QGIS API Documentation  3.16.0-Hannover (43b64b13f3)
qgslayermetadataformatter.cpp
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1 /***************************************************************************
2  qgslayermetadataformatter.cpp
3  ---------------------
4  begin : September 2017
5  copyright : (C) 2017 by Etienne Trimaille
6  email : etienne.trimaille at gmail dot com
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15 #include <QStringBuilder>
16 #include <QDateTime>
17 
18 #include "qgslayermetadataformatter.h"
19 #include "qgslayermetadata.h"
20 
21 
22 QgsLayerMetadataFormatter::QgsLayerMetadataFormatter( const QgsLayerMetadata &metadata )
23  : mMetadata( metadata )
24 {
25 }
26 
27 QString QgsLayerMetadataFormatter::accessSectionHtml() const
28 {
29  QString myMetadata = QStringLiteral( "<table class=\"list-view\">\n" );
30  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Fees" ) + QStringLiteral( "</td><td>" ) + mMetadata.fees() + QStringLiteral( "</td></tr>\n" );
31  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Licenses" ) + QStringLiteral( "</td><td>" ) + mMetadata.licenses().join( QLatin1String( "<br />" ) ) + QStringLiteral( "</td></tr>\n" );
32  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Rights" ) + QStringLiteral( "</td><td>" ) + mMetadata.rights().join( QLatin1String( "<br />" ) ) + QStringLiteral( "</td></tr>\n" );
33  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Constraints" ) + QStringLiteral( "</td><td>" );
34  const QList<QgsLayerMetadata::Constraint> &constraints = mMetadata.constraints();
35  bool notFirstRow = false;
36  for ( const QgsLayerMetadata::Constraint &constraint : constraints )
37  {
38  if ( notFirstRow )
39  {
40  myMetadata += QLatin1String( "<br />" );
41  }
42  myMetadata += QStringLiteral( "<strong>" ) + constraint.type + QStringLiteral( ": </strong>" ) + constraint.constraint;
43  notFirstRow = true;
44  }
45  mMetadata.rights().join( QLatin1String( "<br />" ) );
46  myMetadata += QLatin1String( "</td></tr>\n" );
47  myMetadata += QLatin1String( "</table>\n" );
48  return myMetadata;
49 }
50 
51 QString QgsLayerMetadataFormatter::contactsSectionHtml() const
52 {
53  const QList<QgsAbstractMetadataBase::Contact> &contacts = mMetadata.contacts();
54  QString myMetadata;
55  if ( contacts.isEmpty() )
56  {
57  myMetadata += QStringLiteral( "<p>" ) + tr( "No contact yet." ) + QStringLiteral( "</p>" );
58  }
59  else
60  {
61  myMetadata += QLatin1String( "<table width=\"100%\" class=\"tabular-view\">\n" );
62  myMetadata += QLatin1String( "<tr><th>" ) + tr( "ID" ) + QLatin1String( "</th><th>" ) + tr( "Name" ) + QLatin1String( "</th><th>" ) + tr( "Position" ) + QLatin1String( "</th><th>" ) + tr( "Organization" ) + QLatin1String( "</th><th>" ) + tr( "Role" ) + QLatin1String( "</th><th>" ) + tr( "Email" ) + QLatin1String( "</th><th>" ) + tr( "Voice" ) + QLatin1String( "</th><th>" ) + tr( "Fax" ) + QLatin1String( "</th><th>" ) + tr( "Addresses" ) + QLatin1String( "</th></tr>\n" );
63  int i = 1;
64  for ( const QgsAbstractMetadataBase::Contact &contact : contacts )
65  {
66  QString rowClass;
67  if ( i % 2 )
68  rowClass = QStringLiteral( "class=\"odd-row\"" );
69  myMetadata += QLatin1String( "<tr " ) + rowClass + QLatin1String( "><td>" ) + QString::number( i ) + QLatin1String( "</td><td>" ) + contact.name + QLatin1String( "</td><td>" ) + contact.position + QLatin1String( "</td><td>" ) + contact.organization + QLatin1String( "</td><td>" ) + contact.role + QLatin1String( "</td><td>" ) + contact.email + QLatin1String( "</td><td>" ) + contact.voice + QLatin1String( "</td><td>" ) + contact.fax + QLatin1String( "</td><td>" );
