39 #include <QDomDocument> 40 #include <QDomElement> 41 #include <QFontMetricsF> 78 mStyle->draw( context.
renderContext(), mSettings, createScaleContext() );
100 refreshSegmentMillimeters();
112 refreshSegmentMillimeters();
124 refreshSegmentMillimeters();
136 refreshSegmentMillimeters();
176 disconnectCurrentMap();
186 connect( mMap, &QObject::destroyed,
this, &QgsLayoutItemScaleBar::disconnectCurrentMap );
188 refreshSegmentMillimeters();
192 void QgsLayoutItemScaleBar::disconnectCurrentMap()
200 disconnect( mMap, &QObject::destroyed,
this, &QgsLayoutItemScaleBar::disconnectCurrentMap );
208 bool forceUpdate =
false;
212 QBrush b = mSettings.
brush();
219 QBrush b = mSettings.
brush2();
226 QPen p = mSettings.
pen();
233 QPen p = mSettings.
pen();
247 void QgsLayoutItemScaleBar::refreshSegmentMillimeters()
252 QRectF composerItemRect = mMap->rect();
259 mSegmentMillimeters = composerItemRect.width() / mapWidth() * mSettings.
unitsPerSegment();
267 mSegmentMillimeters = 0;
273 double minUnitsPerSeg = ( mSettings.
minimumBarWidth() * mapWidth() ) / ( nSegments * composerItemRect.width() );
274 double maxUnitsPerSeg = ( mSettings.
maximumBarWidth() * mapWidth() ) / ( nSegments * composerItemRect.width() );
276 mSegmentMillimeters = composerItemRect.width() / mapWidth() * mSettings.
unitsPerSegment();
284 double QgsLayoutItemScaleBar::mapWidth()
const 294 return mapExtent.
width();
313 scaleContext.
size = rect().size();
315 scaleContext.
scale = mMap ? mMap->
scale() : 1.0;
343 refreshSegmentMillimeters();
375 mStyle = qgis::make_unique< QgsSingleBoxScaleBarRenderer >();
382 QString defaultFontString = settings.
value( QStringLiteral(
"LayoutDesigner/defaultFont" ), QVariant(),
QgsSettings::Gui ).toString();
385 if ( !defaultFontString.isEmpty() )
387 f.setFamily( defaultFontString );
416 double widthInSelectedUnits = mapWidth();
417 double initialUnitsPerSegment = widthInSelectedUnits / 10.0;
422 if ( initialUnitsPerSegment > 1000.0 )
430 if ( initialUnitsPerSegment > 5419.95 )
448 double upperMagnitudeMultiplier = 1.0;
449 double widthInSelectedUnits = mapWidth();
450 double initialUnitsPerSegment = widthInSelectedUnits / 10.0;
454 upperMagnitudeMultiplier = 1;
456 double segmentWidth = initialUnitsPerSegment / upperMagnitudeMultiplier;
457 int segmentMagnitude = std::floor( std::log10( segmentWidth ) );
458 double unitsPerSegment = upperMagnitudeMultiplier * ( std::pow( 10.0, segmentMagnitude ) );
459 double multiplier = std::floor( ( widthInSelectedUnits / ( unitsPerSegment * 10.0 ) ) / 2.5 ) * 2.5;
461 if ( multiplier > 0 )
463 unitsPerSegment = unitsPerSegment * multiplier;
472 refreshSegmentMillimeters();
482 double widthMM = mStyle->calculateBoxSize( mSettings, createScaleContext() ).width();
493 if ( mStyle && mStyle->name() != QLatin1String(
"Numeric" ) )
497 QgsLayoutItem::update();
500 void QgsLayoutItemScaleBar::updateScale()
502 refreshSegmentMillimeters();
510 if ( styleName == QLatin1String(
"Single Box" ) )
512 mStyle = qgis::make_unique< QgsSingleBoxScaleBarRenderer >();
514 else if ( styleName == QLatin1String(
"Double Box" ) )
516 mStyle = qgis::make_unique< QgsDoubleBoxScaleBarRenderer >();
518 else if ( styleName == QLatin1String(
"Line Ticks Middle" ) || styleName == QLatin1String(
"Line Ticks Down" ) || styleName == QLatin1String(
"Line Ticks Up" ) )
520 std::unique_ptr< QgsTicksScaleBarRenderer > tickStyle = qgis::make_unique< QgsTicksScaleBarRenderer >();
521 if ( styleName == QLatin1String(
"Line Ticks Middle" ) )
525 else if ( styleName == QLatin1String(
"Line Ticks Down" ) )
529 else if ( styleName == QLatin1String(
"Line Ticks Up" ) )
533 mStyle = std::move( tickStyle );
535 else if ( styleName == QLatin1String(
"Numeric" ) )
537 mStyle = qgis::make_unique< QgsNumericScaleBarRenderer >();
547 return mStyle->name();
594 composerScaleBarElem.setAttribute( QStringLiteral(
"height" ), QString::number( mSettings.
