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/** \ingroup core
* \class QgsTransformEffect
* \brief A paint effect which applies transformations (such as move,
* scale and rotate) to a picture.
*
* \note Added in version 2.9
*/
class QgsTransformEffect : QgsPaintEffect
{
%TypeHeaderCode
#include <qgstransformeffect.h>
%End
public:
/** Creates a new QgsTransformEffect effect from a properties string map.
* @param map encoded properties string map
* @returns new QgsTransformEffect
*/
static QgsPaintEffect* create( const QgsStringMap& map ) /Factory/;
QgsTransformEffect();
virtual ~QgsTransformEffect();
virtual QString type() const;
virtual QgsStringMap properties() const;
virtual void readProperties( const QgsStringMap& props );
virtual QgsTransformEffect* clone() const /Factory/;
/** Sets the transform x translation.
* @param translateX distance to translate along the x axis
* @see translateX
* @see setTranslateY
* @see setTranslateUnit
* @see setTranslateMapUnitScale
*/
void setTranslateX( const double translateX );
/** Returns the transform x translation.
* @returns X distance translated along the x axis
* @see setTranslateX
* @see translateY
* @see translateUnit
* @see translateMapUnitScale
*/
double translateX() const;
/** Sets the transform y translation.
* @param translateY distance to translate along the y axis
* @see translateY
* @see setTranslateX
* @see setTranslateUnit
* @see setTranslateMapUnitScale
*/
void setTranslateY( const double translateY );
/** Returns the transform y translation.
* @returns Y distance translated along the y axis
* @see setTranslateY
* @see translateX
* @see translateUnit
* @see translateMapUnitScale
*/
double translateY() const;
/** Sets the units used for the transform translation.
* @param unit units for translation
* @see translateUnit
* @see setTranslateX
* @see setTranslateY
* @see setTranslateMapUnitScale
*/
void setTranslateUnit( const QgsSymbolV2::OutputUnit unit );
/** Returns the units used for the transform translation.
* @returns units for translation
* @see setTranslateUnit
* @see translateX
* @see translateY
* @see translateMapUnitScale
*/
QgsSymbolV2::OutputUnit translateUnit() const;
/** Sets the map unit scale used for the transform translation.
* @param scale map unit scale for translation
* @see translateMapUnitScale
* @see setTranslateX
* @see setTranslateY
* @see setTranslateUnit
*/
void setTranslateMapUnitScale( const QgsMapUnitScale& scale );
/** Returns the map unit scale used for the transform translation.
* @returns map unit scale for translation
* @see setTranslateMapUnitScale
* @see translateX
* @see translateY
* @see translateUnit
*/
const QgsMapUnitScale& translateMapUnitScale() const;
/** Sets the x axis scaling factor.
* @param scaleX factor to scale x axis by, where 1.0 = no scaling
* @see scaleX
* @see setScaleY
*/
void setScaleX( const double scaleX );
/** Returns the x axis scaling factor.
* @returns x axis scaling factor, where 1.0 = no scaling
* @see setScaleX
* @see scaleY
*/
double scaleX() const;
/** Sets the y axis scaling factor.
* @param scaleY factor to scale y axis by, where 1.0 = no scaling
* @see scaleX
*/
void setScaleY( const double scaleY );
/** Returns the y axis scaling factor.
* @returns y axis scaling factor, where 1.0 = no scaling
* @see setScaleY
* @see scaleX
*/
double scaleY() const;
/** Sets the transform rotation.
* @param rotation degrees to rotate, clockwise
* @see rotation
*/
void setRotation( const double rotation );
/** Returns the transform rotation.
* @returns rotation in degrees clockwise
* @see setRotation
*/
double rotation() const;
/** Sets the x axis shearing factor.
* @param shearX x axis shearing
* @see shearX
* @see setShearY
*/
void setShearX( const double shearX );
/** Returns the x axis shearing factor.
* @returns x axis shearing
* @see setShearX
* @see shearY
*/
double shearX() const;
/** Sets the y axis shearing factor.
* @param shearY y axis shearing
* @see shearY
* @see setShearX
*/
void setShearY( const double shearY );
/** Returns the y axis shearing factor.
* @returns y axis shearing
* @see setShearY
* @see shearX
*/
double shearY() const;
/** Sets whether to reflect along the x-axis
* @param reflectX true to reflect horizontally
* @see reflectX
* @see setReflectY
*/
void setReflectX( const bool reflectX );
/** Returns whether transform will be reflected along the x-axis
* @returns true if transform will reflect horizontally
* @see setReflectX
* @see reflectY
*/
bool reflectX() const;
/** Sets whether to reflect along the y-axis
* @param reflectY true to reflect horizontally
* @see reflectY
* @see setReflectX
*/
void setReflectY( const bool reflectY );
/** Returns whether transform will be reflected along the y-axis
* @returns true if transform will reflect horizontally
* @see setReflectY
* @see reflectX
*/
bool reflectY() const;
protected:
virtual void draw( QgsRenderContext& context );
virtual QRectF boundingRect( const QRectF& rect, const QgsRenderContext& context ) const;
};
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