70  bool notFirstRow = false;
71  for ( const QgsAbstractMetadataBase::Address &oneAddress : contact.addresses )
72  {
73  if ( notFirstRow )
74  {
75  myMetadata += QLatin1String( "<br />\n" );
76  }
77  if ( ! oneAddress.type.isEmpty() )
78  {
79  myMetadata += oneAddress.type + QStringLiteral( "<br />" );
80  }
81  if ( ! oneAddress.address.isEmpty() )
82  {
83  myMetadata += oneAddress.address + QStringLiteral( "<br />" );
84  }
85  if ( ! oneAddress.postalCode.isEmpty() )
86  {
87  myMetadata += oneAddress.postalCode + QStringLiteral( "<br />" );
88  }
89  if ( ! oneAddress.city.isEmpty() )
90  {
91  myMetadata += oneAddress.city + QStringLiteral( "<br />" );
92  }
93  if ( ! oneAddress.administrativeArea.isEmpty() )
94  {
95  myMetadata += oneAddress.administrativeArea + QStringLiteral( "<br />" );
96  }
97  if ( ! oneAddress.country.isEmpty() )
98  {
99  myMetadata += oneAddress.country;
100  }
101  notFirstRow = true;
102  }
103  myMetadata += QLatin1String( "</td></tr>\n" );
104  i++;
105  }
106  myMetadata += QLatin1String( "</table>\n" );
107  }
108  return myMetadata;
109 }
110 
111 QString QgsLayerMetadataFormatter::extentSectionHtml( const bool showSpatialExtent ) const
112 {
113  const QgsLayerMetadata::Extent extent = mMetadata.extent();
114  bool notFirstRow = false;
115  QString myMetadata = QStringLiteral( "<table class=\"list-view\">\n" );
116  if ( showSpatialExtent )
117  {
118  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "CRS" ) + QStringLiteral( "</td><td>" );
119  if ( mMetadata.crs().isValid() )
120  {
121  myMetadata += mMetadata.crs().userFriendlyIdentifier() + QStringLiteral( " - " );
122  if ( mMetadata.crs().isGeographic() )
123  myMetadata += tr( "Geographic" );
124  else
125  myMetadata += tr( "Projected" );
126  }
127  myMetadata += QLatin1String( "</td></tr>\n" );
128 
129  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Spatial Extent" ) + QStringLiteral( "</td><td>" );
130  const QList< QgsLayerMetadata::SpatialExtent > spatialExtents = extent.spatialExtents();
131  for ( const QgsLayerMetadata::SpatialExtent &spatialExtent : spatialExtents )
132  {
133  if ( notFirstRow )
134  {
135  myMetadata += QLatin1String( "<br />\n" );
136  }
137  myMetadata += QStringLiteral( "<strong>" ) + tr( "CRS" ) + QStringLiteral( ": </strong>" ) + spatialExtent.extentCrs.userFriendlyIdentifier() + QStringLiteral( " - " );
138  if ( spatialExtent.extentCrs.isGeographic() )
139  myMetadata += tr( "Geographic" );
140  else
141  myMetadata += tr( "Projected" );
142  myMetadata += QLatin1String( "<br />" );
143  myMetadata += QStringLiteral( "<strong>" ) + tr( "X Minimum:" ) + QStringLiteral( " </strong>" ) + qgsDoubleToString( spatialExtent.bounds.xMinimum() ) + QStringLiteral( "<br />" );
144  myMetadata += QStringLiteral( "<strong>" ) + tr( "Y Minimum:" ) + QStringLiteral( " </strong>" ) + qgsDoubleToString( spatialExtent.bounds.yMinimum() ) + QStringLiteral( "<br />" );
145  myMetadata += QStringLiteral( "<strong>" ) + tr( "X Maximum:" ) + QStringLiteral( " </strong>" ) + qgsDoubleToString( spatialExtent.bounds.xMaximum() ) + QStringLiteral( "<br />" );
146  myMetadata += QStringLiteral( "<strong>" ) + tr( "Y Maximum:" ) + QStringLiteral( " </strong>" ) + qgsDoubleToString( spatialExtent.bounds.yMaximum() ) + QStringLiteral( "<br />" );
