mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-25 00:58:06 -05:00
504 lines
15 KiB
Plaintext
504 lines
15 KiB
Plaintext
/************************************************************************
|
|
* This file has been generated automatically from *
|
|
* *
|
|
* src/core/qgsproperty.h *
|
|
* *
|
|
* Do not edit manually ! Edit header and run scripts/sipify.pl again *
|
|
************************************************************************/
|
|
|
|
|
|
|
|
|
|
class QgsPropertyDefinition
|
|
{
|
|
%Docstring
|
|
Definition for a property.
|
|
|
|
QgsPropertyDefinition defines the type of values allowed for a property, and
|
|
handles descriptive names and help text for using the property. Definitions
|
|
can use one of the predefined standard templates to simplify definition of
|
|
commonly used property types, such as colors and blend modes.
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
%TypeHeaderCode
|
|
#include "qgsproperty.h"
|
|
%End
|
|
public:
|
|
|
|
enum StandardPropertyTemplate
|
|
{
|
|
Boolean,
|
|
Integer,
|
|
IntegerPositive,
|
|
IntegerPositiveGreaterZero,
|
|
Double,
|
|
DoublePositive,
|
|
Double0To1,
|
|
Rotation,
|
|
String,
|
|
Opacity,
|
|
RenderUnits,
|
|
ColorWithAlpha,
|
|
ColorNoAlpha,
|
|
PenJoinStyle,
|
|
BlendMode,
|
|
Point,
|
|
Size,
|
|
Size2D,
|
|
LineStyle,
|
|
StrokeWidth,
|
|
FillStyle,
|
|
CapStyle,
|
|
HorizontalAnchor,
|
|
VerticalAnchor,
|
|
SvgPath,
|
|
Offset,
|
|
Custom,
|
|
};
|
|
|
|
enum DataType
|
|
{
|
|
|
|
DataTypeString,
|
|
|
|
DataTypeNumeric,
|
|
|
|
DataTypeBoolean,
|
|
};
|
|
|
|
QgsPropertyDefinition();
|
|
%Docstring
|
|
Constructs an empty property.
|
|
%End
|
|
|
|
QgsPropertyDefinition( const QString &name, const QString &description, StandardPropertyTemplate type, const QString &origin = QString(), const QString &comment = QString() );
|
|
%Docstring
|
|
Constructor for QgsPropertyDefinition, using a standard property template.
|
|
|
|
:param name: is used internally and should be a unique, alphanumeric string.
|
|
:param description: can be any localised string describing what the property is used for.
|
|
:param type: one of the predefined standard property template
|
|
:param origin: The origin of the property
|
|
:param comment: A free comment for the property
|
|
%End
|
|
|
|
QgsPropertyDefinition( const QString &name, DataType dataType, const QString &description, const QString &helpText, const QString &origin = QString(), const QString &comment = QString() );
|
|
%Docstring
|
|
Constructor for custom QgsPropertyDefinitions.
|
|
|
|
:param name: is used internally and should be a unique, alphanumeric string.
|
|
:param dataType: the data type for the property
|
|
:param description: can be any localised string describing what the property is used for.
|
|
:param helpText: parameter should specify a descriptive string for users outlining the types
|
|
of value acceptable by the property (eg 'dashed' or 'solid' for a line style property).
|
|
:param origin: The origin of the property
|
|
:param comment: A free comment for the property
|
|
%End
|
|
|
|
QString name() const;
|
|
%Docstring
|
|
Returns the name of the property. This is used internally and should be a unique, alphanumeric string.
|
|
%End
|
|
|
|
void setName( const QString &name );
|
|
%Docstring
|
|
Sets the name of the property
|
|
%End
|
|
|
|
QString origin() const;
|
|
%Docstring
|
|
Returns the origin of the property. For example, a PAL property has an
|
|
origin set to "labeling" while a diagram property has an origin set to
|
|
"diagram".
|
|
%End
|
|
|
|
void setOrigin( const QString &origin );
|
|
%Docstring
|
|
Sets the origin of the property. For example, a PAL property has an
|
|
origin set to "labeling" while a diagram property has an origin set to
|
|
"diagram".
|
|
%End
|
|
|
|
QString description() const;
|
|
%Docstring
|
|
Descriptive name of the property.
|
|
%End
|
|
|
|
QString comment() const;
|
|
%Docstring
|
|
Returns the comment of the property
|
|
%End
|
|
|
|
void setComment( const QString &comment );
|
|
%Docstring
|
|
Sets comment of the property
|
|
%End
|
|
|
|
QString helpText() const;
|
|
%Docstring
|
|
Helper text for using the property, including a description of the valid values for the property.
