iforce2d Chris / Mbed 2 deprecated ubxDistanceMeter

Displays distance to start location on OLED screen.

Dependencies:   mbed

u8g_virtual_screen.c@0:972874f31c98, 2018-03-07 (annotated)

Committer:
iforce2d
Date:
Wed Mar 07 12:49:14 2018 +0000
Revision:
0:972874f31c98
First commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
iforce2d 0:972874f31c98 1 /*
iforce2d 0:972874f31c98 2
iforce2d 0:972874f31c98 3 u8g_virtual_screen.c
iforce2d 0:972874f31c98 4
iforce2d 0:972874f31c98 5 Universal 8bit Graphics Library
iforce2d 0:972874f31c98 6
iforce2d 0:972874f31c98 7 Copyright (c) 2012, olikraus@gmail.com
iforce2d 0:972874f31c98 8 All rights reserved.
iforce2d 0:972874f31c98 9
iforce2d 0:972874f31c98 10 Redistribution and use in source and binary forms, with or without modification,
iforce2d 0:972874f31c98 11 are permitted provided that the following conditions are met:
iforce2d 0:972874f31c98 12
iforce2d 0:972874f31c98 13 * Redistributions of source code must retain the above copyright notice, this list
iforce2d 0:972874f31c98 14 of conditions and the following disclaimer.
iforce2d 0:972874f31c98 15
iforce2d 0:972874f31c98 16 * Redistributions in binary form must reproduce the above copyright notice, this
iforce2d 0:972874f31c98 17 list of conditions and the following disclaimer in the documentation and/or other
iforce2d 0:972874f31c98 18 materials provided with the distribution.
iforce2d 0:972874f31c98 19
iforce2d 0:972874f31c98 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
iforce2d 0:972874f31c98 21 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
iforce2d 0:972874f31c98 22 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
iforce2d 0:972874f31c98 23 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
iforce2d 0:972874f31c98 24 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
iforce2d 0:972874f31c98 25 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
iforce2d 0:972874f31c98 26 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
iforce2d 0:972874f31c98 27 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
iforce2d 0:972874f31c98 28 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
iforce2d 0:972874f31c98 29 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
iforce2d 0:972874f31c98 30 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
iforce2d 0:972874f31c98 31 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
iforce2d 0:972874f31c98 32 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
iforce2d 0:972874f31c98 33
iforce2d 0:972874f31c98 34
iforce2d 0:972874f31c98 35 */
iforce2d 0:972874f31c98 36
iforce2d 0:972874f31c98 37 #include "u8g.h"
iforce2d 0:972874f31c98 38
iforce2d 0:972874f31c98 39 struct _u8g_vs_t
iforce2d 0:972874f31c98 40 {
iforce2d 0:972874f31c98 41 u8g_uint_t x;
iforce2d 0:972874f31c98 42 u8g_uint_t y;
