Class FloatManager

java.lang.Object

org.xhtmlrenderer.layout.FloatManager

public class FloatManager
extends Object

A class that manages all floated boxes in a given block formatting context. It is responsible for positioning floats and calculating clearance for non-floated (block) boxes.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final record	FloatManager.BoxDistance
private static final record	FloatManager.BoxOffset
(package private) static enum	FloatManager.Direction
static interface	FloatManager.FloatOperation

Field Summary

Fields

Modifier and Type	Field	Description
private final List<FloatManager.BoxOffset>	_leftFloats
private final Box	_master
private final List<FloatManager.BoxOffset>	_rightFloats

Constructor Summary

Constructors

Constructor	Description
FloatManager(Box master)

Method Summary

Modifier and Type	Method	Description
private void	alignToLastFloat(CssContext cssCtx, BlockFormattingContext bfc, BlockBox current, FloatManager.Direction direction)
private void	alignToLastOpposingFloat(CssContext cssCtx, BlockFormattingContext bfc, BlockBox current, FloatManager.Direction direction)
private void	applyLineHeightHack(CssContext cssCtx, Box line, Rectangle bounds)
private int	calcDelta(CssContext cssCtx, LineBox line, FloatManager.BoxDistance boxDistance)
void	calcFloatLocations()
private void	calcFloatLocations(List<FloatManager.BoxOffset> floats)
void	clear(CssContext cssCtx, BlockFormattingContext bfc, Box box)
private int	findLowestY(CssContext cssCtx, List<FloatManager.BoxOffset> floats)
private boolean	fitsInContainingBlock(BlockBox current)
void	floatBox(LayoutContext c, Layer layer, BlockFormattingContext bfc, BlockBox box)
int	getClearDelta(CssContext cssCtx, int bfcRelativeY)
private FloatManager.BoxDistance	getFloatDistance(CssContext cssCtx, BlockFormattingContext bfc, LineBox line, int containingBlockContentWidth, List<FloatManager.BoxOffset> floatsList, FloatManager.Direction direction)
private List<FloatManager.BoxOffset>	getFloats(FloatManager.Direction direction)
int	getLeftFloatDistance(CssContext cssCtx, BlockFormattingContext bfc, LineBox line, int containingBlockContentWidth)
Box	getMaster()
int	getNextLineBoxDelta(CssContext cssCtx, BlockFormattingContext bfc, LineBox line, int containingBlockContentWidth)
Point	getOffset(BlockBox floater)
private @Nullable Point	getOffset(BlockBox floater, List<FloatManager.BoxOffset> floats)
private List<FloatManager.BoxOffset>	getOpposingFloats(FloatManager.Direction direction)
int	getRightFloatDistance(CssContext cssCtx, BlockFormattingContext bfc, LineBox line, int containingBlockContentWidth)
private void	moveAllTheWayOver(BlockBox current, FloatManager.Direction direction)
private void	moveClear(CssContext cssCtx, BlockFormattingContext bfc, Box current, List<FloatManager.BoxOffset> floats)
private void	moveFloatBelow(CssContext cssCtx, BlockFormattingContext bfc, Box current, List<FloatManager.BoxOffset> floats)
private boolean	overlaps(CssContext cssCtx, BlockFormattingContext bfc, BlockBox current, List<FloatManager.BoxOffset> floats)
void	performFloatOperation(FloatManager.FloatOperation op)
private void	performFloatOperation(FloatManager.FloatOperation op, List<FloatManager.BoxOffset> floats)
private void	position(CssContext cssCtx, BlockFormattingContext bfc, BlockBox current, FloatManager.Direction direction)
void	removeFloat(BlockBox floater)
private void	removeFloat(BlockBox floater, List<FloatManager.BoxOffset> floats)
private void	save(BlockBox current, Layer layer, BlockFormattingContext bfc, FloatManager.Direction direction)

Methods inherited from class Object

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

Field Details

_leftFloats

private final List<FloatManager.BoxOffset> _leftFloats

_rightFloats

private final List<FloatManager.BoxOffset> _rightFloats

_master

private final Box _master

Constructor Details

FloatManager

public FloatManager(Box master)

