29 d =
new QgsTextBufferSettingsPrivate();
50 if ( d->enabled != other.
enabled()
51 || d->size != other.
size()
54 || d->color != other.
color()
55 || d->opacity != other.
opacity()
61 if (
static_cast< bool >( d->paintEffect ) !=
static_cast< bool >( other.
paintEffect() )
70 return !( *
this == other );
105 return d->sizeMapUnitScale;
110 d->sizeMapUnitScale = scale;
125 return d->fillBufferInterior;
130 d->fillBufferInterior = fill;
150 d->joinStyle = style;
165 return d->paintEffect.get();
170 d->paintEffect.reset( effect );
190 const QString units = exprVal.toString();
191 if ( !units.isEmpty() )
206 d->opacity = val.toDouble() / 100.0;
219 const QString blendstr = exprVal.toString().trimmed();
220 if ( !blendstr.isEmpty() )
227 const QString joinstr = exprVal.toString().trimmed();
228 if ( !joinstr.isEmpty() )
237 return QSet< QString >();
243 const double bufSize = layer->
customProperty( QStringLiteral(
"labeling/bufferSize" ), QVariant( 0.0 ) ).toDouble();
246 const QVariant drawBuffer = layer->
customProperty( QStringLiteral(
"labeling/bufferDraw" ), QVariant() );
247 if ( drawBuffer.isValid() )
249 d->enabled = drawBuffer.toBool();
252 else if ( bufSize != 0.0 )
263 if ( layer->
customProperty( QStringLiteral(
"labeling/bufferSizeUnits" ) ).toString().isEmpty() )
265 const bool bufferSizeInMapUnits = layer->
customProperty( QStringLiteral(
"labeling/bufferSizeInMapUnits" ) ).toBool();
273 if ( layer->
customProperty( QStringLiteral(
"labeling/bufferSizeMapUnitScale" ) ).toString().isEmpty() )
276 const double oldMin = layer->
customProperty( QStringLiteral(
"labeling/bufferSizeMapUnitMinScale" ), 0.0 ).toDouble();
277 d->sizeMapUnitScale.minScale = oldMin != 0 ? 1.0 / oldMin : 0;
278 const double oldMax = layer->
customProperty( QStringLiteral(
"labeling/bufferSizeMapUnitMaxScale" ), 0.0 ).toDouble();
279 d->sizeMapUnitScale.maxScale = oldMax != 0 ? 1.0 / oldMax : 0;
286 if ( layer->
customProperty( QStringLiteral(
"labeling/bufferOpacity" ) ).toString().isEmpty() )
288 d->opacity = ( 1 - layer->
customProperty( QStringLiteral(
"labeling/bufferTransp" ) ).toInt() / 100.0 );
292 d->opacity = ( layer->
customProperty( QStringLiteral(
"labeling/bufferOpacity" ) ).toDouble() );
296 d->joinStyle =
static_cast< Qt::PenJoinStyle
>( layer->
customProperty( QStringLiteral(
"labeling/bufferJoinStyle" ), QVariant( Qt::RoundJoin ) ).toUInt() );
298 d->fillBufferInterior = !layer->
customProperty( QStringLiteral(
"labeling/bufferNoFill" ), QVariant(
false ) ).toBool();
300 if ( layer->
customProperty( QStringLiteral(
"labeling/bufferEffect" ) ).isValid() )
302 QDomDocument doc( QStringLiteral(
"effect" ) );
303 doc.setContent( layer->
customProperty( QStringLiteral(
"labeling/bufferEffect" ) ).toString() );
304 const QDomElement effectElem = doc.firstChildElement( QStringLiteral(
"effect" ) ).firstChildElement( QStringLiteral(
"effect" ) );
313 const QDomElement textBufferElem = elem.firstChildElement( QStringLiteral(
"text-buffer" ) );
314 const double bufSize = textBufferElem.attribute( QStringLiteral(
"bufferSize" ), QStringLiteral(
"0" ) ).toDouble();
317 const QVariant drawBuffer = textBufferElem.attribute( QStringLiteral(
"bufferDraw" ) );
318 if ( drawBuffer.isValid() )
320 d->enabled = drawBuffer.toBool();
323 else if ( bufSize != 0.0 )
334 if ( !textBufferElem.hasAttribute( QStringLiteral(
"bufferSizeUnits" ) ) )
336 const bool bufferSizeInMapUnits = textBufferElem.attribute( QStringLiteral(
