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qgswmssourceselect.cpp
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qgswmssourceselect.cpp
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/***************************************************************************
qgswmssourceselect.cpp - selector for WMS servers, etc.
-------------------
begin : 3 April 2005
copyright :
original : (C) 2005 by Brendan Morley email : morb at ozemail dot com dot au
wms search : (C) 2009 Mathias Walker <mwa at sourcepole.ch>, Sourcepole AG
wmts/wms-c support : (C) 2010-2012 Juergen E. Fischer < jef at norbit dot de >, norBIT GmbH
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgswmsprovider.h"
#include "qgis.h" // GEO_EPSG_CRS_ID
#include "qgscontexthelp.h"
#include "qgscoordinatereferencesystem.h"
#include "qgsdatasourceuri.h"
#include "qgsgenericprojectionselector.h"
#include "qgslogger.h"
#include "qgsmanageconnectionsdialog.h"
#include "qgsmessageviewer.h"
#include "qgsnewhttpconnection.h"
#include "qgsnumericsortlistviewitem.h"
#include "qgsproject.h"
#include "qgsproviderregistry.h"
#include "qgswmsconnection.h"
#include "qgswmssourceselect.h"
#include "qgswmtsdimensions.h"
#include "qgsnetworkaccessmanager.h"
#include "qgswmscapabilities.h"
#include <QButtonGroup>
#include <QFileDialog>
#include <QRadioButton>
#include <QDomDocument>
#include <QHeaderView>
#include <QImageReader>
#include <QInputDialog>
#include <QMap>
#include <QMessageBox>
#include <QPicture>
#include <QSettings>
#include <QUrl>
#include <QValidator>
#include <QNetworkRequest>
#include <QNetworkReply>
QgsWMSSourceSelect::QgsWMSSourceSelect( QWidget * parent, Qt::WindowFlags fl, bool managerMode, bool embeddedMode )
: QDialog( parent, fl )
, mManagerMode( managerMode )
, mEmbeddedMode( embeddedMode )
, mDefaultCRS( GEO_EPSG_CRS_AUTHID )
, mCurrentTileset( 0 )
{
setupUi( this );
if ( mEmbeddedMode )
{
buttonBox->button( QDialogButtonBox::Close )->hide();
}
mAddButton = new QPushButton( tr( "&Add" ) );
mAddButton->setToolTip( tr( "Add selected layers to map" ) );
mAddButton->setEnabled( false );
mTileWidth->setValidator( new QIntValidator( 0, 9999, this ) );
mTileHeight->setValidator( new QIntValidator( 0, 9999, this ) );
mFeatureCount->setValidator( new QIntValidator( 0, 9999, this ) );
mImageFormatGroup = new QButtonGroup;
if ( !mManagerMode )
{
buttonBox->addButton( mAddButton, QDialogButtonBox::ActionRole );
connect( mAddButton, SIGNAL( clicked() ), this, SLOT( addClicked() ) );
// TODO: do it without QgisApp
//mLayerUpButton->setIcon( QgisApp::getThemeIcon( "/mActionArrowUp.png" ) );
//mLayerDownButton->setIcon( QgisApp::getThemeIcon( "/mActionArrowDown.png" ) );
QHBoxLayout *layout = new QHBoxLayout;
mFormats = QgsWmsProvider::supportedFormats();
// add buttons for available encodings
for ( int i = 0; i < mFormats.size(); i++ )
{
mMimeMap.insert( mFormats[i].format, i );
QRadioButton *btn = new QRadioButton( mFormats[i].label );
btn->setToolTip( mFormats[i].format );
btn->setHidden( true );
mImageFormatGroup->addButton( btn, i );
layout->addWidget( btn );
}
// default to first encoding
mImageFormatGroup->button( 0 )->setChecked( true );
btnGrpImageEncoding->setDisabled( true );
layout->addStretch();
btnGrpImageEncoding->setLayout( layout );
setTabOrder( lstLayers, mImageFormatGroup->button( 0 ) );
