41 d =
new QgsFeaturePrivate(
id );
46 d =
new QgsFeaturePrivate(
id );
67 if ( !( d->fid == other.d->fid
68 && d->valid == other.d->valid
69 && d->fields == other.d->fields
70 && d->attributes == other.d->attributes
71 && d->symbol == other.d->symbol ) )
75 if ( d->geometry.isNull() && other.d->geometry.isNull() )
77 else if ( d->geometry.isNull() || other.d->geometry.isNull() )
79 else if ( !d->geometry.equals( other.d->geometry ) )
87 return !( *
this == other );
108 d->attributes.remove( field );
134 return d->attributes;
140 const int fieldSize = d->fields.size();
141 const int attributeSize = d->attributes.size();
142 if ( fieldSize != attributeSize )
144 QgsDebugError( QStringLiteral(
"Attribute size (%1) does not match number of fields (%2)" ).arg( attributeSize ).arg( fieldSize ) );
145 return QVariantMap();
148 for (
int i = 0; i < attributeSize; ++i )
150 res[d->fields.at( i ).name()] = d->attributes.at( i );
157 return d->attributes.size();
163 d->attributes = attrs;
183 if ( d->geometry.isNull() && d->valid )
223 if ( d->valid == validity )
232 return !d->geometry.isNull();
238 d->attributes.resize( 0 );
241 d->attributes.resize( fieldCount );
246 if ( fieldCount == d->attributes.size() )
250 d->attributes.resize( fieldCount );
259 d->attributes.resize( d->attributes.size() + count );
264 if ( idx < 0 || idx >= d->attributes.size() )
271 d->attributes[idx] = value;
285 if ( fieldIdx == -1 )
289 d->attributes[fieldIdx] = value;
297 if ( fieldIdx == -1 )
301 d->attributes[fieldIdx].clear();
307 if ( fieldIdx < 0 || fieldIdx >= d->attributes.count() )
310 return d->attributes.at( fieldIdx );
315 if ( fieldIdx < 0 || fieldIdx >= d->attributes.count() )
318 return d->attributes.at( fieldIdx ).userType() == qMetaTypeId<QgsUnsetAttributeValue>();
323 return d->symbol.get();
328 if ( symbol == d->symbol.get() )
332 d->symbol.reset( symbol );
338 if ( fieldIdx == -1 )
341 return d->attributes.at( fieldIdx );
352 return d->fields.lookupField( fieldName );
355static size_t qgsQStringApproximateMemoryUsage(
const QString &
str )
357 return sizeof( QString ) +
str.size() *
sizeof( QChar );
360static size_t qgsQVariantApproximateMemoryUsage(
const QVariant &v )
364 size_t s =
sizeof( QVariant ) +
sizeof(
long long ) +
sizeof( int );
365 if ( v.userType() == QMetaType::Type::QString )
367 s += qgsQStringApproximateMemoryUsage( v.toString() );
369 else if ( v.userType() == QMetaType::Type::QStringList )
371 for (
const QString &
str : v.toStringList() )
372 s += qgsQStringApproximateMemoryUsage(
str );
374 else if ( v.userType() == QMetaType::Type::QVariantList )
376 for (
const QVariant &subV : v.toList() )
377 s += qgsQVariantApproximateMemoryUsage( subV );
384 size_t s =
sizeof( *this ) +
sizeof( *d );
387 for (
const QVariant &attr : std::as_const( d->attributes ) )
389 s += qgsQVariantApproximateMemoryUsage( attr );
393 s +=
sizeof( QAtomicInt ) +
sizeof(
void * );
396 s += d->geometry.wkbSize();
399 s +=
sizeof( QgsFieldsPrivate );
401 s += d->fields.size() * (
sizeof(
QgsField ) +
sizeof( QgsFieldPrivate ) );
403 return static_cast<int>( s );
436 in >>
id >> attr >> geometry >> valid;
447 const auto constAttributes = key.
attributes();
448 for (
const QVariant &attr : constAttributes )
450 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)