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add fast scrolling to settings menus

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This commit is contained in:
Toad King 2014-10-18 20:38:13 -05:00
parent 95690b9034
commit 0047aa9aaf
1 changed files with 9 additions and 5 deletions
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14
frontend/menu/backend/menu_common_backend.c
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@ -191,7 +191,7 @@ static int menu_settings_iterate(unsigned action,
{
const char *path = NULL;
const char *label = NULL;
unsigned type = 0;
unsigned type = 0, scroll_speed = 0;
driver.menu->frame_buf_pitch = driver.menu->width * 2;
@ -201,19 +201,23 @@ static int menu_settings_iterate(unsigned action,
if (driver.menu->need_refresh && action != MENU_ACTION_MESSAGE)
action = MENU_ACTION_REFRESH;
scroll_speed = (max(driver.menu->scroll_accel, 2) - 2) / 4 + 1;
switch (action)
{
case MENU_ACTION_UP:
if (driver.menu->selection_ptr > 0)
menu_navigation_decrement(driver.menu);
if (driver.menu->selection_ptr >= scroll_speed)
menu_navigation_set(driver.menu,
driver.menu->selection_ptr - scroll_speed);
else
menu_navigation_set(driver.menu,
menu_list_get_size(driver.menu->menu_list) - 1);
break;
case MENU_ACTION_DOWN:
if ((driver.menu->selection_ptr + 1) < (menu_list_get_size(driver.menu->menu_list)))
menu_navigation_increment(driver.menu);
if (driver.menu->selection_ptr + scroll_speed < (menu_list_get_size(driver.menu->menu_list)))
menu_navigation_set(driver.menu,
driver.menu->selection_ptr + scroll_speed);
else
menu_navigation_clear(driver.menu, false);
break;