"bufferSizeInMapUnits" ) ).toInt();
344 if ( !textBufferElem.hasAttribute( QStringLiteral(
"bufferSizeMapUnitScale" ) ) )
347 const double oldMin = textBufferElem.attribute( QStringLiteral(
"bufferSizeMapUnitMinScale" ), QStringLiteral(
"0" ) ).toDouble();
348 d->sizeMapUnitScale.minScale = oldMin != 0 ? 1.0 / oldMin : 0;
349 const double oldMax = textBufferElem.attribute( QStringLiteral(
"bufferSizeMapUnitMaxScale" ), QStringLiteral(
"0" ) ).toDouble();
350 d->sizeMapUnitScale.maxScale = oldMax != 0 ? 1.0 / oldMax : 0;
358 if ( !textBufferElem.hasAttribute( QStringLiteral(
"bufferOpacity" ) ) )
360 d->opacity = ( 1 - textBufferElem.attribute( QStringLiteral(
"bufferTransp" ) ).toInt() / 100.0 );
364 d->opacity = ( textBufferElem.attribute( QStringLiteral(
"bufferOpacity" ) ).toDouble() );
369 d->joinStyle =
static_cast< Qt::PenJoinStyle
>( textBufferElem.attribute( QStringLiteral(
"bufferJoinStyle" ), QString::number( Qt::RoundJoin ) ).toUInt() );
370 d->fillBufferInterior = !textBufferElem.attribute( QStringLiteral(
"bufferNoFill" ), QStringLiteral(
"0" ) ).toInt();
371 const QDomElement effectElem = textBufferElem.firstChildElement( QStringLiteral(
"effect" ) );
372 if ( !effectElem.isNull() )
381 QDomElement textBufferElem = doc.createElement( QStringLiteral(
"text-buffer" ) );
382 textBufferElem.setAttribute( QStringLiteral(
"bufferDraw" ), d->enabled );
383 textBufferElem.setAttribute( QStringLiteral(
"bufferSize" ), d->size );
387 textBufferElem.setAttribute( QStringLiteral(
"bufferNoFill" ), !d->fillBufferInterior );
388 textBufferElem.setAttribute( QStringLiteral(
"bufferOpacity" ), d->opacity );
389 textBufferElem.setAttribute( QStringLiteral(
"bufferJoinStyle" ),
static_cast< unsigned int >( d->joinStyle ) );
392 d->paintEffect->saveProperties( doc, textBufferElem );
393 return textBufferElem;
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.
bool valueAsBool(int key, const QgsExpressionContext &context, bool defaultValue=false, bool *ok=nullptr) const
Calculates the current value of the property with the specified key and interprets it as an boolean.
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.
static QgsPaintEffectRegistry * paintEffectRegistry()
Returns the application's paint effect registry, used for managing paint effects.
void setOriginalValueVariable(const QVariant &value)
Sets the original value variable value for the context.
Q_INVOKABLE QVariant customProperty(const QString &value, const QVariant &defaultValue=QVariant()) const
Read a custom property from layer.
Struct for storing maximum and minimum scales for measurements in map units.
static bool isDefaultStack(QgsPaintEffect *effect)
Tests whether a paint effect matches the default effects stack.
QgsPaintEffect * createEffect(const QString &name, const QVariantMap &properties=QVariantMap()) const
Creates a new paint effect given the effect name and properties map.
Base class for visual effects which can be applied to QPicture drawings.
virtual QVariantMap properties() const =0
Returns the properties describing the paint effect encoded in a string format.
static QgsPainting::BlendMode getBlendModeEnum(QPainter::CompositionMode blendMode)
Returns a BlendMode corresponding to a QPainter::CompositionMode.
static QPainter::CompositionMode getCompositionMode(QgsPainting::BlendMode blendMode)
Returns a QPainter::CompositionMode corresponding to a BlendMode.
