add callback for move of cursor, allowing edits to be commited

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@473 57a11ea4-9604-0410-9ed3-97b8803252fd

src/Ledger.c

@@ -14,6 +14,16 @@
 
 /* ======================================================== */
 
+static void
+LedgerMoveCursor  (struct _Table *_table, void * client_data)
+{
+   Table * table =  (Table *)_table;
+   BasicRegister *reg = (BasicRegister *) client_data;
+   xaccSaveRegEntry (reg);
+}
+
+/* ======================================================== */
+
 Split * xaccGetCurrentSplit (BasicRegister *reg)
 {
    CellBlock *cursor;
@@ -99,6 +109,9 @@ xaccLoadRegister (BasicRegister *reg, Split **slist)
 
    table = reg->table;
 
+   /* disable callback */
+   table->move_cursor = NULL;
+
    /* set table size to number of items in list */
    i=0;
    while (slist[i]) i++;
@@ -116,6 +129,10 @@ xaccLoadRegister (BasicRegister *reg, Split **slist)
       split = slist[i];
    }
    xaccRefreshTableGUI (table);
+
+   /* enable callback for cursor moves */
+   table->move_cursor = LedgerMoveCursor;
+   table->client_data = (void *) reg;
 }
 
 /* ======================================================== */

src/RegWindow.c

@@ -735,6 +735,7 @@ cancelCB( Widget mw, XtPointer cd, XtPointer cb )
   /* when cancelling edits, reload the cursor from the transaction */
   split = xaccGetCurrentSplit (regData->ledger);
   xaccLoadRegEntry (regData->ledger, split);
+  xaccRefreshTableGUI (regData->ledger->table);
 }
 
 /************************** END OF FILE *************************/

src/register/table.c

@@ -54,6 +54,9 @@ xaccInitTable (Table * table)
    table->current_cursor_row = -1;
    table->current_cursor_col = -1;
 
+   table->move_cursor = NULL;
+   table->client_data = NULL;
+
    table->header = NULL;
    table->cursor = NULL;
    table->entries = NULL;
@@ -327,6 +330,11 @@ void xaccMoveCursor (Table *table, int virt_row, int virt_col)
    int iphys,jphys;
    BasicCell *cell;
 
+   /* call the callback, allowing the app to commit any changes */
+   if (table->move_cursor) {
+      (table->move_cursor) (table, table->client_data);
+   }
+
    table->current_cursor_row = virt_row;
    table->current_cursor_col = virt_col;
 
@@ -360,6 +368,11 @@ void xaccMoveCursorGUI (Table *table, int virt_row, int virt_col)
    int iphys,jphys;
    BasicCell *cell;
 
+   /* call the callback, allowing the app to commit any changes */
+   if (table->move_cursor) {
+      (table->move_cursor) (table, table->client_data);
+   }
+
    table->current_cursor_row = virt_row;
    table->current_cursor_col = virt_col;
 

src/register/table.h

@@ -34,6 +34,11 @@ typedef struct _Table {
   int current_cursor_row;
   int current_cursor_col;
 
+  /* callback that is called when the cursor is moved */
+  /* hack alert -- this should be a callback list, actually */
+  void (*move_cursor) (struct _Table *, void *client_data);
+  void * client_data;
+
   /* string values for each cell, 
    * of dimension num_phys_rows * num_phys_cols */
   char ***entries;