#include <qgsstyle.h>

Inheritance diagram for QgsStyle:

Public Types
enum	StyleEntity { SymbolEntity, TagEntity, ColorrampEntity, SmartgroupEntity, TextFormatEntity, LabelSettingsEntity }
	Enum for Entities involved in a style. More...

Signals
void	entityTagsChanged (QgsStyle::StyleEntity entity, const QString &name, const QStringList &newTags)
	Emitted whenever an entity's tags are changed. More...

void	favoritedChanged (QgsStyle::StyleEntity entity, const QString &name, bool isFavorite)
	Emitted whenever an entity is either favorited or un-favorited. More...

void	groupsModified ()
	Emitted every time a tag or smartgroup has been added, removed, or renamed. More...

void	labelSettingsAdded (const QString &name)
	Emitted whenever label settings have been added to the style and the database has been updated as a result. More...

void	labelSettingsChanged (const QString &name)
	Emitted whenever a label setting's definition is changed. More...

void	labelSettingsRemoved (const QString &name)
	Emitted whenever label settings have been removed from the style and the database has been updated as a result. More...

void	labelSettingsRenamed (const QString &oldName, const QString &newName)
	Emitted whenever label settings have been renamed from oldName to newName. More...

void	rampAdded (const QString &name)
	Emitted whenever a color ramp has been added to the style and the database has been updated as a result. More...

void	rampChanged (const QString &name)
	Emitted whenever a color ramp's definition is changed. More...

void	rampRemoved (const QString &name)
	Emitted whenever a color ramp has been removed from the style and the database has been updated as a result. More...

void	rampRenamed (const QString &oldName, const QString &newName)
	Emitted whenever a color ramp has been renamed from oldName to newName. More...

void	symbolChanged (const QString &name)
	Emitted whenever a symbol's definition is changed. More...

void	symbolRemoved (const QString &name)
	Emitted whenever a symbol has been removed from the style and the database has been updated as a result. More...

void	symbolRenamed (const QString &oldName, const QString &newName)
	Emitted whenever a symbol has been renamed from oldName to newName. More...

void	symbolSaved (const QString &name, QgsSymbol *symbol)
	Emitted every time a new symbol has been added to the database. More...

void	textFormatAdded (const QString &name)
	Emitted whenever a text format has been added to the style and the database has been updated as a result. More...

void	textFormatChanged (const QString &name)
	Emitted whenever a text format's definition is changed. More...

void	textFormatRemoved (const QString &name)
	Emitted whenever a text format has been removed from the style and the database has been updated as a result. More...

void	textFormatRenamed (const QString &oldName, const QString &newName)
	Emitted whenever a text format has been renamed from oldName to newName. More...

Public Member Functions
	QgsStyle ()=default
	Constructor for QgsStyle. More...

	~QgsStyle () override

bool	addColorRamp (const QString &name, QgsColorRamp *colorRamp, bool update=false)
	Adds a color ramp to the style. More...

bool	addEntity (const QString &name, const QgsStyleEntityInterface *entity, bool update=false)
	Adds an entity to the style, with the specified name. More...

bool	addFavorite (StyleEntity type, const QString &name)
	Adds the specified symbol to favorites. More...

bool	addLabelSettings (const QString &name, const QgsPalLayerSettings &settings, bool update=false)
	Adds label settings with the specified name to the style. More...

int	addSmartgroup (const QString &name, const QString &op, const QgsSmartConditionMap &conditions)
	Adds a new smartgroup to the database and returns the id. More...

int	addSmartgroup (const QString &name, const QString &op, const QStringList &matchTag, const QStringList &noMatchTag, const QStringList &matchName, const QStringList &noMatchName)
	Adds a new smartgroup to the database and returns the id. More...

bool	addSymbol (const QString &name, QgsSymbol *symbol, bool update=false)
	Adds a symbol to style and takes symbol's ownership. More...

int	addTag (const QString &tagName)
	Adds a new tag and returns the tag's id. More...

bool	addTextFormat (const QString &name, const QgsTextFormat &format, bool update=false)
	Adds a text format with the specified name to the style. More...

QStringList	allNames (StyleEntity type) const
	Returns a list of the names of all existing entities of the specified type. More...

void	clear ()
	Removes all contents of the style. More...

QgsColorRamp *	colorRamp (const QString &name) const
	Returns a new copy of the specified color ramp. More...

int	colorRampCount ()
	Returns count of color ramps. More...

int	colorrampId (const QString &name)
	Returns the id in the style database for the given colorramp name returns 0 if not found. More...

QStringList	colorRampNames () const
	Returns a list of names of color ramps. More...

const QgsColorRamp *	colorRampRef (const QString &name) const
	Returns a const pointer to a symbol (doesn't create new instance) More...

bool	createDatabase (const QString &filename)
	Creates an on-disk database. More...

bool	createMemoryDatabase ()
	Creates a temporary memory database. More...

void	createTables ()
	Creates tables structure for new database. More...

bool	detagSymbol (StyleEntity type, const QString &symbol, const QStringList &tags)
	Detags the symbol with the given list. More...

bool	detagSymbol (StyleEntity type, const QString &symbol)
	Clears the symbol from all attached tags. More...

