com.facebook.litho.widget

Class CardShadowDrawable

java.lang.Object

Drawable

com.facebook.litho.widget.CardShadowDrawable

public class CardShadowDrawable
extends Drawable

Method Summary

Modifier and Type	Method and Description
void	draw(Canvas canvas)
int	getOpacity()
static int	getShadowBottom(float shadowSize)
static int	getShadowBottom(float shadowSize, float shadowDy)
static int	getShadowLeft(float shadowSize)
static int	getShadowLeft(float shadowSize, float shadowDx)
static int	getShadowRight(float shadowSize)
static int	getShadowRight(float shadowSize, float shadowDx)
static int	getShadowTop(float shadowSize)
static int	getShadowTop(float shadowSize, float shadowDy)
void	setAlpha(int alpha)
void	setColorFilter(ColorFilter cf)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

setAlpha

public void setAlpha(int alpha)

getShadowLeft

public static int getShadowLeft(float shadowSize,
                                float shadowDx)

Parameters:

shadowSize -

shadowDx - Light source offset applied horizontally, i.e. if shadowDx is 0, the shadows on the left and right sides are both equal to shadowSize. If shadowDx is positive, the light source moves to the left side, hence left shadow is decreased by shadowDx while right shadow is increased by shadowDx. If shadowDx is negative, light source moves to the right side and left and right shadows are adjusted accordingly.

Returns:

Shadow applied to the left side of the element.

getShadowLeft

public static int getShadowLeft(float shadowSize)

Parameters:

shadowSize -

Returns:

Shadow applied to the left side of the element. Shadow offset is 0.

getShadowRight

public static int getShadowRight(float shadowSize,
                                 float shadowDx)

Parameters:

shadowSize -

shadowDx - Light source offset applied horizontally, i.e. if shadowDx is 0, the shadows on the left and right sides are both equal to shadowSize. If shadowDx is positive, the light source moves to the left side, hence left shadow is decreased by shadowDx while right shadow is increased by shadowDx. If shadowDx is negative, light source moves to the right side and left and right shadows are adjusted accordingly.

Returns:

Shadow applied to the right side of the element.

getShadowRight

public static int getShadowRight(float shadowSize)

Parameters:

shadowSize -

Returns:

Shadow applied to the right side of the element. Shadow offset is 0.

getShadowTop

public static int getShadowTop(float shadowSize,
                               float shadowDy)

Parameters:

shadowSize -

shadowDy - Light source offset applied vertically, i.e. if shadowDy is 0, the shadows on the top and bottom sides are both equal to shadowSize. If shadowDy is positive, the light source moves to the top side, hence top shadow is decreased by shadowDy while bottom shadow is increased by shadowDy. If shadowDy is negative, light source moves to the bottom side and top and bottom shadows are adjusted accordingly.

Returns:

Shadow applied to the top side of the element.

getShadowTop

public static int getShadowTop(float shadowSize)

Parameters:

shadowSize -

Returns:

Shadow applied to the top side of the element. Shadow offset equals to half of shadowSize.

getShadowBottom

public static int getShadowBottom(float shadowSize,
                                  float shadowDy)

Parameters:

shadowSize -

shadowDy - Light source offset applied vertically, i.e. if shadowDy is 0, the shadows on the top and bottom sides are both equal to shadowSize. If shadowDy is positive, the light source moves to the top side, hence top shadow is decreased by shadowDy while bottom shadow is increased by shadowDy. If shadowDy is negative, light source moves to the bottom side and top and bottom shadows are adjusted accordingly.

Returns:

Shadow applied to the bottom side of the element.

getShadowBottom

public static int getShadowBottom(float shadowSize)

Parameters:

shadowSize -

Returns:

Shadow applied to the bottom side of the element. Shadow offset equals to half of shadowSize.

setColorFilter

public void setColorFilter(ColorFilter cf)

getOpacity

public int getOpacity()

draw

public void draw(Canvas canvas)