IndentityProxyStrategy Class Reference

Strategy for ComponentProxyModel which makes it identical to source model. More...

Inheritance diagram for IndentityProxyStrategy:

Collaboration diagram for IndentityProxyStrategy:

Public Types
using	map_t = QMap< QPersistentModelIndex, QPersistentModelIndex >

Public Member Functions
void	buildModelMap (SessionModel *source, ComponentProxyModel *proxy)
virtual void	onDataChanged (SessionModel *source, ComponentProxyModel *proxy)
const map_t &	proxySourceParent ()
void	setRootIndex (const QModelIndex &sourceRootIndex)
const map_t &	sourceToProxy ()

Protected Member Functions
QModelIndex	createProxyIndex (int nrow, int ncol, void *adata)
	Method to ask proxy to create an index using friendship of ProxyModelStrategy and ComponentProxyModel. More...
bool	processSourceIndex (const QModelIndex &index)
	Builds one-to-one mapping for source and proxy. More...

Protected Attributes
ComponentProxyModel *	m_proxy
QMap< QPersistentModelIndex, QPersistentModelIndex >	m_proxySourceParent
SessionModel *	m_source
QPersistentModelIndex	m_sourceRootIndex
QMap< QPersistentModelIndex, QPersistentModelIndex >	m_sourceToProxy
	Mapping of proxy model indices to indices of parent in source model. More...

Detailed Description

Strategy for ComponentProxyModel which makes it identical to source model.

Definition at line 57 of file ProxyModelStrategy.h.

Member Typedef Documentation

map_t

using ProxyModelStrategy::map_t = QMap<QPersistentModelIndex, QPersistentModelIndex>

inherited

Definition at line 28 of file ProxyModelStrategy.h.

Member Function Documentation

buildModelMap()

void ProxyModelStrategy::buildModelMap ( SessionModel *  source, ComponentProxyModel *  proxy  )

inherited

Definition at line 21 of file ProxyModelStrategy.cpp.

{
    m_sourceToProxy.clear();
    m_proxySourceParent.clear();
    m_source = source;
    m_proxy = proxy;
 
    ModelUtils::iterate_if(m_sourceRootIndex, source, [=](const QModelIndex& index) -> bool {
        return processSourceIndex(index);
    });
 
    // kind of hack since we have to visit col=1 which has QModelIndex() parent
    if (m_sourceRootIndex.isValid())
        processSourceIndex(m_sourceRootIndex.sibling(m_sourceRootIndex.row(), 1));
}

References ModelUtils::iterate_if(), ProxyModelStrategy::m_proxy, ProxyModelStrategy::m_proxySourceParent, ProxyModelStrategy::m_source, ProxyModelStrategy::m_sourceRootIndex, ProxyModelStrategy::m_sourceToProxy, and ProxyModelStrategy::processSourceIndex().

Referenced by ComponentProxyStrategy::onDataChanged().

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createProxyIndex()

QModelIndex ProxyModelStrategy::createProxyIndex ( int  nrow, int  ncol, void *  adata  )

protectedinherited

Method to ask proxy to create an index using friendship of ProxyModelStrategy and ComponentProxyModel.

Definition at line 62 of file ProxyModelStrategy.cpp.

{
    ASSERT(m_proxy);
    return m_proxy->createIndex(nrow, ncol, adata);
}

References ASSERT, and ProxyModelStrategy::m_proxy.

Referenced by ComponentProxyStrategy::processDefaultItem(), ComponentProxyStrategy::processGroupItem(), ComponentProxyStrategy::processRootItem(), processSourceIndex(), and ComponentProxyStrategy::processSubGroupItem().

onDataChanged()

void ProxyModelStrategy::onDataChanged ( SessionModel *  source, ComponentProxyModel *  proxy  )

virtualinherited

Reimplemented in ComponentProxyStrategy.

Definition at line 37 of file ProxyModelStrategy.cpp.

{
    Q_UNUSED(source);
    Q_UNUSED(proxy);
    // we do not expect here change of model layout
}

processSourceIndex()

bool IndentityProxyStrategy::processSourceIndex ( const QModelIndex &  index )

protectedvirtual

Builds one-to-one mapping for source and proxy.

