Container class that allows storage of map themes consisting of visible map layers and layer styles. More...

#include <qgsmapthemecollection.h>

Inheritance diagram for QgsMapThemeCollection:

Classes
class	MapThemeLayerRecord
	Individual record of a visible layer in a map theme record. More...

class	MapThemeRecord
	Individual map theme record of visible layers and styles. More...

Signals
void	mapThemeChanged (const QString &theme)
	Emitted when a map theme changes definition. More...

void	mapThemesChanged ()
	Emitted when map themes within the collection are changed. More...

void	projectChanged ()
	Emitted when the project changes. More...

Public Member Functions
	QgsMapThemeCollection (QgsProject *project=nullptr)
	Create map theme collection that handles themes of the given project. More...

void	applyTheme (const QString &name, QgsLayerTreeGroup root, QgsLayerTreeModel model)
	Apply theme given by its name and modify layer tree, current style of layers and checked legend items of passed layer tree model. More...

void	clear ()
	Remove all map themes from the collection. More...

bool	hasMapTheme (const QString &name) const
	Returns whether a map theme with a matching name exists. More...

void	insert (const QString &name, const QgsMapThemeCollection::MapThemeRecord &state)
	Inserts a new map theme to the collection. More...

QStringList	mapThemes () const
	Returns a list of existing map theme names. More...

QgsMapThemeCollection::MapThemeRecord	mapThemeState (const QString &name) const
	Returns the recorded state of a map theme. More...

QMap< QString, QString >	mapThemeStyleOverrides (const QString &name)
	Gets layer style overrides (for QgsMapSettings) of the visible layers for given map theme. More...

QStringList	mapThemeVisibleLayerIds (const QString &name) const
	Returns the list of layer IDs that are visible for the specified map theme. More...

QList< QgsMapLayer * >	mapThemeVisibleLayers (const QString &name) const
	Returns the list of layers that are visible for the specified map theme. More...

QList< QgsMapLayer *>	masterLayerOrder () const
	Returns the master layer order (this will always match the project's QgsProject::layerOrder() ). More...

QList< QgsMapLayer *>	masterVisibleLayers () const
	Returns the master list of visible layers. More...

QgsProject *	project ()
	The QgsProject on which this map theme collection works. More...

void	readXml (const QDomDocument &doc)
	Reads the map theme collection state from XML. More...

void	removeMapTheme (const QString &name)
	Remove an existing map theme from collection. More...

void	setProject (QgsProject *project)
	The QgsProject on which this map theme collection works. More...

void	update (const QString &name, const QgsMapThemeCollection::MapThemeRecord &state)
	Updates a map theme within the collection. More...

void	writeXml (QDomDocument &doc)
	Writes the map theme collection state to XML. More...

Static Public Member Functions
static QgsMapThemeCollection::MapThemeRecord	createThemeFromCurrentState (QgsLayerTreeGroup root, QgsLayerTreeModel model)
	Static method to create theme from the current state of layer visibilities in layer tree, current style of layers and check state of legend items (from a layer tree model). More...

Properties
QStringList	mapThemes

QgsProject	project

Detailed Description

Container class that allows storage of map themes consisting of visible map layers and layer styles.

Since: QGIS 2.12

Definition at line 44 of file qgsmapthemecollection.h.

Constructor & Destructor Documentation

◆ QgsMapThemeCollection()

QgsMapThemeCollection::QgsMapThemeCollection ( QgsProject * project = nullptr )

Create map theme collection that handles themes of the given project.

Definition at line 29 of file qgsmapthemecollection.cpp.

Member Function Documentation

◆ applyTheme()

void QgsMapThemeCollection::applyTheme	(	const QString &	name,
		QgsLayerTreeGroup *	root,
		QgsLayerTreeModel *	model
	)

Apply theme given by its name and modify layer tree, current style of layers and checked legend items of passed layer tree model.

Since: QGIS 3.0

Definition at line 192 of file qgsmapthemecollection.cpp.

◆ clear()

void QgsMapThemeCollection::clear ( )

Remove all map themes from the collection.

Definition at line 285 of file qgsmapthemecollection.cpp.

◆ createThemeFromCurrentState()

QgsMapThemeCollection::MapThemeRecord QgsMapThemeCollection::createThemeFromCurrentState	(	QgsLayerTreeGroup *	root,
		QgsLayerTreeModel *	model
	)

static

Static method to create theme from the current state of layer visibilities in layer tree, current style of layers and check state of legend items (from a layer tree model).

Since: QGIS 3.0

Definition at line 100 of file qgsmapthemecollection.cpp.

◆ hasMapTheme()

bool QgsMapThemeCollection::hasMapTheme ( const QString & name ) const

Returns whether a map theme with a matching name exists.

Since: QGIS 3.0

Definition at line 248 of file qgsmapthemecollection.cpp.

◆ insert()

void QgsMapThemeCollection::insert	(	const QString &	name,
		const QgsMapThemeCollection::MapThemeRecord &	state
	)

Inserts a new map theme to the collection.

See also: update()

Definition at line 253 of file qgsmapthemecollection.cpp.

◆ mapThemeChanged

void QgsMapThemeCollection::mapThemeChanged ( const QString & theme )

signal

Emitted when a map theme changes definition.

