/[gzz]/gzz/gzz/Cell.java
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revision 1.26 by tjl, Thu Jul 4 17:11:20 2002 UTC revision 1.27 by tjl, Thu Aug 29 10:08:34 2002 UTC
# Line 37  package gzz; Line 37  package gzz;
37  import gzz.errors.*;  import gzz.errors.*;
38  import java.util.*;  import java.util.*;
39  import gzz.media.*;  import gzz.media.*;
 import gzz.impl.EvilCellTexter;  
40    
41  /** A class to represent a ZigZag cell.  /** A class to represent a ZigZag cell.
42   * <p>   * <p>
# Line 106  public static final String rcsid = "$Id$ Line 105  public static final String rcsid = "$Id$
105       * @param dir       The direction, either positive or negative       * @param dir       The direction, either positive or negative
106       * @diagram zzstruct       * @diagram zzstruct
107       */       */
     final public Cell N(Cell dim, int dir) {  
         return N(dim, dir, null);  
     }  
     final public Cell N(Cell dim) {  
         return N(dim, 1, null);  
     }  
108      final public Cell N(Dim dim, int dir) {      final public Cell N(Dim dim, int dir) {
109          return N(dim, dir, null);          return N(dim, dir, null);
110      }      }
# Line 145  public static final String rcsid = "$Id$ Line 138  public static final String rcsid = "$Id$
138      final public Cell getOrNew(Dim dim) {      final public Cell getOrNew(Dim dim) {
139          return getOrNew(dim, 1, null);          return getOrNew(dim, 1, null);
140      }      }
     final public Cell getOrNew(Cell dim, int dir, Obs o) {  
         return getOrNew(space.getDim(dim), dir, o);  
     }  
     final public Cell getOrNew(Cell dim, int dir) {  
         return getOrNew(dim, dir, null);  
     }  
     final public Cell getOrNew(Cell dim) {  
         return getOrNew(dim, 1, null);  
     }  
141      /** Create a new cell connected to this cell and attach an observer      /** Create a new cell connected to this cell and attach an observer
142       * to it       * to it
143       * atomically.       * atomically.
# Line 162  public static final String rcsid = "$Id$ Line 146  public static final String rcsid = "$Id$
146       * @param obs       The observer       * @param obs       The observer
147       * @diagram zzstruct       * @diagram zzstruct
148       */       */
     final public Cell N(Cell dim, int dir, Obs o) {  
         return space.N(this, dim, dir, o);  
     }  
149      final public Cell N(Dim dim, int dir, Obs o) {      final public Cell N(Dim dim, int dir, Obs o) {
150          return space.N(this, dim, dir, o);          return space.N(this, dim, dir, o);
151      }      }
# Line 176  public static final String rcsid = "$Id$ Line 157  public static final String rcsid = "$Id$
157          space.delete(this);          space.delete(this);
158      }      }
159    
     final public void excise(Cell dim) {  
         excise(space.getDim(dim));  
     }  
160      /** Delete this cell from a rank along a dimension.      /** Delete this cell from a rank along a dimension.
161       * @diagram zzstruct       * @diagram zzstruct
162       */       */
# Line 194  public static final String rcsid = "$Id$ Line 172  public static final String rcsid = "$Id$
172       * @param to        Cell to connect to. This cell will       * @param to        Cell to connect to. This cell will
173       *                  end up poswards from us.       *                  end up poswards from us.
174       */       */
     final public void connect(Cell dim, Cell to)  
         throws ZZAlreadyConnectedException {  
         connect(space.getDim(dim), to);  
     }  
175      final public void connect(Dim dim, Cell to)      final public void connect(Dim dim, Cell to)
176          throws ZZAlreadyConnectedException {          throws ZZAlreadyConnectedException {
177          dim.connect(this, to);          dim.connect(this, to);
# Line 213  public static final String rcsid = "$Id$ Line 187  public static final String rcsid = "$Id$
187       * @param to        Cell to connect to.       * @param to        Cell to connect to.
