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Diffstat (limited to 'examples/widgets/doc/src/fetchmore.qdoc')
| -rw-r--r-- | examples/widgets/doc/src/fetchmore.qdoc | 46 |
1 files changed, 13 insertions, 33 deletions
diff --git a/examples/widgets/doc/src/fetchmore.qdoc b/examples/widgets/doc/src/fetchmore.qdoc index a27efaf071..d8dae18f33 100644 --- a/examples/widgets/doc/src/fetchmore.qdoc +++ b/examples/widgets/doc/src/fetchmore.qdoc @@ -1,48 +1,19 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the documentation of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:FDL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Free Documentation License Usage -** Alternatively, this file may be used under the terms of the GNU Free -** Documentation License version 1.3 as published by the Free Software -** Foundation and appearing in the file included in the packaging of -** this file. Please review the following information to ensure -** the GNU Free Documentation License version 1.3 requirements -** will be met: https://www.gnu.org/licenses/fdl-1.3.html. -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only /*! \example itemviews/fetchmore \title Fetch More Example + \examplecategory {User Interface Components} \ingroup examples-itemviews \brief The Fetch More example shows how to add items to an item view model on demand. \image fetchmore-example.png - - This example consists of a dialog where you can enter a directory - name in the \uicontrol Directory edit field. The application loads and - visualizes all files it finds as you are typing. It is not required - to press [Enter] to launch the search. - When you have large - or perhaps even infinite - data sets, you will need to add items to the model in batches, and preferably only - when the items are needed by the view (i.e., when they are visible + when the items are needed by the view (i.e., when they become visible in the view). In this example, we implement \c FileListModel - an item view @@ -50,6 +21,15 @@ Window, which sets up the GUI and feeds the model with directories. + The UI consists of a dialog with a list showing the contents + of the root directory. Directories can be navigated by double-clicking. + + At the bottom, there is a log window displaying messages when the view + asks the model for more data. + + To exercise it, navigate to a large directory (say \c /bin), and scroll + to the bottom. Log messages appear showing the data being retrieved. + Let's take a tour of \c {FileListModel}'s code. \section1 FileListModel Class Definition |