#include <grass/raster.h>
#include <grass/glocale.h>
#include "globals.h"
#include "local_proto.h"

#define NP Region.npoints
#define PT Region.point


int draw_region (void)
{
  int x=0, y=0, button=0;

  /* If this is new polygon get init and get first point */
  if (!Region.area.define) {
    Region.view = NULL;
    Region.npoints = 0;
    
    /* get first point */
    Menu_msg("Mouse: (Left=Select Point) (Right=Quit)");
    while (Region.view==NULL) {
      Mouse_pointer(&x,&y,&button);

      if (In_view(VIEW_MAP1, x, y))
	Region.view = VIEW_MAP1;
      else if (In_view(VIEW_MAP1_ZOOM,x,y))
	Region.view = VIEW_MAP1_ZOOM;

      if (button==RIGHT_BUTTON) return(0);
    }
    Region.area.define = 1;
    add_point(x, y);
    R_stabilize();
  }
  /* if the area is completed have to delete before adding */
  else if (Region.area.completed) {
    Menu_msg("Mouse: (Middle=Backup Point) (Right=Quit)");
    while (button != MIDDLE_BUTTON) {
      Mouse_pointer(&x,&y,&button);
      if (button==RIGHT_BUTTON) return(0);
      if (button==MIDDLE_BUTTON) {
	del_point();
	R_stabilize();
	if (NP<=0) return(0);
      }
    }
  }

  /* now get as many points as they want */
  Menu_msg("Mouse: (Left=Select Pt) (Middle=Backup Pt) (Right=Quit)");
  while(!signalflag.interrupt) {
    R_standard_color(WHITE);
    Mouse_line_anchored(PT[NP-1].x, PT[NP-1].y, &x, &y, &button);
    switch (button) {
    case LEFT_BUTTON:
      if (!In_view(Region.view, x, y)) continue;
      add_point(x,y);
      R_stabilize();
      break;
    case MIDDLE_BUTTON:
      if (!In_view(Region.view, x, y)) continue;
      del_point();
      R_stabilize();
      if (NP<=0) return(0);
      break;
    case RIGHT_BUTTON:
      return(0);
    }
  }

  return 0;
}
  

int 
line_in_map1 (int x1, int y1, int x2, int y2, int color)
{
  int c1,r1,c2,r2;

  c1 = view_to_col(VIEW_MAP1_ZOOM, x1);
  r1 = view_to_row(VIEW_MAP1_ZOOM, y1);
  c2 = view_to_col(VIEW_MAP1_ZOOM, x2);
  r2 = view_to_row(VIEW_MAP1_ZOOM, y2);
  G_message(_("\nOrig:(x1 y1), (x2 y2) = (%d %d), (%d %d)"),
            x1, y1, x2, y2); 

  x1 = col_to_view(VIEW_MAP1, c1);
  y1 = row_to_view(VIEW_MAP1, r1);
  x2 = col_to_view(VIEW_MAP1, c2);
  y2 = row_to_view(VIEW_MAP1, r2);

  G_message(_("\nNew:(x1 y1), (x2 y2) = (%d %d), (%d %d)"),
            x1, y1, x2, y2); 
  R_standard_color(color);
  R_move_abs(x1,y1);
  R_cont_abs(x2,y2);

  return 0;
}