height() ) );
595 composerScaleBarElem.setAttribute( QStringLiteral(
"labelBarSpace" ), QString::number( mSettings.
labelBarSpace() ) );
596 composerScaleBarElem.setAttribute( QStringLiteral(
"boxContentSpace" ), QString::number( mSettings.
boxContentSpace() ) );
597 composerScaleBarElem.setAttribute( QStringLiteral(
"numSegments" ), mSettings.
numberOfSegments() );
598 composerScaleBarElem.setAttribute( QStringLiteral(
"numSegmentsLeft" ), mSettings.
numberOfSegmentsLeft() );
599 composerScaleBarElem.setAttribute( QStringLiteral(
"numUnitsPerSegment" ), QString::number( mSettings.
unitsPerSegment() ) );
600 composerScaleBarElem.setAttribute( QStringLiteral(
"segmentSizeMode" ), mSettings.
segmentSizeMode() );
601 composerScaleBarElem.setAttribute( QStringLiteral(
"minBarWidth" ), mSettings.
minimumBarWidth() );
602 composerScaleBarElem.setAttribute( QStringLiteral(
"maxBarWidth" ), mSettings.
maximumBarWidth() );
603 composerScaleBarElem.setAttribute( QStringLiteral(
"segmentMillimeters" ), QString::number( mSegmentMillimeters ) );
604 composerScaleBarElem.setAttribute( QStringLiteral(
"numMapUnitsPerScaleBarUnit" ), QString::number( mSettings.
mapUnitsPerScaleBarUnit() ) );
607 composerScaleBarElem.appendChild( textElem );
609 composerScaleBarElem.setAttribute( QStringLiteral(
"outlineWidth" ), QString::number( mSettings.
lineWidth() ) );
610 composerScaleBarElem.setAttribute( QStringLiteral(
"unitLabel" ), mSettings.
unitLabel() );
615 QDomElement numericFormatElem = doc.createElement( QStringLiteral(
"numericFormat" ) );
617 composerScaleBarElem.appendChild( numericFormatElem );
622 composerScaleBarElem.setAttribute( QStringLiteral(
"style" ), mStyle->name() );
628 composerScaleBarElem.setAttribute( QStringLiteral(
"mapUuid" ), mMap->
uuid() );
634 QDomElement fillColorElem = doc.createElement( QStringLiteral(
"fillColor" ) );
635 fillColorElem.setAttribute( QStringLiteral(
"red" ), QString::number( mSettings.
fillColor().red() ) );
636 fillColorElem.setAttribute( QStringLiteral(
"green" ), QString::number( mSettings.
fillColor().green() ) );
637 fillColorElem.setAttribute( QStringLiteral(
"blue" ), QString::number( mSettings.
fillColor().blue() ) );
638 fillColorElem.setAttribute( QStringLiteral(
"alpha" ), QString::number( mSettings.
fillColor().alpha() ) );
639 composerScaleBarElem.appendChild( fillColorElem );
642 QDomElement fillColor2Elem = doc.createElement( QStringLiteral(
"fillColor2" ) );
643 fillColor2Elem.setAttribute( QStringLiteral(
"red" ), QString::number( mSettings.
fillColor2().red() ) );
644 fillColor2Elem.setAttribute( QStringLiteral(
"green" ), QString::number( mSettings.
fillColor2().green() ) );
645 fillColor2Elem.setAttribute( QStringLiteral(
"blue" ), QString::number( mSettings.
fillColor2().blue() ) );
646 fillColor2Elem.setAttribute( QStringLiteral(
"alpha" ), QString::number( mSettings.
fillColor2().alpha() ) );
647 composerScaleBarElem.appendChild( fillColor2Elem );
650 QDomElement strokeColorElem = doc.createElement( QStringLiteral(
"strokeColor" ) );
651 strokeColorElem.setAttribute( QStringLiteral(
"red" ), QString::number( mSettings.
lineColor().red() ) );
652 strokeColorElem.setAttribute( QStringLiteral(
"green" ), QString::number( mSettings.
