package org.apache.fop.layoutmgr;
import java.util.LinkedList;
-import java.util.List;
import java.util.ListIterator;
import java.awt.Point;
import java.awt.geom.Rectangle2D;
import org.apache.fop.area.CTM;
import org.apache.fop.datatypes.FODimension;
import org.apache.fop.datatypes.Length;
-import org.apache.fop.datatypes.PercentBase;
import org.apache.fop.traits.MinOptMax;
import org.apache.fop.traits.SpaceVal;
private BlockViewport viewportBlockArea;
private Block referenceArea;
- private List childBreaks = new java.util.ArrayList();
-
private CommonAbsolutePosition abProps;
private FODimension relDims;
private CTM absoluteCTM;
private Length height;
private int vpContentIPD;
private int vpContentBPD;
- private int usedBPD;
// When viewport should grow with the content.
private boolean autoHeight = true;
-
- private int referenceIPD;
/* holds the (one-time use) fo:block space-before
and -after properties. Large fo:blocks are split
//TODO space-before|after: handle space-resolution rules
private MinOptMax foBlockSpaceBefore;
private MinOptMax foBlockSpaceAfter;
-
- private boolean bBreakBeforeServed = false;
- private boolean bSpaceBeforeServed = false;
-
- /*LF*/
- /** Only used to store the original list when createUnitElements is called */
- //TODO Maybe pull up as protected member if also used in this class (JM)
- private LinkedList storedList = null;
-
/**
* Create a new block container layout manager.
return (abProps.absolutePosition == EN_FIXED);
}
- /**
- * @see org.apache.fop.layoutmgr.LayoutManager#getNextKnuthElements(org.apache.fop.layoutmgr.LayoutContext, int)
- */
+ /** @see org.apache.fop.layoutmgr.LayoutManager */
public LinkedList getNextKnuthElements(LayoutContext context, int alignment) {
if (isAbsoluteOrFixed()) {
return getNextKnuthElementsAbsolute(context, alignment);
boolean contentOverflows = breaker.isOverflow();
LinkedList returnList = new LinkedList();
if (!breaker.isEmpty()) {
- usedBPD = relDims.bpd - breaker.getDifferenceOfFirstPart();
-
Position bcPosition = new BlockContainerPosition(this, breaker);
returnList.add(new KnuthBox(0, bcPosition, false));
// pos was created by this BCLM and was inside an element
// representing space before or after
// this means the space was not discarded
- if (positionList.size() == 0) {
+ if (positionList.size() == 0 && bcpos == null) {
// pos was in the element representing space-before
bSpaceBefore = true;
/* LF *///System.out.println(" space-before");
}
if (bcpos == null) {
-
- if (bpUnit == 0) {
- // the Positions in positionList were inside the elements
- // created by the LineLM
- childPosIter = new StackingIter(positionList.listIterator());
- } else {
- // the Positions in positionList were inside the elements
- // created by the BCLM in the createUnitElements() method
- //if (((Position) positionList.getLast()) instanceof
- // LeafPosition) {
- // // the last item inside positionList is a LeafPosition
- // // (a LineBreakPosition, more precisely); this means that
- // // the whole paragraph is on the same page
- // System.out.println("paragrafo intero");
- // childPosIter = new KnuthPossPosIter(storedList, 0,
- // storedList.size());
- //} else {
- // // the last item inside positionList is a Position;
- // // this means that the paragraph has been split
- // // between consecutive pages
- LinkedList splitList = new LinkedList();
- int splitLength = 0;
- int iFirst = ((MappingPosition) positionList.getFirst()).getFirstIndex();
- int iLast = ((MappingPosition) positionList.getLast()).getLastIndex();
