Package com.openhtmltopdf.layout

Class BoxCollector

java.lang.Object

com.openhtmltopdf.layout.BoxCollector

public class BoxCollector
extends Object

A class to collect boxes which intersect a given clip region. If available, aggregate bounds information will be used. Block and inline content are added to separate lists as they are painted in separate render phases. This class flattens the nested structure of boxes in a depth first fashion. Range lists are created for overflow:hidden boxes to specify the first block where a clip comes into affect and the end block where the clip is undone. For example, if a hidden box is first in a layer and contains 10 child boxes the range list will contain an entry for 0, 11, specifying the start and end of the clip.

Constructor Summary

Constructors

Constructor	Description
BoxCollector()

Method Summary

Modifier and Type	Method	Description
void	collect(CssContext c, Shape clip, Layer layer, Box container, List<Box> blockContent, List<Box> inlineContent, BoxRangeLists rangeLists)
void	collect(CssContext c, Shape clip, Layer layer, List<Box> blockContent, List<Box> inlineContent, BoxRangeLists rangeLists)
private void	collectInlineLayer(CssContext c, Shape clip, Layer layer, List<Box> blockContent, List<Box> inlineContent, BoxRangeLists rangeLists)
private boolean	intersectsAggregateBounds(Shape clip, Box box)
boolean	intersectsAny(CssContext c, Shape clip, Box master)
private boolean	intersectsAny(CssContext c, Shape clip, Box master, Box container)
private void	saveRangeData(CssContext c, Box container, List<Box> blockContent, List<Box> inlineContent, BoxRangeLists rangeLists, boolean isBlock, int blockStart, int inlineStart, int blockRangeStart, int inlineRangeStart)

Methods inherited from class java.lang.Object

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

Constructor Details

BoxCollector

public BoxCollector()

Method Details

collect

public void collect(CssContext c,
 Shape clip,
 Layer layer,
 List<Box> blockContent,
 List<Box> inlineContent,
 BoxRangeLists rangeLists)

intersectsAny

public boolean intersectsAny(CssContext c,
 Shape clip,
 Box master)

collectInlineLayer

private void collectInlineLayer(CssContext c,
 Shape clip,
 Layer layer,
 List<Box> blockContent,
 List<Box> inlineContent,
 BoxRangeLists rangeLists)

intersectsAggregateBounds

private boolean intersectsAggregateBounds(Shape clip,
 Box box)

collect

public void collect(CssContext c,
 Shape clip,
 Layer layer,
 Box container,
 List<Box> blockContent,
 List<Box> inlineContent,
 BoxRangeLists rangeLists)

saveRangeData

private void saveRangeData(CssContext c,
 Box container,
 List<Box> blockContent,
 List<Box> inlineContent,
 BoxRangeLists rangeLists,
 boolean isBlock,
 int blockStart,
 int inlineStart,
 int blockRangeStart,
 int inlineRangeStart)

intersectsAny

private boolean intersectsAny(CssContext c,
 Shape clip,
 Box master,
 Box container)