Class: QgsLayoutGuideCollection¶

Stores and manages the snap guides used by a layout.

Class Hierarchy¶

Base classes¶

QAbstractTableModel
QAbstractItemModel
QObject
`QgsLayoutSerializableObject`	An interface for layout objects which can be stored and read from DOM elements.
`QgsLayoutUndoObjectInterface`	Interface for layout objects which support undo/redo commands.

Enums

`CustomRole`	Custom model roles.
`Roles`	alias of `CustomRole`

Methods

`addGuide`	Adds a guide to the collection.
`applyGuidesToAllOtherPages`	Resets all other pages' guides to match the guides from the specified sourcePage.
`clear`	Removes all guides from the collection.
`guides`	Returns a list of all guides contained in the collection.
`guidesOnPage`	Returns the list of guides contained on a matching page.
`readXml`	Sets the collection's state from a DOM element.
`removeGuide`	Removes the specified guide, and deletes it.
`setGuideLayoutPosition`	Sets the absolute position (in layout coordinates) for guide within the layout.
`setVisible`	Sets whether the guide lines should be visible.
`update`	Updates the position (and visibility) of all guide line items.
`visible`	Returns `True` if the guide lines should be drawn.
`writeXml`	Stores the collection's state in a DOM element.

class qgis.core.QgsLayoutGuideCollection[source]¶

Bases: QAbstractTableModel, QgsLayoutSerializableObject

__init__(layout: QgsLayout | None, pageCollection: QgsLayoutPageCollection | None)

Constructor for QgsLayoutGuideCollection belonging to the specified layout, and linked to the specified pageCollection.

Parameters:

layout (Optional[QgsLayout])
pageCollection (Optional[QgsLayoutPageCollection])

class CustomRole(*values)¶

Bases: IntEnum

Custom model roles.

Note

Prior to QGIS 3.36 this was available as QgsLayoutGuideCollection.Roles

Added in version 3.36.

Orientation: Guide orientation role

Available as QgsLayoutGuideCollection.OrientationRole in older QGIS releases.
Position: Guide position role

Available as QgsLayoutGuideCollection.PositionRole in older QGIS releases.
Units: Guide position units role

Available as QgsLayoutGuideCollection.UnitsRole in older QGIS releases.
Page: Guide page role

Available as QgsLayoutGuideCollection.PageRole in older QGIS releases.
LayoutPosition: Guide position in layout coordinates

Available as QgsLayoutGuideCollection.LayoutPositionRole in older QGIS releases.

Roles¶: alias of CustomRole

addGuide(self, guide: QgsLayoutGuide | None)[source]¶

Adds a guide to the collection. Ownership of the guide is transferred to the collection, and the guide will automatically have the correct layout set.

Parameters:: guide (Optional[QgsLayoutGuide])

applyGuidesToAllOtherPages(self, sourcePage: int)[source]¶

Resets all other pages’ guides to match the guides from the specified sourcePage.

Parameters:: sourcePage (int)

clear(self)[source]¶: Removes all guides from the collection.

See also

removeGuide()

guides(self) → List[QgsLayoutGuide]¶

Returns a list of all guides contained in the collection.

Return type:: List[QgsLayoutGuide]

guides(self, orientation: Qt.Orientation, page: int = -1) → List[QgsLayoutGuide]

Returns the list of guides contained in the collection with the specified orientation and on a matching page. If page is -1, guides from all pages will be returned.

See also

guidesOnPage()

Parameters:

orientation (Qt.Orientation)
page (int = -1)

Return type:

List[QgsLayoutGuide]

guidesOnPage(self, page: int) → List[QgsLayoutGuide]¶

Returns the list of guides contained on a matching page.

See also

guides()

Parameters:: page (int)
Return type:: List[QgsLayoutGuide]

readXml(self, collectionElement: QDomElement, document: QDomDocument, context: QgsReadWriteContext) → bool[source]¶

Sets the collection’s state from a DOM element. collectionElement is the DOM node corresponding to the collection.

See also

writeXml()

Parameters:

collectionElement (QDomElement)
document (QDomDocument)
context (QgsReadWriteContext)

Return type:

bool

removeGuide(self, guide: QgsLayoutGuide | None)[source]¶

Removes the specified guide, and deletes it.

See also

clear()

Parameters:: guide (Optional[QgsLayoutGuide])

setGuideLayoutPosition(self, guide: QgsLayoutGuide | None, position: float)[source]¶

Sets the absolute position (in layout coordinates) for guide within the layout.

Parameters:

guide (Optional[QgsLayoutGuide])
position (float)

setVisible(self, visible: bool)[source]¶

Sets whether the guide lines should be visible.

See also

visible()

Parameters:: visible (bool)

update(self)[source]¶: Updates the position (and visibility) of all guide line items.

visible(self) → bool[source]¶

Returns True if the guide lines should be drawn.

See also

setVisible()

Return type:: bool

writeXml(self, parentElement: QDomElement, document: QDomDocument, context: QgsReadWriteContext) → bool[source]¶

Stores the collection’s state in a DOM element. The parentElement should refer to the parent layout’s DOM element.

See also

readXml()

Parameters:

parentElement (QDomElement)
document (QDomDocument)
context (QgsReadWriteContext)

Return type:

bool