- // copy from storedList to splitList all the elements from
- // iFirst to iLast
- ListIterator storedListIterator = storedList.listIterator(iFirst);
- while (storedListIterator.nextIndex() <= iLast) {
- KnuthElement element = (KnuthElement) storedListIterator
- .next();
- // some elements in storedList (i.e. penalty items) were created
- // by this BlockLM, and must be ignored
- if (element.getLayoutManager() != this) {
- splitList.add(element);
- splitLength += element.getW();
- lastLM = element.getLayoutManager();
+ if (bpUnit == 0) {
+ // the Positions in positionList were inside the elements
+ // created by the LineLM
+ childPosIter = new StackingIter(positionList.listIterator());
+ } else {
+ // the Positions in positionList were inside the elements
+ // created by the BCLM in the createUnitElements() method
+ //if (((Position) positionList.getLast()) instanceof
+ // LeafPosition) {
+ // // the last item inside positionList is a LeafPosition
+ // // (a LineBreakPosition, more precisely); this means that
+ // // the whole paragraph is on the same page
+ // System.out.println("paragrafo intero");
+ // childPosIter = new KnuthPossPosIter(storedList, 0,
+ // storedList.size());
+ //} else {
+ // // the last item inside positionList is a Position;
+ // // this means that the paragraph has been split
+ // // between consecutive pages
+ LinkedList splitList = new LinkedList();
+ int splitLength = 0;
+ int iFirst = ((MappingPosition) positionList.getFirst()).getFirstIndex();
+ int iLast = ((MappingPosition) positionList.getLast()).getLastIndex();
+ // copy from storedList to splitList all the elements from
+ // iFirst to iLast
+ ListIterator storedListIterator = storedList.listIterator(iFirst);
+ while (storedListIterator.nextIndex() <= iLast) {
+ KnuthElement element = (KnuthElement) storedListIterator
+ .next();
+ // some elements in storedList (i.e. penalty items) were created
+ // by this BlockLM, and must be ignored
+ if (element.getLayoutManager() != this) {
+ splitList.add(element);
+ splitLength += element.getW();
+ lastLM = element.getLayoutManager();
+ }
+ }
+ //System.out.println("addAreas riferito a storedList da " +
+ // iFirst + " a " + iLast);
+ //System.out.println("splitLength= " + splitLength
+ // + " (" + neededUnits(splitLength) + " unita') "
+ // + (neededUnits(splitLength) * bpUnit - splitLength) + " spazi");
+ // add space before and / or after the paragraph
+ // to reach a multiple of bpUnit
+ if (bSpaceBefore && bSpaceAfter) {
+ foBlockSpaceBefore = new SpaceVal(getBlockContainerFO()
+ .getCommonMarginBlock().spaceBefore).getSpace();
+ foBlockSpaceAfter = new SpaceVal(getBlockContainerFO()
+ .getCommonMarginBlock().spaceAfter).getSpace();
+ adjustedSpaceBefore = (neededUnits(splitLength
+ + foBlockSpaceBefore.min
+ + foBlockSpaceAfter.min)
+ * bpUnit - splitLength) / 2;
+ adjustedSpaceAfter = neededUnits(splitLength
+ + foBlockSpaceBefore.min
+ + foBlockSpaceAfter.min)
+ * bpUnit - splitLength - adjustedSpaceBefore;
+ } else if (bSpaceBefore) {
+ adjustedSpaceBefore = neededUnits(splitLength
+ + foBlockSpaceBefore.min)
+ * bpUnit - splitLength;
+ } else {
+ adjustedSpaceAfter = neededUnits(splitLength
+ + foBlockSpaceAfter.min)
+ * bpUnit - splitLength;
}
+ //System.out.println("spazio prima = " + adjustedSpaceBefore
+ // + " spazio dopo = " + adjustedSpaceAfter + " totale = " +
+ // (adjustedSpaceBefore + adjustedSpaceAfter + splitLength));
+ childPosIter = new KnuthPossPosIter(splitList, 0, splitList
+ .size());
+ //}
}
- //System.out.println("addAreas riferito a storedList da " +