147  if ( spatialExtent.bounds.zMinimum() || spatialExtent.bounds.zMaximum() )
148  {
149  myMetadata += QStringLiteral( "<strong>" ) + tr( "Z Minimum:" ) + QStringLiteral( " </strong>" ) + qgsDoubleToString( spatialExtent.bounds.zMinimum() ) + QStringLiteral( "<br />" );
150  myMetadata += QStringLiteral( "<strong>" ) + tr( "Z Maximum:" ) + QStringLiteral( " </strong>" ) + qgsDoubleToString( spatialExtent.bounds.zMaximum() );
151  }
152  notFirstRow = true;
153  }
154  myMetadata += QLatin1String( "</td></tr>\n" );
155  }
156  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Temporal Extent" ) + QStringLiteral( "</td><td>" );
157  const QList< QgsDateTimeRange > temporalExtents = extent.temporalExtents();
158  notFirstRow = false;
159  for ( const QgsDateTimeRange &temporalExtent : temporalExtents )
160  {
161  if ( notFirstRow )
162  {
163  myMetadata += QLatin1String( "<br />\n" );
164  }
165  if ( temporalExtent.isInstant() )
166  {
167  myMetadata += QStringLiteral( "<strong>" ) + tr( "Instant:" ) + QStringLiteral( " </strong>" ) + temporalExtent.begin().toTimeSpec( Qt::OffsetFromUTC ).toString( Qt::ISODate );
168  }
169  else
170  {
171  myMetadata += QStringLiteral( "<strong>" ) + tr( "Start:" ) + QStringLiteral( " </strong>" ) + temporalExtent.begin().toTimeSpec( Qt::OffsetFromUTC ).toString( Qt::ISODate ) + QStringLiteral( "<br />\n" );
172  myMetadata += QStringLiteral( "<strong>" ) + tr( "End:" ) + QStringLiteral( " </strong>" ) + temporalExtent.end().toTimeSpec( Qt::OffsetFromUTC ).toString( Qt::ISODate );
173  }
174  notFirstRow = true;
175  }
176  myMetadata += QLatin1String( "</td></tr>\n" );
177  myMetadata += QLatin1String( "</table>\n" );
178  return myMetadata;
179 }
180 
181 QString QgsLayerMetadataFormatter::identificationSectionHtml() const
182 {
183  QString myMetadata = QStringLiteral( "<table class=\"list-view\">\n" );
184 
185  // Identifier
186  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Identifier" ) + QStringLiteral( "</td><td>" ) + mMetadata.identifier() + QStringLiteral( "</td></tr>\n" );
187 
188  // Parent Identifier
189  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Parent Identifier" ) + QStringLiteral( "</td><td>" ) + mMetadata.parentIdentifier() + QStringLiteral( "</td></tr>\n" );
190 
191  // Title
192  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Title" ) + QStringLiteral( "</td><td>" ) + mMetadata.title() + QStringLiteral( "</td></tr>\n" );
193 
194  // Type
195  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Type" ) + QStringLiteral( "</td><td>" ) + mMetadata.type() + QStringLiteral( "</td></tr>\n" );
196 
197  // Language
198  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Language" ) + QStringLiteral( "</td><td>" ) + mMetadata.language() + QStringLiteral( "</td></tr>\n" );
199 
200  // Abstract
201  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Abstract" ) + QStringLiteral( "</td><td>" ) + mMetadata.abstract() + QStringLiteral( "</td></tr>\n" );
202 
203  // Categories
204  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Categories" ) + QStringLiteral( "</td><td>" ) + mMetadata.categories().join( QLatin1String( ", " ) ) + QStringLiteral( "</td></tr>\n" );
205 
206  // Keywords
207  myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Keywords" ) + QStringLiteral( "</td><td>\n" );
208  QMapIterator<QString, QStringList> i( mMetadata.keywords() );
209  if ( i.hasNext() )
210  {
211  myMetadata += QLatin1String( "<table width=\"100%\" class=\"tabular-view\">\n" );