QString	errorString ()
	Returns last error from load/save operation. More...

bool	exportXml (const QString &filename)
	Exports the style as a XML file. More...

QString	fileName ()
	Returns current file name of the style. More...

QStringList	findSymbols (StyleEntity type, const QString &qword)
	Returns the names of the symbols which have a matching 'substring' in its definition. More...

bool	importXml (const QString &filename)
	Imports the symbols and colorramps into the default style database from the given XML file. More...

bool	isFavorite (StyleEntity type, const QString &name)
	Returns `true` if the symbol with matching type and name is marked as a favorite. More...

QgsPalLayerSettings	labelSettings (const QString &name) const
	Returns the label settings with the specified name. More...

int	labelSettingsCount () const
	Returns count of label settings in the style. More...

int	labelSettingsId (const QString &name)
	Returns the ID in the style database for the given label settings by name. More...

QgsWkbTypes::GeometryType	labelSettingsLayerType (const QString &name) const
	Returns the layer geometry type corresponding to the label settings with the specified name, or QgsWkbTypes::UnknownGeometry if matching label settings are not present. More...

QStringList	labelSettingsNames () const
	Returns a list of names of label settings in the style. More...

bool	load (const QString &filename)
	Loads a file into the style. More...

bool	remove (StyleEntity type, int id)
	Removes the specified entity from the db. More...

bool	removeColorRamp (const QString &name)
	Removes color ramp from style (and delete it) More...

bool	removeFavorite (StyleEntity type, const QString &name)
	Removes the specified symbol from favorites. More...

bool	removeLabelSettings (const QString &name)
	Removes label settings from the style. More...

bool	removeSymbol (const QString &name)
	Removes symbol from style (and delete it) More...

bool	removeTextFormat (const QString &name)
	Removes a text format from the style. More...

bool	rename (StyleEntity type, int id, const QString &newName)
	Renames the given entity with the specified id. More...

bool	renameColorRamp (const QString &oldName, const QString &newName)
	Changes ramp's name. More...

bool	renameLabelSettings (const QString &oldName, const QString &newName)
	Changes a label setting's name. More...

bool	renameSymbol (const QString &oldName, const QString &newName)
	Renames a symbol from oldName to newName. More...

bool	renameTextFormat (const QString &oldName, const QString &newName)
	Changes a text format's name. More...

bool	save (QString filename=QString())
	Saves style into a file (will use current filename if empty string is passed) More...

bool	saveColorRamp (const QString &name, QgsColorRamp *ramp, bool favorite, const QStringList &tags)
	Adds the colorramp to the DB. More...

bool	saveLabelSettings (const QString &name, const QgsPalLayerSettings &settings, bool favorite, const QStringList &tags)
	Adds label settings to the database. More...

bool	saveSymbol (const QString &name, QgsSymbol *symbol, bool favorite, const QStringList &tags)
	Adds the symbol to the DB with the tags. More...

bool	saveTextFormat (const QString &name, const QgsTextFormat &format, bool favorite, const QStringList &tags)
	Adds a text format to the database. More...

QgsSmartConditionMap	smartgroup (int id)
	Returns the QgsSmartConditionMap for the given id. More...

int	smartgroupId (const QString &smartgroup)
	Returns the DB id for the given smartgroup name. More...

QStringList	smartgroupNames () const
	Returns the smart groups list. More...

QString	smartgroupOperator (int id)
	Returns the operator for the smartgroup clumsy implementation TODO create a class for smartgroups. More...

QgsSymbolGroupMap	smartgroupsListMap ()
	Returns the smart groups map with id as key and name as value. More...

QgsSymbol *	symbol (const QString &name)
	Returns a NEW copy of symbol. More...

int	symbolCount ()
	Returns count of symbols in style. More...

bool	symbolHasTag (StyleEntity type, const QString &symbol, const QString &tag)
	Returns whether a given tag is associated with the symbol. More...

int	symbolId (const QString &name)
	Returns the id in the style database for the given symbol name returns 0 if not found. More...

QStringList	symbolNames () const
	Returns a list of names of symbols. More...

const QgsSymbol *	symbolRef (const QString &name) const
	Returns a const pointer to a symbol (doesn't create new instance) More...

QStringList	symbolsOfFavorite (StyleEntity type) const
	Returns the symbol names which are flagged as favorite. More...

QStringList	symbolsOfSmartgroup (StyleEntity type, int id)
	Returns the symbols for the smartgroup. More...

QStringList	symbolsWithTag (StyleEntity type, int tagid) const
	Returns the symbol names with which have the given tag. More...

QString	tag (int id) const
	Returns the tag name for the given id. More...

int	tagId (const QString &tag)
	Returns the DB id for the given tag name. More...

QStringList	tags () const
	Returns a list of all tags in the style database. More...

QStringList	tagsOfSymbol (StyleEntity type, const QString &symbol)
	Returns the tags associated with the symbol. More...

bool	tagSymbol (StyleEntity type, const QString &symbol, const QStringList &tags)
	Tags the symbol with the tags in the list. More...