Implements ProxyModelStrategy.

Definition at line 70 of file ProxyModelStrategy.cpp.

{
    QPersistentModelIndex proxyIndex =
        createProxyIndex(index.row(), index.column(), index.internalPointer());
    m_sourceToProxy.insert(QPersistentModelIndex(index), proxyIndex);
 
    QPersistentModelIndex sourceParent;
    if (index.parent().isValid())
        sourceParent = index.parent();
 
    m_proxySourceParent.insert(proxyIndex, sourceParent);
 
    return true;
}

References ProxyModelStrategy::createProxyIndex(), ProxyModelStrategy::m_proxySourceParent, and ProxyModelStrategy::m_sourceToProxy.

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proxySourceParent()

const ProxyModelStrategy::map_t & ProxyModelStrategy::proxySourceParent ( )

inherited

Definition at line 49 of file ProxyModelStrategy.cpp.

{
    return m_proxySourceParent;
}

References ProxyModelStrategy::m_proxySourceParent.

setRootIndex()

void ProxyModelStrategy::setRootIndex ( const QModelIndex &  sourceRootIndex )

inherited

Definition at line 54 of file ProxyModelStrategy.cpp.

{
    m_sourceRootIndex = QPersistentModelIndex(sourceRootIndex);
}

References ProxyModelStrategy::m_sourceRootIndex.

sourceToProxy()

const ProxyModelStrategy::map_t & ProxyModelStrategy::sourceToProxy ( )

inherited

Definition at line 44 of file ProxyModelStrategy.cpp.

{
    return m_sourceToProxy;
}

References ProxyModelStrategy::m_sourceToProxy.

Member Data Documentation

m_proxy

ComponentProxyModel* ProxyModelStrategy::m_proxy

protectedinherited

Definition at line 52 of file ProxyModelStrategy.h.

Referenced by ProxyModelStrategy::buildModelMap(), and ProxyModelStrategy::createProxyIndex().

m_proxySourceParent

QMap<QPersistentModelIndex, QPersistentModelIndex> ProxyModelStrategy::m_proxySourceParent

protectedinherited

Definition at line 48 of file ProxyModelStrategy.h.

Referenced by ProxyModelStrategy::buildModelMap(), ComponentProxyStrategy::processDefaultItem(), ComponentProxyStrategy::processGroupItem(), ComponentProxyStrategy::processRootItem(), processSourceIndex(), ComponentProxyStrategy::processSubGroupItem(), and ProxyModelStrategy::proxySourceParent().

m_source

SessionModel* ProxyModelStrategy::m_source

protectedinherited

Definition at line 51 of file ProxyModelStrategy.h.

Referenced by ProxyModelStrategy::buildModelMap(), and ComponentProxyStrategy::processSourceIndex().

m_sourceRootIndex

QPersistentModelIndex ProxyModelStrategy::m_sourceRootIndex

protectedinherited

Definition at line 50 of file ProxyModelStrategy.h.

Referenced by ProxyModelStrategy::buildModelMap(), ComponentProxyStrategy::isNewRootItem(), ComponentProxyStrategy::isPropertyRelated(), and ProxyModelStrategy::setRootIndex().

m_sourceToProxy

QMap<QPersistentModelIndex, QPersistentModelIndex> ProxyModelStrategy::m_sourceToProxy

protectedinherited

Mapping of proxy model indices to indices of parent in source model.

Definition at line 46 of file ProxyModelStrategy.h.

Referenced by ProxyModelStrategy::buildModelMap(), ComponentProxyStrategy::processDefaultItem(), ComponentProxyStrategy::processGroupItem(), ComponentProxyStrategy::processRootItem(), processSourceIndex(), ComponentProxyStrategy::processSubGroupItem(), and ProxyModelStrategy::sourceToProxy().

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The documentation for this class was generated from the following files:

• /home/www/ba/GUI/coregui/Models/ProxyModelStrategy.h
• /home/www/ba/GUI/coregui/Models/ProxyModelStrategy.cpp