Better align with TEA's expected file layout

TEA is quite picky about packages placing their sources in the generic/,
unix/, etc. directories.  An immediate benefit of this change is support
for building in a separate directory.

1 files changed, 518 insertions, 0 deletions

diff --git a/generic/tkbltGraphBar.C b/generic/tkbltGraphBar.C
new file mode 100644
index 0000000..dc8664c
--- /dev/null
+++ b/generic/tkbltGraphBar.C
@@ -0,0 +1,518 @@
+/*
+ * Smithsonian Astrophysical Observatory, Cambridge, MA, USA
+ * This code has been modified under the terms listed below and is made
+ * available under the same terms.
+ */
+
+/*
+ *	Copyright 1991-2004 George A Howlett.
+ *
+ *	Permission is hereby granted, free of charge, to any person obtaining
+ *	a copy of this software and associated documentation files (the
+ *	"Software"), to deal in the Software without restriction, including
+ *	without limitation the rights to use, copy, modify, merge, publish,
+ *	distribute, sublicense, and/or sell copies of the Software, and to
+ *	permit persons to whom the Software is furnished to do so, subject to
+ *	the following conditions:
+ *
+ *	The above copyright notice and this permission notice shall be
+ *	included in all copies or substantial portions of the Software.
+ *
+ *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ *	LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ *	OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *	WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+
+#include "tkbltGraphBar.h"
+#include "tkbltGraphOp.h"
+
+#include "tkbltGrAxis.h"
+#include "tkbltGrXAxisOp.h"
+#include "tkbltGrPen.h"
+#include "tkbltGrPenOp.h"
+#include "tkbltGrPenBar.h"
+#include "tkbltGrPenLine.h"
+#include "tkbltGrElem.h"
+#include "tkbltGrElemOp.h"
+#include "tkbltGrElemBar.h"
+#include "tkbltGrElemLine.h"
+#include "tkbltGrMarker.h"
+#include "tkbltGrLegd.h"
+#include "tkbltGrHairs.h"
+#include "tkbltGrPostscript.h"
+#include "tkbltGrDef.h"
+
+using namespace Blt;
+
+// BarGroup
+
+BarGroup::BarGroup()
+{
+  nSegments =0;
+  xAxis =NULL;
+  yAxis =NULL;
+  sum =0;
+  count =0;
+  lastY =0;
+  index =0;
+}
+
+// BarGraph
+
+static const char* barmodeObjOption[] = 
+  {"normal", "stacked", "aligned", "overlap", NULL};
+static const char* searchModeObjOption[] = {"points", "traces", "auto", NULL};
+static const char* searchAlongObjOption[] = {"x", "y", "both", NULL};
+
+static Tk_OptionSpec optionSpecs[] = {
+  {TK_OPTION_DOUBLE, "-aspect", "aspect", "Aspect", 
+   "0", -1, Tk_Offset(BarGraphOptions, aspect), 0, NULL, RESET},
+  {TK_OPTION_BORDER, "-background", "background", "Background",
+   STD_NORMAL_BACKGROUND, -1, Tk_Offset(BarGraphOptions, normalBg), 
+   0, NULL, CACHE},
+  {TK_OPTION_STRING_TABLE, "-barmode", "barMode", "BarMode", 
