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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 __BltGraph_h__
+#define __BltGraph_h__
+
+#include <tk.h>
+
+#include "tkbltChain.h"
+#include "tkbltGrMisc.h"
+#include "tkbltGrText.h"
+
+typedef struct Ensemble {
+ const char *name;
+ Tcl_ObjCmdProc *proc;
+ const struct Ensemble *subensemble;
+} Ensemble;
+
+namespace Blt {
+ class Axis;
+ class BindTable;
+ class Crosshairs;
+ class Element;
+ class Marker;
+ class Legend;
+ class Pen;
+ class Postscript;
+ class PSOutput;
+
+ class Pick {
+ public:
+ virtual ClientData pickEntry(int, int, ClassId*) =0;
+ };
+
+ typedef struct {
+ int halo;
+ int mode;
+ int x;
+ int y;
+ int along;
+
+ Element* elemPtr;
+ Point2d point;
+ int index;
+ double dist;
+ } ClosestSearch;
+
+ typedef struct {
+ short int width;
+ short int height;
+ short int axesOffset;
+ short int axesTitleLength;
+ short int maxTickWidth;
+ short int maxTickHeight;
+ unsigned int nAxes;
+ Chain* axes;
+ int reqSize;
+ int site;
+ } Margin;
+
+ typedef struct {
+ Tcl_HashTable table;
+ Chain* displayList;
+ Tcl_HashTable tagTable;
+ } Component;
+
+#define rightMargin margins[MARGIN_RIGHT]
+#define leftMargin margins[MARGIN_LEFT]
+#define topMargin margins[MARGIN_TOP]
+#define bottomMargin margins[MARGIN_BOTTOM]
+
+ typedef struct {
+ double aspect;
+ Tk_3DBorder normalBg;
+ int borderWidth;
+ Margin margins[4];
+ Tk_Cursor cursor;
+ TextStyleOptions titleTextStyle;
+ int reqHeight;
+ XColor* highlightBgColor;
+ XColor* highlightColor;
+ int highlightWidth;
+ int inverted;
+ Tk_3DBorder plotBg;
+ int plotBW;
+ int xPad;
+ int yPad;
+ int plotRelief;
+ int relief;
+ ClosestSearch search;
+ int stackAxes;
+ const char *takeFocus; // nor used in C code
+ const char *title;
+ int reqWidth;
+ int reqPlotWidth;
+ int reqPlotHeight;
+ } GraphOptions;
+
+ class Graph : public Pick {
+ public:
+ Tcl_Interp* interp_;
+ Tk_Window tkwin_;
+ Display *display_;
+ Tcl_Command cmdToken_;
+ Tk_OptionTable optionTable_;
+ void* ops_;
+ int valid_;
+
+ unsigned int flags;
+ int nextMarkerId_;
+
+ Component axes_;
+ Component elements_;
+ Component markers_;
+ Tcl_HashTable penTable_;
+ BindTable* bindTable_;
+ Chain* axisChain_[4];
+
+ Legend* legend_;
+ Crosshairs* crosshairs_;
+ Postscript* postscript_;
+
+ int inset_;
+ short int titleX_;
+ short int titleY_;
+ short int titleWidth_;
+ short int titleHeight_;
+ int width_;
+ int height_;
+ short int left_;
+ short int right_;
+ short int top_;
+ short int bottom_;
+ Axis* focusPtr_;
+ int halo_;
+ GC drawGC_;
+ int vRange_;
+ int hRange_;
+ int vOffset_;
+ int hOffset_;
+ float vScale_;
+ float hScale_;
+ Pixmap cache_;
+ short int cacheWidth_;
+ short int cacheHeight_;
+
+ protected:
+ void layoutGraph();
+
+ void drawMargins(Drawable);
+ void printMargins(PSOutput*);
+ int getMarginGeometry(Margin*);
+
+ void destroyPens();
+
+ void destroyElements();
+ void configureElements();
+ virtual void mapElements();
+ void drawElements(Drawable);
+ void drawActiveElements(Drawable);
+ void printElements(PSOutput*);
+ void printActiveElements(PSOutput*);
+
+ void destroyMarkers();
+ void configureMarkers();
+ void mapMarkers();
+ void drawMarkers(Drawable, int);
+ void printMarkers(PSOutput*, int);
+
+ int createAxes();
+ void destroyAxes();
+ void configureAxes();
+ void mapAxes();
+ void drawAxes(Drawable);
+ void drawAxesLimits(Drawable);
+ void drawAxesGrids(Drawable);
+ void adjustAxes();
+
+ public:
+ Graph(ClientData, Tcl_Interp*, int, Tcl_Obj* const []);
+ virtual ~Graph();
+
+ virtual int configure();
+ void map();
+ void draw();
+ void eventuallyRedraw();
+ int print(const char*, PSOutput*);
+ void extents(Region2d*);
+ int invoke(const Ensemble*, int, int, Tcl_Obj* const []);
+ void reconfigure();
+
+ int createAxis(int, Tcl_Obj* const []);
+ void printAxes(PSOutput*);
+ void printAxesGrids(PSOutput*);
+ void printAxesLimits(PSOutput*);
+ int getAxis(Tcl_Obj*, Axis**);
+ ClientData axisTag(const char*);
+ Point2d map2D(double, double, Axis*, Axis*);
+ Point2d invMap2D(double, double, Axis*, Axis*);
+ virtual void resetAxes();
+ Axis* nearestAxis(int, int);
+
+ ClientData markerTag(const char*);
+ Marker* nearestMarker(int, int, int);
+ int isElementHidden(Marker*);
+
+ virtual int createElement(int, Tcl_Obj* const []) =0;
+ int getElement(Tcl_Obj*, Element**);
+ ClientData elementTag(const char*);
+
+ virtual int createPen(const char*, int, Tcl_Obj* const []) =0;
+ int getPen(Tcl_Obj*, Pen**);
+
+ int getXY(const char*, int*, int*);
+ void getTextExtents(Tk_Font, const char*, int, int*, int*);
+ void getBoundingBox(int, int, float, double*, double*, Point2d*);
+ Point2d anchorPoint(double, double, double, double, Tk_Anchor);
+
+ const char** getTags(ClientData, ClassId, int*);
+ ClientData pickEntry(int, int, ClassId*);
+
+ void drawSegments(Drawable, GC, Segment2d*, int);
+ void setDashes(GC, Dashes*);
+
+ GC getPrivateGC(unsigned long, XGCValues*);
+ void freePrivateGC(GC);
+ };
+};
+
+#endif