QGIS API Documentation 3.27.0-Master (9c08adf5ef)
qgsmaplayer.cpp
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1/***************************************************************************
2 qgsmaplayer.cpp - description
3 -------------------
4 begin : Fri Jun 28 2002
5 copyright : (C) 2002 by Gary E.Sherman
6 email : sherman at mrcc.com
7***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17
18
19#include "qgssqliteutils.h"
22#include "qgsapplication.h"
24#include "qgsdatasourceuri.h"
25#include "qgsfileutils.h"
26#include "qgslogger.h"
27#include "qgsauthmanager.h"
28#include "qgsmaplayer.h"
29#include "qgsmaplayerlegend.h"
31#include "qgsmeshlayer.h"
32#include "qgspathresolver.h"
34#include "qgsproject.h"
35#include "qgsproviderregistry.h"
36#include "qgsrasterlayer.h"
37#include "qgsreadwritecontext.h"
38#include "qgsrectangle.h"
39#include "qgsvectorlayer.h"
41#include "qgsxmlutils.h"
42#include "qgsstringutils.h"
43#include "qgsmessagelog.h"
46#include "qgsprovidermetadata.h"
47#include "qgslayernotesutils.h"
48#include "qgsdatums.h"
49#include "qgsprojoperation.h"
50
51#include <QDir>
52#include <QDomDocument>
53#include <QDomElement>
54#include <QDomImplementation>
55#include <QDomNode>
56#include <QFile>
57#include <QFileInfo>
58#include <QLocale>
59#include <QTextStream>
60#include <QUrl>
61#include <QTimer>
62#include <QStandardPaths>
63#include <QUuid>
64#include <QRegularExpression>
65
66#include <sqlite3.h>
67
69{
70 switch ( type )
71 {
72 case Metadata:
73 return QStringLiteral( ".qmd" );
74
75 case Style:
76 return QStringLiteral( ".qml" );
77 }
78 return QString();
79}
80
82 const QString &lyrname,
83 const QString &source )
84 : mDataSource( source )
85 , mLayerName( lyrname )
86 , mLayerType( type )
87 , mServerProperties( std::make_unique<QgsMapLayerServerProperties>( this ) )
88 , mUndoStack( new QUndoStack( this ) )
89 , mUndoStackStyles( new QUndoStack( this ) )
90 , mStyleManager( new QgsMapLayerStyleManager( this ) )
91 , mRefreshTimer( new QTimer( this ) )
92{
93 mID = generateId( lyrname );
96 connect( mRefreshTimer, &QTimer::timeout, this, [ = ] { triggerRepaint( true ); } );
97}
98
100{
101 if ( project() && project()->pathResolver().writePath( mDataSource ).startsWith( "attachment:" ) )
102 {
104 }
105
106 delete m3DRenderer;
107 delete mLegend;
108 delete mStyleManager;
109}
110
111void QgsMapLayer::clone( QgsMapLayer *layer ) const
112{
113 layer->setBlendMode( blendMode() );
114
115 const auto constStyles = styleManager()->styles();
116 for ( const QString &s : constStyles )
117 {
118 layer->styleManager()->addStyle( s, styleManager()->style( s ) );
119 }
120
121 layer->setName( name() );
122 layer->setShortName( shortName() );
123 layer->setExtent( extent() );
124 layer->setMaximumScale( maximumScale() );
125 layer->setMinimumScale( minimumScale() );
127 layer->setTitle( title() );
128 layer->setAbstract( abstract() );
129 layer->setKeywordList( keywordList() );
130 layer->setDataUrl( dataUrl() );
132 layer->setAttribution( attribution() );
134 layer->setLegendUrl( legendUrl() );
136 layer->setDependencies( dependencies() );
138 layer->setCrs( crs() );
139 layer->setCustomProperties( mCustomProperties );
140 layer->setOpacity( mLayerOpacity );
141 layer->setMetadata( mMetadata );
142 layer->serverProperties()->copyTo( mServerProperties.get() );
143}
144
146{
147 return mLayerType;
148}
149
150QgsMapLayer::LayerFlags QgsMapLayer::flags() const
151{
152 return mFlags;
153}
154
155void QgsMapLayer::setFlags( QgsMapLayer::LayerFlags flags )
156{
157 if ( flags == mFlags )
158 return;
159
160 mFlags = flags;
161 emit flagsChanged();
162}
163
164Qgis::MapLayerProperties QgsMapLayer::properties() const
165{
166 return Qgis::MapLayerProperties();
167}
168
169QString QgsMapLayer::id() const
170{
171 return mID;
172}
173
174void QgsMapLayer::setName( const QString &name )
175{
176 if ( name == mLayerName )
177 return;
178
180
181 emit nameChanged();
182}
183
184QString QgsMapLayer::name() const
185{
186 QgsDebugMsgLevel( "returning name '" + mLayerName + '\'', 4 );
187 return mLayerName;
188}
189
191{
192 return nullptr;
193}
194
196{
197 return nullptr;
198}
199
201{
202 return mShortName;
203}
204
205void QgsMapLayer::setMetadataUrl( const QString &metaUrl )
206{
207 QList<QgsMapLayerServerProperties::MetadataUrl> urls = serverProperties()->metadataUrls();
208 if ( urls.isEmpty() )
209 {
210 const QgsMapLayerServerProperties::MetadataUrl newItem = QgsMapLayerServerProperties::MetadataUrl( metaUrl, QLatin1String(), QLatin1String() );
211 urls.prepend( newItem );
212 }
213 else
214 {
215 const QgsMapLayerServerProperties::MetadataUrl old = urls.takeFirst();
216 const QgsMapLayerServerProperties::MetadataUrl newItem( metaUrl, old.type, old.format );
217 urls.prepend( newItem );
218 }
220}
221
223{
224 if ( mServerProperties->metadataUrls().isEmpty() )
225 {
226 return QLatin1String();
227 }
228 else
229 {
230 return mServerProperties->metadataUrls().first().url;
231 }
232}
233
234void QgsMapLayer::setMetadataUrlType( const QString &metaUrlType )
235{
236 QList<QgsMapLayerServerProperties::MetadataUrl> urls = mServerProperties->metadataUrls();
237 if ( urls.isEmpty() )
238 {
239 const QgsMapLayerServerProperties::MetadataUrl newItem( QLatin1String(), metaUrlType, QLatin1String() );
240 urls.prepend( newItem );
241 }
242 else
243 {
244 const QgsMapLayerServerProperties::MetadataUrl old = urls.takeFirst();
245 const QgsMapLayerServerProperties::MetadataUrl newItem( old.url, metaUrlType, old.format );
246 urls.prepend( newItem );
247 }
248 mServerProperties->setMetadataUrls( urls );
249}
250
252{
253 if ( mServerProperties->metadataUrls().isEmpty() )
254 {
255 return QLatin1String();
256 }
257 else
258 {
259 return mServerProperties->metadataUrls().first().type;
260 }
261}
262
263void QgsMapLayer::setMetadataUrlFormat( const QString &metaUrlFormat )
264{
265 QList<QgsMapLayerServerProperties::MetadataUrl> urls = mServerProperties->metadataUrls();
266 if ( urls.isEmpty() )
267 {
268 const QgsMapLayerServerProperties::MetadataUrl newItem( QLatin1String(), QLatin1String(), metaUrlFormat );
269 urls.prepend( newItem );
270 }
271 else
272 {
273 const QgsMapLayerServerProperties::MetadataUrl old = urls.takeFirst( );
274 const QgsMapLayerServerProperties::MetadataUrl newItem( old.url, old.type, metaUrlFormat );
275 urls.prepend( newItem );
276 }
277 mServerProperties->setMetadataUrls( urls );
278}
279
281{
282 if ( mServerProperties->metadataUrls().isEmpty() )
283 {
284 return QString();
285 }
286 else
287 {
288 return mServerProperties->metadataUrls().first().format;
289 }
290}
291
293{
294 // Redo this every time we're asked for it, as we don't know if
295 // dataSource has changed.
296 QString safeName = QgsDataSourceUri::removePassword( mDataSource );
297 return safeName;
298}
299
300QString QgsMapLayer::source() const
301{
302 return mDataSource;
303}
304
306{
307 return mExtent;
308}
309
310void QgsMapLayer::setBlendMode( const QPainter::CompositionMode blendMode )
311{
312 if ( mBlendMode == blendMode )
313 return;
314
315 mBlendMode = blendMode;
318}
319
320QPainter::CompositionMode QgsMapLayer::blendMode() const
321{
322 return mBlendMode;
323}
324
325void QgsMapLayer::setOpacity( double opacity )
326{
328 return;
330 emit opacityChanged( opacity );
332}
333
335{
336 return mLayerOpacity;
337}
338
339bool QgsMapLayer::readLayerXml( const QDomElement &layerElement, QgsReadWriteContext &context, QgsMapLayer::ReadFlags flags )
340{
341 bool layerError;
343
344 QDomNode mnl;
345 QDomElement mne;
346
347 // read provider
348 QString provider;
349 mnl = layerElement.namedItem( QStringLiteral( "provider" ) );
350 mne = mnl.toElement();
351 provider = mne.text();
352
353 // set data source
354 mnl = layerElement.namedItem( QStringLiteral( "datasource" ) );
355 mne = mnl.toElement();
356 mDataSource = context.pathResolver().readPath( mne.text() );
357
358 // if the layer needs authentication, ensure the master password is set
359 const thread_local QRegularExpression rx( "authcfg=([a-z]|[A-Z]|[0-9]){7}" );
360 if ( rx.match( mDataSource ).hasMatch()
362 {
363 return false;
364 }
365
366 mDataSource = decodedSource( mDataSource, provider, context );
367
368 // Set the CRS from project file, asking the user if necessary.
369 // Make it the saved CRS to have WMS layer projected correctly.
370 // We will still overwrite whatever GDAL etc picks up anyway
371 // further down this function.
372 mnl = layerElement.namedItem( QStringLiteral( "layername" ) );
373 mne = mnl.toElement();
374
376 CUSTOM_CRS_VALIDATION savedValidation;
377
378 const QDomNode srsNode = layerElement.namedItem( QStringLiteral( "srs" ) );
379 mCRS.readXml( srsNode );
380 mCRS.setValidationHint( tr( "Specify CRS for layer %1" ).arg( mne.text() ) );
382 mCRS.validate();
383 savedCRS = mCRS;
384
385 // Do not validate any projections in children, they will be overwritten anyway.
386 // No need to ask the user for a projections when it is overwritten, is there?
389
390 const QgsReadWriteContextCategoryPopper p = context.enterCategory( tr( "Layer" ), mne.text() );
391
392 // the internal name is just the data source basename
393 //QFileInfo dataSourceFileInfo( mDataSource );
394 //internalName = dataSourceFileInfo.baseName();
395
396 // set ID
397 mnl = layerElement.namedItem( QStringLiteral( "id" ) );
398 if ( ! mnl.isNull() )
399 {
400 mne = mnl.toElement();
401 if ( ! mne.isNull() && mne.text().length() > 10 ) // should be at least 17 (yyyyMMddhhmmsszzz)
402 {
403 mID = mne.text();
404 }
405 }
406
407 // set name
408 mnl = layerElement.namedItem( QStringLiteral( "layername" ) );
409 mne = mnl.toElement();
410
411 //name can be translated
412 setName( context.projectTranslator()->translate( QStringLiteral( "project:layers:%1" ).arg( layerElement.namedItem( QStringLiteral( "id" ) ).toElement().text() ), mne.text() ) );
413
414 // now let the children grab what they need from the Dom node.
415 layerError = !readXml( layerElement, context );
416
417 // overwrite CRS with what we read from project file before the raster/vector
418 // file reading functions changed it. They will if projections is specified in the file.
