QgsLayout::~QgsLayout()
{
// no need for undo commands when we're destroying the layout
mUndoStack->blockCommands( true );
deleteAndRemoveMultiFrames();
// make sure that all layout items are removed before
// this class is deconstructed - to avoid segfaults
// when layout items access in destructor layout that isn't valid anymore
// since deletion of some item types (e.g. groups) trigger deletion
// of other items, we have to do this careful, one at a time...
QList<QGraphicsItem *> itemList = items();
bool deleted = true;
while ( deleted )
{
deleted = false;
for ( QGraphicsItem *item : qgis::as_const( itemList ) )
{
if ( dynamic_cast< QgsLayoutItem * >( item ) && !dynamic_cast< QgsLayoutItemPage *>( item ) )
{
delete item;
deleted = true;
break;
}
}
itemList = items();
}
mItemsModel.reset(); // manually delete, so we can control order of destruction
}
QgsComposition::~QgsComposition()
{
removePaperItems();
deleteAndRemoveMultiFrames();
// make sure that all composer items are removed before
// this class is deconstructed - to avoid segfaults
// when composer items access in destructor composition that isn't valid anymore
clear();
delete mActiveItemCommand;
delete mActiveMultiFrameCommand;
}
void QgsLayout::clear()
{
deleteAndRemoveMultiFrames();
//delete all non paper items
const QList<QGraphicsItem *> itemList = items();
for ( QGraphicsItem *item : itemList )
{
QgsLayoutItem *cItem = dynamic_cast<QgsLayoutItem *>( item );
QgsLayoutItemPage *pItem = dynamic_cast<QgsLayoutItemPage *>( item );
if ( cItem && !pItem )
{
removeLayoutItemPrivate( cItem );
}
}
mItemsModel->clear();
mPageCollection->clear();
mUndoStack->stack()->clear();
}
bool QgsComposition::loadFromTemplate( const QDomDocument& doc, QMap<QString, QString>* substitutionMap, bool addUndoCommands )
{
deleteAndRemoveMultiFrames();
//delete all items and emit itemRemoved signal
QList<QGraphicsItem *> itemList = items();
QList<QGraphicsItem *>::iterator itemIter = itemList.begin();
for ( ; itemIter != itemList.end(); ++itemIter )
{
QgsComposerItem* cItem = dynamic_cast<QgsComposerItem*>( *itemIter );
if ( cItem )
{
removeItem( cItem );
emit itemRemoved( cItem );
delete cItem;
}
}
mItemZList.clear();
mPages.clear();
mUndoStack.clear();
QDomDocument importDoc;
if ( substitutionMap )
{
QString xmlString = doc.toString();
QMap<QString, QString>::const_iterator sIt = substitutionMap->constBegin();
for ( ; sIt != substitutionMap->constEnd(); ++sIt )
{
xmlString = xmlString.replace( "[" + sIt.key() + "]", encodeStringForXML( sIt.value() ) );
}
QString errorMsg;
int errorLine, errorColumn;
if ( !importDoc.setContent( xmlString, &errorMsg, &errorLine, &errorColumn ) )
{
return false;
}
}
else
{
importDoc = doc;
}
//read general settings
QDomElement compositionElem = importDoc.documentElement().firstChildElement( "Composition" );
if ( compositionElem.isNull() )
{
return false;
}
bool ok = readXML( compositionElem, importDoc );
if ( !ok )
{
return false;
}
//addItemsFromXML
addItemsFromXML( importDoc.documentElement(), importDoc, 0, addUndoCommands, 0 );
// read atlas parameters
QDomElement atlasElem = importDoc.documentElement().firstChildElement( "Atlas" );
atlasComposition().readXML( atlasElem, importDoc );
return true;
}