//set the current project CRS if available
long currentCRS = QgsProject::instance()->readNumEntry( "SpatialRefSys", "/ProjectCRSID", -1 );
if ( currentCRS != -1 )
{
//convert CRS id to epsg
QgsCoordinateReferenceSystem currentRefSys( currentCRS, QgsCoordinateReferenceSystem::InternalCrsId );
if ( currentRefSys.isValid() )
{
mDefaultCRS = mCRS = currentRefSys.authid();
}
}
// set up the default WMS Coordinate Reference System
labelCoordRefSys->setText( descriptionForAuthId( mCRS ) );
// disable layer order and tilesets until we have some
tabServers->setTabEnabled( tabServers->indexOf( tabLayerOrder ), false );
tabServers->setTabEnabled( tabServers->indexOf( tabTilesets ), false );
}
else
{
tabServers->removeTab( tabServers->indexOf( tabLayerOrder ) );
tabServers->removeTab( tabServers->indexOf( tabTilesets ) );
btnGrpImageEncoding->hide();
tabLayers->layout()->removeWidget( btnGrpImageEncoding );
gbCRS->hide();
tabLayers->layout()->removeWidget( gbCRS );
}
clear();
// set up the WMS connections we already know about
populateConnectionList();
QSettings settings;
QgsDebugMsg( "restoring geometry" );
restoreGeometry( settings.value( "/Windows/WMSSourceSelect/geometry" ).toByteArray() );
}
QgsWMSSourceSelect::~QgsWMSSourceSelect()
{
QSettings settings;
QgsDebugMsg( "saving geometry" );
settings.setValue( "/Windows/WMSSourceSelect/geometry", saveGeometry() );
}
void QgsWMSSourceSelect::populateConnectionList()
{
cmbConnections->clear();
cmbConnections->addItems( QgsWMSConnection::connectionList() );
setConnectionListPosition();
}
void QgsWMSSourceSelect::on_btnNew_clicked()
{
QgsNewHttpConnection *nc = new QgsNewHttpConnection( this );
if ( nc->exec() )
{
populateConnectionList();
emit connectionsChanged();
}
delete nc;
}
void QgsWMSSourceSelect::on_btnEdit_clicked()
{
QgsNewHttpConnection *nc = new QgsNewHttpConnection( this, "/Qgis/connections-wms/", cmbConnections->currentText() );
if ( nc->exec() )
{
populateConnectionList();
emit connectionsChanged();
}
delete nc;
}
void QgsWMSSourceSelect::on_btnDelete_clicked()
{
QString msg = tr( "Are you sure you want to remove the %1 connection and all associated settings?" )
.arg( cmbConnections->currentText() );
QMessageBox::StandardButton result = QMessageBox::information( this, tr( "Confirm Delete" ), msg, QMessageBox::Ok | QMessageBox::Cancel );
if ( result == QMessageBox::Ok )
{
QgsWMSConnection::deleteConnection( cmbConnections->currentText() );
cmbConnections->removeItem( cmbConnections->currentIndex() );
setConnectionListPosition();
emit connectionsChanged();
}
}
void QgsWMSSourceSelect::on_btnSave_clicked()
{
QgsManageConnectionsDialog dlg( this, QgsManageConnectionsDialog::Export, QgsManageConnectionsDialog::WMS );
dlg.exec();
}
void QgsWMSSourceSelect::on_btnLoad_clicked()
{
QString fileName = QFileDialog::getOpenFileName( this, tr( "Load connections" ), QDir::homePath(),
tr( "XML files (*.xml *XML)" ) );
if ( fileName.isEmpty() )
{
return;
}
QgsManageConnectionsDialog dlg( this, QgsManageConnectionsDialog::Import, QgsManageConnectionsDialog::WMS, fileName );
dlg.exec();
populateConnectionList();
emit connectionsChanged();
}
QgsNumericSortTreeWidgetItem *QgsWMSSourceSelect::createItem(
int id,
const QStringList &names,
QMap<int, QgsNumericSortTreeWidgetItem *> &items,
int &layerAndStyleCount,
const QMap<int, int> &layerParents,
