mirror of https://github.com/EspoTek/Labrador.git
189 lines
5.4 KiB
C
189 lines
5.4 KiB
C
/**
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* \file
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*
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* \brief Simple menu system
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* Copyright (c) 2011-2015 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* \asf_license_stop
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*
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*/
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/*
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* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
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*/
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#include "sysfont.h"
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#include "gfx_mono.h"
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#include <conf_menu.h>
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#include "gfx_mono_menu.h"
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/**
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* \ingroup gfx_mono_menu
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* @{
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*/
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PROGMEM_DECLARE(gfx_mono_color_t, arrow_right_data[]) = {
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GFX_MONO_MENU_INDICATOR_BITMAP
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};
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struct gfx_mono_bitmap menu_bitmap_indicator = {
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.height = GFX_MONO_MENU_INDICATOR_HEIGHT,
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.width = GFX_MONO_MENU_INDICATOR_WIDTH,
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.type = GFX_MONO_BITMAP_PROGMEM,
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.data.progmem = arrow_right_data
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};
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/**
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* \brief Draw menu strings and an icon by the current selection.
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*
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* \param menu a menu struct with menu settings
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* \param redraw clear screen before drawing menu
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*/
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static void menu_draw(struct gfx_mono_menu *menu, bool redraw)
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{
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static bool redraw_state;
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uint8_t i;
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uint8_t line = 1;
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uint8_t menu_page = menu->current_selection /
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GFX_MONO_MENU_ELEMENTS_PER_SCREEN;
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if (menu->current_page != menu_page || redraw == true) {
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/* clear screen if we have changed the page or menu and prepare
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* redraw */
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gfx_mono_draw_filled_rect(0, SYSFONT_LINESPACING,
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GFX_MONO_LCD_WIDTH,
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GFX_MONO_LCD_HEIGHT - SYSFONT_LINESPACING,
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GFX_PIXEL_CLR);
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redraw_state = true;
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}
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menu->current_page = menu_page;
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/* Clear old indicator icon */
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gfx_mono_draw_filled_rect(0, SYSFONT_LINESPACING,
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GFX_MONO_MENU_INDICATOR_WIDTH, GFX_MONO_LCD_HEIGHT -
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SYSFONT_LINESPACING, GFX_PIXEL_CLR);
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/* Put indicator icon on current selection */
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gfx_mono_put_bitmap(&menu_bitmap_indicator, 0,
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SYSFONT_LINESPACING * ((menu->current_selection %
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GFX_MONO_MENU_ELEMENTS_PER_SCREEN) + 1));
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/* Print visible options if page or menu has changed */
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if (redraw_state == true) {
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for (i = menu_page * GFX_MONO_MENU_ELEMENTS_PER_SCREEN;
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i < menu_page *
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GFX_MONO_MENU_ELEMENTS_PER_SCREEN +
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GFX_MONO_MENU_ELEMENTS_PER_SCREEN &&
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i < menu->num_elements; i++) {
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gfx_mono_draw_progmem_string(
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(char PROGMEM_PTR_T)menu->strings[i],
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GFX_MONO_MENU_INDICATOR_WIDTH + 1,
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line * SYSFONT_LINESPACING, &sysfont);
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line++;
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}
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redraw_state = false;
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}
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}
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/**
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* *\brief Initialize the menu handling. Clear screen and draw menu.
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*
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* \param menu menu struct with menu options
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*
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*/
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void gfx_mono_menu_init(struct gfx_mono_menu *menu)
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{
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/* Clear screen */
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gfx_mono_draw_filled_rect(0, 0,
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GFX_MONO_LCD_WIDTH, GFX_MONO_LCD_HEIGHT, GFX_PIXEL_CLR);
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/* Draw the menu title on the top of the screen */
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gfx_mono_draw_progmem_string((char PROGMEM_PTR_T)menu->title,
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0, 0, &sysfont);
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/* Draw menu options below */
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menu_draw(menu, true);
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}
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/**
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* \brief Update menu depending on input.
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*
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* \param menu menu struct with menu options
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* \param keycode keycode to process
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*
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* \retval selected menu option or status code
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*/
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uint8_t gfx_mono_menu_process_key(struct gfx_mono_menu *menu, uint8_t keycode)
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{
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switch (keycode) {
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case GFX_MONO_MENU_KEYCODE_DOWN:
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if (menu->current_selection == menu->num_elements - 1) {
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menu->current_selection = 0;
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} else {
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menu->current_selection++;
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}
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/* Update menu on display */
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menu_draw(menu, false);
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/* Nothing selected yet */
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return GFX_MONO_MENU_EVENT_IDLE;
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case GFX_MONO_MENU_KEYCODE_UP:
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if (menu->current_selection) {
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menu->current_selection--;
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} else {
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menu->current_selection = menu->num_elements - 1;
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}
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/* Update menu on display */
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menu_draw(menu, false);
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/* Nothing selected yet */
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return GFX_MONO_MENU_EVENT_IDLE;
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case GFX_MONO_MENU_KEYCODE_ENTER:
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/* Got what we want. Return selection. */
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return menu->current_selection;
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case GFX_MONO_MENU_KEYCODE_BACK:
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/* User pressed "back" key, inform user */
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return GFX_MONO_MENU_EVENT_EXIT;
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default:
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/* Unknown key event */
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return GFX_MONO_MENU_EVENT_IDLE;
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}
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}
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