Class BaseMultiResolutionImage
- java.lang.Object
-
- java.awt.Image
-
- java.awt.image.AbstractMultiResolutionImage
-
- java.awt.image.BaseMultiResolutionImage
- All Implemented Interfaces:
MultiResolutionImage
public class BaseMultiResolutionImage extends AbstractMultiResolutionImage
This class is an array-based implementation of the AbstractMultiResolutionImage
class. This class will implement the getResolutionVariant(double destImageWidth, double destImageHeight)
method using a simple algorithm which will return the first image variant in the array that is large enough to satisfy the rendering request. The last image in the array will be returned if no suitable image is found that is as large as the rendering request.
For best effect the array of images should be sorted with each image being both wider and taller than the previous image. The base image need not be the first image in the array. No exception will be thrown if the images are not sorted as suggested.
- Since:
- 9
- See Also:
-
Image
,MultiResolutionImage
,AbstractMultiResolutionImage
Field Summary
Fields declared in class java.awt.Image
accelerationPriority, SCALE_AREA_AVERAGING, SCALE_DEFAULT, SCALE_FAST, SCALE_REPLICATE, SCALE_SMOOTH, UndefinedProperty
Constructor Summary
Constructor | Description |
---|---|
BaseMultiResolutionImage(int baseImageIndex,
Image... resolutionVariants) | Creates a multi-resolution image with the given base image index and resolution variants. |
BaseMultiResolutionImage(Image... resolutionVariants) | Creates a multi-resolution image with the given resolution variants. |
Method Summary
Methods declared in class java.awt.image.AbstractMultiResolutionImage
getBaseImage, getGraphics, getHeight, getProperty, getSource, getWidth
Methods declared in class java.awt.Image
flush, getAccelerationPriority, getCapabilities, getScaledInstance, setAccelerationPriority
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods declared in interface java.awt.image.MultiResolutionImage
getResolutionVariant, getResolutionVariants
Constructor Detail
BaseMultiResolutionImage
public BaseMultiResolutionImage(Image... resolutionVariants)
Creates a multi-resolution image with the given resolution variants. The first resolution variant is used as the base image.
- Parameters:
-
resolutionVariants
- array of resolution variants sorted by image size - Throws:
-
IllegalArgumentException
- if null or zero-length array is passed -
NullPointerException
- if the specifiedresolutionVariants
contains one or more null elements - Since:
- 9
BaseMultiResolutionImage
public BaseMultiResolutionImage(int baseImageIndex, Image... resolutionVariants)
Creates a multi-resolution image with the given base image index and resolution variants.
- Parameters:
-
baseImageIndex
- the index of base image in the resolution variants array -
resolutionVariants
- array of resolution variants sorted by image size - Throws:
-
IllegalArgumentException
- if null or zero-length array is passed -
NullPointerException
- if the specifiedresolutionVariants
contains one or more null elements -
IndexOutOfBoundsException
- ifbaseImageIndex
is negative or greater than or equal toresolutionVariants
length. - Since:
- 9