A layout item subclass for scale bars. More...

#include <qgslayoutitemscalebar.h>

Inheritance diagram for QgsLayoutItemScaleBar:

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

QgsScaleBarSettings::Alignment	alignment () const
	Returns the scalebar alignment. More...

void	applyDefaultSettings ()
	Applies the default scalebar settings to the scale bar. More...

void	applyDefaultSize (QgsUnitTypes::DistanceUnit units=QgsUnitTypes::DistanceMeters)
	Applies the default size to the scale bar (scale bar 1/5 of map item width) More...

double	boxContentSpace () const
	Returns the spacing (margin) between the scalebar box and content in millimeters. More...

QBrush	brush () const
	Returns the primary brush for the scalebar. More...

QBrush	brush2 () const
	Returns the secondary brush for the scalebar. More...

QColor	fillColor () const
	Returns the color used for fills in the scalebar. More...

QColor	fillColor2 () const
	Returns the secondary color used for fills in the scalebar. More...

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

QFont	font () const
	Returns the font used for drawing text in the scalebar. More...

QColor	fontColor () const
	Returns the color used for drawing text in the scalebar. More...

QgsUnitTypes::DistanceUnit	guessUnits () const
	Attempts to guess the most reasonable unit choice for the scalebar, given the current linked map's scale. More...

double	height () const
	Returns the scalebar height (in millimeters). More...

QIcon	icon () const override
	Returns the item's icon. More...

double	labelBarSpace () const
	Returns the spacing (in millimeters) between labels and the scalebar. More...

Qt::PenCapStyle	lineCapStyle () const
	Returns the cap style used for drawing lines in the scalebar. More...

QColor	lineColor () const
	Returns the color used for lines in the scalebar. More...

Qt::PenJoinStyle	lineJoinStyle () const
	Returns the join style used for drawing lines in the scalebar. More...

double	lineWidth () const
	Returns the line width in millimeters for lines in the scalebar. More...

QgsLayoutItemMap *	linkedMap () const
	Returns the map item linked to the scalebar. More...

double	mapUnitsPerScaleBarUnit () const
	Returns the number of map units per scale bar unit used by the scalebar. More...

double	maximumBarWidth () const
	Returns the maximum width (in millimeters) for scale bar segments. More...

double	minimumBarWidth () const
	Returns the minimum width (in millimeters) for scale bar segments. More...

QgsLayoutSize	minimumSize () const override
	Returns the minimum allowed size of the item, if applicable, or an empty size if item can be freely resized. More...

int	numberOfSegments () const
	Returns the number of segments included in the scalebar. More...

int	numberOfSegmentsLeft () const
	Returns the number of segments included in the left part of the scalebar. More...

QPen	pen () const
	Returns the pen used for drawing outlines in the scalebar. More...

void	refreshDataDefinedProperty (const QgsLayoutObject::DataDefinedProperty property=QgsLayoutObject::AllProperties) override
	Refreshes a data defined property for the item by reevaluating the property's value and redrawing the item with this new value. More...

void	resizeToMinimumWidth ()
	Resizes the scale bar to its minimum width, without changing the height. More...

QgsScaleBarSettings::SegmentSizeMode	segmentSizeMode () const
	Returns the size mode for the scale bar segments. More...

void	setAlignment (QgsScaleBarSettings::Alignment alignment)
	Sets the scalebar alignment. More...

void	setBoxContentSpace (double space)
	Sets the space (margin) between the scalebar box and content in millimeters. More...

void	setFillColor (const QColor &color)
	Sets the color used for fills in the scalebar. More...

void	setFillColor2 (const QColor &color)
	Sets the secondary color used for fills in the scalebar. More...

void	setFont (const QFont &font)
	Sets the font used for drawing text in the scalebar. More...

void	setFontColor (const QColor &color)
	Sets the color used for drawing text in the scalebar. More...

void	setHeight (double height)
	Sets the scalebar height (in millimeters). More...

void	setLabelBarSpace (double space)
	Sets the spacing (in millimeters) between labels and the scalebar. More...

void	setLineCapStyle (Qt::PenCapStyle style)
	Sets the cap style used when drawing the lines in the scalebar. More...

void	setLineColor (const QColor &color)
	Sets the color used for lines in the scalebar. More...

void	setLineJoinStyle (Qt::PenJoinStyle style)
	Sets the join style used when drawing the lines in the scalebar. More...

void	setLineWidth (double width)
	Sets the line width in millimeters for lines in the scalebar. More...

void	setLinkedMap (QgsLayoutItemMap *map)
	Sets the map item linked to the scalebar. More...

void	setMapUnitsPerScaleBarUnit (double units)
	Sets the number of map units per scale bar unit used by the scalebar. More...

void	setMaximumBarWidth (double maxWidth)
	Sets the maximum width (in millimeters) for scale bar segments. More...

void	setMinimumBarWidth (double minWidth)
	Sets the minimum width (in millimeters) for scale bar segments. More...

void	setNumberOfSegments (int segments)
	Sets the number of segments included in the scalebar. More...

void	setNumberOfSegmentsLeft (int segments)
	Sets the number of segments included in the left part of the scalebar. More...

void	setSegmentSizeMode (QgsScaleBarSettings::SegmentSizeMode mode)
	Sets the size mode for scale bar segments. More...

void	setStyle (const QString &name)
	Sets the scale bar style by name. More...

void	setUnitLabel (const QString &label)
	Sets the label for units. More...

void	setUnits (QgsUnitTypes::DistanceUnit units)
	Sets the distance units used by the scalebar. More...

void	setUnitsPerSegment (double units)
	Sets the number of scalebar units per segment. More...

