QGIS API Documentation
3.18.1-Zürich (202f1bf7e5)
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Container for settings relating to a text background object. More...
#include <qgstextbackgroundsettings.h>
Public Types | |
enum | RotationType { RotationSync = 0 , RotationOffset , RotationFixed } |
Methods for determining the rotation of the background shape. More... | |
enum | ShapeType { ShapeRectangle = 0 , ShapeSquare , ShapeEllipse , ShapeCircle , ShapeSVG , ShapeMarkerSymbol } |
Background shape types. More... | |
enum | SizeType { SizeBuffer = 0 , SizeFixed , SizePercent } |
Methods for determining the background shape size. More... | |
Public Member Functions | |
QgsTextBackgroundSettings () | |
QgsTextBackgroundSettings (const QgsTextBackgroundSettings &other) | |
Copy constructor. More... | |
~QgsTextBackgroundSettings () | |
QPainter::CompositionMode | blendMode () const |
Returns the blending mode used for drawing the background shape. More... | |
bool | enabled () const |
Returns whether the background is enabled. More... | |
QColor | fillColor () const |
Returns the color used for filing the background shape. More... | |
Qt::PenJoinStyle | joinStyle () const |
Returns the join style used for drawing the background shape. More... | |
QgsMarkerSymbol * | markerSymbol () const |
Returns the marker symbol to be rendered in the background. More... | |
QPointF | offset () const |
Returns the offset used for drawing the background shape. More... | |
QgsMapUnitScale | offsetMapUnitScale () const |
Returns the map unit scale object for the shape offset. More... | |
QgsUnitTypes::RenderUnit | offsetUnit () const |
Returns the units used for the shape's offset. More... | |
double | opacity () const |
Returns the background shape's opacity. More... | |
bool | operator!= (const QgsTextBackgroundSettings &other) const |
QgsTextBackgroundSettings & | operator= (const QgsTextBackgroundSettings &other) |
bool | operator== (const QgsTextBackgroundSettings &other) const |
const QgsPaintEffect * | paintEffect () const |
Returns the current paint effect for the background shape. More... | |
QSizeF | radii () const |
Returns the radii used for rounding the corners of shapes. More... | |
QgsMapUnitScale | radiiMapUnitScale () const |
Returns the map unit scale object for the shape radii. More... | |
QgsUnitTypes::RenderUnit | radiiUnit () const |
Returns the units used for the shape's radii. More... | |
void | readFromLayer (QgsVectorLayer *layer) |
Reads settings from a layer's custom properties (for QGIS 2.x projects). More... | |
void | readXml (const QDomElement &elem, const QgsReadWriteContext &context) |
Read settings from a DOM element. More... | |
QSet< QString > | referencedFields (const QgsRenderContext &context) const |
Returns all field names referenced by the configuration (e.g. More... | |
double | rotation () const |
Returns the rotation for the background shape, in degrees clockwise. More... | |
RotationType | rotationType () const |
Returns the method used for rotating the background shape. More... | |
void | setBlendMode (QPainter::CompositionMode mode) |
Sets the blending mode used for drawing the background shape. More... | |
void | setEnabled (bool enabled) |
Sets whether the text background will be drawn. More... | |
void | setFillColor (const QColor &color) |
Sets the color used for filing the background shape. More... | |
void | setJoinStyle (Qt::PenJoinStyle style) |
Sets the join style used for drawing the background shape. More... | |
void | setMarkerSymbol (QgsMarkerSymbol *symbol) |
Sets the current marker symbol for the background shape. More... | |
void | setOffset (QPointF offset) |
Sets the offset used for drawing the background shape. More... | |
void | setOffsetMapUnitScale (const QgsMapUnitScale &scale) |
Sets the map unit scale object for the shape offset. More... | |
void | setOffsetUnit (QgsUnitTypes::RenderUnit units) |
Sets the units used for the shape's offset. More... | |
void | setOpacity (double opacity) |
Sets the background shape's opacity. More... | |
void | setPaintEffect (QgsPaintEffect *effect) |
Sets the current paint effect for the background shape. More... | |
void | setRadii (QSizeF radii) |
Sets the radii used for rounding the corners of shapes. More... | |
void | setRadiiMapUnitScale (const QgsMapUnitScale &scale) |
Sets the map unit scale object for the shape radii. More... | |
