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Diffstat (limited to 'src/qtquick1/graphicsitems/qdeclarativevisualitemmodel.cpp')
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1 files changed, 0 insertions, 1432 deletions
diff --git a/src/qtquick1/graphicsitems/qdeclarativevisualitemmodel.cpp b/src/qtquick1/graphicsitems/qdeclarativevisualitemmodel.cpp deleted file mode 100644 index be0b185d7a..0000000000 --- a/src/qtquick1/graphicsitems/qdeclarativevisualitemmodel.cpp +++ /dev/null @@ -1,1432 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "QtQuick1/private/qdeclarativevisualitemmodel_p.h" - -#include "QtQuick1/qdeclarativeitem.h" - -#include <QtDeclarative/qdeclarativecontext.h> -#include <QtDeclarative/private/qdeclarativecontext_p.h> -#include <QtDeclarative/qdeclarativeengine.h> -#include <QtDeclarative/qdeclarativeexpression.h> -#include <QtQuick1/private/qdeclarativepackage_p.h> -#include <QtQuick1/private/qdeclarativeopenmetaobject_p.h> -#include <QtQuick1/private/qdeclarativelistaccessor_p.h> -#include <QtDeclarative/qdeclarativeinfo.h> -#include <QtDeclarative/private/qdeclarativedata_p.h> -#include <QtDeclarative/private/qdeclarativepropertycache_p.h> -#include <QtDeclarative/private/qdeclarativeguard_p.h> -#include <QtDeclarative/private/qdeclarativeglobal_p.h> - -#include <qgraphicsscene.h> -#include <QtDeclarative/private/qlistmodelinterface_p.h> -#include <qhash.h> -#include <qlist.h> -#include <private/qmetaobjectbuilder_p.h> -#include <QtCore/qdebug.h> - -#include <private/qobject_p.h> - -QT_BEGIN_NAMESPACE - - - -QHash<QObject*, QDeclarative1VisualItemModelAttached*> QDeclarative1VisualItemModelAttached::attachedProperties; - - -class QDeclarative1VisualItemModelPrivate : public QObjectPrivate -{ - Q_DECLARE_PUBLIC(QDeclarative1VisualItemModel) -public: - QDeclarative1VisualItemModelPrivate() : QObjectPrivate() {} - - static void children_append(QDeclarativeListProperty<QDeclarativeItem> *prop, QDeclarativeItem *item) { - QDeclarative_setParent_noEvent(item, prop->object); - static_cast<QDeclarative1VisualItemModelPrivate *>(prop->data)->children.append(Item(item)); - static_cast<QDeclarative1VisualItemModelPrivate *>(prop->data)->itemAppended(); - static_cast<QDeclarative1VisualItemModelPrivate *>(prop->data)->emitChildrenChanged(); - } - - static int children_count(QDeclarativeListProperty<QDeclarativeItem> *prop) { - return static_cast<QDeclarative1VisualItemModelPrivate *>(prop->data)->children.count(); - } - - static QDeclarativeItem *children_at(QDeclarativeListProperty<QDeclarativeItem> *prop, int index) { - return static_cast<QDeclarative1VisualItemModelPrivate *>(prop->data)->children.at(index).item; - } - - void itemAppended() { - Q_Q(QDeclarative1VisualItemModel); - QDeclarative1VisualItemModelAttached *attached = QDeclarative1VisualItemModelAttached::properties(children.last().item); - attached->setIndex(children.count()-1); - emit q->itemsInserted(children.count()-1, 1); - emit q->countChanged(); - } - - void emitChildrenChanged() { - Q_Q(QDeclarative1VisualItemModel); - emit q->childrenChanged(); - } - - int indexOf(QDeclarativeItem *item) const { - for (int i = 0; i < children.count(); ++i) - if (children.at(i).item == item) - return i; - return -1; - } - - class Item { - public: - Item(QDeclarativeItem *i) : item(i), ref(0) {} - - void addRef() { ++ref; } - bool deref() { return --ref == 0; } - - QDeclarativeItem *item; - int ref; - }; - - QList<Item> children; -}; - - -/*! - \qmlclass VisualItemModel QDeclarative1VisualItemModel - \inqmlmodule QtQuick 1 - \ingroup qml-working-with-data - \since QtQuick 1.0 - \brief The VisualItemModel allows items to be provided to a view. - - A VisualItemModel contains the visual items to be used in a view. - When a VisualItemModel is used in a view, the view does not require - a delegate since the VisualItemModel already contains the visual - delegate (items). - - An item can determine its index within the - model via the \l{VisualItemModel::index}{index} attached property. - - The example below places three colored rectangles in a ListView. - \code - import QtQuick 1.0 - - Rectangle { - VisualItemModel { - id: itemModel - Rectangle { height: 30; width: 80; color: "red" } - Rectangle { height: 30; width: 80; color: "green" } - Rectangle { height: 30; width: 80; color: "blue" } - } - - ListView { - anchors.fill: parent - model: itemModel - } - } - \endcode - - \image visualitemmodel.png - - \sa {declarative/modelviews/visualitemmodel}{VisualItemModel example} -*/ -QDeclarative1VisualItemModel::QDeclarative1VisualItemModel(QObject *parent) - : QDeclarative1VisualModel(*(new QDeclarative1VisualItemModelPrivate), parent) -{ -} - -/*! - \qmlattachedproperty int VisualItemModel::index - This attached property holds the index of this delegate's item within the model. - - It is attached to each instance of the delegate. -*/ - -QDeclarativeListProperty<QDeclarativeItem> QDeclarative1VisualItemModel::children() -{ - Q_D(QDeclarative1VisualItemModel); - return QDeclarativeListProperty<QDeclarativeItem>(this, d, d->children_append, - d->children_count, d->children_at); -} - -/*! - \qmlproperty int QtQuick1::VisualItemModel::count - - The number of items in the model. This property is readonly. -*/ -int QDeclarative1VisualItemModel::count() const -{ - Q_D(const QDeclarative1VisualItemModel); - return d->children.count(); -} - -bool QDeclarative1VisualItemModel::isValid() const -{ - return true; -} - -QDeclarativeItem *QDeclarative1VisualItemModel::item(int index, bool) -{ - Q_D(QDeclarative1VisualItemModel); - QDeclarative1VisualItemModelPrivate::Item &item = d->children[index]; - item.addRef(); - return item.item; -} - -QDeclarative1VisualModel::ReleaseFlags QDeclarative1VisualItemModel::release(QDeclarativeItem *item) -{ - Q_D(QDeclarative1VisualItemModel); - int idx = d->indexOf(item); - if (idx >= 0) { - if (d->children[idx].deref()) { - if (item->scene()) - item->scene()->removeItem(item); - QDeclarative_setParent_noEvent(item, this); - } - } - return 0; -} - -bool QDeclarative1VisualItemModel::completePending() const -{ - return false; -} - -void QDeclarative1VisualItemModel::completeItem() -{ - // Nothing to do -} - -QString QDeclarative1VisualItemModel::stringValue(int index, const QString &name) -{ - Q_D(QDeclarative1VisualItemModel); - if (index < 0 || index >= d->children.count()) - return QString(); - return QDeclarativeEngine::contextForObject(d->children.at(index).item)->contextProperty(name).toString(); -} - -int QDeclarative1VisualItemModel::indexOf(QDeclarativeItem *item, QObject *) const -{ - Q_D(const QDeclarative1VisualItemModel); - return d->indexOf(item); -} - -QDeclarative1VisualItemModelAttached *QDeclarative1VisualItemModel::qmlAttachedProperties(QObject *obj) -{ - return QDeclarative1VisualItemModelAttached::properties(obj); -} - -//============================================================================ - -class VDMDelegateDataType : public QDeclarative1OpenMetaObjectType -{ -public: - VDMDelegateDataType(const QMetaObject *base, QDeclarativeEngine *engine) : QDeclarative1OpenMetaObjectType(base, engine) {} - - void propertyCreated(int, QMetaPropertyBuilder &prop) { - prop.setWritable(false); - } -}; - -class QDeclarative1VisualDataModelParts; -class QDeclarative1VisualDataModelData; -class QDeclarative1VisualDataModelPrivate : public QObjectPrivate -{ -public: - QDeclarative1VisualDataModelPrivate(QDeclarativeContext *); - - static QDeclarative1VisualDataModelPrivate *get(QDeclarative1VisualDataModel *m) { - return static_cast<QDeclarative1VisualDataModelPrivate *>(QObjectPrivate::get(m)); - } - - QDeclarativeGuard<QListModelInterface> m_listModelInterface; - QDeclarativeGuard<QAbstractItemModel> m_abstractItemModel; - QDeclarativeGuard<QDeclarative1VisualDataModel> m_visualItemModel; - QString m_part; - - QDeclarativeComponent *m_delegate; - QDeclarativeGuard<QDeclarativeContext> m_context; - QList<int> m_roles; - QHash<QByteArray,int> m_roleNames; - void ensureRoles() { - if (m_roleNames.isEmpty()) { - if (m_listModelInterface) { - m_roles = m_listModelInterface->roles(); - for (int ii = 0; ii < m_roles.count(); ++ii) - m_roleNames.insert(m_listModelInterface->toString(m_roles.at(ii)).toUtf8(), m_roles.at(ii)); - } else if (m_abstractItemModel) { - QHash<int,QByteArray> roles = m_abstractItemModel->roleNames(); - for (QHash<int,QByteArray>::const_iterator it = roles.begin(); - it != roles.end(); ++it) { - m_roles.append(it.key()); - m_roleNames.insert(*it, it.key()); - } - if (m_roles.count()) - m_roleNames.insert("hasModelChildren", -1); - } else if (m_listAccessor) { - m_roleNames.insert("modelData", 0); - if (m_listAccessor->type() == QDeclarative1ListAccessor::Instance) { - if (QObject *object = m_listAccessor->at(0).value<QObject*>()) { - int count = object->metaObject()->propertyCount(); - for (int ii = 1; ii < count; ++ii) { - const QMetaProperty &prop = object->metaObject()->property(ii); - m_roleNames.insert(prop.name(), 0); - } - } - } - } - } - } - - QHash<int,int> m_roleToPropId; - int m_modelDataPropId; - void createMetaData() { - if (!m_metaDataCreated) { - ensureRoles(); - if (m_roleNames.count()) { - QHash<QByteArray, int>::const_iterator it = m_roleNames.begin(); - while (it != m_roleNames.end()) { - int propId = m_delegateDataType->createProperty(it.key()) - m_delegateDataType->propertyOffset(); - m_roleToPropId.insert(*it, propId); - ++it; - } - // Add modelData property - if (m_roles.count() == 1) - m_modelDataPropId = m_delegateDataType->createProperty("modelData") - m_delegateDataType->propertyOffset(); - m_metaDataCreated = true; - } - } - } - - struct ObjectRef { - ObjectRef(QObject *object=0) : obj(object), ref(1) {} - QObject *obj; - int ref; - }; - class Cache : public QHash<int, ObjectRef> { - public: - QObject *getItem(int index) { - QObject *item = 0; - QHash<int,ObjectRef>::iterator it = find(index); - if (it != end()) { - (*it).ref++; - item = (*it).obj; - } - return item; - } - QObject *item(int index) { - QObject *item = 0; - QHash<int, ObjectRef>::const_iterator it = find(index); - if (it != end()) - item = (*it).obj; - return item; - } - void insertItem(int index, QObject *obj) { - insert(index, ObjectRef(obj)); - } - bool releaseItem(QObject *obj) { - QHash<int, ObjectRef>::iterator it = begin(); - for (; it != end(); ++it) { - ObjectRef &objRef = *it; - if (objRef.obj == obj) { - if (--objRef.ref == 0) { - erase(it); - return true; - } - break; - } - } - return false; - } - }; - - int modelCount() const { - if (m_visualItemModel) - return m_visualItemModel->count(); - if (m_listModelInterface) - return m_listModelInterface->count(); - if (m_abstractItemModel) - return m_abstractItemModel->rowCount(m_root); - if (m_listAccessor) - return m_listAccessor->count(); - return 0; - } - - Cache m_cache; - QHash<QObject *, QDeclarative1Package*> m_packaged; - - QDeclarative1VisualDataModelParts *m_parts; - friend class QDeclarative1VisualItemParts; - - VDMDelegateDataType *m_delegateDataType; - friend class QDeclarative1VisualDataModelData; - bool m_metaDataCreated : 1; - bool m_metaDataCacheable : 1; - bool m_delegateValidated : 1; - bool m_completePending : 1; - - QDeclarative1VisualDataModelData *data(QObject *item); - - QVariant m_modelVariant; - QDeclarative1ListAccessor *m_listAccessor; - - QModelIndex m_root; - QList<QByteArray> watchedRoles; - QList<int> watchedRoleIds; -}; - -class QDeclarative1VisualDataModelDataMetaObject : public QDeclarative1OpenMetaObject -{ -public: - QDeclarative1VisualDataModelDataMetaObject(QObject *parent, QDeclarative1OpenMetaObjectType *type) - : QDeclarative1OpenMetaObject(parent, type) {} - - virtual QVariant initialValue(int); - virtual int createProperty(const char *, const char *); - -private: - friend class QDeclarative1VisualDataModelData; -}; - -class QDeclarative1VisualDataModelData : public QObject -{ -Q_OBJECT -public: - QDeclarative1VisualDataModelData(int index, QDeclarative1VisualDataModel *model); - ~QDeclarative1VisualDataModelData(); - - Q_PROPERTY(int index READ index NOTIFY indexChanged) - int index() const; - void setIndex(int index); - - int propForRole(int) const; - int modelDataPropertyId() const { - QDeclarative1VisualDataModelPrivate *model = QDeclarative1VisualDataModelPrivate::get(m_model); - return model->m_modelDataPropId; - } - - void setValue(int, const QVariant &); - bool hasValue(int id) const { - return m_meta->hasValue(id); - } - - void ensureProperties(); - -Q_SIGNALS: - void indexChanged(); - -private: - friend class QDeclarative1VisualDataModelDataMetaObject; - int m_index; - QDeclarativeGuard<QDeclarative1VisualDataModel> m_model; - QDeclarative1VisualDataModelDataMetaObject *m_meta; -}; - -int QDeclarative1VisualDataModelData::propForRole(int id) const -{ - QDeclarative1VisualDataModelPrivate *model = QDeclarative1VisualDataModelPrivate::get(m_model); - QHash<int,int>::const_iterator it = model->m_roleToPropId.find(id); - if (it != model->m_roleToPropId.end()) - return *it; - - return -1; -} - -void QDeclarative1VisualDataModelData::setValue(int id, const QVariant &val) -{ - m_meta->setValue(id, val); -} - -int QDeclarative1VisualDataModelDataMetaObject::createProperty(const char *name, const char *type) -{ - QDeclarative1VisualDataModelData *data = - static_cast<QDeclarative1VisualDataModelData *>(object()); - - if (!data->m_model) - return -1; - - QDeclarative1VisualDataModelPrivate *model = QDeclarative1VisualDataModelPrivate::get(data->m_model); - if (data->m_index < 0 || data->m_index >= model->modelCount()) - return -1; - - if ((!model->m_listModelInterface || !model->m_abstractItemModel) && model->m_listAccessor) { - if (model->m_listAccessor->type() == QDeclarative1ListAccessor::ListProperty) { - model->ensureRoles(); - if (qstrcmp(name,"modelData") == 0) - return QDeclarative1OpenMetaObject::createProperty(name, type); - } - } - return -1; -} - -QVariant QDeclarative1VisualDataModelDataMetaObject::initialValue(int propId) -{ - QDeclarative1VisualDataModelData *data = - static_cast<QDeclarative1VisualDataModelData *>(object()); - - Q_ASSERT(data->m_model); - QDeclarative1VisualDataModelPrivate *model = QDeclarative1VisualDataModelPrivate::get(data->m_model); - - QByteArray propName = name(propId); - if ((!model->m_listModelInterface || !model->m_abstractItemModel) && model->m_listAccessor) { - if (propName == "modelData") { - if (model->m_listAccessor->type() == QDeclarative1ListAccessor::Instance) { - QObject *object = model->m_listAccessor->at(0).value<QObject*>(); - return object->metaObject()->property(1).read(object); // the first property after objectName - } - return model->m_listAccessor->at(data->m_index); - } else { - // return any property of a single object instance. - QObject *object = model->m_listAccessor->at(data->m_index).value<QObject*>(); - return object->property(propName); - } - } else if (model->m_listModelInterface) { - model->ensureRoles(); - QHash<QByteArray,int>::const_iterator it = model->m_roleNames.find(propName); - if (it != model->m_roleNames.end()) { - QVariant value = model->m_listModelInterface->data(data->m_index, *it); - return value; - } else if (model->m_roles.count() == 1 && propName == "modelData") { - //for compatibility with other lists, assign modelData if there is only a single role - QVariant value = model->m_listModelInterface->data(data->m_index, model->m_roles.first()); - return value; - } - } else if (model->m_abstractItemModel) { - model->ensureRoles(); - QModelIndex index = model->m_abstractItemModel->index(data->m_index, 0, model->m_root); - if (propName == "hasModelChildren") { - return model->m_abstractItemModel->hasChildren(index); - } else { - QHash<QByteArray,int>::const_iterator it = model->m_roleNames.find(propName); - if (it != model->m_roleNames.end()) { - return model->m_abstractItemModel->data(index, *it); - } else if (model->m_roles.count() == 1 && propName == "modelData") { - //for compatibility with other lists, assign modelData if there is only a single role - return model->m_abstractItemModel->data(index, model->m_roles.first()); - } - } - } - Q_ASSERT(!"Can never be reached"); - return QVariant(); -} - -QDeclarative1VisualDataModelData::QDeclarative1VisualDataModelData(int index, - QDeclarative1VisualDataModel *model) -: m_index(index), m_model(model), -m_meta(new QDeclarative1VisualDataModelDataMetaObject(this, QDeclarative1VisualDataModelPrivate::get(model)->m_delegateDataType)) -{ - ensureProperties(); -} - -QDeclarative1VisualDataModelData::~QDeclarative1VisualDataModelData() -{ -} - -void QDeclarative1VisualDataModelData::ensureProperties() -{ - QDeclarative1VisualDataModelPrivate *modelPriv = QDeclarative1VisualDataModelPrivate::get(m_model); - if (modelPriv->m_metaDataCacheable) { - if (!modelPriv->m_metaDataCreated) - modelPriv->createMetaData(); - if (modelPriv->m_metaDataCreated) - m_meta->setCached(true); - } -} - -int QDeclarative1VisualDataModelData::index() const -{ - return m_index; -} - -// This is internal only - it should not be set from qml -void QDeclarative1VisualDataModelData::setIndex(int index) -{ - m_index = index; - emit indexChanged(); -} - -//--------------------------------------------------------------------------- - -class QDeclarative1VisualDataModelPartsMetaObject : public QDeclarative1OpenMetaObject -{ -public: - QDeclarative1VisualDataModelPartsMetaObject(QObject *parent) - : QDeclarative1OpenMetaObject(parent) {} - - virtual void propertyCreated(int, QMetaPropertyBuilder &); - virtual QVariant initialValue(int); -}; - -class QDeclarative1VisualDataModelParts : public QObject -{ -Q_OBJECT -public: - QDeclarative1VisualDataModelParts(QDeclarative1VisualDataModel *parent); - -private: - friend class QDeclarative1VisualDataModelPartsMetaObject; - QDeclarative1VisualDataModel *model; -}; - -void QDeclarative1VisualDataModelPartsMetaObject::propertyCreated(int, QMetaPropertyBuilder &prop) -{ - prop.setWritable(false); -} - -QVariant QDeclarative1VisualDataModelPartsMetaObject::initialValue(int id) -{ - QDeclarative1VisualDataModel *m = new QDeclarative1VisualDataModel; - m->setParent(object()); - m->setPart(QString::fromUtf8(name(id))); - m->setModel(QVariant::fromValue(static_cast<QDeclarative1VisualDataModelParts *>(object())->model)); - - QVariant var = QVariant::fromValue((QObject *)m); - return var; -} - -QDeclarative1VisualDataModelParts::QDeclarative1VisualDataModelParts(QDeclarative1VisualDataModel *parent) -: QObject(parent), model(parent) -{ - new QDeclarative1VisualDataModelPartsMetaObject(this); -} - -QDeclarative1VisualDataModelPrivate::QDeclarative1VisualDataModelPrivate(QDeclarativeContext *ctxt) -: m_listModelInterface(0), m_abstractItemModel(0), m_visualItemModel(0), m_delegate(0) -, m_context(ctxt), m_modelDataPropId(-1), m_parts(0), m_delegateDataType(0), m_metaDataCreated(false) -, m_metaDataCacheable(false), m_delegateValidated(false), m_completePending(false), m_listAccessor(0) -{ -} - -QDeclarative1VisualDataModelData *QDeclarative1VisualDataModelPrivate::data(QObject *item) -{ - QDeclarative1VisualDataModelData *dataItem = - item->findChild<QDeclarative1VisualDataModelData *>(); - Q_ASSERT(dataItem); - return dataItem; -} - -//--------------------------------------------------------------------------- - -/*! - \qmlclass VisualDataModel QDeclarative1VisualDataModel - \inqmlmodule QtQuick 1 - \ingroup qml-working-with-data - \brief The VisualDataModel encapsulates a model and delegate - - A VisualDataModel encapsulates a model and the delegate that will - be instantiated for items in the model. - - It is usually not necessary to create VisualDataModel elements. - However, it can be useful for manipulating and accessing the \l modelIndex - when a QAbstractItemModel subclass is used as the - model. Also, VisualDataModel is used together with \l Package to - provide delegates to multiple views. - - The example below illustrates using a VisualDataModel with a ListView. - - \snippet doc/src/snippets/qtquick1/visualdatamodel.qml 0 -*/ - -QDeclarative1VisualDataModel::QDeclarative1VisualDataModel() -: QDeclarative1VisualModel(*(new QDeclarative1VisualDataModelPrivate(0))) -{ -} - -QDeclarative1VisualDataModel::QDeclarative1VisualDataModel(QDeclarativeContext *ctxt, QObject *parent) -: QDeclarative1VisualModel(*(new QDeclarative1VisualDataModelPrivate(ctxt)), parent) -{ -} - -QDeclarative1VisualDataModel::~QDeclarative1VisualDataModel() -{ - Q_D(QDeclarative1VisualDataModel); - if (d->m_listAccessor) - delete d->m_listAccessor; - if (d->m_delegateDataType) - d->m_delegateDataType->release(); -} - -/*! - \qmlproperty model QtQuick1::VisualDataModel::model - This property holds the model providing data for the VisualDataModel. - - The model provides a set of data that is used to create the items - for a view. For large or dynamic datasets the model is usually - provided by a C++ model object. The C++ model object must be a \l - {QAbstractItemModel} subclass or a simple list. - - Models can also be created directly in QML, using a \l{ListModel} or - \l{XmlListModel}. - - \sa {qmlmodels}{Data Models} -*/ -QVariant QDeclarative1VisualDataModel::model() const -{ - Q_D(const QDeclarative1VisualDataModel); - return d->m_modelVariant; -} - -void QDeclarative1VisualDataModel::setModel(const QVariant &model) -{ - Q_D(QDeclarative1VisualDataModel); - delete d->m_listAccessor; - d->m_listAccessor = 0; - d->m_modelVariant = model; - if (d->m_listModelInterface) { - // Assume caller has released all items. - QObject::disconnect(d->m_listModelInterface, SIGNAL(itemsChanged(int,int,QList<int>)), - this, SLOT(_q_itemsChanged(int,int,QList<int>))); - QObject::disconnect(d->m_listModelInterface, SIGNAL(itemsInserted(int,int)), - this, SLOT(_q_itemsInserted(int,int))); - QObject::disconnect(d->m_listModelInterface, SIGNAL(itemsRemoved(int,int)), - this, SLOT(_q_itemsRemoved(int,int))); - QObject::disconnect(d->m_listModelInterface, SIGNAL(itemsMoved(int,int,int)), - this, SLOT(_q_itemsMoved(int,int,int))); - d->m_listModelInterface = 0; - } else if (d->m_abstractItemModel) { - QObject::disconnect(d->m_abstractItemModel, SIGNAL(rowsInserted(QModelIndex,int,int)), - this, SLOT(_q_rowsInserted(QModelIndex,int,int))); - QObject::disconnect(d->m_abstractItemModel, SIGNAL(rowsRemoved(QModelIndex,int,int)), - this, SLOT(_q_rowsRemoved(QModelIndex,int,int))); - QObject::disconnect(d->m_abstractItemModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), - this, SLOT(_q_dataChanged(QModelIndex,QModelIndex))); - QObject::disconnect(d->m_abstractItemModel, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)), - this, SLOT(_q_rowsMoved(QModelIndex,int,int,QModelIndex,int))); - QObject::disconnect(d->m_abstractItemModel, SIGNAL(modelReset()), this, SLOT(_q_modelReset())); - QObject::disconnect(d->m_abstractItemModel, SIGNAL(layoutChanged()), this, SLOT(_q_layoutChanged())); - d->m_abstractItemModel = 0; - } else if (d->m_visualItemModel) { - QObject::disconnect(d->m_visualItemModel, SIGNAL(itemsInserted(int,int)), - this, SIGNAL(itemsInserted(int,int))); - QObject::disconnect(d->m_visualItemModel, SIGNAL(itemsRemoved(int,int)), - this, SIGNAL(itemsRemoved(int,int))); - QObject::disconnect(d->m_visualItemModel, SIGNAL(itemsMoved(int,int,int)), - this, SIGNAL(itemsMoved(int,int,int))); - QObject::disconnect(d->m_visualItemModel, SIGNAL(createdPackage(int,QDeclarative1Package*)), - this, SLOT(_q_createdPackage(int,QDeclarative1Package*))); - QObject::disconnect(d->m_visualItemModel, SIGNAL(destroyingPackage(QDeclarative1Package*)), - this, SLOT(_q_destroyingPackage(QDeclarative1Package*))); - d->m_visualItemModel = 0; - } - - d->m_roles.clear(); - d->m_roleNames.clear(); - if (d->m_delegateDataType) - d->m_delegateDataType->release(); - d->m_metaDataCreated = 0; - d->m_metaDataCacheable = false; - d->m_delegateDataType = new VDMDelegateDataType(&QDeclarative1VisualDataModelData::staticMetaObject, d->m_context?d->m_context->engine():qmlEngine(this)); - - QObject *object = qvariant_cast<QObject *>(model); - if (object && (d->m_listModelInterface = qobject_cast<QListModelInterface *>(object))) { - QObject::connect(d->m_listModelInterface, SIGNAL(itemsChanged(int,int,QList<int>)), - this, SLOT(_q_itemsChanged(int,int,QList<int>))); - QObject::connect(d->m_listModelInterface, SIGNAL(itemsInserted(int,int)), - this, SLOT(_q_itemsInserted(int,int))); - QObject::connect(d->m_listModelInterface, SIGNAL(itemsRemoved(int,int)), - this, SLOT(_q_itemsRemoved(int,int))); - QObject::connect(d->m_listModelInterface, SIGNAL(itemsMoved(int,int,int)), - this, SLOT(_q_itemsMoved(int,int,int))); - d->m_metaDataCacheable = true; - if (d->m_delegate && d->m_listModelInterface->count()) - emit itemsInserted(0, d->m_listModelInterface->count()); - return; - } else if (object && (d->m_abstractItemModel = qobject_cast<QAbstractItemModel *>(object))) { - QObject::connect(d->m_abstractItemModel, SIGNAL(rowsInserted(QModelIndex,int,int)), - this, SLOT(_q_rowsInserted(QModelIndex,int,int))); - QObject::connect(d->m_abstractItemModel, SIGNAL(rowsRemoved(QModelIndex,int,int)), - this, SLOT(_q_rowsRemoved(QModelIndex,int,int))); - QObject::connect(d->m_abstractItemModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), - this, SLOT(_q_dataChanged(QModelIndex,QModelIndex))); - QObject::connect(d->m_abstractItemModel, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)), - this, SLOT(_q_rowsMoved(QModelIndex,int,int,QModelIndex,int))); - QObject::connect(d->m_abstractItemModel, SIGNAL(modelReset()), this, SLOT(_q_modelReset())); - QObject::connect(d->m_abstractItemModel, SIGNAL(layoutChanged()), this, SLOT(_q_layoutChanged())); - d->m_metaDataCacheable = true; - if (d->m_abstractItemModel->canFetchMore(d->m_root)) - d->m_abstractItemModel->fetchMore(d->m_root); - return; - } - if ((d->m_visualItemModel = qvariant_cast<QDeclarative1VisualDataModel *>(model))) { - QObject::connect(d->m_visualItemModel, SIGNAL(itemsInserted(int,int)), - this, SIGNAL(itemsInserted(int,int))); - QObject::connect(d->m_visualItemModel, SIGNAL(itemsRemoved(int,int)), - this, SIGNAL(itemsRemoved(int,int))); - QObject::connect(d->m_visualItemModel, SIGNAL(itemsMoved(int,int,int)), - this, SIGNAL(itemsMoved(int,int,int))); - QObject::connect(d->m_visualItemModel, SIGNAL(createdPackage(int,QDeclarative1Package*)), - this, SLOT(_q_createdPackage(int,QDeclarative1Package*))); - QObject::connect(d->m_visualItemModel, SIGNAL(destroyingPackage(QDeclarative1Package*)), - this, SLOT(_q_destroyingPackage(QDeclarative1Package*))); - return; - } - d->m_listAccessor = new QDeclarative1ListAccessor; - d->m_listAccessor->setList(model, d->m_context?d->m_context->engine():qmlEngine(this)); - if (d->m_listAccessor->type() != QDeclarative1ListAccessor::ListProperty) - d->m_metaDataCacheable = true; - if (d->m_delegate && d->modelCount()) { - emit itemsInserted(0, d->modelCount()); - emit countChanged(); - } -} - -/*! - \qmlproperty Component QtQuick1::VisualDataModel::delegate - - The delegate provides a template defining each item instantiated by a view. - The index is exposed as an accessible \c index property. Properties of the - model are also available depending upon the type of \l {qmlmodels}{Data Model}. -*/ -QDeclarativeComponent *QDeclarative1VisualDataModel::delegate() const -{ - Q_D(const QDeclarative1VisualDataModel); - if (d->m_visualItemModel) - return d->m_visualItemModel->delegate(); - return d->m_delegate; -} - -void QDeclarative1VisualDataModel::setDelegate(QDeclarativeComponent *delegate) -{ - Q_D(QDeclarative1VisualDataModel); - bool wasValid = d->m_delegate != 0; - d->m_delegate = delegate; - d->m_delegateValidated = false; - if (!wasValid && d->modelCount() && d->m_delegate) { - emit itemsInserted(0, d->modelCount()); - emit countChanged(); - } - if (wasValid && !d->m_delegate && d->modelCount()) { - emit itemsRemoved(0, d->modelCount()); - emit countChanged(); - } -} - -/*! - \qmlproperty QModelIndex QtQuick1::VisualDataModel::rootIndex - - QAbstractItemModel provides a hierarchical tree of data, whereas - QML only operates on list data. \c rootIndex allows the children of - any node in a QAbstractItemModel to be provided by this model. - - This property only affects models of type QAbstractItemModel that - are hierarchical (e.g, a tree model). - - For example, here is a simple interactive file system browser. - When a directory name is clicked, the view's \c rootIndex is set to the - QModelIndex node of the clicked directory, thus updating the view to show - the new directory's contents. - - \c main.cpp: - \snippet doc/src/snippets/qtquick1/visualdatamodel_rootindex/main.cpp 0 - - \c view.qml: - \snippet doc/src/snippets/qtquick1/visualdatamodel_rootindex/view.qml 0 - - If the \l model is a QAbstractItemModel subclass, the delegate can also - reference a \c hasModelChildren property (optionally qualified by a - \e model. prefix) that indicates whether the delegate's model item has - any child nodes. - - - \sa modelIndex(), parentModelIndex() -*/ -QVariant QDeclarative1VisualDataModel::rootIndex() const -{ - Q_D(const QDeclarative1VisualDataModel); - return QVariant::fromValue(d->m_root); -} - -void QDeclarative1VisualDataModel::setRootIndex(const QVariant &root) -{ - Q_D(QDeclarative1VisualDataModel); - QModelIndex modelIndex = qvariant_cast<QModelIndex>(root); - if (d->m_root != modelIndex) { - int oldCount = d->modelCount(); - d->m_root = modelIndex; - if (d->m_abstractItemModel && d->m_abstractItemModel->canFetchMore(modelIndex)) - d->m_abstractItemModel->fetchMore(modelIndex); - int newCount = d->modelCount(); - if (d->m_delegate && oldCount) - emit itemsRemoved(0, oldCount); - if (d->m_delegate && newCount) - emit itemsInserted(0, newCount); - if (newCount != oldCount) - emit countChanged(); - emit rootIndexChanged(); - } -} - - -/*! - \qmlmethod QModelIndex QtQuick1::VisualDataModel::modelIndex(int index) - - QAbstractItemModel provides a hierarchical tree of data, whereas - QML only operates on list data. This function assists in using - tree models in QML. - - Returns a QModelIndex for the specified index. - This value can be assigned to rootIndex. - - \sa rootIndex -*/ -QVariant QDeclarative1VisualDataModel::modelIndex(int idx) const -{ - Q_D(const QDeclarative1VisualDataModel); - if (d->m_abstractItemModel) - return QVariant::fromValue(d->m_abstractItemModel->index(idx, 0, d->m_root)); - return QVariant::fromValue(QModelIndex()); -} - -/*! - \qmlmethod QModelIndex QtQuick1::VisualDataModel::parentModelIndex() - - QAbstractItemModel provides a hierarchical tree of data, whereas - QML only operates on list data. This function assists in using - tree models in QML. - - Returns a QModelIndex for the parent of the current rootIndex. - This value can be assigned to rootIndex. - - \sa rootIndex -*/ -QVariant QDeclarative1VisualDataModel::parentModelIndex() const -{ - Q_D(const QDeclarative1VisualDataModel); - if (d->m_abstractItemModel) - return QVariant::fromValue(d->m_abstractItemModel->parent(d->m_root)); - return QVariant::fromValue(QModelIndex()); -} - -QString QDeclarative1VisualDataModel::part() const -{ - Q_D(const QDeclarative1VisualDataModel); - return d->m_part; -} - -void QDeclarative1VisualDataModel::setPart(const QString &part) -{ - Q_D(QDeclarative1VisualDataModel); - d->m_part = part; -} - -int QDeclarative1VisualDataModel::count() const -{ - Q_D(const QDeclarative1VisualDataModel); - if (d->m_visualItemModel) - return d->m_visualItemModel->count(); - if (!d->m_delegate) - return 0; - return d->modelCount(); -} - -QDeclarativeItem *QDeclarative1VisualDataModel::item(int index, bool complete) -{ - Q_D(QDeclarative1VisualDataModel); - if (d->m_visualItemModel) - return d->m_visualItemModel->item(index, d->m_part.toUtf8(), complete); - return item(index, QByteArray(), complete); -} - -/* - Returns ReleaseStatus flags. -*/ -QDeclarative1VisualDataModel::ReleaseFlags QDeclarative1VisualDataModel::release(QDeclarativeItem *item) -{ - Q_D(QDeclarative1VisualDataModel); - if (d->m_visualItemModel) - return d->m_visualItemModel->release(item); - - ReleaseFlags stat = 0; - QObject *obj = item; - bool inPackage = false; - - QHash<QObject*,QDeclarative1Package*>::iterator it = d->m_packaged.find(item); - if (it != d->m_packaged.end()) { - QDeclarative1Package *package = *it; - d->m_packaged.erase(it); - if (d->m_packaged.contains(item)) - stat |= Referenced; - inPackage = true; - obj = package; // fall through and delete - } - - if (d->m_cache.releaseItem(obj)) { - // Remove any bindings to avoid warnings due to parent change. - QObjectPrivate *p = QObjectPrivate::get(obj); - Q_ASSERT(p->declarativeData); - QDeclarativeData *d = static_cast<QDeclarativeData*>(p->declarativeData); - if (d->ownContext && d->context) - d->context->clearContext(); - - if (inPackage) { - emit destroyingPackage(qobject_cast<QDeclarative1Package*>(obj)); - } else { - if (item->scene()) - item->scene()->removeItem(item); - } - stat |= Destroyed; - obj->deleteLater(); - } else if (!inPackage) { - stat |= Referenced; - } - - return stat; -} - -/*! - \qmlproperty object QtQuick1::VisualDataModel::parts - - The \a parts property selects a VisualDataModel which creates - delegates from the part named. This is used in conjunction with - the \l Package element. - - For example, the code below selects a model which creates - delegates named \e list from a \l Package: - - \code - VisualDataModel { - id: visualModel - delegate: Package { - Item { Package.name: "list" } - } - model: myModel - } - - ListView { - width: 200; height:200 - model: visualModel.parts.list - } - \endcode - - \sa Package -*/ -QObject *QDeclarative1VisualDataModel::parts() -{ - Q_D(QDeclarative1VisualDataModel); - if (!d->m_parts) - d->m_parts = new QDeclarative1VisualDataModelParts(this); - return d->m_parts; -} - -QDeclarativeItem *QDeclarative1VisualDataModel::item(int index, const QByteArray &viewId, bool complete) -{ - Q_D(QDeclarative1VisualDataModel); - if (d->m_visualItemModel) - return d->m_visualItemModel->item(index, viewId, complete); - - if (d->modelCount() <= 0 || !d->m_delegate) - return 0; - QObject *nobj = d->m_cache.getItem(index); - bool needComplete = false; - if (!nobj) { - QDeclarativeContext *ccontext = d->m_context; - if (!ccontext) ccontext = qmlContext(this); - QDeclarativeContext *ctxt = new QDeclarativeContext(ccontext); - QDeclarative1VisualDataModelData *data = new QDeclarative1VisualDataModelData(index, this); - if ((!d->m_listModelInterface || !d->m_abstractItemModel) && d->m_listAccessor - && d->m_listAccessor->type() == QDeclarative1ListAccessor::ListProperty) { - ctxt->setContextObject(d->m_listAccessor->at(index).value<QObject*>()); - ctxt = new QDeclarativeContext(ctxt, ctxt); - } - ctxt->setContextProperty(QLatin1String("model"), data); - ctxt->setContextObject(data); - d->m_completePending = false; - nobj = d->m_delegate->beginCreate(ctxt); - if (complete) { - d->m_delegate->completeCreate(); - } else { - d->m_completePending = true; - needComplete = true; - } - if (nobj) { - QDeclarative_setParent_noEvent(ctxt, nobj); - QDeclarative_setParent_noEvent(data, nobj); - d->m_cache.insertItem(index, nobj); - if (QDeclarative1Package *package = qobject_cast<QDeclarative1Package *>(nobj)) - emit createdPackage(index, package); - } else { - delete data; - delete ctxt; - qmlInfo(this, d->m_delegate->errors()) << "Error creating delegate"; - } - } - QDeclarativeItem *item = qobject_cast<QDeclarativeItem *>(nobj); - if (!item) { - QDeclarative1Package *package = qobject_cast<QDeclarative1Package *>(nobj); - if (package) { - QObject *o = package->part(QString::fromUtf8(viewId)); - item = qobject_cast<QDeclarativeItem *>(o); - if (item) - d->m_packaged.insertMulti(item, package); - } - } - if (!item) { - if (needComplete) - d->m_delegate->completeCreate(); - d->m_cache.releaseItem(nobj); - if (!d->m_delegateValidated) { - qmlInfo(d->m_delegate) << QDeclarative1VisualDataModel::tr("Delegate component must be Item type."); - d->m_delegateValidated = true; - } - } - if (d->modelCount()-1 == index && d->m_abstractItemModel && d->m_abstractItemModel->canFetchMore(d->m_root)) - d->m_abstractItemModel->fetchMore(d->m_root); - - return item; -} - -bool QDeclarative1VisualDataModel::completePending() const -{ - Q_D(const QDeclarative1VisualDataModel); - if (d->m_visualItemModel) - return d->m_visualItemModel->completePending(); - return d->m_completePending; -} - -void QDeclarative1VisualDataModel::completeItem() -{ - Q_D(QDeclarative1VisualDataModel); - if (d->m_visualItemModel) { - d->m_visualItemModel->completeItem(); - return; - } - - d->m_delegate->completeCreate(); - d->m_completePending = false; -} - -QString QDeclarative1VisualDataModel::stringValue(int index, const QString &name) -{ - Q_D(QDeclarative1VisualDataModel); - if (d->m_visualItemModel) - return d->m_visualItemModel->stringValue(index, name); - - if ((!d->m_listModelInterface || !d->m_abstractItemModel) && d->m_listAccessor) { - if (QObject *object = d->m_listAccessor->at(index).value<QObject*>()) - return object->property(name.toUtf8()).toString(); - } - - if ((!d->m_listModelInterface && !d->m_abstractItemModel) || !d->m_delegate) - return QString(); - - QString val; - QObject *data = 0; - bool tempData = false; - - if (QObject *nobj = d->m_cache.item(index)) - data = d->data(nobj); - if (!data) { - data = new QDeclarative1VisualDataModelData(index, this); - tempData = true; - } - - QDeclarativeData *ddata = QDeclarativeData::get(data); - if (ddata && ddata->propertyCache) { - QDeclarativePropertyData *prop = ddata->propertyCache->property(name); - if (prop) { - if (prop->propType == QVariant::String) { - void *args[] = { &val, 0 }; - QMetaObject::metacall(data, QMetaObject::ReadProperty, prop->coreIndex, args); - } else if (prop->propType == qMetaTypeId<QVariant>()) { - QVariant v; - void *args[] = { &v, 0 }; - QMetaObject::metacall(data, QMetaObject::ReadProperty, prop->coreIndex, args); - val = v.toString(); - } - } else { - val = data->property(name.toUtf8()).toString(); - } - } else { - val = data->property(name.toUtf8()).toString(); - } - - if (tempData) - delete data; - - return val; -} - -int QDeclarative1VisualDataModel::indexOf(QDeclarativeItem *item, QObject *) const -{ - QVariant val = QDeclarativeEngine::contextForObject(item)->contextProperty(QLatin1String("index")); - return val.toInt(); - return -1; -} - -void QDeclarative1VisualDataModel::setWatchedRoles(QList<QByteArray> roles) -{ - Q_D(QDeclarative1VisualDataModel); - d->watchedRoles = roles; - d->watchedRoleIds.clear(); -} - -void QDeclarative1VisualDataModel::_q_itemsChanged(int index, int count, - const QList<int> &roles) -{ - Q_D(QDeclarative1VisualDataModel); - bool changed = false; - if (!d->watchedRoles.isEmpty() && d->watchedRoleIds.isEmpty()) { - foreach (QByteArray r, d->watchedRoles) { - if (d->m_roleNames.contains(r)) - d->watchedRoleIds << d->m_roleNames.value(r); - } - } - - for (QHash<int,QDeclarative1VisualDataModelPrivate::ObjectRef>::ConstIterator iter = d->m_cache.begin(); - iter != d->m_cache.end(); ++iter) { - const int idx = iter.key(); - - if (idx >= index && idx < index+count) { - QDeclarative1VisualDataModelPrivate::ObjectRef objRef = *iter; - QDeclarative1VisualDataModelData *data = d->data(objRef.obj); - for (int roleIdx = 0; roleIdx < roles.count(); ++roleIdx) { - int role = roles.at(roleIdx); - if (!changed && !d->watchedRoleIds.isEmpty() && d->watchedRoleIds.contains(role)) - changed = true; - int propId = data->propForRole(role); - if (propId != -1) { - if (data->hasValue(propId)) { - if (d->m_listModelInterface) { - data->setValue(propId, d->m_listModelInterface->data(idx, role)); - } else if (d->m_abstractItemModel) { - QModelIndex index = d->m_abstractItemModel->index(idx, 0, d->m_root); - data->setValue(propId, d->m_abstractItemModel->data(index, role)); - } - } - } else { - QString roleName; - if (d->m_listModelInterface) - roleName = d->m_listModelInterface->toString(role); - else if (d->m_abstractItemModel) - roleName = QString::fromUtf8(d->m_abstractItemModel->roleNames().value(role)); - qmlInfo(this) << "Changing role not present in item: " << roleName; - } - } - if (d->m_roles.count() == 1) { - // Handle the modelData role we add if there is just one role. - int propId = data->modelDataPropertyId(); - if (data->hasValue(propId)) { - int role = d->m_roles.at(0); - if (d->m_listModelInterface) { - data->setValue(propId, d->m_listModelInterface->data(idx, role)); - } else if (d->m_abstractItemModel) { - QModelIndex index = d->m_abstractItemModel->index(idx, 0, d->m_root); - data->setValue(propId, d->m_abstractItemModel->data(index, role)); - } - } - } - } - } - if (changed) - emit itemsChanged(index, count); -} - -void QDeclarative1VisualDataModel::_q_itemsInserted(int index, int count) -{ - Q_D(QDeclarative1VisualDataModel); - if (!count) - return; - // XXX - highly inefficient - QHash<int,QDeclarative1VisualDataModelPrivate::ObjectRef> items; - for (QHash<int,QDeclarative1VisualDataModelPrivate::ObjectRef>::Iterator iter = d->m_cache.begin(); - iter != d->m_cache.end(); ) { - - if (iter.key() >= index) { - QDeclarative1VisualDataModelPrivate::ObjectRef objRef = *iter; - int index = iter.key() + count; - iter = d->m_cache.erase(iter); - - items.insert(index, objRef); - - QDeclarative1VisualDataModelData *data = d->data(objRef.obj); - data->setIndex(index); - } else { - ++iter; - } - } - d->m_cache.unite(items); - - emit itemsInserted(index, count); - emit countChanged(); -} - -void QDeclarative1VisualDataModel::_q_itemsRemoved(int index, int count) -{ - Q_D(QDeclarative1VisualDataModel); - if (!count) - return; - // XXX - highly inefficient - QHash<int, QDeclarative1VisualDataModelPrivate::ObjectRef> items; - for (QHash<int, QDeclarative1VisualDataModelPrivate::ObjectRef>::Iterator iter = d->m_cache.begin(); - iter != d->m_cache.end(); ) { - if (iter.key() >= index && iter.key() < index + count) { - QDeclarative1VisualDataModelPrivate::ObjectRef objRef = *iter; - iter = d->m_cache.erase(iter); - items.insertMulti(-1, objRef); //XXX perhaps better to maintain separately - QDeclarative1VisualDataModelData *data = d->data(objRef.obj); - data->setIndex(-1); - } else if (iter.key() >= index + count) { - QDeclarative1VisualDataModelPrivate::ObjectRef objRef = *iter; - int index = iter.key() - count; - iter = d->m_cache.erase(iter); - items.insert(index, objRef); - QDeclarative1VisualDataModelData *data = d->data(objRef.obj); - data->setIndex(index); - } else { - ++iter; - } - } - - d->m_cache.unite(items); - emit itemsRemoved(index, count); - emit countChanged(); -} - -void QDeclarative1VisualDataModel::_q_itemsMoved(int from, int to, int count) -{ - Q_D(QDeclarative1VisualDataModel); - // XXX - highly inefficient - QHash<int,QDeclarative1VisualDataModelPrivate::ObjectRef> items; - for (QHash<int,QDeclarative1VisualDataModelPrivate::ObjectRef>::Iterator iter = d->m_cache.begin(); - iter != d->m_cache.end(); ) { - - if (iter.key() >= from && iter.key() < from + count) { - QDeclarative1VisualDataModelPrivate::ObjectRef objRef = *iter; - int index = iter.key() - from + to; - iter = d->m_cache.erase(iter); - - items.insert(index, objRef); - - QDeclarative1VisualDataModelData *data = d->data(objRef.obj); - data->setIndex(index); - } else { - ++iter; - } - } - for (QHash<int,QDeclarative1VisualDataModelPrivate::ObjectRef>::Iterator iter = d->m_cache.begin(); - iter != d->m_cache.end(); ) { - - int diff = from > to ? count : -count; - if (iter.key() >= qMin(from,to) && iter.key() < qMax(from+count,to+count)) { - QDeclarative1VisualDataModelPrivate::ObjectRef objRef = *iter; - int index = iter.key() + diff; - iter = d->m_cache.erase(iter); - - items.insert(index, objRef); - - QDeclarative1VisualDataModelData *data = d->data(objRef.obj); - data->setIndex(index); - } else { - ++iter; - } - } - d->m_cache.unite(items); - - emit itemsMoved(from, to, count); -} - -void QDeclarative1VisualDataModel::_q_rowsInserted(const QModelIndex &parent, int begin, int end) -{ - Q_D(QDeclarative1VisualDataModel); - if (parent == d->m_root) - _q_itemsInserted(begin, end - begin + 1); -} - -void QDeclarative1VisualDataModel::_q_rowsRemoved(const QModelIndex &parent, int begin, int end) -{ - Q_D(QDeclarative1VisualDataModel); - if (parent == d->m_root) - _q_itemsRemoved(begin, end - begin + 1); -} - -void QDeclarative1VisualDataModel::_q_rowsMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow) -{ - Q_D(QDeclarative1VisualDataModel); - const int count = sourceEnd - sourceStart + 1; - if (destinationParent == d->m_root && sourceParent == d->m_root) { - _q_itemsMoved(sourceStart, sourceStart > destinationRow ? destinationRow : destinationRow-count, count); - } else if (sourceParent == d->m_root) { - _q_itemsRemoved(sourceStart, count); - } else if (destinationParent == d->m_root) { - _q_itemsInserted(destinationRow, count); - } -} - -void QDeclarative1VisualDataModel::_q_dataChanged(const QModelIndex &begin, const QModelIndex &end) -{ - Q_D(QDeclarative1VisualDataModel); - if (begin.parent() == d->m_root) - _q_itemsChanged(begin.row(), end.row() - begin.row() + 1, d->m_roles); -} - -void QDeclarative1VisualDataModel::_q_layoutChanged() -{ - Q_D(QDeclarative1VisualDataModel); - _q_itemsChanged(0, count(), d->m_roles); -} - -void QDeclarative1VisualDataModel::_q_modelReset() -{ - Q_D(QDeclarative1VisualDataModel); - d->m_root = QModelIndex(); - emit modelReset(); - emit rootIndexChanged(); - if (d->m_abstractItemModel && d->m_abstractItemModel->canFetchMore(d->m_root)) - d->m_abstractItemModel->fetchMore(d->m_root); -} - -void QDeclarative1VisualDataModel::_q_createdPackage(int index, QDeclarative1Package *package) -{ - Q_D(QDeclarative1VisualDataModel); - emit createdItem(index, qobject_cast<QDeclarativeItem*>(package->part(d->m_part))); -} - -void QDeclarative1VisualDataModel::_q_destroyingPackage(QDeclarative1Package *package) -{ - Q_D(QDeclarative1VisualDataModel); - emit destroyingItem(qobject_cast<QDeclarativeItem*>(package->part(d->m_part))); -} - - - -QT_END_NAMESPACE - -QML_DECLARE_TYPE(QListModelInterface) - -#include <qdeclarativevisualitemmodel.moc> |