212  myMetadata += QLatin1String( "<tr><th>" ) + tr( "Vocabulary" ) + QLatin1String( "</th><th>" ) + tr( "Items" ) + QLatin1String( "</th></tr>\n" );
213  int j = 1;
214  while ( i.hasNext() )
215  {
216  i.next();
217  QString rowClass;
218  if ( j % 2 )
219  rowClass = QStringLiteral( "class=\"odd-row\"" );
220  myMetadata += QLatin1String( "<tr " ) + rowClass + QLatin1String( "><td>" ) + i.key() + QLatin1String( "</td><td>" ) + i.value().join( QLatin1String( ", " ) ) + QLatin1String( "</td></tr>\n" );
221  j++;
222  }
223  myMetadata += QLatin1String( "</table>\n" ); // End keywords table
224  }
225  myMetadata += QLatin1String( "</td></tr>\n" ); // End of keywords row
226  myMetadata += QLatin1String( "</table>\n" ); // End identification table
227  return myMetadata;
228 }
229 
230 QString QgsLayerMetadataFormatter::historySectionHtml() const
231 {
232  QString myMetadata;
233  const QStringList historyItems = mMetadata.history();
234  if ( historyItems.isEmpty() )
235  {
236  myMetadata += QStringLiteral( "<p>" ) + tr( "No history yet." ) + QStringLiteral( "</p>\n" );
237  }
238  else
239  {
240  myMetadata += QLatin1String( "<table width=\"100%\" class=\"tabular-view\">\n" );
241  myMetadata += QLatin1String( "<tr><th>" ) + tr( "ID" ) + QLatin1String( "</th><th>" ) + tr( "Action" ) + QLatin1String( "</th></tr>\n" );
242  int i = 1;
243  for ( const QString &history : historyItems )
244  {
245  QString rowClass;
246  if ( i % 2 )
247  rowClass = QStringLiteral( "class=\"odd-row\"" );
248  myMetadata += QLatin1String( "<tr " ) + rowClass + QLatin1String( "><td width=\"5%\">" ) + QString::number( i ) + QLatin1String( "</td><td>" ) + history + QLatin1String( "</td></tr>\n" );
249  i++;
250  }
251  myMetadata += QLatin1String( "</table>\n" );
252  }
253  return myMetadata;
254 }
255 
256 QString QgsLayerMetadataFormatter::linksSectionHtml() const
257 {
258  QString myMetadata;
259  const QList<QgsAbstractMetadataBase::Link> &links = mMetadata.links();
260  if ( links.isEmpty() )
261  {
262  myMetadata += QStringLiteral( "<p>" ) + tr( "No links yet." ) + QStringLiteral( "</p>\n" );
263  }
264  else
265  {
266  myMetadata += QLatin1String( "<table width=\"100%\" class=\"tabular-view\">\n" );
267  myMetadata += QLatin1String( "<tr><th>" ) + tr( "ID" ) + QLatin1String( "</th><th>" ) + tr( "Name" ) + QLatin1String( "</th><th>" ) + tr( "Type" ) + QLatin1String( "</th><th>" ) + tr( "URL" ) + QLatin1String( "</th><th>" ) + tr( "Description" ) + QLatin1String( "</th><th>" ) + tr( "Format" ) + QLatin1String( "</th><th>" ) + tr( "MIME Type" ) + QLatin1String( "</th><th>" ) + tr( "Size" ) + QLatin1String( "</th></tr>\n" );
268  int i = 1;
269  for ( const QgsAbstractMetadataBase::Link &link : links )
270  {
271  QString rowClass;
272  if ( i % 2 )
273  rowClass = QStringLiteral( "class=\"odd-row\"" );
274  myMetadata += QLatin1String( "<tr " ) + rowClass + QLatin1String( "><td>" ) + QString::number( i ) + QLatin1String( "</td><td>" ) + link.name + QLatin1String( "</td><td>" ) + link.type + QLatin1String( "</td><td>" ) + link.url + QLatin1String( "</td><td>" ) + link.description + QLatin1String( "</td><td>" ) + link.format + QLatin1String( "</td><td>" ) + link.mimeType + QLatin1String( "</td><td>" ) + link.size + QLatin1String( "</td></tr>\n" );
275  i++;
276  }
277  myMetadata += QLatin1String( "</table>\n" );
278  }
279  return myMetadata;
280 }
QgsAbstractMetadataBase::history
QStringList history() const
Returns a freeform description of the history or lineage of the resource.