+   "normal", -1, Tk_Offset(BarGraphOptions, barMode), 
+   0, &barmodeObjOption, RESET},
+  {TK_OPTION_DOUBLE, "-barwidth", "barWidth", "BarWidth", 
+   ".9", -1, Tk_Offset(BarGraphOptions, barWidth), 0, NULL, RESET},
+  {TK_OPTION_DOUBLE, "-baseline", "baseline", "Baseline", 
+   "0", -1, Tk_Offset(BarGraphOptions, baseline), 0, NULL, RESET},
+  {TK_OPTION_SYNONYM, "-bd", NULL, NULL, 
+   NULL, 0, -1, 0, (ClientData)"-borderwidth", 0},
+  {TK_OPTION_SYNONYM, "-bg", NULL, NULL, 
+   NULL, 0, -1, 0, (ClientData)"-background", 0},
+  {TK_OPTION_SYNONYM, "-bm", NULL, NULL, 
+   NULL, 0, -1, 0, (ClientData)"-bottommargin", 0},
+  {TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
+   STD_BORDERWIDTH, -1, Tk_Offset(BarGraphOptions, borderWidth), 
+   0, NULL, RESET},
+  {TK_OPTION_PIXELS, "-bottommargin", "bottomMargin", "BottomMargin",
+   "0", -1, Tk_Offset(BarGraphOptions, bottomMargin.reqSize), 0, NULL, RESET},
+  {TK_OPTION_CURSOR, "-cursor", "cursor", "Cursor", 
+   "crosshair", -1, Tk_Offset(BarGraphOptions, cursor), 
+   TK_OPTION_NULL_OK, NULL, 0},
+  {TK_OPTION_SYNONYM, "-fg", NULL, NULL, 
+   NULL, 0, -1, 0, (ClientData)"-foreground", 0},
+  {TK_OPTION_FONT, "-font", "font", "Font", 
+   STD_FONT_MEDIUM, -1, Tk_Offset(BarGraphOptions, titleTextStyle.font), 
+   0, NULL, RESET},
+  {TK_OPTION_COLOR, "-foreground", "foreground", "Foreground",
+   STD_NORMAL_FOREGROUND, -1, Tk_Offset(BarGraphOptions, titleTextStyle.color), 
+   0, NULL, CACHE},
+  {TK_OPTION_SYNONYM, "-halo", NULL, NULL, 
+   NULL, 0, -1, 0, (ClientData)"-searchhalo", 0},
+  {TK_OPTION_PIXELS, "-height", "height", "Height", 
+   "4i", -1, Tk_Offset(BarGraphOptions, reqHeight), 0, NULL, RESET},
+  {TK_OPTION_COLOR, "-highlightbackground", "highlightBackground",
+   "HighlightBackground", 
+   STD_NORMAL_BACKGROUND, -1, Tk_Offset(BarGraphOptions, highlightBgColor), 
+   0, NULL, CACHE},
+  {TK_OPTION_COLOR, "-highlightcolor", "highlightColor", "HighlightColor",
+   STD_NORMAL_FOREGROUND, -1, Tk_Offset(BarGraphOptions, highlightColor), 
+   0, NULL, CACHE},
+  {TK_OPTION_PIXELS, "-highlightthickness", "highlightThickness",
+   "HighlightThickness", 
+   "2", -1, Tk_Offset(BarGraphOptions, highlightWidth), 0, NULL, RESET},
+  {TK_OPTION_BOOLEAN, "-invertxy", "invertXY", "InvertXY", 
+   "no", -1, Tk_Offset(BarGraphOptions, inverted), 0, NULL, RESET},
+  {TK_OPTION_JUSTIFY, "-justify", "justify", "Justify", 
+   "center", -1, Tk_Offset(BarGraphOptions, titleTextStyle.justify), 
+   0, NULL, RESET},
+  {TK_OPTION_PIXELS, "-leftmargin", "leftMargin", "Margin", 
+   "0", -1, Tk_Offset(BarGraphOptions, leftMargin.reqSize), 0, NULL, RESET},
+  {TK_OPTION_SYNONYM, "-lm", NULL, NULL, 
+   NULL, 0, -1, 0, (ClientData)"-leftmargin", 0},