419 // FIXME: is this necessary? Yes, it is (autumn 2019)
421 mCRS = savedCRS;
422
423 //short name
424 const QDomElement shortNameElem = layerElement.firstChildElement( QStringLiteral( "shortname" ) );
425 if ( !shortNameElem.isNull() )
426 {
427 mShortName = shortNameElem.text();
428 }
429
430 //title
431 const QDomElement titleElem = layerElement.firstChildElement( QStringLiteral( "title" ) );
432 if ( !titleElem.isNull() )
433 {
434 mTitle = titleElem.text();
435 }
436
437 //abstract
438 const QDomElement abstractElem = layerElement.firstChildElement( QStringLiteral( "abstract" ) );
439 if ( !abstractElem.isNull() )
440 {
441 mAbstract = abstractElem.text();
442 }
443
444 //keywordList
445 const QDomElement keywordListElem = layerElement.firstChildElement( QStringLiteral( "keywordList" ) );
446 if ( !keywordListElem.isNull() )
447 {
448 QStringList kwdList;
449 for ( QDomNode n = keywordListElem.firstChild(); !n.isNull(); n = n.nextSibling() )
450 {
451 kwdList << n.toElement().text();
452 }
453 mKeywordList = kwdList.join( QLatin1String( ", " ) );
454 }
455
456 //dataUrl
457 const QDomElement dataUrlElem = layerElement.firstChildElement( QStringLiteral( "dataUrl" ) );
458 if ( !dataUrlElem.isNull() )
459 {
460 mDataUrl = dataUrlElem.text();
461 mDataUrlFormat = dataUrlElem.attribute( QStringLiteral( "format" ), QString() );
462 }
463
464 //legendUrl
465 const QDomElement legendUrlElem = layerElement.firstChildElement( QStringLiteral( "legendUrl" ) );
466 if ( !legendUrlElem.isNull() )
467 {
468 mLegendUrl = legendUrlElem.text();
469 mLegendUrlFormat = legendUrlElem.attribute( QStringLiteral( "format" ), QString() );
470 }
471
472 //attribution
473 const QDomElement attribElem = layerElement.firstChildElement( QStringLiteral( "attribution" ) );
474 if ( !attribElem.isNull() )
475 {
476 mAttribution = attribElem.text();
477 mAttributionUrl = attribElem.attribute( QStringLiteral( "href" ), QString() );
478 }
479
480 serverProperties()->readXml( layerElement );
481
482 if ( serverProperties()->metadataUrls().isEmpty() )
483 {
484 // metadataUrl is still empty, maybe it's a QGIS Project < 3.22
485 // keep for legacy
486 const QDomElement metaUrlElem = layerElement.firstChildElement( QStringLiteral( "metadataUrl" ) );
487 if ( !metaUrlElem.isNull() )
488 {
489 const QString url = metaUrlElem.text();
490 const QString type = metaUrlElem.attribute( QStringLiteral( "type" ), QString() );
491 const QString format = metaUrlElem.attribute( QStringLiteral( "format" ), QString() );
492 const QgsMapLayerServerProperties::MetadataUrl newItem( url, type, format );
493 mServerProperties->setMetadataUrls( QList<QgsMapLayerServerProperties::MetadataUrl>() << newItem );
494 }
495 }
496
497 // mMetadata.readFromLayer( this );
498 const QDomElement metadataElem = layerElement.firstChildElement( QStringLiteral( "resourceMetadata" ) );
499 mMetadata.readMetadataXml( metadataElem );
500
501 setAutoRefreshInterval( layerElement.attribute( QStringLiteral( "autoRefreshTime" ), QStringLiteral( "0" ) ).toInt() );
502 setAutoRefreshEnabled( layerElement.attribute( QStringLiteral( "autoRefreshEnabled" ), QStringLiteral( "0" ) ).toInt() );
503 setRefreshOnNofifyMessage( layerElement.attribute( QStringLiteral( "refreshOnNotifyMessage" ), QString() ) );
504 setRefreshOnNotifyEnabled( layerElement.attribute( QStringLiteral( "refreshOnNotifyEnabled" ), QStringLiteral( "0" ) ).toInt() );
505
506 // geographic extent is read only if necessary
507 if ( mReadFlags & QgsMapLayer::ReadFlag::FlagTrustLayerMetadata )
508 {
509 const QDomNode wgs84ExtentNode = layerElement.namedItem( QStringLiteral( "wgs84extent" ) );
510 if ( !wgs84ExtentNode.isNull() )
511 mWgs84Extent = QgsXmlUtils::readRectangle( wgs84ExtentNode.toElement() );
512 }
513
514 mLegendPlaceholderImage = layerElement.attribute( QStringLiteral( "legendPlaceholderImage" ) );
515
516 return ! layerError;
517} // bool QgsMapLayer::readLayerXML
518
519
520bool QgsMapLayer::readXml( const QDomNode &layer_node, QgsReadWriteContext &context )
521{
522 Q_UNUSED( layer_node )
523 Q_UNUSED( context )
524 // NOP by default; children will over-ride with behavior specific to them
525
526 // read Extent
528 {
529 const QDomNode extentNode = layer_node.namedItem( QStringLiteral( "extent" ) );
530 if ( !extentNode.isNull() )
531 {
532 mExtent = QgsXmlUtils::readRectangle( extentNode.toElement() );
533 }
534 }
535
536 return true;
537} // void QgsMapLayer::readXml
538
539
540bool QgsMapLayer::writeLayerXml( QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context ) const
541{
542 if ( !extent().isNull() )
543 {
544 layerElement.appendChild( QgsXmlUtils::writeRectangle( mExtent, document ) );
545 layerElement.appendChild( QgsXmlUtils::writeRectangle( wgs84Extent( true ), document, QStringLiteral( "wgs84extent" ) ) );
546 }
547
548 layerElement.setAttribute( QStringLiteral( "autoRefreshTime" ), QString::number( mRefreshTimer->interval() ) );
549 layerElement.setAttribute( QStringLiteral( "autoRefreshEnabled" ), mRefreshTimer->isActive() ? 1 : 0 );
550 layerElement.setAttribute( QStringLiteral( "refreshOnNotifyEnabled" ), mIsRefreshOnNofifyEnabled ? 1 : 0 );
551 layerElement.setAttribute( QStringLiteral( "refreshOnNotifyMessage" ), mRefreshOnNofifyMessage );
552
553 // ID
554 QDomElement layerId = document.createElement( QStringLiteral( "id" ) );
555 const QDomText layerIdText = document.createTextNode( id() );
556 layerId.appendChild( layerIdText );
557
558 layerElement.appendChild( layerId );
559
560 // data source
561 QDomElement dataSource = document.createElement( QStringLiteral( "datasource" ) );
562 const QString src = context.pathResolver().writePath( encodedSource( source(), context ) );
563 const QDomText dataSourceText = document.createTextNode( src );
564 dataSource.appendChild( dataSourceText );
565 layerElement.appendChild( dataSource );
566
567 // layer name
568 QDomElement layerName = document.createElement( QStringLiteral( "layername" ) );
569 const QDomText layerNameText = document.createTextNode( name() );
570 layerName.appendChild( layerNameText );
571 layerElement.appendChild( layerName );
572
573 // layer short name
574 if ( !mShortName.isEmpty() )
575 {
576 QDomElement layerShortName = document.createElement( QStringLiteral( "shortname" ) );
577 const QDomText layerShortNameText = document.createTextNode( mShortName );
578 layerShortName.appendChild( layerShortNameText );
579 layerElement.appendChild( layerShortName );
580 }
581
582 // layer title
583 if ( !mTitle.isEmpty() )
584 {
585 QDomElement layerTitle = document.createElement( QStringLiteral( "title" ) );
586 const QDomText layerTitleText = document.createTextNode( mTitle );
587 layerTitle.appendChild( layerTitleText );
588 layerElement.appendChild( layerTitle );
589 }
590
591 // layer abstract
592 if ( !mAbstract.isEmpty() )
593 {
594 QDomElement layerAbstract = document.createElement( QStringLiteral( "abstract" ) );
595 const QDomText layerAbstractText = document.createTextNode( mAbstract );
596 layerAbstract.appendChild( layerAbstractText );
597 layerElement.appendChild( layerAbstract );
598 }
599
600 // layer keyword list
601 const QStringList keywordStringList = keywordList().split( ',' );
602 if ( !keywordStringList.isEmpty() )
603 {
604 QDomElement layerKeywordList = document.createElement( QStringLiteral( "keywordList" ) );
605 for ( int i = 0; i < keywordStringList.size(); ++i )
606 {
607 QDomElement layerKeywordValue = document.createElement( QStringLiteral( "value" ) );
608 const QDomText layerKeywordText = document.createTextNode( keywordStringList.at( i ).trimmed() );
609 layerKeywordValue.appendChild( layerKeywordText );
610 layerKeywordList.appendChild( layerKeywordValue );
611 }
612 layerElement.appendChild( layerKeywordList );
613 }
614
615 // layer dataUrl
616 const QString aDataUrl = dataUrl();
617 if ( !aDataUrl.isEmpty() )
618 {
619 QDomElement layerDataUrl = document.createElement( QStringLiteral( "dataUrl" ) );
620 const QDomText layerDataUrlText = document.createTextNode( aDataUrl );
621 layerDataUrl.appendChild( layerDataUrlText );
622 layerDataUrl.setAttribute( QStringLiteral( "format" ), dataUrlFormat() );
623 layerElement.appendChild( layerDataUrl );
624 }
625
626 // layer legendUrl
627 const QString aLegendUrl = legendUrl();
628 if ( !aLegendUrl.isEmpty() )
629 {
630 QDomElement layerLegendUrl = document.createElement( QStringLiteral( "legendUrl" ) );
631 const QDomText layerLegendUrlText = document.createTextNode( aLegendUrl );
632 layerLegendUrl.appendChild( layerLegendUrlText );
633 layerLegendUrl.setAttribute( QStringLiteral( "format" ), legendUrlFormat() );
634 layerElement.appendChild( layerLegendUrl );
635 }
636
637 // layer attribution
638 const QString aAttribution = attribution();
639 if ( !aAttribution.isEmpty() )
640 {
641 QDomElement layerAttribution = document.createElement( QStringLiteral( "attribution" ) );
642 const QDomText layerAttributionText = document.createTextNode( aAttribution );
643 layerAttribution.appendChild( layerAttributionText );
644 layerAttribution.setAttribute( QStringLiteral( "href" ), attributionUrl() );
645 layerElement.appendChild( layerAttribution );
646 }
647
648 // timestamp if supported
649 if ( timestamp() > QDateTime() )
650 {
651 QDomElement stamp = document.createElement( QStringLiteral( "timestamp" ) );
652 const QDomText stampText = document.createTextNode( timestamp().toString( Qt::ISODate ) );
653 stamp.appendChild( stampText );
654 layerElement.appendChild( stamp );
655 }
656
657 layerElement.appendChild( layerName );
658
659 // zorder
660 // This is no longer stored in the project file. It is superfluous since the layers
661 // are written and read in the proper order.
662
663 // spatial reference system id
664 QDomElement mySrsElement = document.createElement( QStringLiteral( "srs" ) );
665 mCRS.writeXml( mySrsElement, document );
666 layerElement.appendChild( mySrsElement );
667
668 // layer metadata
669 QDomElement myMetadataElem = document.createElement( QStringLiteral( "resourceMetadata" ) );
670 mMetadata.writeMetadataXml( myMetadataElem, document );
671 layerElement.appendChild( myMetadataElem );
672
673 layerElement.setAttribute( QStringLiteral( "legendPlaceholderImage" ), mLegendPlaceholderImage );
674
675 // now append layer node to map layer node
676 return writeXml( layerElement, document, context );
677}
678
679void QgsMapLayer::writeCommonStyle( QDomElement &layerElement, QDomDocument &document,
680 const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories ) const
681{
682 // save categories
683 const QMetaEnum metaEnum = QMetaEnum::fromType<QgsMapLayer::StyleCategories>();
684 const QString categoriesKeys( metaEnum.valueToKeys( static_cast<int>( categories ) ) );
685 layerElement.setAttribute( QStringLiteral( "styleCategories" ), categoriesKeys );
686
687 if ( categories.testFlag( Rendering ) )
688 {
689 // use scale dependent visibility flag
690 layerElement.setAttribute( QStringLiteral( "hasScaleBasedVisibilityFlag" ), hasScaleBasedVisibility() ? 1 : 0 );
691 layerElement.setAttribute( QStringLiteral( "maxScale" ), QString::number( maximumScale() ) );
692 layerElement.setAttribute( QStringLiteral( "minScale" ), QString::number( minimumScale() ) );
693 }
694
695 if ( categories.testFlag( Symbology3D ) )
696 {
697 if ( m3DRenderer )
698 {
699 QDomElement renderer3DElem = document.createElement( QStringLiteral( "renderer-3d" ) );
700 renderer3DElem.setAttribute( QStringLiteral( "type" ), m3DRenderer->type() );
701 m3DRenderer->writeXml( renderer3DElem, context );
702 layerElement.appendChild( renderer3DElem );
703 }
704 }
705
706 if ( categories.testFlag( LayerConfiguration ) )
707 {
708 // flags
709 // this code is saving automatically all the flags entries
710 QDomElement layerFlagsElem = document.createElement( QStringLiteral( "flags" ) );
711 const auto enumMap = qgsEnumMap<QgsMapLayer::LayerFlag>();
712 for ( auto it = enumMap.constBegin(); it != enumMap.constEnd(); ++it )
713 {
714 const bool flagValue = mFlags.testFlag( it.key() );
715 QDomElement flagElem = document.createElement( it.value() );
716 flagElem.appendChild( document.createTextNode( QString::number( flagValue ) ) );
717 layerFlagsElem.appendChild( flagElem );
718 }
719 layerElement.appendChild( layerFlagsElem );
720 }
721
722 if ( categories.testFlag( Temporal ) )
723 {
725 properties->writeXml( layerElement, document, context );
726 }
727
728 if ( categories.testFlag( Elevation ) )
729 {
731 properties->writeXml( layerElement, document, context );
732 }
733
734 if ( categories.testFlag( Notes ) && QgsLayerNotesUtils::layerHasNotes( this ) )
735 {
736 QDomElement notesElem = document.createElement( QStringLiteral( "userNotes" ) );
737 notesElem.setAttribute( QStringLiteral( "value" ), QgsLayerNotesUtils::layerNotes( this ) );
738 layerElement.appendChild( notesElem );
739 }
740
741 // custom properties
742 if ( categories.testFlag( CustomProperties ) )
743 {
744 writeCustomProperties( layerElement, document );
745 }
746}
747
748
749bool QgsMapLayer::writeXml( QDomNode &layer_node, QDomDocument &document, const QgsReadWriteContext &context ) const
750{
751 Q_UNUSED( layer_node )
752 Q_UNUSED( document )
753 Q_UNUSED( context )
754 // NOP by default; children will over-ride with behavior specific to them
755
756 return true;
757}
758
759QString QgsMapLayer::encodedSource( const QString &source, const QgsReadWriteContext &context ) const
760{
761 Q_UNUSED( context )
762 return source;
763}
764
765QString QgsMapLayer::decodedSource( const QString &source, const QString &dataProvider, const QgsReadWriteContext &context ) const
766{
767 Q_UNUSED( context )
768 Q_UNUSED( dataProvider )
769 return source;
770}
771
773{
775 if ( m3DRenderer )
776 m3DRenderer->resolveReferences( *project );
777}
778
779
780void QgsMapLayer::readCustomProperties( const QDomNode &layerNode, const QString &keyStartsWith )
781{
782 const QgsObjectCustomProperties oldKeys = mCustomProperties;
783
784 mCustomProperties.readXml( layerNode, keyStartsWith );
785
786 for ( const QString &key : mCustomProperties.keys() )
787 {
788 if ( !oldKeys.contains( key ) || mCustomProperties.value( key ) != oldKeys.value( key ) )
789 {
