c2c780666cf30f764fe4eb81b7fad350b0a7391a
kate
  Thu Mar 8 15:56:39 2018 -0800
Add trackDb setting to indicate if there is a direction to the interaction (interactDirectional). refs #17512

diff --git src/hg/hgc/interactClick.c src/hg/hgc/interactClick.c
index e9b5b38..a65a7ca0 100644
--- src/hg/hgc/interactClick.c
+++ src/hg/hgc/interactClick.c
@@ -1,142 +1,174 @@
 /* Details page for interact type tracks */
 
 /* Copyright (C) 2018 The Regents of the University of California 
  * See README in this or parent directory for licensing information. */
 
 #include "common.h"
 #include "obscure.h"
 #include "hdb.h"
 #include "hgc.h"
 
 #include "interact.h"
 #include "interactUi.h"
 
 static struct interact *getInteractFromTable(struct trackDb *tdb, char *item, 
                                                 char *chrom, int start, int end)
 /* Retrieve this item from track table */
 {
 struct sqlConnection *conn = NULL;
 struct customTrack *ct = lookupCt(tdb->track);
 char *table;
 if (ct != NULL)
     {
     conn = hAllocConn(CUSTOM_TRASH);
     table = ct->dbTableName;
     }
 else
     {
     conn = hAllocConnTrack(database, tdb);
     table = tdb->table;
     }
 if (conn == NULL)
     return NULL;
 
 struct interact *inters = NULL, *inter;
 char **row;
 int offset;
 char where[512];
 if (isNotEmpty(item))
     sqlSafefFrag(where, sizeof(where), "name='%s'", item);
 struct sqlResult *sr = hRangeQuery(conn, table, chrom, start, end, where, &offset);
 while ((row = sqlNextRow(sr)) != NULL)
     {
     inter = interactLoad(row+offset);
     slAddHead(&inters, inter);
     }
 slReverse(&inters);
 sqlFreeResult(&sr);
 hFreeConn(&conn);
 return inters;
 }
 
 static struct interact *getInteractFromFile(char *file, char *item, char *chrom, int start, int end)
 /* Retrieve interact BED item from big file */
 {
 struct bbiFile *bbi = bigBedFileOpen(file);
 struct lm *lm = lmInit(0);
 struct bigBedInterval *bb, *bbList =  bigBedIntervalQuery(bbi, chrom, start, end, 0, lm);
 for (bb = bbList; bb != NULL; bb = bb->next)
     {
     char startBuf[16], endBuf[16];
     char *row[32];
     bigBedIntervalToRow(bb, chrom, startBuf, endBuf, row, ArraySize(row));
     struct interact *interact = interactLoad(row);
     if (interact == NULL)
         continue;
     if (sameString(interact->name, item))
         return interact;
     }
 return NULL;
 }
 
 static struct interact *getInteract(struct trackDb *tdb, char *item, 
                                         char *chrom, int start, int end)
 /* Retrieve interact BED item from track */
 {
 struct interact *interact = NULL;
 char *file = trackDbSetting(tdb, "bigDataUrl");
 if (file != NULL)
     interact = getInteractFromFile(file, item, chrom, start, end);
 else
     interact = getInteractFromTable(tdb, item, chrom, start, end);
 return interact;
 }
 
 
 void doInteractDetails(struct trackDb *tdb, char *item)
 /* Details of interaction item */
 {
 char *chrom = cartString(cart, "c");
 int start = cartInt(cart, "o");
 int end = cartInt(cart, "t");
 struct interact *inter = getInteract(tdb, item, chrom, start, end);
 if (inter == NULL)
     errAbort("Can't find interaction '%s'", item);
 genericHeader(tdb, item);
 
