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https://github.com/qgis/QGIS.git
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improved restoring the legend from project file
git-svn-id: http://svn.osgeo.org/qgis/trunk@4102 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
mhugent
parent
197c29ee21
commit
bfe19f55b8
@ -688,6 +688,7 @@ bool QgsLegend::writeXML( QDomNode & layer_node, QDomDocument & document )
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{
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legendlayernode.setAttribute("open","false");
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}
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legendlayernode.setAttribute("name", item->text(0));
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legendnode.appendChild(legendlayernode);
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break;
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@ -754,35 +755,62 @@ bool QgsLegend::readXML(QDomNode& legendnode)
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{
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do //iterate over legend layers/ legend groups
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{
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//simplified: only legend layers
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QDomElement legendlayerelem = child.toElement();//todo: distinguish between legend layer and legend group
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if(!theItem)
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{
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break;
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}
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QDomElement legendlayerelem = child.toElement();
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if(legendlayerelem.tagName()=="legendgroup")
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{
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group = new QgsLegendGroup(this, legendlayerelem.attribute("name"));
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group = new QgsLegendGroup(this, legendlayerelem.attribute("name"));
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group->setRenameEnabled(0, true);
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open = legendlayerelem.attribute("open");
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if(open == "true")
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{
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group->setOpen(true);
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}
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if(theItem != firstChild())
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{
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if(prevchild)
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{
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group->moveItem(prevchild);
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theItem = group->nextSibling(); //go one hierarchy step down
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child = child.firstChild();
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}
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}
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theItem = group->nextSibling();
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if(!child.firstChild().isNull())
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{
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child = child.firstChild();//go one hierarchy step down
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}
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else
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{
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child = child.nextSibling();
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}
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continue;
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}
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open = legendlayerelem.attribute("open");
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if(child.parentNode().toElement().tagName()=="legendgroup")
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{
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group->insertItem(theItem);
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group->insertItem(theItem);
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QListViewItem* currentChild = group->firstChild();
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if(!currentChild)
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{
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group->insertItem(theItem);//insert the first child in the group
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}
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else //find the last child and insert the new one after it
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{
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while(currentChild->nextSibling() != 0)
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{
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currentChild = currentChild->nextSibling();
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}
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group->insertItem(theItem);
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theItem->moveItem(currentChild);
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}
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}
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if(open == "true")
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{
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theItem->setOpen(true);
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}
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theItem->setText(0, legendlayerelem.attribute("name"));
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//file group
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secondLevelItem = theItem->firstChild();
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@ -813,109 +841,154 @@ bool QgsLegend::readXML(QDomNode& legendnode)
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secondLevelItem->setOpen(true);
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}
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if(!theItem->nextSibling() && theItem->parent()) //go one hierarchy step up
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{
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theItem = theItem->parent();
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if(child.nextSibling().isNull() && !child.parentNode().isNull()) //go one hierarchy step up
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{
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child = child.parentNode();
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}
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}
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if(theItem->nextSibling() == 0)
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{
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theItem = theItem->parent();
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}
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if(!theItem)
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{
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break;
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}
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prevchild = theItem;
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theItem = theItem->nextSibling();
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child=child.nextSibling();
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child = child.nextSibling();
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if(!theItem)
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{
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break; //reached the end
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}
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}
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while(!(child.isNull()));
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}
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placeCheckBoxes();
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return true;
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}
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void QgsLegend::saveToProject()
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{
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int lgroupidx=0;
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int llayeridx=0;
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QString groupstring; //string which have to be prepended if an element is into a group
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int toplayeridx=0;
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int lgroupidx=0;
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int llayeridx=0;
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QString groupstring; //string which have to be prepended if an element is into a group
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QListViewItemIterator it(this);
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while(it.current())
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QListViewItemIterator it(this);
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while(it.current())
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{
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QgsLegendItem *item = dynamic_cast<QgsLegendItem*>(it.current());
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if(item)
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QgsLegendItem *item = dynamic_cast<QgsLegendItem*>(it.current());
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if(item)
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{
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switch(item->type())
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switch(item->type())
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{
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case QgsLegendItem::LEGEND_GROUP:
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++lgroupidx;
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groupstring = "/LegendGroup"+QString::number(lgroupidx);
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QgsProject::instance()->writeEntry("Legend","/LegendGroup"+QString::number(lgroupidx)+"/Name",item->text(0));
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if(item->isOpen())
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{
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QgsProject::instance()->writeEntry("Legend","/LegendGroup"+QString::number(lgroupidx)+"/Open",true);
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}
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else
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{
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QgsProject::instance()->writeEntry("Legend","/LegendGroup"+QString::number(lgroupidx)+"/Open",true);
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}
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break;
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case QgsLegendItem::LEGEND_GROUP:
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++lgroupidx;
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groupstring = "/LegendGroup"+QString::number(lgroupidx);
