6d65c7caa2da509639f5dba2fa2b30eab2d82c02
kate
  Mon Jun 26 14:35:27 2017 -0700
Add mouseover with tissue names and effect sizes.  Commented out code to show colors (not working). refs #15646

diff --git src/hg/hgTracks/gtexEqtlClusterTrack.c src/hg/hgTracks/gtexEqtlClusterTrack.c
index 041d363..6756276 100644
--- src/hg/hgTracks/gtexEqtlClusterTrack.c
+++ src/hg/hgTracks/gtexEqtlClusterTrack.c
@@ -1,71 +1,121 @@
 /* gtexEqtlClusterTrack - Track of clustered expression QTL's from GTEx */
 
 /* Copyright (C) 2017 The Regents of the University of California 
  * See README in this or parent directory for licensing information. */
 #include "common.h"
 #include "dystring.h"
 #include "hgTracks.h"
+#include "gtexInfo.h"
+#include "gtexTissue.h"
 #include "gtexEqtlCluster.h"
 
+struct gtexEqtlClusterTrack
+/* Track info */
+{
+    int tissueCount;            /* Tissue count */
+    struct hash *tissueHash;    /* Tissue info, keyed by UCSC name */
+};
+
 static struct gtexEqtlCluster *loadOne(char **row)
 /* Load up gtexEqtlCluster from array of strings. */
 {
 return gtexEqtlClusterLoad(row);
 }
 
 static void gtexEqtlClusterLoadItems(struct track *track)
 /* Load all items (and motifs if table is present) in window */
 {
+struct gtexEqtlClusterTrack *extras;
+AllocVar(extras);
+track->extraUiData = extras;
+char *version = gtexVersionSuffix(track->table);
+struct gtexTissue *tissues = gtexGetTissues(version);
+struct hash *tisHash = hashNew(0);
+extras->tissueHash = tisHash;
+struct gtexTissue *tis = NULL;
+for (tis = tissues; tis != NULL; tis = tis->next)
+    hashAdd(extras->tissueHash, tis->name, tis);
 bedLoadItem(track, track->table, (ItemLoader)loadOne);
 }
 
 static char *gtexEqtlClusterItemName(struct track *track, void *item)
 /* Load all items (and motifs if table is present) in window */
 {
 struct gtexEqtlCluster *cluster = (struct gtexEqtlCluster *)item;
 struct dyString *ds = dyStringNew(0);
 if (cluster->expCount == 1)
     {
     dyStringPrintf(ds, "%s in %s", cluster->target, cluster->expNames[0]);
     }
 else
     {
     dyStringPrintf(ds, "%s in %d tissues", cluster->target, cluster->expCount);
     }
 return dyStringCannibalize(&ds);
 }
 
 static Color gtexEqtlClusterItemColor(struct track *track, void *item, struct hvGfx *hvg)
 /* Color by highest effect in list (blue -, red +), with brighter for higher effect (teal, fuschia) */
 {
 struct gtexEqtlCluster *cluster = (struct gtexEqtlCluster *)item;
 int maxEffect = 0;
 int i;
 for (i=0; i<cluster->expCount; i++)
     {
     int effect = ceil(cluster->expScores[i]);
     if (abs(effect) > abs(maxEffect))
         maxEffect = effect;
     }
 int cutoff = 2;
 if (maxEffect < 0)
     {
     /* down-regulation displayed as blue */
     if (maxEffect < 0 - cutoff)
         return MG_CYAN;
     return MG_BLUE;
     }
 /* up-regulation displayed as red */
 if (maxEffect > cutoff)
     return MG_MAGENTA;
 return MG_RED;
 }
 
+static void gtexEqtlClusterMapItem(struct track *tg, struct hvGfx *hvg, void *item, char *itemName,
+                        char *mapItemName, int start, int end, int x, int y, int width, int height)
+/* Create a map box on item and label with list of tissues with colors and effect size */
+{
+char *title = itemName;
+uglyf("<br>title: %s\n", title);
+if (tg->limitedVis != tvDense)
+    {
+    // construct list of tissues with colors and effect sizes for mouseover
+    struct gtexEqtlCluster *eqtl = (struct gtexEqtlCluster *)item;
+    //struct gtexEqtlClusterTrack *extras = (struct gtexEqtlClusterTrack *)tg->extraUiData;
+    //struct hash *tissueHash = extras->tissueHash;
+    struct dyString *ds = dyStringNew(0);
+    int i;
+    for (i=0; i<eqtl->expCount; i++)
+        {
+        double effect= eqtl->expScores[i];
+        dyStringPrintf(ds,"%s(%s%0.2f)%s", eqtl->expNames[i], effect < 0 ? "" : "+", effect, 
+                        i < eqtl->expCount - 1 ? ", " : "");
+        //struct gtexTissue *tis = (struct gtexTissue *)hashFindVal(tissueHash, eqtl->expNames[i]);
+        //unsigned color = tis ? tis->color : 0;       // BLACK
+        //char *name = tis ? tis->name : "unknown";
+        //#dyStringPrintf(ds,"<tr><td style='color: #%06X;'>*</td><td>%s</td><td>%s%0.2f</td></tr>\n", 
+                                //color, name, effect < 0 ? "" : "+", effect); 
+        }
+    title = dyStringCannibalize(&ds);
+    }
+uglyf("<br>title2: %s\n", title);
+genericMapItem(tg, hvg, item, title, itemName, start, end, x, y, width, height);
+}
+
 void gtexEqtlClusterMethods(struct track *track)
 /* BED5+5 with target, expNames,expScores, expProbs */
 {
 track->loadItems = gtexEqtlClusterLoadItems;
 track->itemName  = gtexEqtlClusterItemName;
 track->itemColor = gtexEqtlClusterItemColor;
-//track->mapItem   = gtexEqtlClusterMapItem;
+track->mapItem   = gtexEqtlClusterMapItem;
 }