1 files changed, 202 insertions, 0 deletions
diff --git a/tkblt/generic/tkbltGrElem.h b/tkblt/generic/tkbltGrElem.h
new file mode 100644
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+++ b/tkblt/generic/tkbltGrElem.h
@@ -0,0 +1,202 @@
+/*
+ * 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 row_;
+    unsigned 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