BlendMode
Blending modes enum defining the available composition modes that can be used when rendering a layer.
@ BufferOpacity
Buffer opacity.
A grouped map of multiple QgsProperty objects, each referenced by a integer key value.
QVariant value(int key, const QgsExpressionContext &context, const QVariant &defaultValue=QVariant()) const override
Returns the calculated value of the property with the specified key from within the collection.
bool isActive(int key) const override
Returns true if the collection contains an active property with the specified key.
Contains information about the context of a rendering operation.
QgsExpressionContext & expressionContext()
Gets the expression context.
static Qt::PenJoinStyle decodePenJoinStyle(const QString &str)
static QString encodeMapUnitScale(const QgsMapUnitScale &mapUnitScale)
static QColor decodeColor(const QString &str)
static QgsMapUnitScale decodeMapUnitScale(const QString &str)
static QPainter::CompositionMode decodeBlendMode(const QString &s)
static QString encodeColor(const QColor &color)
Container for settings relating to a text buffer.
QgsTextBufferSettings & operator=(const QgsTextBufferSettings &other)
Copy constructor.
void setFillBufferInterior(bool fill)
Sets whether the interior of the buffer will be filled in.
void setBlendMode(QPainter::CompositionMode mode)
Sets the blending mode used for drawing the buffer.
void readFromLayer(QgsVectorLayer *layer)
Reads settings from a layer's custom properties (for QGIS 2.x projects).
QSet< QString > referencedFields(const QgsRenderContext &context) const
Returns all field names referenced by the configuration (e.g.
Qt::PenJoinStyle joinStyle() const
Returns the buffer join style.
double size() const
Returns the size of the buffer.
void setColor(const QColor &color)
Sets the color for the buffer.
void setSizeMapUnitScale(const QgsMapUnitScale &scale)
Sets the map unit scale object for the buffer size.
void setOpacity(double opacity)
Sets the buffer opacity.
QgsMapUnitScale sizeMapUnitScale() const
Returns the map unit scale object for the buffer size.
bool enabled() const
Returns whether the buffer is enabled.
double opacity() const
Returns the buffer opacity.
bool operator!=(const QgsTextBufferSettings &other) const
QDomElement writeXml(QDomDocument &doc) const
Write settings into a DOM element.
bool fillBufferInterior() const
Returns whether the interior of the buffer will be filled in.
void setEnabled(bool enabled)
Sets whether the text buffer will be drawn.
QgsUnitTypes::RenderUnit sizeUnit() const
Returns the units for the buffer size.
void setPaintEffect(QgsPaintEffect *effect)
Sets the current paint effect for the buffer.
const QgsPaintEffect * paintEffect() const
Returns the current paint effect for the buffer.
QColor color() const
Returns the color of the buffer.
bool operator==(const QgsTextBufferSettings &other) const
QPainter::CompositionMode blendMode() const
Returns the blending mode used for drawing the buffer.
void setSizeUnit(QgsUnitTypes::RenderUnit unit)
Sets the units used for the buffer size.
void updateDataDefinedProperties(QgsRenderContext &context, const QgsPropertyCollection &properties)
Updates the format by evaluating current values of data defined properties.
void setJoinStyle(Qt::PenJoinStyle style)
Sets the join style used for drawing the buffer.
void setSize(double size)
Sets the size of the buffer.
void readXml(const QDomElement &elem)
Read settings from a DOM element.
static QColor readColor(QgsVectorLayer *layer, const QString &property, const QColor &defaultColor=Qt::black, bool withAlpha=true)
Converts an encoded color value from a layer property.
static Q_INVOKABLE QString encodeUnit(QgsUnitTypes::DistanceUnit unit)
Encodes a distance unit to a string.
static Q_INVOKABLE QgsUnitTypes::RenderUnit decodeRenderUnit(const QString &string, bool *ok=nullptr)
Decodes a render unit from a string.
RenderUnit
Rendering size units.
@ RenderMillimeters
Millimeters.
@ RenderMapUnits
Map units.
static bool isNull(const QVariant &variant)
Returns true if the specified variant should be considered a NULL value.
Represents a vector layer which manages a vector based data sets.