1 /**
2 * \file
3 *
4 * \brief Simple menu system
5 * Copyright (c) 2011-2015 Atmel Corporation. All rights reserved.
6 *
7 * \asf_license_start
8 *
9 * \page License
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions are met:
13 *
14 * 1. Redistributions of source code must retain the above copyright notice,
15 * this list of conditions and the following disclaimer.
16 *
17 * 2. Redistributions in binary form must reproduce the above copyright notice,
18 * this list of conditions and the following disclaimer in the documentation
19 * and/or other materials provided with the distribution.
20 *
21 * 3. The name of Atmel may not be used to endorse or promote products derived
22 * from this software without specific prior written permission.
23 *
24 * 4. This software may only be redistributed and used in connection with an
25 * Atmel microcontroller product.
26 *
27 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
28 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
30 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
31 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
36 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 *
39 * \asf_license_stop
40 *
41 */
42 /*
43 * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
44 */
45
46 #include "sysfont.h"
47 #include <conf_menu.h>
48
49 #include "gfx_mono_menu.h"
50
51 /**
52 * \ingroup asfdoc_common2_gfx_mono_menu
53 * @{
54 */
55
56 PROGMEM_DECLARE(gfx_mono_color_t, arrow_right_data[]) = {
57 GFX_MONO_MENU_INDICATOR_BITMAP
58 };
59
60 struct gfx_mono_bitmap menu_bitmap_indicator = {
61 .height = GFX_MONO_MENU_INDICATOR_HEIGHT,
62 .width = GFX_MONO_MENU_INDICATOR_WIDTH,
63 .type = GFX_MONO_BITMAP_PROGMEM,
64 .data.progmem = arrow_right_data
65 };
66
67 /**
68 * \brief Draw menu strings and an icon by the current selection.
69 *
70 * \param[in] menu a menu struct with menu settings
71 * \param[in] redraw clear screen before drawing menu
72 */
menu_draw(struct gfx_mono_menu * menu,bool redraw)73 static void menu_draw(struct gfx_mono_menu *menu, bool redraw)
74 {
75 static bool redraw_state;
76 uint8_t i;
77 uint8_t line = 1;
78 uint8_t menu_page = menu->current_selection /
79 GFX_MONO_MENU_ELEMENTS_PER_SCREEN;
80
81 if (menu->current_page != menu_page || redraw == true) {
82 /* clear screen if we have changed the page or menu and prepare
83 * redraw */
84 gfx_mono_draw_filled_rect(0, SYSFONT_LINESPACING,
85 GFX_MONO_LCD_WIDTH,
86 GFX_MONO_LCD_HEIGHT - SYSFONT_LINESPACING,
87 GFX_PIXEL_CLR);
88 redraw_state = true;
89 }
90
91 menu->current_page = menu_page;
92
93 /* Clear old indicator icon */
94 gfx_mono_draw_filled_rect(0, SYSFONT_LINESPACING,
95 GFX_MONO_MENU_INDICATOR_WIDTH, GFX_MONO_LCD_HEIGHT -
96 SYSFONT_LINESPACING, GFX_PIXEL_CLR);
97
98 /* Put indicator icon on current selection */
99 gfx_mono_put_bitmap(&menu_bitmap_indicator, 0,
100 SYSFONT_LINESPACING * ((menu->current_selection %
101 GFX_MONO_MENU_ELEMENTS_PER_SCREEN) + 1));
102
103 /* Print visible options if page or menu has changed */
104 if (redraw_state == true) {
105 for (i = menu_page * GFX_MONO_MENU_ELEMENTS_PER_SCREEN;
106 i < menu_page *
107 GFX_MONO_MENU_ELEMENTS_PER_SCREEN +
108 GFX_MONO_MENU_ELEMENTS_PER_SCREEN &&
109 i < menu->num_elements; i++) {
110 gfx_mono_draw_progmem_string(
111 (char PROGMEM_PTR_T)menu->strings[i],
112 GFX_MONO_MENU_INDICATOR_WIDTH + 1,
113 line * SYSFONT_LINESPACING, &sysfont);
114 line++;
115 }
116 redraw_state = false;
117 }
118 }
119
120 /**
121 * *\brief Initialize the menu handling. Clear screen and draw menu.
122 *
123 * \param[in] menu menu struct with menu options
124 *
125 */
gfx_mono_menu_init(struct gfx_mono_menu * menu)126 void gfx_mono_menu_init(struct gfx_mono_menu *menu)
127 {
128 /* Clear screen */
129 gfx_mono_draw_filled_rect(0, 0,
130 GFX_MONO_LCD_WIDTH, GFX_MONO_LCD_HEIGHT, GFX_PIXEL_CLR);
131
132 /* Draw the menu title on the top of the screen */
133 gfx_mono_draw_progmem_string((char PROGMEM_PTR_T)menu->title,
134 0, 0, &sysfont);
135
136 /* Draw menu options below */
137 menu_draw(menu, true);
138 }
139
140 /**
141 * \brief Update menu depending on input.
142 *
143 * \param[in] menu menu struct with menu options
144 * \param[in] keycode keycode to process
145 *
146 * \retval selected menu option or status code
147 */
gfx_mono_menu_process_key(struct gfx_mono_menu * menu,uint8_t keycode)148 uint8_t gfx_mono_menu_process_key(struct gfx_mono_menu *menu, uint8_t keycode)
149 {
150 switch (keycode) {
151 case GFX_MONO_MENU_KEYCODE_DOWN:
152 if (menu->current_selection == menu->num_elements - 1) {
153 menu->current_selection = 0;
154 } else {
155 menu->current_selection++;
156 }
157
158 /* Update menu on display */
159 menu_draw(menu, false);
160 /* Nothing selected yet */
161 return GFX_MONO_MENU_EVENT_IDLE;
162
163 case GFX_MONO_MENU_KEYCODE_UP:
164 if (menu->current_selection) {
165 menu->current_selection--;
166 } else {
167 menu->current_selection = menu->num_elements - 1;
168 }
169
170 /* Update menu on display */
171 menu_draw(menu, false);
172 /* Nothing selected yet */
173 return GFX_MONO_MENU_EVENT_IDLE;
174
175 case GFX_MONO_MENU_KEYCODE_ENTER:
176 /* Got what we want. Return selection. */
177 return menu->current_selection;
178
179 case GFX_MONO_MENU_KEYCODE_BACK:
180 /* User pressed "back" key, inform user */
181 return GFX_MONO_MENU_EVENT_EXIT;
182
183 default:
184 /* Unknown key event */
185 return GFX_MONO_MENU_EVENT_IDLE;
186 }
187 }
188