Code part for more chart plots

2026-02-12 07:33:07 +01:00 · 2025-09-12 18:42:49 +02:00
parent be946440d3
commit b3e2dea45b
4 changed files with 393 additions and 204 deletions
--- a/lib/obp60task/OBPcharts.h
+++ b/lib/obp60task/OBPcharts.h
@@ -0,0 +1,103 @@
+// 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);
+};