const QMap<int, QStringList> &layerParentNames )
{
if ( items.contains( id ) )
return items[id];
QgsNumericSortTreeWidgetItem *item;
if ( layerParents.contains( id ) )
{
int parent = layerParents[ id ];
item = new QgsNumericSortTreeWidgetItem( createItem( parent, layerParentNames[ parent ], items, layerAndStyleCount, layerParents, layerParentNames ) );
}
else
item = new QgsNumericSortTreeWidgetItem( lstLayers );
item->setText( 0, QString::number( ++layerAndStyleCount ) );
item->setText( 1, names[0].simplified() );
item->setText( 2, names[1].simplified() );
item->setText( 3, names[2].simplified() );
item->setToolTip( 3, "<font color=black>" + names[2].simplified() + "</font>" );
items[ id ] = item;
return item;
}
void QgsWMSSourceSelect::clear()
{
lstLayers->clear();
lstTilesets->clearContents();
mCRSs.clear();
Q_FOREACH ( QAbstractButton *b, mImageFormatGroup->buttons() )
{
b->setHidden( true );
}
mFeatureCount->setEnabled( false );
}
bool QgsWMSSourceSelect::populateLayerList( const QgsWmsCapabilities& capabilities )
{
QVector<QgsWmsLayerProperty> layers = capabilities.supportedLayers();
bool first = true;
Q_FOREACH ( const QString& encoding, capabilities.supportedImageEncodings() )
{
int id = mMimeMap.value( encoding, -1 );
if ( id < 0 )
{
QgsDebugMsg( QString( "encoding %1 not supported." ).arg( encoding ) );
continue;
}
mImageFormatGroup->button( id )->setVisible( true );
if ( first )
{
mImageFormatGroup->button( id )->setChecked( true );
first = false;
}
}
btnGrpImageEncoding->setEnabled( true );
QMap<int, QgsNumericSortTreeWidgetItem *> items;
QMap<int, int> layerParents;
QMap<int, QStringList> layerParentNames;
capabilities.layerParents( layerParents, layerParentNames );
lstLayers->setSortingEnabled( true );
int layerAndStyleCount = -1;
for ( QVector<QgsWmsLayerProperty>::iterator layer = layers.begin();
layer != layers.end();
++layer )
{
QgsNumericSortTreeWidgetItem *lItem = createItem( layer->orderId, QStringList() << layer->name << layer->title << layer->abstract, items, layerAndStyleCount, layerParents, layerParentNames );
lItem->setData( 0, Qt::UserRole + 0, layer->name );
lItem->setData( 0, Qt::UserRole + 1, "" );
lItem->setData( 0, Qt::UserRole + 2, layer->crs );
lItem->setData( 0, Qt::UserRole + 3, layer->title.isEmpty() ? layer->name : layer->title );
// Also insert the styles
// Layer Styles
for ( int j = 0; j < layer->style.size(); j++ )
{
QgsDebugMsg( QString( "got style name %1 and title '%2'." ).arg( layer->style[j].name, layer->style[j].title ) );
QgsNumericSortTreeWidgetItem *lItem2 = new QgsNumericSortTreeWidgetItem( lItem );
lItem2->setText( 0, QString::number( ++layerAndStyleCount ) );
lItem2->setText( 1, layer->style[j].name.simplified() );
lItem2->setText( 2, layer->style[j].title.simplified() );
lItem2->setText( 3, layer->style[j].abstract.simplified() );
lItem2->setData( 0, Qt::UserRole + 0, layer->name );
lItem2->setData( 0, Qt::UserRole + 1, layer->style[j].name );
lItem2->setData( 0, Qt::UserRole + 3, layer->style[j].title.isEmpty() ? layer->style[j].name : layer->style[j].title );
}
}
lstLayers->sortByColumn( 0, Qt::AscendingOrder );
mTileLayers = capabilities.supportedTileLayers();
tabServers->setTabEnabled( tabServers->indexOf( tabTilesets ), mTileLayers.size() > 0 );
if ( tabServers->isTabEnabled( tabServers->indexOf( tabTilesets ) ) )