Definition: qgsabstractmetadatabase.cpp:71
QgsAbstractMetadataBase::type
QString type() const
Returns the nature of the resource.
Definition: qgsabstractmetadatabase.cpp:41
QgsCoordinateReferenceSystem::userFriendlyIdentifier
QString userFriendlyIdentifier(IdentifierType type=MediumString) const
Returns a user friendly identifier for the CRS.
Definition: qgscoordinatereferencesystem.cpp:1338
QgsLayerMetadata::SpatialExtent
Metadata spatial extent structure.
Definition: qgslayermetadata.h:64
QgsLayerMetadata::constraints
QgsLayerMetadata::ConstraintList constraints() const
Returns a list of constraints associated with using the resource.
Definition: qgslayermetadata.cpp:41
QgsLayerMetadataFormatter::historySectionHtml
QString historySectionHtml() const
Formats the "History" section according to a metadata object.
Definition: qgslayermetadataformatter.cpp:230
QgsAbstractMetadataBase::Address::city
QString city
City or locality name.
Definition: qgsabstractmetadatabase.h:113
QgsLayerMetadata
A structured metadata store for a map layer.
Definition: qgslayermetadata.h:57
QgsLayerMetadata::Extent::spatialExtents
QList< QgsLayerMetadata::SpatialExtent > spatialExtents() const
Spatial extents of the resource.
Definition: qgslayermetadata.cpp:359
QgsAbstractMetadataBase::Address::country
QString country
Free-form country string.
Definition: qgsabstractmetadatabase.h:128
QgsAbstractMetadataBase::categories
QStringList categories() const
Returns categories of the resource.
Definition: qgsabstractmetadatabase.cpp:116
QgsLayerMetadata::fees
QString fees() const
Returns any fees associated with using the resource.
Definition: qgslayermetadata.cpp:26
QgsLayerMetadataFormatter::contactsSectionHtml
QString contactsSectionHtml() const
Formats the "Contacts" section according to a metadata object.
Definition: qgslayermetadataformatter.cpp:51
QgsAbstractMetadataBase::title
QString title() const
Returns the human readable name of the resource, typically displayed in search results.
Definition: qgsabstractmetadatabase.cpp:51
qgsDoubleToString
QString qgsDoubleToString(double a, int precision=17)
Returns a string representation of a double.
Definition: qgis.h:275
QgsLayerMetadataFormatter::linksSectionHtml
QString linksSectionHtml() const
Formats the "Links" section according to a metadata object.
Definition: qgslayermetadataformatter.cpp:256
QgsLayerMetadata::crs
QgsCoordinateReferenceSystem crs() const
Returns the coordinate reference system described by the layer's metadata.
Definition: qgslayermetadata.cpp:81
qgslayermetadata.h
QgsCoordinateReferenceSystem::isGeographic
bool isGeographic
Definition: qgscoordinatereferencesystem.h:210
QgsLayerMetadata::licenses
QStringList licenses() const
Returns a list of licenses associated with the resource (examples: http://opendefinition....
Definition: qgslayermetadata.cpp:61
QgsAbstractMetadataBase::abstract
QString abstract() const
Returns a free-form description of the resource.
