DropShadowEffect Class Reference

An effect filter that adds a drop-shadow behind the image's content. More...

Inheritance diagram for DropShadowEffect:

Public Member Functions
	DropShadowEffect ()
	Creates a default drop-shadow effect.
	~DropShadowEffect () override
	Destructor.
void	setShadowProperties (const DropShadow &newShadow)
	Sets up parameters affecting the shadow's appearance.
void	applyEffect (Image &sourceImage, Graphics &destContext, float scaleFactor, float alpha) override
Public Member Functions inherited from ImageEffectFilter
virtual void	applyEffect (Image &sourceImage, Graphics &destContext, float scaleFactor, float alpha)=0
	Overridden to render the effect.
virtual	~ImageEffectFilter ()=default
	Destructor.

Detailed Description

An effect filter that adds a drop-shadow behind the image's content.

(This will only work on images/components that aren't opaque, of course).

When added to a component, this effect will draw a soft-edged shadow based on what gets drawn inside it. The shadow will also be applied to the component's children.

For speed, this doesn't use a proper gaussian blur, but cheats by using a simple bilinear filter. If you need a really high-quality shadow, check out ImageConvolutionKernel::createGaussianBlur()

See also

Component::setComponentEffect

Constructor & Destructor Documentation

DropShadowEffect()

DropShadowEffect::DropShadowEffect

(

)

Creates a default drop-shadow effect.

To customise the shadow's appearance, use the setShadowProperties() method.

~DropShadowEffect()

DropShadowEffect::~DropShadowEffect ( )

override

Destructor.

Member Function Documentation

setShadowProperties()

void DropShadowEffect::setShadowProperties

(

const DropShadow &

newShadow

)

Sets up parameters affecting the shadow's appearance.

applyEffect()

void DropShadowEffect::applyEffect ( Image &  sourceImage, Graphics &  destContext, float  scaleFactor, float  alpha  )

overridevirtual

Implements ImageEffectFilter.

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The documentation for this class was generated from the following file:

• juce_DropShadowEffect.h