diff options
Diffstat (limited to 'examples/widgets/doc/src/combowidgetmapper.qdoc')
| -rw-r--r-- | examples/widgets/doc/src/combowidgetmapper.qdoc | 49 |
1 files changed, 9 insertions, 40 deletions
diff --git a/examples/widgets/doc/src/combowidgetmapper.qdoc b/examples/widgets/doc/src/combowidgetmapper.qdoc index d1b8948b6d..aae546005c 100644 --- a/examples/widgets/doc/src/combowidgetmapper.qdoc +++ b/examples/widgets/doc/src/combowidgetmapper.qdoc @@ -1,47 +1,17 @@ -/**************************************************************************** -** -** 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/combowidgetmapper \title Combo Widget Mapper Example + \examplecategory {User Interface Components} \ingroup examples-itemviews \brief The Combo Widget Mapper example shows how to use a custom delegate to map information from a model to specific widgets on a form. \image combowidgetmapper-example.png - In the \l{Simple Widget Mapper Example}, we showed the basic use of a - widget mapper to relate data exposed by a model to simple input widgets - in a user interface. However, sometimes we want to use input widgets that - expose data as choices to the user, such as QComboBox, and we need a way - to relate their input to the values stored in the model. - - This example is very similar to the \l{Simple Widget Mapper Example}. - Again, we create a \c Window class with an almost identical user interface, + We create a \c Window class with an almost identical user interface, except that, instead of providing a spin box so that each person's age can be entered, we provide a combo box to allow their addresses to be classified as "Home", "Work" or "Other". @@ -89,8 +59,7 @@ interfering with the other input widgets. The implementation is shown later. \endomit - The rest of the constructor is very similar to that of the - \l{Simple Widget Mapper Example}: + The rest of the constructor sets up connections and layouts: \snippet itemviews/combowidgetmapper/window.cpp Set up connections and layouts @@ -119,7 +88,7 @@ \section1 Delegate Class Definition and Implementation The delegate we use to mediate interaction between the widget mapper and - the input widgets is a small QItemDelegate subclass: + the input widgets is a small QStyledItemDelegate subclass: \snippet itemviews/combowidgetmapper/delegate.h Delegate class definition @@ -130,7 +99,7 @@ Since we only provide an empty implementation of the constructor, we concentrate on the other two functions. - The \l{QItemDelegate::}{setEditorData()} implementation takes the data + The \l{QStyledItemDelegate::}{setEditorData()} implementation takes the data referred to by the model index supplied and processes it according to the presence of a \c currentIndex property in the editor widget: @@ -142,10 +111,10 @@ values needed for the \c currentIndex property. As a result, instead of showing "0", "1" or "2" in the combo box, one of - its predefined set of items is shown. We call QItemDelegate::setEditorData() + its predefined set of items is shown. We call QStyledItemDelegate::setEditorData() for widgets without the \c currentIndex property. - The \l{QItemDelegate::}{setModelData()} implementation performs the reverse + The \l{QStyledItemDelegate::}{setModelData()} implementation performs the reverse process, taking the value stored in the widget's \c currentIndex property and storing it back in the model: |