//  File name:  display.h
//    by Ting-jen Yen
//  This file is the header file for the functions of
//    displaying on X windows
#ifndef DISPLAY_H
#define DISPLAY_H
#include <X11/Xlib.h>
#ifdef X_MAIN
 
#define EXTERN
//  The table is a precomputed table of log_2(i/10)  for i= 0..9.
//    It is used for coordinate computing when scaling.
//
double table[10] = {1.,        1.071773,       1.148698,
		1.231144,       1.319508,       1.414214,
		1.515717,       1.624505,       1.741101,
		1.866066};
#else

#define EXTERN extern
extern double table[];

#endif

//  The following constants are used for status of the
//   main view window.  The status changes when a mouse
//   button is pressed or released.
#define NONE 0
#define PAN 1
#define ZOOM_IN 2
#define ZOOM_OUT 3


//  Level of resolution.  0 is the highest resolution.
EXTERN int levels;

void SendReq(int, int, int, int);
void SendReq_R(int);
void SendReq_All(int);
void ZoomIn_View(int&, int&, int&, int, int, int, int);
void ZoomIn_Nav(int&, int&, int&, int, int, int, int);
int ZoomOut_View(int&, int&, int&, int, int, int, int, int, int);
int ZoomOut_Nav(int&, int&, int&, int, int, int, int);
void Adjust_Image_Size(int, int &, int &);
void AdjustLocation(int &, int &, int, int, int, int);
void RemoveIndicator(int, int, int, int, int ,int, Window, XImage *);
#endif