Layer (xhtmlrenderer 3.0.0-M1 API)

java.lang.Object
- org.docx4j.org.xhtmlrenderer.layout.Layer

```
public class Layer
extends Object
```
All positioned content as well as content with an overflow value other than visible creates a layer. Layers which define stacking contexts provide the entry for rendering the box tree to an output device. The main purpose of this class is to provide an implementation of Appendix E of the spec, but it also provides additional utility services including page management and mapping boxes to coordinates (for e.g. links). When rendering to a paged output device, the layer is also responsible for laying out absolute content (which is layed out after its containing block has completed layout).

字段概要

字段
限定符和类型字段和说明

static short PAGED_MODE_PRINT

static short PAGED_MODE_SCREEN

字段
限定符和类型	字段和说明
`static short`	`PAGED_MODE_PRINT`
`static short`	`PAGED_MODE_SCREEN`

构造器概要

构造器
构造器和说明

Layer(Box master)

Layer(Layer parent, Box master)

构造器
构造器和说明
`Layer(Box master)`
`Layer(Layer parent, Box master)`

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`void`	`addChild(Layer layer)`
`void`	`addFloat(BlockBox floater, BlockFormattingContext bfc)`
`void`	`addPage(CssContext c)`
`void`	`addPageSequence(BlockBox start)`
`void`	`addRunningBlock(BlockBox block)`
`void`	`assignPagePaintingPositions(CssContext cssCtx, int mode, int additionalClearance)`
`void`	`assignPagePaintingPositions(CssContext cssCtx, short mode)`
`boolean`	`containsFixedContent()`
`static PageBox`	`createPageBox(CssContext c, String pseudoPage)`
`boolean`	`crossesPageBreak(LayoutContext c, int top, int bottom)`
`void`	`detach()`
`void`	`ensureHasPage(CssContext c, Box box)`
`Box`	`find(CssContext cssCtx, int absX, int absY, boolean findAnonymous)`
`Layer`	`findRoot()`
`void`	`finish(LayoutContext c)`
`List`	`getChildren()`
`Box`	`getEnd()`
`PageBox`	`getFirstPage(CssContext c, Box box)`
`PageBox`	`getLastPage()`
`PageBox`	`getLastPage(CssContext c, Box box)`
`Box`	`getMaster()`
`int`	`getMaxPageWidth(CssContext cssCtx, int additionalClearance)`
`PageBox`	`getPage(CssContext c, int yOffset)`
`List`	`getPages()`
`Dimension`	`getPaintingDimension(LayoutContext c)`
`Layer`	`getParent()`
`int`	`getRelativePageCount(RenderingContext c)`
`int`	`getRelativePageNo(RenderingContext c)`
`BlockBox`	`getRunningBlock(String identifer, PageBox page, PageElementPosition which)`
`Box`	`getSelectionEnd()`
`int`	`getSelectionEndX()`
`int`	`getSelectionEndY()`
`Box`	`getSelectionStart()`
`int`	`getSelectionStartX()`
`int`	`getSelectionStartY()`
`int`	`getZIndex()`
`boolean`	`isInline()`
`boolean`	`isLastPage(PageBox pageBox)`
`boolean`	`isRequiresLayout()`
`boolean`	`isRootLayer()`
`boolean`	`isStackingContext()`
`void`	`layoutPages(LayoutContext c)`
`void`	`paint(RenderingContext c)`
`void`	`paintAsLayer(RenderingContext c, BlockBox startingPoint)`
`void`	`positionChildren(LayoutContext c)`
`void`	`removeFloat(BlockBox floater)`
`void`	`removeLastPage()`
`void`	`removeRunningBlock(BlockBox block)`
`void`	`setEnd(Box end)`
`void`	`setFixedBackground(boolean b)`
`void`	`setInline(boolean inline)`
`void`	`setPages(List pages)`
`void`	`setRequiresLayout(boolean requiresLayout)`
`void`	`setSelectionEnd(Box selectionEnd)`
`void`	`setSelectionEndX(int selectionEndX)`
`void`	`setSelectionEndY(int selectionEndY)`
`void`	`setSelectionStart(Box selectionStart)`
`void`	`setSelectionStartX(int selectionStartX)`
`void`	`setSelectionStartY(int selectionStartY)`
`void`	`setStackingContext(boolean stackingContext)`
`void`	`trimEmptyPages(CssContext c, int maxYHeight)`
`void`	`trimPageCount(int newPageCount)`

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料
- PAGED_MODE_SCREEN
```
public static final short PAGED_MODE_SCREEN
```
  另请参阅:
  
  常量字段值
- PAGED_MODE_PRINT
```
public static final short PAGED_MODE_PRINT
```
  另请参阅:
  
  常量字段值

构造器详细资料

Layer
```
public Layer(Box master)
```

Layer

public Layer(Layer parent,
             Box master)

