view/aaTreeViewObject.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent tw=79 ft=cpp: */
   3 /*
   4  * Copyright (C) 2007 Sergey Yanovich <ynvich@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include <abstract/aacore.h>
  23
  24 #include "nsCOMPtr.h"
  25 #include "nsStringAPI.h"
  26
  27 /* Unfrozen API */
  28 #include "unstable/nsIArray.h"
  29 #include "unstable/nsArrayUtils.h"
  30 #include "unstable/nsITreeColumns.h"
  31
  32 /* Project includes */
  33 #include <abstract/base/aaIObject.h>
  34 #include "aaTreeView.h"
  35 #include "aaTreeViewObject.h"
  36
  37 aaTreeViewObject::aaTreeViewObject()
  38 {
  39 }
  40
  41 aaTreeViewObject::~aaTreeViewObject()
  42 {
  43 }
  44
  45 NS_IMPL_ISUPPORTS_INHERITED0(aaTreeViewObject, aaTreeView)
  46
  47 /* Private functions */
  48 nsresult
  49 aaTreeViewObject::doGetCellText(PRInt32 row, nsITreeColumn *col,
  50     nsAString & _retval)
  51 {
  52   nsresult rv;
  53
  54   PRInt32 ci;
  55   rv = col->GetIndex(&ci);
  56   NS_ENSURE_SUCCESS(rv, rv);
  57   if (ci > 0) {
  58     _retval.Truncate();
  59     return NS_OK;
  60   }
  61
  62   nsCOMPtr<aaIObject> object(do_QueryElementAt(mDataSet, row, &rv));
  63   NS_ENSURE_SUCCESS(rv, rv);
  64   if (object)
  65     return object->GetTag(_retval);
  66
  67   _retval.Truncate();
  68   return NS_OK;
  69 }
  70