搭建PVB架构，实现前端的基础布局、菜单、表格、图示等功能

2026-05-27 18:59:26 +08:00 · 2025-08-20 19:00:22 +08:00
parent 5de7687bcc
commit 7e965b6fb4
142 changed files with 28270 additions and 411 deletions
--- a/libs/pvb/include/rllib/rlhistoryreader.h
+++ b/libs/pvb/include/rllib/rlhistoryreader.h
@@ -0,0 +1,106 @@
+/***************************************************************************
+                       rlhistoryreader.h  -  description
+                             -------------------
+    begin                : Wed Dec 06 2006
+    copyright            : (C) 2006 by R. Lehrig
+    email                : lehrig@t-online.de
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as        *
+ *   published by the Free Software Foundation                             *
+ *                                                                         *
+ ***************************************************************************/
+#ifndef _RL_HISTORY_READER_H_
+#define _RL_HISTORY_READER_H_
+
+#include "rldefine.h"
+#include "rltime.h"
+#include <stdio.h>
+
+typedef struct _rlHistoryReaderLine_
+{
+  _rlHistoryReaderLine_ *next;
+  char *line;
+}rlHistoryReaderLine;
+
+/*! <pre>
+This class reads tab separated text including time stamp from 10 csv files
+Use it together with rlHistoryLogger.
+
+Example usage within pvbrowser slot function:
+
+#include "rlhistoryreader.h"
+
+typedef struct // (todo: define your data structure here)
+{
+  rlHistoryReader hist;
+}
+DATA;
+
+...snip...
+
+static int slotButtonEvent(PARAM *p, int id, DATA *d)
+{
+  if(p == NULL || id == 0 || d == NULL) return -1;
+  if(id == buttonShowPlot)
+  {
+    rlTime tStart, tDiff, tEnd;
+    tStart.year  = 2009;
+    tStart.month = 8;
+    tStart.day   = 29;
+    tStart.hour  = 0;
+
+    tDiff.hour = 24;
+
+    tEnd = tStart + tDiff;
+
+    printf("start=%s diff=%s end=%s\n",tStart.getTimeString(), tDiff.getTimeString(), tEnd.getTimeString());
+
+    if(d->hist.read("test", &tStart, &tEnd) < 0)
+    {
+      printf("could not read test csv file\n");
+      return 0;
+    }
+    const char *line = d->hist.firstLine();
+    while(*line != '\\0')
+    {
+      printf("line=%s", line);
+      const char *values = strchr(line,'\t');
+      if(values != NULL)
+      {
+        float val1, val2;
+        sscanf(values,"\t%f\t%f", &val1, &val2);
+        printf("val1=%f val2=%f\n", val1, val2);
+        //// fill your buffer for plotting here
+      }
+      line = d->hist.nextLine();
+    }
+    //// display your xy-graphic from the filled buffer here
+  }
+  return 0;
+}
+</pre> */
+class rlHistoryReader
+{
+public:
+  rlHistoryReader();
+  virtual ~rlHistoryReader();
+  int read(const char *csvName, rlTime *start, rlTime *end);
+  const char *firstLine();
+  const char *nextLine();
+  int clean();
+  int cat(const char *csvName, FILE *fout);
+  int debug;
+private:
+  int openFile();
+  int pushLineToMemory(const char *line);
+  rlHistoryReaderLine *first_line,*current_line;
+  rlTime time;
+  FILE *fin;
+  int current_file;
+  char *csv_name, *csv_file_name;
+};
+#endif