#ifndef _GLOBALS_H_
#define _GLOBALS_H_

#include <X11/Intrinsic.h>

typedef double Matrix3[3][3]; /* generic matrix type for transforms */

/* generic point type for transformations */
typedef struct {
   short x;
   short y; 
   short e;
} HPoint;

/* our widgets */
Widget toplevel, form, trans_xplus, trans_xminus, trans_yplus, trans_yminus,
  rotate_cw, rotate_ccw, scale_up, scale_down, quit, colour, canvas, filename,
  load;

/* our transformation matricies */
Matrix3 ScaleUpMatrix, ScaleDownMatrix, TransXPlusMatrix, TransXMinusMatrix,
  TransYPlusMatrix, TransYMinusMatrix, RotateCWMatrix, RotateCCWMatrix;

Display *display; /* our X display, used often throughout program */

int red, green, blue; /* colour pixel numbers */

Matrix3 Transform; /* our global transformation matrix */
 
XPoint polypoint[100]; /* array to hold our polygon data */
int polysize;  /* number of points in our polygon */
int poly_colour; /* current colour of our polygon */

/* and finally our pixmaps for the graphical buttons. */
Pixmap leftarrow, rightarrow, uparrow, downarrow, rotatecw, rotateccw, 
  scaleup, scaledown, ecks;

#endif