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// Copyright (C) 1999-2017
// Smithsonian Astrophysical Observatory, Cambridge, MA, USA
// For conditions of distribution and use, see copyright notice in "copyright"
#ifndef __panner_h__
#define __panner_h__
#include "widget.h"
class Panner : public Widget {
private:
Pixmap thumbnail; // current frame thumbnail pixmap
int highLite; // flag to highlite bbox
int panning; // flag for panning status
Vector panStart; // initial location of panning operation
int needsUpdate; // flag to indicate refresh needed
GC bboxGC; // bbox gc
int useBBox; // flag to use BBox
Vector bbox[4]; // current view
GC compassGC; // compass gc
Vector imageX;
Vector imageY;
Vector imageZ;
int threed; // 2d or 3d compass
int useCompass; // flag to use image/wcs compass
Vector wcsNorth;
Vector wcsEast;
int validWCSCompass; // flag to indicate wcs data is valid
Tk_Font tkfont_; // Tk font
Tk_FontMetrics metric; // Tk font metric
private:
void update(); // use existing pixmap, just update
void invalidPixmap(); // new pixmap, then update
protected:
virtual void clearPixmap() =0; // clear pixmap
private:
int updatePixmap(const BBox&); // renders image/graphics into pixmap
void renderBBox();
int isInBBox(const Vector&);
void renderImageCompass();
void renderWCSCompass();
void renderArm(int, Vector, Rotate, const char*, int);
void updateGCs();
public:
Panner(Tcl_Interp*, Tk_Canvas, Tk_Item*);
virtual ~Panner();
int parse(istringstream&); // parse subcommands
// SubCommandFunctions
void getBBoxCmd();
void getSizeCmd();
void highLiteCmd(int);
void highLiteCmd(const Vector&);
void panToCmd(const Vector&);
void panBeginCmd(const Vector&);
void panMotionCmd(const Vector&);
void panEndCmd(const Vector&);
void setCompassCmd(int);
void setBBoxCmd(int);
void updateCmd(void*);
void updateBBoxCmd(const Vector&, const Vector&,
const Vector&, const Vector&);
void updateImageCompassCmd(Vector, Vector);
void updateImageCompassCmd(Vector, Vector, Vector);
void updateWCSCompassCmd();
void updateWCSCompassCmd(const Vector&, const Vector&);
void warpCmd(const Vector&);
};
#endif
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