reflow-oven-control-sw/stm-firmware/ui/menu.c

/* Reflow Oven Controller
*
* Copyright (C) 2020  Mario Hüttel <mario.huettel@gmx.net>
*
* This file is part of the Reflow Oven Controller Project.
*
* The reflow oven controller is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* The Reflow Oven Control Firmware is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the reflow oven controller project.
* If not, see <http://www.gnu.org/licenses/>.
*/

#include <reflow-controller/ui/menu.h>
#include <stddef.h>

void menu_handle(struct lcd_menu *menu, int16_t rotary_encoder_delta, enum button_state push_button)
{
	menu_func_t tmp;

	if (!menu)
		return;

	menu->inputs.push_button = push_button;
	menu->inputs.rotary_encoder_delta = rotary_encoder_delta;

	if (menu->active_entry == NULL)
		menu->active_entry = menu->root_entry;

	tmp = menu->active_entry;


	if (menu->active_entry_type == MENU_ENTRY_FIRST_ENTER) {
			menu->active_entry(menu, menu->active_entry_type, menu->init_parent);
	} else {
			menu->active_entry(menu, menu->active_entry_type, NULL);
	}

	if (menu->active_entry_type != MENU_ENTRY_CONTINUE && tmp == menu->active_entry) {
		menu->active_entry_type = MENU_ENTRY_CONTINUE;
	}
}

void menu_init(struct lcd_menu *menu, menu_func_t root_node, void (*display_update)(uint8_t row, const char *data))
{
	if (!menu)
		return;

	menu->root_entry = root_node;
	menu->active_entry = root_node;
	menu->init_parent = NULL;
	menu->inputs.push_button = BUTTON_IDLE;
	menu->inputs.rotary_encoder_delta = 0;
	menu->active_entry_type = MENU_ENTRY_FIRST_ENTER;
	menu->update_display = display_update;
}

void menu_entry_dropback(struct lcd_menu *menu, menu_func_t parent_func)
{
	if (!menu)
		return;
	if (parent_func)
		menu->active_entry = parent_func;
	else
		menu->active_entry = menu->root_entry;

	menu->active_entry_type = MENU_ENTRY_DROPBACK;
}

void menu_entry_enter(struct lcd_menu *menu, menu_func_t entry, bool handle_immediately)
{
	if (!menu)
		return;

	menu->init_parent = menu->active_entry;
	menu->active_entry_type = MENU_ENTRY_FIRST_ENTER;
	menu->active_entry = entry;

	if (handle_immediately)
		menu_handle(menu, menu->inputs.rotary_encoder_delta, menu->inputs.push_button);
}

void menu_override_lcd_output(struct lcd_menu *menu, uint8_t row_num, const char *text)
{
	if (!menu || !menu->update_display)
		return;

	menu->update_display(row_num, text);
}

void menu_list_display(struct menu_list *list, uint8_t top_row, uint8_t bottom_row)
{
	(void)list;
	(void)top_row;
	(void)bottom_row;
}