Method Details

floatBox

public void floatBox(LayoutContext c,
 Layer layer,
 BlockFormattingContext bfc,
 BlockBox box)

clear

public void clear(CssContext cssCtx,
 BlockFormattingContext bfc,
 Box box)

save

private void save(BlockBox current,
 Layer layer,
 BlockFormattingContext bfc,
 FloatManager.Direction direction)

position

private void position(CssContext cssCtx,
 BlockFormattingContext bfc,
 BlockBox current,
 FloatManager.Direction direction)

getFloats

private List<FloatManager.BoxOffset> getFloats(FloatManager.Direction direction)

getOpposingFloats

private List<FloatManager.BoxOffset> getOpposingFloats(FloatManager.Direction direction)

alignToLastFloat

private void alignToLastFloat(CssContext cssCtx,
 BlockFormattingContext bfc,
 BlockBox current,
 FloatManager.Direction direction)

alignToLastOpposingFloat

private void alignToLastOpposingFloat(CssContext cssCtx,
 BlockFormattingContext bfc,
 BlockBox current,
 FloatManager.Direction direction)

moveAllTheWayOver

private void moveAllTheWayOver(BlockBox current,
 FloatManager.Direction direction)

fitsInContainingBlock

private boolean fitsInContainingBlock(BlockBox current)

findLowestY

private int findLowestY(CssContext cssCtx,
 List<FloatManager.BoxOffset> floats)

getClearDelta

public int getClearDelta(CssContext cssCtx,
 int bfcRelativeY)

overlaps

private boolean overlaps(CssContext cssCtx,
 BlockFormattingContext bfc,
 BlockBox current,
 List<FloatManager.BoxOffset> floats)

moveFloatBelow

private void moveFloatBelow(CssContext cssCtx,
 BlockFormattingContext bfc,
 Box current,
 List<FloatManager.BoxOffset> floats)

moveClear

private void moveClear(CssContext cssCtx,
 BlockFormattingContext bfc,
 Box current,
 List<FloatManager.BoxOffset> floats)

removeFloat

public void removeFloat(BlockBox floater)

removeFloat

private void removeFloat(BlockBox floater,
 List<FloatManager.BoxOffset> floats)

calcFloatLocations

public void calcFloatLocations()

calcFloatLocations

private void calcFloatLocations(List<FloatManager.BoxOffset> floats)

applyLineHeightHack

private void applyLineHeightHack(CssContext cssCtx,
 Box line,
 Rectangle bounds)

getNextLineBoxDelta

public int getNextLineBoxDelta(CssContext cssCtx,
 BlockFormattingContext bfc,
 LineBox line,
 int containingBlockContentWidth)

calcDelta

private int calcDelta(CssContext cssCtx,
 LineBox line,
 FloatManager.BoxDistance boxDistance)

getLeftFloatDistance

public int getLeftFloatDistance(CssContext cssCtx,
 BlockFormattingContext bfc,
 LineBox line,
 int containingBlockContentWidth)

getRightFloatDistance

public int getRightFloatDistance(CssContext cssCtx,
 BlockFormattingContext bfc,
 LineBox line,
 int containingBlockContentWidth)

getFloatDistance

private FloatManager.BoxDistance getFloatDistance(CssContext cssCtx,
 BlockFormattingContext bfc,
 LineBox line,
 int containingBlockContentWidth,
 List<FloatManager.BoxOffset> floatsList,
 FloatManager.Direction direction)

getMaster

public Box getMaster()

getOffset

public Point getOffset(BlockBox floater)

getOffset

@CheckReturnValue
private @Nullable Point getOffset(BlockBox floater,
 List<FloatManager.BoxOffset> floats)

performFloatOperation

private void performFloatOperation(FloatManager.FloatOperation op,
 List<FloatManager.BoxOffset> floats)

performFloatOperation

public void performFloatOperation(FloatManager.FloatOperation op)