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QgsProject::instance()->writeEntry("Legend","/LegendGroup"+QString::number(lgroupidx)+"/Name",item->text(0));
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++toplayeridx;
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QgsProject::instance()->writeEntry("Legend","/LegendGroup"+QString::number(lgroupidx)+"/TopLayerIndex",toplayeridx);
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if(item->isOpen())
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{
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QgsProject::instance()->writeEntry("Legend","/LegendGroup"+QString::number(lgroupidx)+"/Open",true);
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}
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else
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{
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QgsProject::instance()->writeEntry("Legend","/LegendGroup"+QString::number(lgroupidx)+"/Open",true);
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}
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break;
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case QgsLegendItem::LEGEND_LAYER:
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++llayeridx;
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if(item->parent()==0)//legend layer is not in a group
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{
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groupstring="";
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}
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/Name",item->text(0));
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if(item->isOpen())
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/Open",true);
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}
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else
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/Open",false);
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}
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break;
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case QgsLegendItem::LEGEND_PROPERTY_GROUP:
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if(item->isOpen())
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendPropertyGroup/Open", true);
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}
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else
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendPropertyGroup/Open", false);
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}
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break;
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case QgsLegendItem::LEGEND_SYMBOL_GROUP:
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if(item->isOpen())
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendSymbolGroup/Open", true);
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}
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else
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendSymbolGroup/Open", false);
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}
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break;
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case QgsLegendItem::LEGEND_LAYER_FILE_GROUP:
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if(item->isOpen())
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendLayerFileGroup/Open", true);
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}
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else
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendLayerFileGroup/Open", false);
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}
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break;
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default: //do nothing for the leaf nodes
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break;
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case QgsLegendItem::LEGEND_LAYER:
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++llayeridx;
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if(item->parent()==0)//legend layer is not in a group
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{
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groupstring="";
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++toplayeridx;
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/TopLayerIndex",toplayeridx);
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}
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else //set TopLayerIndex -1 if a LegendLayer is not a toplevel item
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/TopLayerIndex",-1);
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}
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/Name",item->text(0));
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if(item->isOpen())
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/Open",true);
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}
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else
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/Open",false);
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}
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break;
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case QgsLegendItem::LEGEND_PROPERTY_GROUP:
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if(item->isOpen())
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendPropertyGroup/Open", true);
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}
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else
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendPropertyGroup/Open", false);
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}
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break;
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case QgsLegendItem::LEGEND_SYMBOL_GROUP:
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if(item->isOpen())
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendSymbolGroup/Open", true);
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}
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else
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendSymbolGroup/Open", false);
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}
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break;
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case QgsLegendItem::LEGEND_LAYER_FILE_GROUP:
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if(item->isOpen())
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendLayerFileGroup/Open", true);
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}
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else
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{
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QgsProject::instance()->writeEntry("Legend",groupstring+"/LegendLayer"+QString::number(llayeridx)+"/LegendLayerFileGroup/Open", false);
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}
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break;
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default: //do nothing for the leaf nodes
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break;
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}
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}
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++it;
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++it;
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}
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}
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void QgsLegend::restoreFromProject()
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{
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int legendlayercount = 0;
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int legendgroupcount = 0;
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QStringList legendlayerlist;
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QStringList legendgrouplist;
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bool ok;
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legendlayerlist = QgsProject::instance()->readListEntry("Legend","/LegendLayer"+QString::number(legendlayercount+1), &ok);
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if(ok)
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{
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++legendlayercount;
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for(QStringList::Iterator it = legendlayerlist.begin(); it != legendlayerlist.end(); ++it)
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{
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qWarning(*it);
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}
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}
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legendgrouplist = QgsProject::instance()->readListEntry("Legend","/LegendGroup"+QString::number(legendgroupcount+1), &ok);
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if(ok)
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{
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++legendgroupcount;
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for(QStringList::Iterator it = legendgrouplist.begin(); it != legendgrouplist.end(); ++it)
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{
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qWarning(*it);
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}
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}
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}
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@ -1108,6 +1108,7 @@ bool QgsProject::read()
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if(theMapCanvas)
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{
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QgsLegend* theLegend = theMapCanvas->getLegend();
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//theLegend->restoreFromProject();
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if(theLegend)
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{
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QDomNodeList ll = doc->elementsByTagName("legend");
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@ -1115,6 +1116,7 @@ bool QgsProject::read()
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{
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QDomNode legendnode = ll.item(0);
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theLegend->readXML(legendnode);
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theLegend->restoreFromProject();
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}
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}
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}
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@ -1275,8 +1277,8 @@ bool QgsProject::write()
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QgsLegend* theLegend = theMapCanvas->getLegend();
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if(theLegend)
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{
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theLegend->writeXML(qgisNode, *doc);
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//theLegend->saveToProject();
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theLegend->writeXML(qgisNode, *doc);
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//theLegend->saveToProject();
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}
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}
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