QString	style () const
	Returns the scale bar style name. More...

int	type () const override

QString	unitLabel () const
	Returns the label for units. More...

QgsUnitTypes::DistanceUnit	units () const
	Returns the distance units used by the scalebar. More...

double	unitsPerSegment () const
	Returns the number of scalebar units per segment. More...

void	update ()
	Adjusts the scale bar box size and updates the item. More...

Public Member Functions inherited from QgsLayoutItem
	QgsLayoutItem (QgsLayout *layout, bool manageZValue=true)
	Constructor for QgsLayoutItem, with the specified parent layout. More...

	~QgsLayoutItem () override

virtual void	attemptMove (const QgsLayoutPoint &point, bool useReferencePoint=true, bool includesFrame=false, int page=-1)
	Attempts to move the item to a specified point. More...

void	attemptMoveBy (double deltaX, double deltaY)
	Attempts to shift the item's position by a specified deltaX and deltaY, in layout units. More...

virtual void	attemptResize (const QgsLayoutSize &size, bool includesFrame=false)
	Attempts to resize the item to a specified target size. More...

void	attemptSetSceneRect (const QRectF &rect, bool includesFrame=false)
	Attempts to update the item's position and size to match the passed rect in layout coordinates. More...

QColor	backgroundColor () const
	Returns the background color for this item. More...

void	beginCommand (const QString &commandText, UndoCommand command=UndoNone)
	Starts new undo command for this item. More...

QPainter::CompositionMode	blendMode () const
	Returns the item's composition blending mode. More...

void	cancelCommand ()
	Cancels the current item command and discards it. More...

virtual void	cleanup ()
	Called just before a batch of items are deleted, allowing them to run cleanup tasks. More...

virtual bool	containsAdvancedEffects () const
	Returns true if the item contains contents with blend modes or transparency effects which can only be reproduced by rastering the item. More...

QgsAbstractLayoutUndoCommand *	createCommand (const QString &text, int id, QUndoCommand *parent=nullptr) override
	Creates a new layout undo command with the specified text and parent. More...

QgsExpressionContext	createExpressionContext () const override
	This method needs to be reimplemented in all classes which implement this interface and return an expression context. More...

virtual QString	displayName () const
	Get item display name. More...

void	endCommand ()
	Completes the current item command and push it onto the layout's undo stack. More...

virtual double	estimatedFrameBleed () const
	Returns the estimated amount the item's frame bleeds outside the item's actual rectangle. More...

bool	excludeFromExports () const
	Returns whether the item should be excluded from layout exports and prints. More...

virtual QgsLayoutSize	fixedSize () const
	Returns the fixed size of the item, if applicable, or an empty size if item can be freely resized. More...

bool	frameEnabled () const
	Returns true if the item includes a frame. More...

Qt::PenJoinStyle	frameJoinStyle () const
	Returns the join style used for drawing the item's frame. More...

QColor	frameStrokeColor () const
	Returns the frame's stroke color. More...

QgsLayoutMeasurement	frameStrokeWidth () const
	Returns the frame's stroke width. More...

bool	hasBackground () const
	Returns true if the item has a background. More...

QString	id () const
	Returns the item's ID name. More...

bool	isGroupMember () const
	Returns true if the item is part of a QgsLayoutItemGroup group. More...

bool	isLocked () const
	Returns true if the item is locked, and cannot be interacted with using the mouse. More...

double	itemOpacity () const
	Returns the item's opacity. More...

double	itemRotation () const
	Returns the current rotation for the item, in degrees clockwise. More...

virtual void	moveContent (double dx, double dy)
	Moves the content of the item, by a specified dx and dy in layout units. More...

virtual int	numberExportLayers () const
	Returns the number of layers that this item requires for exporting during layered exports (e.g. More...

int	page () const
	Returns the page the item is currently on, with the first page returning 0. More...

QPointF	pagePos () const
	Returns the item's position (in layout units) relative to the top left corner of its current page. More...

QgsLayoutPoint	pagePositionWithUnits () const
	Returns the item's position (in item units) relative to the top left corner of its current page. More...

void	paint (QPainter painter, const QStyleOptionGraphicsItem itemStyle, QWidget *pWidget) override
	Handles preparing a paint surface for the layout item and painting the item's content. More...

QgsLayoutItemGroup *	parentGroup () const
	Returns the item's parent group, if the item is part of a QgsLayoutItemGroup group. More...

QgsLayoutPoint	positionWithUnits () const
	Returns the item's current position, including units. More...

bool	readXml (const QDomElement &itemElement, const QDomDocument &document, const QgsReadWriteContext &context)
	Sets the item state from a DOM element. More...

virtual QRectF	rectWithFrame () const
	Returns the item's rectangular bounds, including any bleed caused by the item's frame. More...