void | setRadiiUnit (QgsUnitTypes::RenderUnit units) |
Sets the units used for the shape's radii. More... | |
void | setRotation (double rotation) |
Sets the rotation for the background shape, in degrees clockwise. More... | |
void | setRotationType (RotationType type) |
Sets the method used for rotating the background shape. More... | |
void | setSize (QSizeF size) |
Sets the size of the background shape. More... | |
void | setSizeMapUnitScale (const QgsMapUnitScale &scale) |
Sets the map unit scale object for the shape size. More... | |
void | setSizeType (SizeType type) |
Sets the method used to determine the size of the background shape (e.g., fixed size or buffer around text). More... | |
void | setSizeUnit (QgsUnitTypes::RenderUnit unit) |
Sets the units used for the shape's size. More... | |
void | setStrokeColor (const QColor &color) |
Sets the color used for outlining the background shape. More... | |
void | setStrokeWidth (double width) |
Sets the width of the shape's stroke (stroke). More... | |
void | setStrokeWidthMapUnitScale (const QgsMapUnitScale &scale) |
Sets the map unit scale object for the shape stroke width. More... | |
void | setStrokeWidthUnit (QgsUnitTypes::RenderUnit units) |
Sets the units used for the shape's stroke width. More... | |
void | setSvgFile (const QString &file) |
Sets the path to the background SVG file. More... | |
void | setType (ShapeType type) |
Sets the type of background shape to draw (e.g., square, ellipse, SVG). More... | |
QSizeF | size () const |
Returns the size of the background shape. More... | |
QgsMapUnitScale | sizeMapUnitScale () const |
Returns the map unit scale object for the shape size. More... | |
SizeType | sizeType () const |
Returns the method used to determine the size of the background shape (e.g., fixed size or buffer around text). More... | |
QgsUnitTypes::RenderUnit | sizeUnit () const |
Returns the units used for the shape's size. More... | |
QColor | strokeColor () const |
Returns the color used for outlining the background shape. More... | |
double | strokeWidth () const |
Returns the width of the shape's stroke (stroke). More... | |
QgsMapUnitScale | strokeWidthMapUnitScale () const |
Returns the map unit scale object for the shape stroke width. More... | |
QgsUnitTypes::RenderUnit | strokeWidthUnit () const |
Returns the units used for the shape's stroke width. More... | |
QString | svgFile () const |
Returns the absolute path to the background SVG file, if set. More... | |
ShapeType | type () const |
Returns the type of background shape (e.g., square, ellipse, SVG). More... | |
void | updateDataDefinedProperties (QgsRenderContext &context, const QgsPropertyCollection &properties) |
Updates the format by evaluating current values of data defined properties. More... | |
QDomElement | writeXml (QDomDocument &doc, const QgsReadWriteContext &context) const |
Write settings into a DOM element. More... | |
Container for settings relating to a text background object.
Definition at line 45 of file qgstextbackgroundsettings.h.
Methods for determining the rotation of the background shape.
Enumerator | |
---|---|
RotationSync | Shape rotation is synced with text rotation. |
RotationOffset | Shape rotation is offset from text rotation. |
RotationFixed | Shape rotation is a fixed angle. |
Definition at line 75 of file qgstextbackgroundsettings.h.
Background shape types.
Enumerator | |
---|---|
ShapeRectangle | Rectangle. |
ShapeSquare | Square - buffered sizes only. |
ShapeEllipse | Ellipse. |
ShapeCircle | Circle. |
ShapeSVG | SVG file. |
ShapeMarkerSymbol | Marker symbol. |
Definition at line 52 of file qgstextbackgroundsettings.h.
Methods for determining the background shape size.
Enumerator | |
---|---|
SizeBuffer | Shape size is determined by adding a buffer margin around text. |
SizeFixed | Fixed size. |
SizePercent | Shape size is determined by percent of text size. |
Definition at line 65 of file qgstextbackgroundsettings.h.
QgsTextBackgroundSettings::QgsTextBackgroundSettings | ( | ) |
Definition at line 25 of file qgstextbackgroundsettings.cpp.
QgsTextBackgroundSettings::QgsTextBackgroundSettings | ( | const QgsTextBackgroundSettings & | other | ) |
Copy constructor.
other | source QgsTextBackgroundSettings |
Definition at line 30 of file qgstextbackgroundsettings.cpp.
QgsTextBackgroundSettings::~QgsTextBackgroundSettings | ( | ) |
Definition at line 42 of file qgstextbackgroundsettings.cpp.
