Karl Zweimüller / TextLCDScroll

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Dependents:   RF22_MAX_test_Send

TextLCDScroll.cpp@0:0ae9963c4e06, 2012-03-27 (annotated)

Committer:
charly
Date:
Tue Mar 27 20:13:41 2012 +0000
Revision:
0:0ae9963c4e06
Child:
2:66723c542cef
Initial version of TextLCDScroll

Who changed what in which revision?

UserRevisionLine numberNew contents of line
charly 0:0ae9963c4e06 1 #include "TextLCDScroll.h"
charly 0:0ae9963c4e06 2 #include "mbed.h"
charly 0:0ae9963c4e06 3
charly 0:0ae9963c4e06 4 #include <string>
charly 0:0ae9963c4e06 5 using namespace std;
charly 0:0ae9963c4e06 6
charly 0:0ae9963c4e06 7 TextLCDScroll::TextLCDScroll(PinName rs, PinName e, PinName d4, PinName d5,
charly 0:0ae9963c4e06 8 PinName d6, PinName d7, TextLCD::LCDType type): TextLCD(rs,e,d4,d5,d6,d7,type) {
charly 0:0ae9963c4e06 9
charly 0:0ae9963c4e06 10 _direction = new int[rows()];
charly 0:0ae9963c4e06 11 _actPos = new int[rows()];
charly 0:0ae9963c4e06 12 _stringArray = new string[rows()];
charly 0:0ae9963c4e06 13 for (int i=0; i<rows(); i++) {
charly 0:0ae9963c4e06 14 _direction[i]=1;
charly 0:0ae9963c4e06 15 _actPos[i] = 0;
charly 0:0ae9963c4e06 16 _stringArray[i] = "";
charly 0:0ae9963c4e06 17 }
charly 0:0ae9963c4e06 18 _spaces = string(columns(),' ');
charly 0:0ae9963c4e06 19 //_mode = leftright;
charly 0:0ae9963c4e06 20 _mode = left;
charly 0:0ae9963c4e06 21
charly 0:0ae9963c4e06 22 setSpeed(5);
charly 0:0ae9963c4e06 23
charly 0:0ae9963c4e06 24 }
charly 0:0ae9963c4e06 25
charly 0:0ae9963c4e06 26
charly 0:0ae9963c4e06 27 bool TextLCDScroll::setLine( int Line, string str) {
charly 0:0ae9963c4e06 28 if (Line >= 0 && Line < rows()) {
charly 0:0ae9963c4e06 29 if ((str.length() > columns()) && (_mode == left))
charly 0:0ae9963c4e06 30 _stringArray[Line] = _spaces + str + _spaces;
charly 0:0ae9963c4e06 31 else
charly 0:0ae9963c4e06 32 _stringArray[Line] = str;
charly 0:0ae9963c4e06 33
charly 0:0ae9963c4e06 34 // be sure to refresh the display
charly 0:0ae9963c4e06 35 cls();
charly 0:0ae9963c4e06 36 // start at beginning again
charly 0:0ae9963c4e06 37 _actPos[Line] = 0;
charly 0:0ae9963c4e06 38 _direction[Line] =1;
charly 0:0ae9963c4e06 39 return(true);
charly 0:0ae9963c4e06 40 } else {
charly 0:0ae9963c4e06 41 return (false);
charly 0:0ae9963c4e06 42 }
charly 0:0ae9963c4e06 43 }
charly 0:0ae9963c4e06 44
charly 0:0ae9963c4e06 45 bool TextLCDScroll::setSpeed( int speed) {
charly 0:0ae9963c4e06 46 if ((speed >= 0.1) && (speed <= 10)) {
charly 0:0ae9963c4e06 47 tick.detach();
charly 0:0ae9963c4e06 48 if (_mode == leftright)
charly 0:0ae9963c4e06 49 tick.attach(this,&TextLCDScroll::ScrollRightLeft, 1.0/speed);
charly 0:0ae9963c4e06 50 else
charly 0:0ae9963c4e06 51 tick.attach(this,&TextLCDScroll::ScrollLeft, 1.0/speed);
charly 0:0ae9963c4e06 52 return(true);
charly 0:0ae9963c4e06 53 } else {
charly 0:0ae9963c4e06 54 return(false);
charly 0:0ae9963c4e06 55 }
charly 0:0ae9963c4e06 56 }
charly 0:0ae9963c4e06 57
charly 0:0ae9963c4e06 58 bool TextLCDScroll::setScrollMode( ScrollModes mode) {
charly 0:0ae9963c4e06 59 _mode = mode;
charly 0:0ae9963c4e06 60 return(true);
charly 0:0ae9963c4e06 61 }
charly 0:0ae9963c4e06 62
charly 0:0ae9963c4e06 63 void TextLCDScroll::ScrollRightLeft() {
charly 0:0ae9963c4e06 64 int i;
charly 0:0ae9963c4e06 65 for (i=0; i<rows(); i++) {
charly 0:0ae9963c4e06 66 locate(0,i);
charly 0:0ae9963c4e06 67 if (_stringArray[i].length() > columns()) {
charly 0:0ae9963c4e06 68 printf(_stringArray[i].substr(_actPos[i],columns()).c_str());
charly 0:0ae9963c4e06 69 if (_direction[i] == 1) {
charly 0:0ae9963c4e06 70 if (_stringArray[i].length() > _actPos[i]+columns()) {
charly 0:0ae9963c4e06 71 _actPos[i] += 1;
charly 0:0ae9963c4e06 72 } else {
charly 0:0ae9963c4e06 73 _direction[i] = -1;
charly 0:0ae9963c4e06 74 }
charly 0:0ae9963c4e06 75 } else {
charly 0:0ae9963c4e06 76 if (_actPos[i] > 0) {
charly 0:0ae9963c4e06 77 _actPos[i] -= 1;
charly 0:0ae9963c4e06 78 } else {
charly 0:0ae9963c4e06 79 _direction[i]=1;
charly 0:0ae9963c4e06 80 }
charly 0:0ae9963c4e06 81 }
charly 0:0ae9963c4e06 82 } else {
charly 0:0ae9963c4e06 83 printf(_stringArray[i].c_str());
charly 0:0ae9963c4e06 84 }
charly 0:0ae9963c4e06 85 }
charly 0:0ae9963c4e06 86 }
charly 0:0ae9963c4e06 87
charly 0:0ae9963c4e06 88 void TextLCDScroll::ScrollLeft() {
charly 0:0ae9963c4e06 89 int i;
charly 0:0ae9963c4e06 90 for (i=0; i<rows(); i++) {
charly 0:0ae9963c4e06 91 locate(0,i);
charly 0:0ae9963c4e06 92 if (_stringArray[i].length() > columns()) {
charly 0:0ae9963c4e06 93 printf(_stringArray[i].substr(_actPos[i],columns()).c_str());
charly 0:0ae9963c4e06 94 if (_direction[i] == 1) {
charly 0:0ae9963c4e06 95 if (_stringArray[i].length() > _actPos[i]+columns()) {
charly 0:0ae9963c4e06 96 _actPos[i] += 1;
charly 0:0ae9963c4e06 97 } else {
charly 0:0ae9963c4e06 98 _actPos[i]=0;
charly 0:0ae9963c4e06 99 }
charly 0:0ae9963c4e06 100 }
charly 0:0ae9963c4e06 101 } else {
charly 0:0ae9963c4e06 102 printf(_stringArray[i].c_str());
charly 0:0ae9963c4e06 103 }
charly 0:0ae9963c4e06 104 }
charly 0:0ae9963c4e06 105 }
charly 0:0ae9963c4e06 106