QgsTextFormat	textFormat (const QString &name) const
	Returns the text format with the specified name. More...

int	textFormatCount () const
	Returns count of text formats in the style. More...

int	textFormatId (const QString &name)
	Returns the ID in the style database for the given text format by name. More...

QStringList	textFormatNames () const
	Returns a list of names of text formats in the style. More...

Static Public Member Functions
static void	cleanDefaultStyle ()
	Deletes the default style. Only to be used by QgsApplication::exitQgis() More...

static QgsStyle *	defaultStyle ()
	Returns default application-wide style. More...

static bool	isXmlStyleFile (const QString &path)
	Tests if the file at path is a QGIS style XML file. More...

Detailed Description

Definition at line 158 of file qgsstyle.h.

Member Enumeration Documentation

◆ StyleEntity

enum QgsStyle::StyleEntity

Enum for Entities involved in a style.

The enumerator is used for identifying the entity being operated on when generic database functions are being run.

See also: rename(), remove(), symbolsOfFavorite(), symbolsWithTag(), symbolsOfSmartgroup()

Enumerator
SymbolEntity	Symbols.
TagEntity	Tags.
ColorrampEntity	Color ramps.
SmartgroupEntity	Smart groups.
TextFormatEntity	Text formats.
LabelSettingsEntity	Label settings.

Definition at line 177 of file qgsstyle.h.

Constructor & Destructor Documentation

◆ QgsStyle()

QgsStyle::QgsStyle ( )

default

Constructor for QgsStyle.

◆ ~QgsStyle()

QgsStyle::~QgsStyle ( )

override

Definition at line 41 of file qgsstyle.cpp.

Member Function Documentation

◆ addColorRamp()

bool QgsStyle::addColorRamp	(	const QString &	name,
		QgsColorRamp *	colorRamp,
		bool	update = `false`
	)

Adds a color ramp to the style.

Calling this method takes the ramp's ownership.

Note: Adding a color ramp with the name of existing one replaces it.

Parameters

name	is the name of the color ramp being added or updated
colorRamp	is the color ramp. Ownership is transferred.
update	set to `true` when the style DB has to be updated, by default it is `false`

Returns: success status of the operation

Definition at line 236 of file qgsstyle.cpp.

◆ addEntity()

bool QgsStyle::addEntity	(	const QString &	name,
		const QgsStyleEntityInterface *	entity,
		bool	update = `false`
	)

Adds an entity to the style, with the specified name.

Ownership is not transferred.

If update is true then the style database is updated automatically as a result.

Returns true if the add operation was successful.

Note: Adding an entity with the name of existing one replaces the existing one automatically.

Since: QGIS 3.10

Definition at line 46 of file qgsstyle.cpp.

◆ addFavorite()

bool QgsStyle::addFavorite	(	StyleEntity	type,
		const QString &	name
	)

Adds the specified symbol to favorites.

Parameters

type	is either SymbolEntity of ColorrampEntity
name	is the name of the symbol or coloramp whose is to be added to favorites

Returns: returns the success state as bool

Definition at line 1189 of file qgsstyle.cpp.

◆ addLabelSettings()

bool QgsStyle::addLabelSettings	(	const QString &	name,
		const QgsPalLayerSettings &	settings,
		bool	update = `false`
	)

Adds label settings with the specified name to the style.

If update is set to true, the style DB will be automatically updated with the new text format.

Returns true if the operation was successful.

Note: Adding label settings with the name of existing ones replaces them.

Since: QGIS 3.10

Definition at line 281 of file qgsstyle.cpp.

◆ addSmartgroup() [1/2]

int QgsStyle::addSmartgroup	(	const QString &	name,
		const QString &	op,
		const QgsSmartConditionMap &	conditions
	)

Adds a new smartgroup to the database and returns the id.

Parameters

name	is the name of the new Smart Group to be added
op	is the operator between the conditions; AND/OR as QString
conditions	are the smart group conditions

Note: Not available from Python bindings

Definition at line 2111 of file qgsstyle.cpp.

◆ addSmartgroup() [2/2]

int QgsStyle::addSmartgroup	(	const QString &	name,
		const QString &	op,
		const QStringList &	matchTag,
		const QStringList &	noMatchTag,
		const QStringList &	matchName,
		const QStringList &	noMatchName
	)

Adds a new smartgroup to the database and returns the id.

Parameters

name	is the name of the new Smart Group to be added
op	is the operator between the conditions; AND/OR as QString
matchTag	list of strings to match within tags
noMatchTag	list of strings to exclude matches from tags
matchName	list of string to match within names
noMatchName	list of strings to exclude matches from names

Since: QGIS 3.4

Definition at line 2119 of file qgsstyle.cpp.

◆ addSymbol()

bool QgsStyle::addSymbol	(	const QString &	name,
		QgsSymbol *	symbol,
		bool	update = `false`
	)

Adds a symbol to style and takes symbol's ownership.

Note: Adding a symbol with the name of existing one replaces it.

Parameters

name	is the name of the symbol being added or updated
symbol	is the Vector symbol
update	set to `true` when the style DB has to be updated, by default it is `false`

Returns: success status of the operation

Definition at line 124 of file qgsstyle.cpp.

