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// Copyright (C) 1999-2018
// Smithsonian Astrophysical Observatory, Cambridge, MA, USA
// For conditions of distribution and use, see copyright notice in "copyright"
#ifndef __widget_h__
#define __widget_h__
#include <string.h>
#include <stdlib.h>
#include <limits.h>
#include <float.h>
#include <math.h>
#include <iostream>
#include <sstream>
#include <iomanip>
using namespace std;
#include <tcl.h>
#include <tk.h>
#include "vector.h"
class Attribute;
extern float psScale;
// General Defines
#define WIDGET(x) (*(((WidgetOptions*)(x))->widget))
// Widget ConfigSpecs Defines
#define CONFIGX 1
#define CONFIGY 2
#define CONFIGWIDTH 3
#define CONFIGHEIGHT 4
#define CONFIGANCHOR 5
#define CONFIGCOMMAND 6
#define CONFIGHELVETICA 7
#define CONFIGCOURIER 8
#define CONFIGTIMES 9
// Tk Canvas Widget Function Declarations
extern int WidgetConfigProc(Tcl_Interp*, Tk_Canvas, Tk_Item*, int,
Tcl_Obj *const [],int);
extern int WidgetCoordProc(Tcl_Interp*, Tk_Canvas, Tk_Item*, int, Tcl_Obj *const []);
extern void WidgetDeleteProc(Tk_Canvas, Tk_Item*, Display*);
extern void WidgetDisplayProc(Tk_Canvas, Tk_Item*, Display*, Drawable,
int, int, int, int);
extern double WidgetPointProc(Tk_Canvas, Tk_Item*, double*);
extern int WidgetAreaProc(Tk_Canvas, Tk_Item*, double*);
extern int WidgetPostscriptProc(Tcl_Interp*, Tk_Canvas, Tk_Item*, int);
extern void WidgetScaleProc(Tk_Canvas, Tk_Item*, double, double,
double, double);
extern void WidgetTranslateProc(Tk_Canvas, Tk_Item*, double, double);
extern int WidgetIndexProc(Tcl_Interp*, Tk_Canvas, Tk_Item*, char, int*);
extern void WidgetICursorProc(Tk_Canvas, Tk_Item*, int);
extern int WidgetSelectionProc(Tk_Canvas, Tk_Item*, int, char*, int);
extern void WidgetInsertProc(Tk_Canvas, Tk_Item*, int, char*);
extern void WidgetDCharsProc(Tk_Canvas, Tk_Item*, int, int);
extern int WidgetParse(ClientData, Tcl_Interp*, int, char**);
class Widget;
// this structure is returned by each Canvas Function Proc
struct WidgetOptions {
Tk_Item item; // required by tk
int x, y; // Coordinates of positioning point on canvas
int width; // widget width
int height; // widget height
Tk_Anchor anchor; // Where to anchor widget relative to x,y
char* cmdName; // Suggested Tcl command name
char* helvetica; // name of X11 font
char* courier; // name of X11 font
char* times; // name of X11 font
Widget* widget; // pointer to widget class
};
// Widget Class
class Widget {
friend class Attribute;
public:
enum PSColorSpace {BW, GRAY, RGB, CMYK};
Tcl_Interp* interp; // Tcl interp
protected:
WidgetOptions* options; // Pointer to Tk Options
Tk_ConfigSpec* configSpecs; // configure specs
Tk_Canvas canvas; // handle to canvas
Tk_Window tkwin; // Tk window id
Display* display; // display of canvas
Visual* visual; // visual of canvas
int depth; // depth of canvas
int screenNumber; // screen number of canvas
Pixmap pixmap; // size of canvas item
GC widgetGC; // gc for pixmap XCopyArea
int visible; // redraw when true
int originX; // widget upper left origin
int originY; // widget upper left origin
char* cmd; // actual command name used
int result; // result of TCL command
int psResolution; // postscript resolution
int psLevel; // postscript level
PSColorSpace psColorSpace; // postscript color space
protected:
virtual int updatePixmap(const BBox&) =0; // render into pixmap
virtual void invalidPixmap(); // pixmap is invalid
virtual void reset() {}; // reset widget
void createCommand(); // create tcl command
void updateBBox(); // update item bounding box
int checkArgs(int, int, char**); // check args utility
void psHead1(ostream&, int, int);
void psHead2(ostream&, int, int, const char*, const char*);
Vector psOrigin();
// void psFix(ostringstream& ostr);
public:
Widget(Tcl_Interp*, Tk_Canvas, Tk_Item*);
virtual ~Widget();
Tcl_Interp* getInterp() {return interp;}
void redraw(); // ping tk to redraw this widget
void redraw(BBox); // ping tk to redraw this bbox
void redrawNow(); // force update now this widget
void redrawNow(BBox); // force update now this bbox
void forceUpdate(); // only force update
virtual int parse(istringstream&) =0; // parse subcommands
virtual int configure(int, const char**, int); // parse config options
void error(const char*); // parse error function
void msg(const char*); // parse msg function
Tk_Window getTkwin() {return tkwin;}
Display* getDisplay() {return display;}
double getDisplayRatio();
Visual* getVisual() {return visual;}
int getWidth() {return options->width;}
int getHeight() {return options->height;}
int getDepth() {return depth;}
int getScreenNumber() {return screenNumber;}
Tk_Canvas getCanvas() {return canvas;}
int getColor(const char* str);
XColor* getXColor(const char*);
void warp(Vector&);
void warpTo(Vector&);
// Required Canvas Functions
int coordProc(int, char**);
void displayProc(Drawable, int, int, int, int);
double pointProc(double*);
int areaProc(double*);
virtual int postscriptProc(int);
void scaleProc(double, double, double, double);
void translateProc(double, double);
virtual int indexProc(char indexString, int* indexPtr) {return TCL_OK;}
virtual void icursorProc(int index) {}
virtual int selectionProc(int offset, char* buffer, int maxBytes)
{return maxBytes;}
virtual void insertProc(int index, char* string) {}
virtual void dcharsProc(int first, int last) {}
// Subcommand Functions
int configCmd(int, const char**); // configure command
void getHeightCmd(); // return height of widget
void getWidthCmd(); // return width of widget
void hideCmd(); // hide item command
void queryCursorCmd(); // get cursor coords
void resetCmd(); // reset item command
void showCmd(); // show item command
// Postscript Commands
void psLevelCmd(int l) {psLevel = l;}
void psResolutionCmd(int r) {psResolution = r;}
void psColorSpaceCmd(PSColorSpace c) {psColorSpace = c;}
#ifdef MAC_OSX_TK
virtual void macsosxPrintCmd() {}
#endif
};
#endif
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