lineColor().green() ) );
653 strokeColorElem.setAttribute( QStringLiteral(
"blue" ), QString::number( mSettings.
lineColor().blue() ) );
654 strokeColorElem.setAttribute( QStringLiteral(
"alpha" ), QString::number( mSettings.
lineColor().alpha() ) );
655 composerScaleBarElem.appendChild( strokeColorElem );
658 composerScaleBarElem.setAttribute( QStringLiteral(
"labelVerticalPlacement" ), QString::number( static_cast< int >( mSettings.
labelVerticalPlacement() ) ) );
659 composerScaleBarElem.setAttribute( QStringLiteral(
"labelHorizontalPlacement" ), QString::number( static_cast< int >( mSettings.
labelHorizontalPlacement() ) ) );
662 composerScaleBarElem.setAttribute( QStringLiteral(
"alignment" ), QString::number( static_cast< int >( mSettings.
alignment() ) ) );
669 mSettings.
setHeight( itemElem.attribute( QStringLiteral(
"height" ), QStringLiteral(
"5.0" ) ).toDouble() );
670 mSettings.
setLabelBarSpace( itemElem.attribute( QStringLiteral(
"labelBarSpace" ), QStringLiteral(
"3.0" ) ).toDouble() );
671 mSettings.
setBoxContentSpace( itemElem.attribute( QStringLiteral(
"boxContentSpace" ), QStringLiteral(
"1.0" ) ).toDouble() );
672 mSettings.
setNumberOfSegments( itemElem.attribute( QStringLiteral(
"numSegments" ), QStringLiteral(
"2" ) ).toInt() );
673 mSettings.
setNumberOfSegmentsLeft( itemElem.attribute( QStringLiteral(
"numSegmentsLeft" ), QStringLiteral(
"0" ) ).toInt() );
674 mSettings.
setUnitsPerSegment( itemElem.attribute( QStringLiteral(
"numUnitsPerSegment" ), QStringLiteral(
"1.0" ) ).toDouble() );
675 mSettings.
setSegmentSizeMode( static_cast<QgsScaleBarSettings::SegmentSizeMode>( itemElem.attribute( QStringLiteral(
"segmentSizeMode" ), QStringLiteral(
"0" ) ).toInt() ) );
676 mSettings.
setMinimumBarWidth( itemElem.attribute( QStringLiteral(
"minBarWidth" ), QStringLiteral(
"50" ) ).toDouble() );
677 mSettings.
setMaximumBarWidth( itemElem.attribute( QStringLiteral(
"maxBarWidth" ), QStringLiteral(
"150" ) ).toDouble() );
678 mSegmentMillimeters = itemElem.attribute( QStringLiteral(
"segmentMillimeters" ), QStringLiteral(
"0.0" ) ).toDouble();
679 mSettings.
setMapUnitsPerScaleBarUnit( itemElem.attribute( QStringLiteral(
"numMapUnitsPerScaleBarUnit" ), QStringLiteral(
"1.0" ) ).toDouble() );
680 mSettings.
setLineWidth( itemElem.attribute( QStringLiteral(
"outlineWidth" ), QStringLiteral(
"0.3" ) ).toDouble() );
681 mSettings.
setUnitLabel( itemElem.attribute( QStringLiteral(
"unitLabel" ) ) );
685 QDomNodeList textFormatNodeList = itemElem.elementsByTagName( QStringLiteral(
"text-style" ) );
686 if ( !textFormatNodeList.isEmpty() )
688 QDomElement textFormatElem = textFormatNodeList.at( 0 ).toElement();
696 f.fromString( itemElem.attribute( QStringLiteral(
"font" ), QString() ) );
699 if ( f.pointSizeF() > 0 )
704 else if ( f.pixelSize() > 0 )
711 QDomNodeList numericFormatNodeList = itemElem.elementsByTagName( QStringLiteral(
"numericFormat" ) );
712 if ( !numericFormatNodeList.isEmpty() )
714 QDomElement numericFormatElem = numericFormatNodeList.at( 0 ).toElement();
720 QDomNodeList fillColorList = itemElem.elementsByTagName( QStringLiteral(
"fillColor" ) );
721 if ( !fillColorList.isEmpty() )
723 QDomElement fillColorElem = fillColorList.at( 0 ).toElement();
724 bool redOk, greenOk, blueOk, alphaOk;
725 int fillRed, fillGreen, fillBlue, fillAlpha;
727 fillRed = fillColorElem.attribute( QStringLiteral(
"red" ) ).toDouble( &redOk );
728 fillGreen = fillColorElem.attribute( QStringLiteral(
"green" ) ).toDouble( &greenOk );
729 fillBlue = fillColorElem.attribute( QStringLiteral(
"blue" ) ).toDouble( &blueOk );
730 fillAlpha = fillColorElem.attribute( QStringLiteral(
"alpha" ) ).toDouble( &alphaOk );
732 if ( redOk && greenOk && blueOk && alphaOk )
734 mSettings.
