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qgsfillsymbollayer.h
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qgsfillsymbollayer.h
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/***************************************************************************
qgsfillsymbollayer.h
---------------------
begin : November 2009
copyright : (C) 2009 by Martin Dobias
email : wonder dot sk at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSFILLSYMBOLLAYER_H
#define QGSFILLSYMBOLLAYER_H
#include "qgis_core.h"
#include "qgis.h"
#include "qgssymbollayer.h"
#define DEFAULT_SIMPLEFILL_COLOR QColor(0,0,255)
#define DEFAULT_SIMPLEFILL_STYLE Qt::SolidPattern
#define DEFAULT_SIMPLEFILL_BORDERCOLOR QColor( 35, 35, 35 )
#define DEFAULT_SIMPLEFILL_BORDERSTYLE Qt::SolidLine
#define DEFAULT_SIMPLEFILL_BORDERWIDTH DEFAULT_LINE_WIDTH
#define DEFAULT_SIMPLEFILL_JOINSTYLE Qt::BevelJoin
#define INF 1E20
#include <QPen>
#include <QBrush>
/**
* \ingroup core
* \class QgsSimpleFillSymbolLayer
*/
class CORE_EXPORT QgsSimpleFillSymbolLayer : public QgsFillSymbolLayer
{
public:
QgsSimpleFillSymbolLayer( const QColor &color = DEFAULT_SIMPLEFILL_COLOR,
Qt::BrushStyle style = DEFAULT_SIMPLEFILL_STYLE,
const QColor &strokeColor = DEFAULT_SIMPLEFILL_BORDERCOLOR,
Qt::PenStyle strokeStyle = DEFAULT_SIMPLEFILL_BORDERSTYLE,
double strokeWidth = DEFAULT_SIMPLEFILL_BORDERWIDTH,
Qt::PenJoinStyle penJoinStyle = DEFAULT_SIMPLEFILL_JOINSTYLE
);
// static stuff
/**
* Creates a new QgsSimpleFillSymbolLayer using the specified \a properties map containing symbol properties (see properties()).
*
* Caller takes ownership of the returned symbol layer.
*/
static QgsSymbolLayer *create( const QgsStringMap &properties = QgsStringMap() ) SIP_FACTORY;
static QgsSymbolLayer *createFromSld( QDomElement &element ) SIP_FACTORY;
// implemented from base classes
QString layerType() const override;
void startRender( QgsSymbolRenderContext &context ) override;
void stopRender( QgsSymbolRenderContext &context ) override;
void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
QgsStringMap properties() const override;
QgsSimpleFillSymbolLayer *clone() const override SIP_FACTORY;
void toSld( QDomDocument &doc, QDomElement &element, const QgsStringMap &props ) const override;
QString ogrFeatureStyle( double mmScaleFactor, double mapUnitScaleFactor ) const override;
Qt::BrushStyle brushStyle() const { return mBrushStyle; }
void setBrushStyle( Qt::BrushStyle style ) { mBrushStyle = style; }
QColor strokeColor() const override { return mStrokeColor; }
void setStrokeColor( const QColor &strokeColor ) override { mStrokeColor = strokeColor; }
QColor fillColor() const override { return color(); }
void setFillColor( const QColor &color ) override { setColor( color ); }
Qt::PenStyle strokeStyle() const { return mStrokeStyle; }
void setStrokeStyle( Qt::PenStyle strokeStyle ) { mStrokeStyle = strokeStyle; }
double strokeWidth() const { return mStrokeWidth; }
void setStrokeWidth( double strokeWidth ) { mStrokeWidth = strokeWidth; }
Qt::PenJoinStyle penJoinStyle() const { return mPenJoinStyle; }
void setPenJoinStyle( Qt::PenJoinStyle style ) { mPenJoinStyle = style; }
/**
* Sets an \a offset by which polygons will be translated during rendering.
*
* Units are specified by offsetUnit().
*
* \see offset()
* \see setOffsetUnit()
*/
void setOffset( QPointF offset ) { mOffset = offset; }
/**
* Returns the offset by which polygons will be translated during rendering.
*
* Units are specified by offsetUnit().
*
* \see setOffset()
* \see offsetUnit()
*/
QPointF offset() { return mOffset; }
/**
* Sets the units for the width of the fill's stroke.
* \param unit width units
* \see strokeWidthUnit()
*/
void setStrokeWidthUnit( QgsUnitTypes::RenderUnit unit ) { mStrokeWidthUnit = unit; }
/**
* Returns the units for the width of the fill's stroke.
* \see setStrokeWidthUnit()
*/
QgsUnitTypes::RenderUnit strokeWidthUnit() const { return mStrokeWidthUnit; }
void setStrokeWidthMapUnitScale( const QgsMapUnitScale &scale ) { mStrokeWidthMapUnitScale = scale; }
const QgsMapUnitScale &strokeWidthMapUnitScale() const { return mStrokeWidthMapUnitScale; }
/**
* Sets the \a unit for the fill's offset.
* \see offset()
* \see offsetUnit()
*/
void setOffsetUnit( QgsUnitTypes::RenderUnit unit ) { mOffsetUnit = unit; }
/**
* Returns the units for the fill's offset.
* \see setOffsetUnit()
* \see offset()
*/
QgsUnitTypes::RenderUnit offsetUnit() const { return mOffsetUnit; }
/**
* Sets the map unit \a scale for the fill's offset.
* \see setOffset()
* \see offsetMapUnitScale()
*/
void setOffsetMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetMapUnitScale = scale; }
/**
* Returns the map unit scale for the fill's offset.
* \see offset()
* \see setOffsetMapUnitScale()
*/
const QgsMapUnitScale &offsetMapUnitScale() const { return mOffsetMapUnitScale; }
void setOutputUnit( QgsUnitTypes::RenderUnit unit ) override;
QgsUnitTypes::RenderUnit outputUnit() const override;
void setMapUnitScale( const QgsMapUnitScale &scale ) override;
QgsMapUnitScale mapUnitScale() const override;
double estimateMaxBleed( const QgsRenderContext &context ) const override;
double dxfWidth( const QgsDxfExport &e, QgsSymbolRenderContext &context ) const override;
QColor dxfColor( QgsSymbolRenderContext &context ) const override;
double dxfAngle( QgsSymbolRenderContext &context ) const override;
Qt::PenStyle dxfPenStyle() const override;
QColor dxfBrushColor( QgsSymbolRenderContext &context ) const override;
Qt::BrushStyle dxfBrushStyle() const override;
protected:
QBrush mBrush;
QBrush mSelBrush;
Qt::BrushStyle mBrushStyle;
QColor mStrokeColor;
Qt::PenStyle mStrokeStyle;
double mStrokeWidth;
QgsUnitTypes::RenderUnit mStrokeWidthUnit = QgsUnitTypes::RenderMillimeters;
QgsMapUnitScale mStrokeWidthMapUnitScale;
Qt::PenJoinStyle mPenJoinStyle;
QPen mPen;
QPen mSelPen;
QPointF mOffset;
QgsUnitTypes::RenderUnit mOffsetUnit = QgsUnitTypes::RenderMillimeters;
QgsMapUnitScale mOffsetMapUnitScale;
private:
//helper functions for data defined symbology
void applyDataDefinedSymbology( QgsSymbolRenderContext &context, QBrush &brush, QPen &pen, QPen &selPen );
};
class QgsColorRamp;
/**
* \ingroup core
* \class QgsGradientFillSymbolLayer
*/
class CORE_EXPORT QgsGradientFillSymbolLayer : public QgsFillSymbolLayer
{
public:
enum GradientColorType
{
SimpleTwoColor,
ColorRamp
};
enum GradientType
{
Linear,
Radial,
Conical
};
enum GradientCoordinateMode
{
Feature,
Viewport
};
enum GradientSpread
{
Pad,
Reflect,
Repeat
};
QgsGradientFillSymbolLayer( const QColor &color = DEFAULT_SIMPLEFILL_COLOR,
const QColor &color2 = Qt::white,
GradientColorType gradientColorType = SimpleTwoColor,
GradientType gradientType = Linear,
GradientCoordinateMode coordinateMode = Feature,
GradientSpread gradientSpread = Pad
);
~QgsGradientFillSymbolLayer() override;
// static stuff
/**
* Creates a new QgsGradientFillSymbolLayer using the specified \a properties map containing symbol properties (see properties()).
*
* Caller takes ownership of the returned symbol layer.
*/
static QgsSymbolLayer *create( const QgsStringMap &properties = QgsStringMap() ) SIP_FACTORY;
// implemented from base classes
QString layerType() const override;
void startRender( QgsSymbolRenderContext &context ) override;
void stopRender( QgsSymbolRenderContext &context ) override;
void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
QgsStringMap properties() const override;
QgsGradientFillSymbolLayer *clone() const override SIP_FACTORY;
double estimateMaxBleed( const QgsRenderContext &context ) const override;
//! Type of gradient, e.g., linear or radial
GradientType gradientType() const { return mGradientType; }
void setGradientType( GradientType gradientType ) { mGradientType = gradientType; }
//! Gradient color mode, controls how gradient color stops are created
GradientColorType gradientColorType() const { return mGradientColorType; }
void setGradientColorType( GradientColorType gradientColorType ) { mGradientColorType = gradientColorType; }
/**
* Returns the color ramp used for the gradient fill. This is only
* used if the gradient color type is set to ColorRamp.
* \see setColorRamp()
* \see gradientColorType()
*/
QgsColorRamp *colorRamp() { return mGradientRamp; }
/**
* Sets the color ramp used for the gradient fill. This is only
* used if the gradient color type is set to ColorRamp.
* \param ramp color ramp. Ownership is transferred.
* \see colorRamp()
* \see setGradientColorType()
*/
void setColorRamp( QgsColorRamp *ramp SIP_TRANSFER );
//! Color for endpoint of gradient, only used if the gradient color type is set to SimpleTwoColor
QColor color2() const { return mColor2; }
void setColor2( const QColor &color2 ) { mColor2 = color2; }
//! Coordinate mode for gradient. Controls how the gradient stops are positioned.
GradientCoordinateMode coordinateMode() const { return mCoordinateMode; }
void setCoordinateMode( GradientCoordinateMode coordinateMode ) { mCoordinateMode = coordinateMode; }
//! Gradient spread mode. Controls how the gradient behaves outside of the predefined stops
GradientSpread gradientSpread() const { return mGradientSpread; }
void setGradientSpread( GradientSpread gradientSpread ) { mGradientSpread = gradientSpread; }
//! Starting point of gradient fill, in the range [0,0] - [1,1]
void setReferencePoint1( QPointF referencePoint ) { mReferencePoint1 = referencePoint; }
QPointF referencePoint1() const { return mReferencePoint1; }
//! Sets the starting point of the gradient to be the feature centroid
void setReferencePoint1IsCentroid( bool isCentroid ) { mReferencePoint1IsCentroid = isCentroid; }
bool referencePoint1IsCentroid() const { return mReferencePoint1IsCentroid; }
//! End point of gradient fill, in the range [0,0] - [1,1]
void setReferencePoint2( QPointF referencePoint ) { mReferencePoint2 = referencePoint; }
QPointF referencePoint2() const { return mReferencePoint2; }
//! Sets the end point of the gradient to be the feature centroid
void setReferencePoint2IsCentroid( bool isCentroid ) { mReferencePoint2IsCentroid = isCentroid; }
bool referencePoint2IsCentroid() const { return mReferencePoint2IsCentroid; }
/**
* Sets an \a offset by which polygons will be translated during rendering.
*
* Units are specified by offsetUnit().
*
* \see offset()
* \see setOffsetUnit()
*/
void setOffset( QPointF offset ) { mOffset = offset; }
/**
* Returns the offset by which polygons will be translated during rendering.
*
* Units are specified by offsetUnit().
*
* \see setOffset()
* \see offsetUnit()
*/
QPointF offset() const { return mOffset; }
/**
* Sets the \a unit for the fill's offset.
* \see offset()
* \see offsetUnit()
*/
void setOffsetUnit( QgsUnitTypes::RenderUnit unit ) { mOffsetUnit = unit; }
/**
* Returns the units for the fill's offset.
* \see setOffsetUnit()
* \see offset()
*/
QgsUnitTypes::RenderUnit offsetUnit() const { return mOffsetUnit; }
/**
* Sets the map unit \a scale for the fill's offset.
* \see setOffset()
* \see offsetMapUnitScale()
*/
void setOffsetMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetMapUnitScale = scale; }
/**
* Returns the map unit scale for the fill's offset.
* \see offset()
* \see setOffsetMapUnitScale()
*/
const QgsMapUnitScale &offsetMapUnitScale() const { return mOffsetMapUnitScale; }
void setOutputUnit( QgsUnitTypes::RenderUnit unit ) override;
QgsUnitTypes::RenderUnit outputUnit() const override;
void setMapUnitScale( const QgsMapUnitScale &scale ) override;
QgsMapUnitScale mapUnitScale() const override;
protected:
QBrush mBrush;
QBrush mSelBrush;
GradientColorType mGradientColorType;
QColor mColor2;
QgsColorRamp *mGradientRamp = nullptr;
GradientType mGradientType;
GradientCoordinateMode mCoordinateMode;
GradientSpread mGradientSpread;
QPointF mReferencePoint1;
bool mReferencePoint1IsCentroid = false;
QPointF mReferencePoint2;
bool mReferencePoint2IsCentroid = false;
QPointF mOffset;
QgsUnitTypes::RenderUnit mOffsetUnit = QgsUnitTypes::RenderMillimeters;
QgsMapUnitScale mOffsetMapUnitScale;
private:
//helper functions for data defined symbology
void applyDataDefinedSymbology( QgsSymbolRenderContext &context, const QPolygonF &points );
//! Applies the gradient to a brush
void applyGradient( const QgsSymbolRenderContext &context, QBrush &brush, const QColor &color, const QColor &color2,
GradientColorType gradientColorType, QgsColorRamp *gradientRamp, GradientType gradientType,
GradientCoordinateMode coordinateMode, GradientSpread gradientSpread,
QPointF referencePoint1, QPointF referencePoint2, double angle );
//! Rotates a reference point by a specified angle around the point (0.5, 0.5)
QPointF rotateReferencePoint( QPointF refPoint, double angle );
};
/**
* \ingroup core
* \class QgsShapeburstFillSymbolLayer
*/
class CORE_EXPORT QgsShapeburstFillSymbolLayer : public QgsFillSymbolLayer
{
public:
enum ShapeburstColorType
{
SimpleTwoColor,
ColorRamp
};
QgsShapeburstFillSymbolLayer( const QColor &color = DEFAULT_SIMPLEFILL_COLOR, const QColor &color2 = Qt::white,
ShapeburstColorType colorType = SimpleTwoColor,
int blurRadius = 0, bool useWholeShape = true, double maxDistance = 5 );
~QgsShapeburstFillSymbolLayer() override;
/**
* QgsShapeburstFillSymbolLayer cannot be copied.
* \see clone()
*/
QgsShapeburstFillSymbolLayer( const QgsShapeburstFillSymbolLayer &other ) = delete;
/**
* QgsShapeburstFillSymbolLayer cannot be copied.
* \see clone()
*/
QgsShapeburstFillSymbolLayer &operator=( const QgsShapeburstFillSymbolLayer &other ) = delete;
// static stuff
/**
* Creates a new QgsShapeburstFillSymbolLayer using the specified \a properties map containing symbol properties (see properties()).
*
* Caller takes ownership of the returned symbol layer.
*/
static QgsSymbolLayer *create( const QgsStringMap &properties = QgsStringMap() ) SIP_FACTORY;
// implemented from base classes
QString layerType() const override;
void startRender( QgsSymbolRenderContext &context ) override;
void stopRender( QgsSymbolRenderContext &context ) override;
void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
QgsStringMap properties() const override;
QgsShapeburstFillSymbolLayer *clone() const override SIP_FACTORY;
double estimateMaxBleed( const QgsRenderContext &context ) const override;
/**
* Sets the blur radius, which controls the amount of blurring applied to the fill.
* \param blurRadius Radius for fill blur. Values between 0 - 17 are valid, where higher values results in a stronger blur. Set to 0 to disable blur.
* \see blurRadius
* \since QGIS 2.3
*/
void setBlurRadius( int blurRadius ) { mBlurRadius = blurRadius; }
/**
* Returns the blur radius, which controls the amount of blurring applied to the fill.
* \returns Integer representing the radius for fill blur. Higher values indicate a stronger blur. A 0 value indicates that blurring is disabled.
* \see setBlurRadius
* \since QGIS 2.3
*/
int blurRadius() const { return mBlurRadius; }
/**
* Sets whether the shapeburst fill should be drawn using the entire shape.
* \param useWholeShape Set to TRUE if shapeburst should cover entire shape. If FALSE, setMaxDistance is used to calculate how far from the boundary of the shape should
* be shaded
* \see useWholeShape
* \see setMaxDistance
* \since QGIS 2.3
*/
void setUseWholeShape( bool useWholeShape ) { mUseWholeShape = useWholeShape; }
/**
* Returns whether the shapeburst fill is set to cover the entire shape.
* \returns TRUE if shapeburst fill will cover the entire shape. If FALSE, shapeburst is drawn to a distance of maxDistance from the polygon's boundary.
* \see setUseWholeShape
* \see maxDistance
* \since QGIS 2.3
*/
bool useWholeShape() const { return mUseWholeShape; }
/**
* Sets the maximum distance to shape inside of the shape from the polygon's boundary.
* \param maxDistance distance from boundary to shade. setUseWholeShape must be set to FALSE for this parameter to take effect. Distance unit is controlled by setDistanceUnit.
* \see maxDistance
* \see setUseWholeShape
* \see setDistanceUnit
* \since QGIS 2.3
*/
void setMaxDistance( double maxDistance ) { mMaxDistance = maxDistance; }
/**
* Returns the maximum distance from the shape's boundary which is shaded. This parameter is only effective if useWholeShape is FALSE.
* \returns the maximum distance from the polygon's boundary which is shaded. Distance units are indicated by distanceUnit.
* \see useWholeShape
* \see setMaxDistance
* \see distanceUnit
* \since QGIS 2.3
*/
double maxDistance() const { return mMaxDistance; }
/**
* Sets the unit for the maximum distance to shade inside of the shape from the polygon's boundary.
* \param unit distance unit for the maximum distance
* \see setMaxDistance
* \see distanceUnit
* \since QGIS 2.3
*/
void setDistanceUnit( QgsUnitTypes::RenderUnit unit ) { mDistanceUnit = unit; }
/**
* Returns the unit for the maximum distance to shade inside of the shape from the polygon's boundary.
* \returns distance unit for the maximum distance
* \see maxDistance
* \see setDistanceUnit
* \since QGIS 2.3
*/
QgsUnitTypes::RenderUnit distanceUnit() const { return mDistanceUnit; }
void setDistanceMapUnitScale( const QgsMapUnitScale &scale ) { mDistanceMapUnitScale = scale; }
const QgsMapUnitScale &distanceMapUnitScale() const { return mDistanceMapUnitScale; }
/**
* Sets the color mode to use for the shapeburst fill. Shapeburst can either be drawn using a QgsColorRamp color ramp
* or by simply specificing a start and end color. setColorType is used to specify which mode to use for the fill.
* \param colorType color type to use for shapeburst fill
* \see colorType
* \see setColor
* \see setColor2
* \see setColorRamp
* \since QGIS 2.3
*/
void setColorType( ShapeburstColorType colorType ) { mColorType = colorType; }
/**
* Returns the color mode used for the shapeburst fill. Shapeburst can either be drawn using a QgsColorRamp color ramp
* or by simply specificing a start and end color.
* \returns current color mode used for the shapeburst fill
* \see setColorType
* \see color
* \see color2
* \see colorRamp
* \since QGIS 2.3
*/
ShapeburstColorType colorType() const { return mColorType; }
/**
* Sets the color \a ramp used to draw the shapeburst fill. Color ramps are only used if setColorType is set ShapeburstColorType::ColorRamp.
*
* Ownership of \a ramp is transferred to the fill.
*
* \see setColorType
* \see colorRamp
* \since QGIS 2.3
*/
void setColorRamp( QgsColorRamp *ramp SIP_TRANSFER );
/**
* Returns the color ramp used for the shapeburst fill. The color ramp is only used if the colorType is set to ShapeburstColorType::ColorRamp
* \returns a QgsColorRamp color ramp
* \see setColorRamp
* \see colorType
* \since QGIS 2.3
*/
QgsColorRamp *colorRamp() { return mGradientRamp.get(); }
/**
* Sets the color for the endpoint of the shapeburst fill. This color is only used if setColorType is set ShapeburstColorType::SimpleTwoColor.
* \param color2 QColor to use for endpoint of gradient
* \see setColorType
* \see color2
* \since QGIS 2.3
*/
void setColor2( const QColor &color2 ) { mColor2 = color2; }
/**
* Returns the color used for the endpoint of the shapeburst fill. This color is only used if the colorType is set to ShapeburstColorType::SimpleTwoColor
* \returns a QColor indicating the color of the endpoint of the gradient
* \see setColor2
* \see colorType
* \since QGIS 2.3
*/
QColor color2() const { return mColor2; }
/**
* Sets whether the shapeburst fill should ignore polygon rings when calculating
* the buffered shading.
* \param ignoreRings Set to TRUE if buffers should ignore interior rings for polygons.
* \see ignoreRings
* \since QGIS 2.3
*/
void setIgnoreRings( bool ignoreRings ) { mIgnoreRings = ignoreRings; }
/**
* Returns whether the shapeburst fill is set to ignore polygon interior rings.
* \returns TRUE if the shapeburst fill will ignore interior rings when calculating buffered shading.
* \see setIgnoreRings
* \since QGIS 2.3
*/
bool ignoreRings() const { return mIgnoreRings; }
/**
* Sets the offset for the shapeburst fill.
* \param offset QPointF indicating the horizontal/vertical offset amount
* \see offset
* \see setOffsetUnit
* \since QGIS 2.3
*/
void setOffset( QPointF offset ) { mOffset = offset; }
/**
* Returns the offset for the shapeburst fill.
* \returns a QPointF indicating the horizontal/vertical offset amount
* \see setOffset
* \see offsetUnit
* \since QGIS 2.3
*/
QPointF offset() const { return mOffset; }
/**
* Sets the units used for the offset for the shapeburst fill.
* \param unit units for fill offset
* \see setOffset
* \see offsetUnit
* \since QGIS 2.3
*/
void setOffsetUnit( QgsUnitTypes::RenderUnit unit ) { mOffsetUnit = unit; }
/**
* Returns the units used for the offset of the shapeburst fill.
* \returns units used for the fill offset
* \see offset
* \see setOffsetUnit
* \since QGIS 2.3
*/
QgsUnitTypes::RenderUnit offsetUnit() const { return mOffsetUnit; }
void setOffsetMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetMapUnitScale = scale; }
const QgsMapUnitScale &offsetMapUnitScale() const { return mOffsetMapUnitScale; }
void setOutputUnit( QgsUnitTypes::RenderUnit unit ) override;
QgsUnitTypes::RenderUnit outputUnit() const override;
void setMapUnitScale( const QgsMapUnitScale &scale ) override;
QgsMapUnitScale mapUnitScale() const override;
private:
QBrush mBrush;
QBrush mSelBrush;
int mBlurRadius = 0;
bool mUseWholeShape = true;
double mMaxDistance = 5.0;
QgsUnitTypes::RenderUnit mDistanceUnit = QgsUnitTypes::RenderMillimeters;
QgsMapUnitScale mDistanceMapUnitScale;
ShapeburstColorType mColorType = SimpleTwoColor;
QColor mColor2;
bool mIgnoreRings = false;
QPointF mOffset;
QgsUnitTypes::RenderUnit mOffsetUnit = QgsUnitTypes::RenderMillimeters;
QgsMapUnitScale mOffsetMapUnitScale;
std::unique_ptr< QgsColorRamp > mGradientRamp;
//helper functions for data defined symbology
void applyDataDefinedSymbology( QgsSymbolRenderContext &context, QColor &color, QColor &color2, int &blurRadius, bool &useWholeShape,
double &maxDistance, bool &ignoreRings );
/* distance transform of a 1d function using squared distance */
void distanceTransform1d( double *f, int n, int *v, double *z, double *d );
/* distance transform of 2d function using squared distance */
void distanceTransform2d( double *im, int width, int height, QgsRenderContext &context );
/* distance transform of a binary QImage */
double *distanceTransform( QImage *im, QgsRenderContext &context );
/* fills a QImage with values from an array of doubles containing squared distance transform values */
void dtArrayToQImage( double *array, QImage *im, QgsColorRamp *ramp, QgsRenderContext &context, bool useWholeShape = true, int maxPixelDistance = 0 );
#ifdef SIP_RUN
QgsShapeburstFillSymbolLayer( const QgsShapeburstFillSymbolLayer &other );
#endif
};
/**
* \ingroup core
* Base class for polygon renderers generating texture images
*/
class CORE_EXPORT QgsImageFillSymbolLayer: public QgsFillSymbolLayer
{
public:
QgsImageFillSymbolLayer();
void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
QgsSymbol *subSymbol() override { return mStroke.get(); }
bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) override;
/**
* Sets the \a units fo the symbol's stroke width.
* \see strokeWidthUnit()
* \see setStrokeWidthMapUnitScale()
*/
void setStrokeWidthUnit( QgsUnitTypes::RenderUnit unit ) { mStrokeWidthUnit = unit; }
/**
* Returns the units for the symbol's stroke width.
* \see setStrokeWidthUnit()
* \see strokeWidthMapUnitScale()
*/
QgsUnitTypes::RenderUnit strokeWidthUnit() const { return mStrokeWidthUnit; }
/**
* Sets the stroke width map unit \a scale.
*
* \see strokeWidthMapUnitScale()
* \see setStrokeWidthUnit()
*/
void setStrokeWidthMapUnitScale( const QgsMapUnitScale &scale ) { mStrokeWidthMapUnitScale = scale; }
/**
* Returns the stroke width map unit scale.
*
* \see setStrokeWidthMapUnitScale()
* \see strokeWidthUnit()
*
* \since QGIS 2.16
*/
const QgsMapUnitScale &strokeWidthMapUnitScale() const { return mStrokeWidthMapUnitScale; }
void setOutputUnit( QgsUnitTypes::RenderUnit unit ) override;
QgsUnitTypes::RenderUnit outputUnit() const override;
void setMapUnitScale( const QgsMapUnitScale &scale ) override;
QgsMapUnitScale mapUnitScale() const override;
double estimateMaxBleed( const QgsRenderContext &context ) const override;
double dxfWidth( const QgsDxfExport &e, QgsSymbolRenderContext &context ) const override;
QColor dxfColor( QgsSymbolRenderContext &context ) const override;
Qt::PenStyle dxfPenStyle() const override;
QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
bool hasDataDefinedProperties() const override;
protected:
QBrush mBrush;
double mNextAngle = 0.0; // mAngle / data defined angle
//! Stroke width
double mStrokeWidth = 0.0;
QgsUnitTypes::RenderUnit mStrokeWidthUnit = QgsUnitTypes::RenderMillimeters;
QgsMapUnitScale mStrokeWidthMapUnitScale;
//! Custom stroke
std::unique_ptr< QgsLineSymbol > mStroke;
virtual void applyDataDefinedSettings( QgsSymbolRenderContext &context ) { Q_UNUSED( context ) }
/**
* Returns TRUE if the image brush should be transformed using the render context's texture origin.
*
* \since QGIS 3.16
*/
virtual bool applyBrushTransformFromContext() const;
private:
#ifdef SIP_RUN
QgsImageFillSymbolLayer( const QgsImageFillSymbolLayer &other );
#endif
};
/**
* \ingroup core
* \class QgsRasterFillSymbolLayer
* \brief A class for filling symbols with a repeated raster image.
* \since QGIS 2.7
*/
class CORE_EXPORT QgsRasterFillSymbolLayer: public QgsImageFillSymbolLayer
{
public:
//! Fill coordinate modes, dictates fill tiling behavior
enum FillCoordinateMode
{
Feature, //!< Tiling is based on feature bounding box
Viewport, //!< Tiling is based on complete map viewport
};
/**
* Constructor for QgsRasterFillSymbolLayer, using a raster fill from the
* specified \a imageFilePath.
*/
QgsRasterFillSymbolLayer( const QString &imageFilePath = QString() );
/**
* Creates a new QgsRasterFillSymbolLayer from a \a properties map. The caller takes
* ownership of the returned object.
*/
static QgsSymbolLayer *create( const QgsStringMap &properties = QgsStringMap() ) SIP_FACTORY;
/**
* Turns relative paths in properties map to absolute when reading and vice versa when writing.
* Used internally when reading/writing symbols.
* \since QGIS 3.0
*/
static void resolvePaths( QgsStringMap &properties, const QgsPathResolver &pathResolver, bool saving );
// implemented from base classes
QString layerType() const override;
void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
void startRender( QgsSymbolRenderContext &context ) override;
void stopRender( QgsSymbolRenderContext &context ) override;
QgsStringMap properties() const override;
QgsRasterFillSymbolLayer *clone() const override SIP_FACTORY;
double estimateMaxBleed( const QgsRenderContext &context ) const override;
//override QgsImageFillSymbolLayer's support for sub symbols
QgsSymbol *subSymbol() override { return nullptr; }
bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) override;
/**
* Sets the path to the raster image used for the fill.
* \param imagePath path to image file
* \see imageFilePath
*/
void setImageFilePath( const QString &imagePath );
/**
* The path to the raster image used for the fill.
* \returns path to image file
* \see setImageFilePath
*/
QString imageFilePath() const { return mImageFilePath; }
/**
* Set the coordinate mode for fill. Controls how the top left corner of the image
* fill is positioned relative to the feature.
* \param mode coordinate mode
* \see coordinateMode
*/
void setCoordinateMode( FillCoordinateMode mode );
/**
* Coordinate mode for fill. Controls how the top left corner of the image
* fill is positioned relative to the feature.
* \returns coordinate mode
* \see setCoordinateMode
*/
FillCoordinateMode coordinateMode() const { return mCoordinateMode; }
/**
* Sets the \a opacity for the raster image used in the fill.
* \param opacity opacity value between 0 (fully transparent) and 1 (fully opaque)
* \see opacity()
*/
void setOpacity( double opacity );
/**
* Returns the opacity for the raster image used in the fill.
* \returns opacity value between 0 (fully transparent) and 1 (fully opaque)
* \see setOpacity()
*/
double opacity() const { return mOpacity; }
/**
* Sets the offset for the fill.
* \param offset offset for fill
* \see offset
* \see setOffsetUnit
* \see setOffsetMapUnitScale
*/
void setOffset( QPointF offset ) { mOffset = offset; }
/**
* Returns the offset for the fill.
* \returns offset for fill
* \see setOffset
* \see offsetUnit
* \see offsetMapUnitScale
*/
QPointF offset() const { return mOffset; }
/**
* Sets the units for the fill's offset.
* \param unit units for offset
* \see offsetUnit
* \see setOffset
* \see setOffsetMapUnitScale
*/
void setOffsetUnit( const QgsUnitTypes::RenderUnit unit ) { mOffsetUnit = unit; }
/**
* Returns the units for the fill's offset.
* \returns units for offset
* \see setOffsetUnit
* \see offset
* \see offsetMapUnitScale
*/
QgsUnitTypes::RenderUnit offsetUnit() const { return mOffsetUnit; }
/**
* Sets the map unit scale for the fill's offset.
* \param scale map unit scale for offset
* \see offsetMapUnitScale
* \see setOffset
* \see setOffsetUnit
*/
void setOffsetMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetMapUnitScale = scale; }
/**
* Returns the map unit scale for the fill's offset.
* \returns map unit scale for offset
* \see setOffsetMapUnitScale
* \see offset
* \see offsetUnit
*/
const QgsMapUnitScale &offsetMapUnitScale() const { return mOffsetMapUnitScale; }
/**
* Sets the width for scaling the image used in the fill. The image's height will also be
* scaled to maintain the image's aspect ratio.
* \param width width for scaling the image
* \see width
* \see setWidthUnit
* \see setWidthMapUnitScale
*/
void setWidth( const double width ) { mWidth = width; }
/**
* Returns the width used for scaling the image used in the fill. The image's height is
* scaled to maintain the image's aspect ratio.
* \returns width used for scaling the image
* \see setWidth
* \see widthUnit
* \see widthMapUnitScale
*/
double width() const { return mWidth; }
/**
* Sets the units for the image's width.
* \param unit units for width
* \see widthUnit
* \see setWidth
* \see setWidthMapUnitScale
*/
void setWidthUnit( const QgsUnitTypes::RenderUnit unit ) { mWidthUnit = unit; }
/**
* Returns the units for the image's width.
* \returns units for width
* \see setWidthUnit
* \see width
* \see widthMapUnitScale
*/
QgsUnitTypes::RenderUnit widthUnit() const { return mWidthUnit; }
/**
* Sets the map unit scale for the image's width.
* \param scale map unit scale for width
* \see widthMapUnitScale
* \see setWidth
* \see setWidthUnit
*/
void setWidthMapUnitScale( const QgsMapUnitScale &scale ) { mWidthMapUnitScale = scale; }
/**
* Returns the map unit scale for the image's width.
* \returns map unit scale for width
* \see setWidthMapUnitScale
* \see width
* \see widthUnit
*/
const QgsMapUnitScale &widthMapUnitScale() const { return mWidthMapUnitScale; }
protected:
void applyDataDefinedSettings( QgsSymbolRenderContext &context ) override;
bool applyBrushTransformFromContext() const override;
private: