| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #include "qqmladaptormodel_p.h" |
| 5 | |
| 6 | #include <private/qqmldmabstractitemmodeldata_p.h> |
| 7 | #include <private/qqmldmlistaccessordata_p.h> |
| 8 | #include <private/qqmldmobjectdata_p.h> |
| 9 | |
| 10 | QT_BEGIN_NAMESPACE |
| 11 | |
| 12 | QQmlAdaptorModel::Accessors::~Accessors() |
| 13 | { |
| 14 | } |
| 15 | |
| 16 | QQmlAdaptorModel::QQmlAdaptorModel() |
| 17 | : QQmlGuard<QObject>(QQmlAdaptorModel::objectDestroyedImpl, nullptr) |
| 18 | , accessors(&m_nullAccessors) |
| 19 | { |
| 20 | } |
| 21 | |
| 22 | QQmlAdaptorModel::~QQmlAdaptorModel() |
| 23 | { |
| 24 | accessors->cleanup(*this); |
| 25 | } |
| 26 | |
| 27 | void QQmlAdaptorModel::setModel(const QVariant &variant) |
| 28 | { |
| 29 | accessors->cleanup(*this); |
| 30 | |
| 31 | // Don't use variant anymore after this. list may transform it. |
| 32 | list.setList(variant); |
| 33 | |
| 34 | modelStrongReference.clear(); |
| 35 | |
| 36 | if (QObject *object = qvariant_cast<QObject *>(v: list.list())) { |
| 37 | if (QQmlData *ddata = QQmlData::get(object)) |
| 38 | modelStrongReference = ddata->jsWrapper; |
| 39 | setObject(object); |
| 40 | if (qobject_cast<QAbstractItemModel *>(object)) |
| 41 | accessors = new VDMAbstractItemModelDataType(this); |
| 42 | else |
| 43 | accessors = new VDMObjectDelegateDataType; |
| 44 | } else if (list.type() == QQmlListAccessor::ListProperty) { |
| 45 | auto object = static_cast<const QQmlListReference *>(list.list().constData())->object(); |
| 46 | if (QQmlData *ddata = QQmlData::get(object)) |
| 47 | modelStrongReference = ddata->jsWrapper; |
| 48 | setObject(object); |
| 49 | accessors = new VDMObjectDelegateDataType; |
| 50 | } else if (list.type() == QQmlListAccessor::ObjectList) { |
| 51 | setObject(nullptr); |
| 52 | accessors = new VDMObjectDelegateDataType; |
| 53 | } else if (list.type() != QQmlListAccessor::Invalid |
| 54 | && list.type() != QQmlListAccessor::Instance) { // Null QObject |
| 55 | setObject(nullptr); |
| 56 | accessors = new VDMListDelegateDataType(this); |
| 57 | } else { |
| 58 | setObject(nullptr); |
| 59 | accessors = &m_nullAccessors; |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | void QQmlAdaptorModel::invalidateModel() |
| 64 | { |
| 65 | accessors->cleanup(*this); |
| 66 | accessors = &m_nullAccessors; |
| 67 | // Don't clear the model object as we still need the guard to clear the list variant if the |
| 68 | // object is destroyed. |
| 69 | } |
| 70 | |
| 71 | bool QQmlAdaptorModel::isValid() const |
| 72 | { |
| 73 | return accessors != &m_nullAccessors; |
| 74 | } |
| 75 | |
| 76 | int QQmlAdaptorModel::count() const |
| 77 | { |
| 78 | return rowCount() * columnCount(); |
| 79 | } |
| 80 | |
| 81 | int QQmlAdaptorModel::rowCount() const |
| 82 | { |
| 83 | return qMax(a: 0, b: accessors->rowCount(*this)); |
| 84 | } |
| 85 | |
| 86 | int QQmlAdaptorModel::columnCount() const |
| 87 | { |
| 88 | return qMax(a: 0, b: accessors->columnCount(*this)); |
| 89 | } |
| 90 | |
| 91 | int QQmlAdaptorModel::rowAt(int index) const |
| 92 | { |
| 93 | int count = rowCount(); |
| 94 | return count <= 0 ? -1 : index % count; |
| 95 | } |
| 96 | |
| 97 | int QQmlAdaptorModel::columnAt(int index) const |
| 98 | { |
| 99 | int count = rowCount(); |
| 100 | return count <= 0 ? -1 : index / count; |
| 101 | } |
| 102 | |
| 103 | int QQmlAdaptorModel::indexAt(int row, int column) const |
| 104 | { |
| 105 | return column * rowCount() + row; |
| 106 | } |
| 107 | |
| 108 | void QQmlAdaptorModel::useImportVersion(QTypeRevision revision) |
| 109 | { |
| 110 | modelItemRevision = revision; |
| 111 | } |
| 112 | |
| 113 | void QQmlAdaptorModel::objectDestroyedImpl(QQmlGuardImpl *guard) |
| 114 | { |
| 115 | auto This = static_cast<QQmlAdaptorModel *>(guard); |
| 116 | This->setModel(QVariant()); |
| 117 | } |
| 118 | |
| 119 | QT_END_NAMESPACE |
| 120 |