- // iFirst + " a " + iLast);
- //System.out.println("splitLength= " + splitLength
- // + " (" + neededUnits(splitLength) + " unita') "
- // + (neededUnits(splitLength) * bpUnit - splitLength) + " spazi");
- // add space before and / or after the paragraph
- // to reach a multiple of bpUnit
- if (bSpaceBefore && bSpaceAfter) {
- foBlockSpaceBefore = new SpaceVal(getBlockContainerFO()
- .getCommonMarginBlock().spaceBefore).getSpace();
- foBlockSpaceAfter = new SpaceVal(getBlockContainerFO()
- .getCommonMarginBlock().spaceAfter).getSpace();
- adjustedSpaceBefore = (neededUnits(splitLength
- + foBlockSpaceBefore.min
- + foBlockSpaceAfter.min)
- * bpUnit - splitLength) / 2;
- adjustedSpaceAfter = neededUnits(splitLength
- + foBlockSpaceBefore.min
- + foBlockSpaceAfter.min)
- * bpUnit - splitLength - adjustedSpaceBefore;
- } else if (bSpaceBefore) {
- adjustedSpaceBefore = neededUnits(splitLength
- + foBlockSpaceBefore.min)
- * bpUnit - splitLength;
- } else {
- adjustedSpaceAfter = neededUnits(splitLength
- + foBlockSpaceAfter.min)
- * bpUnit - splitLength;
+
+ // if adjusted space before
+ if (bSpaceBefore) {
+ addBlockSpacing(0, new MinOptMax(adjustedSpaceBefore));
+ }
+
+ while ((childLM = childPosIter.getNextChildLM()) != null) {
+ // set last area flag
+ lc.setFlags(LayoutContext.LAST_AREA,
+ (layoutContext.isLastArea() && childLM == lastLM));
+ /*LF*/lc.setStackLimit(layoutContext.getStackLimit());
+ // Add the line areas to Area
+ childLM.addAreas(childPosIter, lc);
}
- //System.out.println("spazio prima = " + adjustedSpaceBefore
- // + " spazio dopo = " + adjustedSpaceAfter + " totale = " +
- // (adjustedSpaceBefore + adjustedSpaceAfter + splitLength));
- childPosIter = new KnuthPossPosIter(splitList, 0, splitList
- .size());
- //}
- }
-
- // if adjusted space before
- if (bSpaceBefore) {
- addBlockSpacing(0, new MinOptMax(adjustedSpaceBefore));
- }
-
- while ((childLM = childPosIter.getNextChildLM()) != null) {
- // set last area flag
- lc.setFlags(LayoutContext.LAST_AREA,
- (layoutContext.isLastArea() && childLM == lastLM));
- /*LF*/lc.setStackLimit(layoutContext.getStackLimit());
- // Add the line areas to Area
- childLM.addAreas(childPosIter, lc);
- }
} else {
// if adjusted space before
if (bSpaceBefore) {
viewportBlockArea.setCTM(absoluteCTM);
viewportBlockArea.setClip(clip);
+ /*
if (getSpaceBefore() != 0) {
viewportBlockArea.addTrait(Trait.SPACE_BEFORE, new Integer(getSpaceBefore()));
}
if (foBlockSpaceAfter.opt != 0) {
viewportBlockArea.addTrait(Trait.SPACE_AFTER, new Integer(foBlockSpaceAfter.opt));
- }
+ }*/
if (abProps.absolutePosition == EN_ABSOLUTE
|| abProps.absolutePosition == EN_FIXED) {
protected void flush() {
viewportBlockArea.addBlock(referenceArea, autoHeight);
- //Handle display-align now that the used BPD can be determined
- usedBPD = referenceArea.getAllocBPD();
- /* done by the breaker now by inserting additional boxes
- if (!autoHeight & (usedBPD > 0)) {
- if (getBlockContainerFO().getDisplayAlign() == EN_CENTER) {
- viewportBlockArea.setCTM(viewportBlockArea.getCTM().multiply(
- new CTM().translate(0, (relDims.bpd - usedBPD) / 2)));
- } else if (getBlockContainerFO().getDisplayAlign() == EN_AFTER) {
- viewportBlockArea.setCTM(viewportBlockArea.getCTM().multiply(
- new CTM().translate(0, (relDims.bpd - usedBPD))));
- }
- }*/
-
// Fake a 0 height for absolute positioned blocks.
int saveBPD = viewportBlockArea.getBPD();
if (viewportBlockArea.getPositioning() == Block.ABSOLUTE) {
projects / xmlgraphics-fop.git / commitdiff