iforce2d 0:972874f31c98 43 u8g_t *u8g;
iforce2d 0:972874f31c98 44 };
iforce2d 0:972874f31c98 45 typedef struct _u8g_vs_t u8g_vs_t;
iforce2d 0:972874f31c98 46
iforce2d 0:972874f31c98 47 #define U8g_VS_MAX 4
iforce2d 0:972874f31c98 48 uint8_t u8g_vs_cnt = 0;
iforce2d 0:972874f31c98 49 u8g_vs_t u8g_vs_list[U8g_VS_MAX];
iforce2d 0:972874f31c98 50 uint8_t u8g_vs_current;
iforce2d 0:972874f31c98 51 u8g_uint_t u8g_vs_width;
iforce2d 0:972874f31c98 52 u8g_uint_t u8g_vs_height;
iforce2d 0:972874f31c98 53
iforce2d 0:972874f31c98 54 uint8_t u8g_dev_vs_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
iforce2d 0:972874f31c98 55 {
iforce2d 0:972874f31c98 56 switch(msg)
iforce2d 0:972874f31c98 57 {
iforce2d 0:972874f31c98 58 default:
iforce2d 0:972874f31c98 59 {
iforce2d 0:972874f31c98 60 uint8_t i;
iforce2d 0:972874f31c98 61 for( i = 0; i < u8g_vs_cnt; i++ )
iforce2d 0:972874f31c98 62 {
iforce2d 0:972874f31c98 63 u8g_call_dev_fn(u8g_vs_list[i].u8g, u8g_vs_list[i].u8g->dev, msg, arg);
iforce2d 0:972874f31c98 64 }
iforce2d 0:972874f31c98 65 }
iforce2d 0:972874f31c98 66 return 1;
iforce2d 0:972874f31c98 67 case U8G_DEV_MSG_PAGE_FIRST:
iforce2d 0:972874f31c98 68 u8g_vs_current = 0;
iforce2d 0:972874f31c98 69 if ( u8g_vs_cnt != 0 )
iforce2d 0:972874f31c98 70 return u8g_call_dev_fn(u8g_vs_list[u8g_vs_current].u8g, u8g_vs_list[u8g_vs_current].u8g->dev, msg, arg);
iforce2d 0:972874f31c98 71 return 0;
iforce2d 0:972874f31c98 72 case U8G_DEV_MSG_PAGE_NEXT:
iforce2d 0:972874f31c98 73 {
iforce2d 0:972874f31c98 74 uint8_t ret = 0;
iforce2d 0:972874f31c98 75 if ( u8g_vs_cnt != 0 )
iforce2d 0:972874f31c98 76 ret = u8g_call_dev_fn(u8g_vs_list[u8g_vs_current].u8g, u8g_vs_list[u8g_vs_current].u8g->dev, msg, arg);
iforce2d 0:972874f31c98 77 if ( ret != 0 )
iforce2d 0:972874f31c98 78 return ret;
iforce2d 0:972874f31c98 79 u8g_vs_current++; /* next device */
iforce2d 0:972874f31c98 80 if ( u8g_vs_current >= u8g_vs_cnt ) /* reached end? */
iforce2d 0:972874f31c98 81 return 0;
iforce2d 0:972874f31c98 82 return u8g_call_dev_fn(u8g_vs_list[u8g_vs_current].u8g, u8g_vs_list[u8g_vs_current].u8g->dev, U8G_DEV_MSG_PAGE_FIRST, arg);
iforce2d 0:972874f31c98 83 }
iforce2d 0:972874f31c98 84 return 0;
iforce2d 0:972874f31c98 85 case U8G_DEV_MSG_GET_WIDTH:
iforce2d 0:972874f31c98 86 *((u8g_uint_t *)arg) = u8g_vs_width;
iforce2d 0:972874f31c98 87 break;
iforce2d 0:972874f31c98 88 case U8G_DEV_MSG_GET_HEIGHT:
iforce2d 0:972874f31c98 89 *((u8g_uint_t *)arg) = u8g_vs_height;
iforce2d 0:972874f31c98 90 break;
iforce2d 0:972874f31c98 91 case U8G_DEV_MSG_GET_PAGE_BOX:
iforce2d 0:972874f31c98 92 if ( u8g_vs_current < u8g_vs_cnt )
iforce2d 0:972874f31c98 93 {
iforce2d 0:972874f31c98 94 u8g_call_dev_fn(u8g_vs_list[u8g_vs_current].u8g, u8g_vs_list[u8g_vs_current].u8g->dev, msg, arg);