QPainter::CompositionMode QgsTextBackgroundSettings::blendMode | ( | ) | const |
Returns the blending mode used for drawing the background shape.
Definition at line 260 of file qgstextbackgroundsettings.cpp.
bool QgsTextBackgroundSettings::enabled | ( | ) | const |
Returns whether the background is enabled.
Definition at line 90 of file qgstextbackgroundsettings.cpp.
QColor QgsTextBackgroundSettings::fillColor | ( | ) | const |
Returns the color used for filing the background shape.
Definition at line 270 of file qgstextbackgroundsettings.cpp.
Qt::PenJoinStyle QgsTextBackgroundSettings::joinStyle | ( | ) | const |
Returns the join style used for drawing the background shape.
Definition at line 320 of file qgstextbackgroundsettings.cpp.
QgsMarkerSymbol * QgsTextBackgroundSettings::markerSymbol | ( | ) | const |
Returns the marker symbol to be rendered in the background.
Ownership remains with the background settings.
Definition at line 120 of file qgstextbackgroundsettings.cpp.
QPointF QgsTextBackgroundSettings::offset | ( | ) | const |
Returns the offset used for drawing the background shape.
Units are determined via offsetUnit().
Definition at line 190 of file qgstextbackgroundsettings.cpp.
QgsMapUnitScale QgsTextBackgroundSettings::offsetMapUnitScale | ( | ) | const |
Returns the map unit scale object for the shape offset.
This is only used if the offsetUnit() is set to QgsUnitTypes::RenderMapUnit.
Definition at line 210 of file qgstextbackgroundsettings.cpp.
QgsUnitTypes::RenderUnit QgsTextBackgroundSettings::offsetUnit | ( | ) | const |
Returns the units used for the shape's offset.
Definition at line 200 of file qgstextbackgroundsettings.cpp.
double QgsTextBackgroundSettings::opacity | ( | ) | const |
Returns the background shape's opacity.
The opacity is a double value between 0 (fully transparent) and 1 (totally opaque).
Definition at line 250 of file qgstextbackgroundsettings.cpp.
bool QgsTextBackgroundSettings::operator!= | ( | const QgsTextBackgroundSettings & | other | ) | const |
Definition at line 85 of file qgstextbackgroundsettings.cpp.
QgsTextBackgroundSettings & QgsTextBackgroundSettings::operator= | ( | const QgsTextBackgroundSettings & | other | ) |
Definition at line 36 of file qgstextbackgroundsettings.cpp.
bool QgsTextBackgroundSettings::operator== | ( | const QgsTextBackgroundSettings & | other | ) | const |
Definition at line 47 of file qgstextbackgroundsettings.cpp.
const QgsPaintEffect * QgsTextBackgroundSettings::paintEffect | ( | ) | const |
Returns the current paint effect for the background shape.
Definition at line 330 of file qgstextbackgroundsettings.cpp.
QSizeF QgsTextBackgroundSettings::radii | ( | ) | const |
Returns the radii used for rounding the corners of shapes.
Units are retrieved through radiiUnit().
Definition at line 220 of file qgstextbackgroundsettings.cpp.
QgsMapUnitScale QgsTextBackgroundSettings::radiiMapUnitScale | ( | ) | const |
Returns the map unit scale object for the shape radii.
This is only used if the radiiUnit() is set to QgsUnitTypes::RenderMapUnit.
Definition at line 240 of file qgstextbackgroundsettings.cpp.
QgsUnitTypes::RenderUnit QgsTextBackgroundSettings::radiiUnit | ( | ) | const |
Returns the units used for the shape's radii.
Definition at line 230 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::readFromLayer | ( | QgsVectorLayer * | layer | ) |
Reads settings from a layer's custom properties (for QGIS 2.x projects).
layer | source vector layer |
Definition at line 340 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::readXml | ( | const QDomElement & | elem, |
const QgsReadWriteContext & | context | ||
) |
Read settings from a DOM element.
Definition at line 468 of file qgstextbackgroundsettings.cpp.
QSet< QString > QgsTextBackgroundSettings::referencedFields | ( | const QgsRenderContext & | context | ) | const |
Returns all field names referenced by the configuration (e.g.
from data defined properties).
Definition at line 814 of file qgstextbackgroundsettings.cpp.
double QgsTextBackgroundSettings::rotation | ( | ) | const |
Returns the rotation for the background shape, in degrees clockwise.
Definition at line 180 of file qgstextbackgroundsettings.cpp.
