bool CMake::writeProjects()
{
for(Map<String, Project>::Node* i = projects.getFirst(); i; i = i->getNext())
if(!writeProject(i->key, i->data))
return false;
return true;
}
bool VCProject::write() const
{
// Write the template
m_template->write(m_urlSchemes);
return writeProject() && writeFilters();
}
bool QgsProject::write()
{
clearError();
// if we have problems creating or otherwise writing to the project file,
// let's find out up front before we go through all the hand-waving
// necessary to create all the Dom objects
if ( !imp_->file.open( QIODevice::WriteOnly | QIODevice::Text | QIODevice::Truncate ) )
{
imp_->file.close(); // even though we got an error, let's make
// sure it's closed anyway
setError( tr( "Unable to save to file %1" ).arg( imp_->file.fileName() ) );
return false;
}
QFileInfo myFileInfo( imp_->file );
if ( !myFileInfo.isWritable() )
{
// even though we got an error, let's make
// sure it's closed anyway
imp_->file.close();
setError( tr( "%1 is not writable. Please adjust permissions (if possible) and try again." )
.arg( imp_->file.fileName() ) );
return false;
}
QDomImplementation DomImplementation;
QDomDocumentType documentType =
DomImplementation.createDocumentType( "qgis", "http://mrcc.com/qgis.dtd",
"SYSTEM" );
std::auto_ptr < QDomDocument > doc =
std::auto_ptr < QDomDocument > ( new QDomDocument( documentType ) );
QDomElement qgisNode = doc->createElement( "qgis" );
qgisNode.setAttribute( "projectname", title() );
qgisNode.setAttribute( "version", QString( "%1" ).arg( QGis::QGIS_VERSION ) );
doc->appendChild( qgisNode );
// title
QDomElement titleNode = doc->createElement( "title" );
qgisNode.appendChild( titleNode );
QDomText titleText = doc->createTextNode( title() ); // XXX why have title TWICE?
titleNode.appendChild( titleText );
// let map canvas and legend write their information
emit writeProject( *doc );
// within top level node save list of layers
QMap<QString, QgsMapLayer*> & layers = QgsMapLayerRegistry::instance()->mapLayers();
// Iterate over layers in zOrder
// Call writeXML() on each
QDomElement projectLayersNode = doc->createElement( "projectlayers" );
projectLayersNode.setAttribute( "layercount", qulonglong( layers.size() ) );
QMap<QString, QgsMapLayer*>::iterator li = layers.begin();
while ( li != layers.end() )
{
//QgsMapLayer *ml = QgsMapLayerRegistry::instance()->mapLayer(*li);
QgsMapLayer* ml = li.value();
if ( ml )
{
QString externalProjectFile = layerIsEmbedded( ml->id() );
QHash< QString, QPair< QString, bool> >::const_iterator emIt = mEmbeddedLayers.find( ml->id() );
if ( emIt == mEmbeddedLayers.constEnd() )
{
ml->writeXML( projectLayersNode, *doc );
}
else //layer defined in an external project file
{
//only save embedded layer if not managed by a legend group
if ( emIt.value().second )
{
QDomElement mapLayerElem = doc->createElement( "maplayer" );
mapLayerElem.setAttribute( "embedded", 1 );
mapLayerElem.setAttribute( "project", writePath( emIt.value().first ) );
mapLayerElem.setAttribute( "id", ml->id() );
projectLayersNode.appendChild( mapLayerElem );
}
}
}
li++;
}
qgisNode.appendChild( projectLayersNode );
// now add the optional extra properties
dump_( imp_->properties_ );
QgsDebugMsg( QString( "there are %1 property scopes" ).arg( static_cast<int>( imp_->properties_.count() ) ) );
if ( !imp_->properties_.isEmpty() ) // only worry about properties if we
// actually have any properties
{
imp_->properties_.writeXML( "properties", qgisNode, *doc );
}
// now wrap it up and ship it to the project file
doc->normalize(); // XXX I'm not entirely sure what this does
//QString xml = doc->toString(4); // write to string with indentation of four characters
// (yes, four is arbitrary)
// const char * xmlString = xml; // debugger probe point
// qDebug( "project file output:\n\n" + xml );
QTextStream projectFileStream( &imp_->file );
//projectFileStream << xml << endl;
doc->save( projectFileStream, 4 ); // save as utf-8
imp_->file.close();
// check if the text stream had no error - if it does
// the user will get a message so they can try to resolve the
// situation e.g. by saving project to a volume with more space
//
if ( projectFileStream.pos() == -1 || imp_->file.error() != QFile::NoError )
{
setError( tr( "Unable to save to file %1. Your project "
"may be corrupted on disk. Try clearing some space on the volume and "
"check file permissions before pressing save again." )
.arg( imp_->file.fileName() ) );
return false;
}
dirty( false ); // reset to pristine state
emit projectSaved();
return true;
} // QgsProject::write