ReferencePoint	referencePoint () const
	Returns the reference point for positioning of the layout item. More...

virtual bool	requiresRasterization () const
	Returns true if the item is drawn in such a way that forces the whole layout to be rasterized when exporting to vector formats. More...

void	setBackgroundColor (const QColor &color)
	Sets the background color for this item. More...

void	setBackgroundEnabled (bool drawBackground)
	Sets whether this item has a background drawn under it or not. More...

void	setBlendMode (const QPainter::CompositionMode mode)
	Sets the item's composition blending mode. More...

void	setExcludeFromExports (bool exclude)
	Sets whether the item should be excluded from layout exports and prints. More...

virtual void	setFrameEnabled (bool drawFrame)
	Sets whether this item has a frame drawn around it or not. More...

void	setFrameJoinStyle (const Qt::PenJoinStyle style)
	Sets the join style used when drawing the item's frame. More...

void	setFrameStrokeColor (const QColor &color)
	Sets the frame stroke color. More...

virtual void	setFrameStrokeWidth (const QgsLayoutMeasurement &width)
	Sets the frame stroke width. More...

virtual void	setId (const QString &id)
	Set the item's id name. More...

void	setItemOpacity (double opacity)
	Sets the item's opacity. More...

void	setLocked (const bool locked)
	Sets whether the item is locked, preventing mouse interactions with the item. More...

virtual void	setMoveContentPreviewOffset (double dx, double dy)
	Sets temporary offset for the item, by a specified dx and dy in layout units. More...

void	setParentGroup (QgsLayoutItemGroup *group)
	Sets the item's parent group. More...

void	setReferencePoint (const ReferencePoint &point)
	Sets the reference point for positioning of the layout item. More...

virtual void	setSelected (bool selected)
	Sets whether the item should be selected. More...

virtual void	setVisibility (const bool visible)
	Sets whether the item is visible. More...

bool	shouldDrawItem () const
	Returns whether the item should be drawn in the current context. More...

QgsLayoutSize	sizeWithUnits () const
	Returns the item's current size, including units. More...

int	type () const override
	Returns a unique graphics item type identifier. More...

virtual QString	uuid () const
	Returns the item identification string. More...

bool	writeXml (QDomElement &parentElement, QDomDocument &document, const QgsReadWriteContext &context) const
	Stores the item state in a DOM element. More...

virtual void	zoomContent (double factor, QPointF point)
	Zooms content of item. 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
	Return 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

Public Member Functions inherited from QgsLayoutUndoObjectInterface
virtual	~QgsLayoutUndoObjectInterface ()=default
	Destructor for QgsLayoutUndoObjectInterface. More...

Static Public Member Functions
static QgsLayoutItemScaleBar *	create (QgsLayout *layout)
	Returns a new scale bar item for the specified layout. More...

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

Protected Member Functions
void	draw (QgsLayoutItemRenderContext &context) override
	Draws the item's contents using the specified item render context. More...

bool	readPropertiesFromElement (const QDomElement &element, const QDomDocument &document, const QgsReadWriteContext &context) override
	Sets item state from a DOM element. More...

bool	writePropertiesToElement (QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context) const override
	Stores item state within an XML DOM element. More...

Protected Member Functions inherited from QgsLayoutItem
QPointF	adjustPointForReferencePosition (const QPointF &point, const QSizeF &size, const ReferencePoint &reference) const
	Adjusts the specified point at which a reference position of the item sits and returns the top left corner of the item, if reference point were placed at the specified position. More...

QgsLayoutSize	applyDataDefinedSize (const QgsLayoutSize &size)
	Applies any present data defined size overrides to the specified layout size. More...

virtual QSizeF	applyItemSizeConstraint (const QSizeF &targetSize)
	Applies any item-specific size constraint handling to a given targetSize in layout units. More...

virtual void	drawBackground (QgsRenderContext &context)
	Draws the background for the item. More...

virtual void	drawDebugRect (QPainter *painter)
	Draws a debugging rectangle of the item's current bounds within the specified painter. More...

virtual void	drawFrame (QgsRenderContext &context)
	Draws the frame around the item. More...

QPointF	positionAtReferencePoint (const ReferencePoint &reference) const
	Returns the current position (in layout units) of a reference point for the item. More...

void	refreshBackgroundColor (bool updateItem=true)
	Refresh item's background color, considering data defined colors. More...

void	refreshBlendMode ()
	Refresh item's blend mode, considering data defined blend mode. More...

void	refreshFrame (bool updateItem=true)
	Refresh item's frame, considering data defined colors and frame size. More...

void	refreshItemPosition ()
	Refreshes an item's position by rechecking it against any possible overrides such as data defined positioning. More...

void	refreshItemRotation (QPointF *origin=nullptr)
	Refreshes an item's rotation by rechecking it against any possible overrides such as data defined rotation. More...

void	refreshItemSize ()
	Refreshes an item's size by rechecking it against any possible item fixed or minimum sizes. More...

void	refreshOpacity (bool updateItem=true)
	Refresh item's opacity, considering data defined opacity. More...

virtual void	setFixedSize (const QgsLayoutSize &size)
	Sets a fixed size for the layout item, which prevents it from being freely resized. More...

virtual void	setMinimumSize (const QgsLayoutSize &size)
	Sets the minimum allowed size for the layout item. More...