setFillColor( QColor( fillRed, fillGreen, fillBlue, fillAlpha ) );
739 mSettings.
setFillColor( QColor( itemElem.attribute( QStringLiteral(
"brushColor" ), QStringLiteral(
"#000000" ) ) ) );
743 QDomNodeList fillColor2List = itemElem.elementsByTagName( QStringLiteral(
"fillColor2" ) );
744 if ( !fillColor2List.isEmpty() )
746 QDomElement fillColor2Elem = fillColor2List.at( 0 ).toElement();
747 bool redOk, greenOk, blueOk, alphaOk;
748 int fillRed, fillGreen, fillBlue, fillAlpha;
750 fillRed = fillColor2Elem.attribute( QStringLiteral(
"red" ) ).toDouble( &redOk );
751 fillGreen = fillColor2Elem.attribute( QStringLiteral(
"green" ) ).toDouble( &greenOk );
752 fillBlue = fillColor2Elem.attribute( QStringLiteral(
"blue" ) ).toDouble( &blueOk );
753 fillAlpha = fillColor2Elem.attribute( QStringLiteral(
"alpha" ) ).toDouble( &alphaOk );
755 if ( redOk && greenOk && blueOk && alphaOk )
757 mSettings.
setFillColor2( QColor( fillRed, fillGreen, fillBlue, fillAlpha ) );
762 mSettings.
setFillColor2( QColor( itemElem.attribute( QStringLiteral(
"brush2Color" ), QStringLiteral(
"#ffffff" ) ) ) );
766 QDomNodeList strokeColorList = itemElem.elementsByTagName( QStringLiteral(
"strokeColor" ) );
767 if ( !strokeColorList.isEmpty() )
769 QDomElement strokeColorElem = strokeColorList.at( 0 ).toElement();
770 bool redOk, greenOk, blueOk, alphaOk;
771 int strokeRed, strokeGreen, strokeBlue, strokeAlpha;
773 strokeRed = strokeColorElem.attribute( QStringLiteral(
"red" ) ).toDouble( &redOk );
774 strokeGreen = strokeColorElem.attribute( QStringLiteral(
"green" ) ).toDouble( &greenOk );
775 strokeBlue = strokeColorElem.attribute( QStringLiteral(
"blue" ) ).toDouble( &blueOk );
776 strokeAlpha = strokeColorElem.attribute( QStringLiteral(
"alpha" ) ).toDouble( &alphaOk );
778 if ( redOk && greenOk && blueOk && alphaOk )
780 mSettings.
setLineColor( QColor( strokeRed, strokeGreen, strokeBlue, strokeAlpha ) );
781 QPen p = mSettings.
pen();
788 mSettings.
setLineColor( QColor( itemElem.attribute( QStringLiteral(
"penColor" ), QStringLiteral(
"#000000" ) ) ) );
789 QPen p = mSettings.
pen();
795 QDomNodeList textColorList = itemElem.elementsByTagName( QStringLiteral(
"textColor" ) );
796 if ( !textColorList.isEmpty() )
798 QDomElement textColorElem = textColorList.at( 0 ).toElement();
799 bool redOk, greenOk, blueOk, alphaOk;
800 int textRed, textGreen, textBlue, textAlpha;
802 textRed = textColorElem.attribute( QStringLiteral(
"red" ) ).toDouble( &redOk );
803 textGreen = textColorElem.attribute( QStringLiteral(
"green" ) ).toDouble( &greenOk );
804 textBlue = textColorElem.attribute( QStringLiteral(
"blue" ) ).toDouble( &blueOk );
805 textAlpha = textColorElem.attribute( QStringLiteral(
"alpha" ) ).toDouble( &alphaOk );
807 if ( redOk && greenOk && blueOk && alphaOk )
812 else if ( itemElem.hasAttribute( QStringLiteral(
"fontColor" ) ) )
815 c.setNamedColor( itemElem.attribute( QStringLiteral(
"fontColor" ), QStringLiteral(
"#000000" ) ) );
820 QString styleString = itemElem.attribute( QStringLiteral(
"style" ), QString() );
821 setStyle( styleString.toLocal8Bit().data() );
823 if ( itemElem.attribute( QStringLiteral(
"unitType" ) ).isEmpty() )
826 switch ( itemElem.attribute( QStringLiteral(
"units" ) ).toInt() )
848 mSettings.