方法详细资料

getParent
```
public Layer getParent()
```

isStackingContext
```
public boolean isStackingContext()
```

setStackingContext

public void setStackingContext(boolean stackingContext)

getZIndex
```
public int getZIndex()
```

getMaster
```
public Box getMaster()
```

addChild
```
public void addChild(Layer layer)
```

addFloat

public void addFloat(BlockBox floater,
                     BlockFormattingContext bfc)

removeFloat

public void removeFloat(BlockBox floater)

getPaintingDimension

public Dimension getPaintingDimension(LayoutContext c)

paint

public void paint(RenderingContext c)

find

public Box find(CssContext cssCtx,
                int absX,
                int absY,
                boolean findAnonymous)

paintAsLayer

public void paintAsLayer(RenderingContext c,
                         BlockBox startingPoint)

isRootLayer
```
public boolean isRootLayer()
```

positionChildren

public void positionChildren(LayoutContext c)

containsFixedContent
```
public boolean containsFixedContent()
```

setFixedBackground

public void setFixedBackground(boolean b)

getChildren
```
public List getChildren()
```

detach
```
public void detach()
```

isInline
```
public boolean isInline()
```

setInline

public void setInline(boolean inline)

getEnd
```
public Box getEnd()
```

setEnd
```
public void setEnd(Box end)
```

isRequiresLayout
```
public boolean isRequiresLayout()
```

setRequiresLayout

public void setRequiresLayout(boolean requiresLayout)

finish
```
public void finish(LayoutContext c)
```

getPages
```
public List getPages()
```

setPages
```
public void setPages(List pages)
```

isLastPage

public boolean isLastPage(PageBox pageBox)

addPage
```
public void addPage(CssContext c)
```

removeLastPage
```
public void removeLastPage()
```

createPageBox

public static PageBox createPageBox(CssContext c,
                                    String pseudoPage)

getFirstPage

public PageBox getFirstPage(CssContext c,
                            Box box)

getLastPage

public PageBox getLastPage(CssContext c,
                           Box box)

ensureHasPage

public void ensureHasPage(CssContext c,
                          Box box)

getPage

public PageBox getPage(CssContext c,
                       int yOffset)

trimEmptyPages

public void trimEmptyPages(CssContext c,
                           int maxYHeight)

trimPageCount

public void trimPageCount(int newPageCount)

assignPagePaintingPositions

public void assignPagePaintingPositions(CssContext cssCtx,
                                        short mode)

assignPagePaintingPositions

public void assignPagePaintingPositions(CssContext cssCtx,
                                        int mode,
                                        int additionalClearance)

getMaxPageWidth

public int getMaxPageWidth(CssContext cssCtx,
                           int additionalClearance)

getLastPage
```
public PageBox getLastPage()
```

crossesPageBreak

public boolean crossesPageBreak(LayoutContext c,
                                int top,
                                int bottom)

findRoot
```
public Layer findRoot()
```

addRunningBlock

public void addRunningBlock(BlockBox block)

removeRunningBlock

public void removeRunningBlock(BlockBox block)

getRunningBlock

public BlockBox getRunningBlock(String identifer,
                                PageBox page,
                                PageElementPosition which)

layoutPages

public void layoutPages(LayoutContext c)

addPageSequence

public void addPageSequence(BlockBox start)

getRelativePageNo

public int getRelativePageNo(RenderingContext c)

getRelativePageCount

public int getRelativePageCount(RenderingContext c)

getSelectionEnd
```
public Box getSelectionEnd()
```

setSelectionEnd

public void setSelectionEnd(Box selectionEnd)

getSelectionStart
```
public Box getSelectionStart()
```

setSelectionStart

public void setSelectionStart(Box selectionStart)

getSelectionEndX
```
public int getSelectionEndX()
```

setSelectionEndX

public void setSelectionEndX(int selectionEndX)

getSelectionEndY
```
public int getSelectionEndY()
```

setSelectionEndY

public void setSelectionEndY(int selectionEndY)

getSelectionStartX
```
public int getSelectionStartX()
```

setSelectionStartX

public void setSelectionStartX(int selectionStartX)

getSelectionStartY
```
public int getSelectionStartY()
```

setSelectionStartY

public void setSelectionStartY(int selectionStartY)

类 Layer

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

PAGED_MODE_SCREEN

PAGED_MODE_PRINT

构造器详细资料

Layer

Layer

方法详细资料

getParent

isStackingContext

setStackingContext

getZIndex

getMaster

addChild

addFloat

removeFloat

getPaintingDimension

paint

find

paintAsLayer

isRootLayer

positionChildren

containsFixedContent

setFixedBackground

getChildren

detach

isInline

setInline

getEnd

setEnd

isRequiresLayout

setRequiresLayout

finish

getPages

setPages

isLastPage

addPage

removeLastPage

createPageBox

getFirstPage

getLastPage

ensureHasPage

getPage

trimEmptyPages

trimPageCount

assignPagePaintingPositions

assignPagePaintingPositions

getMaxPageWidth

getLastPage

crossesPageBreak

findRoot

addRunningBlock

removeRunningBlock

getRunningBlock

layoutPages

addPageSequence

getRelativePageNo

getRelativePageCount

getSelectionEnd

setSelectionEnd

getSelectionStart

setSelectionStart

getSelectionEndX

setSelectionEndX

getSelectionEndY

setSelectionEndY

getSelectionStartX

setSelectionStartX

getSelectionStartY

setSelectionStartY