Krolyxon
Commit 1d55752

Branches

Tags

Refs →

orion-rf.piolibdepsesp32-s3-n16r8U8g2srcclibu8g2_message.c

197 lines · 5.4 KB · C

Raw Blame History Download
1/*
2
3 u8g2_message.c
4
5 Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
6
7 Copyright (c) 2016, olikraus@gmail.com
8 All rights reserved.
9
10 Redistribution and use in source and binary forms, with or without modification,
11 are permitted provided that the following conditions are met:
12
13 * Redistributions of source code must retain the above copyright notice, this list
14 of conditions and the following disclaimer.
15
16 * Redistributions in binary form must reproduce the above copyright notice, this
17 list of conditions and the following disclaimer in the documentation and/or other
18 materials provided with the distribution.
19
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
21 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
22 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
25 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
30 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
32 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33
34*/
35
36#include "u8g2.h"
37
38#define SPACE_BETWEEN_BUTTONS_IN_PIXEL 6
39#define SPACE_BETWEEN_TEXT_AND_BUTTONS_IN_PIXEL 3
40
41uint8_t u8g2_draw_button_line(u8g2_t *u8g2, u8g2_uint_t y, u8g2_uint_t w, uint8_t cursor, const char *s)
42{
43 u8g2_uint_t button_line_width;
44
45 uint8_t i;
46 uint8_t cnt;
47 uint8_t is_invert;
48
49 u8g2_uint_t d;
50 u8g2_uint_t x;
51
52 cnt = u8x8_GetStringLineCnt(s);
53
54
55 /* calculate the width of the button line */
56 button_line_width = 0;
57 for( i = 0; i < cnt; i++ )
58 {
59 button_line_width += u8g2_GetUTF8Width(u8g2, u8x8_GetStringLineStart(i, s));
60 }
61 button_line_width += (cnt-1)*SPACE_BETWEEN_BUTTONS_IN_PIXEL; /* add some space between the buttons */
62
63 /* calculate the left offset */
64 d = 0;
65 if ( button_line_width < w )
66 {
67 d = w;
68 d -= button_line_width;
69 d /= 2;
70 }
71
72 /* draw the buttons */
73 x = d;
74 for( i = 0; i < cnt; i++ )
75 {
76 is_invert = 0;
77 if ( i == cursor )
78 is_invert = 1;
79
80 u8g2_DrawUTF8Line(u8g2, x, y, 0, u8x8_GetStringLineStart(i, s), 1, is_invert);
81 x += u8g2_GetUTF8Width(u8g2, u8x8_GetStringLineStart(i, s));
82 x += SPACE_BETWEEN_BUTTONS_IN_PIXEL;
83 }
84
85 /* return the number of buttons */
86 return cnt;
87}
88
89/*
90 title1: Multiple lines,separated by '\n'
91 title2: A single line/string which is terminated by '\0' or '\n' . "title2" accepts the return value from u8x8_GetStringLineStart()
92 title3: Multiple lines,separated by '\n'
93 buttons: one more more buttons separated by '\n' and terminated with '\0'
94 side effects:
95 u8g2_SetFontDirection(u8g2, 0);
96 u8g2_SetFontPosBaseline(u8g2);
97*/
98
99uint8_t u8g2_UserInterfaceMessage(u8g2_t *u8g2, const char *title1, const char *title2, const char *title3, const char *buttons)
100{
101 uint8_t height;
102 uint8_t line_height;
103 u8g2_uint_t pixel_height;
104 u8g2_uint_t y, yy;
105
106 uint8_t cursor = 0;
107 uint8_t button_cnt;
108 uint8_t event;
109
110 /* only horizontal strings are supported, so force this here */
111 u8g2_SetFontDirection(u8g2, 0);
112
113 /* force baseline position */
114 u8g2_SetFontPosBaseline(u8g2);
115
116
117 /* calculate line height */
118 line_height = u8g2_GetAscent(u8g2);
119 line_height -= u8g2_GetDescent(u8g2);
120
121 /* calculate overall height of the message box in lines*/
122 height = 1; /* button line */
123 height += u8x8_GetStringLineCnt(title1);
124 if ( title2 != NULL )
125 height++;
126 height += u8x8_GetStringLineCnt(title3);
127
128 /* calculate the height in pixel */
129 pixel_height = height;
130 pixel_height *= line_height;
131
132 /* ... and add the space between the text and the buttons */
133 pixel_height +=SPACE_BETWEEN_TEXT_AND_BUTTONS_IN_PIXEL;
134
135 /* calculate offset from top */
136 y = 0;
137 if ( pixel_height < u8g2_GetDisplayHeight(u8g2) )
138 {
139 y = u8g2_GetDisplayHeight(u8g2);
140 y -= pixel_height;
141 y /= 2;
142 }
143 y += u8g2_GetAscent(u8g2);
144
145
146 for(;;)
147 {
148 u8g2_FirstPage(u8g2);
149 do
150 {
151 yy = y;
152 /* draw message box */
153
154 yy += u8g2_DrawUTF8Lines(u8g2, 0, yy, u8g2_GetDisplayWidth(u8g2), line_height, title1);
155 if ( title2 != NULL )
156 {
157 u8g2_DrawUTF8Line(u8g2, 0, yy, u8g2_GetDisplayWidth(u8g2), title2, 0, 0);
158 yy+=line_height;
159 }
160 yy += u8g2_DrawUTF8Lines(u8g2, 0, yy, u8g2_GetDisplayWidth(u8g2), line_height, title3);
161 yy += SPACE_BETWEEN_TEXT_AND_BUTTONS_IN_PIXEL;
162
163 button_cnt = u8g2_draw_button_line(u8g2, yy, u8g2_GetDisplayWidth(u8g2), cursor, buttons);
164
165 } while( u8g2_NextPage(u8g2) );
166
167#ifdef U8G2_REF_MAN_PIC
168 return 0;
169#endif
170
171 for(;;)
172 {
173 event = u8x8_GetMenuEvent(u8g2_GetU8x8(u8g2));
174 if ( event == U8X8_MSG_GPIO_MENU_SELECT )
175 return cursor+1;
176 else if ( event == U8X8_MSG_GPIO_MENU_HOME )
177 return 0;
178 else if ( event == U8X8_MSG_GPIO_MENU_NEXT || event == U8X8_MSG_GPIO_MENU_DOWN )
179 {
180 cursor++;
181 if ( cursor >= button_cnt )
182 cursor = 0;
183 break;
184 }
185 else if ( event == U8X8_MSG_GPIO_MENU_PREV || event == U8X8_MSG_GPIO_MENU_UP )
186 {
187 if ( cursor == 0 )
188 cursor = button_cnt;
189 cursor--;
190 break;
191 }
192 }
193 }
194 /* never reached */
195 //return 0;
196}
197