+  {TK_OPTION_BORDER, "-plotbackground", "plotbackground", "PlotBackground",
+   STD_NORMAL_BACKGROUND, -1, Tk_Offset(BarGraphOptions, plotBg), 
+   0, NULL, CACHE},
+  {TK_OPTION_PIXELS, "-plotborderwidth", "plotBorderWidth", "PlotBorderWidth",
+   STD_BORDERWIDTH, -1, Tk_Offset(BarGraphOptions, plotBW), 0, NULL, RESET},
+  {TK_OPTION_PIXELS, "-plotpadx", "plotPadX", "PlotPad", 
+   "0", -1, Tk_Offset(BarGraphOptions, xPad), 0, NULL, RESET},
+  {TK_OPTION_PIXELS, "-plotpady", "plotPadY", "PlotPad", 
+   "0", -1, Tk_Offset(BarGraphOptions, yPad), 0, NULL, RESET},
+  {TK_OPTION_RELIEF, "-plotrelief", "plotRelief", "Relief", 
+   "flat", -1, Tk_Offset(BarGraphOptions, plotRelief), 0, NULL, RESET},
+  {TK_OPTION_RELIEF, "-relief", "relief", "Relief", 
+   "flat", -1, Tk_Offset(BarGraphOptions, relief), 0, NULL, RESET},
+  {TK_OPTION_PIXELS, "-rightmargin", "rightMargin", "Margin", 
+   "0", -1, Tk_Offset(BarGraphOptions, rightMargin.reqSize), 0, NULL, RESET},
+  {TK_OPTION_SYNONYM, "-rm", NULL, NULL, 
+   NULL, 0, -1, 0, (ClientData)"-rightmargin", 0},
+  {TK_OPTION_PIXELS, "-searchhalo", "searchhalo", "SearchHalo", 
+   "2m", -1, Tk_Offset(BarGraphOptions, search.halo), 0, NULL, 0},
+  {TK_OPTION_STRING_TABLE, "-searchmode", "searchMode", "SearchMode",
+   "points", -1, Tk_Offset(BarGraphOptions, search.mode), 
+   0, &searchModeObjOption, 0}, 
+  {TK_OPTION_STRING_TABLE, "-searchalong", "searchAlong", "SearchAlong",
+   "both", -1, Tk_Offset(BarGraphOptions, search.along), 
+   0, &searchAlongObjOption, 0},
+  {TK_OPTION_BOOLEAN, "-stackaxes", "stackAxes", "StackAxes", 
+   "no", -1, Tk_Offset(BarGraphOptions, stackAxes), 0, NULL, RESET},
+  {TK_OPTION_STRING, "-takefocus", "takeFocus", "TakeFocus",
+   NULL, -1, Tk_Offset(BarGraphOptions, takeFocus), 
+   TK_OPTION_NULL_OK, NULL, 0},
+  {TK_OPTION_STRING, "-title", "title", "Title", 
+   NULL, -1, Tk_Offset(BarGraphOptions, title), TK_OPTION_NULL_OK, NULL, RESET},
+  {TK_OPTION_SYNONYM, "-tm", NULL, NULL, 
+   NULL, 0, -1, 0, (ClientData)"-topmargin", 0},
+  {TK_OPTION_PIXELS, "-topmargin", "topMargin", "TopMargin", 
+   "0", -1, Tk_Offset(BarGraphOptions, topMargin.reqSize), 0, NULL, RESET},
+  {TK_OPTION_PIXELS, "-width", "width", "Width", 
+   "5i", -1, Tk_Offset(BarGraphOptions, reqWidth), 0, NULL, RESET},
+  {TK_OPTION_PIXELS, "-plotwidth", "plotWidth", "PlotWidth", 
+   "0", -1, Tk_Offset(BarGraphOptions, reqPlotWidth), 0, NULL, RESET},
+  {TK_OPTION_PIXELS, "-plotheight", "plotHeight", "PlotHeight", 
+   "0", -1, Tk_Offset(BarGraphOptions, reqPlotHeight), 0, NULL, RESET},
+  {TK_OPTION_END, NULL, NULL, NULL, NULL, 0, -1, 0, 0, 0}
+};
+
+// Create
+
+BarGraph::BarGraph(ClientData clientData, Tcl_Interp* interp, 
+		   int objc, Tcl_Obj* const objv[])
+  : Graph(clientData, interp, objc, objv)
+{
+  // problems so far?