setLabelVerticalPlacement( static_cast< QgsScaleBarSettings::LabelVerticalPlacement >( itemElem.attribute( QStringLiteral(
"labelVerticalPlacement" ), QStringLiteral(
"0" ) ).toInt() ) );
849 mSettings.
setLabelHorizontalPlacement( static_cast< QgsScaleBarSettings::LabelHorizontalPlacement >( itemElem.attribute( QStringLiteral(
"labelHorizontalPlacement" ), QStringLiteral(
"0" ) ).toInt() ) );
851 mSettings.
setAlignment( static_cast< QgsScaleBarSettings::Alignment >( itemElem.attribute( QStringLiteral(
"alignment" ), QStringLiteral(
"0" ) ).toInt() ) );
854 disconnectCurrentMap();
856 mMapUuid = itemElem.attribute( QStringLiteral(
"mapUuid" ) );
863 if (
mLayout && !mMapUuid.isEmpty() )
865 disconnectCurrentMap();
870 connect( mMap, &QObject::destroyed,
this, &QgsLayoutItemScaleBar::disconnectCurrentMap );
QgsUnitTypes::DistanceUnit guessUnits() const
Attempts to guess the most reasonable unit choice for the scalebar, given the current linked map's sc...
QgsUnitTypes::DistanceUnit lengthUnits() const
Returns the units of distance for length calculations made by this object.
The class is used as a container of context for various read/write operations on other objects...
QColor valueAsColor(int key, const QgsExpressionContext &context, const QColor &defaultColor=QColor(), bool *ok=nullptr) const
Calculates the current value of the property with the specified key and interprets it as a color...
QgsExpressionContext createExpressionContext() const override
This method needs to be reimplemented in all classes which implement this interface and return an exp...
void setMinimumBarWidth(double width)
Sets the minimum width (in millimeters) for scale bar segments.
A rectangle specified with double values.
double mapUnitsPerScaleBarUnit() const
Returns the number of map units per scale bar unit used by the scalebar.
Scale bar segment size is calculated to fit a size range.
QBrush brush() const
Returns the primary brush used for filling the scalebar.
QString style() const
Returns the scale bar style name.
void setOpacity(double opacity)
Sets the text's opacity.
void setLineColor(const QColor &color)
Sets the color used for lines in the scalebar.
void setLineJoinStyle(Qt::PenJoinStyle style)
Sets the join style used when drawing the lines in the scalebar.
double opacity() const
Returns the text's opacity.
Base class for graphical items within a QgsLayout.
QgsLayoutSize minimumSize() const override
Returns the minimum allowed size of the item, if applicable, or an empty size if item can be freely r...
void readXml(const QDomElement &elem, const QgsReadWriteContext &context)
Read settings from a DOM element.
void setNumericFormat(QgsNumericFormat *format)
Sets the numeric format used for numbers in the scalebar.
QString unitLabel() const
Returns the label for units.
Q_DECL_DEPRECATED QFont font() const
Returns the font used for drawing text in the scalebar.
double valueAsDouble(int key, const QgsExpressionContext &context, double defaultValue=0.0, bool *ok=nullptr) const
Calculates the current value of the property with the specified key and interprets it as a double...
void refreshDataDefinedProperty(QgsLayoutObject::DataDefinedProperty property=QgsLayoutObject::AllProperties) override
Refreshes a data defined property for the item by reevaluating the property's value and redrawing the...
This class is a composition of two QSettings instances:
QPen pen() const
Returns the pen used for drawing outlines in the scalebar.
LabelVerticalPlacement
Label vertical placement.
double segmentWidth
The width, in millimeters, of each individual segment drawn.
Alignment alignment() const
Returns the scalebar alignment.
void setPen(const QPen &pen)
Sets the pen used for drawing outlines in the scalebar.
Q_DECL_DEPRECATED void setFontColor(const QColor &color)
Sets the color used for drawing text in the scalebar.
QVariant value(const QString &key, const QVariant &defaultValue=QVariant(), Section section=NoSection) const
Returns the value for setting key.
QColor fillColor2() const
Returns the secondary color used for fills in the scalebar.
void setLinkedMap(QgsLayoutItemMap *map)
Sets the map item linked to the scalebar.
