riched20: Use cell ptrs to link the cells.

dlls/riched20/editstr.h

@@ -206,7 +206,7 @@ typedef struct tagME_Paragraph
   PARAFORMAT2 fmt;
   ME_String *text;
 
-  struct tagME_DisplayItem *pCell; /* v4.1 */
+  struct tagME_Cell *cell; /* v4.1 */
   ME_BorderRect border;
 
   int nCharOfs;
@@ -228,7 +228,7 @@ typedef struct tagME_Cell /* v4.1 */
   POINT pt;
   int nHeight, nWidth;
   int yTextOffset; /* The text offset is caused by the largest top border. */
-  struct tagME_DisplayItem *prev_cell, *next_cell, *parent_cell;
+  struct tagME_Cell *prev_cell, *next_cell, *parent_cell;
 } ME_Cell;
 
 typedef struct tagME_Row

dlls/riched20/para.c

@@ -126,8 +126,7 @@ BOOL para_in_table( ME_Paragraph *para )
 
 ME_Cell *para_cell( ME_Paragraph *para )
 {
-    if (!para->pCell) return NULL;
-    return &para->pCell->member.cell;
+    return para->cell;
 }
 
 ME_Row *para_first_row( ME_Paragraph *para )
@@ -625,13 +624,13 @@ ME_Paragraph *para_split( ME_TextEditor *editor, ME_Run *run, ME_Style *style,
     {
       ME_Cell *cell = cell_create();
       ME_InsertBefore( para_get_di( new_para ), cell_get_di( cell ) );
-      new_para->pCell = cell_get_di( cell );
+      new_para->cell = cell;
       cell->next_cell = NULL;
       if (paraFlags & MEPF_ROWSTART)
       {
         old_para->nFlags |= MEPF_ROWSTART;
         cell->prev_cell = NULL;
-        cell->parent_cell = old_para->pCell;
+        cell->parent_cell = old_para->cell;
         if (para_cell( old_para ))
           cell->nNestingLevel = para_cell( old_para )->nNestingLevel + 1;
         else
@@ -639,8 +638,8 @@ ME_Paragraph *para_split( ME_TextEditor *editor, ME_Run *run, ME_Style *style,
       }
       else
       {
-        cell->prev_cell = old_para->pCell;
-        cell_prev( cell )->next_cell = cell_get_di( cell );
+        cell->prev_cell = old_para->cell;
+        cell_prev( cell )->next_cell = cell;
         assert( old_para->nFlags & MEPF_CELL );
         assert( !(old_para->nFlags & MEPF_ROWSTART) );
         cell->nNestingLevel = cell_prev( cell )->nNestingLevel;
@@ -650,19 +649,19 @@ ME_Paragraph *para_split( ME_TextEditor *editor, ME_Run *run, ME_Style *style,
     else if (paraFlags & MEPF_ROWEND)
     {
       old_para->nFlags |= MEPF_ROWEND;
-      old_para->pCell = old_para->pCell->member.cell.parent_cell;
-      new_para->pCell = old_para->pCell;
+      old_para->cell = old_para->cell->parent_cell;
+      new_para->cell = old_para->cell;
       assert( para_prev( old_para )->nFlags & MEPF_CELL );
       assert( !(para_prev( old_para )->nFlags & MEPF_ROWSTART) );
-      if (new_para->pCell != para_next( new_para )->pCell
-          && para_next( new_para )->pCell
-          && !para_next( new_para )->pCell->member.cell.prev_cell)
+      if (new_para->cell != para_next( new_para )->cell
+          && para_next( new_para )->cell
+          && !cell_prev( para_next( new_para )->cell ))
       {
         /* Row starts just after the row that was ended. */
         new_para->nFlags |= MEPF_ROWSTART;
       }
     }
-    else new_para->pCell = old_para->pCell;
+    else new_para->cell = old_para->cell;
 
     table_update_flags( old_para );
     table_update_flags( new_para );
@@ -721,7 +720,7 @@ ME_Paragraph *para_join( ME_TextEditor *editor, ME_Paragraph *para, BOOL use_fir
   {
     /* Table cell/row properties are always moved over from the removed para. */
     para->nFlags = next->nFlags;
-    para->pCell = next->pCell;
+    para->cell = next->cell;
 
     /* Remove cell boundary if it is between the end paragraph run and the next
      * paragraph display item. */
@@ -740,10 +739,8 @@ ME_Paragraph *para_join( ME_TextEditor *editor, ME_Paragraph *para, BOOL use_fir
   if (cell)
   {
     ME_Remove( cell_get_di( cell ) );
-    if (cell_prev( cell ))
-        cell_prev( cell )->next_cell = cell_next( cell ) ? cell_get_di( cell_next( cell ) ) : NULL;
-    if (cell_next( cell ))
-        cell_next( cell )->prev_cell = cell_prev( cell ) ? cell_get_di( cell_prev( cell ) ) : NULL;
+    if (cell_prev( cell )) cell_prev( cell )->next_cell = cell_next( cell );
+    if (cell_next( cell )) cell_next( cell )->prev_cell = cell_prev( cell );
     ME_DestroyDisplayItem( cell_get_di( cell ) );
   }
 

dlls/riched20/table.c

@@ -96,7 +96,7 @@ ME_Paragraph* table_insert_row_start_at_para( ME_TextEditor *editor, ME_Paragrap
 
     while (para != end_para)
     {
-        para->pCell = cell_get_di( para_cell( prev_para ) );
+        para->cell = para_cell( prev_para );
         para->nFlags |= MEPF_CELL;
         para->nFlags &= ~(MEPF_ROWSTART | MEPF_ROWEND);
         para->fmt.dwMask |= PFM_TABLE | PFM_TABLEROWDELIMITER;
@@ -193,14 +193,12 @@ ME_Cell *cell_create( void )
 
 ME_Cell *cell_next( ME_Cell *cell )
 {
-    if (!cell->next_cell) return NULL;
-    return &cell->next_cell->member.cell;
+    return cell->next_cell;
 }
 
 ME_Cell *cell_prev( ME_Cell *cell )
 {
-    if (!cell->prev_cell) return NULL;
-    return &cell->prev_cell->member.cell;
+    return cell->prev_cell;
 }
 
 ME_Paragraph *cell_first_para( ME_Cell *cell )