73bc761688e8dc33888081e7e9198d3f214c90b8
braney
  Fri Aug 7 14:21:33 2015 -0700
some tweaks to introduce mafSnp mode to hg38 100way #14277

diff --git src/hg/hgTracks/mafTrack.h src/hg/hgTracks/mafTrack.h
index a5fe740..6923123 100644
--- src/hg/hgTracks/mafTrack.h
+++ src/hg/hgTracks/mafTrack.h
@@ -7,31 +7,39 @@
 #define MAFTRACK_H
 
 #ifndef MAF_H
 #include "maf.h"
 #endif
 
 struct mafPriv
 {
 void *list;
 struct customTrack *ct;
 };
 
 struct mafPriv *getMafPriv(struct track *track);
 
 /* zoom level where summary file is used */
-#define MAF_SUMMARY_VIEW 1000000
+static inline boolean inSummaryMode(struct cart *cart, struct trackDb *tdb, int winSize)
+{
+char *snpTable = trackDbSetting(tdb, "snpTable");
+
+boolean windowBigEnough =  (winSize > 1000000);
+boolean doSnpMode = (snpTable != NULL) && cartOrTdbBoolean(cart, tdb, MAF_SHOW_SNP,FALSE);
+return windowBigEnough && !doSnpMode;
+}
+
 
 /* zoom level that displays synteny breaks and nesting brackets */
 #define MAF_DETAIL_VIEW 30000
 
 void drawMafRegionDetails(struct mafAli *mafList, int height,
         int seqStart, int seqEnd, struct hvGfx *hvg, int xOff, int yOff,
         int width, MgFont *font, Color color, Color altColor,
         enum trackVisibility vis, boolean isAxt, boolean chainBreaks,
 	boolean doSnpMode);
 /* Draw wiggle/density plot based on scoring things on the fly. */
 
 void drawMafChain(struct hvGfx *hvg, int xOff, int yOff, int width, int height,
                         boolean isDouble);
 /* draw single or double chain line between alignments in MAF display */