8b16df428363748e823cc2b5a646b33466524f65
kate
  Thu Aug 24 13:20:50 2017 -0700
Extending maxHeight UI for barChart. refs #19872

diff --git src/hg/hgTracks/barChartTrack.c src/hg/hgTracks/barChartTrack.c
index 925bd27..edc3020 100644
--- src/hg/hgTracks/barChartTrack.c
+++ src/hg/hgTracks/barChartTrack.c
@@ -10,31 +10,34 @@
 #include "spaceSaver.h"
 #include "hubConnect.h"
 #include "barChartBed.h"
 #include "barChartCategory.h"
 #include "barChartUi.h"
 
 // If a category contributes more than this percentage, its color is displayed in squish mode
 // Could be a trackDb setting
 #define SPECIFICITY_THRESHOLD   10
 
 struct barChartTrack
 /* Track info */
     {
     boolean noWhiteout;         /* Suppress whiteout of graph background (allow highlight, blue lines) */
     double maxMedian;           /* Maximum median across all categories */
-    int maxHeight;              /* Maximum height in pixels for track */
+    int limitChartHeight;       /* Set maximum height of a chart in the window to maxHeight. Else
+                                        maxHeight is maximum height for highest chart in dataset,
+                                        based on maxLimit trackDb setting */
+    int maxHeight;              /* Maximum height in pixels for a chart */
     boolean doLogTransform;     /* Log10(x+1) */
     boolean doAutoScale;        /* Scale to maximum in window, alternative to log */
     char *unit;                /* Units for category values (e.g. RPKM) */
     struct barChartCategory *categories; /* Category names, colors, etc. */
     int categCount;             /* Count of categories - derived from above */
     char **categNames;          /* Category names  - derived from above */
     char **categLabels;         /* Category labels  - derived from above */
     struct rgbColor *colors;    /* Colors  for all categories */
     struct hash *categoryFilter;  /* NULL out excluded factors */
     };
 
 struct barChartItem
 /* BED item plus computed values for display */
     {
     struct barChartItem *next;  /* Next in singly linked list */
@@ -145,38 +148,42 @@
 #define MIN_BAR_CHART_MODEL_HEIGHT     1
 
 if (winSize < WIN_MAX_GRAPH)
     return MAX_BAR_CHART_MODEL_HEIGHT;
 else if (winSize < WIN_MED_GRAPH)
     return MED_BAR_CHART_MODEL_HEIGHT;
 else
     return MIN_BAR_CHART_MODEL_HEIGHT;
 }
 
 static int barChartMaxHeight(int maxHeight)
 /* Set maximum graph height based on window size */
 {
 // scale based on subjective aesthetic (previous hardcoded were 175/100)
 #define WIN_MED_GRAPH_SCALE     .57
+#define WIN_SMALL_GRAPH_SCALE     .3
 
 long winSize = virtWinBaseCount;
+int height;
 if (winSize < WIN_MAX_GRAPH)
-    return maxHeight;
+    height = maxHeight;
 else if (winSize < WIN_MED_GRAPH)
-    return maxHeight * WIN_MED_GRAPH_SCALE;
+    height = maxHeight * WIN_MED_GRAPH_SCALE;
 else
-    return tl.fontHeight * 4;
+    //height = tl.fontHeight * 4;
+    height = maxHeight * WIN_SMALL_GRAPH_SCALE;
+return height;
 }
 
 static int barChartItemHeight(struct track *tg, void *item);
 
 static void filterCategories(struct track *tg)
 /* Check cart for category selection.  NULL out unselected categorys in category list */
 {
 struct barChartTrack *extras = (struct barChartTrack *)tg->extraUiData;
 struct barChartCategory *categ = NULL;
 extras->categories = getCategories(tg);
 extras->categoryFilter = hashNew(0);
 if (cartListVarExistsAnyLevel(cart, tg->tdb, FALSE, BAR_CHART_CATEGORY_SELECT))
     {
     struct slName *selectedValues = cartOptionalSlNameListClosestToHome(cart, tg->tdb, 
                                                         FALSE, BAR_CHART_CATEGORY_SELECT);
@@ -281,34 +288,41 @@
 