QgsLayoutPoint	topLeftToReferencePoint (const QgsLayoutPoint &point) const
	Returns the position for the reference point of the item, if the top-left of the item was placed at the specified point. 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...

Friends
class	QgsCompositionConverter

Additional Inherited Members
Public Types inherited from QgsLayoutItem
enum	ReferencePoint { UpperLeft, UpperMiddle, UpperRight, MiddleLeft, Middle, MiddleRight, LowerLeft, LowerMiddle, LowerRight }
	Fixed position reference point. More...

enum	UndoCommand { UndoNone = -1, UndoIncrementalMove = 1, UndoIncrementalResize, UndoStrokeColor, UndoStrokeWidth, UndoBackgroundColor, UndoOpacity, UndoSetId, UndoRotation, UndoShapeStyle, UndoShapeCornerRadius, UndoNodeMove, UndoAtlasMargin, UndoMapRotation, UndoZoomContent, UndoOverviewStyle, UndoGridFramePenColor, UndoMapGridFrameFill1Color, UndoMapGridFrameFill2Color, UndoMapAnnotationDistance, UndoMapGridAnnotationFontColor, UndoMapGridLineSymbol, UndoMapGridMarkerSymbol, UndoPictureRotation, UndoPictureFillColor, UndoPictureStrokeColor, UndoPictureStrokeWidth, UndoPictureNorthOffset, UndoLabelText, UndoLabelFont, UndoLabelMargin, UndoLabelFontColor, UndoLegendText, UndoLegendColumnCount, UndoLegendSymbolWidth, UndoLegendSymbolHeight, UndoLegendWmsLegendWidth, UndoLegendWmsLegendHeight, UndoLegendTitleSpaceBottom, UndoLegendGroupSpace, UndoLegendLayerSpace, UndoLegendSymbolSpace, UndoLegendIconSymbolSpace, UndoLegendFontColor, UndoLegendBoxSpace, UndoLegendColumnSpace, UndoLegendLineSpacing, UndoLegendRasterStrokeWidth, UndoLegendRasterStrokeColor, UndoLegendTitleFont, UndoLegendGroupFont, UndoLegendLayerFont, UndoLegendItemFont, UndoScaleBarLineWidth, UndoScaleBarSegmentSize, UndoScaleBarSegmentsLeft, UndoScaleBarSegments, UndoScaleBarHeight, UndoScaleBarFontColor, UndoScaleBarFillColor, UndoScaleBarFillColor2, UndoScaleBarStrokeColor, UndoScaleBarUnitText, UndoScaleBarMapUnitsSegment, UndoScaleBarLabelBarSize, UndoScaleBarBoxContentSpace, UndoArrowStrokeWidth, UndoArrowHeadWidth, UndoArrowHeadFillColor, UndoArrowHeadStrokeColor, UndoCustomCommand }
	Layout item undo commands, used for collapsing undo commands. More...

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 }
	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 QgsLayoutItem
virtual void	invalidateCache ()
	Forces a deferred update of any cached image the item uses. More...

virtual void	redraw ()
	Triggers a redraw (update) of the item. More...

void	refresh () override
	Refreshes the item, causing a recalculation of any property overrides and recalculation of its position and size. More...

virtual void	rotateItem (const double angle, const QPointF &transformOrigin)
	Rotates the item by a specified angle in degrees clockwise around a specified reference point. More...

virtual void	setItemRotation (double rotation, bool adjustPosition=true)
	Sets the layout item's rotation, in degrees clockwise. More...

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

Signals inherited from QgsLayoutItem
void	frameChanged ()
	Emitted if the item's frame style changes. More...

void	lockChanged ()
	Emitted if the item's lock status changes. More...

void	rotationChanged (double newRotation)
	Emitted on item rotation change. More...

void	sizePositionChanged ()
	Emitted when the item's size or position changes. More...

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

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

QgsPropertyCollection	mDataDefinedProperties

QPointer< QgsLayout >	mLayout

Properties inherited from QgsLayoutItem
bool	locked

Detailed Description

A layout item subclass for scale bars.

Since: QGIS 3.0

Definition at line 35 of file qgslayoutitemscalebar.h.

Constructor & Destructor Documentation

◆ QgsLayoutItemScaleBar()

QgsLayoutItemScaleBar::QgsLayoutItemScaleBar ( QgsLayout * layout )

Constructor for QgsLayoutItemScaleBar, with the specified parent layout.

Definition at line 43 of file qgslayoutitemscalebar.cpp.

Member Function Documentation

◆ alignment()

QgsScaleBarSettings::Alignment QgsLayoutItemScaleBar::alignment ( ) const

inline

Returns the scalebar alignment.

See also: setAlignment()

Definition at line 332 of file qgslayoutitemscalebar.h.

◆ applyDefaultSettings()

void QgsLayoutItemScaleBar::applyDefaultSettings ( )

Applies the default scalebar settings to the scale bar.

See also: applyDefaultSize()

Definition at line 368 of file qgslayoutitemscalebar.cpp.