 char startBuf[1024], endBuf[1024], sizeBuf[1024];
 if (isNotEmpty(inter->name))
     printf("<b>Interaction name:</b> %s<br>\n", inter->name);
 printf("<b>Interaction region:</b> ");
 if (interactOtherChrom(inter))
     printf("across chromosomes<br>");
 else
     {
     sprintLongWithCommas(startBuf, inter->chromStart+1);
     sprintLongWithCommas(endBuf, inter->chromEnd);
     sprintLongWithCommas(sizeBuf, inter->chromEnd - inter->chromStart);
     printf("<a href='hgTracks?position=%s:%d-%d' target='_blank'>%s:%s-%s</a>", 
                 inter->chrom, inter->chromStart, inter->chromEnd,
                 inter->chrom, startBuf, endBuf);
     printf("&nbsp;&nbsp;%s bp<br>\n", sizeBuf);
     }
 printf("<b>Score:</b> %d<br>\n", inter->score);
 printf("<b>Value:</b> %0.3f<br>\n", inter->value);
 if (isNotEmpty(inter->exp))
     printf("<b>Experiment:</b> %s<br>\n", inter->exp);
 puts("<p>");
 
-sprintLongWithCommas(startBuf, inter->sourceStart+1);
-sprintLongWithCommas(endBuf, inter->sourceEnd);
-sprintLongWithCommas(sizeBuf, inter->sourceEnd - inter->sourceStart);
-// TODO: Change labels if non-directional
-printf("<b>Source region:</b> %s&nbsp;&nbsp;"
+/* print info for both regions */
+/* Use different labels:
+        1) directional (source/target)
+        2) non-directional same chrom (lower/upper)
+        3) non-directional other chrom (this/other)
+*/
+char *region1Label = "Source";
+char *region1Chrom = inter->sourceChrom;
+int region1Start = inter->sourceStart;
+int region1End = inter->sourceEnd;
+char *region1Name = inter->sourceName;
+
+char *region2Label = "Target";
+char *region2Chrom = inter->targetChrom;
+int region2Start = inter->targetStart;
+int region2End = inter->targetEnd;
+char *region2Name = inter->targetName;
+
+if (!interactUiDirectional(tdb))
+    {
+    if (interactOtherChrom(inter))
+        {
+        region1Label = "This";
+        region2Label = "Other";
+        }
+    else
+        {
+        region1Label = "Lower";
+        region2Label = "Upper";
+        }
+    }
+
+sprintLongWithCommas(startBuf, region1Start + 1);
+sprintLongWithCommas(endBuf, region1End);
+sprintLongWithCommas(sizeBuf, region1End - region1Start);
+printf("<b>%s region:</b> %s&nbsp;&nbsp;"
                 "<a href='hgTracks?position=%s:%d-%d' target='_blank'>%s:%s-%s</a>",
-                inter->sourceName, inter->sourceChrom, inter->sourceStart+1, inter->sourceEnd,
-                inter->sourceChrom, startBuf, endBuf);
+                region1Label, region1Name, region1Chrom, region1Start+1, region1End,
+                region1Chrom, startBuf, endBuf);
 printf("&nbsp;&nbsp;%s bp<br>\n", sizeBuf);
-sprintLongWithCommas(startBuf, inter->targetStart+1);
-sprintLongWithCommas(endBuf, inter->targetEnd);
-sprintLongWithCommas(sizeBuf, inter->targetEnd - inter->targetStart);
-printf("<b>Target region:</b> %s&nbsp;&nbsp;"
+
+sprintLongWithCommas(startBuf, region2Start+1);
+sprintLongWithCommas(endBuf, region2End);
+sprintLongWithCommas(sizeBuf, region2End - region2Start);
+printf("<b>%s region:</b> %s&nbsp;&nbsp;"
                 "<a href='hgTracks?position=%s:%d-%d' target='_blank'>%s:%s-%s</a>",
-                inter->targetName, inter->targetChrom, inter->targetStart+1, inter->targetEnd,
-                inter->targetChrom, startBuf, endBuf);
+                region2Label, region2Name, region2Chrom, region2Start+1, region2End,
+                region2Chrom, startBuf, endBuf);
 printf("&nbsp;&nbsp;%s bp<br>\n", sizeBuf);
-#ifdef TODO
-/* TODO: get count and score stats of all interactions in window ?*/
+
+#ifdef TODO /* TODO: get count and score stats of all interactions in window ?*/
 double *scores;
 AllocArray(scores, count);
 #endif
 }