Package eu.bandm.tools.d2d2.base

Class SyntaxGraph

java.lang.Object

eu.bandm.tools.d2d2.base.SyntaxGraph

public class SyntaxGraph
extends Object

Calculates and paints an extended regex as graphic. Usage is a little bit redundant, see Def2Doc(3):

 s = new SyntaxGraph(Graphics gr);
        SizeInfo = s.new Layouter().layout(def); 
        Image = create writeable image
        gri = image, get drawing Graphics
        s.setGraphic(gri);
 

 The symbols follow the "Wirth"-tradition, and additionally render the permutation
  "a & b" like "(a|b)", but with special triangular symbols as border lines.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	SyntaxGraph.Layouter	Every action method returns a SizeInfo object in the register SyntaxGraph.Layouter.sizeInfo.
static class	SyntaxGraph.LayoutParameters	Intended to be overwritten in anonymous subclasses.
class	SyntaxGraph.Painter
static class	SyntaxGraph.RectMap
static interface	SyntaxGraph.RefPainter	Plugged into a painter for customized representation of references.
class	SyntaxGraph.RefPainter_simple
static class	SyntaxGraph.SizeInfo	Represents the result of a layout sub-process as a TeX-like box model with three length values.

Field Summary

Fields

Modifier and Type	Field	Description
protected Graphics2D	graphics2D
protected Map<Expression,Integer>	inX	All positions (inX, outX, y, and more) of each expression are RELATIVE to the enclosing construct.
protected final SyntaxGraph.LayoutParameters	layoutParameters
protected final Font	mainFont
protected Map<Expression,Integer>	outX
protected final Font	smallFont
protected final Font	ttFont
protected Map<Expression,Integer>	y
protected Map<Expression,Integer>	y2	auxiliary ypos which cannot be easily calculated from contents, e.g.
protected Map<Expression,Integer>	yaux

Constructor Summary

Constructors

Constructor	Description
SyntaxGraph(Graphics2D graphics2D)
SyntaxGraph(Graphics2D graphics2D, SyntaxGraph.LayoutParameters layoutParameters)

Method Summary

Modifier and Type	Method	Description
protected int	calcTextWidth(String s, Font f)	FIXME 1) font/fontSize should be selectable, 2) different kinds of text/represented objects dto.
protected String	getTag(Reference ref)
void	setGraphics(Graphics2D graphics2D)

Methods inherited from class java.lang.Object

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

Field Details

layoutParameters

protected final SyntaxGraph.LayoutParameters layoutParameters

graphics2D

protected Graphics2D graphics2D

inX

protected Map<Expression,Integer> inX

All positions (inX, outX, y, and more) of each expression are RELATIVE to the enclosing construct. Therefore, when calculating, the graph of every expression starts at (0,0); when painting, every Expression before descending into a sub-expression opens a further AffineTransform, which maps the sub-expression's origin=(0,0) to the coordinates relative to its own origin=(0.0), where the sub-expression shall be positioned. These are the co-ordinates stored here.

outX

protected Map<Expression,Integer> outX

y

protected Map<Expression,Integer> y

y2

protected Map<Expression,Integer> y2

auxiliary ypos which cannot be easily calculated from contents, e.g. for plus/y pos of backline and subst/height of box

yaux

protected Map<Expression,Integer> yaux

mainFont

protected final Font mainFont

smallFont

protected final Font smallFont

ttFont

protected final Font ttFont

Constructor Details

SyntaxGraph

public SyntaxGraph(Graphics2D graphics2D,
 SyntaxGraph.LayoutParameters layoutParameters)

SyntaxGraph

public SyntaxGraph(Graphics2D graphics2D)

Method Details

setGraphics

public void setGraphics(Graphics2D graphics2D)

calcTextWidth

protected int calcTextWidth(String s,
 Font f)

FIXME 1) font/fontSize should be selectable,
2) different kinds of text/represented objects dto.

getTag

protected String getTag(Reference ref)