/** Used to reduce instantiation of MinOptMax with zero length. Do not modify! */
private static final MinOptMax ZERO_MINOPTMAX = new MinOptMax(0);
-
+
private FOText foText;
private char[] textArray;
/**
/** 1/2 of word-spacing value */
private SpaceVal halfWS;
/** 1/2 of letter-spacing value */
- private SpaceVal halfLS;
+ private SpaceVal halfLS;
private boolean hasChanged = false;
private int returnedIndex = 0;
private int lineStartBAP = 0;
private int lineEndBAP = 0;
-
+
private boolean keepTogether;
- private final Position auxiliaryPosition;
+ private final Position auxiliaryPosition = new LeafPosition(this, -1);
/**
* Create a Text layout manager.
public TextLayoutManager(FOText node) {
super();
foText = node;
-
+
textArray = new char[node.endIndex - node.startIndex];
System.arraycopy(node.ca, node.startIndex, textArray, 0,
node.endIndex - node.startIndex);
letterAdjustArray = new MinOptMax[textArray.length + 1];
vecAreaInfo = new java.util.ArrayList();
-
- auxiliaryPosition = new LeafPosition(this, -1);
}
private KnuthPenalty makeZeroWidthPenalty(int penaltyValue) {
FontInfo fi = foText.getFOEventHandler().getFontInfo();
FontTriplet[] fontkeys = foText.getCommonFont().getFontState(fi);
font = fi.getFontInstance(fontkeys[0], foText.getCommonFont().fontSize.getValue(this));
-
+
// With CID fonts, space isn't neccesary currentFontState.width(32)
spaceCharIPD = font.getCharWidth(' ');
// Use hyphenationChar property
hyphIPD = foText.getCommonHyphenation().getHyphIPD(font);
-
+
SpaceVal ls = SpaceVal.makeLetterSpacing(foText.getLetterSpacing());
halfLS = new SpaceVal(MinOptMax.multiply(ls.getSpace(), 0.5),
ls.isConditional(), ls.isForcing(), ls.getPrecedence());
-
+
ws = SpaceVal.makeWordSpacing(foText.getWordSpacing(), ls, font);
// Make half-space: <space> on either side of a word-space)
halfWS = new SpaceVal(MinOptMax.multiply(ws.getSpace(), 0.5),
// in the SpaceVal.makeWordSpacing() method
letterSpaceIPD = ls.getSpace();
wordSpaceIPD = MinOptMax.add(new MinOptMax(spaceCharIPD), ws.getSpace());
-
+
keepTogether = foText.getKeepTogether().getWithinLine().getEnum() == Constants.EN_ALWAYS;
}
realWidth.add(MinOptMax.multiply(letterSpaceIPD, -1));
letterSpaceCount--;
}
-
+
for (int i = ai.startIndex; i < ai.breakIndex; i++) {
- MinOptMax ladj = letterAdjustArray[i + 1];
+ MinOptMax ladj = letterAdjustArray[i + 1];
if (ladj != null && ladj.isElastic()) {
letterSpaceCount++;
}
difference = (int) ((double) (realWidth.opt - realWidth.min)
* ipdAdjust);
}
-
+
// set letter space adjustment
if (ipdAdjust > 0.0) {
letterSpaceDim
totalAdjust += (letterSpaceDim - letterSpaceIPD.opt) * letterSpaceCount;
// set word space adjustment
- //
+ //
if (wordSpaceCount > 0) {
wordSpaceDim += (difference - totalAdjust) / wordSpaceCount;
} else {
// the last character of a word and to space characters: in order
// to avoid this, we must subtract the letter space width twice;
// the renderer will compute the space width as:
- // space width =
+ // space width =
// = "normal" space width + letterSpaceAdjust + wordSpaceAdjust
// = spaceCharIPD + letterSpaceAdjust +
// + (wordSpaceDim - spaceCharIPD - 2 * letterSpaceAdjust)
* @param context the layout context
* @param spaceDiff unused
* @param firstIndex the index of the first AreaInfo used for the TextArea
- * @param lastIndex the index of the last AreaInfo used for the TextArea
+ * @param lastIndex the index of the last AreaInfo used for the TextArea
* @param isLastArea is this TextArea the last in a line?