 /* Get track UI info */
 struct barChartTrack *extras;
 AllocVar(extras);
 tg->extraUiData = extras;
 
 struct trackDb *tdb = tg->tdb;
 extras->doLogTransform = cartUsualBooleanClosestToHome(cart, tdb, FALSE, BAR_CHART_LOG_TRANSFORM, 
                                                 BAR_CHART_LOG_TRANSFORM_DEFAULT);
 extras->doAutoScale = cartUsualBooleanClosestToHome(cart, tdb, FALSE, BAR_CHART_AUTOSCALE,
                                                 BAR_CHART_AUTOSCALE_DEFAULT);
 extras->maxMedian = barChartUiMaxMedianScore(tdb);
 extras->noWhiteout = cartUsualBooleanClosestToHome(cart, tdb, FALSE, BAR_CHART_NO_WHITEOUT,
                                                         BAR_CHART_NO_WHITEOUT_DEFAULT);
 extras->unit = trackDbSettingClosestToHomeOrDefault(tdb, BAR_CHART_UNIT, "");
-
+extras->limitChartHeight = cartUsualBooleanClosestToHome(cart, tdb, FALSE, 
+                                                        BAR_CHART_LIMIT_HEIGHT,
+                                                        BAR_CHART_LIMIT_HEIGHT_DEFAULT);
+int maxHeight = BAR_CHART_MAX_HEIGHT;
+if (extras->limitChartHeight)
+    {
     int min, max, deflt, current;
     barChartUiFetchMinMaxPixels(cart, tdb, &min, &max, &deflt, &current);
-extras->maxHeight = barChartMaxHeight(current);
+    maxHeight = current;
+    }
+extras->maxHeight = barChartMaxHeight(maxHeight);
 
 /* Get bed (names and all-sample category median scores) in range */
 loadSimpleBedWithLoader(tg, (bedItemLoader)barChartSimpleBedLoad);
 
 /* Create itemInfo items with BED and geneModels */
 struct barChartItem *itemInfo = NULL, *infoList = NULL;
 struct bed *bed = (struct bed *)tg->items;
 
 /* Load category colors */
 extras->colors = getCategoryColors(tg);
 
 filterCategories(tg);
 
 /* create list of barChart items */
 double maxScoreInWindow = 0;
@@ -555,77 +569,65 @@
     struct rgbColor fillColor = extras->colors[i];
     int fillColorIx = hvGfxFindColorIx(hvg, fillColor.r, fillColor.g, fillColor.b);
     double expScore = bed->expScores[i];
     int height = valToClippedHeight(expScore, maxMedian, viewMax, extras);
     if (graphPadding == 0 || sameString(colorScheme, BAR_CHART_COLORS_USER))
         hvGfxBox(hvg, x1, yZero-height+1, barWidth, height, fillColorIx);
     else
         hvGfxOutlinedBox(hvg, x1, yZero-height+1, barWidth, height, fillColorIx, lineColorIx);
     // mark clipped bar with magenta tip
     if (barChartUseViewLimit(extras) && expScore > viewMax)
         hvGfxBox(hvg, x1, yZero-height+1, barWidth, 2, clipColor);
     x1 = x1 + barWidth + graphPadding;
     }
 }
 
-static int barChartItemHeightOptionalMax(struct track *tg, void *item, boolean isMax)
+static int barChartItemHeight(struct track *tg, void *item)
 {
 // It seems that this can be called early or late
 enum trackVisibility vis = tg->visibility;
 if (tg->limitedVisSet)
     vis = tg->limitedVis;
 
 int height;
 if (vis == tvSquish || vis == tvDense)
     {
     if (vis == tvSquish)
         {
         tg->lineHeight = barChartSquishItemHeight();
         tg->heightPer = tg->lineHeight;
         }
     height = tgFixedItemHeight(tg, item);
     return height;
     }
 struct barChartTrack *extras = (struct barChartTrack *)tg->extraUiData;
-if (isMax)
-    {
-    int extra = 0;
-    height = extras->maxHeight + barChartMargin() + barChartModelHeight(extras) + extra;
-    return height;
-    }
 if (item == NULL)
     return 0;
 struct barChartItem *itemInfo = (struct barChartItem *)item;
 
 if (itemInfo->height != 0)
     {
     return itemInfo->height;
     }
 int topGraphHeight = barChartHeight(tg, itemInfo);
 topGraphHeight = max(topGraphHeight, tl.fontHeight);
 int bottomGraphHeight = 0;
 height = topGraphHeight + bottomGraphHeight + barChartMargin() + 
     barChartModelHeight(extras);
 return height;
 }
 
-static int barChartItemHeight(struct track *tg, void *item)
-{
-    int height = barChartItemHeightOptionalMax(tg, item, FALSE);
-    return height;
-}
-
 static char *barChartMapText(struct track *tg, struct barChartCategory *categ, double expScore)
 /* Construct mouseover text for a chart bar */
 {
 static char buf[128];
 struct barChartTrack *extras = (struct barChartTrack *)tg->extraUiData;
 safef(buf, sizeof(buf), "%s (%.1f %s)", categ->label, expScore, extras->unit);
 return buf;
 }
 
 static int barChartItemStart(struct track *tg, void *item)
 /* Return end chromosome coordinate of item, including graph */
 {
 struct barChartItem *itemInfo = (struct barChartItem *)item;
 struct bed *bed = (struct bed *)itemInfo->bed;
 return bed->chromStart;