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Menu cursor now wraps around top and bottom. Reworked drawing of cursor

Browse source 
to be a bit more friendly.  Made use of lcd_clear_display instead of
lcd_clearrect with the full display for x, y.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@395 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Robert Hak 2002-05-03 05:21:58 +00:00
parent 46f5461ac7
commit 67dc94786b
1 changed files with 94 additions and 59 deletions
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153
uisimulator/app.c
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@ -26,77 +26,112 @@
extern void tetris(void);
#define LINE_HEIGHT 8
#define MENU_ITEM_FONT 0
#define MENU_ITEM_Y_LOC 6
#define MENU_LINE_HEIGHT 8
#define MAX_LINE 3 /* the last index with info, starting on 0 */
/* menu ids */
#define ITEM_TETRIS 0
#define ITEM_SCREENSAVER 1
#define ITEM_BROWSE 2
#define ITEM_ROCKABOX 3
/* global cursor */
int cursor = 0;
/* the last index with info, starting on 0 */
#define MAX_LINE 3
int menu_top = 0;
int menu_bottom = MAX_LINE;
void add_menu_item(int location, char *string)
{
lcd_puts(MENU_ITEM_Y_LOC, MENU_LINE_HEIGHT*location,
string, MENU_ITEM_FONT);
if (location < menu_top)
menu_top = location;
if (location > menu_bottom)
menu_bottom = location;
}
void menu_init(void)
{
lcd_puts(6, 0, "Rockabox", 0);
lcd_puts(6, 8, "Screen Saver", 0);
#define LINE_SS 1
lcd_puts(6, 16, "Browse", 0);
#define LINE_BROWSE 2
lcd_puts(6, 24, "Tetris", 0);
#define LINE_TETRIS 3
lcd_puts(8, 38, "Rockbox!", 2);
/* x, y, string, font */
/* lcd_puts(6, 0, "Rockabox", 0);*/
add_menu_item(ITEM_ROCKABOX, "Rockabox");
add_menu_item(ITEM_SCREENSAVER, "Screen Saver");
add_menu_item(ITEM_BROWSE, "Browse");
add_menu_item(ITEM_TETRIS, "Tetris");
lcd_puts(0, cursor, "-", 0);
lcd_puts(8, 38, "Rockbox!", 2);
put_cursor(0, 0);
}
/* Move the cursor to a particular id */
int put_cursor(int current, int target)
{
lcd_puts(0, current*MENU_LINE_HEIGHT, " ", 0);
lcd_puts(0, target*MENU_LINE_HEIGHT, "-", 0);
return target;
}
void app_main(void)
{
int key;
int key;
int cursor = 0;
menu_init();
menu_init();
while(1) {
key = button_get();
while(1) {
key = button_get();
if(!key) {
sleep(1);
continue;
if(!key) {
sleep(1);
continue;
}
switch(key) {
case BUTTON_UP:
if(cursor == menu_top ){
/* wrap around to menu bottom */
printf("from (%d) to (%d)\n", cursor, menu_bottom);
cursor = put_cursor(cursor, menu_bottom);
} else {
/* move up */
printf("from (%d) to (%d)\n", cursor, cursor-1);
cursor = put_cursor(cursor, cursor-1);
}
break;
case BUTTON_DOWN:
if(cursor == menu_bottom ){
/* wrap around to menu top */
printf("from (%d) to (%d)\n", cursor, menu_top);
cursor = put_cursor(cursor, menu_top);
} else {
/* move down */
printf("from (%d) to (%d)\n", cursor, cursor+1);
cursor = put_cursor(cursor, cursor+1);
}
break;
case BUTTON_RIGHT:
case BUTTON_PLAY:
/* Erase current display state */
lcd_clear_display();
switch(cursor) {
case ITEM_TETRIS:
tetris();
break;
case ITEM_BROWSE:
dirbrowse("/");
break;
case ITEM_SCREENSAVER:
screensaver();
break;
}
/* Return to previous display state */
lcd_clear_display();
menu_init();
break;
}
lcd_update();
}
switch(key) {
case BUTTON_UP:
if(cursor) {
lcd_puts(0, cursor, " ", 0);
cursor-= LINE_HEIGHT;
lcd_puts(0, cursor, "-", 0);
}
break;
case BUTTON_DOWN:
if(cursor<(MAX_LINE*LINE_HEIGHT)) {
lcd_puts(0, cursor, " ", 0);
cursor+=LINE_HEIGHT;
lcd_puts(0, cursor, "-", 0);
}
break;
case BUTTON_RIGHT:
case BUTTON_PLAY:
switch(cursor) {
case (LINE_TETRIS * LINE_HEIGHT):
lcd_clearrect(0, 0, LCD_WIDTH, LCD_HEIGHT);
tetris();
lcd_clearrect(0, 0, LCD_WIDTH, LCD_HEIGHT);
menu_init();
break;
case (LINE_BROWSE * LINE_HEIGHT):
dirbrowse("/");
lcd_clearrect(0, 0, LCD_WIDTH, LCD_HEIGHT);
menu_init();
break;
case (LINE_SS * LINE_HEIGHT):
screensaver();
lcd_clearrect(0, 0, LCD_WIDTH, LCD_HEIGHT);
menu_init();
break;
}
break;
}
lcd_update();
}
}