Package net.i2p.rrd4j

Class SimpleSVGMaker

java.lang.Object

net.i2p.rrd4j.SimpleSVGMaker

public class SimpleSVGMaker
extends Object

Create full or partial SVG images, without dependencies. Does not extend or use Graphics2D or ImageWriter. Each drawn element can be passed an optional CSS ID and/or classes, for easy styling and manipulation via CSS or js. All parameters are set as attributes, not as inline style, so a separate CSS style may easily override them. If inline style is desired, add it with the KEY_ELEMENT_ATTMAP hint. Unlike in Graphics2D, the border and fill for an object may be drawn in the same call, with separate colors. There is no state here other than the StringBuffer; there is no concept of current Color or Stroke or Font; caller must keep track of current Colors, Stroke, and Font, and pass them in on every draw() call, and/or overridden via CSS. License: Apache 2.0 (same as rrd4j)

Since:

0.9.64

Author:

zzz

Constructor Summary

Constructors

Constructor	Description
SimpleSVGMaker(StringBuilder buf)

Method Summary

Modifier and Type	Method	Description
String	defineClipPath(Rectangle clip)	Define clip path
void	drawCircle(int x, int y, int radius, Color border, Color fill, BasicStroke stroke, String clipid, Map<Object,Object> hints)	Draw circle centered on x,y with a radius given
void	drawLine(int x1, int y1, int x2, int y2, Color color, BasicStroke stroke, String clipid, Map<Object,Object> hints)	Draw line
void	drawPolyline(int[] x, int[] y, int sz, Color color, BasicStroke stroke, String clipid, Map<Object,Object> hints)	Draw polyline
void	drawRect(int x, int y, int width, int height, Color border, Color fill, BasicStroke stroke, String clipid, Map<Object,Object> hints)	Draw rect
void	drawSquare(int x, int y, int sz, Color border, Color fill, BasicStroke stroke, String clipid, Map<Object,Object> hints)	Draw square centered on x,y with a width/height given
void	drawText(String text, int x, int y, Color color, Font font, String clipid, Map<Object,Object> hints)	Draw text
void	endGroup()	End group
void	endSVG()	End svg tag
void	fillPolygon(int[] x, int[] y, int sz, Color color, String clipid, Map<Object,Object> hints)	Fill polygon
void	startGroup(String id, String clz, String att, String val)	Start group
void	startSVG(int width, int height, Color bgcolor, String id, String clz)	Start svg tag

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleSVGMaker

public SimpleSVGMaker(StringBuilder buf)

Method Details

startSVG

public void startSVG(int width,
 int height,
 Color bgcolor,
 String id,
 String clz)

Start svg tag

Parameters:

bgcolor - null for none

id - CSS id or null for none

clz - CSS class or null for none

endSVG

public void endSVG()

End svg tag

startGroup

public void startGroup(String id,
 String clz,
 String att,
 String val)

Start group

Parameters:

id - CSS id or null for none

clz - CSS class or null for none

att - an attribute to add att=val, e.g. "transform", or null for none

val - an attribute to add att=val, or null for none

endGroup

public void endGroup()

End group

defineClipPath

public String defineClipPath(Rectangle clip)

Define clip path

Returns:

a unique ID to pass to draw() calls

drawCircle

public void drawCircle(int x,
 int y,
 int radius,
 Color border,
 Color fill,
 BasicStroke stroke,
 String clipid,
 Map<Object,Object> hints)

Draw circle centered on x,y with a radius given

Parameters:

border - null for none

fill - null for none

clipid - as returned from defineClipID() or null for none

hints - non-null

drawSquare

public void drawSquare(int x,
 int y,
 int sz,
 Color border,
 Color fill,
 BasicStroke stroke,
 String clipid,
 Map<Object,Object> hints)

Draw square centered on x,y with a width/height given

Parameters:

border - null for none

fill - null for none

clipid - as returned from defineClipID() or null for none

hints - non-null

drawRect

public void drawRect(int x,
 int y,
 int width,
 int height,
 Color border,
 Color fill,
 BasicStroke stroke,
 String clipid,
 Map<Object,Object> hints)

Draw rect

Parameters:

border - null for none

fill - null for none

hints - non-null

drawLine

public void drawLine(int x1,
 int y1,
 int x2,
 int y2,
 Color color,
 BasicStroke stroke,
 String clipid,
 Map<Object,Object> hints)

Draw line

Parameters:

color - null to let CSS do it

clipid - as returned from defineClipID() or null for none

hints - non-null

drawPolyline

public void drawPolyline(int[] x,
 int[] y,
 int sz,
 Color color,
 BasicStroke stroke,
 String clipid,
 Map<Object,Object> hints)

Draw polyline

Parameters:

color - null to let CSS do it

clipid - as returned from defineClipID() or null for none

hints - non-null

fillPolygon

public void fillPolygon(int[] x,
 int[] y,
 int sz,
 Color color,
 String clipid,
 Map<Object,Object> hints)

Fill polygon

Parameters:

color - null to let CSS do it

clipid - as returned from defineClipID() or null for none

hints - non-null

drawText

public void drawText(String text,
 int x,
 int y,
 Color color,
 Font font,
 String clipid,
 Map<Object,Object> hints)

Draw text

Parameters:

color - null to let CSS do it

font - null to let CSS do it

clipid - as returned from defineClipID() or null for none

hints - non-null