17#include "moc_qgsfeature.cpp"
42 d =
new QgsFeaturePrivate(
id );
47 d =
new QgsFeaturePrivate(
id );
68 if ( !( d->fid == other.d->fid
69 && d->valid == other.d->valid
70 && d->fields == other.d->fields
71 && d->attributes == other.d->attributes
72 && d->symbol == other.d->symbol ) )
76 if ( d->geometry.isNull() && other.d->geometry.isNull() )
78 else if ( d->geometry.isNull() || other.d->geometry.isNull() )
80 else if ( !d->geometry.equals( other.d->geometry ) )
88 return !( *
this == other );
109 d->attributes.remove( field );
135 return d->attributes;
141 const int fieldSize = d->fields.size();
142 const int attributeSize = d->attributes.size();
143 if ( fieldSize != attributeSize )
145 QgsDebugError( QStringLiteral(
"Attribute size (%1) does not match number of fields (%2)" ).arg( attributeSize ).arg( fieldSize ) );
146 return QVariantMap();
149 for (
int i = 0; i < attributeSize; ++i )
151 res[d->fields.at( i ).name()] = d->attributes.at( i );
158 return d->attributes.size();
164 d->attributes = attrs;
184 if ( d->geometry.isNull() && d->valid )
224 if ( d->valid == validity )
233 return !d->geometry.isNull();
239 d->attributes.resize( 0 );
242 d->attributes.resize( fieldCount );
247 if ( fieldCount == d->attributes.size() )
251 d->attributes.resize( fieldCount );
260 d->attributes.resize( d->attributes.size() + count );
265 if ( idx < 0 || idx >= d->attributes.size() )
272 d->attributes[idx] = value;
286 if ( fieldIdx == -1 )
290 d->attributes[fieldIdx] = value;
298 if ( fieldIdx == -1 )
302 d->attributes[fieldIdx].clear();
308 if ( fieldIdx < 0 || fieldIdx >= d->attributes.count() )
311 return d->attributes.at( fieldIdx );
316 if ( fieldIdx < 0 || fieldIdx >= d->attributes.count() )
319 return d->attributes.at( fieldIdx ).userType() == qMetaTypeId<QgsUnsetAttributeValue>();
324 return d->symbol.get();
329 if ( symbol == d->symbol.get() )
333 d->symbol.reset( symbol );
339 if ( fieldIdx == -1 )
342 return d->attributes.at( fieldIdx );
353 return d->fields.lookupField( fieldName );
356static size_t qgsQStringApproximateMemoryUsage(
const QString &
str )
358 return sizeof( QString ) +
str.size() *
sizeof( QChar );
361static size_t qgsQVariantApproximateMemoryUsage(
const QVariant &v )
365 size_t s =
sizeof( QVariant ) +
sizeof(
long long ) +
sizeof( int );
366 if ( v.userType() == QMetaType::Type::QString )
368 s += qgsQStringApproximateMemoryUsage( v.toString() );
370 else if ( v.userType() == QMetaType::Type::QStringList )
372 for (
const QString &
str : v.toStringList() )
373 s += qgsQStringApproximateMemoryUsage(
str );
375 else if ( v.userType() == QMetaType::Type::QVariantList )
377 for (
const QVariant &subV : v.toList() )
378 s += qgsQVariantApproximateMemoryUsage( subV );
385 size_t s =
sizeof( *this ) +
sizeof( *d );
388 for (
const QVariant &attr : std::as_const( d->attributes ) )
390 s += qgsQVariantApproximateMemoryUsage( attr );
394 s +=
sizeof( QAtomicInt ) +
sizeof(
void * );
397 s += d->geometry.wkbSize();
400 s +=
sizeof( QgsFieldsPrivate );
402 s += d->fields.size() * (
sizeof(
QgsField ) +
sizeof( QgsFieldPrivate ) );
404 return static_cast<int>( s );
437 in >>
id >> attr >> geometry >> valid;
448 const auto constAttributes = key.
attributes();
449 for (
const QVariant &attr : constAttributes )
451 hash ^=
qHash( attr.toString() );
@ Warning
Warning message.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Q_INVOKABLE bool setAttribute(int field, const QVariant &attr)
Sets an attribute's value by field index.
void resizeAttributes(int fieldCount)
Resizes the attributes attached to this feature to the given number of fields.
bool operator!=(const QgsFeature &other) const
int fieldNameIndex(const QString &fieldName) const
Utility method to get attribute index from name.
void initAttributes(int fieldCount)
Initialize this feature with the given number of fields.
void deleteAttribute(int field)
Clear's an attribute's value by its index.
QgsFeature & operator=(const QgsFeature &rhs)
int approximateMemoryUsage() const
Returns the approximate RAM usage of the feature, in bytes.
void setAttributes(const QgsAttributes &attrs)
Sets the feature's attributes.
bool operator==(const QgsFeature &other) const
void setFields(const QgsFields &fields, bool initAttributes=false)
Assigns a field map with the feature to allow attribute access by attribute name.
QgsFeature(QgsFeatureId id=FID_NULL)
Constructor for QgsFeature.
int attributeCount() const
Returns the number of attributes attached to the feature.
void padAttributes(int count)
Resizes the attributes attached to this feature by appending the specified count of NULL values to th...
const QgsSymbol * embeddedSymbol() const
Returns the feature's embedded symbology, or nullptr if the feature has no embedded symbol.
void setId(QgsFeatureId id)
Sets the feature id for this feature.
void setEmbeddedSymbol(QgsSymbol *symbol)
Sets the feature's embedded symbol.
void clearGeometry()
Removes any geometry associated with the feature.
void setValid(bool validity)
Sets the validity of the feature.
bool hasGeometry() const
Returns true if the feature has an associated geometry.
bool isUnsetValue(int fieldIdx) const
Returns true if the attribute at the specified index is an unset value.
bool isValid() const
Returns the validity of this feature.
Q_INVOKABLE QVariant attribute(const QString &name) const
Lookup attribute value by attribute name.
void setGeometry(const QgsGeometry &geometry)
Set the feature's geometry.
QVariantMap attributeMap() const
Returns the feature's attributes as a map of field name to value.
Encapsulate a field in an attribute table or data source.
Container of fields for a vector layer.
A geometry is the spatial representation of a feature.
Q_INVOKABLE QString asWkt(int precision=17) const
Exports the geometry to WKT.
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).
Abstract base class for all rendered symbols.
uint qHash(const QgsFeature &key, uint seed)
QDataStream & operator<<(QDataStream &out, const QgsFeature &feature)
Writes the feature to stream out. QGIS version compatibility is not guaranteed.
QDataStream & operator>>(QDataStream &in, QgsFeature &feature)
Reads a feature from stream in into feature. QGIS version compatibility is not guaranteed.
qint64 QgsFeatureId
64 bit feature ids negative numbers are used for uncommitted/newly added features
#define QgsDebugError(str)