PngImage
Inheritance: java.lang.Object, com.groupdocs.editor.htmlcss.resources.images.raster.RasterImageResourceBase
public final class PngImage extends RasterImageResourceBase
Represents one image in PNG (Portable Network Graphics) format with its metadata and additional methods
Constructors
| Constructor | Description |
|---|---|
| PngImage(String name, String contentInBase64) | Creates new PngImage instance from content, represented as base64-encoded string, and with specified name |
| PngImage(String name, InputStream binaryContent) | Creates new PngImage instance from content, represented as byte stream, and with specified name |
Methods
| Method | Description |
|---|---|
| isValid(InputStream binaryContent) | Checks whether specified stream is a valid PNG image |
| isValid(String contentInBase64) | Checks whether specified base64-encoded string is a valid PNG image |
| getType() | Returns ImageType.Png |
PngImage(String name, String contentInBase64)
public PngImage(String name, String contentInBase64)
Creates new PngImage instance from content, represented as base64-encoded string, and with specified name
Parameters:
| Parameter | Type | Description |
|---|---|---|
| name | java.lang.String | Name of the PNG image. Cannot be null, empty or whitespaces. |
| contentInBase64 | java.lang.String | Content as base64-encoded string. Cannot be null, empty or whitespaces. If it is not a PNG content, exception will be thrown. |
PngImage(String name, InputStream binaryContent)
public PngImage(String name, InputStream binaryContent)
Creates new PngImage instance from content, represented as byte stream, and with specified name
Parameters:
| Parameter | Type | Description |
|---|---|---|
| name | java.lang.String | Name of the PNG image. Cannot be null, empty or whitespaces. |
| binaryContent | java.io.InputStream | Content as byte stream. Reading begins from original position. Cannot be null. Should be readable and seekable. If this instance will be disposed, this stream will be disposed too. |
isValid(InputStream binaryContent)
public static boolean isValid(InputStream binaryContent)
Checks whether specified stream is a valid PNG image
Parameters:
| Parameter | Type | Description |
|---|---|---|
| binaryContent | java.io.InputStream | Byte stream, that presumably contains a PNG image |
Returns: boolean - True if specified stream contains valid PNG image, false otherwise
isValid(String contentInBase64)
public static boolean isValid(String contentInBase64)
Checks whether specified base64-encoded string is a valid PNG image
Parameters:
| Parameter | Type | Description |
|---|---|---|
| contentInBase64 | java.lang.String | Content of the presumably PNG image in a form of base64-encoded string |
Returns: boolean - True if specified string contains valid PNG image, false otherwise
getType()
public ImageType getType()
Returns ImageType.Png
Returns: ImageType -