tabServers->setCurrentWidget( tabTilesets );
if ( mTileLayers.size() > 0 )
{
QHash<QString, QgsWmtsTileMatrixSet> tileMatrixSets = capabilities.supportedTileMatrixSets();
int rows = 0;
Q_FOREACH ( const QgsWmtsTileLayer &l, mTileLayers )
{
rows += l.styles.size() * l.setLinks.size() * l.formats.size();
}
lstTilesets->clearContents();
lstTilesets->setRowCount( rows );
lstTilesets->setSortingEnabled( false );
int row = 0;
Q_FOREACH ( const QgsWmtsTileLayer &l, mTileLayers )
{
Q_FOREACH ( const QgsWmtsStyle &style, l.styles )
{
Q_FOREACH ( const QgsWmtsTileMatrixSetLink &setLink, l.setLinks )
{
Q_FOREACH ( const QString& format, l.formats )
{
QTableWidgetItem *item = new QTableWidgetItem( l.identifier );
item->setData( Qt::UserRole + 0, l.identifier );
item->setData( Qt::UserRole + 1, format );
item->setData( Qt::UserRole + 2, style.identifier );
item->setData( Qt::UserRole + 3, setLink.tileMatrixSet );
item->setData( Qt::UserRole + 4, tileMatrixSets[ setLink.tileMatrixSet ].crs );
item->setData( Qt::UserRole + 5, l.title );
lstTilesets->setItem( row, 0, item );
lstTilesets->setItem( row, 1, new QTableWidgetItem( format ) );
QTableWidgetItem *titleItem = new QTableWidgetItem( l.title.isEmpty() ? l.identifier : l.title );
if ( !l.abstract.isEmpty() )
titleItem->setToolTip( "<p>" + l.abstract + "</p>" );
lstTilesets->setItem( row, 2, titleItem );
QTableWidgetItem *styleItem = new QTableWidgetItem( style.title.isEmpty() ? style.identifier : style.title );
if ( !style.abstract.isEmpty() )
titleItem->setToolTip( "<p>" + style.abstract + "</p>" );
lstTilesets->setItem( row, 3, styleItem );
lstTilesets->setItem( row, 4, new QTableWidgetItem( setLink.tileMatrixSet ) );
lstTilesets->setItem( row, 5, new QTableWidgetItem( tileMatrixSets[ setLink.tileMatrixSet ].crs ) );
if ( !mMimeMap.contains( format ) )
{
for ( int i = 0; i < lstTilesets->columnCount(); i++ )
{
QTableWidgetItem *item = lstTilesets->item( row, i );
item->setFlags( item->flags() & ~Qt::ItemIsEnabled );
item->setToolTip( tr( "encoding %1 not supported." ).arg( format ) );
}
}
row++;
}
}
}
}
lstTilesets->resizeColumnsToContents();
lstTilesets->setSortingEnabled( true );
lstTilesets->sortByColumn( 0, Qt::AscendingOrder );
}
else
{
lstTilesets->setRowCount( 0 );
}
// If we got some layers, let the user add them to the map
if ( lstLayers->topLevelItemCount() == 1 )
{
lstLayers->expandItem( lstLayers->topLevelItem( 0 ) );
}
on_lstLayers_itemSelectionChanged();
return true;
}
void QgsWMSSourceSelect::on_btnConnect_clicked()
{
clear();
mConnName = cmbConnections->currentText();
QgsWMSConnection connection( cmbConnections->currentText() );
mUri = connection.uri();
QgsWmsSettings wmsSettings;
if ( !wmsSettings.parseUri( mUri.encodedUri() ) )
{
QMessageBox::warning(
this,
tr( "WMS Provider" ),
tr( "Failed to parse WMS URI" )
);
return;
}
QgsWmsCapabilitiesDownload capDownload( wmsSettings.baseUrl(), wmsSettings.authorization() );
connect( &capDownload, SIGNAL( statusChanged( QString ) ), this, SLOT( showStatusMessage( QString ) ) );
QApplication::setOverrideCursor( Qt::WaitCursor );
bool res = capDownload.downloadCapabilities();
QApplication::restoreOverrideCursor();
if ( !res )
{
QMessageBox::warning(
this,
tr( "WMS Provider" ),
tr( "Failed to download capabilities:\n" ) + capDownload.lastError()
);
return;
}
QgsWmsCapabilities caps;