* @return the new text area
*/
// here ends a new word
// add a word to the TextArea
if (isLastArea
- && i == lastIndex
+ && i == lastIndex
&& areaInfo.isHyphenated) {
len++;
}
}
// String wordChars = new String(textArray, wordStartIndex, len);
if (isLastArea
- && i == lastIndex
+ && i == lastIndex
&& areaInfo.isHyphenated) {
// add the hyphenation character
wordChars.append(foText.getCommonHyphenation().getHyphChar(font));
}
TraitSetter.addFontTraits(textArea, font);
textArea.addTrait(Trait.COLOR, foText.getColor());
-
+
TraitSetter.addTextDecoration(textArea, foText.getTextDecoration());
-
+
return textArea;
}
-
+
private void addToLetterAdjust(int index, int width) {
if (letterAdjustArray[index] == null) {
letterAdjustArray[index] = new MinOptMax(width);
|| CharUtilities.isNonBreakableSpace(ch)
|| CharUtilities.isFixedWidthSpace(ch);
}
-
+
/** {@inheritDoc} */
public LinkedList getNextKnuthElements(LayoutContext context, int alignment) {
lineStartBAP = context.getLineStartBorderAndPaddingWidth();
} else if (prevAi != null && !prevAi.isSpace && prevAi.breakIndex > 0) {
char previous = textArray[prevAi.breakIndex - 1];
kern = font.getKernValue(previous, c) * font.getFontSize() / 1000;
- }
+ }
if (kern != 0) {
//log.info("Kerning between " + previous + " and " + c + ": " + kern);
addToLetterAdjust(i, kern);
wordIPD.add(kern);
- }
+ }
}
}
if (kerning && breakOpportunity && !isSpace(ch) && lastIndex > 0 && textArray[lastIndex] == CharUtilities.SOFT_HYPHEN) {
ai = new AreaInfo(thisStart, nextStart,
(short) (nextStart - thisStart), (short) 0,
MinOptMax.multiply(wordSpaceIPD, nextStart - thisStart),
- false, true, breakOpportunity);
+ false, true, breakOpportunity);
vecAreaInfo.add(ai);
prevAi = ai;
returnList.add(sequence);
}
}
-
- if ((ch == CharUtilities.SPACE
- && foText.getWhitespaceTreatment() == Constants.EN_PRESERVE)
+
+ if ((ch == CharUtilities.SPACE
+ && foText.getWhitespaceTreatment() == Constants.EN_PRESERVE)
|| ch == CharUtilities.NBSPACE) {
// preserved space or non-breaking space:
// create the AreaInfo object
MinOptMax ipd = new MinOptMax(font.getCharWidth(ch));
ai = new AreaInfo(nextStart, (short) (nextStart + 1),
(short) 0, (short) 0,
- ipd, false, true, breakOpportunity);
+ ipd, false, true, breakOpportunity);
thisStart = (short) (nextStart + 1);
} else if (ch == NEWLINE) {
// linefeed; this can happen when linefeed-treatment="preserve"
inWhitespace = ch == CharUtilities.SPACE && foText.getWhitespaceTreatment() != Constants.EN_PRESERVE;
nextStart++;
} // end of while
-
+
// Process any last elements
if (inWord) {
int lastIndex = nextStart;
} else if (prevAi != null && !prevAi.isSpace) {
char previous = textArray[prevAi.breakIndex - 1];
kern = font.getKernValue(previous, c) * font.getFontSize() / 1000;
- }
+ }
if (kern != 0) {
//log.info("Kerning between " + previous + " and " + c + ": " + kern);
addToLetterAdjust(i, kern);
wordIPD.add(kern);
- }
+ }
}
}
int iLetterSpaces = wordLength - 1;
ai = new AreaInfo(thisStart, (short) (nextStart),
(short) (nextStart - thisStart), (short) 0,
MinOptMax.multiply(wordSpaceIPD, nextStart - thisStart),
- false, true, true);
+ false, true, true);
vecAreaInfo.add(ai);
// create the elements
}
startIndex = stopIndex;
}
- if (!hasChanged && !nothingChanged) {
- hasChanged = true;
- }
+ hasChanged = !nothingChanged;
}
/** {@inheritDoc} */
public boolean applyChanges(List oldList) {
setFinished(false);
- if (changeList != null) {
+ if (changeList != null && !changeList.isEmpty()) {
int areaInfosAdded = 0;
int areaInfosRemoved = 0;
- int oldIndex = -1;
- PendingChange currChange = null;
+ int oldIndex = -1, changeIndex;
+ PendingChange currChange;
ListIterator changeListIterator = changeList.listIterator();
while (changeListIterator.hasNext()) {
