391 lines
7.2 KiB
C++
391 lines
7.2 KiB
C++
/*
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The MIT License (MIT)
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Copyright (c) 2020 Kris Kasrpzak
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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On a personal note, if you develop an application or product using this library
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and make millions of dollars, I'm happy for you!
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*/
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/*
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Code by Kris Kasprzak kris.kasprzak@yahoo.com
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This library is intended to be used with any display library to eliminate the need
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to first paint a solid rectangle to fully draw numbers and letters.
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This library intelligently finds changed characters and repaints them in background
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color before drawing new text
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notes:
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1. This library is template based so it should work with most display drivers provided
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the driver supports getCursorX() methods
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2. this library will not paint correctly if a background gradient is used
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3. this library can work with int, float, char, and other data types
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ver date author comments
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1.0 6/2020 kasprzak initial code
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*/
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#ifndef FLICKER_FREE_PRINT
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#define FLICKER_FREE_PRINT
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#define FLICKER_FREE_PRINT_VER 1.0
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#if ARDUINO >= 100
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#include "Arduino.h"
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#include "Print.h"
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#else
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#include <avr/dtostrf.h>
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#include "WProgram.h"
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#endif
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#ifdef __cplusplus
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#include "Arduino.h"
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#endif
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#define BUF_LEN 30
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template<typename T1>
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class FlickerFreePrint {
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public:
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FlickerFreePrint(T1* disp, uint16_t ForeColor = 65536, uint16_t BackColor = 0)
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{
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d = disp;
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fc = ForeColor;
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bc = BackColor;
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}
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void print(const char *buf){
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olen = strlen(obuf);
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len = strlen(buf);
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blanked = false;
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c = d->getCursorX();
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for (i = 0; i < len; i++) {
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if (buf[i] != obuf[i]) {
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c = d->getCursorX();
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if (!blanked) {
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blanked = true;
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for (j = i; j <= olen; j++) {
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d->setTextColor(bc, bc);
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d->print(obuf[j]);
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}
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}
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d->setCursor(c, d->getCursorY());
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}
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d->setTextColor(fc, bc);
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d->print(buf[i]);
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}
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strcpy(obuf,buf);
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}
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void print(byte Data){
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dtostrf(Data, 0, 0, buf);
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olen = strlen(obuf);
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len = strlen(buf);
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blanked = false;
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c = d->getCursorX();
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for (i = 0; i < len; i++) {
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if (buf[i] != obuf[i]) {
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c = d->getCursorX();
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if (!blanked) {
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blanked = true;
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for (j = i; j <= olen; j++) {
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d->setTextColor(bc, bc);
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d->print(obuf[j]);
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}
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}
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d->setCursor(c, d->getCursorY());
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}
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d->setTextColor(fc, bc);
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d->print(buf[i]);
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}
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strcpy(obuf,buf);
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}
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void print(short Data){
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dtostrf(Data, 0, 0, buf);
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olen = strlen(obuf);
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len = strlen(buf);
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blanked = false;
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c = d->getCursorX();
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for (i = 0; i < len; i++) {
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if (buf[i] != obuf[i]) {
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c = d->getCursorX();
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if (!blanked) {
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blanked = true;
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for (j = i; j <= olen; j++) {
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d->setTextColor(bc, bc);
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d->print(obuf[j]);
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}
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}
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d->setCursor(c, d->getCursorY());
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}
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d->setTextColor(fc, bc);
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d->print(buf[i]);
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}
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strcpy(obuf,buf);
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}
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void print(int Data){
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dtostrf(Data, 0, 0, buf);
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olen = strlen(obuf);
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len = strlen(buf);
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blanked = false;
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c = d->getCursorX();
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for (i = 0; i < len; i++) {
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if (buf[i] != obuf[i]) {
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c = d->getCursorX();
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if (!blanked) {
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blanked = true;
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for (j = i; j <= olen; j++) {
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d->setTextColor(bc, bc);
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d->print(obuf[j]);
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}
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}
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d->setCursor(c, d->getCursorY());
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}
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d->setTextColor(fc, bc);
