src/hg/lib/customFactory.c 1.110

Index: src/hg/lib/customFactory.c
===================================================================
RCS file: /projects/compbio/cvsroot/kent/src/hg/lib/customFactory.c,v
retrieving revision 1.109
retrieving revision 1.110
diff -b -B -U 4 -r1.109 -r1.110
--- src/hg/lib/customFactory.c	9 Nov 2009 22:31:15 -0000	1.109
+++ src/hg/lib/customFactory.c	10 Nov 2009 05:39:34 -0000	1.110
@@ -25,8 +25,9 @@
 #include "trashDir.h"
 #include "jsHelper.h"
 #include "encode/encodePeak.h"
 #include "udc.h"
+#include "bbiFile.h"
 #include "bigWig.h"
 #include "bigBed.h"
 #ifdef USE_BAM
 #include "bamFile.h"
@@ -1446,8 +1447,26 @@
 {
 return (sameType(type, "bigWig"));
 }
 
+void setBbiViewLimits(struct customTrack *track)
+/* If there are no viewLimits sets, set them from bbiFile info. */
+{
+struct hash *settings = track->tdb->settingsHash;
+if (hashLookup(settings, "viewLimits") == NULL)
+    {
+    struct bbiSummaryElement sum = bbiTotalSummary(track->bbiFile);
+    if (sum.minVal == sum.maxVal)
+	{
+	sum.minVal += 1;
+	sum.maxVal -= 1;
+	}
+    char text[32];
+    safef(text, sizeof(text), "%f:%f", sum.minVal, sum.maxVal);
+    hashAdd(settings, "viewLimits", cloneString(text));
+    }
+}
+
 static struct customTrack *bigWigLoader(struct customFactory *fac,  
 	struct hash *chromHash,
     	struct customPp *cpp, struct customTrack *track, boolean dbRequested)
 /* Load up wiggle data until get next track line. */
@@ -1456,10 +1475,10 @@
 struct hash *settings = track->tdb->settingsHash;
 char *bigDataUrl = hashFindVal(settings, "bigDataUrl");
 if (bigDataUrl == NULL)
     errAbort("Missing bigDataUrl setting from track of type=bigWig");
-struct bbiFile *bbi = bigWigFileOpen(bigDataUrl);	// Just for error checking
-bbiFileClose(&bbi);
+track->bbiFile = bigWigFileOpen(bigDataUrl);
+setBbiViewLimits(track);
 return track;
 }
 
 static struct customFactory bigWigFactory = 
@@ -1490,10 +1509,10 @@
 struct hash *settings = track->tdb->settingsHash;
 char *bigDataUrl = hashFindVal(settings, "bigDataUrl");
 if (bigDataUrl == NULL)
     errAbort("Missing bigDataUrl setting from track of type=bigBed");
-struct bbiFile *bbi = bigBedFileOpen(bigDataUrl);	// Just for error checking
-bbiFileClose(&bbi);
+track->bbiFile = bigBedFileOpen(bigDataUrl);
+setBbiViewLimits(track);
 return track;
 }
 
 static struct customFactory bigBedFactory =