An item which is drawn inside a QgsLayoutItemMap, e.g., a grid or map overview. More...

#include <qgslayoutitemmapitem.h>

Inheritance diagram for QgsLayoutItemMapItem:

[legend]

Public Member Functions
	QgsLayoutItemMapItem (const QString &name, QgsLayoutItemMap *map)
	Constructor for QgsLayoutItemMapItem, attached to the specified map. More...

virtual void	draw (QPainter *painter)=0
	Draws the item on to a destination painter. More...

bool	enabled () const
	Returns whether the item will be drawn. More...

virtual void	finalizeRestoreFromXml ()
	Called after all pending items have been restored from XML. More...

QString	id () const
	Returns the unique id for the map item. More...

const QgsLayoutItemMap *	map () const
	Returns the layout item map for the item. More...

QString	name () const
	Returns the friendly display name for the item. More...

virtual bool	readXml (const QDomElement &element, const QDomDocument &doc, const QgsReadWriteContext &context)
	Sets the map item state from a DOM document, where element is the DOM node corresponding to a 'LayoutMapGrid' tag. More...

void	setEnabled (bool enabled)
	Controls whether the item will be drawn. More...

void	setMap (QgsLayoutItemMap *map)
	Sets the corresponding layout map for the item. More...

void	setName (const QString &name)
	Sets the friendly display name for the item. More...

virtual bool	usesAdvancedEffects () const
	Returns true if the item is drawn using advanced effects, such as blend modes. More...

virtual bool	writeXml (QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context) const
	Stores map item state in a DOM element, where element is the DOM element corresponding to a 'LayoutMap' tag. More...

Public Member Functions inherited from QgsLayoutObject
	QgsLayoutObject (QgsLayout *layout)
	Constructor for QgsLayoutObject, with the specified parent layout. More...

QgsExpressionContext	createExpressionContext () const override
	Creates an expression context relating to the objects' current state. More...

QStringList	customProperties () const
	Returns list of keys stored in custom properties for the object. More...

QVariant	customProperty (const QString &key, const QVariant &defaultValue=QVariant()) const
	Read a custom property from the object. More...

QgsPropertyCollection &	dataDefinedProperties ()
	Returns a reference to the object's property collection, used for data defined overrides. More...

const QgsPropertyCollection &	dataDefinedProperties () const
	Returns a reference to the object's property collection, used for data defined overrides. More...

const QgsLayout *	layout () const
	Returns the layout the object is attached to. More...

QgsLayout *	layout ()
	Returns the layout the object is attached to. More...

void	removeCustomProperty (const QString &key)
	Remove a custom property from the object. More...

void	setCustomProperty (const QString &key, const QVariant &value)
	Set a custom property for the object. More...

void	setDataDefinedProperties (const QgsPropertyCollection &collection)
	Sets the objects's property collection, used for data defined overrides. More...

Public Member Functions inherited from QgsExpressionContextGenerator
virtual	~QgsExpressionContextGenerator ()=default

Protected Attributes
bool	mEnabled
	True if item is to be displayed on map. More...

QgsLayoutItemMap *	mMap = nullptr
	Associated map. More...

QString	mName
	Friendly display name. More...

QString	mUuid
	Unique id. More...

Protected Attributes inherited from QgsLayoutObject
QgsObjectCustomProperties	mCustomProperties
	Custom properties for object. More...

QgsPropertyCollection	mDataDefinedProperties

QPointer< QgsLayout >	mLayout

Additional Inherited Members
Public Types inherited from QgsLayoutObject
enum	DataDefinedProperty { NoProperty = 0, AllProperties, TestProperty, PresetPaperSize, PaperWidth, PaperHeight, NumPages, PaperOrientation, PageNumber, PositionX, PositionY, ItemWidth, ItemHeight, ItemRotation, Transparency, Opacity, BlendMode, ExcludeFromExports, FrameColor, BackgroundColor, MapRotation, MapScale, MapXMin, MapYMin, MapXMax, MapYMax, MapAtlasMargin, MapLayers, MapStylePreset, PictureSource, PictureSvgBackgroundColor, PictureSvgStrokeColor, PictureSvgStrokeWidth, SourceUrl, LegendTitle, LegendColumnCount, ScalebarFillColor, ScalebarFillColor2, ScalebarLineColor, ScalebarLineWidth, AttributeTableSourceLayer }
	Data defined properties for different item types. More...

enum	PropertyValueType { EvaluatedValue = 0, OriginalValue }
	Specifies whether the value returned by a function should be the original, user set value, or the current evaluated value for the property. More...

Public Slots inherited from QgsLayoutObject
virtual void	refresh ()
	Refreshes the object, causing a recalculation of any property overrides. More...

Signals inherited from QgsLayoutObject
void	changed ()
	Emitted when the object's properties change. More...

Static Public Member Functions inherited from QgsLayoutObject
static const QgsPropertiesDefinition &	propertyDefinitions ()
	Returns the layout object property definitions. More...

