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Diffstat (limited to 'src/qml/types/qqmldelegatecomponent.cpp')
| -rw-r--r-- | src/qml/types/qqmldelegatecomponent.cpp | 300 |
1 files changed, 0 insertions, 300 deletions
diff --git a/src/qml/types/qqmldelegatecomponent.cpp b/src/qml/types/qqmldelegatecomponent.cpp deleted file mode 100644 index 470f6cab6a..0000000000 --- a/src/qml/types/qqmldelegatecomponent.cpp +++ /dev/null @@ -1,300 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2018 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtQml module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qqmldelegatecomponent_p.h" -#include <QtQml/private/qqmladaptormodel_p.h> - -QT_BEGIN_NAMESPACE - -QQmlAbstractDelegateComponent::QQmlAbstractDelegateComponent(QObject *parent) - : QQmlComponent(parent) -{ -} - -QQmlAbstractDelegateComponent::~QQmlAbstractDelegateComponent() -{ -} - -QVariant QQmlAbstractDelegateComponent::value(QQmlAdaptorModel *adaptorModel, int row, int column, const QString &role) const -{ - if (!adaptorModel) - return QVariant(); - return adaptorModel->value(adaptorModel->indexAt(row, column), role); -} - -/*! - \qmlmodule Qt.labs.qmlmodels 1.0 - \title Qt Labs QML Models - QML Types - \ingroup qmlmodules - \brief The Qt Labs QML Models module provides various model-related types for use with views. - - To use this module, import the module with the following line: - - \qml - import Qt.labs.qmlmodels 1.0 - \endqml -*/ - -/*! - \qmltype DelegateChoice - \instantiates QQmlDelegateChoice - \inqmlmodule Qt.labs.qmlmodels - \brief Encapsulates a delegate and when to use it. - - The DelegateChoice type wraps a delegate and defines the circumstances - in which it should be chosen. - - DelegateChoices can be nested inside a DelegateChooser. - - \sa DelegateChooser -*/ - -/*! - \qmlproperty string QtQml.Models::DelegateChoice::roleValue - This property holds the value used to match the role data for the role provided by \l DelegateChooser::role. -*/ -QVariant QQmlDelegateChoice::roleValue() const -{ - return m_value; -} - -void QQmlDelegateChoice::setRoleValue(const QVariant &value) -{ - if (m_value == value) - return; - m_value = value; - emit roleValueChanged(); - emit changed(); -} - -/*! - \qmlproperty index QtQml.Models::DelegateChoice::row - This property holds the value used to match the row value of model elements. - With models that have only the index property (and thus only one column), this property - should be intended as an index, and set to the desired index value. - - \note Setting both row and index has undefined behavior. The two are equivalent and only - one should be used. - - \sa index -*/ - -/*! - \qmlproperty index QtQml.Models::DelegateChoice::index - This property holds the value used to match the index value of model elements. - This is effectively an alias for \l row. - - \sa row -*/ -int QQmlDelegateChoice::row() const -{ - return m_row; -} - -void QQmlDelegateChoice::setRow(int r) -{ - if (m_row == r) - return; - m_row = r; - emit rowChanged(); - emit indexChanged(); - emit changed(); -} - -/*! - \qmlproperty index QtQml.Models::DelegateChoice::column - This property holds the value used to match the column value of model elements. -*/ -int QQmlDelegateChoice::column() const -{ - return m_column; -} - -void QQmlDelegateChoice::setColumn(int c) -{ - if (m_column == c) - return; - m_column = c; - emit columnChanged(); - emit changed(); -} - -QQmlComponent *QQmlDelegateChoice::delegate() const -{ - return m_delegate; -} - -/*! - \qmlproperty Component QtQml.Models::DelegateChoice::delegate - This property holds the delegate to use if this choice matches the model item. -*/ -void QQmlDelegateChoice::setDelegate(QQmlComponent *delegate) -{ - if (m_delegate == delegate) - return; - QQmlAbstractDelegateComponent *adc = static_cast<QQmlAbstractDelegateComponent *>(m_delegate); - if (adc) - disconnect(adc, &QQmlAbstractDelegateComponent::delegateChanged, this, &QQmlDelegateChoice::delegateChanged); - m_delegate = delegate; - adc = static_cast<QQmlAbstractDelegateComponent *>(delegate); - if (adc) - connect(adc, &QQmlAbstractDelegateComponent::delegateChanged, this, &QQmlDelegateChoice::delegateChanged); - emit delegateChanged(); - emit changed(); -} - -bool