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+/*
+ * 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 1993-2004 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.
+ */
+
+#ifndef __BltGrElem_h__
+#define __BltGrElem_h__
+
+#include <tk.h>
+
+#include "tkbltVector.h"
+#include "tkbltChain.h"
+
+#include "tkbltGrMisc.h"
+#include "tkbltGrPen.h"
+#include "tkbltGrPSOutput.h"
+
+#define SHOW_NONE 0
+#define SHOW_X 1
+#define SHOW_Y 2
+#define SHOW_BOTH 3
+
+#define NUMBEROFPOINTS(e) MIN( (e)->coords.x ? (e)->coords.x->nValues() : 0, \
+ (e)->coords.y ? (e)->coords.y->nValues() : 0 )
+#define NORMALPEN(e) ((((e)->normalPenPtr == NULL) ? \
+ (e)->builtinPenPtr : (e)->normalPenPtr))
+
+namespace Blt {
+ class Axis;
+ class Element;
+ class Pen;
+ class Postscript;
+
+ class ElemValues {
+ protected:
+ double min_;
+ double max_;
+ int nValues_;
+
+ public:
+ double* values_;
+
+ public:
+ ElemValues();
+ virtual ~ElemValues();
+
+ void reset();
+ int nValues() {return nValues_;}
+ double min() {return min_;}
+ double max() {return max_;}
+ };
+
+ class ElemValuesSource : public ElemValues
+ {
+ public:
+ ElemValuesSource(int);
+ ElemValuesSource(int, double*);
+ ~ElemValuesSource();
+
+ void findRange();
+ };
+
+ class ElemValuesVector : public ElemValues
+ {
+ public:
+ Element* elemPtr_;
+ Blt_VectorId source_;
+
+ public:
+ ElemValuesVector(Element*, const char*);
+ ~ElemValuesVector();
+
+ int getVector();
+ int fetchValues(Blt_Vector*);
+ void freeSource();
+ };
+
+ typedef struct {
+ Segment2d *segments;
+ int *map;
+ int length;
+ } GraphSegments;
+
+ typedef struct {
+ ElemValuesSource* x;
+ ElemValuesSource* y;
+ } ElemCoords;
+
+ typedef struct {
+ double min;
+ double max;
+ double range;
+ } Weight;
+
+ typedef struct {
+ Weight weight;
+ Pen* penPtr;
+ } PenStyle;
+
+ typedef struct {
+ Element* elemPtr;
+ const char* label;
+ const char** tags;
+ Axis* xAxis;
+ Axis* yAxis;
+ ElemCoords coords;
+ ElemValues* w;
+ ElemValues* xError;
+ ElemValues* yError;
+ ElemValues* xHigh;
+ ElemValues* xLow;
+ ElemValues* yHigh;
+ ElemValues* yLow;
+ int hide;
+ int legendRelief;
+ Chain* stylePalette;
+ Pen* builtinPenPtr;
+ Pen* activePenPtr;
+ Pen* normalPenPtr;
+ PenOptions builtinPen;
+ } ElementOptions;
+
+ class Element {
+ protected:
+ Tk_OptionTable optionTable_;
+ void* ops_;
+
+ double xRange_;
+ double yRange_;
+
+ public:
+ Graph* graphPtr_;
+ const char* name_;
+ Tcl_HashEntry* hashPtr_;
+ unsigned short row_;
+ unsigned short col_;
+ int nActiveIndices_;
+ int* activeIndices_;
+ int active_;
+ int labelActive_;
+
+ ChainLink* link;
+
+ protected:
+ double FindElemValuesMinimum(ElemValues*, double);
+ PenStyle** StyleMap();
+
+ public:
+ Element(Graph*, const char*, Tcl_HashEntry*);
+ virtual ~Element();
+
+ virtual int configure() =0;
+ virtual void map() =0;
+ virtual void extents(Region2d*) =0;
+ virtual void draw(Drawable) =0;
+ virtual void drawActive(Drawable) =0;
+ virtual void drawSymbol(Drawable, int, int, int) =0;
+ virtual void closest() =0;
+ virtual void print(PSOutput*) =0;
+ virtual void printActive(PSOutput*) =0;
+ virtual void printSymbol(PSOutput*, double, double, int) =0;
+
+ virtual ClassId classId() =0;
+ virtual const char* className() =0;
+ virtual const char* typeName() =0;
+
+ void freeStylePalette (Chain*);
+
+ Tk_OptionTable optionTable() {return optionTable_;}
+ void* ops() {return ops_;}
+ };
+};
+
+extern void VectorChangedProc(Tcl_Interp* interp, ClientData clientData,
+ Blt_VectorNotify notify);
+
+
+#endif