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% $Header: /cvsroot/html2ps/postscript/box.break.ps,v 1.1 2005/12/18 07:21:36 Konstantin Exp $

/box-br-create {
  box-generic-create
  dup box-br-setup-methods
  dup /box-br add-type

  dup /display /block put-css-value
} def

/box-br-get-max-width {            % => Context This
  pop pop 0
} def

/box-br-get-min-width {            % => Context This
  pop pop 0
} def

/box-br-reflow {                   % => Context Parent This
  1 index get-current-y            % => Context Parent This PCY

% CSS 'clear' property may be applied to BR tags!

  3 index exch                     % => Context Pareht This Context PCY 
  2 index box-generic-apply-clear  % => Context Pareht This Y
    
% Move current "box" to parent current coordinates. It is REQUIRED, 
% as some other routines uses box coordinates.

  2 index get-current-x
  2 index put-left                 % => Context Parent This Y

  1 index put-top                  % => Context Parent This

% If we have a sequence of BR tags (like <BR><BR>), we'll have an only one item in the parent's
% line box - whitespace; in this case we'll need to additionally offset current y coordinate by the font size

  1 index get-line length 0 eq {   % => Context Parent This
    2 index
    2 index
    box-container-close-line       % => Context Parent This

    1 index get-current-y
    1 index /font-size get-css-value
    sub
    1 index get-bottom
    min

    2 index put-current-y
  } {
    1 index get-line length 1 gt
    2 index get-line 0 get
    is-whitespace not or {             % => Context Parent This
      2 index 
      2 index box-container-close-line
    } {
      1 index get-line length 0 gt {
% Restore height of whitespace (it had been reset in /flow-whitespace as a first whitespace in a line box)
        1 index get-line 0 get
        /font-size get-css-value   % => Context Parent This DH
        3 index
        3 index
        box-container-close-line   % => Context Parent This DH
        2 index get-current-y
        exch sub                   % => Context Parent This CY'
        1 index get-bottom
        min
        2 index put-current-y      % => Context Pareht This
      } if
    } ifelse
  } ifelse                         % => Context Parent This

% We need to explicitly extend the parent's height, as we don't know if 
% it have any children _after_ this BR box.
  1 index get-current-y
  2 index box-generic-extend-height

  pop pop pop
  
} def

/box-br-setup-methods {
  dup /Methods get
  dup /get-max-width {box-br-get-max-width} put
  dup /get-min-width {box-br-get-min-width} put
  dup /reflow        {box-br-reflow} put
  dup /show          {box-br-show} put
  pop pop
} def

/box-br-show {                     % => Viewport Box
  pop pop
} def