|
|
%End
|
|
|
|
void setDataType( DataType type );
|
|
%Docstring
|
|
Sets the data type
|
|
%End
|
|
|
|
DataType dataType() const;
|
|
%Docstring
|
|
Returns the allowable field/value data type for the property.
|
|
%End
|
|
|
|
StandardPropertyTemplate standardTemplate() const;
|
|
%Docstring
|
|
Returns the property's standard template, if applicable. Non standard
|
|
types will return the Custom template.
|
|
%End
|
|
|
|
bool supportsAssistant() const;
|
|
%Docstring
|
|
Returns true if the property is of a type which is compatible with property
|
|
override assistants.
|
|
%End
|
|
|
|
};
|
|
|
|
|
|
|
|
class QgsProperty
|
|
{
|
|
%Docstring
|
|
A store for object properties.
|
|
|
|
QgsProperty objects are used for storing properties for objects, which can then be transformed to
|
|
a QVariant value by evaluating them against a supplied :py:class:`QgsExpressionContext`. Multiple QgsProperty objects
|
|
can be grouped using a QgsPropertyCollection for easier bulk storage, retrieval and evaluation.
|
|
|
|
QgsProperty objects are implicitly shared and can be inexpensively copied.
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
%TypeHeaderCode
|
|
#include "qgsproperty.h"
|
|
%End
|
|
public:
|
|
|
|
enum Type
|
|
{
|
|
InvalidProperty,
|
|
StaticProperty,
|
|
FieldBasedProperty,
|
|
ExpressionBasedProperty,
|
|
};
|
|
|
|
QgsProperty();
|
|
%Docstring
|
|
Constructor for a :py:class:`QgsAbstractProperty`. The property will be set to an InvalidProperty type.
|
|
%End
|
|
|
|
virtual ~QgsProperty();
|
|
|
|
static QgsProperty fromExpression( const QString &expression, bool isActive = true );
|
|
%Docstring
|
|
Returns a new ExpressionBasedProperty created from the specified expression.
|
|
%End
|
|
|
|
static QgsProperty fromField( const QString &fieldName, bool isActive = true );
|
|
%Docstring
|
|
Returns a new FieldBasedProperty created from the specified field name.
|
|
%End
|
|
|
|
static QgsProperty fromValue( const QVariant &value, bool isActive = true );
|
|
%Docstring
|
|
Returns a new StaticProperty created from the specified value.
|
|
%End
|
|
|
|
QgsProperty( const QgsProperty &other );
|
|
%Docstring
|
|
Copy constructor
|
|
%End
|
|
|
|
|
|
operator bool() const;
|
|
|
|
bool operator==( const QgsProperty &other ) const;
|
|
bool operator!=( const QgsProperty &other ) const;
|
|
|
|
Type propertyType() const;
|
|
%Docstring
|
|
Returns the property type.
|
|
%End
|
|
|
|
bool isActive() const;
|
|
%Docstring
|
|
Returns whether the property is currently active.
|
|
|
|
.. seealso:: :py:func:`setActive`
|
|
%End
|
|
|
|
void setActive( bool active );
|
|
%Docstring
|
|
Sets whether the property is currently active.
|
|
|
|
.. seealso:: :py:func:`isActive`
|
|
%End
|
|
|
|
void setStaticValue( const QVariant &value );
|
|
%Docstring
|
|
Sets the static value for the property. Calling this will
|
|
transform the property into an StaticProperty.
|
|
|
|
.. seealso:: :py:func:`staticValue`
|
|
%End
|
|
|
|
QVariant staticValue() const;
|
|
%Docstring
|
|
Returns the current static value for the property. If the property
|
|
is not a StaticProperty this will return an invalid variant.
|
|
|
|
.. seealso:: :py:func:`setStaticValue`
|
|
%End
|
|
|
|
void setField( const QString &field );
|
|
%Docstring
|
|
Sets the field name the property references. Calling this will
|
|
transform the property into an FieldBasedProperty.
|
|
|
|
.. seealso:: :py:func:`field`
|
|
%End
|
|
|
|
QString field() const;
|
|
%Docstring
|
|
Returns the current field name the property references. If the property
|
|
is not a FieldBasedProperty this will return an empty string.
|
|
|
|
.. seealso:: :py:func:`setField`
|
|
%End
|
|
|
|
void setExpressionString( const QString &expression );
|
|
%Docstring
|
|
Sets the expression to use for the property value. Calling this will
|
|
transform the property into an ExpressionBasedProperty.
|
|
|
|
.. seealso:: :py:func:`expressionString`
|
|
%End
|
|
|
|
QString expressionString() const;
|
|
%Docstring
|
|
Returns the expression used for the property value. If the property
|
|
is not a ExpressionBasedProperty this will return an empty string.
|
|
|
|
.. seealso:: :py:func:`setExpressionString`
|
|
%End
|
|
|
|
QString asExpression() const;
|
|
%Docstring
|
|
Returns an expression string representing the state of the property, or an empty
|
|
string if the property could not be converted to an expression
|
|
%End
|
|
|
|
bool prepare( const QgsExpressionContext &context = QgsExpressionContext() ) const;
|
|
%Docstring
|
|
Prepares the property against a specified expression context. Calling prepare before evaluating the
|
|
property multiple times allows precalculation of expensive setup tasks such as parsing expressions.
|
|
Returns true if preparation was successful.
|
|
%End
|
|
|
|
QSet< QString > referencedFields( const QgsExpressionContext &context = QgsExpressionContext() ) const;
|
|
%Docstring
|
|
Returns the set of any fields referenced by the property for a specified
|
|
expression context.
|
|
%End
|
|
|
|
bool isProjectColor() const;
|
|
%Docstring
|
|
Returns true if the property is set to a linked project color.
|
|
|
|
.. versionadded:: 3.6
|
|
%End
|
|
|
|
QVariant value( const QgsExpressionContext &context, const QVariant &defaultValue = QVariant(), bool *ok /Out/ = 0 ) const;
|
|
%Docstring
|
|
Calculates the current value of the property, including any transforms which are set for the property
|
|
|
|
:param context: QgsExpressionContext to evaluate the property for. The variables and functions contained
|
|
in the expression context can be used to alter the calculated value for the property, so that a property
|
|
is able to respond to the current environment, layers and features within QGIS.
|
|
:param defaultValue: default value to return if the property is not active or cannot be calculated
|
|
|
|
:return: - calculated value for property
|
|
- ok: will be set to true if conversion was successful
|
|
|
|
.. seealso:: :py:func:`valueAsString`
|
|
|
|
.. seealso:: :py:func:`valueAsColor`
|
|
|
|
.. seealso:: :py:func:`valueAsDouble`
|
|
|
|
.. seealso:: :py:func:`valueAsInt`
|
|
|
|
.. seealso:: :py:func:`valueAsBool`
|
|
%End
|
|
|
|
QString valueAsString( const QgsExpressionContext &context, const QString &defaultString = QString(), bool *ok /Out/ = 0 ) const;
|
|
%Docstring
|
|
Calculates the current value of the property and interprets it as a string.
|
|
|
|
:param context: QgsExpressionContext to evaluate the property for.
|
|
:param defaultString: default string to return if the property cannot be calculated as a string
|
|
|
|
:return: - value parsed to string
|
|
- ok: will be set to true if conversion was successful
|
|
|
|
.. seealso:: :py:func:`value`
|
|
|
|
.. seealso:: :py:func:`valueAsColor`
|
|
|
|
.. seealso:: :py:func:`valueAsDouble`
|
|
|
|
.. seealso:: :py:func:`valueAsInt`
|
|
|
|
.. seealso:: :py:func:`valueAsBool`
|
|
%End
|
|
|
|
QColor valueAsColor( const QgsExpressionContext &context, const QColor &defaultColor = QColor(), bool *ok /Out/ = 0 ) const;
|
|
%Docstring
|
|
Calculates the current value of the property and interprets it as a color.
|
|
|
|
:param context: QgsExpressionContext to evaluate the property for.
|
|
:param defaultColor: default color to return if the property cannot be calculated as a color
|
|
|
|
:return: - value parsed to color
|
|
- ok: will be set to true if conversion was successful
|
|
|
|
.. seealso:: :py:func:`value`
|
|
|
|
.. seealso:: :py:func:`valueAsString`
|
|
|
|
.. seealso:: :py:func:`valueAsDouble`
|
|
|
|
.. seealso:: :py:func:`valueAsInt`
|
|
|
|
.. seealso:: :py:func:`valueAsBool`
|
|
%End
|
|
|
|
double valueAsDouble( const QgsExpressionContext &context, double defaultValue = 0.0, bool *ok /Out/ = 0 ) const;
|
|
%Docstring
|
|
Calculates the current value of the property and interprets it as a double.
