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adapted QgsLegend::readXML and QgsLegend::writeXML to new legend stru… 
…cture

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@4799 c8812cc2-4d05-0410-92ff-de0c093fc19c
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mhugent committed Feb 4, 2006
1 parent b784fe1 commit 8254bf7
Showing 1 changed file with 7 additions and 247 deletions.
254 changes: 7 additions & 247 deletions src/legend/qgslegend.cpp
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Expand Up @@ -798,7 +798,6 @@ bool QgsLegend::writeXML( QDomNode & layer_node, QDomDocument & document )

bool QgsLegend::readXML(QDomNode& legendnode)
{
#if 0
QDomElement childelem;
QDomNode child;
QgsLegendGroup* lastGroup = 0; //pointer to the last inserted group
Expand Down Expand Up @@ -885,6 +884,12 @@ bool QgsLegend::readXML(QDomNode& legendnode)
}
blockSignals(false);

theMapLayer->setLegend(this);
if(child.nextSibling().isNull())
{
theMapLayer->refreshLegend();
}

//set the layer type icon if this legendlayerfile is the last in the file group
if(child.nextSibling().isNull())
{
Expand All @@ -896,24 +901,9 @@ bool QgsLegend::readXML(QDomNode& legendnode)
{
QgsLegendLayerFileGroup* theFileGroup = new QgsLegendLayerFileGroup(lastLayer, "Files");
childelem.attribute("open") == "true" ? expandItem(theFileGroup) : collapseItem(theFileGroup);
childelem.attribute("hidden") == "true" ? setItemHidden(theFileGroup, true) : setItemHidden(theFileGroup, false);
lastLayerFileGroup = theFileGroup;
}
else if(childelem.tagName() == "symbolgroup")
{
QgsLegendSymbologyGroup* theSymbologyGroup = new QgsLegendSymbologyGroup(lastLayer, "Symbology");
childelem.attribute("open") == "true" ? expandItem(theSymbologyGroup) : collapseItem(theSymbologyGroup);
//set symbology parent for all layers
std::list<QgsMapLayer*> layerList = lastLayer->mapLayers();
for(std::list<QgsMapLayer*>::iterator iter = layerList.begin(); iter != layerList.end(); ++iter)
{
(*iter)->setLegendSymbologyGroupParent(theSymbologyGroup);
}
//render the legend
if(lastLayer->firstMapLayer())
{
lastLayer->firstMapLayer()->refreshLegend();
}
}
else if(childelem.tagName() == "propertygroup")
{
QgsLegendPropertyGroup* thePropertyGroup = new QgsLegendPropertyGroup(lastLayer, "Properties");
Expand All @@ -924,239 +914,9 @@ bool QgsLegend::readXML(QDomNode& legendnode)
}
while(!(child.isNull()));
}
#endif
return true;
}

#if 0
bool QgsLegend::readXML(QDomNode& legendnode)
{
QString open;
QgsLegendItem* theItem = dynamic_cast<QgsLegendItem*>(topLevelItem(0)); //first level hierarchy items
QgsLegendItem* prevchild = 0; //store last value of theItem because of legend group
QgsLegendItem* secondLevelItem = 0; //second level item
QgsLegendGroup* group = 0; //pointer to the last inserted legend group

QDomNode child = legendnode.firstChild();
if(!child.isNull())
{
do //iterate over legend layers/ legend groups
{
if(!theItem)
{
break;
}

QDomElement legendlayerelem = child.toElement();

if(legendlayerelem.tagName()=="legendgroup")
{
group = new QgsLegendGroup(legendlayerelem.attribute("name"));
insertTopLevelItem(0, group);

open = legendlayerelem.attribute("open");
if(open == "true")
{
setItemExpanded(group, true); //expand or collapse the item
}
else
{
setItemExpanded(group, false);
}

if(prevchild)
{
moveItem(group, prevchild);
}
theItem = group->nextSibling();
if(!child.firstChild().isNull())
{
child = child.firstChild();//go one hierarchy step down
}
else
{
child = child.nextSibling();
}
continue;
}

open = legendlayerelem.attribute("open");
if(child.parentNode().toElement().tagName()=="legendgroup")
{
removeItem(theItem);
group->insertChild(0, theItem);
QgsLegendItem* currentChild = group->firstChild();
if(!currentChild)
{
removeItem(theItem);
group->insertChild(0, theItem);//insert the first child in the group
}
else //find the last child and insert the new one after it
{
removeItem(theItem);
group->addChild(theItem);
}
}
if(open == "true")
{
setItemExpanded(theItem, true);
}
else
{
setItemExpanded(theItem, false);
}
theItem->setText(0, legendlayerelem.attribute("name"));

