Create two functions to save/restore the account filter settings

These functions allow the saving and restoring of the GncTreeViewAccount
 filter settings to the state file. Currently they are only saved if the
 page is left open when Gnucash is closed.

gnucash/gnome-utils/gnc-tree-view-account.c

@@ -2286,6 +2286,7 @@ account_filter_dialog_create(AccountFilterDialog *fd, GncPluginPage *page)
     LEAVE(" ");
 }
 
+// page state section
 #define ACCT_COUNT    "NumberOfOpenAccounts"
 #define ACCT_OPEN     "OpenAccount%d"
 #define ACCT_SELECTED "SelectedAccount"
@@ -2294,6 +2295,14 @@ account_filter_dialog_create(AccountFilterDialog *fd, GncPluginPage *page)
 #define SHOW_UNUSED   "ShowUnused"
 #define ACCT_TYPES    "AccountTypes"
 
+// account/budget state section
+// versions less than 3.2 would crash if key did not have an "_"
+#define SHOW_HIDDEN_ACCOUNTS   "Show_Hidden"
+#define SHOW_ZERO_TOTALS       "Show_ZeroTotal"
+#define SHOW_UNUSED_ACCOUNTS   "Show_Unused"
+#define ACCOUNT_TYPES          "Account_Types"
+
+
 typedef struct foo
 {
     GKeyFile *key_file;
@@ -2402,6 +2411,33 @@ gnc_tree_view_account_save(GncTreeViewAccount *view,
 
 }
 
+void
+gnc_tree_view_account_save_filter (GncTreeViewAccount *view,
+                                   AccountFilterDialog *fd,
+                                   GKeyFile *key_file,
+                                   const gchar *group_name)
+{
+    g_return_if_fail (key_file != NULL);
+    g_return_if_fail (group_name != NULL);
+
+    ENTER("view %p, key_file %p, group_name %s", view, key_file,
+          group_name);
+
+    g_key_file_set_integer (key_file, group_name, ACCOUNT_TYPES,
+                           fd->visible_types);
+    g_key_file_set_boolean (key_file, group_name, SHOW_HIDDEN_ACCOUNTS,
+                           fd->show_hidden);
+    g_key_file_set_boolean (key_file, group_name, SHOW_ZERO_TOTALS,
+                           fd->show_zero_total);
+    g_key_file_set_boolean (key_file, group_name, SHOW_UNUSED_ACCOUNTS,
+                           fd->show_unused);
+
+    g_key_file_set_comment (key_file, group_name, ACCOUNT_TYPES,
+                            "Account Filter Section below, four lines", NULL);
+
+    LEAVE("");
+}
+
 /** Expand a row in the tree that was expanded when the user last quit
  *  gnucash.  Its job is to map from account name to tree row and
  *  expand the row.
@@ -2542,6 +2578,59 @@ gnc_tree_view_account_restore(GncTreeViewAccount *view,
     gnc_tree_view_account_refilter(view);
 }
 
+void
+gnc_tree_view_account_restore_filter (GncTreeViewAccount *view,
+                                      AccountFilterDialog *fd,
+                                      GKeyFile *key_file,
+                                      const gchar *group_name)
+{
+    GError *error = NULL;
+    gint i;
+    gboolean show;
+
+    g_return_if_fail (key_file != NULL);
+    g_return_if_fail (group_name != NULL);
+
+    /* if entry not found, filter will use the default setting */
+
+    /* Filter information. Ignore missing keys. */
+    show = g_key_file_get_boolean (key_file, group_name, SHOW_HIDDEN_ACCOUNTS, &error);
+    if (error)
+    {
+        g_error_free (error);
+        error = NULL;
+    }
+    else
+        fd->show_hidden = show;
+
+    show = g_key_file_get_boolean(key_file, group_name, SHOW_ZERO_TOTALS, &error);
+    if (error)
+    {
+        g_error_free (error);
+        error = NULL;
+    }
+    else
+        fd->show_zero_total = show;
+
+    show = g_key_file_get_boolean(key_file, group_name, SHOW_UNUSED_ACCOUNTS, &error);
+    if (error)
+    {
+        g_error_free (error);
+        error = NULL;
+    }
+    else
+        fd->show_unused = show;
+
+    i = g_key_file_get_integer(key_file, group_name, ACCOUNT_TYPES, &error);
+    if (error)
+    {
+        g_error_free (error);
+        error = NULL;
+    }
+    else
+        fd->visible_types = i;
+}
+
 // @@fixme -- factor this app-not-gui-specific-logic out.
 void
 gnc_tree_view_account_name_edited_cb(Account *account, GtkTreeViewColumn *col, const gchar *new_name)

gnucash/gnome-utils/gnc-tree-view-account.h

@@ -118,6 +118,15 @@ void gnc_tree_view_account_restore(GncTreeViewAccount *view,
                                    GKeyFile *key_file,
                                    const gchar *group_name);
 
+void gnc_tree_view_account_save_filter (GncTreeViewAccount *tree_view,
+                                        AccountFilterDialog *fd,
+                                        GKeyFile *key_file,
+                                        const gchar *group_name);
+void gnc_tree_view_account_restore_filter (GncTreeViewAccount *view,
+                                           AccountFilterDialog *fd,
+                                           GKeyFile *key_file,
+                                           const gchar *group_name);
+
 
 /* Get the GType for an GncTreeViewAccount object. */
 GType gnc_tree_view_account_get_type (void);