currChange = (PendingChange) changeListIterator.next();
areaInfosRemoved++;
areaInfosAdded++;
oldIndex = currChange.index;
- vecAreaInfo.remove(currChange.index + areaInfosAdded - areaInfosRemoved);
- vecAreaInfo.add(currChange.index + areaInfosAdded - areaInfosRemoved,
- currChange.ai);
+ changeIndex = currChange.index + areaInfosAdded - areaInfosRemoved;
+ vecAreaInfo.remove(changeIndex);
} else {
areaInfosAdded++;
- vecAreaInfo.add(currChange.index + areaInfosAdded - areaInfosRemoved,
- currChange.ai);
+ changeIndex = currChange.index + areaInfosAdded - areaInfosRemoved;
}
+ vecAreaInfo.add(changeIndex, currChange.ai);
}
changeList.clear();
}
int leafValue = ((LeafPosition) pos).getLeafPos();
if (leafValue != -1) {
AreaInfo ai = (AreaInfo) vecAreaInfo.get(leafValue);
- sbChars.append(new String(textArray, ai.startIndex,
- ai.breakIndex - ai.startIndex));
+ sbChars.append(textArray, ai.startIndex, ai.breakIndex - ai.startIndex);
}
}
switch (alignment) {
case EN_CENTER:
// centered text:
- // if the second element is chosen as a line break these elements
+ // if the second element is chosen as a line break these elements
// add a constant amount of stretch at the end of a line and at the
// beginning of the next one, otherwise they don't add any stretch
baseList.add(new KnuthGlue(lineEndBAP,
case EN_START: // fall through
case EN_END:
// left- or right-aligned text:
- // if the second element is chosen as a line break these elements
+ // if the second element is chosen as a line break these elements
// add a constant amount of stretch at the end of a line, otherwise
// they don't add any stretch
baseList.add(new KnuthGlue(lineEndBAP,
baseList.add(makeZeroWidthPenalty(KnuthPenalty.INFINITE));
baseList.add(new KnuthGlue(lineStartBAP + ai.areaIPD.opt, 0, 0,
mainPosition, false));
- }
+ }
} else {
// a (possible block) of breaking spaces
switch (alignment) {
case EN_CENTER:
// centered text:
- // if the second element is chosen as a line break these elements
+ // if the second element is chosen as a line break these elements
// add a constant amount of stretch at the end of a line and at the
// beginning of the next one, otherwise they don't add any stretch
baseList.add(new KnuthGlue(lineEndBAP,
case EN_START: // fall through
case EN_END:
// left- or right-aligned text:
- // if the second element is chosen as a line break these elements
+ // if the second element is chosen as a line break these elements
// add a constant amount of stretch at the end of a line, otherwise
// they don't add any stretch
if (lineStartBAP != 0 || lineEndBAP != 0) {
}
}
}
- }
+ }
}
private void addElementsForAWordFragment(List baseList,
notifyPos(mainPosition), false));
} else {
// adjustable letter spacing
- int unsuppressibleLetterSpaces
+ int unsuppressibleLetterSpaces
= suppressibleLetterSpace ? ai.letterSpaceCount - 1 : ai.letterSpaceCount;
baseList.add
(new KnuthInlineBox(ai.areaIPD.opt
auxiliaryPosition, true));
baseList.add(makeAuxiliaryZeroWidthBox());
}
-
+
// extra-elements if the word fragment is the end of a syllable,
// or it ends with a character that can be used as a line break
if (ai.isHyphenated) {
widthIfNoBreakOccurs = letterAdjustArray[ai.breakIndex];
}
//if (ai.breakIndex)
-
+
// the word fragment ends at the end of a syllable:
// if a break occurs the content width increases,
// otherwise nothing happens
baseList.add(new KnuthGlue(lineStartBAP, 3 * LineLayoutManager.DEFAULT_SPACE_WIDTH, 0,
auxiliaryPosition, true));
break;
-
+
case EN_START : // fall through
case EN_END :
// left- or right-aligned text:
auxiliaryPosition, false));
}
break;
-
+
default:
// justified text, or last line justified:
// just a flagged penalty
}
}
}
-
- }
+ }
+
}
projects / xmlgraphics-fop.git / commitdiff