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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 __BltGrMarker_h__
+#define __BltGrMarker_h__
+
+#include <tk.h>
+
+#include "tkbltChain.h"
+
+#include "tkbltGrMisc.h"
+#include "tkbltGrPSOutput.h"
+
+namespace Blt {
+ class Graph;
+ class Postscript;
+ class Axis;
+
+ typedef struct {
+ Point2d* points;
+ int num;
+ } Coords;
+
+ typedef struct {
+ const char** tags;
+ Coords* worldPts;
+ const char* elemName;
+ Axis* xAxis;
+ Axis* yAxis;
+ int hide;
+ int drawUnder;
+ int xOffset;
+ int yOffset;
+ } MarkerOptions;
+
+ class Marker {
+ protected:
+ Tk_OptionTable optionTable_;
+ void* ops_;
+
+ public:
+ Graph* graphPtr_;
+ const char *name_;
+ Tcl_HashEntry* hashPtr_;
+ ChainLink* link;
+ unsigned int flags;
+ int clipped_;
+
+ protected:
+ double HMap(Axis*, double);
+ double VMap(Axis*, double);
+ Point2d mapPoint(Point2d*, Axis*, Axis*);
+ int boxesDontOverlap(Graph*, Region2d*);
+ int regionInPolygon(Region2d *extsPtr, Point2d *points,
+ int nPoints, int enclosed);
+
+ public:
+ Marker(Graph*, const char*, Tcl_HashEntry*);
+ virtual ~Marker();
+
+ virtual int configure() =0;
+ virtual void draw(Drawable) =0;
+ virtual void map() =0;
+ virtual int pointIn(Point2d*) =0;
+ virtual int regionIn(Region2d*, int) =0;
+ virtual void print(PSOutput*) =0;
+
+ virtual ClassId classId() =0;
+ virtual const char* className() =0;
+ virtual const char* typeName() =0;
+
+ Tk_OptionTable optionTable() {return optionTable_;}
+ void* ops() {return ops_;}
+ };
+};
+
+#endif