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d->print(buf[i]);
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}
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strcpy(obuf,buf);
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}
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void print(unsigned int Data){
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dtostrf(Data, 0, 0, buf);
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olen = strlen(obuf);
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len = strlen(buf);
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blanked = false;
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c = d->getCursorX();
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for (i = 0; i < len; i++) {
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if (buf[i] != obuf[i]) {
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c = d->getCursorX();
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if (!blanked) {
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blanked = true;
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for (j = i; j <= olen; j++) {
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d->setTextColor(bc, bc);
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d->print(obuf[j]);
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}
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}
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d->setCursor(c, d->getCursorY());
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}
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d->setTextColor(fc, bc);
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d->print(buf[i]);
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}
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strcpy(obuf,buf);
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}
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void print(long Data){
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dtostrf(Data, 0, 0, buf);
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olen = strlen(obuf);
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len = strlen(buf);
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blanked = false;
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c = d->getCursorX();
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for (i = 0; i < len; i++) {
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if (buf[i] != obuf[i]) {
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c = d->getCursorX();
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if (!blanked) {
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blanked = true;
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for (j = i; j <= olen; j++) {
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d->setTextColor(bc, bc);
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d->print(obuf[j]);
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}
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}
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d->setCursor(c, d->getCursorY());
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}
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d->setTextColor(fc, bc);
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d->print(buf[i]);
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}
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strcpy(obuf,buf);
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}
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void print(unsigned long Data){
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dtostrf(Data, 0, 0, buf);
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olen = strlen(obuf);
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len = strlen(buf);
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blanked = false;
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c = d->getCursorX();
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for (i = 0; i < len; i++) {
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if (buf[i] != obuf[i]) {
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c = d->getCursorX();
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if (!blanked) {
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blanked = true;
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for (j = i; j <= olen; j++) {
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d->setTextColor(bc, bc);
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d->print(obuf[j]);
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}
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}
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d->setCursor(c, d->getCursorY());
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}
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d->setTextColor(fc, bc);
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d->print(buf[i]);
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}
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strcpy(obuf,buf);
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}
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void print(float Data, int Dec = 2){
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dtostrf(Data, 0, Dec, buf);
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olen = strlen(obuf);
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len = strlen(buf);
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blanked = false;
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c = d->getCursorX();
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for (i = 0; i < len; i++) {
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if (buf[i] != obuf[i]) {
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c = d->getCursorX();
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if (!blanked) {
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blanked = true;
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for (j = i; j < olen; j++) {
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d->setTextColor(bc, bc);
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d->print(obuf[j]);
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}
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}
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d->setCursor(c, d->getCursorY());
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}
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d->setTextColor(fc, bc);
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d->print(buf[i]);
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}
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strcpy(obuf,buf);
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}
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void print(double Data, int Dec = 2){
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dtostrf(Data, 0, Dec, buf);
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olen = strlen(obuf);
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len = strlen(buf);
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blanked = false;
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c = d->getCursorX();
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for (i = 0; i < len; i++) {
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if (buf[i] != obuf[i]) {
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c = d->getCursorX();
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if (!blanked) {
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blanked = true;
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for (j = i; j <= olen; j++) {
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d->setTextColor(bc, bc);
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d->print(obuf[j]);
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}
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}
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d->setCursor(c, d->getCursorY());
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}
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d->setTextColor(fc, bc);
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d->print(buf[i]);
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}
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strcpy(obuf,buf);
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}
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void setTextColor(uint16_t ForeColor , uint16_t BackColor) {
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fc = ForeColor;
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bc = BackColor;
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}
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protected:
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T1 *d;
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char obuf[BUF_LEN];
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int c;
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uint16_t fc;
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uint16_t bc;
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uint16_t i;
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uint16_t j;
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char buf[BUF_LEN];
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uint16_t len;
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uint16_t olen;
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bool n = true;
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bool blanked = false;
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};
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#endif
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/////////////////////////////
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