iforce2d Chris / Mbed 2 deprecated ubxDistanceMeter

Displays distance to start location on OLED screen.

Dependencies:   mbed

u8g_page.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_page.c
iforce2d 0:972874f31c98 4
iforce2d 0:972874f31c98 5 page helper functions, only called by the dev handler.
iforce2d 0:972874f31c98 6
iforce2d 0:972874f31c98 7 Universal 8bit Graphics Library
iforce2d 0:972874f31c98 8
iforce2d 0:972874f31c98 9 Copyright (c) 2011, olikraus@gmail.com
iforce2d 0:972874f31c98 10 All rights reserved.
iforce2d 0:972874f31c98 11
iforce2d 0:972874f31c98 12 Redistribution and use in source and binary forms, with or without modification,
iforce2d 0:972874f31c98 13 are permitted provided that the following conditions are met:
iforce2d 0:972874f31c98 14
iforce2d 0:972874f31c98 15 * Redistributions of source code must retain the above copyright notice, this list
iforce2d 0:972874f31c98 16 of conditions and the following disclaimer.
iforce2d 0:972874f31c98 17
iforce2d 0:972874f31c98 18 * Redistributions in binary form must reproduce the above copyright notice, this
iforce2d 0:972874f31c98 19 list of conditions and the following disclaimer in the documentation and/or other
iforce2d 0:972874f31c98 20 materials provided with the distribution.
iforce2d 0:972874f31c98 21
iforce2d 0:972874f31c98 22 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
iforce2d 0:972874f31c98 23 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
iforce2d 0:972874f31c98 24 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
iforce2d 0:972874f31c98 25 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
iforce2d 0:972874f31c98 26 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
iforce2d 0:972874f31c98 27 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
iforce2d 0:972874f31c98 28 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
iforce2d 0:972874f31c98 29 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
iforce2d 0:972874f31c98 30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
iforce2d 0:972874f31c98 31 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
iforce2d 0:972874f31c98 32 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
iforce2d 0:972874f31c98 33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
iforce2d 0:972874f31c98 34 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
iforce2d 0:972874f31c98 35
iforce2d 0:972874f31c98 36
iforce2d 0:972874f31c98 37 */
iforce2d 0:972874f31c98 38
iforce2d 0:972874f31c98 39 #include "u8g.h"
iforce2d 0:972874f31c98 40
iforce2d 0:972874f31c98 41 /*
iforce2d 0:972874f31c98 42 setup page count structure
iforce2d 0:972874f31c98 43 conditions: page_height <= total_height
iforce2d 0:972874f31c98 44 */
iforce2d 0:972874f31c98 45 void u8g_page_Init(u8g_page_t *p, u8g_uint_t page_height, u8g_uint_t total_height )
iforce2d 0:972874f31c98 46 {
iforce2d 0:972874f31c98 47 p->page_height = page_height;
iforce2d 0:972874f31c98 48 p->total_height = total_height;
iforce2d 0:972874f31c98 49 p->page = 0;
iforce2d 0:972874f31c98 50 u8g_page_First(p);
iforce2d 0:972874f31c98 51 }
iforce2d 0:972874f31c98 52
iforce2d 0:972874f31c98 53 void u8g_page_First(u8g_page_t *p)
iforce2d 0:972874f31c98 54 {
iforce2d 0:972874f31c98 55 p->page_y0 = 0;
iforce2d 0:972874f31c98 56 p->page_y1 = p->page_height;
iforce2d 0:972874f31c98 57 p->page_y1--;
iforce2d 0:972874f31c98 58 p->page = 0;
iforce2d 0:972874f31c98 59 }
iforce2d 0:972874f31c98 60
iforce2d 0:972874f31c98 61 uint8_t u8g_page_Next(u8g_page_t * p)
iforce2d 0:972874f31c98 62 {
iforce2d 0:972874f31c98 63 register u8g_uint_t y1;
iforce2d 0:972874f31c98 64 p->page_y0 += p->page_height;
iforce2d 0:972874f31c98 65 if ( p->page_y0 >= p->total_height )
iforce2d 0:972874f31c98 66 return 0;
iforce2d 0:972874f31c98 67 p->page++;
iforce2d 0:972874f31c98 68 y1 = p->page_y1;
iforce2d 0:972874f31c98 69 y1 += p->page_height;
iforce2d 0:972874f31c98 70 if ( y1 >= p->total_height )
iforce2d 0:972874f31c98 71 {
iforce2d 0:972874f31c98 72 y1 = p->total_height;
iforce2d 0:972874f31c98 73 y1--;
iforce2d 0:972874f31c98 74 }
iforce2d 0:972874f31c98 75 p->page_y1 = y1;
iforce2d 0:972874f31c98 76
iforce2d 0:972874f31c98 77 return 1;
iforce2d 0:972874f31c98 78 }
iforce2d 0:972874f31c98 79
iforce2d 0:972874f31c98 80
iforce2d 0:972874f31c98 81
iforce2d 0:972874f31c98 82