|
|
|
|
:param context: QgsExpressionContext to evaluate the property for.
|
|
:param defaultValue: default double to return if the property cannot be calculated as a double
|
|
|
|
:return: - value parsed to double
|
|
- ok: will be set to true if conversion was successful
|
|
|
|
.. seealso:: :py:func:`value`
|
|
|
|
.. seealso:: :py:func:`valueAsString`
|
|
|
|
.. seealso:: :py:func:`valueAsColor`
|
|
|
|
.. seealso:: :py:func:`valueAsInt`
|
|
|
|
.. seealso:: :py:func:`valueAsBool`
|
|
%End
|
|
|
|
int valueAsInt( const QgsExpressionContext &context, int defaultValue = 0, bool *ok /Out/ = 0 ) const;
|
|
%Docstring
|
|
Calculates the current value of the property and interprets it as an integer.
|
|
|
|
:param context: QgsExpressionContext to evaluate the property for.
|
|
:param defaultValue: default integer to return if the property cannot be calculated as an integer
|
|
|
|
:return: - value parsed to integer
|
|
- ok: will be set to true if conversion was successful
|
|
|
|
.. seealso:: :py:func:`value`
|
|
|
|
.. seealso:: :py:func:`valueAsString`
|
|
|
|
.. seealso:: :py:func:`valueAsColor`
|
|
|
|
.. seealso:: :py:func:`valueAsDouble`
|
|
|
|
.. seealso:: :py:func:`valueAsBool`
|
|
%End
|
|
|
|
bool valueAsBool( const QgsExpressionContext &context, bool defaultValue = false, bool *ok /Out/ = 0 ) const;
|
|
%Docstring
|
|
Calculates the current value of the property and interprets it as an boolean.
|
|
|
|
:param context: QgsExpressionContext to evaluate the property for.
|
|
:param defaultValue: default boolean to return if the property cannot be calculated as an boolean
|
|
|
|
:return: - value parsed to boolean
|
|
- ok: will be set to true if conversion was successful
|
|
|
|
.. seealso:: :py:func:`value`
|
|
|
|
.. seealso:: :py:func:`valueAsString`
|
|
|
|
.. seealso:: :py:func:`valueAsColor`
|
|
|
|
.. seealso:: :py:func:`valueAsDouble`
|
|
|
|
.. seealso:: :py:func:`valueAsInt`
|
|
%End
|
|
|
|
QVariant toVariant() const;
|
|
%Docstring
|
|
Saves this property to a QVariantMap, wrapped in a QVariant.
|
|
You can use QgsXmlUtils.writeVariant to save it to an XML document.
|
|
|
|
.. seealso:: :py:func:`loadVariant`
|
|
%End
|
|
|
|
bool loadVariant( const QVariant &property );
|
|
%Docstring
|
|
Loads this property from a QVariantMap, wrapped in a QVariant.
|
|
You can use QgsXmlUtils.readVariant to load it from an XML document.
|
|
|
|
.. seealso:: :py:func:`toVariant`
|
|
%End
|
|
|
|
void setTransformer( QgsPropertyTransformer *transformer /Transfer/ );
|
|
%Docstring
|
|
Sets an optional transformer to use for manipulating the calculated values for the property.
|
|
|
|
:param transformer: transformer to install. Ownership is transferred to the property, and any
|
|
existing transformer will be deleted. Set to null to remove an existing transformer.
|
|
|
|
.. seealso:: :py:func:`transformer`
|
|
%End
|
|
|
|
const QgsPropertyTransformer *transformer() const;
|
|
%Docstring
|
|
Returns the existing transformer used for manipulating the calculated values for the property, if set.
|
|
|
|
.. seealso:: :py:func:`setTransformer`
|
|
%End
|
|
|
|
bool convertToTransformer();
|
|
%Docstring
|
|
Attempts to convert an existing expression based property to a base expression with
|
|
corresponding transformer. Returns true if conversion was successful. Note that
|
|
calling this method requires multiple parsing of expressions, so it should only
|
|
be called in non-performance critical code.
|
|
%End
|
|
|
|
operator QVariant() const;
|
|
|
|
};
|
|
|
|
|
|
/************************************************************************
|
|
* This file has been generated automatically from *
|
|
* *
|
|
* src/core/qgsproperty.h *
|
|
* *
|
|
* Do not edit manually ! Edit header and run scripts/sipify.pl again *
|
|
************************************************************************/
|