+  if (!valid_)
+    return;
+
+  ops_ = (BarGraphOptions*)calloc(1, sizeof(BarGraphOptions));
+  BarGraphOptions* ops = (BarGraphOptions*)ops_;
+
+  Tk_SetClass(tkwin_, "Barchart");
+
+  barGroups_ =NULL;
+  nBarGroups_ =0;
+  maxBarSetSize_ =0;
+  Tcl_InitHashTable(&setTable_, sizeof(BarSetKey)/sizeof(int));
+
+  ops->bottomMargin.site = MARGIN_BOTTOM;
+  ops->leftMargin.site = MARGIN_LEFT;
+  ops->topMargin.site = MARGIN_TOP;
+  ops->rightMargin.site = MARGIN_RIGHT;
+
+  ops->titleTextStyle.anchor = TK_ANCHOR_N;
+  ops->titleTextStyle.color =NULL;
+  ops->titleTextStyle.font =NULL;
+  ops->titleTextStyle.angle =0;
+  ops->titleTextStyle.justify =TK_JUSTIFY_LEFT;
+
+  optionTable_ = Tk_CreateOptionTable(interp_, optionSpecs);
+  if ((Tk_InitOptions(interp_, (char*)ops_, optionTable_, tkwin_) != TCL_OK) || (GraphObjConfigure(this, interp_, objc-2, objv+2) != TCL_OK)) {
+    valid_ =0;
+    return;
+  }
+
+  // do this last after Tk_SetClass set
+  legend_ = new Legend(this);
+  crosshairs_ = new Crosshairs(this);
+  postscript_ = new Postscript(this);
+
+  if (createPen("active", 0, NULL) != TCL_OK) {
+    valid_ =0;
+    return;
+  }
+
+  if (createAxes() != TCL_OK) {
+    valid_ =0;
+    return;
+  }
+
+  adjustAxes();
+
+  Tcl_SetStringObj(Tcl_GetObjResult(interp_), Tk_PathName(tkwin_), -1);
+}
+
+BarGraph::~BarGraph()
+{
+  destroyBarSets();
+}
+
+int BarGraph::configure()	
+{
+  BarGraphOptions* ops = (BarGraphOptions*)ops_;
+  // Don't allow negative bar widths. Reset to an arbitrary value (0.1)
+  if (ops->barWidth <= 0.0f)
+    ops->barWidth = 0.9f;
+
+  return Graph::configure();
+}
+
+int BarGraph::createPen(const char* penName, int objc, Tcl_Obj* const objv[])
+{
+  int isNew;
+  Tcl_HashEntry *hPtr = 
+    Tcl_CreateHashEntry(&penTable_, penName, &isNew);
+  if (!isNew) {
+    Tcl_AppendResult(interp_, "pen \"", penName, "\" already exists in \"",
+		     Tk_PathName(tkwin_), "\"", (char *)NULL);
+    return TCL_ERROR;
+  }
+
+  Pen* penPtr = new BarPen(this, penName, hPtr);
+  if (!penPtr)
+    return TCL_ERROR;
+
+  Tcl_SetHashValue(hPtr, penPtr);
+
+  if ((Tk_InitOptions(interp_, (char*)penPtr->ops(), penPtr->optionTable(), tkwin_) != TCL_OK) || (PenObjConfigure(this, penPtr, interp_, objc-4, objv+4) != TCL_OK)) {
+    delete penPtr;
+    return TCL_ERROR;
+  }
+
+  flags |= RESET;
+  eventuallyRedraw();
+
+  return TCL_OK;
+}
+
+int BarGraph::createElement(int objc, Tcl_Obj* const objv[])
+{
+  char *name = Tcl_GetString(objv[3]);
+  if (name[0] == '-') {
+    Tcl_AppendResult(interp_, "name of element \"", name, 
+		     "\" can't start with a '-'", NULL);
+    return TCL_ERROR;
+  }
+
+  int isNew;
+  Tcl_HashEntry* hPtr = 
+    Tcl_CreateHashEntry(&elements_.table, name, &isNew);
+  if (!isNew) {
+    Tcl_AppendResult(interp_, "element \"", name, 
+		     "\" already exists in \"", Tcl_GetString(objv[0]), 
+		     "\"", NULL);
+    return TCL_ERROR;
+  }
+
+  Element* elemPtr = new BarElement(this, name, hPtr);
+  if (!elemPtr)
+    return TCL_ERROR;
+
+  Tcl_SetHashValue(hPtr, elemPtr);
+
+  if ((Tk_InitOptions(interp_, (char*)elemPtr->ops(), elemPtr->optionTable(), tkwin_) != TCL_OK) || (ElementObjConfigure(elemPtr, interp_, objc-4, objv+4) != TCL_OK)) {
+    delete elemPtr;
+    return TCL_ERROR;
+  }
+
+  elemPtr->link = elements_.displayList->append(elemPtr);
+
+  return TCL_OK;
+}
+
+void BarGraph::mapElements()
+{
+  BarGraphOptions* ops = (BarGraphOptions*)ops_;
+  if ((BarMode)ops->barMode != INFRONT)
+    resetBarSets();
+
+  Graph::mapElements();
+}
+
+void BarGraph::resetAxes()
+{
+  BarGraphOptions* ops = (BarGraphOptions*)ops_;
+  
+  /* FIXME: This should be called whenever the display list of
+   *	      elements change. Maybe yet another flag INIT_STACKS to
+   *	      indicate that the element display list has changed.
