Diff: FieldRow.h

Revision:

15:d8ea0c7b7e64

Child:

16:d0b142ba4362

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FieldRow.h	Sat Jun 15 15:05:19 2013 +0000
@@ -0,0 +1,91 @@
+/*
+ * SOURCE FILE : FieldRow.h
+ *
+ * Definition of class FieldRow.
+ *
+ */
+
+#ifndef FieldRowDefined
+
+  #define FieldRowDefined
+
+  #include "FieldCell.h"
+  
+  class FieldRow {
+
+  public :
+
+    /***************/
+    /* CONSTRUCTOR */
+    /***************/
+    FieldRow();
+
+    /**************/
+    /* DESTRUCTOR */
+    /**************/
+    virtual ~FieldRow();
+
+    /*************************/
+    /* ADD A CELL TO THE ROW */
+    /*************************/
+    // Pass cell to add in cell.
+    // The cell being added must have been dynamically allocated!
+    void AddCell( FieldCell *cell );
+
+    /*************************/
+    /* GET FIRST CELL IN ROW */
+    /*************************/
+    // Returns pointer to first cell or NULL if no cells in row.
+    FieldCell *GetFirstCell( void ) {
+        FieldCell *result = root.GetNext();
+        if( result == (FieldCell*)NULL ) {
+            nextCell = (FieldCell*)NULL;
+        }
+        else {
+            nextCell = result->GetNext();
+        }
+        return result;
+    }
+    
+    /************************/
+    /* GET NEXT CELL IN ROW */
+    /************************/
+    // Returns pointer to NEXT cell or NULL if no MORE cells in row.
+    FieldCell *GetNextCell( void ) {
+        FieldCell *result = nextCell;
+        if( result != (FieldCell*)NULL ) {
+            nextCell = result->GetNext();
+        }
+        return result;
+    }
+    
+    /**********************************************/
+    /* GET CELL AT PARTICULAR POSITION IN THE ROW */
+    /**********************************************/
+    // Pass index of cell in pos.
+    // Returns pointer to cell or NULL if no cell at given index.
+    FieldCell *GetCellAt( UInt8 pos ) {
+        FieldCell *result = GetFirstCell();
+        while( ( pos > 0 ) && ( result != (FieldCell*)NULL ) ) {
+            result = GetNextCell();
+            pos--;
+        }
+        return result;
+    }
+    
+  private :
+  
+    // The root cell of the row.
+    // Does not contain any useful data and never gets deleted.
+    FieldCell root;
+    
+    // Pointer used when scanning through row cells.
+    FieldCell *nextCell;
+            
+  };
+
+#endif
+
+/* END of FieldRow.h */
+
+