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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 IMPIED, 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 ___BltGrAxis_h__
+#define ___BltGrAxis_h__
+
+#include <tk.h>
+
+#include "tkbltChain.h"
+
+#include "tkbltGrMisc.h"
+#include "tkbltGrText.h"
+#include "tkbltGrPSOutput.h"
+
+namespace Blt {
+ class Graph;
+ class Postscript;
+
+ typedef struct {
+ int axis;
+ int t1;
+ int t2;
+ int label;
+ } AxisInfo;
+
+ typedef struct {
+ const char* name;
+ ClassId classId;
+ } AxisName;
+
+ extern AxisName axisNames[];
+
+ typedef struct {
+ Dashes dashes;
+ int lineWidth;
+ XColor* color;
+ GC gc;
+ Segment2d *segments;
+ int nUsed;
+ int nAllocated;
+ } Grid;
+
+ typedef struct {
+ double min;
+ double max;
+ double range;
+ double scale;
+ } AxisRange;
+
+ class TickLabel {
+ public:
+ Point2d anchorPos;
+ unsigned int width;
+ unsigned int height;
+ char* string;
+
+ public:
+ TickLabel(char*);
+ virtual ~TickLabel();
+ };
+
+ class Ticks {
+ public:
+ int nTicks;
+ double* values;
+
+ public:
+ Ticks(int);
+ virtual ~Ticks();
+ };
+
+ typedef struct {
+ double initial;
+ double step;
+ int nSteps;
+ } TickSweep;
+
+ typedef struct {
+ const char** tags;
+ int checkLimits;
+ int exterior;
+ int showGrid;
+ int showGridMinor;
+ int hide;
+ int showTicks;
+
+ double windowSize;
+ const char *tickFormatCmd;
+ int descending;
+ int labelOffset;
+ TextStyleOptions limitsTextStyle;
+ const char *limitsFormat;
+ int lineWidth;
+ int logScale;
+ int looseMin;
+ int looseMax;
+ Ticks* t1UPtr;
+ Ticks* t2UPtr;
+ double reqMin;
+ double reqMax;
+ Tcl_Obj *scrollCmdObjPtr;
+ int scrollUnits;
+ double reqScrollMin;
+ double reqScrollMax;
+ double shiftBy;
+ double reqStep;
+ int reqNumMajorTicks;
+ int reqNumMinorTicks;
+ int tickLength;
+ const char *title;
+ int titleAlternate;
+
+ XColor* activeFgColor;
+ int activeRelief;
+ Tk_3DBorder normalBg;
+ int borderWidth;
+ XColor* tickColor;
+ Grid major;
+ Grid minor;
+ Tk_Justify titleJustify;
+ int relief;
+ double tickAngle;
+ Tk_Anchor reqTickAnchor;
+ Tk_Font tickFont;
+ Tk_Font titleFont;
+ XColor* titleColor;
+
+ const char *tickFormat;
+ } AxisOptions;
+
+ class Axis {
+ protected:
+ Tk_OptionTable optionTable_;
+ void* ops_;
+
+ public:
+ Graph* graphPtr_;
+ ClassId classId_;
+ const char* name_;
+ const char* className_;
+
+ Tcl_HashEntry* hashPtr_;
+ int refCount_;
+ int use_;
+ int active_;
+
+ ChainLink* link;
+ Chain* chain;
+
+ Point2d titlePos_;
+ unsigned int titleWidth_;
+ unsigned int titleHeight_;
+ double min_;
+ double max_;
+ double scrollMin_;
+ double scrollMax_;
+ AxisRange valueRange_;
+ AxisRange axisRange_;
+ double prevMin_;
+ double prevMax_;
+ Ticks* t1Ptr_;
+ Ticks* t2Ptr_;
+ TickSweep minorSweep_;
+ TickSweep majorSweep_;
+
+ int margin_;
+ Segment2d *segments_;
+ int nSegments_;
+ Chain* tickLabels_;
+ int left_;
+ int right_;
+ int top_;
+ int bottom_;
+ int width_;
+ int height_;
+ int maxTickWidth_;
+ int maxTickHeight_;
+ Tk_Anchor tickAnchor_;
+ GC tickGC_;
+ GC activeTickGC_;
+ double titleAngle_;
+ Tk_Anchor titleAnchor_;
+ double screenScale_;
+ int screenMin_;
+ int screenRange_;
+
+ protected:
+ double niceNum(double, int);
+ void setRange(AxisRange*, double, double);
+ void makeGridLine(double, Segment2d*);
+ void makeSegments(AxisInfo*);
+ void resetTextStyles();
+ void makeLine(int, Segment2d*);
+ void makeTick(double, int, int, Segment2d*);
+ void offsets(int, int, AxisInfo*);
+ void updateScrollbar(Tcl_Interp*, Tcl_Obj*, int, int, int);
+
+ public:
+ Axis(Graph*, const char*, int, Tcl_HashEntry*);
+ virtual ~Axis();
+
+ Tk_OptionTable optionTable() {return optionTable_;}
+ void* ops() {return ops_;}
+ ClassId classId() {return classId_;}
+ const char* className() {return className_;}
+
+ int configure();
+ void map(int, int);
+ void draw(Drawable);
+ void drawGrids(Drawable);
+ void drawLimits(Drawable);
+ void print(PSOutput*);
+ void printGrids(PSOutput*);
+ void printLimits(PSOutput*);
+
+ void mapStacked(int, int);
+ void mapGridlines();
+ void setClass(ClassId);
+ void logScale(double, double);
+ void linearScale(double, double);
+ void fixRange();
+ int isHorizontal();
+ void freeTickLabels();
+ TickLabel* makeLabel(double);
+ void getDataLimits(double, double);
+ Ticks* generateTicks(TickSweep*);
+ int inRange(double, AxisRange*);
+ void getGeometry();
+
+ double invHMap(double x);
+ double invVMap(double y);
+ double hMap(double x);
+ double vMap(double y);
+ };
+};
+
+#endif