◆ addTag()

int QgsStyle::addTag ( const QString & tagName )

Adds a new tag and returns the tag's id.

Parameters

tagName the name of the new tag to be created

Returns: returns an int, which is the DB id of the new tag created, 0 if the tag couldn't be created

Definition at line 1012 of file qgsstyle.cpp.

◆ addTextFormat()

bool QgsStyle::addTextFormat	(	const QString &	name,
		const QgsTextFormat &	format,
		bool	update = `false`
	)

Adds a text format with the specified name to the style.

If update is set to true, the style DB will be automatically updated with the new text format.

Returns true if the operation was successful.

Note: Adding a text format with the name of existing one replaces it.

Since: QGIS 3.10

Definition at line 260 of file qgsstyle.cpp.

◆ allNames()

QStringList QgsStyle::allNames ( QgsStyle::StyleEntity type ) const

Returns a list of the names of all existing entities of the specified type.

Since: QGIS 3.10

Definition at line 2086 of file qgsstyle.cpp.

◆ cleanDefaultStyle()

void QgsStyle::cleanDefaultStyle ( )

static

Deletes the default style. Only to be used by QgsApplication::exitQgis()

Definition at line 99 of file qgsstyle.cpp.

◆ clear()

void QgsStyle::clear ( )

Removes all contents of the style.

Definition at line 105 of file qgsstyle.cpp.

◆ colorRamp()

QgsColorRamp * QgsStyle::colorRamp ( const QString & name ) const

Returns a new copy of the specified color ramp.

The caller takes responsibility for deleting the returned object.

Definition at line 356 of file qgsstyle.cpp.

◆ colorRampCount()

int QgsStyle::colorRampCount ( )

Returns count of color ramps.

Definition at line 367 of file qgsstyle.cpp.

◆ colorrampId()

int QgsStyle::colorrampId ( const QString & name )

Returns the id in the style database for the given colorramp name returns 0 if not found.

Definition at line 2023 of file qgsstyle.cpp.

◆ colorRampNames()

QStringList QgsStyle::colorRampNames ( ) const

Returns a list of names of color ramps.

Definition at line 372 of file qgsstyle.cpp.

◆ colorRampRef()

const QgsColorRamp * QgsStyle::colorRampRef ( const QString & name ) const

Returns a const pointer to a symbol (doesn't create new instance)

Definition at line 362 of file qgsstyle.cpp.

◆ createDatabase()

bool QgsStyle::createDatabase ( const QString & filename )

Creates an on-disk database.

This function creates a new on-disk permanent style database.

Returns: returns the success state of the database creation

See also: createMemoryDatabase()

Since: QGIS 3.0

Definition at line 389 of file qgsstyle.cpp.

◆ createMemoryDatabase()

bool QgsStyle::createMemoryDatabase ( )

Creates a temporary memory database.

This function is used to create a temporary style database in case a permanent on-disk database is not needed.

Returns: returns the success state of the temporary memory database creation

See also: createDatabase()

Since: QGIS 3.0

Definition at line 404 of file qgsstyle.cpp.

◆ createTables()

void QgsStyle::createTables ( )

Creates tables structure for new database.

This function is used to create the tables structure in a newly-created database.

Returns: returns the success state of the temporary memory database creation

See also: createDatabase(); createMemoryDatabase()

Since: QGIS 3.0

Definition at line 419 of file qgsstyle.cpp.

◆ defaultStyle()

QgsStyle * QgsStyle::defaultStyle ( )

static

Returns default application-wide style.

Definition at line 74 of file qgsstyle.cpp.

◆ detagSymbol() [1/2]

bool QgsStyle::detagSymbol	(	StyleEntity	type,
		const QString &	symbol,
		const QStringList &	tags
	)

Detags the symbol with the given list.

Removes the given tags for the specified symbol or colorramp

Parameters

type	is either SymbolEntity or ColorrampEntity
symbol	is the name of the symbol or colorramp
tags	is the list of tags that are to be removed as QStringList

Returns: returns the success state of the operation

Definition at line 1495 of file qgsstyle.cpp.

◆ detagSymbol() [2/2]

bool QgsStyle::detagSymbol	(	StyleEntity	type,
		const QString &	symbol
	)

Clears the symbol from all attached tags.

Removes all tags for the specified symbol or colorramp

Parameters

type	is either SymbolEntity or ColorrampEntity
symbol	is the name of the symbol or colorramp

Returns: returns the success state of the operation

Definition at line 1593 of file qgsstyle.cpp.

◆ entityTagsChanged

void QgsStyle::entityTagsChanged	(	QgsStyle::StyleEntity	entity,
		const QString &	name,
		const QStringList &	newTags
	)

signal

Emitted whenever an entity's tags are changed.

Since: QGIS 3.4

◆ errorString()

QString QgsStyle::errorString ( )

inline

Returns last error from load/save operation.

Definition at line 622 of file qgsstyle.h.

◆ exportXml()

bool QgsStyle::exportXml ( const QString & filename )

Exports the style as a XML file.

Definition at line 2374 of file qgsstyle.cpp.

