Package com.vladsch.flexmark.util.misc

Class ImageUtils

java.lang.Object

com.vladsch.flexmark.util.misc.ImageUtils

public class ImageUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static Color	TRANSPARENT

Constructor Summary

Constructors

Constructor	Description
ImageUtils()

Method Summary

Modifier and Type	Method	Description
static BufferedImage	addBorder(BufferedImage image, Color borderColor, int borderWidth, int cornerRadius)
static BufferedImage	base64Decode(File file)
static BufferedImage	base64Decode(String encoded)
static String	base64Encode(BufferedImage image)
static String	base64Encode(File file)
static BufferedImage	cropImage(BufferedImage image, int trimLeft, int trimRight, int trimTop, int trimBottom)
static BufferedImage	drawHighlightOval(BufferedImage image, int x, int y, int w, int h, Color borderColor, int borderWidth, Color innerFillColor)
static BufferedImage	drawHighlightRectangle(BufferedImage image, int x, int y, int w, int h, Color borderColor, int borderWidth, int cornerRadius, Color innerFillColor)
static BufferedImage	drawOval(BufferedImage image, int x, int y, int w, int h, Color borderColor, int borderWidth, float[] dash, float dashPhase)
static BufferedImage	drawRectangle(BufferedImage image, int x, int y, int w, int h, Color borderColor, int borderWidth, int cornerRadius)
static BufferedImage	drawRectangle(BufferedImage image, int x, int y, int w, int h, Color borderColor, int borderWidth, int cornerRadius, float[] dash, float dashPhase)
static byte[]	getImageBytes(BufferedImage image)
static Image	getImageFromClipboard()
static Image	getImageFromTransferable(Transferable transferable)
static boolean	isEncodedImage(String encoded)
static boolean	isPossiblyEncodedImage(String encoded)
static BufferedImage	loadImageFromContent(byte[] cachedImageBytes, String idPath)
static BufferedImage	loadImageFromFile(File cachedImageFile)
static BufferedImage	loadImageFromURL(String imageURL)
static BufferedImage	loadImageFromURL(String imageURL, boolean logImageProcessing)	Load image from URL.
static BufferedImage	makeRoundedCorner(BufferedImage image, int cornerRadius, int borderWidth)
static BufferedImage	punchOuterHighlightOval(BufferedImage image, BufferedImage outerImage, int x, int y, int w, int h, int borderWidth, Color outerFillColor, int outerBorderWidth, int outerCornerRadius, boolean applyToImage)
static BufferedImage	punchOuterHighlightRectangle(BufferedImage image, BufferedImage outerImage, int x, int y, int w, int h, int borderWidth, int cornerRadius, Color outerFillColor, int outerBorderWidth, int outerCornerRadius, boolean applyToImage)
static BufferedImage	removeAlpha(BufferedImage image)
static void	save(BufferedImage image, File file, String format)
static BufferedImage	scaleImage(BufferedImage sourceImage, int newWidth, int newHeight, int opType)
static BufferedImage	toBufferedImage(Image src)
static Image	toTransparent(BufferedImage image, Color color, int tolerance)

Methods inherited from class java.lang.Object

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

Field Detail

TRANSPARENT

public static Color TRANSPARENT

Constructor Detail

ImageUtils

public ImageUtils()

Method Detail

getImageFromClipboard

public static Image getImageFromClipboard()

getImageFromTransferable

public static Image getImageFromTransferable(Transferable transferable)

scaleImage

public static BufferedImage scaleImage(BufferedImage sourceImage,
                                       int newWidth,
                                       int newHeight,
                                       int opType)

toBufferedImage

public static BufferedImage toBufferedImage(Image src)

save

public static void save(BufferedImage image,
                        File file,
                        String format)

loadImageFromFile

public static BufferedImage loadImageFromFile(File cachedImageFile)

Parameters:

cachedImageFile - file

Returns:

Could be null if the image could not be read from the file (because of whatever strange reason).