QgsTextBackgroundSettings::RotationType QgsTextBackgroundSettings::rotationType | ( | ) | const |
Returns the method used for rotating the background shape.
Definition at line 170 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setBlendMode | ( | QPainter::CompositionMode | mode | ) |
Sets the blending mode used for drawing the background shape.
mode | blending mode |
Definition at line 265 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setEnabled | ( | bool | enabled | ) |
Sets whether the text background will be drawn.
enabled | set to true to draw background |
Definition at line 95 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setFillColor | ( | const QColor & | color | ) |
Sets the color used for filing the background shape.
color | background color |
Definition at line 275 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setJoinStyle | ( | Qt::PenJoinStyle | style | ) |
Sets the join style used for drawing the background shape.
style | join style |
Definition at line 325 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setMarkerSymbol | ( | QgsMarkerSymbol * | symbol | ) |
Sets the current marker symbol for the background shape.
Ownership is transferred to the background settings.
Definition at line 125 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setOffset | ( | QPointF | offset | ) |
Sets the offset used for drawing the background shape.
Units are specified using setOffsetUnit().
offset | offset for shape |
Definition at line 195 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setOffsetMapUnitScale | ( | const QgsMapUnitScale & | scale | ) |
Sets the map unit scale object for the shape offset.
This is only used if the offsetUnit() is set to QgsUnitTypes::RenderMapUnit.
scale | scale for shape offset |
Definition at line 215 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setOffsetUnit | ( | QgsUnitTypes::RenderUnit | units | ) |
Sets the units used for the shape's offset.
units | offset units |
Definition at line 205 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setOpacity | ( | double | opacity | ) |
Sets the background shape's opacity.
opacity | opacity as a double value between 0 (fully transparent) and 1 (totally opaque) |
Definition at line 255 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setPaintEffect | ( | QgsPaintEffect * | effect | ) |
Sets the current paint effect for the background shape.
effect | paint effect. Ownership is transferred to the background settings. |
Definition at line 335 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setRadii | ( | QSizeF | radii | ) |
Sets the radii used for rounding the corners of shapes.
This is only used if type() is set to QgsTextBackgroundSettings::ShapeRectangle or QgsTextBackgroundSettings::ShapeSquare.
radii | QSizeF representing horizontal and vertical radii for rounded corners. Units are specified through setRadiiUnit() |
Definition at line 225 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setRadiiMapUnitScale | ( | const QgsMapUnitScale & | scale | ) |
Sets the map unit scale object for the shape radii.
This is only used if the radiiUnit() is set to QgsUnitTypes::RenderMapUnit.
scale | scale for shape radii |
Definition at line 245 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setRadiiUnit | ( | QgsUnitTypes::RenderUnit | units | ) |
Sets the units used for the shape's radii.
units | radii units |
Definition at line 235 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setRotation | ( | double | rotation | ) |
Sets the rotation for the background shape, in degrees clockwise.
Definition at line 185 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setRotationType | ( | QgsTextBackgroundSettings::RotationType | type | ) |
Sets the method used for rotating the background shape.
type | rotation method |
Definition at line 175 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setSize | ( | QSizeF | size | ) |
Sets the size of the background shape.
The meaning of the size depends on the current sizeType(), e.g., for size types of QgsTextBackgroundSettings::SizeFixed the size will represent the actual width and height of the shape, for QgsTextBackgroundSettings::SizeBuffer the size will represent the horizontal and vertical margins to add to the text when calculating the size of the shape.
size | QSizeF representing horizontal and vertical size components for shape |
Definition at line 145 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setSizeMapUnitScale | ( | const QgsMapUnitScale & | scale | ) |
Sets the map unit scale object for the shape size.
This is only used if the sizeUnit() is set to QgsUnitTypes::RenderMapUnit.
scale | scale for shape size |
Definition at line 165 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setSizeType | ( | QgsTextBackgroundSettings::SizeType | type | ) |
Sets the method used to determine the size of the background shape (e.g., fixed size or buffer around text).
type | size method |
Definition at line 135 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setSizeUnit | ( | QgsUnitTypes::RenderUnit | unit | ) |
Sets the units used for the shape's size.
This value has no meaning if the sizeType() is set to QgsTextBackgroundSettings::SizePercent.
unit | size units |
Definition at line 155 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setStrokeColor | ( | const QColor & | color | ) |
Sets the color used for outlining the background shape.
color | stroke color |
Definition at line 285 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setStrokeWidth | ( | double | width | ) |
Sets the width of the shape's stroke (stroke).