if ( !caps.parseResponse( capDownload.response(), wmsSettings.parserSettings() ) )
{
QMessageBox msgBox( QMessageBox::Warning, tr( "WMS Provider" ),
tr( "The server you are trying to connect to does not seem to be a WMS server. Please check the URL." ),
QMessageBox::Ok, this );
msgBox.setDetailedText( tr( "Instead of the capabilities string that was expected, the following response has been received:\n\n%1" ).arg( caps.lastError() ) );
msgBox.exec();
return;
}
mFeatureCount->setEnabled( caps.identifyCapabilities() != QgsRasterInterface::NoCapabilities );
populateLayerList( caps );
}
void QgsWMSSourceSelect::addClicked()
{
QStringList layers;
QStringList styles;
QStringList titles;
QString format;
QString crs;
QgsDataSourceURI uri = mUri;
if ( mTileWidth->text().toInt() > 0 && mTileHeight->text().toInt() > 0 )
{
uri.setParam( "maxWidth", mTileWidth->text() );
uri.setParam( "maxHeight", mTileHeight->text() );
}
if ( lstTilesets->selectedItems().isEmpty() )
{
collectSelectedLayers( layers, styles, titles );
crs = mCRS;
format = mFormats[ mImageFormatGroup->checkedId()].format;
}
else
{
QTableWidgetItem *item = lstTilesets->selectedItems().first();
layers = QStringList( item->data( Qt::UserRole + 0 ).toString() );
format = item->data( Qt::UserRole + 1 ).toString();
styles = QStringList( item->data( Qt::UserRole + 2 ).toString() );
crs = item->data( Qt::UserRole + 4 ).toString();
titles = QStringList( item->data( Qt::UserRole + 5 ).toString() );
uri.setParam( "tileMatrixSet", item->data( Qt::UserRole + 3 ).toStringList() );
const QgsWmtsTileLayer *layer = 0;
Q_FOREACH ( const QgsWmtsTileLayer &l, mTileLayers )
{
if ( l.identifier == layers.join( "," ) )
{
layer = &l;
break;
}
}
if ( !layer )
return;
if ( !layer->dimensions.isEmpty() )
{
QgsWmtsDimensions *dlg = new QgsWmtsDimensions( *layer, this );
if ( dlg->exec() != QDialog::Accepted )
{
delete dlg;
return;
}
QHash<QString, QString> dims;
dlg->selectedDimensions( dims );
QString dimString;
QString delim;
for ( QHash<QString, QString>::const_iterator it = dims.constBegin();
it != dims.constEnd();
++it )
{
dimString += delim + it.key() + '=' + it.value();
delim = ';';
}
delete dlg;
uri.setParam( "tileDimensions", dimString );
}
}
uri.setParam( "layers", layers );
uri.setParam( "styles", styles );
uri.setParam( "format", format );
uri.setParam( "crs", crs );
QgsDebugMsg( QString( "crs=%2 " ).arg( crs ) );
if ( mFeatureCount->text().toInt() > 0 )
{
uri.setParam( "featureCount", mFeatureCount->text() );
}
uri.setParam( "contextualWMSLegend", mContextualLegendCheckbox->isChecked() ? "1" : "0" );
emit addRasterLayer( uri.encodedUri(),
leLayerName->text().isEmpty() ? titles.join( "/" ) : leLayerName->text(),
"wms" );
}
void QgsWMSSourceSelect::enableLayersForCrs( QTreeWidgetItem *item )
{
QString layerName = item->data( 0, Qt::UserRole + 0 ).toString();
QString styleName = item->data( 0, Qt::UserRole + 1 ).toString();
if ( !layerName.isEmpty() && styleName.isEmpty() )
{
// layer
bool disable = !item->data( 0, Qt::UserRole + 2 ).toStringList().contains( mCRS, Qt::CaseInsensitive );
item->setDisabled( disable );
// propagate to styles
for ( int i = 0; i < item->childCount(); i++ )
{
item->child( i )->setDisabled( disable );
}
}
else
{
// recurse to child layers
for ( int i = 0; i < item->childCount(); i++ )
{
enableLayersForCrs( item->child( i ) );
}
}
}