◆ applyDefaultSize()

void QgsLayoutItemScaleBar::applyDefaultSize ( QgsUnitTypes::DistanceUnit units = QgsUnitTypes::DistanceMeters )

Applies the default size to the scale bar (scale bar 1/5 of map item width)

See also: applyDefaultSettings()

Definition at line 435 of file qgslayoutitemscalebar.cpp.

◆ boxContentSpace()

double QgsLayoutItemScaleBar::boxContentSpace ( ) const

inline

Returns the spacing (margin) between the scalebar box and content in millimeters.

See also: setBoxContentSpace()

Definition at line 320 of file qgslayoutitemscalebar.h.

◆ brush()

QBrush QgsLayoutItemScaleBar::brush ( ) const

inline

Returns the primary brush for the scalebar.

Returns: QBrush used for filling the scalebar

See also: setBrush; brush2; pen

Definition at line 269 of file qgslayoutitemscalebar.h.

◆ brush2()

QBrush QgsLayoutItemScaleBar::brush2 ( ) const

inline

Returns the secondary brush for the scalebar.

This is used for alternating color style scalebars, such as single and double box styles.

Returns: QBrush used for secondary color areas

See also: setBrush2; brush

Definition at line 278 of file qgslayoutitemscalebar.h.

◆ create()

QgsLayoutItemScaleBar * QgsLayoutItemScaleBar::create ( QgsLayout * layout )

static

Returns a new scale bar item for the specified layout.

The caller takes responsibility for deleting the returned object.

Definition at line 60 of file qgslayoutitemscalebar.cpp.

◆ draw()

void QgsLayoutItemScaleBar::draw ( QgsLayoutItemRenderContext & context )

overrideprotectedvirtual

Draws the item's contents using the specified item render context.

Note that the context's painter has been scaled so that painter units are pixels. Use the QgsRenderContext methods to convert from millimeters or other units to the painter's units.

Implements QgsLayoutItem.

Definition at line 70 of file qgslayoutitemscalebar.cpp.

◆ fillColor()

QColor QgsLayoutItemScaleBar::fillColor ( ) const

inline

Returns the color used for fills in the scalebar.

See also: setFillColor(); fillColor2()

Definition at line 208 of file qgslayoutitemscalebar.h.

◆ fillColor2()

QColor QgsLayoutItemScaleBar::fillColor2 ( ) const

inline

Returns the secondary color used for fills in the scalebar.

See also: setFillColor2(); fillColor()

Definition at line 222 of file qgslayoutitemscalebar.h.

◆ finalizeRestoreFromXml()

void QgsLayoutItemScaleBar::finalizeRestoreFromXml ( )

overridevirtual

Called after all pending items have been restored from XML.

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. a scalebar can use this to connect to its linked map item after restoration from XML.

See also: readXml()

Reimplemented from QgsLayoutItem.

Definition at line 794 of file qgslayoutitemscalebar.cpp.

◆ font()

QFont QgsLayoutItemScaleBar::font ( ) const

Returns the font used for drawing text in the scalebar.

See also: setFont()

Definition at line 547 of file qgslayoutitemscalebar.cpp.

◆ fontColor()

QColor QgsLayoutItemScaleBar::fontColor ( ) const

inline

Returns the color used for drawing text in the scalebar.

See also: setFontColor(); font()

Definition at line 194 of file qgslayoutitemscalebar.h.

◆ guessUnits()

QgsUnitTypes::DistanceUnit QgsLayoutItemScaleBar::guessUnits ( ) const

Attempts to guess the most reasonable unit choice for the scalebar, given the current linked map's scale.

This method also considers the linked map's CRS, in order to determine if metric or imperial units are more appropriate.

Definition at line 393 of file qgslayoutitemscalebar.cpp.

◆ height()

double QgsLayoutItemScaleBar::height ( ) const

inline

Returns the scalebar height (in millimeters).

See also: setHeight()

Definition at line 284 of file qgslayoutitemscalebar.h.

◆ icon()

QIcon QgsLayoutItemScaleBar::icon ( ) const

overridevirtual

Returns the item's icon.

Reimplemented from QgsLayoutItem.

Definition at line 55 of file qgslayoutitemscalebar.cpp.

◆ labelBarSpace()

double QgsLayoutItemScaleBar::labelBarSpace ( ) const

inline

Returns the spacing (in millimeters) between labels and the scalebar.

See also: setLabelBarSpace()

Definition at line 308 of file qgslayoutitemscalebar.h.

◆ lineCapStyle()

Qt::PenCapStyle QgsLayoutItemScaleBar::lineCapStyle ( ) const

inline

Returns the cap style used for drawing lines in the scalebar.

See also: setLineCapStyle()

Definition at line 368 of file qgslayoutitemscalebar.h.

◆ lineColor()

QColor QgsLayoutItemScaleBar::lineColor ( ) const

inline

Returns the color used for lines in the scalebar.

See also: setLineColor()

Definition at line 235 of file qgslayoutitemscalebar.h.

◆ lineJoinStyle()

Qt::PenJoinStyle QgsLayoutItemScaleBar::lineJoinStyle ( ) const

inline

Returns the join style used for drawing lines in the scalebar.

See also: setLineJoinStyle()

Definition at line 356 of file qgslayoutitemscalebar.h.

◆ lineWidth()

double QgsLayoutItemScaleBar::lineWidth ( ) const

inline

Returns the line width in millimeters for lines in the scalebar.