790 emit customPropertyChanged( key );
791 }
792 }
793}
794
795void QgsMapLayer::writeCustomProperties( QDomNode &layerNode, QDomDocument &doc ) const
796{
797 mCustomProperties.writeXml( layerNode, doc );
798}
799
800void QgsMapLayer::readStyleManager( const QDomNode &layerNode )
801{
802 const QDomElement styleMgrElem = layerNode.firstChildElement( QStringLiteral( "map-layer-style-manager" ) );
803 if ( !styleMgrElem.isNull() )
804 mStyleManager->readXml( styleMgrElem );
805 else
806 mStyleManager->reset();
807}
808
809void QgsMapLayer::writeStyleManager( QDomNode &layerNode, QDomDocument &doc ) const
810{
811 if ( mStyleManager )
812 {
813 QDomElement styleMgrElem = doc.createElement( QStringLiteral( "map-layer-style-manager" ) );
814 mStyleManager->writeXml( styleMgrElem );
815 layerNode.appendChild( styleMgrElem );
816 }
817}
818
820{
821 return mValid;
822}
823
824#if 0
825void QgsMapLayer::connectNotify( const char *signal )
826{
827 Q_UNUSED( signal )
828 QgsDebugMsgLevel( "QgsMapLayer connected to " + QString( signal ), 3 );
829} // QgsMapLayer::connectNotify
830#endif
831
832bool QgsMapLayer::isInScaleRange( double scale ) const
833{
834 return !mScaleBasedVisibility ||
835 ( ( mMinScale == 0 || mMinScale * Qgis::SCALE_PRECISION < scale )
836 && ( mMaxScale == 0 || scale < mMaxScale ) );
837}
838
840{
841 return mScaleBasedVisibility;
842}
843
845{
846 return mRefreshTimer->isActive();
847}
848
850{
851 return mRefreshTimer->interval();
852}
853
855{
856 if ( interval <= 0 )
857 {
858 mRefreshTimer->stop();
859 mRefreshTimer->setInterval( 0 );
860 }
861 else
862 {
863 mRefreshTimer->setInterval( interval );
864 }
865 emit autoRefreshIntervalChanged( mRefreshTimer->isActive() ? mRefreshTimer->interval() : 0 );
866}
867
869{
870 if ( !enabled )
871 mRefreshTimer->stop();
872 else if ( mRefreshTimer->interval() > 0 )
873 mRefreshTimer->start();
874
875 emit autoRefreshIntervalChanged( mRefreshTimer->isActive() ? mRefreshTimer->interval() : 0 );
876}
877
879{
880 return mMetadata;
881}
882
884{
885 mMinScale = scale;
886}
887
889{
890 return mMinScale;
891}
892
893
895{
896 mMaxScale = scale;
897}
898
899void QgsMapLayer::setScaleBasedVisibility( const bool enabled )
900{
901 mScaleBasedVisibility = enabled;
902}
903
905{
906 return mMaxScale;
907}
908
909QStringList QgsMapLayer::subLayers() const
910{
911 return QStringList(); // Empty
912}
913
914void QgsMapLayer::setLayerOrder( const QStringList &layers )
915{
916 Q_UNUSED( layers )
917 // NOOP
918}
919
920void QgsMapLayer::setSubLayerVisibility( const QString &name, bool vis )
921{
922 Q_UNUSED( name )
923 Q_UNUSED( vis )
924 // NOOP
925}
926
928{
929 return false;
930}
931
933{
934 return mCRS;
935}
936
937void QgsMapLayer::setCrs( const QgsCoordinateReferenceSystem &srs, bool emitSignal )
938{
939 mCRS = srs;
940
942 {
943 mCRS.setValidationHint( tr( "Specify CRS for layer %1" ).arg( name() ) );
944 mCRS.validate();
945 }
946
947 if ( emitSignal )
948 emit crsChanged();
949}
950
952{
953 const QgsDataProvider *lDataProvider = dataProvider();
954 return lDataProvider ? lDataProvider->transformContext() : QgsCoordinateTransformContext();
955}
956
957QString QgsMapLayer::formatLayerName( const QString &name )
958{
959 QString layerName( name );
960 layerName.replace( '_', ' ' );
962 return layerName;
963}
964
965QString QgsMapLayer::baseURI( PropertyType type ) const
966{
967 QString myURI = publicSource();
968
969 // first get base path for delimited text, spatialite and OGR layers,
970 // as in these cases URI may contain layer name and/or additional
971 // information. This also strips prefix in case if VSIFILE mechanism
972 // is used
973 if ( providerType() == QLatin1String( "ogr" ) || providerType() == QLatin1String( "delimitedtext" )
974 || providerType() == QLatin1String( "gdal" ) || providerType() == QLatin1String( "spatialite" ) )
975 {
976 QVariantMap components = QgsProviderRegistry::instance()->decodeUri( providerType(), myURI );
977 myURI = components["path"].toString();
978 }
979
980 QFileInfo myFileInfo( myURI );
981 QString key;
982
983 if ( myFileInfo.exists() )
984 {
985 // if file is using the /vsizip/ or /vsigzip/ mechanism, cleanup the name
986 if ( myURI.endsWith( QLatin1String( ".gz" ), Qt::CaseInsensitive ) )
987 myURI.chop( 3 );
988 else if ( myURI.endsWith( QLatin1String( ".zip" ), Qt::CaseInsensitive ) )
989 myURI.chop( 4 );
990 else if ( myURI.endsWith( QLatin1String( ".tar" ), Qt::CaseInsensitive ) )
991 myURI.chop( 4 );
992 else if ( myURI.endsWith( QLatin1String( ".tar.gz" ), Qt::CaseInsensitive ) )
993 myURI.chop( 7 );
994 else if ( myURI.endsWith( QLatin1String( ".tgz" ), Qt::CaseInsensitive ) )
995 myURI.chop( 4 );
996 myFileInfo.setFile( myURI );
997 // get the file name for our .qml style file
998 key = myFileInfo.path() + QDir::separator() + myFileInfo.completeBaseName() + QgsMapLayer::extensionPropertyType( type );
999 }
1000 else
1001 {
1002 key = publicSource();
1003 }
1004
1005 return key;
1006}
1007
1009{
1010 return baseURI( PropertyType::Metadata );
1011}
1012
1013QString QgsMapLayer::saveDefaultMetadata( bool &resultFlag )
1014{
1015 if ( const QgsProviderMetadata *metadata = QgsProviderRegistry::instance()->providerMetadata( providerType() ) )
1016 {
1017 if ( metadata->providerCapabilities() & QgsProviderMetadata::SaveLayerMetadata )
1018 {
1019 try
1020 {
1021 QString errorMessage;
1022 resultFlag = QgsProviderRegistry::instance()->saveLayerMetadata( providerType(), mDataSource, mMetadata, errorMessage );
1023 if ( resultFlag )
1024 return tr( "Successfully saved default layer metadata" );
1025 else
1026 return errorMessage;
1027 }
1028 catch ( QgsNotSupportedException &e )
1029 {
1030 resultFlag = false;
1031 return e.what();
1032 }
1033 }
1034 }
1035
1036 // fallback default metadata saving method, for providers which don't support (or implement) saveLayerMetadata
1037 return saveNamedMetadata( metadataUri(), resultFlag );
1038}
1039
1040QString QgsMapLayer::loadDefaultMetadata( bool &resultFlag )
1041{
1042 return loadNamedMetadata( metadataUri(), resultFlag );
1043}
1044
1046{
1047 return baseURI( PropertyType::Style );
1048}
1049
1050QString QgsMapLayer::loadDefaultStyle( bool &resultFlag )
1051{
1052 return loadNamedStyle( styleURI(), resultFlag );
1053}
1054
1055bool QgsMapLayer::loadNamedMetadataFromDatabase( const QString &db, const QString &uri, QString &qmd )
1056{
1057 return loadNamedPropertyFromDatabase( db, uri, qmd, PropertyType::Metadata );
1058}
1059
1060bool QgsMapLayer::loadNamedStyleFromDatabase( const QString &db, const QString &uri, QString &qml )
1061{
1062 return loadNamedPropertyFromDatabase( db, uri, qml, PropertyType::Style );
1063}
1064
1065bool QgsMapLayer::loadNamedPropertyFromDatabase( const QString &db, const QString &uri, QString &xml, QgsMapLayer::PropertyType type )
1066{
1067 QgsDebugMsgLevel( QStringLiteral( "db = %1 uri = %2" ).arg( db, uri ), 4 );
1068
1069 bool resultFlag = false;
1070
1071 // read from database
1074
1075 int myResult;
1076
1077 QgsDebugMsgLevel( QStringLiteral( "Trying to load style or metadata for \"%1\" from \"%2\"" ).arg( uri, db ), 4 );
1078
1079 if ( db.isEmpty() || !QFile( db ).exists() )
1080 return false;
1081
1082 myResult = database.open_v2( db, SQLITE_OPEN_READONLY, nullptr );
1083 if ( myResult != SQLITE_OK )
1084 {
1085 return false;
1086 }
1087
1088 QString mySql;
1089 switch ( type )
1090 {
1091 case Metadata:
1092 mySql = QStringLiteral( "select qmd from tbl_metadata where metadata=?" );
1093 break;
1094
1095 case Style:
1096 mySql = QStringLiteral( "select qml from tbl_styles where style=?" );
1097 break;
1098 }
1099
1100 statement = database.prepare( mySql, myResult );
1101 if ( myResult == SQLITE_OK )
1102 {
1103 QByteArray param = uri.toUtf8();
1104
1105 if ( sqlite3_bind_text( statement.get(), 1, param.data(), param.length(), SQLITE_STATIC ) == SQLITE_OK &&
1106 sqlite3_step( statement.get() ) == SQLITE_ROW )
1107 {
1108 xml = QString::fromUtf8( reinterpret_cast< const char * >( sqlite3_column_text( statement.get(), 0 ) ) );
1109 resultFlag = true;
1110 }
1111 }
1112 return resultFlag;
1113}
1114
1115
1116QString QgsMapLayer::loadNamedStyle( const QString &uri, bool &resultFlag, QgsMapLayer::StyleCategories categories )
1117{
1118 return loadNamedProperty( uri, PropertyType::Style, resultFlag, categories );
1119}
1120
1121QString QgsMapLayer::loadNamedProperty( const QString &uri, QgsMapLayer::PropertyType type, bool &resultFlag, StyleCategories categories )
1122{
1123 QgsDebugMsgLevel( QStringLiteral( "uri = %1 myURI = %2" ).arg( uri, publicSource() ), 4 );
1124
1125 resultFlag = false;
1126 if ( uri.isEmpty() )
1127 return QString();
1128
1129 QDomDocument myDocument( QStringLiteral( "qgis" ) );
1130
1131 // location of problem associated with errorMsg
1132 int line, column;
1133 QString myErrorMessage;
1134
1135 QFile myFile( uri );
1136 if ( myFile.open( QFile::ReadOnly ) )
1137 {
1138 QgsDebugMsgLevel( QStringLiteral( "file found %1" ).arg( uri ), 2 );
1139 // read file
1140 resultFlag = myDocument.setContent( &myFile, &myErrorMessage, &line, &column );
1141 if ( !resultFlag )
1142 myErrorMessage = tr( "%1 at line %2 column %3" ).arg( myErrorMessage ).arg( line ).arg( column );
1143 myFile.close();
1144 }
1145 else
1146 {
1147 const QFileInfo project( QgsProject::instance()->fileName() );
1148 QgsDebugMsgLevel( QStringLiteral( "project fileName: %1" ).arg( project.absoluteFilePath() ), 4 );
1149
1150 QString xml;
1151 switch ( type )
1152 {
1153 case QgsMapLayer::Style:
1154 {
1155 if ( loadNamedStyleFromDatabase( QDir( QgsApplication::qgisSettingsDirPath() ).absoluteFilePath( QStringLiteral( "qgis.qmldb" ) ), uri, xml ) ||
1156 ( project.exists() && loadNamedStyleFromDatabase( project.absoluteDir().absoluteFilePath( project.baseName() + ".qmldb" ), uri, xml ) ) ||
1157 loadNamedStyleFromDatabase( QDir( QgsApplication::pkgDataPath() ).absoluteFilePath( QStringLiteral( "resources/qgis.qmldb" ) ), uri, xml ) )
1158 {
1159 resultFlag = myDocument.setContent( xml, &myErrorMessage, &line, &column );
1160 if ( !resultFlag )
1161 {
1162 myErrorMessage = tr( "%1 at line %2 column %3" ).arg( myErrorMessage ).arg( line ).arg( column );
1163 }
1164 }
1165 else
1166 {
1167 myErrorMessage = tr( "Style not found in database" );
1168 resultFlag = false;
1169 }
1170 break;
1171 }
1173 {
1174 if ( loadNamedMetadataFromDatabase( QDir( QgsApplication::qgisSettingsDirPath() ).absoluteFilePath( QStringLiteral( "qgis.qmldb" ) ), uri, xml ) ||
1175 ( project.exists() && loadNamedMetadataFromDatabase( project.absoluteDir().absoluteFilePath( project.baseName() + ".qmldb" ), uri, xml ) ) ||
1176 loadNamedMetadataFromDatabase( QDir( QgsApplication::pkgDataPath() ).absoluteFilePath( QStringLiteral( "resources/qgis.qmldb" ) ), uri, xml ) )
1177 {
1178 resultFlag = myDocument.setContent( xml, &myErrorMessage, &line, &column );
1179 if ( !resultFlag )
1180 {
1181 myErrorMessage = tr( "%1 at line %2 column %3" ).arg( myErrorMessage ).arg( line ).arg( column );
1182 }
1183 }
1184 else
1185 {
1186 myErrorMessage = tr( "Metadata not found in database" );
1187 resultFlag = false;
1188 }
1189 break;
1190 }
1191 }
1192 }
1193
1194 if ( !resultFlag )
1195 {
1196 return myErrorMessage;
1197 }
1198
1199 switch ( type )
1200 {
1201 case QgsMapLayer::Style:
1202 resultFlag = importNamedStyle( myDocument, myErrorMessage, categories );
1203 if ( !resultFlag )
1204 myErrorMessage = tr( "Loading style file %1 failed because:\n%2" ).arg( uri, myErrorMessage );
1205 break;
1207 resultFlag = importNamedMetadata( myDocument, myErrorMessage );
1208 if ( !resultFlag )
1209 myErrorMessage = tr( "Loading metadata file %1 failed because:\n%2" ).arg( uri, myErrorMessage );
1210 break;
1211 }
1212 return myErrorMessage;
1213}
1214
1215bool QgsMapLayer::importNamedMetadata( QDomDocument &document, QString &errorMessage )
1216{
1217 const QDomElement myRoot = document.firstChildElement( QStringLiteral( "qgis" ) );
1218 if ( myRoot.isNull() )
1219 {
1220 errorMessage = tr( "Root <qgis> element could not be found" );
1221 return false;
1222 }
1223
1224 return mMetadata.readMetadataXml( myRoot );
1225}
1226
1227bool QgsMapLayer::importNamedStyle( QDomDocument &myDocument, QString &myErrorMessage, QgsMapLayer::StyleCategories categories )
1228{
1229 const QDomElement myRoot = myDocument.firstChildElement( QStringLiteral( "qgis" ) );
1230 if ( myRoot.isNull() )
1231 {
1232 myErrorMessage = tr( "Root <qgis> element could not be found" );
1233 return false;
1234 }
1235
1236 // get style file version string, if any
1237 const QgsProjectVersion fileVersion( myRoot.attribute( QStringLiteral( "version" ) ) );
1238 const QgsProjectVersion thisVersion( Qgis::version() );
1239
1240 if ( thisVersion > fileVersion )
1241 {
1242 QgsProjectFileTransform styleFile( myDocument, fileVersion );
1243 styleFile.updateRevision( thisVersion );
1244 }
1245
1246 // Get source categories
1247 const QgsMapLayer::StyleCategories sourceCategories = QgsXmlUtils::readFlagAttribute( myRoot, QStringLiteral( "styleCategories" ), QgsMapLayer::AllStyleCategories );
1248
1249 //Test for matching geometry type on vector layers when applying, if geometry type is given in the style
1250 if ( ( sourceCategories.testFlag( QgsMapLayer::Symbology ) || sourceCategories.testFlag( QgsMapLayer::Symbology3D ) ) &&
1251 ( categories.testFlag( QgsMapLayer::Symbology ) || categories.testFlag( QgsMapLayer::Symbology3D ) ) )
1252 {
1253 if ( type() == QgsMapLayerType::VectorLayer && !myRoot.firstChildElement( QStringLiteral( "layerGeometryType" ) ).isNull() )
1254 {
1255 QgsVectorLayer *vl = qobject_cast<QgsVectorLayer *>( this );
1256 const QgsWkbTypes::GeometryType importLayerGeometryType = static_cast<QgsWkbTypes::GeometryType>( myRoot.firstChildElement( QStringLiteral( "layerGeometryType" ) ).text().toInt() );
1257 if ( importLayerGeometryType != QgsWkbTypes::GeometryType::UnknownGeometry && vl->geometryType() != importLayerGeometryType )
1258 {
1259 myErrorMessage = tr( "Cannot apply style with symbology to layer with a different geometry type" );
1260 return false;
1261 }
1262 }
1263 }
1264
1266 return readSymbology( myRoot, myErrorMessage, context, categories ); // TODO: support relative paths in QML?
