void QgsLegendModel::setLayerSetAndGroups( const QStringList& layerIds, const QList< GroupLayerInfo >& groupInfo )
{
setLayerSet( layerIds );
QStandardItem* currentItem = 0;
QStandardItem* currentGroupItem = 0;
int i = 0;
QList< GroupLayerInfo >::const_iterator infoIt = groupInfo.constBegin();
for ( ; infoIt != groupInfo.constEnd() && i < invisibleRootItem()->rowCount(); )
{
currentItem = invisibleRootItem()->child( i, 0 );
QString infoKey = infoIt->first;
if ( infoKey.isNull() ) //a toplevel layer
{
++i;
}
else //a group
{
currentGroupItem = addGroup( infoKey, i );
++i;
QList<QString> layerList = infoIt->second;
QList<QString>::const_iterator groupLayerIt = layerList.constBegin();
for ( ; currentItem && ( groupLayerIt != layerList.constEnd() ); ++groupLayerIt )
{
//check if current item is contained in this group
QgsComposerLayerItem* layerItem = dynamic_cast<QgsComposerLayerItem*>( currentItem );
if ( !layerItem )
{
return; //should never happen
}
//QString layerID = currentItem->data(Qt::UserRole + 2).toString();
QString layerID = layerItem->layerID();
if ( layerList.contains( layerID ) )
{
takeRow( i );
currentGroupItem->setChild( currentGroupItem->rowCount(), 0, currentItem );
}
else
{
++i;
}
currentItem = invisibleRootItem()->child( i, 0 );
}
}
++infoIt;
}
}
bool ImageCanvas::LoadObject(const QString & session, const QString & cam, const QString & img, const double & ux,
const double & uy) {
if ((current_session == session) && (current_cam == cam) && (current_img == img)) {
CenterOnWorldPosition(ux, uy, 1.0);
return true;
}
UnloadObject();
QFileInfo image_file(db->GetImageLocation(session, cam, img));
if(!image_file.isFile() || !image_file.isReadable())
return false;
image_layer = new QgsRasterLayer(image_file.filePath(),image_file.fileName());
connect(image_layer,SIGNAL(progressUpdate(int)),this,SLOT(ShowProgress(int)));
image_layer->setLayerName("image");
image_provider = image_layer->dataProvider();
if (!image_layer->isValid())
return false;
QgsContrastEnhancement* qgsContrastEnhRed = new QgsContrastEnhancement(QGis::UInt16);
QgsContrastEnhancement* qgsContrastEnhGreen = new QgsContrastEnhancement(QGis::UInt16);
QgsContrastEnhancement* qgsContrastEnhBlue = new QgsContrastEnhancement(QGis::UInt16);
QgsMultiBandColorRenderer* renderer = new QgsMultiBandColorRenderer( image_provider, 1, 2, 3,
qgsContrastEnhRed, qgsContrastEnhGreen, qgsContrastEnhBlue);
image_layer->setRenderer( renderer );
layer_registry->addMapLayer(image_layer);
QList<QgsMapCanvasLayer> layer_set;
layer_set.append(image_layer);
setLayerSet(layer_set);
CenterOnWorldPosition(ux, uy, 1.0);
current_session = session;
current_cam = cam;
current_img = img;
return true;
}