See also: setLineWidth()

Definition at line 247 of file qgslayoutitemscalebar.h.

◆ linkedMap()

QgsLayoutItemMap* QgsLayoutItemScaleBar::linkedMap ( ) const

inline

Returns the map item linked to the scalebar.

See also: setLinkedMap()

Definition at line 302 of file qgslayoutitemscalebar.h.

◆ mapUnitsPerScaleBarUnit()

double QgsLayoutItemScaleBar::mapUnitsPerScaleBarUnit ( ) const

inline

Returns the number of map units per scale bar unit used by the scalebar.

See also: setMapUnitsPerScaleBarUnit()

Definition at line 157 of file qgslayoutitemscalebar.h.

◆ maximumBarWidth()

double QgsLayoutItemScaleBar::maximumBarWidth ( ) const

inline

Returns the maximum width (in millimeters) for scale bar segments.

This property is only effective if the segmentSizeMode() is set to SegmentSizeFitWidth.

See also: segmentSizeMode(); setMaximumBarWidth(); minimumBarWidth()

Definition at line 141 of file qgslayoutitemscalebar.h.

◆ minimumBarWidth()

double QgsLayoutItemScaleBar::minimumBarWidth ( ) const

inline

Returns the minimum width (in millimeters) for scale bar segments.

This property is only effective if the segmentSizeMode() is set to SegmentSizeFitWidth.

See also: segmentSizeMode(); setMinimumBarWidth(); maximumBarWidth()

Definition at line 121 of file qgslayoutitemscalebar.h.

◆ minimumSize()

QgsLayoutSize QgsLayoutItemScaleBar::minimumSize ( ) const

overridevirtual

Returns the minimum allowed size of the item, if applicable, or an empty size if item can be freely resized.

See also: setMinimumSize(); fixedSize()

Reimplemented from QgsLayoutItem.

Definition at line 65 of file qgslayoutitemscalebar.cpp.

◆ numberOfSegments()

int QgsLayoutItemScaleBar::numberOfSegments ( ) const

inline

Returns the number of segments included in the scalebar.

See also: setNumberOfSegments(); numberOfSegmentsLeft()

Definition at line 62 of file qgslayoutitemscalebar.h.

◆ numberOfSegmentsLeft()

int QgsLayoutItemScaleBar::numberOfSegmentsLeft ( ) const

inline

Returns the number of segments included in the left part of the scalebar.

See also: setNumberOfSegmentsLeft(); numberOfSegments()

Definition at line 76 of file qgslayoutitemscalebar.h.

◆ pen()

QPen QgsLayoutItemScaleBar::pen ( ) const

inline

Returns the pen used for drawing outlines in the scalebar.

See also: setPen(); brush()

Definition at line 260 of file qgslayoutitemscalebar.h.

◆ readPropertiesFromElement()

bool QgsLayoutItemScaleBar::readPropertiesFromElement	(	const QDomElement &	element,
		const QDomDocument &	document,
		const QgsReadWriteContext &	context
	)

overrideprotectedvirtual

Sets item state from a DOM element.

Parameters

element	is the DOM element for the item
document	DOM document
context	read write context

Note that item subclasses should not rely on all other items being present in the layout at the time this method is called. Instead, any connections and links to other items must be made in the finalizeRestoreFromXml() method. E.g. when restoring a scalebar, the connection to the linked map's signals should be implemented in finalizeRestoreFromXml(), not readPropertiesFromElement().

See also: writePropertiesToElement(); readXml()

Reimplemented from QgsLayoutItem.

Definition at line 631 of file qgslayoutitemscalebar.cpp.

◆ refreshDataDefinedProperty()

void QgsLayoutItemScaleBar::refreshDataDefinedProperty ( const QgsLayoutObject::DataDefinedProperty property = QgsLayoutObject::AllProperties )

overridevirtual

Refreshes a data defined property for the item by reevaluating the property's value and redrawing the item with this new value.

If property is set to QgsLayoutObject::AllProperties then all data defined properties for the item will be refreshed.

Reimplemented from QgsLayoutItem.

Definition at line 189 of file qgslayoutitemscalebar.cpp.

◆ resizeToMinimumWidth()

void QgsLayoutItemScaleBar::resizeToMinimumWidth ( )

Resizes the scale bar to its minimum width, without changing the height.

Definition at line 469 of file qgslayoutitemscalebar.cpp.

◆ segmentSizeMode()

QgsScaleBarSettings::SegmentSizeMode QgsLayoutItemScaleBar::segmentSizeMode ( ) const

inline

Returns the size mode for the scale bar segments.

See also: setSegmentSizeMode(); minBarWidth(); maxBarWidth()

Definition at line 103 of file qgslayoutitemscalebar.h.

◆ setAlignment()

void QgsLayoutItemScaleBar::setAlignment ( QgsScaleBarSettings::Alignment alignment )

Sets the scalebar alignment.

See also: alignment()

Definition at line 329 of file qgslayoutitemscalebar.cpp.

◆ setBoxContentSpace()

void QgsLayoutItemScaleBar::setBoxContentSpace ( double space )

Sets the space (margin) between the scalebar box and content in millimeters.