Definition: qgsabstractmetadatabase.cpp:61
QgsAbstractMetadataBase::Address::administrativeArea
QString administrativeArea
Administrative area (state, province/territory, etc.).
Definition: qgsabstractmetadatabase.h:118
QgsAbstractMetadataBase::contacts
QgsAbstractMetadataBase::ContactList contacts() const
Returns a list of contact persons or entities associated with the resource.
Definition: qgsabstractmetadatabase.cpp:133
QgsLayerMetadata::rights
QStringList rights() const
Returns a list of attribution or copyright strings associated with the resource.
Definition: qgslayermetadata.cpp:51
QgsAbstractMetadataBase::Address::postalCode
QString postalCode
Postal (or ZIP) code.
Definition: qgsabstractmetadatabase.h:123
QgsLayerMetadata::Extent::temporalExtents
QList< QgsDateTimeRange > temporalExtents() const
Temporal extents of the resource.
Definition: qgslayermetadata.cpp:369
QgsAbstractMetadataBase::Address
Metadata address structure.
Definition: qgsabstractmetadatabase.h:86
QgsCoordinateReferenceSystem::isValid
bool isValid() const
Returns whether this CRS is correctly initialized and usable.
Definition: qgscoordinatereferencesystem.cpp:924
QgsLayerMetadataFormatter::QgsLayerMetadataFormatter
QgsLayerMetadataFormatter(const QgsLayerMetadata &metadata)
Constructor for QgsLayerMetadataFormatter.
Definition: qgslayermetadataformatter.cpp:22
QgsAbstractMetadataBase::Address::type
QString type
Type of address, e.g.
Definition: qgsabstractmetadatabase.h:103
QgsLayerMetadata::Extent
Metadata extent structure.
Definition: qgslayermetadata.h:91
QgsAbstractMetadataBase::Address::address
QString address
Free-form physical address component, e.g.
Definition: qgsabstractmetadatabase.h:108
QgsLayerMetadata::extent
const QgsLayerMetadata::Extent & extent() const
Returns the spatial and temporal extents associated with the resource.
Definition: qgslayermetadata.cpp:344
QgsAbstractMetadataBase::links
QgsAbstractMetadataBase::LinkList links() const
Returns a list of online resources associated with the resource.
Definition: qgsabstractmetadatabase.cpp:148
qgslayermetadataformatter.h
QgsAbstractMetadataBase::language
QString language() const
Returns the human language associated with the resource.
Definition: qgsabstractmetadatabase.cpp:163
QgsLayerMetadata::Constraint
Metadata constraint structure.
Definition: qgslayermetadata.h:137
QgsAbstractMetadataBase::Contact
Metadata contact structure.
Definition: qgsabstractmetadatabase.h:139
QgsAbstractMetadataBase::parentIdentifier
QString parentIdentifier() const
A reference, URI, URL or some other mechanism to identify the parent resource that this resource is a...
Definition: qgsabstractmetadatabase.cpp:31
QgsLayerMetadataFormatter::extentSectionHtml
QString extentSectionHtml(const bool showSpatialExtent=true) const
Formats the "Extents" section according to a metadata object (extent and temporal).
Definition: qgslayermetadataformatter.cpp:111
QgsAbstractMetadataBase::identifier
QString identifier() const
A reference, URI, URL or some other mechanism to identify the resource.
Definition: qgsabstractmetadatabase.cpp:21
QgsLayerMetadataFormatter::accessSectionHtml
QString accessSectionHtml() const
Formats the "Access" section according to a metadata object.
Definition: qgslayermetadataformatter.cpp:27
QgsAbstractMetadataBase::keywords
QgsAbstractMetadataBase::KeywordMap keywords() const
Returns the keywords map, which is a set of descriptive keywords associated with the resource.
Definition: qgsabstractmetadatabase.cpp:86
QgsLayerMetadataFormatter::identificationSectionHtml
QString identificationSectionHtml() const
Formats the "Identification" section according to a metadata object.
Definition: qgslayermetadataformatter.cpp:181
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