||
sel_item = num_items - 1;
|
||||
select_item(title, curr_item, sel_item);
|
||||
curr_item = sel_item;
|
||||
break;
|
||||
case BUTTON_RIGHT:
|
||||
/* select current item */
|
||||
ret = curr_item;
|
||||
done = true;
|
||||
break;
|
||||
case BUTTON_LEFT:
|
||||
case BUTTON_SELECT:
|
||||
/* cancel out of menu */
|
||||
ret = MENU_CANCEL;
|
||||
done = true;
|
||||
break;
|
||||
}
|
||||
|
||||
/* give the OS some love */
|
||||
rb->yield();
|
||||
}
|
||||
|
||||
/* return selected item */
|
||||
return ret;
|
||||
}
|
||||
Loading…
Reference in a new issue