See also: boxContentSpace()

Definition at line 148 of file qgslayoutitemscalebar.cpp.

◆ setFillColor()

void QgsLayoutItemScaleBar::setFillColor ( const QColor & color )

inline

Sets the color used for fills in the scalebar.

See also: fillColor(); setFillColor2()

Definition at line 215 of file qgslayoutitemscalebar.h.

◆ setFillColor2()

void QgsLayoutItemScaleBar::setFillColor2 ( const QColor & color )

inline

Sets the secondary color used for fills in the scalebar.

See also: fillColor2(); setFillColor2()

Definition at line 229 of file qgslayoutitemscalebar.h.

◆ setFont()

void QgsLayoutItemScaleBar::setFont ( const QFont & font )

Sets the font used for drawing text in the scalebar.

See also: setFont()

Definition at line 552 of file qgslayoutitemscalebar.cpp.

◆ setFontColor()

void QgsLayoutItemScaleBar::setFontColor ( const QColor & color )

inline

Sets the color used for drawing text in the scalebar.

See also: fontColor(); setFont()

Definition at line 201 of file qgslayoutitemscalebar.h.

◆ setHeight()

void QgsLayoutItemScaleBar::setHeight ( double height )

inline

Sets the scalebar height (in millimeters).

See also: height()

Definition at line 290 of file qgslayoutitemscalebar.h.

◆ setLabelBarSpace()

void QgsLayoutItemScaleBar::setLabelBarSpace ( double space )

inline

Sets the spacing (in millimeters) between labels and the scalebar.

See also: labelBarSpace()

Definition at line 314 of file qgslayoutitemscalebar.h.

◆ setLineCapStyle()

void QgsLayoutItemScaleBar::setLineCapStyle ( Qt::PenCapStyle style )

Sets the cap style used when drawing the lines in the scalebar.

See also: lineCapStyle()

Definition at line 356 of file qgslayoutitemscalebar.cpp.

◆ setLineColor()

void QgsLayoutItemScaleBar::setLineColor ( const QColor & color )

inline

Sets the color used for lines in the scalebar.

See also: lineColor()

Definition at line 241 of file qgslayoutitemscalebar.h.

◆ setLineJoinStyle()

void QgsLayoutItemScaleBar::setLineJoinStyle ( Qt::PenJoinStyle style )

Sets the join style used when drawing the lines in the scalebar.

See also: lineJoinStyle()

Definition at line 344 of file qgslayoutitemscalebar.cpp.

◆ setLineWidth()

void QgsLayoutItemScaleBar::setLineWidth ( double width )

inline

Sets the line width in millimeters for lines in the scalebar.

See also: lineWidth()

Definition at line 253 of file qgslayoutitemscalebar.h.

◆ setLinkedMap()

void QgsLayoutItemScaleBar::setLinkedMap ( QgsLayoutItemMap * map )

Sets the map item linked to the scalebar.

See also: linkedMap()

Definition at line 159 of file qgslayoutitemscalebar.cpp.

◆ setMapUnitsPerScaleBarUnit()

void QgsLayoutItemScaleBar::setMapUnitsPerScaleBarUnit ( double units )

inline

Sets the number of map units per scale bar unit used by the scalebar.

See also: mapUnitsPerScaleBarUnit()

Definition at line 163 of file qgslayoutitemscalebar.h.

◆ setMaximumBarWidth()

void QgsLayoutItemScaleBar::setMaximumBarWidth ( double maxWidth )

Sets the maximum width (in millimeters) for scale bar segments.

This property is only effective if the segmentSizeMode() is set to SegmentSizeFitWidth.

See also: minimumBarWidth(); setMinimumBarWidth(); setSegmentSizeMode()

Definition at line 125 of file qgslayoutitemscalebar.cpp.

◆ setMinimumBarWidth()

void QgsLayoutItemScaleBar::setMinimumBarWidth ( double minWidth )

Sets the minimum width (in millimeters) for scale bar segments.

This property is only effective if the segmentSizeMode() is set to SegmentSizeFitWidth.

See also: minimumBarWidth(); setMaximumBarWidth(); setSegmentSizeMode()

Definition at line 113 of file qgslayoutitemscalebar.cpp.

◆ setNumberOfSegments()

void QgsLayoutItemScaleBar::setNumberOfSegments ( int segments )

Sets the number of segments included in the scalebar.

See also: numberOfSegments(); setNumberOfSegmentsLeft()

Definition at line 78 of file qgslayoutitemscalebar.cpp.

◆ setNumberOfSegmentsLeft()

void QgsLayoutItemScaleBar::setNumberOfSegmentsLeft ( int segments )

Sets the number of segments included in the left part of the scalebar.

See also: numberOfSegmentsLeft(); setNumberOfSegments()

Definition at line 137 of file qgslayoutitemscalebar.cpp.

◆ setSegmentSizeMode()

void QgsLayoutItemScaleBar::setSegmentSizeMode ( QgsScaleBarSettings::SegmentSizeMode mode )

Sets the size mode for scale bar segments.

See also: segmentSizeMode(); setMinimumBarWidth(); setMaximumBarWidth()

Definition at line 101 of file qgslayoutitemscalebar.cpp.

◆ setStyle()

void QgsLayoutItemScaleBar::setStyle ( const QString & name )

Sets the scale bar style by name.

