com.mxgraph.reader

Class mxGraphViewImageReader

java.lang.Object

org.xml.sax.helpers.DefaultHandler

com.mxgraph.reader.mxGraphViewReader

com.mxgraph.reader.mxGraphViewImageReader

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class mxGraphViewImageReader
extends mxGraphViewReader

A converter that renders display XML data onto a graphics canvas. This reader can only be used to generate images for encoded graph views.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	antiAlias Specifies if the image should be anti-aliased.
protected Color	background Specifies the background color.
protected int	border Specifies the border which is added to the size of the graph.
protected mxRectangle	clip Defines the clip to be drawn.
protected boolean	cropping Specifies the border which is added to the size of the graph.

Fields inherited from class com.mxgraph.reader.mxGraphViewReader

canvas, htmlLabels, scale

Constructor Summary

Constructors

Constructor and Description
mxGraphViewImageReader() Constructs a new reader with a transparent background.
mxGraphViewImageReader(Color background) Constructs a new reader with the given background color.
mxGraphViewImageReader(Color background, int border) Constructs a new reader with a transparent background.
mxGraphViewImageReader(Color background, int border, boolean antiAlias) Constructs a new reader with a transparent background.
mxGraphViewImageReader(Color background, int border, boolean antiAlias, boolean cropping) Constructs a new reader with a transparent background.

Method Summary

Modifier and Type	Method and Description
static BufferedImage	convert(InputSource inputSource, mxGraphViewImageReader viewReader) Creates the image for the given display XML input source.
static BufferedImage	convert(String filename, mxGraphViewImageReader viewReader) Creates the image for the given display XML file.
mxICanvas	createCanvas(Map<String,Object> attrs) Returns the canvas to be used for rendering.
protected mxGraphics2DCanvas	createGraphicsCanvas() Hook that creates the graphics canvas.
Color	getBackground()
int	getBorder()
mxRectangle	getClip()
boolean	isAntiAlias()
boolean	isCropping() Specifies the optional clipping rectangle.
void	setAntiAlias(boolean antiAlias)
void	setBackground(Color background)
void	setBorder(int border)
void	setClip(mxRectangle value)
void	setCropping(boolean value)

Methods inherited from class com.mxgraph.reader.mxGraphViewReader

getCanvas, isHtmlLabels, parseElement, parsePoints, parseState, setHtmlLabels, startElement

Methods inherited from class org.xml.sax.helpers.DefaultHandler

characters, endDocument, endElement, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Field Detail

background

protected Color background

Specifies the background color. Default is null.

antiAlias

protected boolean antiAlias

Specifies if the image should be anti-aliased. Default is true.

border

protected int border

Specifies the border which is added to the size of the graph. Default is 0.

cropping

protected boolean cropping

Specifies the border which is added to the size of the graph. Default is true.

clip

protected mxRectangle clip

Defines the clip to be drawn. Default is null.

Constructor Detail

mxGraphViewImageReader

public mxGraphViewImageReader()

Constructs a new reader with a transparent background.

mxGraphViewImageReader

public mxGraphViewImageReader(Color background)

Constructs a new reader with the given background color.

mxGraphViewImageReader

public mxGraphViewImageReader(Color background,
                              int border)

Constructs a new reader with a transparent background.

mxGraphViewImageReader

public mxGraphViewImageReader(Color background,
                              int border,
                              boolean antiAlias)

Constructs a new reader with a transparent background.

mxGraphViewImageReader

public mxGraphViewImageReader(Color background,
                              int border,
                              boolean antiAlias,
                              boolean cropping)

Constructs a new reader with a transparent background.

Method Detail

getBackground

public Color getBackground()

setBackground

public void setBackground(Color background)

getBorder

public int getBorder()

setBorder

public void setBorder(int border)

isAntiAlias

public boolean isAntiAlias()

setAntiAlias

public void setAntiAlias(boolean antiAlias)

isCropping

public boolean isCropping()

Specifies the optional clipping rectangle.

setCropping

public void setCropping(boolean value)

getClip

public mxRectangle getClip()

setClip

public void setClip(mxRectangle value)

createCanvas

public mxICanvas createCanvas(Map<String,Object> attrs)

Description copied from class: mxGraphViewReader

Returns the canvas to be used for rendering.

Specified by:

createCanvas in class mxGraphViewReader

Parameters:

attrs - Specifies the attributes of the new canvas.

Returns:

Returns a new canvas.

createGraphicsCanvas

protected mxGraphics2DCanvas createGraphicsCanvas()

Hook that creates the graphics canvas.

convert

public static BufferedImage convert(String filename,
                                    mxGraphViewImageReader viewReader)
                             throws ParserConfigurationException,
                                    SAXException,
                                    IOException

Creates the image for the given display XML file. (Note: The XML file is an encoded mxGraphView, not mxGraphModel.)

Parameters:

filename - Filename of the display XML file.

Returns:

Returns an image representing the display XML file.

Throws:

ParserConfigurationException

SAXException

IOException

convert

public static BufferedImage convert(InputSource inputSource,
                                    mxGraphViewImageReader viewReader)
                             throws ParserConfigurationException,
                                    SAXException,
                                    IOException

Creates the image for the given display XML input source. (Note: The XML is an encoded mxGraphView, not mxGraphModel.)

Parameters:

inputSource - Input source that contains the display XML.

Returns:

Returns an image representing the display XML input source.

Throws:

ParserConfigurationException

SAXException

IOException