com.groupdocs.viewer.handlers
Class ImageHandler

java.lang.Object
  com.groupdocs.viewer.handlers.ImageHandler

public class ImageHandler
extends Object

Provides some image manipulation functionality

Author:

Alex Bobkov

Field Summary

static int	BOTTOM
static int	BOTTOM_CENTER
static int	CENTER
static int	MIDDLE
static int	MIDDLE_CENTER

Constructor Summary

ImageHandler()

Method Summary

static void	addCaption(InputStream inputStream, OutputStream outputStream, String text, String color, Integer fontSize, int position) Add caption Adds caption message to the specified position of each page
static void	addCaption(String imagePath, String text, String color, Integer fontSize, int position) Add caption Adds caption message to the specified position of each page
static void	addEvaluationMessage(InputStream inputStream, OutputStream outputStream) Add evaluation message Adds evaluation message to the top of each page
static void	addEvaluationMessage(String imagePath) Add evaluation message Adds evaluation message to the top of each page
static void	addWatermark(InputStream inputStream, OutputStream outputStream, String text, String color, Integer fontSize, String position) Add watermark
static void	addWatermark(String imagePath, String text, String color, Integer fontSize, String position) Add watermark
static Color	parseColor(String color) Parse color
static void	resize(String imagePath, int width) Resize image with desired width On resize image ration is kept
static void	resize(String originalImagePath, String newImagePath, int width) Resize image with desired width and store it in new location

Methods inherited from class java.lang.Object

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

Field Detail

CENTER

public static final int CENTER

See Also:

Constant Field Values

MIDDLE

public static final int MIDDLE

See Also:

Constant Field Values

MIDDLE_CENTER

public static final int MIDDLE_CENTER

See Also:

Constant Field Values

BOTTOM

public static final int BOTTOM

See Also:

Constant Field Values

BOTTOM_CENTER

public static final int BOTTOM_CENTER

See Also:

Constant Field Values

Constructor Detail

ImageHandler

public ImageHandler()

Method Detail

resize

public static void resize(String imagePath,
                          int width)
                   throws Exception

Resize image with desired width
On resize image ration is kept

Parameters:

imagePath - Path to image file

width - New width

Throws:

Exception

resize

public static void resize(String originalImagePath,
                          String newImagePath,
                          int width)
                   throws Exception

Resize image with desired width and store it in new location

Parameters:

originalImagePath - Path to original image

newImagePath - Path to new image location

width - New width

Throws:

Exception

addWatermark

public static void addWatermark(String imagePath,
                                String text,
                                String color,
                                Integer fontSize,
                                String position)

Add watermark

Parameters:

imagePath - absolute path to image file

text - watermark text

color - watermark color
Acceptable values:
- \#fff000
- Red (Blue, White, etc)
- rgb(0,0,0)
- rgba(0,1,2,0.5)

fontSize - watermark font size

position - watermark position
Acceptable values:
- horizontal - vertical - diagonal

addWatermark

public static void addWatermark(InputStream inputStream,
                                OutputStream outputStream,
                                String text,
                                String color,
                                Integer fontSize,
                                String position)

Add watermark

Parameters:

inputStream - file to read

outputStream - file to write

text - watermark text

color - watermark color
Acceptable values:
- \#fff000
- Red (Blue, White, etc)
- rgb(0,0,0)
- rgba(0,1,2,0.5)

fontSize - watermark font size

position - watermark position
Acceptable values:
- horizontal - vertical - diagonal

addEvaluationMessage

public static void addEvaluationMessage(String imagePath)

Add evaluation message
Adds evaluation message to the top of each page

Parameters:

imagePath - absolute path to image file

addEvaluationMessage

public static void addEvaluationMessage(InputStream inputStream,
                                        OutputStream outputStream)

Add evaluation message
Adds evaluation message to the top of each page

Parameters:

inputStream - file to read

outputStream - file to write

addCaption

public static void addCaption(String imagePath,
                              String text,
                              String color,
                              Integer fontSize,
                              int position)

Add caption
Adds caption message to the specified position of each page

Parameters:

imagePath - absolute path to image file

text - message

color - color (null for default)
Acceptable values:
- \#fff000
- Red (Blue, White, etc)
- rgb(0,0,0)
- rgba(0,1,2,0.5)

fontSize - font size (null for default)

position - position on page where message will be added
Values:
ImageHandler.CENTER
ImageHandler.MIDDLE
ImageHandler.MIDDLE_CENTER
ImageHandler.BOTTOM
ImageHandler.BOTTOM_CENTER

addCaption

public static void addCaption(InputStream inputStream,
                              OutputStream outputStream,
                              String text,
                              String color,
                              Integer fontSize,
                              int position)

Add caption
Adds caption message to the specified position of each page

Parameters:

inputStream - file to read

outputStream - file to write

text - message

color - color (null for default)
Acceptable values:
- \#fff000
- Red (Blue, White, etc)
- rgb(0,0,0)
- rgba(0,1,2,0.5)

fontSize - font size (null for default)

position - position on page where message will be added
Values:
ImageHandler.CENTER
ImageHandler.MIDDLE
ImageHandler.MIDDLE_CENTER
ImageHandler.BOTTOM
ImageHandler.BOTTOM_CENTER

parseColor

public static Color parseColor(String color)

Parse color

Parameters:

color - string color
Acceptable values:
- \#fff000
- Red (Blue, White, etc)
- rgb(0,0,0)
- rgba(0,1,2,0.5)

Returns:

color