ProxyModelStrategy Class Reference

Base class for proxy strategies in ComponentProxyModel. More...

Inheritance diagram for ProxyModelStrategy:

Collaboration diagram for ProxyModelStrategy:

Public Types
using	map_t = QMap< QPersistentModelIndex, QPersistentModelIndex >

Public Member Functions
	ProxyModelStrategy ()
virtual	~ProxyModelStrategy ()=default
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...
virtual bool	processSourceIndex (const QModelIndex &index)=0
	Mapping of proxy model indices to indices in source model. 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

Base class for proxy strategies in ComponentProxyModel.

Definition at line 26 of file ProxyModelStrategy.h.

Member Typedef Documentation

map_t

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

Definition at line 28 of file ProxyModelStrategy.h.

Constructor & Destructor Documentation

ProxyModelStrategy()

ProxyModelStrategy::ProxyModelStrategy

(

)

Definition at line 19 of file ProxyModelStrategy.cpp.

: m_source(nullptr), m_proxy(nullptr) {}

~ProxyModelStrategy()

virtual ProxyModelStrategy::~ProxyModelStrategy ( )

virtualdefault

Member Function Documentation

buildModelMap()

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

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(), m_proxy, m_proxySourceParent, m_source, m_sourceRootIndex, m_sourceToProxy, and processSourceIndex().

Referenced by ComponentProxyStrategy::onDataChanged().

Here is the call graph for this function:

createProxyIndex()

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

protected

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 m_proxy.

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

onDataChanged()

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

virtual

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()

virtual bool ProxyModelStrategy::processSourceIndex ( const QModelIndex &  index )

protectedpure virtual

Mapping of proxy model indices to indices in source model.

Implemented in IndentityProxyStrategy, and ComponentProxyStrategy.

Referenced by buildModelMap().

proxySourceParent()

const ProxyModelStrategy::map_t & ProxyModelStrategy::proxySourceParent

(

)

Definition at line 49 of file ProxyModelStrategy.cpp.

{
    return m_proxySourceParent;
}

References m_proxySourceParent.

setRootIndex()

void ProxyModelStrategy::setRootIndex

(

const QModelIndex &

sourceRootIndex

)

Definition at line 54 of file ProxyModelStrategy.cpp.

{
    m_sourceRootIndex = QPersistentModelIndex(sourceRootIndex);
}

References m_sourceRootIndex.

sourceToProxy()

const ProxyModelStrategy::map_t & ProxyModelStrategy::sourceToProxy

(

)

Definition at line 44 of file ProxyModelStrategy.cpp.

{
    return m_sourceToProxy;
}

References m_sourceToProxy.

Member Data Documentation

m_proxy

ComponentProxyModel* ProxyModelStrategy::m_proxy

protected

Definition at line 52 of file ProxyModelStrategy.h.

Referenced by buildModelMap(), and createProxyIndex().

m_proxySourceParent

QMap<QPersistentModelIndex, QPersistentModelIndex> ProxyModelStrategy::m_proxySourceParent

protected

Definition at line 48 of file ProxyModelStrategy.h.

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

m_source

SessionModel* ProxyModelStrategy::m_source

protected

Definition at line 51 of file ProxyModelStrategy.h.

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

m_sourceRootIndex

QPersistentModelIndex ProxyModelStrategy::m_sourceRootIndex

protected

Definition at line 50 of file ProxyModelStrategy.h.

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

m_sourceToProxy

QMap<QPersistentModelIndex, QPersistentModelIndex> ProxyModelStrategy::m_sourceToProxy

protected

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

Definition at line 46 of file ProxyModelStrategy.h.

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