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% $Header: /cvsroot/html2ps/postscript/box.input.check.ps,v 1.1 2005/12/18 07:21:37 Konstantin Exp $

/show-checked-check-box {
% render empty (unchecked) radio button
  show-check-box
  
% Get check center coordinates 
  dup get-left
  1 index get-right
  add 2 div

  1 index get-top
  2 index get-bottom
  add 2 div                        % => CX CY

% calculate check box size
  2 index get-width
  6 div                            % => CX CY R

  2 index 1 index sub              % => CX CY R L
  2 index 2 index sub              % => CX CY R L T
  2 index 2 mul dup                % => CX CY R L T H W
  
% render the checkmark (cross)
  0.5 setlinewidth

% / cross part
  4 copy
  4 2 roll
  newpath moveto rlineto stroke

% \ cross part
  neg
  4 2 roll 2 index sub
  newpath moveto rlineto stroke

  pop pop pop
} def

/show-check-box {
% Get check center coordinates 
  dup get-left
  1 index get-right
  add 2 div

  1 index get-top
  2 index get-bottom
  add 2 div                        % => CX CY

% calculate check box size
  2 index get-width
  3 div                            % => CX CY R

  2 index 1 index sub              % => CX CY R L
  2 index 2 index sub              % => CX CY R L T
  2 index 2 mul dup                % => CX CY R L T H W
  
% render the empty (unchecked) radio button
  0.25 setlinewidth 
  rectstroke

  pop pop pop
} def