com.mxgraph.canvas

Class mxHtmlCanvas

java.lang.Object

com.mxgraph.canvas.mxBasicCanvas

com.mxgraph.canvas.mxHtmlCanvas

All Implemented Interfaces:

mxICanvas

public class mxHtmlCanvas
extends mxBasicCanvas

An implementation of a canvas that uses HTML for painting.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.w3c.dom.Document	document Holds the HTML document that represents the canvas.

Fields inherited from class com.mxgraph.canvas.mxBasicCanvas

DEFAULT_IMAGEBASEPATH, drawLabels, imageBasePath, imageCache, PRESERVE_IMAGE_ASPECT, scale, translate

Constructor Summary

Constructors

Constructor and Description
mxHtmlCanvas() Constructs a new HTML canvas for the specified dimension and scale.
mxHtmlCanvas(org.w3c.dom.Document document) Constructs a new HTML canvas for the specified bounds, scale and background color.

Method Summary

Modifier and Type	Method and Description
void	appendHtmlElement(org.w3c.dom.Element node)
java.lang.Object	drawCell(mxCellState state) Draws the given cell.
java.lang.Object	drawLabel(java.lang.String label, mxCellState state, boolean html) Draws the given label.
void	drawLine(java.util.List<mxPoint> pts, java.util.Map<java.lang.String,java.lang.Object> style) Draws the given lines as segments between all points of the given list of mxPoints.
protected void	drawSegment(int x0, int y0, int x1, int y1, java.lang.String strokeColor, int strokeWidth) Draws the specified segment of a line.
org.w3c.dom.Element	drawShape(int x, int y, int w, int h, java.util.Map<java.lang.String,java.lang.Object> style) Draws the shape specified with the STYLE_SHAPE key in the given style.
org.w3c.dom.Element	drawText(java.lang.String text, int x, int y, int w, int h, java.util.Map<java.lang.String,java.lang.Object> style) Draws the specified text either using drawHtmlString or using drawString.
org.w3c.dom.Document	getDocument() Returns a reference to the document that represents the canvas.
void	setDocument(org.w3c.dom.Document document)

Methods inherited from class com.mxgraph.canvas.mxBasicCanvas

flushImageCache, getImageBasePath, getImageForStyle, getScale, getTranslate, isDrawLabels, loadImage, setDrawLabels, setImageBasePath, setScale, setTranslate

Methods inherited from class java.lang.Object

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

Field Detail

document

protected org.w3c.dom.Document document

Holds the HTML document that represents the canvas.

Constructor Detail

mxHtmlCanvas

public mxHtmlCanvas()

Constructs a new HTML canvas for the specified dimension and scale.

mxHtmlCanvas

public mxHtmlCanvas(org.w3c.dom.Document document)

Constructs a new HTML canvas for the specified bounds, scale and background color.

Method Detail

appendHtmlElement

public void appendHtmlElement(org.w3c.dom.Element node)

setDocument

public void setDocument(org.w3c.dom.Document document)

getDocument

public org.w3c.dom.Document getDocument()

Returns a reference to the document that represents the canvas.

Returns:

Returns the document.

drawCell

public java.lang.Object drawCell(mxCellState state)

Description copied from interface: mxICanvas

Draws the given cell.

Parameters:

state - State of the cell to be painted.

Returns:

Object that represents the cell.

drawLabel

public java.lang.Object drawLabel(java.lang.String label,
                                  mxCellState state,
                                  boolean html)

Description copied from interface: mxICanvas

Draws the given label.

Parameters:

label - String that represents the label.

state - State of the cell whose label is to be painted.

html - Specifies if the label contains HTML markup.

Returns:

Object that represents the label.

drawShape

public org.w3c.dom.Element drawShape(int x,
                                     int y,
                                     int w,
                                     int h,
                                     java.util.Map<java.lang.String,java.lang.Object> style)

Draws the shape specified with the STYLE_SHAPE key in the given style.

Parameters:

x - X-coordinate of the shape.

y - Y-coordinate of the shape.

w - Width of the shape.

h - Height of the shape.

style - Style of the the shape.

drawLine

public void drawLine(java.util.List<mxPoint> pts,
                     java.util.Map<java.lang.String,java.lang.Object> style)

Draws the given lines as segments between all points of the given list of mxPoints.

Parameters:

pts - List of points that define the line.

style - Style to be used for painting the line.

drawSegment

protected void drawSegment(int x0,
                           int y0,
                           int x1,
                           int y1,
                           java.lang.String strokeColor,
                           int strokeWidth)

Draws the specified segment of a line.

Parameters:

x0 - X-coordinate of the start point.

y0 - Y-coordinate of the start point.

x1 - X-coordinate of the end point.

y1 - Y-coordinate of the end point.

strokeColor - Color of the stroke to be painted.

strokeWidth - Width of the stroke to be painted.

drawText

public org.w3c.dom.Element drawText(java.lang.String text,
                                    int x,
                                    int y,
                                    int w,
                                    int h,
                                    java.util.Map<java.lang.String,java.lang.Object> style)

Draws the specified text either using drawHtmlString or using drawString.

Parameters:

text - Text to be painted.

x - X-coordinate of the text.

y - Y-coordinate of the text.

w - Width of the text.

h - Height of the text.

style - Style to be used for painting the text.