void QgsWMSSourceSelect::on_btnChangeSpatialRefSys_clicked()
{
QStringList layers;
Q_FOREACH ( QTreeWidgetItem *item, lstLayers->selectedItems() )
{
QString layer = item->data( 0, Qt::UserRole + 0 ).toString();
if ( !layer.isEmpty() )
layers << layer;
}
QgsGenericProjectionSelector * mySelector = new QgsGenericProjectionSelector( this );
mySelector->setMessage();
mySelector->setOgcWmsCrsFilter( mCRSs );
QString myDefaultCrs = QgsProject::instance()->readEntry( "SpatialRefSys", "/ProjectCrs", GEO_EPSG_CRS_AUTHID );
QgsCoordinateReferenceSystem defaultCRS;
if ( defaultCRS.createFromOgcWmsCrs( myDefaultCrs ) )
{
mySelector->setSelectedCrsId( defaultCRS.srsid() );
}
if ( !mySelector->exec() )
return;
mCRS = mySelector->selectedAuthId();
delete mySelector;
labelCoordRefSys->setText( descriptionForAuthId( mCRS ) );
for ( int i = 0; i < lstLayers->topLevelItemCount(); i++ )
{
enableLayersForCrs( lstLayers->topLevelItem( i ) );
}
updateButtons();
// update the display of this widget
update();
}
void QgsWMSSourceSelect::applySelectionConstraints( QTreeWidgetItem *item )
{
if ( item->childCount() == 0 )
{
return;
}
int styles = 0;
for ( int i = 0; i < item->childCount(); i++ )
{
QTreeWidgetItem *child = item->child( i );
QString style = child->data( 0, Qt::UserRole + 1 ).toString();
if ( !style.isEmpty() )
styles++;
}
if ( styles > 0 )
{
if ( styles < item->childCount() )
{
return;
}
QTreeWidgetItem *style = 0;
QTreeWidgetItem *firstNewStyle = 0;
for ( int i = 0; i < item->childCount(); i++ )
{
QTreeWidgetItem *child = item->child( i );
if ( child->isSelected() )
{
if ( !firstNewStyle && !mCurrentSelection.contains( child ) )
firstNewStyle = child;
if ( !style )
style = child;
child->setSelected( false );
}
}
if ( firstNewStyle || style )
{
// individual style selected => unselect layer and all parent groups
QTreeWidgetItem *parent = item;
while ( parent )
{
parent->setSelected( false );
parent = parent->parent();
}
if ( firstNewStyle )
firstNewStyle->setSelected( true );
else if ( style )
style->setSelected( true );
}
}
else
{
// no styles => layer or layer group =>
// process child layers and style selection first
// then
// if some child layers are selected, deselect the group and all parents
// otherwise keep the selection state of the group
int n = 0;
for ( int i = 0; i < item->childCount(); i++ )
{
QTreeWidgetItem *child = item->child( i );
applySelectionConstraints( child );
if ( child->isSelected() )
n++;
}
if ( n > 0 )
{
if ( item->isSelected() )
{
for ( int i = 0; i < n; i++ )
{
QTreeWidgetItem *child = item->child( i );
child->setSelected( false );
}
item->setExpanded( false );
}
else
{
for ( QTreeWidgetItem *parent = item->parent(); parent; parent = parent->parent() )
{
parent->setSelected( false );
}
}
}
}
}
void QgsWMSSourceSelect::collectNamedLayers( QTreeWidgetItem *item, QStringList &layers, QStringList &styles, QStringList &titles )
{
QString layerName = item->data( 0, Qt::UserRole + 0 ).toString();
QString styleName = item->data( 0, Qt::UserRole + 1 ).toString();
QString titleName = item->data( 0, Qt::UserRole + 3 ).toString();
if ( layerName.isEmpty() )
{
// layer group
for ( int i = 0; i < item->childCount(); i++ )
collectNamedLayers( item->child( i ), layers, styles, titles );
}
else if ( styleName.isEmpty() )
{
// named layers
layers << layerName;
styles << "";
titles << titleName;
