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esp32-nmea2000-obp60/lib/obp60task/OBPcharts.h
2025-09-12 18:42:49 +02:00

103 lines
3.3 KiB
C++

// Function lib for display of boat data in various chart formats
#pragma once
#include "OBP60Extensions.h"
#include "Pagedata.h"
// #include "OBPDataOperations.h"
// #include "OBPRingBuffer.h"
struct Point {
int x;
int y;
};
class Chart {
protected:
RingBuffer<uint16_t>* dataBuf; // Buffer to display
GwApi::BoatValue* bValue; // Present value to display additionally to chart
int8_t chrtDir; // Chart direction: [0] = vertical, [1] = horizontal
int8_t chrtSze; // Chart size: [0] = full size, [1] = half size left/top, [2] half size right/bottom
int8_t chrtIntv; // Chart time interval: [4] 4 min., [8] 8 min., [12] 12 min., [16] 16 min., [32] 32 min.
int dfltRng; // Default range of chart, e.g. 30 = [0..30]
int top = 48; // display top header lines
int bottom = 22; // display bottom lines
int gap = 4; // gap between 2 charts; actual gap is 2x <gap>
int cWidth;
int cHeight;
Point cStart; // start point for chart area
int cLines; // number of chart lines
int xCenter; // x center point of chart
String dbName, dbFormat;
int16_t dbMAX_VAL;
size_t bufSize;
GwApi::BoatValue* bValue;
public:
Chart(RingBuffer<uint16_t>* dataBuf, GwApi::BoatValue* bValue, int8_t chrtDir, int8_t chrtSz, int8_t chrtIntv, int dfltRng, GwLog* logger)
: dataBuf(dataBuf)
, bValue(bValue)
, chrtDir(chrtDir)
, chrtSze(chrtSze)
, chrtIntv(chrtIntv)
, dfltRng(dfltRng)
{
cWidth = getdisplay().width();
cHeight = getdisplay().height();
cHeight = cHeight - top - bottom;
if (chrtDir == 0) {
// vertical chart
switch (chrtSze) {
case 0:
// default is already set
break;
case 1:
cWidth = cWidth;
cHeight = cHeight / 2 - gap;
cStart = { 30, cHeight + top };
break;
case 2:
cWidth = cWidth;
cHeight = cHeight / 2 - gap;
cStart = { cWidth + gap, top };
break;
default:
LOG_DEBUG(GwLog::DEBUG, "displayChart: wrong parameter");
return;
}
} else if (chrtDir == 1) {
// horizontal chart
switch (chrtSze) {
case 0:
cStart = { 0, cHeight - bottom };
break;
case 1:
cWidth = cWidth / 2 - gap;
cHeight = cHeight;
cStart = { 0, cHeight - bottom };
break;
case 2:
cWidth = cWidth / 2 - gap;
cHeight = cHeight;
cStart = { cWidth + gap, cHeight - bottom };
break;
default:
LOG_DEBUG(GwLog::DEBUG, "displayChart: wrong parameter");
return;
}
} else {
LOG_DEBUG(GwLog::DEBUG, "displayChart: wrong parameter");
return;
}
xCenter = cWidth / 2;
cLines = cHeight - 22;
dataBuf->getMetaData(dbName, dbFormat);
dbMAX_VAL = dataBuf->getMaxVal();
bufSize = dataBuf->getCapacity();
bValue->setFormat(dataBuf->getFormat());
};
void drawChrtHdr();
void drawChrtGrd(const int chrtRng);
bool drawChrt(int8_t chrtIntv, int dfltRng);
};