◆ favoritedChanged

void QgsStyle::favoritedChanged	(	QgsStyle::StyleEntity	entity,
		const QString &	name,
		bool	isFavorite
	)

signal

Emitted whenever an entity is either favorited or un-favorited.

Since: QGIS 3.4

◆ fileName()

QString QgsStyle::fileName ( )

inline

Returns current file name of the style.

Definition at line 625 of file qgsstyle.h.

◆ findSymbols()

QStringList QgsStyle::findSymbols	(	StyleEntity	type,
		const QString &	qword
	)

Returns the names of the symbols which have a matching 'substring' in its definition.

Parameters

type	is either SymbolEntity or ColorrampEntity
qword	is the query string to search the symbols or colorramps.

Returns: A QStringList of the matched symbols or colorramps

Definition at line 1293 of file qgsstyle.cpp.

◆ groupsModified

void QgsStyle::groupsModified ( )

signal

Emitted every time a tag or smartgroup has been added, removed, or renamed.

◆ importXml()

bool QgsStyle::importXml ( const QString & filename )

Imports the symbols and colorramps into the default style database from the given XML file.

Definition at line 2489 of file qgsstyle.cpp.

◆ isFavorite()

bool QgsStyle::isFavorite	(	QgsStyle::StyleEntity	type,
		const QString &	name
	)

Returns true if the symbol with matching type and name is marked as a favorite.

Since: QGIS 3.10

Definition at line 1806 of file qgsstyle.cpp.

◆ isXmlStyleFile()

bool QgsStyle::isXmlStyleFile ( const QString & path )

static

Tests if the file at path is a QGIS style XML file.

This method samples only the first line in the file, so is safe to call on large xml files.

Since: QGIS 3.6

Definition at line 2701 of file qgsstyle.cpp.

◆ labelSettings()

QgsPalLayerSettings QgsStyle::labelSettings ( const QString & name ) const

Returns the label settings with the specified name.

Since: QGIS 3.10

Definition at line 2048 of file qgsstyle.cpp.

◆ labelSettingsAdded

void QgsStyle::labelSettingsAdded ( const QString & name )

signal

Emitted whenever label settings have been added to the style and the database has been updated as a result.

See also: labelSettingsRemoved(); symbolSaved()

Since: QGIS 3.10

◆ labelSettingsChanged

void QgsStyle::labelSettingsChanged ( const QString & name )

signal

Emitted whenever a label setting's definition is changed.

This does not include name or tag changes.

See also: labelSettingsAdded()

Since: QGIS 3.10

◆ labelSettingsCount()

int QgsStyle::labelSettingsCount ( ) const

Returns count of label settings in the style.

Since: QGIS 3.10

Definition at line 2061 of file qgsstyle.cpp.

◆ labelSettingsId()

int QgsStyle::labelSettingsId ( const QString & name )

Returns the ID in the style database for the given label settings by name.

Returns 0 if the label settings were not found.

Since: QGIS 3.10

Definition at line 2071 of file qgsstyle.cpp.

◆ labelSettingsLayerType()

QgsWkbTypes::GeometryType QgsStyle::labelSettingsLayerType ( const QString & name ) const

Returns the layer geometry type corresponding to the label settings with the specified name, or QgsWkbTypes::UnknownGeometry if matching label settings are not present.

Since: QGIS 3.10

Definition at line 2053 of file qgsstyle.cpp.

◆ labelSettingsNames()

QStringList QgsStyle::labelSettingsNames ( ) const

Returns a list of names of label settings in the style.

Since: QGIS 3.10

Definition at line 2066 of file qgsstyle.cpp.

◆ labelSettingsRemoved

void QgsStyle::labelSettingsRemoved ( const QString & name )

signal

Emitted whenever label settings have been removed from the style and the database has been updated as a result.

See also: labelSettingsAdded(); symbolRemoved()

Since: QGIS 3.10

◆ labelSettingsRenamed

void QgsStyle::labelSettingsRenamed	(	const QString &	oldName,
		const QString &	newName
	)

signal

Emitted whenever label settings have been renamed from oldName to newName.

See also: symbolRenamed()

Since: QGIS 3.10

◆ load()

bool QgsStyle::load ( const QString & filename )

Loads a file into the style.

This function will load an on-disk database and populate styles.

Parameters

filename location of the database to load styles from

Returns: returns the success state of the database being loaded

Definition at line 463 of file qgsstyle.cpp.

◆ rampAdded

void QgsStyle::rampAdded ( const QString & name )

signal

Emitted whenever a color ramp has been added to the style and the database has been updated as a result.

See also: rampRemoved(); symbolSaved()

Since: QGIS 3.4

◆ rampChanged

void QgsStyle::rampChanged ( const QString & name )

signal

Emitted whenever a color ramp's definition is changed.

This does not include name or tag changes.

See also: rampAdded()

Since: QGIS 3.4

◆ rampRemoved

void QgsStyle::rampRemoved ( const QString & name )

signal

Emitted whenever a color ramp has been removed from the style and the database has been updated as a result.

See also: rampAdded(); symbolRemoved()

Since: QGIS 3.4

◆ rampRenamed

void QgsStyle::rampRenamed	(	const QString &	oldName,
		const QString &	newName
	)

signal

Emitted whenever a color ramp has been renamed from oldName to newName.