The name parameter gives the (untranslated) style name. Possibilities are: 'Single Box', 'Double Box', 'Line Ticks Middle', 'Line Ticks Down', 'Line Ticks Up', 'Numeric'

See also: style()

Definition at line 499 of file qgslayoutitemscalebar.cpp.

◆ setUnitLabel()

void QgsLayoutItemScaleBar::setUnitLabel ( const QString & label )

inline

Sets the label for units.

See also: unitLabel()

Definition at line 175 of file qgslayoutitemscalebar.h.

◆ setUnits()

void QgsLayoutItemScaleBar::setUnits ( QgsUnitTypes::DistanceUnit units )

Sets the distance units used by the scalebar.

See also: units()

Definition at line 336 of file qgslayoutitemscalebar.cpp.

◆ setUnitsPerSegment()

void QgsLayoutItemScaleBar::setUnitsPerSegment ( double units )

Sets the number of scalebar units per segment.

See also: unitsPerSegment()

Definition at line 89 of file qgslayoutitemscalebar.cpp.

◆ style()

QString QgsLayoutItemScaleBar::style ( ) const

Returns the scale bar style name.

See also: setStyle()

Definition at line 535 of file qgslayoutitemscalebar.cpp.

◆ type()

int QgsLayoutItemScaleBar::type ( ) const

override

Definition at line 50 of file qgslayoutitemscalebar.cpp.

◆ unitLabel()

QString QgsLayoutItemScaleBar::unitLabel ( ) const

inline

Returns the label for units.

See also: setUnitLabel()

Definition at line 169 of file qgslayoutitemscalebar.h.

◆ units()

QgsUnitTypes::DistanceUnit QgsLayoutItemScaleBar::units ( ) const

inline

Returns the distance units used by the scalebar.

See also: setUnits()

Definition at line 344 of file qgslayoutitemscalebar.h.

◆ unitsPerSegment()

double QgsLayoutItemScaleBar::unitsPerSegment ( ) const

inline

Returns the number of scalebar units per segment.

See also: setUnitsPerSegment()

Definition at line 89 of file qgslayoutitemscalebar.h.

◆ update()

void QgsLayoutItemScaleBar::update ( )

Adjusts the scale bar box size and updates the item.

Definition at line 482 of file qgslayoutitemscalebar.cpp.

◆ writePropertiesToElement()

bool QgsLayoutItemScaleBar::writePropertiesToElement	(	QDomElement &	element,
		QDomDocument &	document,
		const QgsReadWriteContext &	context
	)		const

overrideprotectedvirtual

Stores item state within an XML DOM element.

Parameters

element	is the DOM element to store the item's properties in
document	DOM document
context	read write context

See also: writeXml(); readPropertiesFromElement()

Reimplemented from QgsLayoutItem.

Definition at line 559 of file qgslayoutitemscalebar.cpp.

Friends And Related Function Documentation

◆ QgsCompositionConverter

friend class QgsCompositionConverter

friend

Definition at line 458 of file qgslayoutitemscalebar.h.

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

/tmp/buildd/qgis-3.0.2+14stretch/src/core/layout/qgslayoutitemscalebar.h
/tmp/buildd/qgis-3.0.2+14stretch/src/core/layout/qgslayoutitemscalebar.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QgsLayoutItemScaleBar()

Member Function Documentation

◆ alignment()

◆ applyDefaultSettings()

◆ applyDefaultSize()

◆ boxContentSpace()

◆ brush()

◆ brush2()

◆ create()

◆ draw()

◆ fillColor()

◆ fillColor2()

◆ finalizeRestoreFromXml()

◆ font()

◆ fontColor()

◆ guessUnits()

◆ height()

◆ icon()

◆ labelBarSpace()

◆ lineCapStyle()

◆ lineColor()

◆ lineJoinStyle()

◆ lineWidth()

◆ linkedMap()

◆ mapUnitsPerScaleBarUnit()

◆ maximumBarWidth()

◆ minimumBarWidth()

◆ minimumSize()

◆ numberOfSegments()

◆ numberOfSegmentsLeft()

◆ pen()

◆ readPropertiesFromElement()

◆ refreshDataDefinedProperty()

◆ resizeToMinimumWidth()

◆ segmentSizeMode()

◆ setAlignment()

◆ setBoxContentSpace()

◆ setFillColor()

◆ setFillColor2()

◆ setFont()

◆ setFontColor()

◆ setHeight()

◆ setLabelBarSpace()

◆ setLineCapStyle()

◆ setLineColor()

◆ setLineJoinStyle()

◆ setLineWidth()

◆ setLinkedMap()

◆ setMapUnitsPerScaleBarUnit()

◆ setMaximumBarWidth()

◆ setMinimumBarWidth()

◆ setNumberOfSegments()

◆ setNumberOfSegmentsLeft()

◆ setSegmentSizeMode()

◆ setStyle()

◆ setUnitLabel()

◆ setUnits()

◆ setUnitsPerSegment()

◆ style()

◆ type()

◆ unitLabel()

◆ units()

◆ unitsPerSegment()

◆ update()

◆ writePropertiesToElement()

Friends And Related Function Documentation

◆ QgsCompositionConverter