Karl Zweimüller / TextLCDScroll

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Dependents:   RF22_MAX_test_Send

TextLCDScroll.cpp@2:66723c542cef, 2012-04-24 (annotated)

Committer:
charly
Date:
Tue Apr 24 06:18:21 2012 +0000
Revision:
2:66723c542cef
Parent:
0:0ae9963c4e06
Child:
3:1d7a7a249647
reduced priority of ticker-Interrupt, so other things come first (needed for RF22)

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 2:66723c542cef 7 TextLCDScroll::TextLCDScroll(PinName rs, PinName e, PinName d4, PinName d5,
charly 2:66723c542cef 8 PinName d6, PinName d7, TextLCD::LCDType type): TextLCD(rs,e,d4,d5,d6,d7,type) {
charly 0:0ae9963c4e06 9
charly 2:66723c542cef 10 _direction = new int[rows()];
charly 2:66723c542cef 11 _actPos = new int[rows()];
charly 2:66723c542cef 12 _stringArray = new string[rows()];
charly 2:66723c542cef 13 for (int i=0; i<rows(); i++) {
charly 2:66723c542cef 14 _direction[i]=1;
charly 2:66723c542cef 15 _actPos[i] = 0;
charly 2:66723c542cef 16 _stringArray[i] = "";
charly 2:66723c542cef 17 }
charly 2:66723c542cef 18 _spaces = string(columns(),' ');
charly 2:66723c542cef 19 //_mode = leftright;
charly 2:66723c542cef 20 _mode = left;
charly 0:0ae9963c4e06 21
charly 2:66723c542cef 22 setSpeed(5);
charly 0:0ae9963c4e06 23
charly 2:66723c542cef 24 // reduce interrupt level for the ticker timers. so other things (RF22 ) come first
charly 2:66723c542cef 25 NVIC_SetPriority(TIMER3_IRQn, 10);
charly 2:66723c542cef 26
charly 2:66723c542cef 27 }
charly 0:0ae9963c4e06 28
charly 0:0ae9963c4e06 29
charly 2:66723c542cef 30 bool TextLCDScroll::setLine( int Line, string str) {
charly 2:66723c542cef 31 if (Line >= 0 && Line < rows()) {
charly 2:66723c542cef 32 if ((str.length() > columns()) && (_mode == left))
charly 2:66723c542cef 33 _stringArray[Line] = _spaces + str + _spaces;
charly 2:66723c542cef 34 else
charly 2:66723c542cef 35 _stringArray[Line] = str;
charly 2:66723c542cef 36
charly 2:66723c542cef 37 // be sure to refresh the display
charly 2:66723c542cef 38 cls();
charly 2:66723c542cef 39 // start at beginning again
charly 2:66723c542cef 40 _actPos[Line] = 0;
charly 2:66723c542cef 41 _direction[Line] =1;
charly 2:66723c542cef 42 return(true);
charly 2:66723c542cef 43 } else {
charly 2:66723c542cef 44 return (false);
charly 2:66723c542cef 45 }
charly 2:66723c542cef 46 }
charly 0:0ae9963c4e06 47
charly 2:66723c542cef 48 bool TextLCDScroll::setSpeed( int speed) {
charly 2:66723c542cef 49 if ((speed >= 0.1) && (speed <= 10)) {
charly 2:66723c542cef 50 tick.detach();
charly 2:66723c542cef 51 if (_mode == leftright)
charly 2:66723c542cef 52 tick.attach(this,&TextLCDScroll::ScrollRightLeft, 1.0/speed);
charly 2:66723c542cef 53 else
charly 2:66723c542cef 54 tick.attach(this,&TextLCDScroll::ScrollLeft, 1.0/speed);
charly 2:66723c542cef 55 return(true);
charly 2:66723c542cef 56 } else {
charly 2:66723c542cef 57 return(false);
charly 2:66723c542cef 58 }
charly 2:66723c542cef 59 }
charly 2:66723c542cef 60
charly 2:66723c542cef 61 bool TextLCDScroll::setScrollMode( ScrollModes mode) {
charly 2:66723c542cef 62 _mode = mode;
charly 2:66723c542cef 63 return(true);
charly 2:66723c542cef 64 }
charly 2:66723c542cef 65
charly 2:66723c542cef 66 void TextLCDScroll::ScrollRightLeft() {
charly 2:66723c542cef 67 int i;
charly 2:66723c542cef 68 for (i=0; i<rows(); i++) {
charly 2:66723c542cef 69 locate(0,i);
charly 2:66723c542cef 70 if (_stringArray[i].length() > columns()) {
charly 2:66723c542cef 71 printf(_stringArray[i].substr(_actPos[i],columns()).c_str());
charly 2:66723c542cef 72 if (_direction[i] == 1) {
charly 2:66723c542cef 73 if (_stringArray[i].length() > _actPos[i]+columns()) {
charly 2:66723c542cef 74 _actPos[i] += 1;
charly 2:66723c542cef 75 } else {
charly 2:66723c542cef 76 _direction[i] = -1;
charly 2:66723c542cef 77 }
charly 2:66723c542cef 78 } else {
charly 2:66723c542cef 79 if (_actPos[i] > 0) {
charly 2:66723c542cef 80 _actPos[i] -= 1;
charly 2:66723c542cef 81 } else {
charly 2:66723c542cef 82 _direction[i]=1;
charly 2:66723c542cef 83 }
charly 2:66723c542cef 84 }
charly 0:0ae9963c4e06 85 } else {
charly 2:66723c542cef 86 printf(_stringArray[i].c_str());
charly 0:0ae9963c4e06 87 }
charly 0:0ae9963c4e06 88 }
charly 2:66723c542cef 89 }
charly 0:0ae9963c4e06 90
charly 2:66723c542cef 91 void TextLCDScroll::ScrollLeft() {
charly 2:66723c542cef 92 int i;
charly 2:66723c542cef 93 for (i=0; i<rows(); i++) {
charly 2:66723c542cef 94 locate(0,i);
charly 2:66723c542cef 95 if (_stringArray[i].length() > columns()) {
charly 2:66723c542cef 96 printf(_stringArray[i].substr(_actPos[i],columns()).c_str());
charly 2:66723c542cef 97 if (_direction[i] == 1) {
charly 2:66723c542cef 98 if (_stringArray[i].length() > _actPos[i]+columns()) {
charly 2:66723c542cef 99 _actPos[i] += 1;
charly 0:0ae9963c4e06 100 } else {
charly 2:66723c542cef 101 _actPos[i]=0;
charly 0:0ae9963c4e06 102 }
charly 0:0ae9963c4e06 103 }
charly 2:66723c542cef 104 } else {
charly 2:66723c542cef 105 printf(_stringArray[i].c_str());
charly 0:0ae9963c4e06 106 }
charly 0:0ae9963c4e06 107 }
charly 2:66723c542cef 108 }
charly 0:0ae9963c4e06 109