See also: symbolRenamed()

Since: QGIS 3.4

◆ remove()

bool QgsStyle::remove	(	StyleEntity	type,
		int	id
	)

Removes the specified entity from the db.

Parameters

type	is any of the style entities. Refer enum StyleEntity.
id	is the DB id of the entity to be removed

Definition at line 1116 of file qgsstyle.cpp.

◆ removeColorRamp()

bool QgsStyle::removeColorRamp ( const QString & name )

Removes color ramp from style (and delete it)

Definition at line 335 of file qgsstyle.cpp.

◆ removeFavorite()

bool QgsStyle::removeFavorite	(	StyleEntity	type,
		const QString &	name
	)

Removes the specified symbol from favorites.

Parameters

type	is either SymbolEntity of ColorrampEntity
name	is the name of the symbol or coloramp whose is to be removed from favorites

Returns: returns the success state as bool

Definition at line 1241 of file qgsstyle.cpp.

◆ removeLabelSettings()

bool QgsStyle::removeLabelSettings ( const QString & name )

Removes label settings from the style.

Since: QGIS 3.10

Definition at line 833 of file qgsstyle.cpp.

◆ removeSymbol()

bool QgsStyle::removeSymbol ( const QString & name )

Removes symbol from style (and delete it)

Definition at line 181 of file qgsstyle.cpp.

◆ removeTextFormat()

bool QgsStyle::removeTextFormat ( const QString & name )

Removes a text format from the style.

Since: QGIS 3.10

Definition at line 745 of file qgsstyle.cpp.

◆ rename()

bool QgsStyle::rename	(	StyleEntity	type,
		int	id,
		const QString &	newName
	)

Renames the given entity with the specified id.

Parameters

type	is any of the style entities. Refer enum StyleEntity.
id	is the DB id of the entity which is to be renamed
newName	is the new name of the entity

Definition at line 1052 of file qgsstyle.cpp.

◆ renameColorRamp()

bool QgsStyle::renameColorRamp	(	const QString &	oldName,
		const QString &	newName
	)

Changes ramp's name.

Definition at line 680 of file qgsstyle.cpp.

◆ renameLabelSettings()

bool QgsStyle::renameLabelSettings	(	const QString &	oldName,
		const QString &	newName
	)

Changes a label setting's name.

Since: QGIS 3.10

Definition at line 855 of file qgsstyle.cpp.

◆ renameSymbol()

bool QgsStyle::renameSymbol	(	const QString &	oldName,
		const QString &	newName
	)

Renames a symbol from oldName to newName.

Returns true if symbol was successfully renamed.

Definition at line 643 of file qgsstyle.cpp.

◆ renameTextFormat()

bool QgsStyle::renameTextFormat	(	const QString &	oldName,
		const QString &	newName
	)

Changes a text format's name.

Since: QGIS 3.10

Definition at line 768 of file qgsstyle.cpp.

◆ save()

bool QgsStyle::save ( QString filename = QString() )

Saves style into a file (will use current filename if empty string is passed)

Definition at line 597 of file qgsstyle.cpp.

◆ saveColorRamp()

bool QgsStyle::saveColorRamp	(	const QString &	name,
		QgsColorRamp *	ramp,
		bool	favorite,
		const QStringList &	tags
	)

Adds the colorramp to the DB.

Parameters

name	is the name of the colorramp as QString
ramp	is the pointer to the new QgsColorRamp being saved
favorite	is a boolean value to specify whether the colorramp should be added to favorites
tags	is a list of tags that are associated with the color ramp as a QStringList.

Returns: returns the success state of the save operation

Definition at line 302 of file qgsstyle.cpp.

◆ saveLabelSettings()

bool QgsStyle::saveLabelSettings	(	const QString &	name,
		const QgsPalLayerSettings &	settings,
		bool	favorite,
		const QStringList &	tags
	)

Adds label settings to the database.

Parameters

name	is the name of the label settings
settings	label settings to save
favorite	is a boolean value to specify whether the label settings should be added to favorites
tags	is a list of tags that are associated with the label settings

Returns: returns the success state of the save operation

Definition at line 800 of file qgsstyle.cpp.

◆ saveSymbol()

bool QgsStyle::saveSymbol	(	const QString &	name,
		QgsSymbol *	symbol,
		bool	favorite,
		const QStringList &	tags
	)

Adds the symbol to the DB with the tags.

Parameters

name	is the name of the symbol as QString
symbol	is the pointer to the new QgsSymbol being saved
favorite	is a boolean value to specify whether the symbol should be added to favorites
tags	is a list of tags that are associated with the symbol as a QStringList.

Returns: returns the success state of the save operation

Definition at line 148 of file qgsstyle.cpp.

◆ saveTextFormat()

bool QgsStyle::saveTextFormat	(	const QString &	name,
		const QgsTextFormat &	format,
		bool	favorite,
		const QStringList &	tags
	)

Adds a text format to the database.

Parameters

name	is the name of the text format
format	text format to save
favorite	is a boolean value to specify whether the text format should be added to favorites
tags	is a list of tags that are associated with the text format

Returns: returns the success state of the save operation

Definition at line 712 of file qgsstyle.cpp.