188       * @diagram zzstruct       * @diagram zzstruct
189       */       */
     final public void connect(Cell dim, int dir, Cell to)  
             throws ZZAlreadyConnectedException {  
         connect(space.getDim(dim), dir, to);  
     }  
190      final public void connect(Dim dim, int dir, Cell to)      final public void connect(Dim dim, int dir, Cell to)
191              throws ZZAlreadyConnectedException {              throws ZZAlreadyConnectedException {
192          if(dir > 0) {          if(dir > 0) {
# Line 233  public static final String rcsid = "$Id$ Line 203  public static final String rcsid = "$Id$
203       * @param dir       The direction, either positive or negative       * @param dir       The direction, either positive or negative
204       * @param what      Cell to insert       * @param what      Cell to insert
205       */       */
     final public void insert(Cell dim, int dir, Cell what)  
         throws ZZAlreadyConnectedException {  
         insert(space.getDim(dim), dir, what);  
     }  
206      final public void insert(Dim dim, int dir, Cell what)      final public void insert(Dim dim, int dir, Cell what)
207          throws ZZAlreadyConnectedException {          throws ZZAlreadyConnectedException {
208          dim.insert(this, dir, what);          dim.insert(this, dir, what);
# Line 247  public static final String rcsid = "$Id$ Line 213  public static final String rcsid = "$Id$
213       * @param dir       The direction, either positive or negative       * @param dir       The direction, either positive or negative
214       * @diagram zzstruct       * @diagram zzstruct
215       */       */
     final public void disconnect(Cell dim, int dir) {  
         disconnect(space.getDim(dim), dir);  
     }  
216      final public void disconnect(Dim dim, int dir) {      final public void disconnect(Dim dim, int dir) {
217          dim.disconnect(this, dir);          dim.disconnect(this, dir);
218      }      }
219    
     /** Set the content of this cell as a Span.  
      * @param text      The new text, as a span pointing to a stable scroll  
      * @deprecated To be replaced by VStream methods.  
      */  
     final public void setSpan(Span text) {  
         ((EvilCellTexter)space.getCellTexter()).setSpan(this, text);  
     }  
   
220      /** Set the content of this cell as text.      /** Set the content of this cell as text.
221       * XXX Need to think about potential other types: int etc.       * XXX Need to think about potential other types: int etc.
222       * @param text      The new text       * @param text      The new text
# Line 311  public static final String rcsid = "$Id$ Line 266  public static final String rcsid = "$Id$
266      final public Cell s(Dim dim, int steps, Obs o) {      final public Cell s(Dim dim, int steps, Obs o) {
267          return dim.s(this, steps, o);          return dim.s(this, steps, o);
268      }      }
     final public Cell s(Cell dim, int steps, Obs o) {  
         return space.getDim(dim).s(this, steps, o);  
     }  
269    
270      /** Find the neighbour of this cell along a dimension      /** Find the neighbour of this cell along a dimension
271       * atomically.       * atomically.
# Line 321  public static final String rcsid = "$Id$ Line 273  public static final String rcsid = "$Id$
273       * @param dir       The direction, either positive or negative       * @param dir       The direction, either positive or negative
274       * @return  The neighbour, or null if none.       * @return  The neighbour, or null if none.
275       */       */
     final public Cell s(Cell dim, int dir) {  
         return s(dim,dir,null);  
     }  
276      final public Cell s(Dim dim, int dir) {      final public Cell s(Dim dim, int dir) {
277          return s(dim,dir,null);          return s(dim,dir,null);
278      }      }
279    
     final public Cell s(Cell dim) {  
         return s(dim,1,null);  
     }  
280      final public Cell s(Dim dim) {      final public Cell s(Dim dim) {
281          return s(dim,1,null);          return s(dim,1,null);
282      }      }
     final public Cell s(Cell dim, Obs o) {  
         return s(dim,1,o);  
     }  
283      /** Find the next cell along a dimension.      /** Find the next cell along a dimension.