Protected Member Functions inherited from QgsLayoutObject
bool	readObjectPropertiesFromElement (const QDomElement &parentElement, const QDomDocument &document, const QgsReadWriteContext &context)
	Sets object properties from a DOM element. More...

bool	writeObjectPropertiesToElement (QDomElement &parentElement, QDomDocument &document, const QgsReadWriteContext &context) const
	Stores object properties within an XML DOM element. More...

Detailed Description

An item which is drawn inside a QgsLayoutItemMap, e.g., a grid or map overview.

Since: QGIS 3.0

Definition at line 32 of file qgslayoutitemmapitem.h.

Constructor & Destructor Documentation

QgsLayoutItemMapItem::QgsLayoutItemMapItem	(	const QString &	name,
		QgsLayoutItemMap *	map
	)

Constructor for QgsLayoutItemMapItem, attached to the specified map.

The name argument gives a friendly display name for the item.

Definition at line 22 of file qgslayoutitemmapitem.cpp.

Member Function Documentation

virtual void QgsLayoutItemMapItem::draw ( QPainter * painter )

pure virtual

Draws the item on to a destination painter.

Implemented in QgsLayoutItemMapGrid, and QgsLayoutItemMapOverview.

bool QgsLayoutItemMapItem::enabled ( ) const

Returns whether the item will be drawn.

See also: setEnabled()

Definition at line 79 of file qgslayoutitemmapitem.cpp.

void QgsLayoutItemMapItem::finalizeRestoreFromXml ( )

virtual

Called after all pending items have been restored from XML.

Map items can use this method to run steps which must take place after all items have been restored to the layout, such as connecting to signals emitted by other items, which may not have existed in the layout at the time readXml() was called. E.g. an overview can use this to connect to its linked map item after restoration from XML.

See also: readXml()

Reimplemented in QgsLayoutItemMapOverview.

Definition at line 50 of file qgslayoutitemmapitem.cpp.

QString QgsLayoutItemMapItem::id ( ) const

inline

Returns the unique id for the map item.

Definition at line 89 of file qgslayoutitemmapitem.h.

const QgsLayoutItemMap * QgsLayoutItemMapItem::map ( ) const

Returns the layout item map for the item.

See also: setMap()

Definition at line 59 of file qgslayoutitemmapitem.cpp.

QString QgsLayoutItemMapItem::name ( ) const

Returns the friendly display name for the item.

See also: setName()

Definition at line 69 of file qgslayoutitemmapitem.cpp.

bool QgsLayoutItemMapItem::readXml	(	const QDomElement &	element,
		const QDomDocument &	doc,
		const QgsReadWriteContext &	context
	)

virtual

Sets the map item state from a DOM document, where element is the DOM node corresponding to a 'LayoutMapGrid' tag.

See also: writeXml()

Reimplemented in QgsLayoutItemMapGrid, and QgsLayoutItemMapOverview.

Definition at line 41 of file qgslayoutitemmapitem.cpp.

void QgsLayoutItemMapItem::setEnabled ( bool enabled )

Controls whether the item will be drawn.

Set enabled to true to enable drawing of the item.

See also: enabled()

Definition at line 74 of file qgslayoutitemmapitem.cpp.

void QgsLayoutItemMapItem::setMap ( QgsLayoutItemMap * map )

Sets the corresponding layout map for the item.

See also: map()

Definition at line 54 of file qgslayoutitemmapitem.cpp.

void QgsLayoutItemMapItem::setName ( const QString & name )

Sets the friendly display name for the item.

See also: name()

Definition at line 64 of file qgslayoutitemmapitem.cpp.

bool QgsLayoutItemMapItem::usesAdvancedEffects ( ) const

virtual

Returns true if the item is drawn using advanced effects, such as blend modes.

Reimplemented in QgsLayoutItemMapGrid, and QgsLayoutItemMapOverview.

Definition at line 84 of file qgslayoutitemmapitem.cpp.

bool QgsLayoutItemMapItem::writeXml	(	QDomElement &	element,
		QDomDocument &	document,
		const QgsReadWriteContext &	context
	)		const

virtual

Stores map item state in a DOM element, where element is the DOM element corresponding to a 'LayoutMap' tag.

See also: readXml()

Reimplemented in QgsLayoutItemMapGrid, and QgsLayoutItemMapOverview.

Definition at line 32 of file qgslayoutitemmapitem.cpp.

Member Data Documentation

bool QgsLayoutItemMapItem::mEnabled

protected

True if item is to be displayed on map.

Definition at line 132 of file qgslayoutitemmapitem.h.

QgsLayoutItemMap* QgsLayoutItemMapItem::mMap = nullptr

protected

Associated map.

Definition at line 126 of file qgslayoutitemmapitem.h.

QString QgsLayoutItemMapItem::mName

protected

Friendly display name.

Definition at line 123 of file qgslayoutitemmapitem.h.

QString QgsLayoutItemMapItem::mUuid

protected

Unique id.

Definition at line 129 of file qgslayoutitemmapitem.h.

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

/build/qgis-3.4.15+24xenial/src/core/layout/qgslayoutitemmapitem.h
/build/qgis-3.4.15+24xenial/src/core/layout/qgslayoutitemmapitem.cpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation