17 #ifndef QGSBLUREFFECT_H 18 #define QGSBLUREFFECT_H 20 #include "qgis_core.h" 58 QString
type()
const override {
return QStringLiteral(
"blur" ); }
101 void setOpacity(
const double opacity ) { mOpacity = opacity; }
117 void setBlendMode(
const QPainter::CompositionMode mode ) { mBlendMode = mode; }
125 QPainter::CompositionMode
blendMode()
const {
return mBlendMode; }
136 double mOpacity = 1.0;
137 QPainter::CompositionMode mBlendMode = QPainter::CompositionMode_SourceOver;
144 #endif // QGSBLUREFFECT_H double opacity() const
Returns the opacity for the effect.
void setBlurMethod(const BlurMethod method)
Sets the blur method (algorithm) to use for performing the blur.
virtual QgsStringMap properties() const =0
Returns the properties describing the paint effect encoded in a string format.
void setOpacity(const double opacity)
Sets the opacity for the effect.
Base class for visual effects which can be applied to QPicture drawings.
QString type() const override
Returns the effect type.
void setBlurLevel(const int level)
Sets blur level (strength)
QMap< QString, QString > QgsStringMap
BlurMethod blurMethod() const
Returns the blur method (algorithm) used for performing the blur.
virtual QgsPaintEffect * clone() const =0
Duplicates an effect by creating a deep copy of the effect.
Stack blur, a fast but low quality blur. Valid blur level values are between 0 - 16.
BlurMethod
Available blur methods (algorithms)
int blurLevel() const
Returns the blur level (strength)
A paint effect which blurs a source picture, using a number of different blur methods.
virtual void readProperties(const QgsStringMap &props)=0
Reads a string map of an effect's properties and restores the effect to the state described by the pr...
Contains information about the context of a rendering operation.
virtual QRectF boundingRect(const QRectF &rect, const QgsRenderContext &context) const
Returns the bounding rect required for drawing the effect.
QPainter::CompositionMode blendMode() const
Returns the blend mode for the effect.
virtual void draw(QgsRenderContext &context)=0
Handles drawing of the effect's result on to the specified render context.
void setBlendMode(const QPainter::CompositionMode mode)
Sets the blend mode for the effect.