mirror of
https://github.com/CTCaer/RetroArch.git
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75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2011-2015 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "menu.h"
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#include "menu_entries.h"
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#include "menu_navigation.h"
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static int action_bind_up_or_down_generic(unsigned type, const char *label,
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unsigned action)
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{
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unsigned scroll_speed = 0;
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menu_handle_t *menu = menu_driver_resolve();
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if (!menu)
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return -1;
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scroll_speed = (max(menu->navigation.scroll.acceleration, 2) - 2) / 4 + 1;
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if (menu_list_get_size(menu->menu_list) <= 0)
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return 0;
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switch (action)
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{
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case MENU_ACTION_UP:
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if (menu->navigation.selection_ptr >= scroll_speed)
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menu_navigation_set(&menu->navigation,
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menu->navigation.selection_ptr - scroll_speed, true);
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else
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{
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if (g_settings.menu.navigation.wraparound.vertical_enable)
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menu_navigation_set(&menu->navigation,
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menu_list_get_size(menu->menu_list) - 1, true);
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else
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menu_navigation_set(&menu->navigation, 0, true);
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}
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break;
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case MENU_ACTION_DOWN:
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if (menu->navigation.selection_ptr + scroll_speed < (menu_list_get_size(menu->menu_list)))
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menu_navigation_set(&menu->navigation,
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menu->navigation.selection_ptr + scroll_speed, true);
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else
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{
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if (g_settings.menu.navigation.wraparound.vertical_enable)
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menu_navigation_clear(&menu->navigation, false);
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else
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menu_navigation_set(&menu->navigation,
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menu_list_get_size(menu->menu_list) - 1, true);
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}
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break;
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}
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return 0;
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}
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void menu_entries_cbs_init_bind_up_or_down(menu_file_list_cbs_t *cbs,
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const char *path, const char *label, unsigned type, size_t idx,
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const char *elem0, const char *elem1)
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{
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if (!cbs)
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return;
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cbs->action_up_or_down = action_bind_up_or_down_generic;
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}
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