284       * Always moves poswards.       * Always moves poswards.
285       * @param dim       Dimension to go along       * @param dim       Dimension to go along
# Line 346  public static final String rcsid = "$Id$ Line 289  public static final String rcsid = "$Id$
289          return s(dim,1,o);          return s(dim,1,o);
290      }      }
291    
     final public Cell h(Cell dim, int dir) {  
         return h(dim, dir, false, null);  
     }  
     final public Cell h(Cell dim, int dir, Obs o) {  
         return h(dim, dir, false, o);  
     }  
     final public Cell h(Cell dim, boolean ensuremove) {  
         return h(dim, -1, ensuremove, null);  
     }  
     final public Cell h(Cell dim, int dir, boolean ensuremove) {  
         return h(dim, dir, ensuremove, null);  
     }  
292      /** Find the headcell of a rank.      /** Find the headcell of a rank.
293       * The headcell is the most negative cell so this call is equivalent       * The headcell is the most negative cell so this call is equivalent
294       * to h(dim, -1).       * to h(dim, -1).
295       */       */
     final public Cell h(Cell dim) {  
         return h(dim, -1, false, null);  
     }  
296      final public Cell h(Dim dim) {      final public Cell h(Dim dim) {
297          return h(dim, -1, false, null);          return h(dim, -1, false, null);
298      }      }
299      final public Cell h(Dim dim, int dir) {      final public Cell h(Dim dim, int dir) {
300          return h(dim, dir, false, null);          return h(dim, dir, false, null);
301      }      }
302        final public Cell h(Dim dim, int dir, boolean ensuremove) {
303            return h(dim, dir, ensuremove, null);
304        }
305    
306      /** Find the headcell of a rank.      /** Find the headcell of a rank.
307       * Always returns a cell, even if rank is looping.       * Always returns a cell, even if rank is looping.
# Line 386  public static final String rcsid = "$Id$ Line 317  public static final String rcsid = "$Id$
317       * @return  The headcell       * @return  The headcell
318       * @diagram zzstruct       * @diagram zzstruct
319       */       */
     final public Cell h(Cell dim, int dir, boolean ensuremove,  
             Obs o) {  
         return h(space.getDim(dim), dir, ensuremove, o);  
     }  
320    
321      final public Cell h(Dim dim, int dir, boolean ensuremove,      final public Cell h(Dim dim, int dir, boolean ensuremove,
322              Obs o) {              Obs o) {
# Line 413  public static final String rcsid = "$Id$ Line 340  public static final String rcsid = "$Id$
340          return text;          return text;
341      }      }
342    
     /** Returns the stable media reference in the cell.  
      * A null return means either that the cell has been deleted  
      * or that the text inside is not a reference.  
      * @param lang      The requested language.  
      */  
     final public Span getSpan() { return getSpan(null); }  
     final public Span getSpan(Obs o) {  
         // return ((EvilCellTexter)space.getCellTexter()).getSpan(this, o);  
         return null;  
     }  
   
343      /** Tests whether this cell is the same as another cell.      /** Tests whether this cell is the same as another cell.
344       * There may be more than one Java object representing the same cell       * There may be more than one Java object representing the same cell
345       * so it is important to use this method instead of the '==' operator       * so it is important to use this method instead of the '==' operator
# Line 454  public static final String rcsid = "$Id$ Line 370  public static final String rcsid = "$Id$
370       *                  in which case the cell will hop negwards.       *                  in which case the cell will hop negwards.
371       * @diagram zzstruct       * @diagram zzstruct
372       */       */
     final public void hop(Cell dim, int steps) {  
         hop(space.getDim(dim), steps);  
     }  
373      final public void hop(Dim dim, int steps) {      final public void hop(Dim dim, int steps) {
374          dim.hop(this, steps);          dim.hop(this, steps);
375      }      }

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