+   *	      Needs to be done before the axis limits are set.
+   */
+  initBarSets();
+  if (((BarMode)ops->barMode == STACKED) && (nBarGroups_ > 0))
+    computeBarStacks();
+
+  Graph::resetAxes();
+}
+
+void BarGraph::initBarSets()
+{
+  BarGraphOptions* ops = (BarGraphOptions*)ops_;
+  
+  // Free resources associated with a previous frequency table. This includes
+  // the array of frequency information and the table itself
+  destroyBarSets();
+  if ((BarMode)ops->barMode == INFRONT)
+    return;
+
+  // Initialize a hash table and fill it with unique abscissas.  Keep track
+  // of the frequency of each x-coordinate and how many abscissas have
+  // duplicate mappings.
+  Tcl_HashTable setTable;
+  Tcl_InitHashTable(&setTable, sizeof(BarSetKey)/sizeof(int));
+  int nSegs =0;
+
+  for (ChainLink* link = Chain_FirstLink(elements_.displayList);
+       link; link = Chain_NextLink(link)) {
+    BarElement* bePtr = (BarElement*)Chain_GetValue(link);
+    BarElementOptions* ops = (BarElementOptions*)bePtr->ops();
+    if (ops->hide)
+      continue;
+
+    nSegs++;
+    if (ops->coords.x) {
+      int nPoints = ops->coords.x->nValues();
+      for (double *x=ops->coords.x->values_, *xend=x+nPoints; x<xend; x++) {
+	BarSetKey key;
+	key.value =*x;
+	key.xAxis =ops->xAxis;
+	key.yAxis =NULL;
+
+	int isNew;
+	Tcl_HashEntry* hhPtr = 
+	  Tcl_CreateHashEntry(&setTable, (char*)&key, &isNew);
+	Tcl_HashTable* tablePtr;
+	if (isNew) {
+	  tablePtr = (Tcl_HashTable*)malloc(sizeof(Tcl_HashTable));
+	  Tcl_InitHashTable(tablePtr, TCL_STRING_KEYS);
+	  Tcl_SetHashValue(hhPtr, tablePtr);
+	}
+	else
+	  tablePtr = (Tcl_HashTable*)Tcl_GetHashValue(hhPtr);
+
+	const char* name = ops->groupName ? ops->groupName : ops->yAxis->name_;
+	Tcl_HashEntry* hhPtr2 = Tcl_CreateHashEntry(tablePtr, name, &isNew);
+	size_t count =1;
+	if (!isNew) {
+	  count = (size_t)Tcl_GetHashValue(hhPtr2);
+	  count++;
+	}		
+	Tcl_SetHashValue(hhPtr2, count);
+      }
+    }
+  }
+
+  // no bar elements to be displayed
+  if (setTable.numEntries == 0)
+    return;
+
+  int sum =0;
+  int max =0;
+  Tcl_HashSearch iter;
+  for (Tcl_HashEntry *hhPtr = Tcl_FirstHashEntry(&setTable, &iter); hhPtr;
+       hhPtr = Tcl_NextHashEntry(&iter)) {
+    BarSetKey* keyPtr = (BarSetKey*)Tcl_GetHashKey(&setTable, hhPtr);
+    Tcl_HashTable* tablePtr = (Tcl_HashTable*)Tcl_GetHashValue(hhPtr);
+
+    int isNew;
+    Tcl_HashEntry* hPtr = 
+      Tcl_CreateHashEntry(&setTable_, (char*)keyPtr, &isNew);
+    Tcl_SetHashValue(hPtr, tablePtr);
+
+    if (max < tablePtr->numEntries)
+      max = tablePtr->numEntries; // # of stacks in group
+    sum += tablePtr->numEntries;
+  }
+
+  Tcl_DeleteHashTable(&setTable);
+
+  if (sum > 0) {
+    barGroups_ = new BarGroup[sum];
+    BarGroup* groupPtr = barGroups_;