if ( mCRSs.isEmpty() )
mCRSs = item->data( 0, Qt::UserRole + 2 ).toStringList().toSet();
else
mCRSs.intersect( item->data( 0, Qt::UserRole + 2 ).toStringList().toSet() );
}
}
/**
* retrieve selected layers
*/
void QgsWMSSourceSelect::on_lstLayers_itemSelectionChanged()
{
lstLayers->blockSignals( true );
for ( int i = 0; i < lstLayers->topLevelItemCount(); i++ )
{
applySelectionConstraints( lstLayers->topLevelItem( i ) );
}
mCurrentSelection = lstLayers->selectedItems();
lstLayers->blockSignals( false );
// selected layers with styles
QStringList layers;
QStringList styles;
QStringList titles;
mCRSs.clear();
// determine selected layers and styles and set of crses that are available for all layers
Q_FOREACH ( QTreeWidgetItem *item, lstLayers->selectedItems() )
{
QString layerName = item->data( 0, Qt::UserRole + 0 ).toString();
QString styleName = item->data( 0, Qt::UserRole + 1 ).toString();
QString titleName = item->data( 0, Qt::UserRole + 3 ).toString();
if ( layerName.isEmpty() )
{
// layers groups: collect named layers of group and add using the default style
collectNamedLayers( item, layers, styles, titles );
}
else if ( styleName.isEmpty() )
{
// named layer: add using default style
layers << layerName;
styles << "";
titles << titleName;
if ( mCRSs.isEmpty() )
mCRSs = item->data( 0, Qt::UserRole + 2 ).toStringList().toSet();
else
mCRSs.intersect( item->data( 0, Qt::UserRole + 2 ).toStringList().toSet() );
}
else
{
// style: add named layer with selected style
layers << layerName;
styles << styleName;
titles << titleName;
if ( mCRSs.isEmpty() )
mCRSs = item->parent()->data( 0, Qt::UserRole + 2 ).toStringList().toSet();
else
mCRSs.intersect( item->parent()->data( 0, Qt::UserRole + 2 ).toStringList().toSet() );
}
}
gbCRS->setTitle( tr( "Options (%n coordinate reference systems available)", "crs count", mCRSs.count() ) );
btnChangeSpatialRefSys->setDisabled( mCRSs.isEmpty() );
if ( !layers.isEmpty() && !mCRSs.isEmpty() )
{
// check whether current CRS is supported
// if not, use one of the available CRS
QString defaultCRS;
QSet<QString>::const_iterator it = mCRSs.begin();
for ( ; it != mCRSs.end(); ++it )
{
if ( it->compare( mCRS, Qt::CaseInsensitive ) == 0 )
break;
// save first CRS in case the current CRS is not available
if ( it == mCRSs.begin() )
defaultCRS = *it;
// prefer value of DEFAULT_GEO_EPSG_CRS_ID if available
if ( *it == mDefaultCRS )
defaultCRS = *it;
}
if ( it == mCRSs.end() )
{
// not found
mCRS = defaultCRS;
labelCoordRefSys->setText( descriptionForAuthId( mCRS ) );
}
}
else if ( layers.isEmpty() || mCRSs.isEmpty() )
{
mCRS = "";
labelCoordRefSys->setText( "" );
}
updateLayerOrderTab( layers, styles, titles );
updateButtons();
}
void QgsWMSSourceSelect::on_lstTilesets_itemClicked( QTableWidgetItem *item )
{
Q_UNUSED( item );
QTableWidgetItem *rowItem = lstTilesets->item( lstTilesets->currentRow(), 0 );
bool wasSelected = mCurrentTileset == rowItem;
lstTilesets->blockSignals( true );
lstTilesets->clearSelection();
if ( !wasSelected )
{
QgsDebugMsg( QString( "selecting current row %1" ).arg( lstTilesets->currentRow() ) );
lstTilesets->selectRow( lstTilesets->currentRow() );
mCurrentTileset = rowItem;
}
else
{
mCurrentTileset = 0;
}
lstTilesets->blockSignals( false );
updateButtons();
}
void QgsWMSSourceSelect::updateButtons()
{
if ( !lstTilesets->selectedItems().isEmpty() )