◆ smartgroup()

QgsSmartConditionMap QgsStyle::smartgroup ( int id )

Returns the QgsSmartConditionMap for the given id.

Definition at line 2304 of file qgsstyle.cpp.

◆ smartgroupId()

int QgsStyle::smartgroupId ( const QString & smartgroup )

Returns the DB id for the given smartgroup name.

Definition at line 2081 of file qgsstyle.cpp.

◆ smartgroupNames()

QStringList QgsStyle::smartgroupNames ( ) const

Returns the smart groups list.

Definition at line 2188 of file qgsstyle.cpp.

◆ smartgroupOperator()

QString QgsStyle::smartgroupOperator ( int id )

Returns the operator for the smartgroup clumsy implementation TODO create a class for smartgroups.

Definition at line 2344 of file qgsstyle.cpp.

◆ smartgroupsListMap()

QgsSymbolGroupMap QgsStyle::smartgroupsListMap ( )

Returns the smart groups map with id as key and name as value.

Definition at line 2163 of file qgsstyle.cpp.

◆ symbol()

QgsSymbol * QgsStyle::symbol ( const QString & name )

Returns a NEW copy of symbol.

Definition at line 214 of file qgsstyle.cpp.

◆ symbolChanged

void QgsStyle::symbolChanged ( const QString & name )

signal

Emitted whenever a symbol's definition is changed.

This does not include name or tag changes.

See also: symbolSaved()

Since: QGIS 3.4

◆ symbolCount()

int QgsStyle::symbolCount ( )

Returns count of symbols in style.

Definition at line 225 of file qgsstyle.cpp.

◆ symbolHasTag()

bool QgsStyle::symbolHasTag	(	StyleEntity	type,
		const QString &	symbol,
		const QString &	tag
	)

Returns whether a given tag is associated with the symbol.

Parameters

type	is either SymbolEntity or ColorrampEntity
symbol	is the name of the symbol or color ramp
tag	the name of the tag to look for

Returns: A boolean value identicating whether a tag was found attached to the symbol

Definition at line 1880 of file qgsstyle.cpp.

◆ symbolId()

int QgsStyle::symbolId ( const QString & name )

Returns the id in the style database for the given symbol name returns 0 if not found.

Definition at line 2018 of file qgsstyle.cpp.

◆ symbolNames()

QStringList QgsStyle::symbolNames ( ) const

Returns a list of names of symbols.

Definition at line 230 of file qgsstyle.cpp.

◆ symbolRef()

const QgsSymbol * QgsStyle::symbolRef ( const QString & name ) const

Returns a const pointer to a symbol (doesn't create new instance)

Definition at line 220 of file qgsstyle.cpp.

◆ symbolRemoved

void QgsStyle::symbolRemoved ( const QString & name )

signal

Emitted whenever a symbol has been removed from the style and the database has been updated as a result.

See also: symbolSaved(); rampRemoved()

Since: QGIS 3.4

◆ symbolRenamed

void QgsStyle::symbolRenamed	(	const QString &	oldName,
		const QString &	newName
	)

signal

Emitted whenever a symbol has been renamed from oldName to newName.

See also: rampRenamed()

Since: QGIS 3.4

◆ symbolSaved

void QgsStyle::symbolSaved	(	const QString &	name,
		QgsSymbol *	symbol
	)

signal

Emitted every time a new symbol has been added to the database.

Emitted whenever a symbol has been added to the style and the database has been updated as a result.

See also: symbolRemoved(); rampAdded(); symbolChanged()

◆ symbolsOfFavorite()

QStringList QgsStyle::symbolsOfFavorite ( StyleEntity type ) const

Returns the symbol names which are flagged as favorite.

Parameters

type	is either SymbolEntity or ColorampEntity

Returns: A QStringList of the symbol or colorramp names flagged as favorite

Definition at line 887 of file qgsstyle.cpp.

◆ symbolsOfSmartgroup()

QStringList QgsStyle::symbolsOfSmartgroup	(	StyleEntity	type,
		int	id
	)

Returns the symbols for the smartgroup.

Definition at line 2212 of file qgsstyle.cpp.

◆ symbolsWithTag()

QStringList QgsStyle::symbolsWithTag	(	StyleEntity	type,
		int	tagid
	)		const

Returns the symbol names with which have the given tag.

Parameters

type	is either SymbolEntity or ColorampEntity
tagid	is id of the tag which has been applied over the symbol as int

Returns: A QStringList of the symbol or colorramp names for the given tag id

Definition at line 933 of file qgsstyle.cpp.

◆ tag()

QString QgsStyle::tag ( int id ) const

Returns the tag name for the given id.

Definition at line 1953 of file qgsstyle.cpp.

◆ tagId()

int QgsStyle::tagId ( const QString & tag )

Returns the DB id for the given tag name.

Definition at line 2076 of file qgsstyle.cpp.

◆ tags()

QStringList QgsStyle::tags ( ) const

Returns a list of all tags in the style database.

See also: addTag()

Since: QGIS 2.16

Definition at line 1032 of file qgsstyle.cpp.