A class to represent a 2D point.
void extentChanged()
Emitted when the map's extent changes.
SegmentSizeMode segmentSizeMode() const
Returns the size mode for the scale bar segments.
void setBoxContentSpace(double space)
Sets the space (margin) between the scalebar box and content in millimeters.
QgsLayoutSize sizeWithUnits() const
Returns the item's current size, including units.
void setLineCapStyle(Qt::PenCapStyle style)
Sets the cap style used when drawing the lines in the scalebar.
void setLabelVerticalPlacement(LabelVerticalPlacement placement)
Sets the vertical placement of text labels.
void setFont(const QFont &font)
Sets the font used for rendering text.
double lineWidth() const
Returns the line width in millimeters for lines in the scalebar.
#define Q_NOWARN_DEPRECATED_PUSH
static double calculatePrettySize(double minimumSize, double maximumSize)
Calculates a "pretty" size which falls between the range [minimumSize, maximumSize].
QColor color() const
Returns the color that text will be rendered in.
Alignment
Scalebar alignment.
static QIcon getThemeIcon(const QString &name)
Helper to get a theme icon.
void update()
Adjusts the scale bar box size and updates the item.
static QgsNumericFormatRegistry * numericFormatRegistry()
Gets the registry of available numeric formats.
QgsUnitTypes::DistanceUnit mapUnits
void setAlignment(QgsScaleBarSettings::Alignment alignment)
Sets the scalebar alignment.
bool setEllipsoid(const QString &ellipsoid)
Sets the ellipsoid by its acronym.
QColor lineColor() const
Returns the color used for lines in the scalebar.
Item can only be placed on layers with other items of the same type, but multiple items of this type ...
static Q_INVOKABLE QgsUnitTypes::DistanceUnit decodeDistanceUnit(const QString &string, bool *ok=nullptr)
Decodes a distance unit from a string.
const QgsCoordinateReferenceSystem & crs
An interface for classes which can visit style entity (e.g.
const QgsNumericFormat * numericFormat() const
Returns the numeric format used for numbers in the scalebar.
void setSegmentSizeMode(QgsScaleBarSettings::SegmentSizeMode mode)
Sets the size mode for scale bar segments.
void setStyle(const QString &name)
Sets the scale bar style by name.
virtual void refreshDataDefinedProperty(QgsLayoutObject::DataDefinedProperty property=QgsLayoutObject::AllProperties)
Refreshes a data defined property for the item by reevaluating the property's value and redrawing the...
static Qt::PenJoinStyle decodePenJoinStyle(const QString &str)
LabelHorizontalPlacement
Label horizontal placement.
virtual bool visit(const QgsStyleEntityVisitorInterface::StyleLeaf &entity)
Called when the visitor will visit a style entity.
QColor fillColor() const
Returns the color used for fills in the scalebar.
int type() const override
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
void refreshItemSize()
Refreshes an item's size by rechecking it against any possible item fixed or minimum sizes...
double height() const
Returns the scalebar height (in millimeters).
void setMaximumBarWidth(double maxWidth)
Sets the maximum width (in millimeters) for scale bar segments.
bool accept(QgsStyleEntityVisitorInterface *visitor) const override
Accepts the specified style entity visitor, causing it to visit all style entities associated with th...
LabelVerticalPlacement labelVerticalPlacement() const
Returns the vertical placement of text labels.
void setFillColor(const QColor &color)
Sets the color used for fills in the scalebar.
QgsRectangle extent() const
Returns the current map extent.
Layout graphical items for displaying a map.
static Q_INVOKABLE QString toAbbreviatedString(QgsUnitTypes::DistanceUnit unit)
Returns a translated abbreviation representing a distance unit.
int numberOfSegments() const
Returns the number of segments included in the scalebar.
double scale
Scale denominator.
void setSize(double size)
Sets the size for rendered text.
Scalebar secondary fill color.
QgsPropertyCollection mDataDefinedProperties
const QgsLayout * layout() const
Returns the layout the object is attached to.
void setNumberOfSegments(int segments)
Sets the number of segments included in the scalebar.
double minimumBarWidth() const
Returns the minimum width (in millimeters) for scale bar segments.
void setLineCapStyle(Qt::PenCapStyle style)
Sets the cap style used when drawing the lines in the scalebar.
void resizeToMinimumWidth()
Resizes the scale bar to its minimum width, without changing the height.