Since: QGIS 3.0

◆ mapThemes()

QStringList QgsMapThemeCollection::mapThemes ( ) const

Returns a list of existing map theme names.

Since: QGIS 3.0

◆ mapThemesChanged

void QgsMapThemeCollection::mapThemesChanged ( )

signal

Emitted when map themes within the collection are changed.

Since: QGIS 3.0

◆ mapThemeState()

QgsMapThemeCollection::MapThemeRecord QgsMapThemeCollection::mapThemeState ( const QString & name ) const

inline

Returns the recorded state of a map theme.

Since: QGIS 3.0

Definition at line 234 of file qgsmapthemecollection.h.

◆ mapThemeStyleOverrides()

QMap< QString, QString > QgsMapThemeCollection::mapThemeStyleOverrides ( const QString & name )

Gets layer style overrides (for QgsMapSettings) of the visible layers for given map theme.

Since: QGIS 3.0

Definition at line 365 of file qgsmapthemecollection.cpp.

◆ mapThemeVisibleLayerIds()

QStringList QgsMapThemeCollection::mapThemeVisibleLayerIds ( const QString & name ) const

Returns the list of layer IDs that are visible for the specified map theme.

Note: The order of the returned list is not guaranteed to reflect the order of layers in the canvas.

Since: QGIS 3.0

Definition at line 298 of file qgsmapthemecollection.cpp.

◆ mapThemeVisibleLayers()

QList< QgsMapLayer * > QgsMapThemeCollection::mapThemeVisibleLayers ( const QString & name ) const

Returns the list of layers that are visible for the specified map theme.

Note: The order of the returned list is not guaranteed to reflect the order of layers in the canvas.

Since: QGIS 3.0

Definition at line 309 of file qgsmapthemecollection.cpp.

◆ masterLayerOrder()

QList< QgsMapLayer * > QgsMapThemeCollection::masterLayerOrder ( ) const

Returns the master layer order (this will always match the project's QgsProject::layerOrder() ).

All map themes will maintain the same layer order as the master layer order.

See also: masterVisibleLayers()

Since: QGIS 3.0

Definition at line 216 of file qgsmapthemecollection.cpp.

◆ masterVisibleLayers()

QList< QgsMapLayer * > QgsMapThemeCollection::masterVisibleLayers ( ) const

Returns the master list of visible layers.

The order of returned layers will always match those of masterLayerOrder(), but the returned layers are filtered to only include those visible in the project's layer tree.

See also: masterLayerOrder()

Since: QGIS 3.0

Definition at line 224 of file qgsmapthemecollection.cpp.

◆ project()

QgsProject* QgsMapThemeCollection::project ( )

The QgsProject on which this map theme collection works.

Since: QGIS 3.0

◆ projectChanged

void QgsMapThemeCollection::projectChanged ( )

signal

Emitted when the project changes.

The QgsProject on which this map theme collection works.

Since: QGIS 3.0; QGIS 3.0

◆ readXml()

void QgsMapThemeCollection::readXml ( const QDomDocument & doc )

Reads the map theme collection state from XML.

Parameters

doc	DOM document

See also: writeXml

Definition at line 417 of file qgsmapthemecollection.cpp.

◆ removeMapTheme()

void QgsMapThemeCollection::removeMapTheme ( const QString & name )

Remove an existing map theme from collection.

Since: QGIS 3.0

Definition at line 274 of file qgsmapthemecollection.cpp.

◆ setProject()

void QgsMapThemeCollection::setProject ( QgsProject * project )

The QgsProject on which this map theme collection works.

Since: QGIS 3.0; QGIS 3.0

Definition at line 205 of file qgsmapthemecollection.cpp.

◆ update()

void QgsMapThemeCollection::update	(	const QString &	name,
		const QgsMapThemeCollection::MapThemeRecord &	state
	)

Updates a map theme within the collection.

Parameters

name	name of map theme to update
state	map theme record to replace existing map theme

See also: insert()

Definition at line 262 of file qgsmapthemecollection.cpp.

◆ writeXml()

void QgsMapThemeCollection::writeXml ( QDomDocument & doc )

Writes the map theme collection state to XML.

Parameters

doc	DOM document

See also: readXml

Definition at line 527 of file qgsmapthemecollection.cpp.

Property Documentation

◆ mapThemes

QStringList QgsMapThemeCollection::mapThemes

read

Definition at line 48 of file qgsmapthemecollection.h.

◆ project

QgsProject * QgsMapThemeCollection::project

readwrite

Definition at line 49 of file qgsmapthemecollection.h.

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

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

Classes

Signals

Public Member Functions

Static Public Member Functions

Properties

Detailed Description

Constructor & Destructor Documentation

◆ QgsMapThemeCollection()

Member Function Documentation

◆ applyTheme()

◆ clear()

◆ createThemeFromCurrentState()

◆ hasMapTheme()

◆ insert()

◆ mapThemeChanged

◆ mapThemes()

◆ mapThemesChanged

◆ mapThemeState()

◆ mapThemeStyleOverrides()

◆ mapThemeVisibleLayerIds()

◆ mapThemeVisibleLayers()

◆ masterLayerOrder()

◆ masterVisibleLayers()

◆ project()

◆ projectChanged

◆ readXml()

◆ removeMapTheme()

◆ setProject()

◆ update()

◆ writeXml()

Property Documentation

◆ mapThemes

◆ project