{
// tileset selected => disable layer selection and layer order
lstLayers->setEnabled( false );
tabServers->setTabEnabled( tabServers->indexOf( tabLayerOrder ), false );
tabServers->setTabEnabled( tabServers->indexOf( tabTilesets ), lstTilesets->rowCount() > 0 );
btnGrpImageEncoding->setEnabled( false );
}
else
{
// no tileset selected =>
// disable layerorder, when no layers selected
// disable tilesets, when layer are selected or no tilesets available
lstLayers->setEnabled( true );
tabServers->setTabEnabled( tabServers->indexOf( tabLayerOrder ), mLayerOrderTreeWidget->topLevelItemCount() > 0 );
tabServers->setTabEnabled( tabServers->indexOf( tabTilesets ), mLayerOrderTreeWidget->topLevelItemCount() == 0 && lstTilesets->rowCount() > 0 );
btnGrpImageEncoding->setEnabled( true );
}
if ( lstTilesets->selectedItems().isEmpty() && mLayerOrderTreeWidget->topLevelItemCount() == 0 )
{
if ( lstTilesets->rowCount() == 0 )
labelStatus->setText( tr( "Select layer(s)" ) );
else
labelStatus->setText( tr( "Select layer(s) or a tileset" ) );
mAddButton->setEnabled( false );
}
else if ( !lstTilesets->selectedItems().isEmpty() && mLayerOrderTreeWidget->topLevelItemCount() > 0 )
{
labelStatus->setText( tr( "Select either layer(s) or a tileset" ) );
mAddButton->setEnabled( false );
}
else
{
gbCRS->setTitle( tr( "Coordinate Reference System (%n available)", "crs count", mCRSs.count() ) );
btnChangeSpatialRefSys->setEnabled( !mCRSs.isEmpty() );
if ( lstTilesets->selectedItems().isEmpty() )
{
if ( mCRSs.isEmpty() )
{
labelStatus->setText( tr( "No common CRS for selected layers." ) );
mAddButton->setEnabled( false );
}
else if ( mCRS.isEmpty() )
{
labelStatus->setText( tr( "No CRS selected" ) );
mAddButton->setEnabled( false );
}
else if ( mImageFormatGroup->checkedId() == -1 )
{
labelStatus->setText( tr( "No image encoding selected" ) );
mAddButton->setEnabled( false );
}
else
{
labelStatus->setText( tr( "%n Layer(s) selected", "selected layer count", mLayerOrderTreeWidget->topLevelItemCount() ) );
mAddButton->setEnabled( true );
}
}
else
{
labelStatus->setText( tr( "Tileset selected" ) );
mAddButton->setEnabled( true );
}
}
if ( leLayerName->text().isEmpty() || leLayerName->text() == mLastLayerName )
{
if ( mAddButton->isEnabled() )
{
if ( !lstTilesets->selectedItems().isEmpty() )
{
QTableWidgetItem *item = lstTilesets->selectedItems().first();
mLastLayerName = item->data( Qt::UserRole + 5 ).toString();
if ( mLastLayerName.isEmpty() )
mLastLayerName = item->data( Qt::UserRole + 0 ).toString();
leLayerName->setText( mLastLayerName );
}
else
{
QStringList layers, styles, titles;
collectSelectedLayers( layers, styles, titles );
mLastLayerName = titles.join( "/" );
leLayerName->setText( mLastLayerName );
}
}
else
{
mLastLayerName = "";
leLayerName->setText( mLastLayerName );
}
}
}
QString QgsWMSSourceSelect::connName()
{
return mConnName;
}
void QgsWMSSourceSelect::collectSelectedLayers( QStringList &layers, QStringList &styles, QStringList &titles )
{
//go through list in layer order tab
QStringList selectedLayerList;
for ( int i = mLayerOrderTreeWidget->topLevelItemCount() - 1; i >= 0; --i )
{
layers << mLayerOrderTreeWidget->topLevelItem( i )->text( 0 );
styles << mLayerOrderTreeWidget->topLevelItem( i )->text( 1 );
titles << mLayerOrderTreeWidget->topLevelItem( i )->text( 2 );
}
}