first sketch

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@393 57a11ea4-9604-0410-9ed3-97b8803252fd

src/register/cellblock.c

@@ -0,0 +1,54 @@
+
+/* cell types */
+enum {
+  DATE,     
+  PRICE,     /* two-digit float point display */
+  AMOUNT,    /* three-digit float point display */
+  TEXT,      /* string text */
+  COMBO,     /* combobox */
+};
+
+
+/* The modify-verify callback is called when a user
+ * makes a change to a cell.  The input is a changed string.
+ * It must return a string, or void if it rejects the change.
+ */
+
+typedef struct _SingleCell {
+
+  short type;     /* cell type */
+  short row;      /* relative row position */
+  short col;      /* relative column position */
+  short width;    /* column width, in chars, not pixels */
+
+  char * value;   /* current value */
+
+  char * (*modify_verify) (char *)  /* modify verify callback */
+
+
+} SingleCell;
+
+typedef struct _CellArray {
+
+  short numRows;
+  short numCols;
+
+  SingleCell **cells;  /* row-col array */
+
+} CellArray;
+
+SingleCell * xaccMallocSingleCell (void);
+void         xaccInitSingleCell (SingleCell *);
+
+
+CellArray * xaccMallocCellArray (void);
+void        xaccInitCellArray (CellArray *, int numrows, int numcols);
+
+/* add a cell to the array */
+void        xaccAddCell (SingleCell *);
+
+
+SingleCell * xaccMallocSingleCell (void)
+{
+
+}