◆ tagsOfSymbol()

QStringList QgsStyle::tagsOfSymbol	(	StyleEntity	type,
		const QString &	symbol
	)

Returns the tags associated with the symbol.

Parameters

type	is either SymbolEntity or ColorrampEntity
symbol	is the name of the symbol or color ramp

Returns: A QStringList of the tags that have been applied to that symbol/colorramp

Definition at line 1674 of file qgsstyle.cpp.

◆ tagSymbol()

bool QgsStyle::tagSymbol	(	StyleEntity	type,
		const QString &	symbol,
		const QStringList &	tags
	)

Tags the symbol with the tags in the list.

Applies the given tags to the given symbol or colorramp

Parameters

type	is either SymbolEntity or ColorrampEntity
symbol	is the name of the symbol or colorramp as QString
tags	is the list of the tags that are to be applied as QStringList

Returns: returns the success state of the operation

Definition at line 1397 of file qgsstyle.cpp.

◆ textFormat()

QgsTextFormat QgsStyle::textFormat ( const QString & name ) const

Returns the text format with the specified name.

Since: QGIS 3.10

Definition at line 2028 of file qgsstyle.cpp.

◆ textFormatAdded

void QgsStyle::textFormatAdded ( const QString & name )

signal

Emitted whenever a text format has been added to the style and the database has been updated as a result.

See also: textFormatRemoved(); symbolSaved()

Since: QGIS 3.10

◆ textFormatChanged

void QgsStyle::textFormatChanged ( const QString & name )

signal

Emitted whenever a text format's definition is changed.

This does not include name or tag changes.

See also: textFormatAdded()

Since: QGIS 3.10

◆ textFormatCount()

int QgsStyle::textFormatCount ( ) const

Returns count of text formats in the style.

Since: QGIS 3.10

Definition at line 2033 of file qgsstyle.cpp.

◆ textFormatId()

int QgsStyle::textFormatId ( const QString & name )

Returns the ID in the style database for the given text format by name.

Returns 0 if the text format was not found.

Since: QGIS 3.10

Definition at line 2043 of file qgsstyle.cpp.

◆ textFormatNames()

QStringList QgsStyle::textFormatNames ( ) const

Returns a list of names of text formats in the style.

Since: QGIS 3.10

Definition at line 2038 of file qgsstyle.cpp.

◆ textFormatRemoved

void QgsStyle::textFormatRemoved ( const QString & name )

signal

Emitted whenever a text format has been removed from the style and the database has been updated as a result.

See also: textFormatAdded(); symbolRemoved()

Since: QGIS 3.10

◆ textFormatRenamed

void QgsStyle::textFormatRenamed	(	const QString &	oldName,
		const QString &	newName
	)

signal

Emitted whenever a text format has been renamed from oldName to newName.

See also: symbolRenamed()

Since: QGIS 3.10

The documentation for this class was generated from the following files:

/build/qgis-3.10.0+15buster/src/core/symbology/qgsstyle.h
/build/qgis-3.10.0+15buster/src/core/symbology/qgsstyle.cpp

Public Types

Signals

Public Member Functions

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ StyleEntity

Constructor & Destructor Documentation

◆ QgsStyle()

◆ ~QgsStyle()

Member Function Documentation

◆ addColorRamp()

◆ addEntity()

◆ addFavorite()

◆ addLabelSettings()

◆ addSmartgroup() [1/2]

◆ addSmartgroup() [2/2]

◆ addSymbol()

◆ addTag()

◆ addTextFormat()

◆ allNames()

◆ cleanDefaultStyle()

◆ clear()

◆ colorRamp()

◆ colorRampCount()

◆ colorrampId()

◆ colorRampNames()

◆ colorRampRef()

◆ createDatabase()

◆ createMemoryDatabase()

◆ createTables()

◆ defaultStyle()

◆ detagSymbol() [1/2]

◆ detagSymbol() [2/2]

◆ entityTagsChanged

◆ errorString()

◆ exportXml()

◆ favoritedChanged

◆ fileName()

◆ findSymbols()

◆ groupsModified

◆ importXml()

◆ isFavorite()

◆ isXmlStyleFile()

◆ labelSettings()

◆ labelSettingsAdded

◆ labelSettingsChanged

◆ labelSettingsCount()

◆ labelSettingsId()

◆ labelSettingsLayerType()

◆ labelSettingsNames()

◆ labelSettingsRemoved

◆ labelSettingsRenamed

◆ load()

◆ rampAdded

◆ rampChanged

◆ rampRemoved

◆ rampRenamed

◆ remove()

◆ removeColorRamp()

◆ removeFavorite()

◆ removeLabelSettings()

◆ removeSymbol()

◆ removeTextFormat()

◆ rename()

◆ renameColorRamp()

◆ renameLabelSettings()

◆ renameSymbol()

◆ renameTextFormat()

◆ save()

◆ saveColorRamp()

◆ saveLabelSettings()

◆ saveSymbol()

◆ saveTextFormat()

◆ smartgroup()

◆ smartgroupId()

◆ smartgroupNames()

◆ smartgroupOperator()

◆ smartgroupsListMap()

◆ symbol()