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Posted to fop-commits@xmlgraphics.apache.org by je...@apache.org on 2005/06/29 14:57:53 UTC
svn commit: r202363 -
/xmlgraphics/fop/trunk/src/java/org/apache/fop/layoutmgr/BreakingAlgorithm.java
Author: jeremias
Date: Wed Jun 29 05:57:51 2005
New Revision: 202363
URL: http://svn.apache.org/viewcvs?rev=202363&view=rev
Log:
Enable starting the break process at an arbitrary position inside an element list.
Modified:
xmlgraphics/fop/trunk/src/java/org/apache/fop/layoutmgr/BreakingAlgorithm.java
Modified: xmlgraphics/fop/trunk/src/java/org/apache/fop/layoutmgr/BreakingAlgorithm.java
URL: http://svn.apache.org/viewcvs/xmlgraphics/fop/trunk/src/java/org/apache/fop/layoutmgr/BreakingAlgorithm.java?rev=202363&r1=202362&r2=202363&view=diff
==============================================================================
--- xmlgraphics/fop/trunk/src/java/org/apache/fop/layoutmgr/BreakingAlgorithm.java (original)
+++ xmlgraphics/fop/trunk/src/java/org/apache/fop/layoutmgr/BreakingAlgorithm.java Wed Jun 29 05:57:51 2005
@@ -21,7 +21,6 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
-import org.apache.fop.layoutmgr.PageBreakingAlgorithm.KnuthPageNode;
import org.apache.fop.traits.MinOptMax;
/**
@@ -322,6 +321,13 @@
}
public int findBreakingPoints(KnuthSequence par, /*int lineWidth,*/
+ double threshold, boolean force,
+ boolean hyphenationAllowed) {
+ return findBreakingPoints(par, 0, threshold, force, hyphenationAllowed);
+ }
+
+ public int findBreakingPoints(KnuthSequence par, int startIndex,
+ /*int lineWidth,*/
double threshold, boolean force,
boolean hyphenationAllowed) {
this.par = par;
@@ -343,7 +349,7 @@
boolean previousIsBox = false;
// index of the first KnuthBox in the sequence
- int firstBoxIndex = 0;
+ int firstBoxIndex = startIndex;
while (alignment != org.apache.fop.fo.Constants.EN_CENTER
&& ! ((KnuthElement) par.get(firstBoxIndex)).isBox()) {
firstBoxIndex++;
@@ -354,13 +360,13 @@
addNode(0, createNode(firstBoxIndex, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, null));
if (log.isTraceEnabled()) {
- log.trace("Looping over " + par.size() + " box objects");
+ log.trace("Looping over " + (par.size() - startIndex) + " elements");
}
KnuthNode lastForced = getNode(0);
// main loop
- for (int i = 0; i < par.size(); i++) {
+ for (int i = startIndex; i < par.size(); i++) {
thisElement = getElement(i);
if (thisElement.isBox()) {
// a KnuthBox object is not a legal line break
@@ -658,13 +664,16 @@
}
/**
- * Figure out the fitness class of this line (tight, loose,
+ * <p>Figure out the fitness class of this line (tight, loose,
* very tight or very loose).
+ * </p>
+ * <p>See the section on "More Bells and Whistles" in Knuth's
+ * "Breaking Paragraphs Into Lines".
+ * </p>
* @param r
* @return
*/
private int computeFitness(double r) {
- int newFitnessClass;
if (r < -0.5) {
return 0;
} else if (r <= 0.5) {
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