//file group
secondLevelItem = theItem->firstChild();
QDomNode filegroupnode = child.firstChild();
QDomElement filegroupelem = filegroupnode.toElement();

open = filegroupelem.attribute("open");
if(open == "true")
{
setItemExpanded(secondLevelItem, true);
}
else
{
setItemExpanded(secondLevelItem, false);
}

QDomNode layerfilenode = filegroupnode.firstChild();
QDomElement layerfileelem = layerfilenode.toElement();

//remove the existing legendlayerfile and insert the one(s) according to the entries in the XML file
if(secondLevelItem->child(0))
{
QgsLegendLayerFile* llfdelete = dynamic_cast<QgsLegendLayerFile*>(secondLevelItem->child(0));
if(llfdelete)
{
removeItem(llfdelete);
mStateOfCheckBoxes.erase(llfdelete);
}
}

//if there are several legend layer files in this group, create the additional items
std::map<QString,QgsMapLayer*> layers = QgsMapLayerRegistry::instance()->mapLayers();

//find out the check state of the QgsLegendLayer in the while(true) loop below
Qt::CheckState legendLayerCheckState;
std::map<QString,QgsMapLayer*>::iterator it = layers.find(layerfileelem.attribute("layerid"));
if(it != layers.end())
{
QgsMapLayer* newlayer = it->second;
if(newlayer->visible())
{
legendLayerCheckState = Qt::Checked;
}
else
{
legendLayerCheckState = Qt::Unchecked;
}
}

blockSignals(true);
while(true)
{
if(layerfilenode.isNull())
{
break;
}

std::map<QString,QgsMapLayer*>::iterator it = layers.find(layerfileelem.attribute("layerid"));
if(it != layers.end())
{
QgsMapLayer* newlayer = it->second;
QgsLegendLayerFile* newfile = new QgsLegendLayerFile(QgsLegendLayerFile::nameFromLayer(newlayer), newlayer);
if(newlayer->visible())
{
if(legendLayerCheckState == Qt::Unchecked)
{
legendLayerCheckState = Qt::PartiallyChecked;
}
newfile->setCheckState(0, Qt::Checked);
mStateOfCheckBoxes.insert(std::make_pair(newfile, Qt::Checked));
}
else
{
if(legendLayerCheckState == Qt::Checked)
{
legendLayerCheckState = Qt::PartiallyChecked;
}
newfile->setCheckState(0, Qt::Unchecked);
mStateOfCheckBoxes.insert(std::make_pair(newfile, Qt::Unchecked));
}
newlayer->setLegendLayerFile(newfile);
newlayer->setLegendSymbologyGroupParent(dynamic_cast<QgsLegendSymbologyGroup*>(secondLevelItem->nextSibling()));
newlayer->initContextMenu(mApp);

//move newfile as the last child of the legendlayerfilegroup
secondLevelItem->addChild(newfile);
}
layerfilenode = layerfilenode.nextSibling();
layerfileelem = layerfilenode.toElement();
}
secondLevelItem->parent()->setCheckState(0, legendLayerCheckState);
mStateOfCheckBoxes[secondLevelItem->parent()] = legendLayerCheckState;
blockSignals(false);

//symbology group
secondLevelItem = secondLevelItem->nextSibling();
QDomNode symbologygroupnode = filegroupnode.nextSibling();
QDomElement symbologygroupelem = symbologygroupnode.toElement();

open = symbologygroupelem.attribute("open");
if(open == "true")
{
setItemExpanded(secondLevelItem, true);//expand or collapse the item
}
else
{
setItemExpanded(secondLevelItem, false);
}

//property group
secondLevelItem = secondLevelItem->nextSibling();
QDomNode propertygroupnode = symbologygroupnode.nextSibling();
QDomElement propertygroupelem = propertygroupnode.toElement();
open = propertygroupelem.attribute("open");
if(open == "true")
{
setItemExpanded(secondLevelItem, true);
}
else
{
setItemExpanded(secondLevelItem, false);
}

if(child.nextSibling().isNull() && !child.parentNode().isNull()) //go one hierarchy step up
{
child = child.parentNode();
}
if(theItem->nextSibling() == 0)
{
theItem = dynamic_cast<QgsLegendItem*>(theItem->parent());
}

if(!theItem)
{
break;
}

prevchild = theItem;
theItem = theItem->nextSibling();
child = child.nextSibling();
if(!theItem)
{
break; //reached the end
}
}
while(!(child.isNull()));
}
return true;
}
#endif //0

void QgsLegend::storeInitialPosition(QTreeWidgetItem* li)
{
if(li == firstItem()) //the item is the first item in the list view
Expand Down

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