b2acdf83569bcb30013ed09d885d3f48b19c1d4e
jcasper
  Wed Sep 11 16:03:26 2019 -0700
Better support for hic composite tracks, and hic trackUi pages now include
metadata from the file, refs #22316

diff --git src/hg/inc/hic.h src/hg/inc/hic.h
index 190d4d9..b2b7ac2 100644
--- src/hg/inc/hic.h
+++ src/hg/inc/hic.h
@@ -1,31 +1,34 @@
 /* hic.h contains a few helpful wrapper functions for managing Hi-C data. */
 
 #ifndef HIC_H
 #define HIC_H
 
 #include "interact.h"
 
 /* Metadata associated with a Hi-C track */
 struct hicMeta
 {
 char *filename;
 char *fileAssembly;
-char **chromNames;
 int nChroms;
-char **resolutions;
+char **chromNames;
+int *chromSizes;
 int nRes;
+char **resolutions;
+int nAttributes;
+char **attributes;
 char *ucscAssembly;
 struct hash *ucscToAlias; // Takes UCSC chrom names to names the underlying file recognizes
 };
 
 char *hicLoadHeader(char *filename, struct hicMeta **header, char *ucscAssembly);
 /* Create a hicMeta structure for the supplied Hi-C file.  If
  * the return value is non-NULL, it points to a string containing
  * an error message that explains why the retrieval failed. */
 
 char *hicLoadData(struct hicMeta *fileInfo, int resolution, char *normalization, char *chrom1,
     int start1, int end1, char *chrom2, int start2, int end2, struct interact **resultPtr);
 /* Fetch heatmap data from a hic file.  The hic file info must be provided in fileInfo, which should be
  * populated by hicLoadHeader.  The result is a linked list of interact structures in *resultPtr,
  * and the return value (if non-NULL) is the text of any error message encountered by the underlying
  * Straw library. */