QQmlDelegateChoice::match(int row, int column, const QVariant &value) const -{ - if (!m_value.isValid() && m_row < 0 && m_column < 0) - return true; - - const bool roleMatched = (m_value.isValid()) ? value == m_value : true; - const bool rowMatched = (m_row < 0 ) ? true : m_row == row; - const bool columnMatched = (m_column < 0 ) ? true : m_column == column; - return roleMatched && rowMatched && columnMatched; -} - -/*! - \qmltype DelegateChooser - \instantiates QQmlDelegateChooser - \inqmlmodule Qt.labs.qmlmodels - \brief Allows a view to use different delegates for different types of items in the model. - - The DelegateChooser is a special \l Component type intended for those scenarios where a Component is required - by a view and used as a delegate. - DelegateChooser encapsulates a set of \l {DelegateChoice}s. - These choices are used determine the delegate that will be instantiated for each - item in the model. - The selection of the choice is performed based on the value that a model item has for \l role, - and also based on index. - - \note This type is intended to transparently work only with TableView and any DelegateModel-based view. - Views (including user-defined views) that aren't internally based on a DelegateModel need to explicitly support - this type of component to make it function as described. - - \sa DelegateChoice -*/ - -/*! - \qmlproperty string QtQml.Models::DelegateChooser::role - This property holds the role used to determine the delegate for a given model item. - - \sa DelegateChoice -*/ -void QQmlDelegateChooser::setRole(const QString &role) -{ - if (m_role == role) - return; - m_role = role; - emit roleChanged(); -} - -/*! - \qmlproperty list<DelegateChoice> QtQml.Models::DelegateChooser::choices - \default - - The list of DelegateChoices for the chooser. - - The list is treated as an ordered list, where the first DelegateChoice to match - will be used be a view. - - It should not generally be necessary to refer to the \c choices property, - as it is the default property for DelegateChooser and thus all child items are - automatically assigned to this property. -*/ - -QQmlListProperty<QQmlDelegateChoice> QQmlDelegateChooser::choices() -{ - return QQmlListProperty<QQmlDelegateChoice>(this, nullptr, - QQmlDelegateChooser::choices_append, - QQmlDelegateChooser::choices_count, - QQmlDelegateChooser::choices_at, - QQmlDelegateChooser::choices_clear); -} - -void QQmlDelegateChooser::choices_append(QQmlListProperty<QQmlDelegateChoice> *prop, QQmlDelegateChoice *choice) -{ - QQmlDelegateChooser *q = static_cast<QQmlDelegateChooser *>(prop->object); - q->m_choices.append(choice); - connect(choice, &QQmlDelegateChoice::changed, q, &QQmlAbstractDelegateComponent::delegateChanged); - q->delegateChanged(); -} - -int QQmlDelegateChooser::choices_count(QQmlListProperty<QQmlDelegateChoice> *prop) -{ - QQmlDelegateChooser *q = static_cast<QQmlDelegateChooser*>(prop->object); - return q->m_choices.count(); -} - -QQmlDelegateChoice *QQmlDelegateChooser::choices_at(QQmlListProperty<QQmlDelegateChoice> *prop, int index) -{ - QQmlDelegateChooser *q = static_cast<QQmlDelegateChooser*>(prop->object); - return q->m_choices.at(index); -} - -void QQmlDelegateChooser::choices_clear(QQmlListProperty<QQmlDelegateChoice> *prop) -{ - QQmlDelegateChooser *q = static_cast<QQmlDelegateChooser *>(prop->object); - for (QQmlDelegateChoice *choice : q->m_choices) - disconnect(choice, &QQmlDelegateChoice::changed, q, &QQmlAbstractDelegateComponent::delegateChanged); - q->m_choices.clear(); - q->delegateChanged(); -} - -QQmlComponent *QQmlDelegateChooser::delegate(QQmlAdaptorModel *adaptorModel, int row, int column) const -{ - QVariant v; - if (!m_role.isNull()) - v = value(adaptorModel, row, column, m_role); - if (!v.isValid()) { // check if the row only has modelData, for example if the row is a QVariantMap - v = value(adaptorModel, row, column, QStringLiteral("modelData")); - if (v.isValid()) - v = v.toMap().value(m_role); - } - // loop through choices, finding first one that fits - for (int i = 0; i < m_choices.count(); ++i) { - const QQmlDelegateChoice *choice = m_choices.at(i); - if (choice->match(row, column, v)) - return choice->delegate(); - } - - return nullptr; -} - -QT_END_NAMESPACE |