This class provides a method of storing measurements for use in QGIS layouts using a variety of diffe...
void setMapUnitsPerScaleBarUnit(double units)
Sets the number of map units per scale bar unit used by the scalebar.
QSizeF size
Destination size for scalebar.
QDomElement writeXml(QDomDocument &doc, const QgsReadWriteContext &context) const
Write settings into a DOM element.
void setAlignment(Alignment alignment)
Sets the scalebar alignment.
QgsUnitTypes::DistanceUnit units() const
Returns the distance units used by the scalebar.
double width() const
Returns the width of the rectangle.
void finalizeRestoreFromXml() override
Called after all pending items have been restored from XML.
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
QgsRenderContext & renderContext()
Returns a reference to the context's render context.
double boxContentSpace() const
Returns the spacing (margin) between the scalebar box and content in millimeters. ...
void setMinimumBarWidth(double minWidth)
Sets the minimum width (in millimeters) for scale bar segments.
double labelBarSpace() const
Returns the spacing (in millimeters) between labels and the scalebar.
QPointer< QgsLayout > mLayout
virtual void attemptResize(const QgsLayoutSize &size, bool includesFrame=false)
Attempts to resize the item to a specified target size.
void setColor(const QColor &color)
Sets the color that text will be rendered in.
void setMaximumBarWidth(double width)
Sets the maximum width (in millimeters) for scale bar segments.
Degrees, for planar geographic CRS distance measurements.
void setBoxContentSpace(double space)
Sets the space (margin) between the scalebar box and content in millimeters.
void setSizeUnit(QgsUnitTypes::RenderUnit unit)
Sets the units for the size of rendered text.
void setUnitsPerSegment(double units)
Sets the number of scalebar units per segment.
static bool setFromXmlChildNode(QFont &font, const QDomElement &element, const QString &childNode)
Sets the properties of a font to match the properties stored in an XML child node.
void setNumericFormat(QgsNumericFormat *format)
Sets the numeric format used for numbers in the scalebar.
void setSegmentSizeMode(SegmentSizeMode mode)
Sets the size mode for scale bar segments.
QgsUnitTypes::LayoutUnit units() const
Returns the units for the size.
static Qt::PenCapStyle decodePenCapStyle(const QString &str)
double unitsPerSegment() const
Returns the number of scalebar units per segment.
void setFillColor2(const QColor &color)
Sets the secondary color used for fills in the scalebar.
void setUnitLabel(const QString &label)
Sets the label for units.
A text format entity for QgsStyle databases.
SegmentSizeMode
Modes for setting size for scale bar segments.
Base class for layouts, which can contain items such as maps, labels, scalebars, etc.
Scale bar segment size is fixed to a map unit.
QIcon icon() const override
Returns the item's icon.
LabelHorizontalPlacement labelHorizontalPlacement() const
Returns the horizontal placement of text labels.
double maximumBarWidth() const
Returns the maximum width (in millimeters) for scale bar segments.
bool readPropertiesFromElement(const QDomElement &element, const QDomDocument &document, const QgsReadWriteContext &context) override
Sets item state from a DOM element.
void setLabelHorizontalPlacement(QgsScaleBarSettings::LabelHorizontalPlacement placement)
Sets the horizontal placement of text labels.
static Q_INVOKABLE QString encodeUnit(QgsUnitTypes::DistanceUnit unit)
Encodes a distance unit to a string.
void setBackgroundEnabled(bool drawBackground)
Sets whether this item has a background drawn under it or not.
QgsTextFormat & textFormat()
Returns the text format used for drawing text in the scalebar.
Q_DECL_DEPRECATED void setFont(const QFont &font)
Sets the font used for drawing text in the scalebar.
double yMinimum() const
Returns the y minimum value (bottom side of rectangle).
Contains settings and helpers relating to a render of a QgsLayoutItem.
DistanceUnit
Units of distance.
double xMaximum() const
Returns the x maximum value (right side of rectangle).
virtual QString displayName() const
Gets item display name.
void setHeight(double height)
Sets the scalebar height (in millimeters).
void setTextFormat(const QgsTextFormat &format)
Sets the text format used for drawing text in the scalebar.
#define Q_NOWARN_DEPRECATED_POP
A general purpose distance and area calculator, capable of performing ellipsoid based calculations...
ExportLayerBehavior
Behavior of item when exporting to layered outputs.
QgsLayoutItemScaleBar(QgsLayout *layout)
Constructor for QgsLayoutItemScaleBar, with the specified parent layout.
void draw(QgsLayoutItemRenderContext &context) override
Draws the item's contents using the specified item render context.
Points (e.g., for font sizes)
QgsCoordinateReferenceSystem crs() const
Returns coordinate reference system used for rendering the map.
void setUnits(QgsUnitTypes::DistanceUnit units)
Sets the distance units used by the scalebar.
void setLineJoinStyle(Qt::PenJoinStyle style)
Sets the join style used when drawing the lines in the scalebar.
double scale() const
Returns the map scale.
void setLineWidth(double width)
Sets the line width in millimeters for lines in the scalebar.
virtual QString uuid() const
Returns the item identification string.
This class represents a coordinate reference system (CRS).
void setLabelBarSpace(double space)
Sets the spacing (in millimeters) between labels and the scalebar.
bool writePropertiesToElement(QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context) const override
Stores item state within an XML DOM element.
const QgsNumericFormat * numericFormat() const
Returns the numeric format used for numbers in the scalebar.
void applyDefaultSettings()
Applies the default scalebar settings to the scale bar.
void setLabelHorizontalPlacement(LabelHorizontalPlacement placement)
Sets the horizontal placement of text labels.
void setBrush2(const QBrush &brush)
Sets the secondary brush used for filling the scalebar.
double xMinimum() const
Returns the x minimum value (left side of rectangle).
A layout item subclass for scale bars.
void setNumberOfSegmentsLeft(int segments)
Sets the number of segments included in the left part of the scalebar.
double unitsPerSegment() const
Returns the number of scalebar units per segment.
Q_DECL_DEPRECATED QColor fontColor() const
Returns the color used for drawing text in the scalebar.
Qt::PenCapStyle lineCapStyle() const
Returns the cap style used for drawing lines in the scalebar.
void setSourceCrs(const QgsCoordinateReferenceSystem &crs, const QgsCoordinateTransformContext &context)
Sets source spatial reference system crs.
void setNumberOfSegmentsLeft(int segments)
Sets the number of segments included in the left part of the scalebar.
QBrush brush2() const
Returns the secondary brush for the scalebar.
void setTextFormat(const QgsTextFormat &format)
Sets the text format used for drawing text in the scalebar.
static QString encodePenCapStyle(Qt::PenCapStyle style)
Container for all settings relating to text rendering.
This class provides a method of storing sizes, consisting of a width and height, for use in QGIS layo...
Qt::PenJoinStyle lineJoinStyle() const
Returns the join style used for drawing lines in the scalebar.
static Q_INVOKABLE double fromUnitToUnitFactor(QgsUnitTypes::DistanceUnit fromUnit, QgsUnitTypes::DistanceUnit toUnit)
Returns the conversion factor between the specified distance units.
QgsTextFormat textFormat() const
Returns the text format used for drawing text in the scalebar.
void setLabelVerticalPlacement(QgsScaleBarSettings::LabelVerticalPlacement placement)
Sets the vertical placement of text labels.
int numberOfSegmentsLeft() const
Returns the number of segments included in the left part of the scalebar.
void setUnits(QgsUnitTypes::DistanceUnit units)
Sets the distance units used by the scalebar.
void changed()
Emitted when the object's properties change.
DataDefinedProperty
Data defined properties for different item types.
void setUnitsPerSegment(double units)
Sets the number of scalebar units per segment.
void setBrush(const QBrush &brush)
Sets the primary brush used for filling the scalebar.
QFont font() const
Returns the font used for rendering text.
Q_DECL_DEPRECATED void setFont(const QFont &font)
Sets the font used for drawing text in the scalebar.
void setUnitLabel(const QString &label)
Sets the label for units.
double measureLine(const QVector< QgsPointXY > &points) const
Measures the length of a line with multiple segments.
Contains information relating to the style entity currently being visited.
static QString encodePenJoinStyle(Qt::PenJoinStyle style)
void applyDefaultSize(QgsUnitTypes::DistanceUnit units=QgsUnitTypes::DistanceMeters)
Applies the default size to the scale bar (scale bar 1/5 of map item width)
void setWidth(const double width)
Sets the width for the size.
void setNumberOfSegments(int segments)
Sets the number of segments included in the scalebar.
Render ticks crossing line.
static QgsLayoutItemScaleBar * create(QgsLayout *layout)
Returns a new scale bar item for the specified layout.
QgsUnitTypes::DistanceUnit units() const
Returns the distance units used by the scalebar.
ExportLayerBehavior exportLayerBehavior() const override
Returns the behavior of this item during exporting to layered exports (e.g.
Contains parameters regarding scalebar calculations.