Units are specified through setStrokeWidthUnit().
Definition at line 295 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setStrokeWidthMapUnitScale | ( | const QgsMapUnitScale & | scale | ) |
Sets the map unit scale object for the shape stroke width.
This is only used if the strokeWidthUnit() is set to QgsUnitTypes::RenderMapUnit.
scale | scale for shape stroke width |
Definition at line 315 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setStrokeWidthUnit | ( | QgsUnitTypes::RenderUnit | units | ) |
Sets the units used for the shape's stroke width.
units | stroke width units |
Definition at line 305 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setSvgFile | ( | const QString & | file | ) |
Sets the path to the background SVG file.
This is only used if type() is set to QgsTextBackgroundSettings::ShapeSVG. The path must be absolute.
file | Absolute SVG file path |
Definition at line 115 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::setType | ( | QgsTextBackgroundSettings::ShapeType | type | ) |
Sets the type of background shape to draw (e.g., square, ellipse, SVG).
type | shape type |
Definition at line 105 of file qgstextbackgroundsettings.cpp.
QSizeF QgsTextBackgroundSettings::size | ( | ) | const |
Returns the size of the background shape.
The meaning of the size depends on the current sizeType(), e.g., for size types of QgsTextBackgroundSettings::SizeFixed the size will represent the actual width and height of the shape, for QgsTextBackgroundSettings::SizeBuffer the size will represent the horizontal and vertical margins to add to the text when calculating the size of the shape.
Definition at line 140 of file qgstextbackgroundsettings.cpp.
QgsMapUnitScale QgsTextBackgroundSettings::sizeMapUnitScale | ( | ) | const |
Returns the map unit scale object for the shape size.
This is only used if the sizeUnit() is set to QgsUnitTypes::RenderMapUnit.
Definition at line 160 of file qgstextbackgroundsettings.cpp.
QgsTextBackgroundSettings::SizeType QgsTextBackgroundSettings::sizeType | ( | ) | const |
Returns the method used to determine the size of the background shape (e.g., fixed size or buffer around text).
Definition at line 130 of file qgstextbackgroundsettings.cpp.
QgsUnitTypes::RenderUnit QgsTextBackgroundSettings::sizeUnit | ( | ) | const |
Returns the units used for the shape's size.
This value has no meaning if the sizeType() is set to QgsTextBackgroundSettings::SizePercent.
Definition at line 150 of file qgstextbackgroundsettings.cpp.
QColor QgsTextBackgroundSettings::strokeColor | ( | ) | const |
Returns the color used for outlining the background shape.
Definition at line 280 of file qgstextbackgroundsettings.cpp.
double QgsTextBackgroundSettings::strokeWidth | ( | ) | const |
Returns the width of the shape's stroke (stroke).
Units are retrieved through strokeWidthUnit().
Definition at line 290 of file qgstextbackgroundsettings.cpp.
QgsMapUnitScale QgsTextBackgroundSettings::strokeWidthMapUnitScale | ( | ) | const |
Returns the map unit scale object for the shape stroke width.
This is only used if the strokeWidthUnit() is set to QgsUnitTypes::RenderMapUnit.
Definition at line 310 of file qgstextbackgroundsettings.cpp.
QgsUnitTypes::RenderUnit QgsTextBackgroundSettings::strokeWidthUnit | ( | ) | const |
Returns the units used for the shape's stroke width.
Definition at line 300 of file qgstextbackgroundsettings.cpp.
QString QgsTextBackgroundSettings::svgFile | ( | ) | const |
Returns the absolute path to the background SVG file, if set.
Definition at line 110 of file qgstextbackgroundsettings.cpp.
QgsTextBackgroundSettings::ShapeType QgsTextBackgroundSettings::type | ( | ) | const |
Returns the type of background shape (e.g., square, ellipse, SVG).
Definition at line 100 of file qgstextbackgroundsettings.cpp.
void QgsTextBackgroundSettings::updateDataDefinedProperties | ( | QgsRenderContext & | context, |
const QgsPropertyCollection & | properties | ||
) |
Updates the format by evaluating current values of data defined properties.
Definition at line 637 of file qgstextbackgroundsettings.cpp.
QDomElement QgsTextBackgroundSettings::writeXml | ( | QDomDocument & | doc, |
const QgsReadWriteContext & | context | ||
) | const |
Write settings into a DOM element.
Definition at line 599 of file qgstextbackgroundsettings.cpp.