程序包 ohos.agp.utils

类 Contour

java.lang.Object

ohos.agp.utils.Contour

public class Contour
extends Object

Describes the contour of a component.

You can clip or draw a shadow by using a contour, which takes the form of a right-angled rectangle, a rounded rectangle, an oval, or a convex polygon.

从以下版本开始:

5

构造器概要

构造器

构造器	说明
Contour()	Default constructor used to create a Contour instance.

方法概要

限定符和类型	方法	说明
void	clear()	Set the contour to be empty.
int	getAlpha()	Obtains the alpha value of the contour.
Color	getContourColor()	Obtains the color of the contour.
float	getRadius()	Obtains the radius of the current contour.
boolean	getRect(Rect rect)	Sets the given rectangle with the rectangle of the current contour.
boolean	isEmpty()	Checks whether the current contour is empty, clear().
void	set(Contour srcContour)	Replaces the current contour with another contour.
void	setAlpha(int alpha)	Sets the alpha value of the contour.
void	setContourColor(Color color)	Sets the color of the contour.
void	setContourEncompassRect(int left, int top, int right, int bottom, float radius)	Sets the contour by passing the coordinates of the rectangle and the radius of its rounded corners.
void	setContourRect(int left, int top, int right, int bottom)	Sets the contour by passing the coordinates of the rectangle.
void	setContourRect(Rect rect)	Sets the contour using the specified rectangle.
void	setConvexPath(Path path)	Sets the contour to a convex path.
void	setOval(int left, int top, int right, int bottom)	Sets the contour of an oval based on the coordinates of the specified rectangle.
void	setOval(Rect rect)	Sets the contour of an oval based on the specified Rect object.
void	translate(int dx, int dy)	Translates the current contour.

从类继承的方法 java.lang.Object

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

构造器详细资料

Contour

public Contour()

Default constructor used to create a Contour instance.

从以下版本开始:

5

方法详细资料

setContourEncompassRect

public void setContourEncompassRect(int left,
                                    int top,
                                    int right,
                                    int bottom,
                                    float radius)

Sets the contour by passing the coordinates of the rectangle and the radius of its rounded corners.

参数:

left - Indicates the X coordinate of the upper left corner of the specified rectangle.

top - Indicates the Y coordinate of the upper left corner of the specified rectangle.

right - Indicates the X coordinate of the lower right corner of the specified rectangle.

bottom - Indicates the Y coordinate of the lower right corner of the specified rectangle.

radius - Indicates the radius of the rectangle's rounded corners.

从以下版本开始:

5

translate

public void translate(int dx,
                      int dy)

Translates the current contour.

参数:

dx - Indicates the length to translate on the x axis.

dy - Indicates the length to translate on the y axis.

从以下版本开始:

5

setContourRect

public void setContourRect(Rect rect)

Sets the contour using the specified rectangle.

参数:

rect - Indicates the specified rectangle.

从以下版本开始:

5

setContourRect

public void setContourRect(int left,
                           int top,
                           int right,
                           int bottom)

Sets the contour by passing the coordinates of the rectangle.

参数:

left - Indicates the X coordinate of the upper left corner of the specified rectangle.

top - Indicates the Y coordinate of the upper left corner of the specified rectangle.

right - Indicates the X coordinate of the lower right corner of the specified rectangle.

bottom - Indicates the Y coordinate of the lower right corner of the specified rectangle.

从以下版本开始:

5

setConvexPath

public void setConvexPath(Path path)

Sets the contour to a convex path.

参数:

path - Indicates the specified path.

从以下版本开始:

5

setOval

public void setOval(int left,
                    int top,
                    int right,
                    int bottom)

Sets the contour of an oval based on the coordinates of the specified rectangle.

参数:

left - Indicates the left bound of the rectangle.

top - Indicates the top bound of the rectangle.

right - Indicates the right bound of the rectangle.

bottom - Indicates the bottom bound of the rectangle.

从以下版本开始:

7

setOval

public void setOval(Rect rect)

Sets the contour of an oval based on the specified Rect object.

参数:

rect - Indicates the Rect object.

从以下版本开始:

7

set

public void set(Contour srcContour)

Replaces the current contour with another contour.

参数:

srcContour - Indicates the contour used to replace the current contour.

从以下版本开始:

7

isEmpty

public boolean isEmpty()

Checks whether the current contour is empty, clear().

返回:

Returns true if mMode is MODE_EMPTY, returns false otherwise.

从以下版本开始:

5

clear

public void clear()

Set the contour to be empty.

从以下版本开始:

7

getRadius

public float getRadius()

Obtains the radius of the current contour.

Only the contour of round rect or circle can get a effective value.

返回:

Returns the contour radius.

从以下版本开始:

5

getRect

public boolean getRect(Rect rect)

Sets the given rectangle with the rectangle of the current contour.

参数:

rect - Indicates the rectangle to set.

返回:

Returns true if the operation is successful, returns false otherwise.

从以下版本开始:

5

setAlpha

public void setAlpha(int alpha)

Sets the alpha value of the contour.

参数:

alpha - Indicates the alpha value to set. The value ranges from 0 to 255.

从以下版本开始:

7

getAlpha

public int getAlpha()

Obtains the alpha value of the contour.

返回:

Returns the alpha value of the contour.

从以下版本开始:

7

setContourColor

public void setContourColor(Color color)

Sets the color of the contour.

参数:

color - Indicates the color to set.

从以下版本开始:

7

getContourColor

public Color getContourColor()

Obtains the color of the contour.

返回:

Returns the color of the contour.

从以下版本开始:

7