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qgsblureffect.sip
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qgsblureffect.sip
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/** \ingroup core
* \class QgsBlurEffect
* \brief A paint effect which blurs a source picture, using a number of different blur
* methods.
*
* \note Added in version 2.9
*/
class QgsBlurEffect : QgsPaintEffect
{
%TypeHeaderCode
#include <qgsblureffect.h>
%End
public:
/** Available blur methods (algorithms) */
enum BlurMethod
{
StackBlur, /*< stack blur, a fast but low quality blur. Valid blur level values are between 0 - 16.*/
GaussianBlur /*< Gaussian blur, a slower but high quality blur. Blur level values are the distance in pixels for the blur operation. */
};
/** Creates a new QgsBlurEffect effect from a properties string map.
* @param map encoded properties string map
* @returns new QgsBlurEffect
*/
static QgsPaintEffect* create( const QgsStringMap& ) /Factory/;
QgsBlurEffect();
virtual ~QgsBlurEffect();
virtual QString type() const;
virtual QgsStringMap properties() const;
virtual void readProperties( const QgsStringMap& props );
virtual QgsPaintEffect* clone() const /Factory/;
/** Sets blur level (strength)
* @param level blur level. Depending on the current @link blurMethod @endlink, this parameter
* has different effects
* @see blurLevel
* @see blurMethod
*/
void setBlurLevel( const int level );
/** Returns the blur level (strength)
* @returns blur level. Depending on the current @link blurMethod @endlink, this parameter
* has different effects
* @see setBlurLevel
* @see blurMethod
*/
int blurLevel() const;
/** Sets the blur method (algorithm) to use for performing the blur.
* @param method blur method
* @see blurMethod
*/
void setBlurMethod( const BlurMethod method );
/** Returns the blur method (algorithm) used for performing the blur.
* @returns blur method
* @see setBlurMethod
*/
BlurMethod blurMethod() const;
/** Sets the transparency for the effect
* @param transparency double between 0 and 1 inclusive, where 0 is fully opaque
* and 1 is fully transparent
* @see transparency
*/
void setTransparency( const double transparency );
/** Returns the transparency for the effect
* @returns transparency value between 0 and 1 inclusive, where 0 is fully opaque
* and 1 is fully transparent
* @see setTransparency
*/
double transparency() const;
/** Sets the blend mode for the effect
* @param mode blend mode used for drawing the effect on to a destination
* paint device
* @see blendMode
*/
void setBlendMode( const QPainter::CompositionMode mode );
/** Returns the blend mode for the effect
* @returns blend mode used for drawing the effect on to a destination
* paint device
* @see setBlendMode
*/
QPainter::CompositionMode blendMode() const;
protected:
virtual void draw( QgsRenderContext& context );
virtual QRectF boundingRect( const QRectF& rect, const QgsRenderContext& context ) const;
};