file: bound.c


/*
 * bound.c - This file contains all routines associated with
 *           brush boundary operation.
 */

#include "XmdvTool.h"
#include "bound.h"
#include "cursor.h"
#include "brush.h"

/* external variables */
extern Brush *brush;		/* the current brush */
/*
extern int dims;
extern double *br_pos, *br_size;
extern double dim_min[MAXDIM], dim_max[MAXDIM];
*/



/* global multi_select variables */
static int bound_drag = FALSE;


/*
 * BrushBoundaryACT() - Action that toggles the bound_drag flag
 *                      when a control key is pressed or released.
 *
 * PARAMETERS
 *   w                  Widget
 *   event              Pointer to XEvent structure that caused the action
 *   params             User supplied parameters
 *   num_params         The number of parameters
 *
 * RETURNS
 *   void
 */
void BrushBoundaryACT(Widget w, XEvent *event, String *params,
		      Cardinal *num_params)
{
  /* check to make sure brushing is on */
  if(brush->bound == BOUND_STEP)
    return;

  /* check the parameters */

  if(*num_params != 1)
    {
      fprintf(stderr,
	      "Error in BrushBoundaryACT() - Invalid # of params passed\n");
      return;
    }

  if(!strcmp(params[0], "On"))
    {
      bound_drag = TRUE;
      RightArrowCursor(w);
    }
  else if(!strcmp(params[0], "Off"))
    {
      bound_drag = FALSE;
      ArrowCursor(w);
    }
  else
    {
      fprintf(stderr,
	      "Error in BrushBoundaryACT() - Incorrect parameter passed: %s\n",
	      params[0]);
      return;
    }
}


/*
 * CheckBoundaryDrag() - Checks if the boundary is being dragged
 *
 * PARAMETERS
 *   void
 *
 * RETURNS
 *   TRUE                Boundary is being dragged.
 *   FALSE               Boundary is not being dragged.
 */
int CheckBoundaryDrag(void)
{
  return(bound_drag);
}



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