loadImageFromContent

public static BufferedImage loadImageFromContent(byte[] cachedImageBytes,
                                                 String idPath)

Parameters:

cachedImageBytes - file

idPath - image file path for error reporting

Returns:

Could be null if the image could not be read from the file (because of whatever strange reason).

base64Encode

public static String base64Encode(BufferedImage image)

base64Encode

public static String base64Encode(File file)

base64Decode

public static BufferedImage base64Decode(File file)

isEncodedImage

public static boolean isEncodedImage(String encoded)

isPossiblyEncodedImage

public static boolean isPossiblyEncodedImage(String encoded)

base64Decode

public static BufferedImage base64Decode(String encoded)

loadImageFromURL

public static BufferedImage loadImageFromURL(String imageURL)

loadImageFromURL

public static BufferedImage loadImageFromURL(String imageURL,
                                             boolean logImageProcessing)

Load image from URL.

NOTE: Java7 JDK cannot load some images including GitHub emoji. Compiling this library with Java8 solves the problem.

Parameters:

imageURL - url of the image

logImageProcessing - true if errors are to print to console

Returns:

image or null if failed to download.

makeRoundedCorner

public static BufferedImage makeRoundedCorner(BufferedImage image,
                                              int cornerRadius,
                                              int borderWidth)

addBorder

public static BufferedImage addBorder(BufferedImage image,
                                      Color borderColor,
                                      int borderWidth,
                                      int cornerRadius)

drawRectangle

public static BufferedImage drawRectangle(BufferedImage image,
                                          int x,
                                          int y,
                                          int w,
                                          int h,
                                          Color borderColor,
                                          int borderWidth,
                                          int cornerRadius)

drawRectangle

public static BufferedImage drawRectangle(BufferedImage image,
                                          int x,
                                          int y,
                                          int w,
                                          int h,
                                          Color borderColor,
                                          int borderWidth,
                                          int cornerRadius,
                                          float[] dash,
                                          float dashPhase)

drawOval

public static BufferedImage drawOval(BufferedImage image,
                                     int x,
                                     int y,
                                     int w,
                                     int h,
                                     Color borderColor,
                                     int borderWidth,
                                     float[] dash,
                                     float dashPhase)

drawHighlightRectangle

public static BufferedImage drawHighlightRectangle(BufferedImage image,
                                                   int x,
                                                   int y,
                                                   int w,
                                                   int h,
                                                   Color borderColor,
                                                   int borderWidth,
                                                   int cornerRadius,
                                                   Color innerFillColor)

drawHighlightOval

public static BufferedImage drawHighlightOval(BufferedImage image,
                                              int x,
                                              int y,
                                              int w,
                                              int h,
                                              Color borderColor,
                                              int borderWidth,
                                              Color innerFillColor)

punchOuterHighlightRectangle

public static BufferedImage punchOuterHighlightRectangle(BufferedImage image,
                                                         BufferedImage outerImage,
                                                         int x,
                                                         int y,
                                                         int w,
                                                         int h,
                                                         int borderWidth,
                                                         int cornerRadius,
                                                         Color outerFillColor,
                                                         int outerBorderWidth,
                                                         int outerCornerRadius,
                                                         boolean applyToImage)

punchOuterHighlightOval

public static BufferedImage punchOuterHighlightOval(BufferedImage image,
                                                    BufferedImage outerImage,
                                                    int x,
                                                    int y,
                                                    int w,
                                                    int h,
                                                    int borderWidth,
                                                    Color outerFillColor,
                                                    int outerBorderWidth,
                                                    int outerCornerRadius,
                                                    boolean applyToImage)

cropImage

public static BufferedImage cropImage(BufferedImage image,
                                      int trimLeft,
                                      int trimRight,
                                      int trimTop,
                                      int trimBottom)

removeAlpha

public static BufferedImage removeAlpha(BufferedImage image)

toTransparent

public static Image toTransparent(BufferedImage image,
                                  Color color,
                                  int tolerance)

getImageBytes

public static byte[] getImageBytes(BufferedImage image)