1267}
1268
1269void QgsMapLayer::exportNamedMetadata( QDomDocument &doc, QString &errorMsg ) const
1270{
1271 QDomImplementation DomImplementation;
1272 const QDomDocumentType documentType = DomImplementation.createDocumentType( QStringLiteral( "qgis" ), QStringLiteral( "http://mrcc.com/qgis.dtd" ), QStringLiteral( "SYSTEM" ) );
1273 QDomDocument myDocument( documentType );
1274
1275 QDomElement myRootNode = myDocument.createElement( QStringLiteral( "qgis" ) );
1276 myRootNode.setAttribute( QStringLiteral( "version" ), Qgis::version() );
1277 myDocument.appendChild( myRootNode );
1278
1279 if ( !mMetadata.writeMetadataXml( myRootNode, myDocument ) )
1280 {
1281 errorMsg = QObject::tr( "Could not save metadata" );
1282 return;
1283 }
1284
1285 doc = myDocument;
1286}
1287
1288void QgsMapLayer::exportNamedStyle( QDomDocument &doc, QString &errorMsg, const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories ) const
1289{
1290 QDomImplementation DomImplementation;
1291 const QDomDocumentType documentType = DomImplementation.createDocumentType( QStringLiteral( "qgis" ), QStringLiteral( "http://mrcc.com/qgis.dtd" ), QStringLiteral( "SYSTEM" ) );
1292 QDomDocument myDocument( documentType );
1293
1294 QDomElement myRootNode = myDocument.createElement( QStringLiteral( "qgis" ) );
1295 myRootNode.setAttribute( QStringLiteral( "version" ), Qgis::version() );
1296 myDocument.appendChild( myRootNode );
1297
1298 if ( !writeSymbology( myRootNode, myDocument, errorMsg, context, categories ) ) // TODO: support relative paths in QML?
1299 {
1300 errorMsg = QObject::tr( "Could not save symbology because:\n%1" ).arg( errorMsg );
1301 return;
1302 }
1303
1304 /*
1305 * Check to see if the layer is vector - in which case we should also export its geometryType
1306 * to avoid eventually pasting to a layer with a different geometry
1307 */
1309 {
1310 //Getting the selectionLayer geometry
1311 const QgsVectorLayer *vl = qobject_cast<const QgsVectorLayer *>( this );
1312 const QString geoType = QString::number( vl->geometryType() );
1313
1314 //Adding geometryinformation
1315 QDomElement layerGeometryType = myDocument.createElement( QStringLiteral( "layerGeometryType" ) );
1316 const QDomText type = myDocument.createTextNode( geoType );
1317
1318 layerGeometryType.appendChild( type );
1319 myRootNode.appendChild( layerGeometryType );
1320 }
1321
1322 doc = myDocument;
1323}
1324
1325QString QgsMapLayer::saveDefaultStyle( bool &resultFlag )
1326{
1327 return saveDefaultStyle( resultFlag, AllStyleCategories );
1328}
1329
1330QString QgsMapLayer::saveDefaultStyle( bool &resultFlag, StyleCategories categories )
1331{
1332 return saveNamedStyle( styleURI(), resultFlag, categories );
1333}
1334
1335QString QgsMapLayer::saveNamedMetadata( const QString &uri, bool &resultFlag )
1336{
1337 return saveNamedProperty( uri, QgsMapLayer::Metadata, resultFlag );
1338}
1339
1340QString QgsMapLayer::loadNamedMetadata( const QString &uri, bool &resultFlag )
1341{
1342 return loadNamedProperty( uri, QgsMapLayer::Metadata, resultFlag );
1343}
1344
1345QString QgsMapLayer::saveNamedProperty( const QString &uri, QgsMapLayer::PropertyType type, bool &resultFlag, StyleCategories categories )
1346{
1347 // check if the uri is a file or ends with .qml/.qmd,
1348 // which indicates that it should become one
1349 // everything else goes to the database
1350 QString filename;
1351
1352 QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( this );
1353 if ( vlayer && vlayer->providerType() == QLatin1String( "ogr" ) )
1354 {
1355 QStringList theURIParts = uri.split( '|' );
1356 filename = theURIParts[0];
1357 }
1358 else if ( vlayer && vlayer->providerType() == QLatin1String( "gpx" ) )
1359 {
1360 QStringList theURIParts = uri.split( '?' );
1361 filename = theURIParts[0];
1362 }
1363 else if ( vlayer && vlayer->providerType() == QLatin1String( "delimitedtext" ) )
1364 {
1365 filename = QUrl::fromEncoded( uri.toLatin1() ).toLocalFile();
1366 // toLocalFile() returns an empty string if theURI is a plain Windows-path, e.g. "C:/style.qml"
1367 if ( filename.isEmpty() )
1368 filename = uri;
1369 }
1370 else
1371 {
1372 filename = uri;
1373 }
1374
1375 QString myErrorMessage;
1376 QDomDocument myDocument;
1377 switch ( type )
1378 {
1379 case Metadata:
1380 exportNamedMetadata( myDocument, myErrorMessage );
1381 break;
1382
1383 case Style:
1384 const QgsReadWriteContext context;
1385 exportNamedStyle( myDocument, myErrorMessage, context, categories );
1386 break;
1387 }
1388
1389 const QFileInfo myFileInfo( filename );
1390 if ( myFileInfo.exists() || filename.endsWith( QgsMapLayer::extensionPropertyType( type ), Qt::CaseInsensitive ) )
1391 {
1392 const QFileInfo myDirInfo( myFileInfo.path() ); //excludes file name
1393 if ( !myDirInfo.isWritable() )
1394 {
1395 return tr( "The directory containing your dataset needs to be writable!" );
1396 }
1397
1398 // now construct the file name for our .qml or .qmd file
1399 const QString myFileName = myFileInfo.path() + QDir::separator() + myFileInfo.completeBaseName() + QgsMapLayer::extensionPropertyType( type );
1400
1401 QFile myFile( myFileName );
1402 if ( myFile.open( QFile::WriteOnly | QFile::Truncate ) )
1403 {
1404 QTextStream myFileStream( &myFile );
1405 // save as utf-8 with 2 spaces for indents
1406 myDocument.save( myFileStream, 2 );
1407 myFile.close();
1408 resultFlag = true;
1409 switch ( type )
1410 {
1411 case Metadata:
1412 return tr( "Created default metadata file as %1" ).arg( myFileName );
1413
1414 case Style:
1415 return tr( "Created default style file as %1" ).arg( myFileName );
1416 }
1417
1418 }
1419 else
1420 {
1421 resultFlag = false;
1422 switch ( type )
1423 {
1424 case Metadata:
1425 return tr( "ERROR: Failed to created default metadata file as %1. Check file permissions and retry." ).arg( myFileName );
1426
1427 case Style:
1428 return tr( "ERROR: Failed to created default style file as %1. Check file permissions and retry." ).arg( myFileName );
1429 }
1430 }
1431 }
1432 else
1433 {
1434 const QString qml = myDocument.toString();
1435
1436 // read from database
1439
1440 int myResult = database.open( QDir( QgsApplication::qgisSettingsDirPath() ).absoluteFilePath( QStringLiteral( "qgis.qmldb" ) ) );
1441 if ( myResult != SQLITE_OK )
1442 {
1443 return tr( "User database could not be opened." );
1444 }
1445
1446 QByteArray param0 = uri.toUtf8();
1447 QByteArray param1 = qml.toUtf8();
1448
1449 QString mySql;
1450 switch ( type )
1451 {
1452 case Metadata:
1453 mySql = QStringLiteral( "create table if not exists tbl_metadata(metadata varchar primary key,qmd varchar)" );
1454 break;
1455
1456 case Style:
1457 mySql = QStringLiteral( "create table if not exists tbl_styles(style varchar primary key,qml varchar)" );
1458 break;
1459 }
1460
1461 statement = database.prepare( mySql, myResult );
1462 if ( myResult == SQLITE_OK )
1463 {
1464 if ( sqlite3_step( statement.get() ) != SQLITE_DONE )
1465 {
1466 resultFlag = false;
1467 switch ( type )
1468 {
1469 case Metadata:
1470 return tr( "The metadata table could not be created." );
1471
1472 case Style:
1473 return tr( "The style table could not be created." );
1474 }
1475 }
1476 }
1477
1478 switch ( type )
1479 {
1480 case Metadata:
1481 mySql = QStringLiteral( "insert into tbl_metadata(metadata,qmd) values (?,?)" );
1482 break;
1483
1484 case Style:
1485 mySql = QStringLiteral( "insert into tbl_styles(style,qml) values (?,?)" );
1486 break;
1487 }
1488 statement = database.prepare( mySql, myResult );
1489 if ( myResult == SQLITE_OK )
1490 {
1491 if ( sqlite3_bind_text( statement.get(), 1, param0.data(), param0.length(), SQLITE_STATIC ) == SQLITE_OK &&
1492 sqlite3_bind_text( statement.get(), 2, param1.data(), param1.length(), SQLITE_STATIC ) == SQLITE_OK &&
1493 sqlite3_step( statement.get() ) == SQLITE_DONE )
1494 {
1495 resultFlag = true;
1496 switch ( type )
1497 {
1498 case Metadata:
1499 myErrorMessage = tr( "The metadata %1 was saved to database" ).arg( uri );
1500 break;
1501
1502 case Style:
1503 myErrorMessage = tr( "The style %1 was saved to database" ).arg( uri );
1504 break;
1505 }
1506 }
1507 }
1508
1509 if ( !resultFlag )
1510 {
1511 QString mySql;
1512 switch ( type )
1513 {
1514 case Metadata:
1515 mySql = QStringLiteral( "update tbl_metadata set qmd=? where metadata=?" );
1516 break;
1517
1518 case Style:
1519 mySql = QStringLiteral( "update tbl_styles set qml=? where style=?" );
1520 break;
1521 }
1522 statement = database.prepare( mySql, myResult );
1523 if ( myResult == SQLITE_OK )
1524 {
1525 if ( sqlite3_bind_text( statement.get(), 2, param0.data(), param0.length(), SQLITE_STATIC ) == SQLITE_OK &&
1526 sqlite3_bind_text( statement.get(), 1, param1.data(), param1.length(), SQLITE_STATIC ) == SQLITE_OK &&
1527 sqlite3_step( statement.get() ) == SQLITE_DONE )
1528 {
1529 resultFlag = true;
1530 switch ( type )
1531 {
1532 case Metadata:
1533 myErrorMessage = tr( "The metadata %1 was updated in the database." ).arg( uri );
1534 break;
1535
1536 case Style:
1537 myErrorMessage = tr( "The style %1 was updated in the database." ).arg( uri );
1538 break;
1539 }
1540 }
1541 else
1542 {
1543 resultFlag = false;
1544 switch ( type )
1545 {
1546 case Metadata:
1547 myErrorMessage = tr( "The metadata %1 could not be updated in the database." ).arg( uri );
1548 break;
1549
1550 case Style:
1551 myErrorMessage = tr( "The style %1 could not be updated in the database." ).arg( uri );
1552 break;
1553 }
1554 }
1555 }
1556 else
1557 {
1558 resultFlag = false;
1559 switch ( type )
1560 {
1561 case Metadata:
1562 myErrorMessage = tr( "The metadata %1 could not be inserted into database." ).arg( uri );
1563 break;
1564
1565 case Style:
1566 myErrorMessage = tr( "The style %1 could not be inserted into database." ).arg( uri );
1567 break;
1568 }
1569 }
1570 }
1571 }
1572
1573 return myErrorMessage;
1574}
1575
1576QString QgsMapLayer::saveNamedStyle( const QString &uri, bool &resultFlag, StyleCategories categories )
1577{
1578 return saveNamedProperty( uri, QgsMapLayer::Style, resultFlag, categories );
1579}
1580
1581void QgsMapLayer::exportSldStyle( QDomDocument &doc, QString &errorMsg ) const
1582{
1583 QDomDocument myDocument = QDomDocument();
1584
1585 const QDomNode header = myDocument.createProcessingInstruction( QStringLiteral( "xml" ), QStringLiteral( "version=\"1.0\" encoding=\"UTF-8\"" ) );
1586 myDocument.appendChild( header );
1587
1588 const QgsVectorLayer *vlayer = qobject_cast<const QgsVectorLayer *>( this );
1589 const QgsRasterLayer *rlayer = qobject_cast<const QgsRasterLayer *>( this );
1590 if ( !vlayer && !rlayer )
1591 {
1592 errorMsg = tr( "Could not save symbology because:\n%1" )
1593 .arg( tr( "Only vector and raster layers are supported" ) );
1594 return;
1595 }
1596
1597 // Create the root element
1598 QDomElement root = myDocument.createElementNS( QStringLiteral( "http://www.opengis.net/sld" ), QStringLiteral( "StyledLayerDescriptor" ) );
1599 QDomElement layerNode;
1600 if ( vlayer )
1601 {
1602 root.setAttribute( QStringLiteral( "version" ), QStringLiteral( "1.1.0" ) );
1603 root.setAttribute( QStringLiteral( "xsi:schemaLocation" ), QStringLiteral( "http://www.opengis.net/sld http://schemas.opengis.net/sld/1.1.0/StyledLayerDescriptor.xsd" ) );
1604 root.setAttribute( QStringLiteral( "xmlns:ogc" ), QStringLiteral( "http://www.opengis.net/ogc" ) );
1605 root.setAttribute( QStringLiteral( "xmlns:se" ), QStringLiteral( "http://www.opengis.net/se" ) );
1606 root.setAttribute( QStringLiteral( "xmlns:xlink" ), QStringLiteral( "http://www.w3.org/1999/xlink" ) );
1607 root.setAttribute( QStringLiteral( "xmlns:xsi" ), QStringLiteral( "http://www.w3.org/2001/XMLSchema-instance" ) );
1608 myDocument.appendChild( root );
1609
1610 // Create the NamedLayer element
1611 layerNode = myDocument.createElement( QStringLiteral( "NamedLayer" ) );
1612 root.appendChild( layerNode );
1613 }
1614
1615 // note: Only SLD 1.0 version is generated because seems none is using SE1.1.0 at least for rasters
1616 if ( rlayer )
1617 {
1618 // Create the root element
1619 root.setAttribute( QStringLiteral( "version" ), QStringLiteral( "1.0.0" ) );
1620 root.setAttribute( QStringLiteral( "xmlns:gml" ), QStringLiteral( "http://www.opengis.net/gml" ) );
1621 root.setAttribute( QStringLiteral( "xmlns:ogc" ), QStringLiteral( "http://www.opengis.net/ogc" ) );
1622 root.setAttribute( QStringLiteral( "xmlns:sld" ), QStringLiteral( "http://www.opengis.net/sld" ) );
1623 myDocument.appendChild( root );
1624
1625 // Create the NamedLayer element
1626 layerNode = myDocument.createElement( QStringLiteral( "UserLayer" ) );
1627 root.appendChild( layerNode );
1628 }
1629
1630 QVariantMap props;
1632 {
1633 props[ QStringLiteral( "scaleMinDenom" ) ] = QString::number( mMinScale );
1634 props[ QStringLiteral( "scaleMaxDenom" ) ] = QString::number( mMaxScale );
1635 }
1636
1637 if ( vlayer )
1638 {
1639 if ( !vlayer->writeSld( layerNode, myDocument, errorMsg, props ) )
1640 {
1641 errorMsg = tr( "Could not save symbology because:\n%1" ).arg( errorMsg );
1642 return;
1643 }
1644 }
1645
1646 if ( rlayer )
1647 {
1648 if ( !rlayer->writeSld( layerNode, myDocument, errorMsg, props ) )
1649 {
1650 errorMsg = tr( "Could not save symbology because:\n%1" ).arg( errorMsg );
1651 return;
1652 }
1653 }
1654
1655 doc = myDocument;
1656}
1657
1658QString QgsMapLayer::saveSldStyle( const QString &uri, bool &resultFlag ) const
1659{
1660 const QgsMapLayer *mlayer = qobject_cast<const QgsMapLayer *>( this );
1661
1662 QString errorMsg;
1663 QDomDocument myDocument;
1664 mlayer->exportSldStyle( myDocument, errorMsg );
1665 if ( !errorMsg.isNull() )
1666 {
1667 resultFlag = false;
1668 return errorMsg;
1669 }
1670 // check if the uri is a file or ends with .sld,
1671 // which indicates that it should become one
1672 QString filename;
1673 if ( mlayer->providerType() == QLatin1String( "ogr" ) )
1674 {
1675 QStringList theURIParts = uri.split( '|' );
1676 filename = theURIParts[0];
1677 }
1678 else if ( mlayer->providerType() == QLatin1String( "gpx" ) )
1679 {
1680 QStringList theURIParts = uri.split( '?' );
1681 filename = theURIParts[0];
1682 }
1683 else if ( mlayer->providerType() == QLatin1String( "delimitedtext" ) )
1684 {
1685 filename = QUrl::fromEncoded( uri.toLatin1() ).toLocalFile();
1686 // toLocalFile() returns an empty string if theURI is a plain Windows-path, e.g. "C:/style.qml"
1687 if ( filename.isEmpty() )
1688 filename = uri;
1689 }
1690 else
1691 {
1692 filename = uri;
1693 }
1694
1695 const QFileInfo myFileInfo( filename );
1696 if ( myFileInfo.exists() || filename.endsWith( QLatin1String( ".sld" ), Qt::CaseInsensitive ) )
1697 {
1698 const QFileInfo myDirInfo( myFileInfo.path() ); //excludes file name
1699 if ( !myDirInfo.isWritable() )
1700 {
1701 return tr( "The directory containing your dataset needs to be writable!" );
1702 }
1703
1704 // now construct the file name for our .sld style file
1705 const QString myFileName = myFileInfo.path() + QDir::separator() + myFileInfo.completeBaseName() + ".sld";
1706
1707 QFile myFile( myFileName );
1708 if ( myFile.open( QFile::WriteOnly | QFile::Truncate ) )
1709 {
1710 QTextStream myFileStream( &myFile );
1711 // save as utf-8 with 2 spaces for indents
1712 myDocument.save( myFileStream, 2 );
1713 myFile.close();
1714 resultFlag = true;
1715 return tr( "Created default style file as %1" ).arg( myFileName );
1716 }
1717 }
1718
1719 resultFlag = false;
1720 return tr( "ERROR: Failed to created SLD style file as %1. Check file permissions and retry." ).arg( filename );
1721}
1722
1723QString QgsMapLayer::loadSldStyle( const QString &uri, bool &resultFlag )
1724{
1725 resultFlag = false;
1726
1727 QDomDocument myDocument;
1728
1729 // location of problem associated with errorMsg
1730 int line, column;
1731 QString myErrorMessage;
1732
1733 QFile myFile( uri );
1734 if ( myFile.open( QFile::ReadOnly ) )
1735 {
1736 // read file
1737 resultFlag = myDocument.setContent( &myFile, true, &myErrorMessage, &line, &column );
1738 if ( !resultFlag )
1739 myErrorMessage = tr( "%1 at line %2 column %3" ).arg( myErrorMessage ).arg( line ).arg( column );
1740 myFile.close();
1741 }
1742 else
1743 {
1744 myErrorMessage = tr( "Unable to open file %1" ).arg( uri );
1745 }
1746
1747 if ( !resultFlag )
1748 {
1749 return myErrorMessage;
1750 }
1751
1752 // check for root SLD element
1753 const QDomElement myRoot = myDocument.firstChildElement( QStringLiteral( "StyledLayerDescriptor" ) );
1754 if ( myRoot.isNull() )
1755 {
1756 myErrorMessage = QStringLiteral( "Error: StyledLayerDescriptor element not found in %1" ).arg( uri );
1757 resultFlag = false;
1758 return myErrorMessage;
1759 }
1760
1761 // now get the style node out and pass it over to the layer
1762 // to deserialise...
1763 const QDomElement namedLayerElem = myRoot.firstChildElement( QStringLiteral( "NamedLayer" ) );
1764 if ( namedLayerElem.isNull() )
1765 {
1766 myErrorMessage = QStringLiteral( "Info: NamedLayer element not found." );
1767 resultFlag = false;
1768 return myErrorMessage;
1769 }
1770
1771 QString errorMsg;
1772 resultFlag = readSld( namedLayerElem, errorMsg );
1773 if ( !resultFlag )
1774 {
1775 myErrorMessage = tr( "Loading style file %1 failed because:\n%2" ).arg( uri, errorMsg );
1776 return myErrorMessage;
1777 }
1778
1779 return QString();
1780}
1781
1782bool QgsMapLayer::readStyle( const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories )
1783{
1784 Q_UNUSED( node )
1785 Q_UNUSED( errorMessage )
1786 Q_UNUSED( context )
1787 Q_UNUSED( categories )
1788 return false;
1789}
1790
1791bool QgsMapLayer::writeStyle( QDomNode &node, QDomDocument &doc, QString &errorMessage,
1792 const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories ) const
1793{
1794 Q_UNUSED( node )
1795 Q_UNUSED( doc )
1796 Q_UNUSED( errorMessage )
1797 Q_UNUSED( context )
1798 Q_UNUSED( categories )
1799 return false;
1800}
1801
1802
1803void QgsMapLayer::setDataSource( const QString &dataSource, const QString &baseName, const QString &provider,
1804 bool loadDefaultStyleFlag )
1805{
1807
1808 QgsDataProvider::ReadFlags flags = QgsDataProvider::ReadFlags();
1809 if ( loadDefaultStyleFlag )
1810 {
1812 }
1813
1815 {
1817 }
1818 setDataSource( dataSource, baseName, provider, options, flags );
1819}
1820
1821void QgsMapLayer::setDataSource( const QString &dataSource, const QString &baseName, const QString &provider,
1822 const QgsDataProvider::ProviderOptions &options, bool loadDefaultStyleFlag )
1823{
1824 QgsDataProvider::ReadFlags flags = QgsDataProvider::ReadFlags();
1825 if ( loadDefaultStyleFlag )
1826 {
1828 }
1829
1831 {
1833 }
1834 setDataSource( dataSource, baseName, provider, options, flags );
1835}
1836
1837void QgsMapLayer::setDataSource( const QString &dataSource, const QString &baseName, const QString &provider,
1838 const QgsDataProvider::ProviderOptions &options, QgsDataProvider::ReadFlags flags )
1839{
1840
1843 {
1845 }
1846 setDataSourcePrivate( dataSource, baseName, provider, options, flags );
1847 emit dataSourceChanged();
1848 emit dataChanged();
1850}
1851
1852
1853void QgsMapLayer::setDataSourcePrivate( const QString &dataSource, const QString &baseName, const QString &provider,
1854 const QgsDataProvider::ProviderOptions &options, QgsDataProvider::ReadFlags flags )
1855{
1856 Q_UNUSED( dataSource )
1857 Q_UNUSED( baseName )
1858 Q_UNUSED( provider )
1859 Q_UNUSED( options )
1860 Q_UNUSED( flags )
1861}
1862
1863
1865{
1866 return mProviderKey;
1867}
1868
1869void QgsMapLayer::readCommonStyle( const QDomElement &layerElement, const QgsReadWriteContext &context,
1870 QgsMapLayer::StyleCategories categories )
1871{
1872 if ( categories.testFlag( Symbology3D ) )
1873 {
1874 const QgsReadWriteContextCategoryPopper p = context.enterCategory( tr( "3D Symbology" ) );
1875
1876 QgsAbstract3DRenderer *r3D = nullptr;
1877 QDomElement renderer3DElem = layerElement.firstChildElement( QStringLiteral( "renderer-3d" ) );
1878 if ( !renderer3DElem.isNull() )
1879 {
1880 const QString type3D = renderer3DElem.attribute( QStringLiteral( "type" ) );
1882 if ( meta3D )
1883 {
1884 r3D = meta3D->createRenderer( renderer3DElem, context );
1885 }
1886 }
1887 setRenderer3D( r3D );
1888 }
1889
1890 if ( categories.testFlag( CustomProperties ) )
1891 {
1892 // read custom properties before passing reading further to a subclass, so that
1893 // the subclass can also read custom properties
1894 readCustomProperties( layerElement );
1895 }
1896
1897 // use scale dependent visibility flag
1898 if ( categories.testFlag( Rendering ) )
1899 {
1900 setScaleBasedVisibility( layerElement.attribute( QStringLiteral( "hasScaleBasedVisibilityFlag" ) ).toInt() == 1 );
1901 if ( layerElement.hasAttribute( QStringLiteral( "minimumScale" ) ) )
1902 {
1903 // older element, when scales were reversed
1904 setMaximumScale( layerElement.attribute( QStringLiteral( "minimumScale" ) ).toDouble() );
1905 setMinimumScale( layerElement.attribute( QStringLiteral( "maximumScale" ) ).toDouble() );
1906 }
1907 else
1908 {
1909 setMaximumScale( layerElement.attribute( QStringLiteral( "maxScale" ) ).toDouble() );
1910 setMinimumScale( layerElement.attribute( QStringLiteral( "minScale" ) ).toDouble() );
1911 }
1912 }
1913
1914 if ( categories.testFlag( LayerConfiguration ) )
1915 {
1916 // flags
1917 const QDomElement flagsElem = layerElement.firstChildElement( QStringLiteral( "flags" ) );
1918 LayerFlags flags = mFlags;
1919 const auto enumMap = qgsEnumMap<QgsMapLayer::LayerFlag>();
1920 for ( auto it = enumMap.constBegin(); it != enumMap.constEnd(); ++it )
1921 {
1922 const QDomNode flagNode = flagsElem.namedItem( it.value() );
1923 if ( flagNode.isNull() )
1924 continue;
1925 const bool flagValue = flagNode.toElement().text() == "1" ? true : false;
1926 if ( flags.testFlag( it.key() ) && !flagValue )
1927 flags &= ~it.key();
1928 else if ( !flags.testFlag( it.key() ) && flagValue )
1929 flags |= it.key();
1930 }
1931 setFlags( flags );
1932 }
1933
1934 if ( categories.testFlag( Temporal ) )
1935 {
1936 const QgsReadWriteContextCategoryPopper p = context.enterCategory( tr( "Temporal" ) );
1937
1939 properties->readXml( layerElement.toElement(), context );
1940 }
1941
1942 if ( categories.testFlag( Elevation ) )
1943 {
1944 const QgsReadWriteContextCategoryPopper p = context.enterCategory( tr( "Elevation" ) );
1945
1947 properties->readXml( layerElement.toElement(), context );
1948 }
1949
1950 if ( categories.testFlag( Notes ) )
1951 {
1952 const QDomElement notesElem = layerElement.firstChildElement( QStringLiteral( "userNotes" ) );
1953 if ( !notesElem.isNull() )
1954 {
1955 const QString notes = notesElem.attribute( QStringLiteral( "value" ) );
1956 QgsLayerNotesUtils::setLayerNotes( this, notes );
1957 }
1958 }
1959}
1960
1962{
1963 return mUndoStack;
1964}
1965
1967{
1968 return mUndoStackStyles;
1969}
1970
1972{
1973 return mCustomProperties.keys();
1974}
1975
1976void QgsMapLayer::setCustomProperty( const QString &key, const QVariant &value )
1977{
1978 if ( !mCustomProperties.contains( key ) || mCustomProperties.value( key ) != value )
1979 {
1980 mCustomProperties.setValue( key, value );
1981 emit customPropertyChanged( key );
1982 }
1983}
1984
1986{
1987 mCustomProperties = properties;
1988 for ( const QString &key : mCustomProperties.keys() )
1989 {
1990 emit customPropertyChanged( key );
1991 }
1992}
1993
1995{
1996 return mCustomProperties;
1997}
1998
1999QVariant QgsMapLayer::customProperty( const QString &value, const QVariant &defaultValue ) const
2000{
2001 return mCustomProperties.value( value, defaultValue );
2002}
2003
2004void QgsMapLayer::removeCustomProperty( const QString &key )
2005{
2006
2007 if ( mCustomProperties.contains( key ) )
2008 {
2009 mCustomProperties.remove( key );
2010 emit customPropertyChanged( key );
2011 }
2012}
2013
2015{
2016 return mError;
2017}
2018
2019
2020
2022{
2023 return false;
2024}
2025
2027{
2028 return false;
2029}
2030
2032{
2033 return true;
2034}
2035
2037{
2038 // invalid layers are temporary? -- who knows?!
2039 if ( !isValid() )
2040 return false;
2041
2042 if ( mProviderKey == QLatin1String( "memory" ) )
2043 return true;
2044
2045 const QVariantMap sourceParts = QgsProviderRegistry::instance()->decodeUri( mProviderKey, mDataSource );
2046 const QString path = sourceParts.value( QStringLiteral( "path" ) ).toString();
2047 if ( path.isEmpty() )
2048 return false;
2049
2050 // check if layer path is inside one of the standard temporary file locations for this platform
2051 const QStringList tempPaths = QStandardPaths::standardLocations( QStandardPaths::TempLocation );
2052 for ( const QString &tempPath : tempPaths )
2053 {
2054 if ( path.startsWith( tempPath ) )
2055 return true;
2056 }
2057
2058 return false;
2059}
2060
2061void QgsMapLayer::setValid( bool valid )
2062{
2063 if ( mValid == valid )
2064 return;
2065
2066 mValid = valid;
2067 emit isValidChanged();
2068}
2069
2071{
2072 if ( legend == mLegend )
2073 return;
2074
2075 delete mLegend;
2076 mLegend = legend;
2077
2078 if ( mLegend )
2079 {
2080 mLegend->setParent( this );
2081 connect( mLegend, &QgsMapLayerLegend::itemsChanged, this, &QgsMapLayer::legendChanged, Qt::UniqueConnection );
2082 }
2083
2084 emit legendChanged();
2085}
2086
2088{
2089 return mLegend;
2090}
2091
2093{
2094 return mStyleManager;
2095}
2096
2098{
2099 if ( renderer == m3DRenderer )
2100 return;
2101
2102 delete m3DRenderer;
2103 m3DRenderer = renderer;
2104 emit renderer3DChanged();
2105 emit repaintRequested();
2107}
2108
2110{
2111 return m3DRenderer;
2112}
2113
2114void QgsMapLayer::triggerRepaint( bool deferredUpdate )
2115{
2116 if ( mRepaintRequestedFired )
2117 return;
2118 mRepaintRequestedFired = true;
2119 emit repaintRequested( deferredUpdate );
2120 mRepaintRequestedFired = false;
2121}
2122
2124{
2125 emit request3DUpdate();
2126}
2127
2129{
2130 mMetadata = metadata;
2131// mMetadata.saveToLayer( this );
2132 emit metadataChanged();
2133}
2134
2136{
2137 return QString();
2138}
2139
2140QDateTime QgsMapLayer::timestamp() const
2141{
2142 return QDateTime();
2143}
2144
2146{
2148 emit styleChanged();
2149}
2150
2152{
2153 updateExtent( extent );
2154}
2155
2156bool QgsMapLayer::isReadOnly() const
2157{
2158 return true;
2159}
2160
2162{
2163 return mOriginalXmlProperties;
2164}
2165
2166void QgsMapLayer::setOriginalXmlProperties( const QString &originalXmlProperties )
2167{
2168 mOriginalXmlProperties = originalXmlProperties;
2169}
2170
2171QString QgsMapLayer::generateId( const QString &layerName )
2172{
2173 // Generate the unique ID of this layer
2174 const QString uuid = QUuid::createUuid().toString();
2175 // trim { } from uuid
2176 QString id = layerName + '_' + uuid.mid( 1, uuid.length() - 2 );
2177 // Tidy the ID up to avoid characters that may cause problems
2178 // elsewhere (e.g in some parts of XML). Replaces every non-word
2179 // character (word characters are the alphabet, numbers and
2180 // underscore) with an underscore.
2181 // Note that the first backslash in the regular expression is
2182 // there for the compiler, so the pattern is actually \W
2183 id.replace( QRegularExpression( "[\\W]" ), QStringLiteral( "_" ) );
2184 return id;
2185}
2186
2188{
2189 return true;
2190}
2191
2192void QgsMapLayer::setProviderType( const QString &providerType )
2193{
2195}
2196
2197QSet<QgsMapLayerDependency> QgsMapLayer::dependencies() const
2198{
2199 return mDependencies;
2200}
2201
2202bool QgsMapLayer::setDependencies( const QSet<QgsMapLayerDependency> &oDeps )
2203{
2204 QSet<QgsMapLayerDependency> deps;
2205 const auto constODeps = oDeps;
2206 for ( const QgsMapLayerDependency &dep : constODeps )
2207 {
2208 if ( dep.origin() == QgsMapLayerDependency::FromUser )
2209 deps << dep;
2210 }
2211
2212 mDependencies = deps;
2213 emit dependenciesChanged();
2214 return true;
2215}
2216
2218{
2219 QgsDataProvider *lDataProvider = dataProvider();
2220
2221 if ( !lDataProvider )
2222 return;
2223
2224 if ( enabled && !isRefreshOnNotifyEnabled() )
2225 {
2226 lDataProvider->setListening( enabled );
2227 connect( lDataProvider, &QgsDataProvider::notify, this, &QgsMapLayer::onNotified );
2228 }
2229 else if ( !enabled && isRefreshOnNotifyEnabled() )
2230 {
2231 // we don't want to disable provider listening because someone else could need it (e.g. actions)
2232 disconnect( lDataProvider, &QgsDataProvider::notify, this, &QgsMapLayer::onNotified );
2233 }
2234 mIsRefreshOnNofifyEnabled = enabled;
2235}
2236
2238{
2239 if ( QgsMapLayerStore *store = qobject_cast<QgsMapLayerStore *>( parent() ) )
2240 {
2241 return qobject_cast<QgsProject *>( store->parent() );
2242 }
2243 return nullptr;
2244}
2245
2246void QgsMapLayer::onNotified( const QString &message )
2247{
2248 if ( refreshOnNotifyMessage().isEmpty() || refreshOnNotifyMessage() == message )
2249 {
2251 emit dataChanged();
2252 }
2253}
2254
2255QgsRectangle QgsMapLayer::wgs84Extent( bool forceRecalculate ) const
2256{
2258
2259 if ( ! forceRecalculate && ! mWgs84Extent.isNull() )
2260 {
2261 wgs84Extent = mWgs84Extent;
2262 }
2263 else if ( ! mExtent.isNull() )
2264 {
2266 transformer.setBallparkTransformsAreAppropriate( true );
2267 try
2268 {
2269 wgs84Extent = transformer.transformBoundingBox( mExtent );
2270 }
2271 catch ( const QgsCsException &cse )
2272 {
2273 QgsMessageLog::logMessage( tr( "Error transforming extent: %1" ).arg( cse.what() ) );
2275 }
2276 }
2277 return wgs84Extent;
2278}
2279
2280void QgsMapLayer::updateExtent( const QgsRectangle &extent ) const
2281{
2282 if ( extent == mExtent )
2283 return;
2284
2285 mExtent = extent;
2286
2287 // do not update the wgs84 extent if we trust layer metadata
2288 if ( mReadFlags & QgsMapLayer::ReadFlag::FlagTrustLayerMetadata )
2289 return;
2290
2291 mWgs84Extent = wgs84Extent( true );
2292}
2293
2295{
2296 // do not update the wgs84 extent if we trust layer metadata
2297 if ( mReadFlags & QgsMapLayer::ReadFlag::FlagTrustLayerMetadata )
2298 return;
2299
2300 mWgs84Extent = QgsRectangle();
2301}
2302
2304{
2305 QString metadata = QStringLiteral( "<h1>" ) + tr( "General" ) + QStringLiteral( "</h1>\n<hr>\n" ) + QStringLiteral( "<table class=\"list-view\">\n" );
2306
2307 // name
2308 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Name" ) + QStringLiteral( "</td><td>" ) + name() + QStringLiteral( "</td></tr>\n" );
2309
2310 QString path;
2311 bool isLocalPath = false;
2312 if ( dataProvider() )
2313 {
2314 // local path
2315 QVariantMap uriComponents = QgsProviderRegistry::instance()->decodeUri( dataProvider()->name(), publicSource() );
2316 if ( uriComponents.contains( QStringLiteral( "path" ) ) )
2317 {
2318 path = uriComponents[QStringLiteral( "path" )].toString();
2319 QFileInfo fi( path );
2320 if ( fi.exists() )
2321 {
2322 isLocalPath = true;
2323 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Path" ) + QStringLiteral( "</td><td>%1" ).arg( QStringLiteral( "<a href=\"%1\">%2</a>" ).arg( QUrl::fromLocalFile( path ).toString(), QDir::toNativeSeparators( path ) ) ) + QStringLiteral( "</td></tr>\n" );
2324
2325 QDateTime lastModified = fi.lastModified();
2326 QString lastModifiedFileName;
2327 QSet<QString> sidecarFiles = QgsFileUtils::sidecarFilesForPath( path );
2328 if ( fi.isFile() )
2329 {
2330 qint64 fileSize = fi.size();
2331 if ( !sidecarFiles.isEmpty() )
2332 {
2333 lastModifiedFileName = fi.fileName();
2334 QStringList sidecarFileNames;
2335 for ( const QString &sidecarFile : sidecarFiles )
2336 {
2337 QFileInfo sidecarFi( sidecarFile );
2338 fileSize += sidecarFi.size();
2339 if ( sidecarFi.lastModified() > lastModified )
2340 {
2341 lastModified = sidecarFi.lastModified();
2342 lastModifiedFileName = sidecarFi.fileName();
2343 }
2344 sidecarFileNames << sidecarFi.fileName();
2345 }
2346 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + ( sidecarFiles.size() > 1 ? tr( "Sidecar files" ) : tr( "Sidecar file" ) ) + QStringLiteral( "</td><td>%1" ).arg( sidecarFileNames.join( QLatin1String( ", " ) ) ) + QStringLiteral( "</td></tr>\n" );
2347 }
2348 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + ( !sidecarFiles.isEmpty() ? tr( "Total size" ) : tr( "Size" ) ) + QStringLiteral( "</td><td>%1" ).arg( QgsFileUtils::representFileSize( fileSize ) ) + QStringLiteral( "</td></tr>\n" );
2349 }
2350 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Last modified" ) + QStringLiteral( "</td><td>%1" ).arg( QLocale().toString( fi.lastModified() ) ) + ( !lastModifiedFileName.isEmpty() ? QStringLiteral( " (%1)" ).arg( lastModifiedFileName ) : QString() ) + QStringLiteral( "</td></tr>\n" );
2351 }
2352 }
2353 if ( uriComponents.contains( QStringLiteral( "url" ) ) )
2354 {
2355 const QString url = uriComponents[QStringLiteral( "url" )].toString();
2356 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "URL" ) + QStringLiteral( "</td><td>%1" ).arg( QStringLiteral( "<a href=\"%1\">%2</a>" ).arg( QUrl( url ).toString(), url ) ) + QStringLiteral( "</td></tr>\n" );
2357 }
2358 }
2359
2360 // data source
2361 if ( publicSource() != path || !isLocalPath )
2362 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Source" ) + QStringLiteral( "</td><td>%1" ).arg( publicSource() != path ? publicSource() : path ) + QStringLiteral( "</td></tr>\n" );
2363
2364 // provider
2365 if ( dataProvider() )
2366 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Provider" ) + QStringLiteral( "</td><td>%1" ).arg( dataProvider()->name() ) + QStringLiteral( "</td></tr>\n" );
2367
2368 metadata += QLatin1String( "</table>\n<br><br>" );
2369 return metadata;
2370}
2371
2373{
2374 QString metadata = QStringLiteral( "<h1>" ) + tr( "Coordinate Reference System (CRS)" ) + QStringLiteral( "</h1>\n<hr>\n" );
2375 metadata += QLatin1String( "<table class=\"list-view\">\n" );
2376
2377 // Identifier
2379 if ( !c.isValid() )
2380 metadata += QStringLiteral( "<tr><td colspan=\"2\" class=\"highlight\">" ) + tr( "Unknown" ) + QStringLiteral( "</td></tr>\n" );
2381 else
2382 {
2383 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Name" ) + QStringLiteral( "</td><td>" ) + c.userFriendlyIdentifier( QgsCoordinateReferenceSystem::FullString ) + QStringLiteral( "</td></tr>\n" );
2384
2385 // map units
2386 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Units" ) + QStringLiteral( "</td><td>" )
2387 + ( c.isGeographic() ? tr( "Geographic (uses latitude and longitude for coordinates)" ) : QgsUnitTypes::toString( c.mapUnits() ) )
2388 + QStringLiteral( "</td></tr>\n" );
2389
2390
2391 // operation
2392 const QgsProjOperation operation = c.operation();
2393 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Method" ) + QStringLiteral( "</td><td>" ) + operation.description() + QStringLiteral( "</td></tr>\n" );
2394
2395 // celestial body
2396 try
2397 {
2398 const QString celestialBody = c.celestialBodyName();
2399 if ( !celestialBody.isEmpty() )
2400 {
2401 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Celestial body" ) + QStringLiteral( "</td><td>" ) + celestialBody + QStringLiteral( "</td></tr>\n" );
2402 }
2403 }
2404 catch ( QgsNotSupportedException & )
2405 {
2406
2407 }
2408
2409 QString accuracyString;
2410 // dynamic crs with no epoch?
2411 if ( c.isDynamic() && std::isnan( c.coordinateEpoch() ) )
2412 {
2413 accuracyString = tr( "Based on a dynamic CRS, but no coordinate epoch is set. Coordinates are ambiguous and of limited accuracy." );
2414 }
2415
2416 // based on datum ensemble?
2417 try
2418 {
2419 const QgsDatumEnsemble ensemble = c.datumEnsemble();
2420 if ( ensemble.isValid() )
2421 {
2422 QString id;
2423 if ( !ensemble.code().isEmpty() )
2424 id = QStringLiteral( "<i>%1</i> (%2:%3)" ).arg( ensemble.name(), ensemble.authority(), ensemble.code() );
2425 else
2426 id = QStringLiteral( "<i>%</i>”" ).arg( ensemble.name() );
2427
2428 if ( ensemble.accuracy() > 0 )
2429 {
2430 accuracyString = tr( "Based on %1, which has a limited accuracy of <b>at best %2 meters</b>." ).arg( id ).arg( ensemble.accuracy() );
2431 }
2432 else
2433 {
2434 accuracyString = tr( "Based on %1, which has a limited accuracy." ).arg( id );
2435 }
2436 }
2437 }
2438 catch ( QgsNotSupportedException & )
2439 {
2440
2441 }
2442
2443 if ( !accuracyString.isEmpty() )
2444 {
2445 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Accuracy" ) + QStringLiteral( "</td><td>" ) + accuracyString + QStringLiteral( "</td></tr>\n" );
2446 }
2447
2448 // static/dynamic
2449 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Reference" ) + QStringLiteral( "</td><td>%1</td></tr>\n" ).arg( c.isDynamic() ? tr( "Dynamic (relies on a datum which is not plate-fixed)" ) : tr( "Static (relies on a datum which is plate-fixed)" ) );
2450
2451 // coordinate epoch
2452 if ( !std::isnan( c.coordinateEpoch() ) )
2453 {
2454 metadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Coordinate epoch" ) + QStringLiteral( "</td><td>%1</td></tr>\n" ).arg( c.coordinateEpoch() );
2455 }
2456 }
2457
2458 metadata += QLatin1String( "</table>\n<br><br>\n" );
2459 return metadata;
2460}
static QString version()
Version string.
Definition: qgis.cpp:277
static const double SCALE_PRECISION
Fudge factor used to compare two scales.
Definition: qgis.h:2160
@ ForceFirstLetterToCapital
Convert just the first letter of each word to uppercase, leave the rest untouched.
Base metadata class for 3D renderers.
virtual QgsAbstract3DRenderer * createRenderer(QDomElement &elem, const QgsReadWriteContext &context)=0
Returns new instance of the renderer given the DOM element.
Qgs3DRendererAbstractMetadata * rendererMetadata(const QString &type) const
Returns metadata for a 3D renderer type (may be used to create a new instance of the type)
Base class for all renderers that may to participate in 3D view.
virtual QString type() const =0
Returns unique identifier of the renderer class (used to identify subclass)
virtual void writeXml(QDomElement &elem, const QgsReadWriteContext &context) const =0
Writes renderer's properties to given XML element.
virtual void resolveReferences(const QgsProject &project)
Resolves references to other objects - second phase of loading - after readXml()
static QString pkgDataPath()
Returns the common root path of all application data directories.
static QString qgisSettingsDirPath()
Returns the path to the settings directory in user's home dir.
static QgsAuthManager * authManager()
Returns the application's authentication manager instance.
static Qgs3DRendererRegistry * renderer3DRegistry()
Returns registry of available 3D renderers.
bool setMasterPassword(bool verify=false)
Main call to initially set or continually check master password is set.
This class represents a coordinate reference system (CRS).
static QgsCoordinateReferenceSystem fromOgcWmsCrs(const QString &ogcCrs)
Creates a CRS from a given OGC WMS-format Coordinate Reference System string.
bool isValid() const
Returns whether this CRS is correctly initialized and usable.
void validate()
Perform some validation on this CRS.
static CUSTOM_CRS_VALIDATION customCrsValidation()
Gets custom function.
bool readXml(const QDomNode &node)
Restores state from the given DOM node.
static void setCustomCrsValidation(CUSTOM_CRS_VALIDATION f)
Sets custom function to force valid CRS.
void setValidationHint(const QString &html)
Set user hint for validation.
@ FullString
Full definition – possibly a very lengthy string, e.g. with no truncation of custom WKT definitions.
bool writeXml(QDomNode &node, QDomDocument &doc) const
Stores state to the given Dom node in the given document.
Contains information about the context in which a coordinate transform is executed.
Class for doing transforms between two map coordinate systems.
Custom exception class for Coordinate Reference System related exceptions.
Definition: qgsexception.h:66
Abstract base class for spatial data provider implementations.
@ FlagLoadDefaultStyle
Reset the layer's style to the default for the datasource.
@ FlagTrustDataSource
Trust datasource config (primary key unicity, geometry type and srid, etc). Improves provider load ti...
QgsCoordinateTransformContext transformContext() const
Returns data provider coordinate transform context.
virtual void setListening(bool isListening)
Set whether the provider will listen to datasource notifications If set, the provider will issue noti...
void notify(const QString &msg)
Emitted when the datasource issues a notification.
static QString removePassword(const QString &aUri)
Removes the password element from a URI.
Contains information about a datum ensemble.
Definition: qgsdatums.h:95
QString code() const
Identification code, e.g.
Definition: qgsdatums.h:122
QString authority() const
Authority name, e.g.
Definition: qgsdatums.h:117
bool isValid() const
Returns true if the datum ensemble is a valid object, or false if it is a null/invalid object.
Definition: qgsdatums.h:102
QString name() const
Display name of datum ensemble.
Definition: qgsdatums.h:107
double accuracy() const
Positional accuracy (in meters).
Definition: qgsdatums.h:112
QgsError is container for error messages (report).
Definition: qgserror.h:81
QString what() const
Definition: qgsexception.h:48
static QSet< QString > sidecarFilesForPath(const QString &path)
Returns a list of the sidecar files which exist for the dataset a the specified path.
static QString representFileSize(qint64 bytes)
Returns the human size from bytes.
A structured metadata store for a map layer.
bool readMetadataXml(const QDomElement &metadataElement) override
Sets state from DOM document.
bool writeMetadataXml(QDomElement &metadataElement, QDomDocument &document) const override
Stores state in a DOM node.
static void setLayerNotes(QgsMapLayer *layer, const QString &notes)
Sets the notes for the specified layer, where notes is a HTML formatted string.
static bool layerHasNotes(const QgsMapLayer *layer)
Returns true if the specified layer has notes available.
static QString layerNotes(const QgsMapLayer *layer)
Returns the notes for the specified layer.
This class models dependencies with or between map layers.
Base class for storage of map layer elevation properties.
The QgsMapLayerLegend class is abstract interface for implementations of legends for one map layer.
void itemsChanged()
Emitted when existing items/nodes got invalid and should be replaced by new ones.
Manages QGIS Server properties for a map layer.
void readXml(const QDomNode &layer_node)
Reads server properties from project file.
void copyTo(QgsMapLayerServerProperties *properties) const
Copy properties to another instance.
A storage object for map layers, in which the layers are owned by the store and have their lifetime b...
Management of styles for use with one map layer.
bool addStyle(const QString &name, const QgsMapLayerStyle &style)
Add a style with given name and data.
QStringList styles() const
Returns list of all defined style names.
void writeXml(QDomElement &mgrElement) const
Write configuration (for project saving)
void reset()
Reset the style manager to a basic state - with one default style which is set as current.
void readXml(const QDomElement &mgrElement)
Read configuration (for project loading)
Base class for storage of map layer temporal properties.
Base class for all map layer types.
Definition: qgsmaplayer.h:73
QString mKeywordList
Definition: qgsmaplayer.h:1951
void setShortName(const QString &shortName)
Sets the short name of the layer used by QGIS Server to identify the layer.
Definition: qgsmaplayer.h:288
bool importNamedMetadata(QDomDocument &document, QString &errorMessage)
Import the metadata of this layer from a QDomDocument.
QString name
Definition: qgsmaplayer.h:76
void readStyleManager(const QDomNode &layerNode)
Read style manager's configuration (if any). To be called by subclasses.
virtual bool writeSymbology(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) const =0
Write the style for the layer into the document provided.
QString legendUrlFormat() const
Returns the format for a URL based layer legend.
Definition: qgsmaplayer.h:1297
QgsRectangle wgs84Extent(bool forceRecalculate=false) const
Returns the WGS84 extent (EPSG:4326) of the layer according to ReadFlag::FlagTrustLayerMetadata.
void setRefreshOnNotifyEnabled(bool enabled)
Set whether provider notification is connected to triggerRepaint.
virtual bool isSpatial() const
Returns true if the layer is considered a spatial layer, ie it has some form of geometry associated w...
QgsAbstract3DRenderer * renderer3D() const
Returns 3D renderer associated with the layer.
virtual bool isTemporary() const
Returns true if the layer is considered a temporary layer.
virtual void exportNamedStyle(QDomDocument &doc, QString &errorMsg, const QgsReadWriteContext &context=QgsReadWriteContext(), QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) const
Export the properties of this layer as named style in a QDomDocument.
virtual bool accept(QgsStyleEntityVisitorInterface *visitor) const
Accepts the specified symbology visitor, causing it to visit all symbols associated with the layer.
void dependenciesChanged()
Emitted when dependencies are changed.
bool isInScaleRange(double scale) const
Tests whether the layer should be visible at the specified scale.
void legendChanged()
Signal emitted when legend of the layer has changed.
void writeStyleManager(QDomNode &layerNode, QDomDocument &doc) const
Write style manager's configuration (if exists). To be called by subclasses.
QgsMapLayerLegend * legend() const
Can be nullptr.
virtual bool importNamedStyle(QDomDocument &doc, QString &errorMsg, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories)
Import the properties of this layer from a QDomDocument.
void setAbstract(const QString &abstract)
Sets the abstract of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:318
void metadataChanged()
Emitted when the layer's metadata is changed.
virtual QgsRectangle extent() const
Returns the extent of the layer.
virtual QString saveSldStyle(const QString &uri, bool &resultFlag) const
Saves the properties of this layer to an SLD format file.
QString source() const
Returns the source for the layer.
void setLegendUrl(const QString &legendUrl)
Sets the URL for the layer's legend.
Definition: qgsmaplayer.h:1282
virtual bool setDependencies(const QSet< QgsMapLayerDependency > &layers)
Sets the list of dependencies.
void request3DUpdate()
Signal emitted when a layer requires an update in any 3D maps.
Q_INVOKABLE QVariant customProperty(const QString &value, const QVariant &defaultValue=QVariant()) const
Read a custom property from layer.
QgsError mError
Error.
Definition: qgsmaplayer.h:1966
int mBlockStyleChangedSignal
If non-zero, the styleChanged signal should not be emitted.
Definition: qgsmaplayer.h:2008
QString providerType() const
Returns the provider type (provider key) for this layer.
void removeCustomProperty(const QString &key)
Remove a custom property from layer.
void setBlendMode(QPainter::CompositionMode blendMode)
Set the blending mode used for rendering a layer.
QgsMapLayerType type
Definition: qgsmaplayer.h:80
void configChanged()
Emitted whenever the configuration is changed.
void trigger3DUpdate()
Will advise any 3D maps that this layer requires to be updated in the scene.
void autoRefreshIntervalChanged(int interval)
Emitted when the auto refresh interval changes.
void setMinimumScale(double scale)
Sets the minimum map scale (i.e.
virtual QSet< QgsMapLayerDependency > dependencies() const
Gets the list of dependencies.
void setCustomProperties(const QgsObjectCustomProperties &properties)
Set custom properties for layer.
virtual QString encodedSource(const QString &source, const QgsReadWriteContext &context) const
Called by writeLayerXML(), used by derived classes to encode provider's specific data source to proje...
QgsMapLayer(QgsMapLayerType type=QgsMapLayerType::VectorLayer, const QString &name=QString(), const QString &source=QString())
Constructor for QgsMapLayer.
Definition: qgsmaplayer.cpp:81
QString publicSource() const
Gets a version of the internal layer definition that has sensitive bits removed (for example,...
QgsMapLayer::LayerFlags flags() const
Returns the flags for this layer.
virtual void setSubLayerVisibility(const QString &name, bool visible)
Set the visibility of the given sublayer name.
void isValidChanged()
Emitted when the validity of this layer changed.
QgsCoordinateReferenceSystem crs
Definition: qgsmaplayer.h:79
bool loadNamedMetadataFromDatabase(const QString &db, const QString &uri, QString &qmd)
Retrieve a named metadata for this layer from a sqlite database.
virtual bool readXml(const QDomNode &layer_node, QgsReadWriteContext &context)
Called by readLayerXML(), used by children to read state specific to them from project files.
QgsMapLayerServerProperties * serverProperties()
Returns QGIS Server Properties for the map layer.
Definition: qgsmaplayer.h:426
QString attribution() const
Returns the attribution of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:400
void setOriginalXmlProperties(const QString &originalXmlProperties)
Sets the original XML properties for the layer to originalXmlProperties.
void writeCustomProperties(QDomNode &layerNode, QDomDocument &doc) const
Write custom properties to project file.
QString mRefreshOnNofifyMessage
Definition: qgsmaplayer.h:1979
QString mLegendUrl
WMS legend.
Definition: qgsmaplayer.h:1962
QString id() const
Returns the layer's unique ID, which is used to access this layer from QgsProject.
virtual QString loadDefaultStyle(bool &resultFlag)
Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record...
QString mLayerName
Name of the layer - used for display.
Definition: qgsmaplayer.h:1944
virtual QString loadNamedMetadata(const QString &uri, bool &resultFlag)
Retrieve a named metadata for this layer if one exists (either as a .qmd file on disk or as a record ...
virtual bool writeXml(QDomNode &layer_node, QDomDocument &document, const QgsReadWriteContext &context) const
Called by writeLayerXML(), used by children to write state specific to them to project files.
bool hasAutoRefreshEnabled() const
Returns true if auto refresh is enabled for the layer.
void triggerRepaint(bool deferredUpdate=false)
Will advise the map canvas (and any other interested party) that this layer requires to be repainted.
QString crsHtmlMetadata() const
Returns a HTML fragment containing the layer's CRS metadata, for use in the htmlMetadata() method.
void setAttributionUrl(const QString &attribUrl)
Sets the attribution URL of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:409
void setAutoRefreshEnabled(bool enabled)
Sets whether auto refresh is enabled for the layer.
void setMaximumScale(double scale)
Sets the maximum map scale (i.e.
QgsLayerMetadata metadata
Definition: qgsmaplayer.h:78
static QString formatLayerName(const QString &name)
A convenience function to capitalize and format a layer name.
void renderer3DChanged()
Signal emitted when 3D renderer associated with the layer has changed.
QString abstract() const
Returns the abstract of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:326
QString originalXmlProperties() const
Returns the XML properties of the original layer as they were when the layer was first read from the ...
QString dataUrlFormat() const
Returns the DataUrl format of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:380
QPainter::CompositionMode blendMode() const
Returns the current blending mode for a layer.
QString mTitle
Definition: qgsmaplayer.h:1947
void setDataUrl(const QString &dataUrl)
Sets the DataUrl of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:353
virtual void setOpacity(double opacity)
Sets the opacity for the layer, where opacity is a value between 0 (totally transparent) and 1....
void setKeywordList(const QString &keywords)
Sets the keyword list of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:334
void setAttribution(const QString &attrib)
Sets the attribution of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:391
void setFlags(QgsMapLayer::LayerFlags flags)
Returns the flags for this layer.
bool isRefreshOnNotifyEnabled() const
Returns true if the refresh on provider nofification is enabled.
Definition: qgsmaplayer.h:1459
QString shortName() const
Returns the short name of the layer used by QGIS Server to identify the layer.
QSet< QgsMapLayerDependency > mDependencies
List of layers that may modify this layer on modification.
Definition: qgsmaplayer.h:1969
void readCustomProperties(const QDomNode &layerNode, const QString &keyStartsWith=QString())
Read custom properties from project file.
virtual Qgis::MapLayerProperties properties() const
Returns the map layer properties of this layer.
virtual QString loadSldStyle(const QString &uri, bool &resultFlag)
Attempts to style the layer using the formatting from an SLD type file.
virtual void setMetadata(const QgsLayerMetadata &metadata)
Sets the layer's metadata store.
virtual bool readStyle(const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories)
Read the style for the current layer from the DOM node supplied.
virtual QString saveDefaultMetadata(bool &resultFlag)
Save the current metadata of this layer as the default metadata (either as a .qmd file on disk or as ...
virtual bool supportsEditing() const
Returns whether the layer supports editing or not.
void setDataUrlFormat(const QString &dataUrlFormat)
Sets the DataUrl format of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:371
QString mLegendUrlFormat
Definition: qgsmaplayer.h:1963
Q_INVOKABLE void setCustomProperty(const QString &key, const QVariant &value)
Set a custom property for layer.
QString mProviderKey
Data provider key (name of the data provider)
Definition: qgsmaplayer.h:1982
QgsCoordinateTransformContext transformContext() const
Returns the layer data provider coordinate transform context or a default transform context if the la...
void styleChanged()
Signal emitted whenever a change affects the layer's style.
virtual bool isEditable() const
Returns true if the layer can be edited.
QUndoStack * undoStack()
Returns pointer to layer's undo stack.
QString title() const
Returns the title of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:310
void crsChanged()
Emit a signal that layer's CRS has been reset.
virtual QgsError error() const
Gets current status error.
bool writeLayerXml(QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context) const
Stores state in DOM node.
virtual QString styleURI() const
Retrieve the style URI for this layer (either as a .qml file on disk or as a record in the users styl...
QString mAttributionUrl
Definition: qgsmaplayer.h:1959
void setScaleBasedVisibility(bool enabled)
Sets whether scale based visibility is enabled for the layer.
void dataSourceChanged()
Emitted whenever the layer's data source has been changed.
QString dataUrl() const
Returns the DataUrl of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:362
bool readLayerXml(const QDomElement &layerElement, QgsReadWriteContext &context, QgsMapLayer::ReadFlags flags=QgsMapLayer::ReadFlags())
Sets state from DOM document.
bool hasScaleBasedVisibility() const
Returns whether scale based visibility is enabled for the layer.
virtual QString loadNamedStyle(const QString &uri, bool &resultFlag, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories)
Retrieve a named style for this layer if one exists (either as a .qml file on disk or as a record in ...
Q_DECL_DEPRECATED QString metadataUrlFormat() const
Returns the metadata format of the layer used by QGIS Server in GetCapabilities request.
void setRefreshOnNofifyMessage(const QString &message)
Set the notification message that triggers repaint If refresh on notification is enabled,...
Definition: qgsmaplayer.h:1606
static QString generateId(const QString &layerName)
Generates an unique identifier for this layer, the generate ID is prefixed by layerName.
void opacityChanged(double opacity)
Emitted when the layer's opacity is changed, where opacity is a value between 0 (transparent) and 1 (...
virtual bool isModified() const
Returns true if the layer has been modified since last commit/save.
void emitStyleChanged()
Triggers an emission of the styleChanged() signal.
virtual QgsMapLayerTemporalProperties * temporalProperties()
Returns the layer's temporal properties.
Definition: qgsmaplayer.h:1502
QString mShortName
Definition: qgsmaplayer.h:1946
QUndoStack * undoStackStyles()
Returns pointer to layer's style undo stack.
void dataChanged()
Data of layer changed.
virtual QStringList subLayers() const
Returns the sublayers of this layer.
virtual QString htmlMetadata() const
Obtain a formatted HTML string containing assorted metadata for this layer.
Q_DECL_DEPRECATED void setMetadataUrlFormat(const QString &metaUrlFormat)
Sets the metadata format of the layer used by QGIS Server in GetCapabilities request.
virtual bool loadNamedStyleFromDatabase(const QString &db, const QString &uri, QString &qml)
Retrieve a named style for this layer from a sqlite database.
static QString extensionPropertyType(PropertyType type)
Returns the extension of a Property.
Definition: qgsmaplayer.cpp:68
virtual QgsMapLayer * clone() const =0
Returns a new instance equivalent to this one except for the id which is still unique.
void blendModeChanged(QPainter::CompositionMode blendMode)
Signal emitted when the blend mode is changed, through QgsMapLayer::setBlendMode()
void setName(const QString &name)
Set the display name of the layer.
void setAutoRefreshInterval(int interval)
Sets the auto refresh interval (in milliseconds) for the layer.
virtual bool readSymbology(const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories)=0
Read the symbology for the current layer from the DOM node supplied.
Q_DECL_DEPRECATED QString metadataUrl() const
Returns the metadata URL of the layer used by QGIS Server in GetCapabilities request.
virtual void setExtent(const QgsRectangle &rect)
Sets the extent.
virtual void resolveReferences(QgsProject *project)
Resolve references to other layers (kept as layer IDs after reading XML) into layer objects.
QString saveNamedMetadata(const QString &uri, bool &resultFlag)
Save the current metadata of this layer as a named metadata (either as a .qmd file on disk or as a re...
bool isValid
Definition: qgsmaplayer.h:81
QString mDataSource
Data source description string, varies by layer type.
Definition: qgsmaplayer.h:1941
QString refreshOnNotifyMessage() const
Returns the message that should be notified by the provider to triggerRepaint.
Definition: qgsmaplayer.h:1452
virtual bool readSld(const QDomNode &node, QString &errorMessage)
Definition: qgsmaplayer.h:1160
virtual QString loadDefaultMetadata(bool &resultFlag)
Retrieve the default metadata for this layer if one exists (either as a .qmd file on disk or as a rec...
@ FlagReadExtentFromXml
Read extent from xml and skip get extent from provider.
Definition: qgsmaplayer.h:642
@ FlagTrustLayerMetadata
Trust layer metadata. Improves layer load time by skipping expensive checks like primary key unicity,...
Definition: qgsmaplayer.h:641
void setValid(bool valid)
Sets whether layer is valid or not.
QString attributionUrl() const
Returns the attribution URL of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:418
void readCommonStyle(const QDomElement &layerElement, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories)
Read style data common to all layer types.
QString mAbstract
Description of the layer.
Definition: qgsmaplayer.h:1950
void customPropertyChanged(const QString &key)
Emitted when a custom property of the layer has been changed or removed.
QgsMapLayer::ReadFlags mReadFlags
Read flags. It's up to the subclass to respect these when restoring state from XML.
Definition: qgsmaplayer.h:1987
void setDataSource(const QString &dataSource, const QString &baseName, const QString &provider, bool loadDefaultStyleFlag=false)
Updates the data source of the layer.
double minimumScale() const
Returns the minimum map scale (i.e.
QgsMapLayerStyleManager * styleManager() const
Gets access to the layer's style manager.
QString legendUrl() const
Returns the URL for the layer's legend.
Definition: qgsmaplayer.h:1287
QString mDataUrlFormat
Definition: qgsmaplayer.h:1955
void flagsChanged()
Emitted when layer's flags have been modified.
void repaintRequested(bool deferredUpdate=false)
By emitting this signal the layer tells that either appearance or content have been changed and any v...
void setLegendUrlFormat(const QString &legendUrlFormat)
Sets the format for a URL based layer legend.
Definition: qgsmaplayer.h:1292
void exportNamedMetadata(QDomDocument &doc, QString &errorMsg) const
Export the current metadata of this layer as named metadata in a QDomDocument.
virtual QString saveNamedStyle(const QString &uri, bool &resultFlag, StyleCategories categories=AllStyleCategories)
Save the properties of this layer as a named style (either as a .qml file on disk or as a record in t...
virtual void exportSldStyle(QDomDocument &doc, QString &errorMsg) const
Export the properties of this layer as SLD style in a QDomDocument.
void beforeResolveReferences(QgsProject *project)
Emitted when all layers are loaded and references can be resolved, just before the references of this...
Q_DECL_DEPRECATED void setMetadataUrl(const QString &metaUrl)
Sets the metadata URL of the layer used by QGIS Server in GetCapabilities request.
virtual QgsMapLayerElevationProperties * elevationProperties()
Returns the layer's elevation properties.
Definition: qgsmaplayer.h:1509
Q_INVOKABLE QStringList customPropertyKeys() const
Returns list of all keys within custom properties.
QgsProject * project() const
Returns the parent project if this map layer is added to a project.
Q_DECL_DEPRECATED void setMetadataUrlType(const QString &metaUrlType)
Set the metadata type of the layer used by QGIS Server in GetCapabilities request MetadataUrlType ind...
void setLegend(QgsMapLayerLegend *legend)
Assign a legend controller to the map layer.
double opacity
Definition: qgsmaplayer.h:82
virtual QString decodedSource(const QString &source, const QString &dataProvider, const QgsReadWriteContext &context) const
Called by readLayerXML(), used by derived classes to decode provider's specific data source from proj...
void nameChanged()
Emitted when the name has been changed.
virtual QString metadataUri() const
Retrieve the metadata URI for this layer (either as a .qmd file on disk or as a record in the users s...
int autoRefreshInterval
Definition: qgsmaplayer.h:77
virtual bool writeStyle(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) const
Write just the symbology information for the layer into the document.
bool mIsRefreshOnNofifyEnabled
Definition: qgsmaplayer.h:1978
QString mDataUrl
DataUrl of the layer.
Definition: qgsmaplayer.h:1954
virtual Q_INVOKABLE QgsDataProvider * dataProvider()
Returns the layer's data provider, it may be nullptr.
double mLayerOpacity
Layer opacity.
Definition: qgsmaplayer.h:2001
bool mValid
Indicates if the layer is valid and can be drawn.
Definition: qgsmaplayer.h:1938
@ AllStyleCategories
Definition: qgsmaplayer.h:178
@ LayerConfiguration
General configuration: identifiable, removable, searchable, display expression, read-only.
Definition: qgsmaplayer.h:160
@ Symbology
Symbology.
Definition: qgsmaplayer.h:161
@ Notes
Layer user notes (since QGIS 3.20)
Definition: qgsmaplayer.h:177
@ Temporal
Temporal properties (since QGIS 3.14)
Definition: qgsmaplayer.h:174
@ Rendering
Rendering: scale visibility, simplify method, opacity.
Definition: qgsmaplayer.h:170
@ Elevation
Elevation settings (since QGIS 3.18)
Definition: qgsmaplayer.h:176
@ Symbology3D
3D symbology
Definition: qgsmaplayer.h:162
@ CustomProperties
Custom properties (by plugins for instance)
Definition: qgsmaplayer.h:171
virtual QDateTime timestamp() const
Time stamp of data source in the moment when data/metadata were loaded by provider.
void setProviderType(const QString &providerType)
Sets the providerType (provider key)
virtual QString saveDefaultStyle(bool &resultFlag, StyleCategories categories)
Save the properties of this layer as the default style (either as a .qml file on disk or as a record ...
void setRenderer3D(QgsAbstract3DRenderer *renderer)
Sets 3D renderer for the layer.
QString mAttribution
Attribution of the layer.
Definition: qgsmaplayer.h:1958
~QgsMapLayer() override
Definition: qgsmaplayer.cpp:99
const QgsObjectCustomProperties & customProperties() const
Read all custom properties from layer.
QString generalHtmlMetadata() const
Returns an HTML fragment containing general metadata information, for use in the htmlMetadata() metho...
Q_DECL_DEPRECATED QString metadataUrlType() const
Returns the metadata type of the layer used by QGIS Server in GetCapabilities request.
void writeCommonStyle(QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) const
Write style data common to all layer types.
double maximumScale() const
Returns the maximum map scale (i.e.
QString keywordList() const
Returns the keyword list of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:342
virtual void setLayerOrder(const QStringList &layers)
Reorders the previously selected sublayers of this layer from bottom to top.
void invalidateWgs84Extent()
Invalidates the WGS84 extent.
void setTitle(const QString &title)
Sets the title of the layer used by QGIS Server in GetCapabilities request.
Definition: qgsmaplayer.h:302
PropertyType
Maplayer has a style and a metadata property.
Definition: qgsmaplayer.h:133
bool mShouldValidateCrs
true if the layer's CRS should be validated and invalid CRSes are not permitted.
Definition: qgsmaplayer.h:1994
void setCrs(const QgsCoordinateReferenceSystem &srs, bool emitSignal=true)
Sets layer's spatial reference system.
static void logMessage(const QString &message, const QString &tag=QString(), Qgis::MessageLevel level=Qgis::MessageLevel::Warning, bool notifyUser=true)
Adds a message to the log instance (and creates it if necessary).
Custom exception class which is raised when an operation is not supported.
Definition: qgsexception.h:118
Simple key-value store (keys = strings, values = variants) that supports loading/saving to/from XML i...
void setValue(const QString &key, const QVariant &value)
Add an entry to the store with the specified key.
QStringList keys() const
Returns a list of all stored keys.
void writeXml(QDomNode &parentNode, QDomDocument &doc) const
Writes the store contents to an XML node.
void remove(const QString &key)
Removes a key (entry) from the store.
QVariant value(const QString &key, const QVariant &defaultValue=QVariant()) const
Returns the value for the given key.
void readXml(const QDomNode &parentNode, const QString &keyStartsWith=QString())
Read store contents from an XML node.
bool contains(const QString &key) const
Returns true if the properties contains a key with the specified name.
QString writePath(const QString &filename) const
Prepare a filename to save it to the project file.
QString readPath(const QString &filename) const
Turn filename read from the project file to an absolute path.
Contains information about a PROJ operation.
QString description() const
Description.
Class to convert from older project file versions to newer.
bool updateRevision(const QgsProjectVersion &version)
virtual QString translate(const QString &context, const QString &sourceText, const char *disambiguation=nullptr, int n=-1) const =0
The derived translate() translates with QTranslator and qm file the sourceText.
A class to describe the version of a project.
Encapsulates a QGIS project, including sets of map layers and their styles, layouts,...
Definition: qgsproject.h:104
bool removeAttachedFile(const QString &path)
Removes the attached file.
static QgsProject * instance()
Returns the QgsProject singleton instance.
Definition: qgsproject.cpp:480
QString baseName() const
Returns the base name of the project file without the path and without extension - derived from fileN...
Definition: qgsproject.cpp:834
QString absoluteFilePath() const
Returns full absolute path to the project file if the project is stored in a file system - derived fr...
Definition: qgsproject.cpp:823
Holds data provider key, description, and associated shared library file or function pointer informat...
@ SaveLayerMetadata
Indicates that the provider supports saving native layer metadata (since QGIS 3.20)
QVariantMap decodeUri(const QString &providerKey, const QString &uri)
Breaks a provider data source URI into its component paths (e.g.
static QgsProviderRegistry * instance(const QString &pluginPath=QString())
Means of accessing canonical single instance.
bool saveLayerMetadata(const QString &providerKey, const QString &uri, const QgsLayerMetadata &metadata, QString &errorMessage) SIP_THROW(QgsNotSupportedException)
Saves metadata to the layer corresponding to the specified uri.
Represents a raster layer.
bool writeSld(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QVariantMap &props=QVariantMap()) const
Writes the symbology of the layer into the document provided in SLD 1.0.0 format.
Allows entering a context category and takes care of leaving this category on deletion of the class.
The class is used as a container of context for various read/write operations on other objects.
MAYBE_UNUSED NODISCARD QgsReadWriteContextCategoryPopper enterCategory(const QString &category, const QString &details=QString()) const
Push a category to the stack.
const QgsProjectTranslator * projectTranslator() const
Returns the project translator.
const QgsPathResolver & pathResolver() const
Returns path resolver for conversion between relative and absolute paths.
A rectangle specified with double values.
Definition: qgsrectangle.h:42
bool isNull() const
Test if the rectangle is null (all coordinates zero or after call to setMinimal()).
Definition: qgsrectangle.h:479
void setMetadataUrls(const QList< QgsServerMetadataUrlProperties::MetadataUrl > &metaUrls)
Sets a the list of metadata URL for the layer.
QList< QgsServerMetadataUrlProperties::MetadataUrl > metadataUrls() const
Returns a list of metadataUrl resources associated for the layer.
static QString capitalize(const QString &string, Qgis::Capitalization capitalization)
Converts a string by applying capitalization rules to the string.
An interface for classes which can visit style entity (e.g.
static Q_INVOKABLE QString toString(QgsUnitTypes::DistanceUnit unit)
Returns a translated string representing a distance unit.
Represents a vector layer which manages a vector based data sets.
Q_INVOKABLE QgsWkbTypes::GeometryType geometryType() const
Returns point, line or polygon.
bool writeSld(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QVariantMap &props=QVariantMap()) const
Writes the symbology of the layer into the document provided in SLD 1.1 format.
GeometryType
The geometry types are used to group QgsWkbTypes::Type in a coarse way.
Definition: qgswkbtypes.h:141
static T readFlagAttribute(const QDomElement &element, const QString &attributeName, T defaultValue)
Read a flag value from an attribute of the element.
Definition: qgsxmlutils.h:99
static QDomElement writeRectangle(const QgsRectangle &rect, QDomDocument &doc, const QString &elementName=QStringLiteral("extent"))
Encodes a rectangle to a DOM element.
Definition: qgsxmlutils.cpp:81
static QgsRectangle readRectangle(const QDomElement &element)
Definition: qgsxmlutils.cpp:39
Unique pointer for sqlite3 databases, which automatically closes the database when the pointer goes o...
sqlite3_statement_unique_ptr prepare(const QString &sql, int &resultCode) const
Prepares a sql statement, returning the result.
int open(const QString &path)
Opens the database at the specified file path.
int open_v2(const QString &path, int flags, const char *zVfs)
Opens the database at the specified file path.
Unique pointer for sqlite3 prepared statements, which automatically finalizes the statement when the ...
QgsMapLayerType
Types of layers that can be added to a map.
Definition: qgis.h:47
@ VectorLayer
Vector layer.
@ AnnotationLayer
Contains freeform, georeferenced annotations. Added in QGIS 3.16.
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
bool qgsDoubleNear(double a, double b, double epsilon=4 *std::numeric_limits< double >::epsilon())
Compare two doubles (but allow some difference)
Definition: qgis.h:2404
CONSTLATIN1STRING geoEpsgCrsAuthId()
Geographic coord sys from EPSG authority.
Definition: qgis.h:2871
void(* CUSTOM_CRS_VALIDATION)(QgsCoordinateReferenceSystem &)
#define QgsDebugMsgLevel(str, level)
Definition: qgslogger.h:39
Setting options for creating vector data providers.
QString format
Format specification of online resource.