iforce2d 0:972874f31c98 95 ((u8g_box_t *)arg)->x0 += u8g_vs_list[u8g_vs_current].x;
iforce2d 0:972874f31c98 96 ((u8g_box_t *)arg)->x1 += u8g_vs_list[u8g_vs_current].x;
iforce2d 0:972874f31c98 97 ((u8g_box_t *)arg)->y0 += u8g_vs_list[u8g_vs_current].y;
iforce2d 0:972874f31c98 98 ((u8g_box_t *)arg)->y1 += u8g_vs_list[u8g_vs_current].y;
iforce2d 0:972874f31c98 99 }
iforce2d 0:972874f31c98 100 else
iforce2d 0:972874f31c98 101 {
iforce2d 0:972874f31c98 102 ((u8g_box_t *)arg)->x0 = 0;
iforce2d 0:972874f31c98 103 ((u8g_box_t *)arg)->x1 = 0;
iforce2d 0:972874f31c98 104 ((u8g_box_t *)arg)->y0 = 0;
iforce2d 0:972874f31c98 105 ((u8g_box_t *)arg)->y1 = 0;
iforce2d 0:972874f31c98 106 }
iforce2d 0:972874f31c98 107 return 1;
iforce2d 0:972874f31c98 108 case U8G_DEV_MSG_SET_PIXEL:
iforce2d 0:972874f31c98 109 case U8G_DEV_MSG_SET_8PIXEL:
iforce2d 0:972874f31c98 110 if ( u8g_vs_current < u8g_vs_cnt )
iforce2d 0:972874f31c98 111 {
iforce2d 0:972874f31c98 112 ((u8g_dev_arg_pixel_t *)arg)->x -= u8g_vs_list[u8g_vs_current].x;
iforce2d 0:972874f31c98 113 ((u8g_dev_arg_pixel_t *)arg)->y -= u8g_vs_list[u8g_vs_current].y;
iforce2d 0:972874f31c98 114 return u8g_call_dev_fn(u8g_vs_list[u8g_vs_current].u8g, u8g_vs_list[u8g_vs_current].u8g->dev, msg, arg);
iforce2d 0:972874f31c98 115 }
iforce2d 0:972874f31c98 116 break;
iforce2d 0:972874f31c98 117 }
iforce2d 0:972874f31c98 118 return 1;
iforce2d 0:972874f31c98 119 }
iforce2d 0:972874f31c98 120
iforce2d 0:972874f31c98 121
iforce2d 0:972874f31c98 122
iforce2d 0:972874f31c98 123 u8g_dev_t u8g_dev_vs = { u8g_dev_vs_fn, NULL, NULL };
iforce2d 0:972874f31c98 124
iforce2d 0:972874f31c98 125 void u8g_SetVirtualScreenDimension(u8g_t *vs_u8g, u8g_uint_t width, u8g_uint_t height)
iforce2d 0:972874f31c98 126 {
iforce2d 0:972874f31c98 127 if ( vs_u8g->dev != &u8g_dev_vs )
iforce2d 0:972874f31c98 128 return; /* abort if there is no a virtual screen device */
iforce2d 0:972874f31c98 129 u8g_vs_width = width;
iforce2d 0:972874f31c98 130 u8g_vs_height = height;
iforce2d 0:972874f31c98 131 }
iforce2d 0:972874f31c98 132
iforce2d 0:972874f31c98 133 uint8_t u8g_AddToVirtualScreen(u8g_t *vs_u8g, u8g_uint_t x, u8g_uint_t y, u8g_t *child_u8g)
iforce2d 0:972874f31c98 134 {
iforce2d 0:972874f31c98 135 if ( vs_u8g->dev != &u8g_dev_vs )
iforce2d 0:972874f31c98 136 return 0; /* abort if there is no a virtual screen device */
iforce2d 0:972874f31c98 137 if ( u8g_vs_cnt >= U8g_VS_MAX )
iforce2d 0:972874f31c98 138 return 0; /* maximum number of child u8g's reached */
iforce2d 0:972874f31c98 139 u8g_vs_list[u8g_vs_cnt].u8g = child_u8g;
iforce2d 0:972874f31c98 140 u8g_vs_list[u8g_vs_cnt].x = x;
iforce2d 0:972874f31c98 141 u8g_vs_list[u8g_vs_cnt].y = y;
iforce2d 0:972874f31c98 142 u8g_vs_cnt++;
iforce2d 0:972874f31c98 143 return 1;
iforce2d 0:972874f31c98 144 }
iforce2d 0:972874f31c98 145
iforce2d 0:972874f31c98 146