+    Tcl_HashSearch iter;
+    for (Tcl_HashEntry* hPtr = Tcl_FirstHashEntry(&setTable_, &iter); 
+	 hPtr; hPtr = Tcl_NextHashEntry(&iter)) {
+      BarSetKey* keyPtr = (BarSetKey*)Tcl_GetHashKey(&setTable_, hPtr);
+      Tcl_HashTable* tablePtr = (Tcl_HashTable*)Tcl_GetHashValue(hPtr);
+
+      size_t xcount = 0;
+      Tcl_HashSearch iter2;
+      for (Tcl_HashEntry *hPtr2 = Tcl_FirstHashEntry(tablePtr, &iter2);
+	   hPtr2; hPtr2 = Tcl_NextHashEntry(&iter2)) {
+	size_t count = (size_t)Tcl_GetHashValue(hPtr2);
+	groupPtr->nSegments = count;
+	groupPtr->xAxis = keyPtr->xAxis;
+	groupPtr->yAxis = keyPtr->yAxis;
+	groupPtr->index = xcount++;
+	Tcl_SetHashValue(hPtr2, groupPtr);
+
+	groupPtr++;
+      }
+    }
+  }
+
+  maxBarSetSize_ = max;
+  nBarGroups_ = sum;
+}
+
+void BarGraph::destroyBarSets()
+{
+  if (barGroups_) {
+    delete [] barGroups_;
+    barGroups_ = NULL;
+  }
+
+  nBarGroups_ = 0;
+  Tcl_HashSearch iter;
+  for (Tcl_HashEntry* hPtr=Tcl_FirstHashEntry(&setTable_, &iter); hPtr; 
+       hPtr=Tcl_NextHashEntry(&iter)) {
+    Tcl_HashTable* tablePtr = (Tcl_HashTable*)Tcl_GetHashValue(hPtr);
+    Tcl_DeleteHashTable(tablePtr);
+    free(tablePtr);
+  }
+
+  Tcl_DeleteHashTable(&setTable_);
+  Tcl_InitHashTable(&setTable_, sizeof(BarSetKey)/sizeof(int));
+}
+
+void BarGraph::resetBarSets()
+{
+  for (BarGroup *gp = barGroups_, *gend = gp + nBarGroups_; gp < gend; gp++) {
+    gp->lastY = 0.0;
+    gp->count = 0;
+  }
+}
+
+void BarGraph::computeBarStacks()
+{
+  BarGraphOptions* ops = (BarGraphOptions*)ops_;
+
+  if (((BarMode)ops->barMode != STACKED) || (nBarGroups_ == 0))
+    return;
+
+  // Initialize the stack sums to zero
+  for (BarGroup *gp = barGroups_, *gend = gp + nBarGroups_; gp < gend; gp++)
+    gp->sum = 0.0;
+
+  // Consider each bar x-y coordinate. Add the ordinates of duplicate
+  // abscissas
+
+  for (ChainLink* link = Chain_FirstLink(elements_.displayList); link;
+       link = Chain_NextLink(link)) {
+    BarElement* bePtr = (BarElement*)Chain_GetValue(link);
+    BarElementOptions* ops = (BarElementOptions*)bePtr->ops();
+    if (ops->hide)
+      continue;
+
+    if (ops->coords.x && ops->coords.y) {
+      for (double *x=ops->coords.x->values_, *y=ops->coords.y->values_, 
+	     *xend=x+ops->coords.x->nValues(); x<xend; x++, y++) {
+	BarSetKey key;
+	key.value =*x;
+	key.xAxis =ops->xAxis;
+	key.yAxis =NULL;
+	Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&setTable_, (char*)&key);
+	if (!hPtr)
+	  continue;
+
+	Tcl_HashTable *tablePtr = (Tcl_HashTable*)Tcl_GetHashValue(hPtr);
+	const char *name = ops->groupName ? ops->groupName : ops->yAxis->name_;
+	hPtr = Tcl_FindHashEntry(tablePtr, name);
+	if (!hPtr)
+	  continue;
+
+	BarGroup *groupPtr = (BarGroup*)Tcl_GetHashValue(hPtr);
+	groupPtr->sum += *y;
+      }
+    }
+  }
+}
+