org.apache.fop.render.txt
Class TXTState

java.lang.Object
  org.apache.fop.render.txt.TXTState

public class TXTState
extends java.lang.Object

This keeps information about the current state when writing to txt, i.e. manages coordinate transformation matrices for getting absolute coordinates.

Constructor Summary

TXTState()
Constructs a newly allocated TXTState object.

Method Summary

CTM	getResultCTM()
void	pop() Pop the coordinate transformation matrix from the stack and reevaluate resultCTM.
void	push(CTM ctm) Push the current coordinate transformation matrix onto the stack and reevaluate resultCTM.
CTM	refineCTM(CTM ctm) Modifies coordinate transformation matrix in such a way, so x-shift and y-shift will be transformed in text positions.
java.awt.Point	transformPoint(int x, int y) Transforms point (x, y) using resultCTM.
java.awt.Point	transformPoint(java.awt.Point p, CTM ctm) Transforms point using ctm.

Methods inherited from class java.lang.Object

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

Constructor Detail

TXTState

public TXTState()

Constructs a newly allocated TXTState object.

Method Detail

push

public void push(CTM ctm)

Push the current coordinate transformation matrix onto the stack and reevaluate resultCTM.

Parameters:

ctm - instance of CTM

pop

public void pop()

Pop the coordinate transformation matrix from the stack and reevaluate resultCTM.

refineCTM

public CTM refineCTM(CTM ctm)

Modifies coordinate transformation matrix in such a way, so x-shift and y-shift will be transformed in text positions.

Parameters:

ctm - CTM to modify

Returns:

instance of CTM

transformPoint

public java.awt.Point transformPoint(java.awt.Point p,
                                     CTM ctm)

Transforms point using ctm.

Parameters:

p - Point

ctm - CTM

Returns:

transformed Point

transformPoint

public java.awt.Point transformPoint(int x,
                                     int y)

Transforms point (x, y) using resultCTM.

Parameters:

x - x-coordinate

y - y-coordinate

Returns:

transformed Point

getResultCTM

public CTM getResultCTM()

Returns:

current result coordinate transformation matrix