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## org.apache.fop.render
Class AbstractRenderer

    java.lang.Object
      org.apache.fop.render.AbstractRenderer

All Implemented Interfaces:
  Constants, Renderer

Direct Known Subclasses:
  PrintRenderer

    public abstract class AbstractRenderer

extends java.lang.Object
implements Renderer, Constants

Abstract base class for all renderers. The Abstract renderer does all the top level processing of the area tree and adds some abstract methods to handle viewports. This keeps track of the current block and inline position.

Field Summary
`protected int` | `containingBPPosition` the block progression position of the containing block used for absolutely positioned blocks
`protected int` | `containingIPPosition` the inline progression position of the containing block used for absolutely positioned blocks
`protected int` | `currentBPPosition` block progression position
`protected int` | `currentIPPosition` inline progression position
`protected PageViewport` | `currentPageViewport` the currently active PageViewport
`protected static org.apache.commons.logging.Log` | `log` logging instance
`protected FOUserAgent` | `userAgent` user agent

Fields inherited from interface org.apache.fop.render.Renderer
`ROLE`

Fields inherited from interface org.apache.fop.fo.Constants
`COMPOUND_COUNT, COMPOUND_MASK, COMPOUND_SHIFT, CP_BLOCK_PROGRESSION_DIRECTION, CP_CONDITIONALITY, CP_INLINE_PROGRESSION_DIRECTION, CP_LENGTH, CP_MAXIMUM, CP_MINIMUM, CP_OPTIMUM, CP_PRECEDENCE, CP_WITHIN_COLUMN, CP_WITHIN_LINE, CP_WITHIN_PAGE, EN_100, EN_200, EN_300, EN_400, EN_500, EN_600, EN_700, EN_800, EN_900, EN_ABSOLUTE, EN_ABSOLUTE_COLORMETRIC, EN_AFTER, EN_AFTER_EDGE, EN_ALL, EN_ALPHABETIC, EN_ALTERNATE, EN_ALWAYS, EN_ANY, EN_AUTO, EN_AUTO_EVEN, EN_AUTO_ODD, EN_AVOID, EN_BACKSLANT, EN_BASELINE, EN_BEFORE, EN_BEFORE_EDGE, EN_BIDI_OVERRIDE, EN_BLANK, EN_BLINK, EN_BLOCK, EN_BOLDER, EN_BOTH, EN_BOTTOM, EN_BOUNDED_IN_ONE_DIMENSION, EN_BT, EN_CAPITALIZE, EN_CAPTION, EN_CENTER, EN_CENTRAL, EN_CHARACTER_BY_CHARACTER, EN_COLLAPSE, EN_COLLAPSE_WITH_PRECEDENCE, EN_COLUMN, EN_CONDENSED, EN_CONSIDER_SHIFTS, EN_DASHED, EN_DISCARD, EN_DISREGARD_SHIFTS, EN_DOCUMENT, EN_DOTS, EN_DOTTED, EN_DOUBLE, EN_EMBED, EN_END, EN_END_ON_EVEN, EN_END_ON_ODD, EN_ERROR_IF_OVERFLOW, EN_EVEN, EN_EVEN_PAGE, EN_EXPANDED, EN_EXTRA_CONDENSED, EN_EXTRA_EXPANDED, EN_FALSE, EN_FIC, EN_FIRST, EN_FIRST_STARTING, EN_FIXED, EN_FONT_HEIGHT, EN_FORCE, EN_FSWP, EN_GROOVE, EN_HANGING, EN_HIDDEN, EN_HIDE, EN_ICON, EN_IDEOGRAPHIC, EN_IGNORE, EN_IGNORE_IF_AFTER_LINEFEED, EN_IGNORE_IF_BEFORE_LINEFEED, EN_IGNORE_IF_SURROUNDING_LINEFEED, EN_INDEFINITE, EN_INDENT, EN_INHERIT, EN_INSET, EN_INSIDE, EN_INTEGER_PIXELS, EN_ITALIC, EN_JUSTIFY, EN_LARGER, EN_LAST, EN_LAST_ENDING, EN_LAST_STARTING, EN_LEAVE_SEPARATE, EN_LEFT, EN_LEWP, EN_LIGHTER, EN_LINE, EN_LINE_HEIGHT, EN_LINE_THROUGH, EN_LINK, EN_LOWERCASE, EN_LR, EN_LR_TB, EN_LSWP, EN_LTR, EN_MATHEMATICAL, EN_MAX_HEIGHT, EN_MENU, EN_MERGE, EN_MESSAGE_BOX, EN_MIDDLE, EN_NARROWER, EN_NEW, EN_NO_BLINK, EN_NO_CHANGE, EN_NO_FORCE, EN_NO_LIMIT, EN_NO_LINE_THROUGH, EN_NO_LINK, EN_NO_OVERLINE, EN_NO_UNDERLINE, EN_NO_WRAP, EN_NON_UNIFORM, EN_NONE, EN_NOREPEAT, EN_NORMAL, EN_NOT_BLANK, EN_OBLIQUE, EN_ODD, EN_ODD_PAGE, EN_ONLY, EN_OUTSET, EN_OUTSIDE, EN_OVERLINE, EN_PAGE, EN_PAGE_SEQUENCE, EN_PAGINATE, EN_PERCEPTUAL, EN_PRE, EN_PRESERVE, EN_REFERENCE_AREA, EN_RELATIVE, EN_RELATIVE_COLOMETRIC, EN_REPEAT, EN_REPEATX, EN_REPEATY, EN_REPLACE, EN_RESAMPLE_ANY_METHOD, EN_RESET_SIZE, EN_REST, EN_RETAIN, EN_RIDGE, EN_RIGHT, EN_RL, EN_RL_TB, EN_RTL, EN_RULE, EN_SATURATION, EN_SCALE_DOWN_TO_FIT, EN_SCALE_TO_FIT, EN_SCALE_UP_TO_FIT, EN_SCROLL, EN_SEMI_CONDENSED, EN_SEMI_EXPANDED, EN_SEPARATE, EN_SHOW, EN_SMALL_CAPS, EN_SMALL_CAPTION, EN_SMALLER, EN_SOLID, EN_SPACE, EN_START, EN_STATIC, EN_STATUS_BAR, EN_SUB, EN_SUPER, EN_SUPPRESS, EN_TABLE, EN_TABLE_FRAGMENT, EN_TB, EN_TB_LR, EN_TB_RL, EN_TEXT_AFTER_EDGE, EN_TEXT_BEFORE_EDGE, EN_TEXT_BOTTOM, EN_TEXT_TOP, EN_TOP, EN_TRADITIONAL, EN_TREAT_AS_SPACE, EN_TREAT_AS_ZERO_WIDTH_SPACE, EN_TRUE, EN_ULTRA_CONDENSED, EN_ULTRA_EXPANDED, EN_UNBOUNDED, EN_UNDERLINE, EN_UNIFORM, EN_UPPERCASE, EN_USE_FONT_METRICS, EN_USE_SCRIPT, EN_USECONTENT, EN_VISIBLE, EN_WIDER, EN_WRAP, EN_X_DISTRIBUTE, EN_X_FILL, ENUM_COUNT, FO_BASIC_LINK, FO_BIDI_OVERRIDE, FO_BLOCK, FO_BLOCK_CONTAINER, FO_BOOKMARK, FO_BOOKMARK_TITLE, FO_BOOKMARK_TREE, FO_CHANGE_BAR_BEGIN, FO_CHANGE_BAR_END, FO_CHARACTER, FO_COLOR_PROFILE, FO_CONDITIONAL_PAGE_MASTER_REFERENCE, FO_DECLARATIONS, FO_EXTERNAL_GRAPHIC, FO_FLOAT, FO_FLOW, FO_FLOW_ASSIGNMENT, FO_FLOW_MAP, FO_FLOW_NAME_SPECIFIER, FO_FLOW_SOURCE_LIST, FO_FLOW_TARGET_LIST, FO_FOLIO_PREFIX, FO_FOLIO_SUFFIX, FO_FOOTNOTE, FO_FOOTNOTE_BODY, FO_INDEX_KEY_REFERENCE, FO_INDEX_PAGE_CITATION_LIST, FO_INDEX_PAGE_CITATION_LIST_SEPARATOR, FO_INDEX_PAGE_CITATION_RANGE_SEPARATOR, FO_INDEX_PAGE_NUMBER_PREFIX, FO_INDEX_PAGE_NUMBER_SUFFIX, FO_INDEX_RANGE_BEGIN, FO_INDEX_RANGE_END, FO_INITIAL_PROPERTY_SET, FO_INLINE, FO_INLINE_CONTAINER, FO_INSTREAM_FOREIGN_OBJECT, FO_LAYOUT_MASTER_SET, FO_LEADER, FO_LIST_BLOCK, FO_LIST_ITEM, FO_LIST_ITEM_BODY, FO_LIST_ITEM_LABEL, FO_MARKER, FO_MULTI_CASE, FO_MULTI_PROPERTIES, FO_MULTI_PROPERTY_SET, FO_MULTI_SWITCH, FO_MULTI_TOGGLE, FO_PAGE_NUMBER, FO_PAGE_NUMBER_CITATION, FO_PAGE_NUMBER_CITATION_LAST, FO_PAGE_SEQUENCE, FO_PAGE_SEQUENCE_MASTER, FO_PAGE_SEQUENCE_WRAPPER, FO_REGION_AFTER, FO_REGION_BEFORE, FO_REGION_BODY, FO_REGION_END, FO_REGION_NAME_SPECIFIER, FO_REGION_START, FO_REPEATABLE_PAGE_MASTER_ALTERNATIVES, FO_REPEATABLE_PAGE_MASTER_REFERENCE, FO_RETRIEVE_MARKER, FO_RETRIEVE_TABLE_MARKER, FO_ROOT, FO_SCALING_VALUE_CITATION, FO_SIMPLE_PAGE_MASTER, FO_SINGLE_PAGE_MASTER_REFERENCE, FO_STATIC_CONTENT, FO_TABLE, FO_TABLE_AND_CAPTION, FO_TABLE_BODY, FO_TABLE_CAPTION, FO_TABLE_CELL, FO_TABLE_COLUMN, FO_TABLE_FOOTER, FO_TABLE_HEADER, FO_TABLE_ROW, FO_TITLE, FO_UNKNOWN_NODE, FO_WRAPPER, FRM_OBJ_COUNT, NOT_SET, PR_ABSOLUTE_POSITION, PR_ACTIVE_STATE, PR_ALIGNMENT_ADJUST, PR_ALIGNMENT_BASELINE, PR_AUTO_RESTORE, PR_AZIMUTH, PR_BACKGROUND, PR_BACKGROUND_ATTACHMENT, PR_BACKGROUND_COLOR, PR_BACKGROUND_IMAGE, PR_BACKGROUND_POSITION, PR_BACKGROUND_POSITION_HORIZONTAL, PR_BACKGROUND_POSITION_VERTICAL, PR_BACKGROUND_REPEAT, PR_BASELINE_SHIFT, PR_BLANK_OR_NOT_BLANK, PR_BLOCK_PROGRESSION_DIMENSION, PR_BORDER, PR_BORDER_AFTER_COLOR, PR_BORDER_AFTER_PRECEDENCE, PR_BORDER_AFTER_STYLE, PR_BORDER_AFTER_WIDTH, PR_BORDER_BEFORE_COLOR, PR_BORDER_BEFORE_PRECEDENCE, PR_BORDER_BEFORE_STYLE, PR_BORDER_BEFORE_WIDTH, PR_BORDER_BOTTOM, PR_BORDER_BOTTOM_COLOR, PR_BORDER_BOTTOM_STYLE, PR_BORDER_BOTTOM_WIDTH, PR_BORDER_COLLAPSE, PR_BORDER_COLOR, PR_BORDER_END_COLOR, PR_BORDER_END_PRECEDENCE, PR_BORDER_END_STYLE, PR_BORDER_END_WIDTH, PR_BORDER_LEFT, PR_BORDER_LEFT_COLOR, PR_BORDER_LEFT_STYLE, PR_BORDER_LEFT_WIDTH, PR_BORDER_RIGHT, PR_BORDER_RIGHT_COLOR, PR_BORDER_RIGHT_STYLE, PR_BORDER_RIGHT_WIDTH, PR_BORDER_SEPARATION, PR_BORDER_SPACING, PR_BORDER_START_COLOR, PR_BORDER_START_PRECEDENCE, PR_BORDER_START_STYLE, PR_BORDER_START_WIDTH, PR_BORDER_STYLE, PR_BORDER_TOP, PR_BORDER_TOP_COLOR, PR_BORDER_TOP_STYLE, PR_BORDER_TOP_WIDTH, PR_BORDER_WIDTH, PR_BOTTOM, PR_BREAK_AFTER, PR_BREAK_BEFORE, PR_CAPTION_SIDE, PR_CASE_NAME, PR_CASE_TITLE, PR_CHANGE_BAR_CLASS, PR_CHANGE_BAR_COLOR, PR_CHANGE_BAR_OFFSET, PR_CHANGE_BAR_PLACEMENT, PR_CHANGE_BAR_STYLE, PR_CHANGE_BAR_WIDTH, PR_CHARACTER, PR_CLEAR, PR_CLIP, PR_COLOR, PR_COLOR_PROFILE_NAME, PR_COLUMN_COUNT, PR_COLUMN_GAP, PR_COLUMN_NUMBER, PR_COLUMN_WIDTH, PR_CONTENT_HEIGHT, PR_CONTENT_TYPE, PR_CONTENT_WIDTH, PR_COUNTRY, PR_CUE, PR_CUE_AFTER, PR_CUE_BEFORE, PR_DESTINATION_PLACEMENT_OFFSET, PR_DIRECTION, PR_DISPLAY_ALIGN, PR_DOMINANT_BASELINE, PR_ELEVATION, PR_EMPTY_CELLS, PR_END_INDENT, PR_ENDS_ROW, PR_EXTENT, PR_EXTERNAL_DESTINATION, PR_FLOAT, PR_FLOW_MAP_NAME, PR_FLOW_MAP_REFERENCE, PR_FLOW_NAME, PR_FLOW_NAME_REFERENCE, PR_FONT, PR_FONT_FAMILY, PR_FONT_SELECTION_STRATEGY, PR_FONT_SIZE, PR_FONT_SIZE_ADJUST, PR_FONT_STRETCH, PR_FONT_STYLE, PR_FONT_VARIANT, PR_FONT_WEIGHT, PR_FORCE_PAGE_COUNT, PR_FORMAT, PR_GLYPH_ORIENTATION_HORIZONTAL, PR_GLYPH_ORIENTATION_VERTICAL, PR_GROUPING_SEPARATOR, PR_GROUPING_SIZE, PR_HEIGHT, PR_HYPHENATE, PR_HYPHENATION_CHARACTER, PR_HYPHENATION_KEEP, PR_HYPHENATION_LADDER_COUNT, PR_HYPHENATION_PUSH_CHARACTER_COUNT, PR_HYPHENATION_REMAIN_CHARACTER_COUNT, PR_ID, PR_INDEX_CLASS, PR_INDEX_KEY, PR_INDICATE_DESTINATION, PR_INITIAL_PAGE_NUMBER, PR_INLINE_PROGRESSION_DIMENSION, PR_INTERNAL_DESTINATION, PR_INTRINSIC_SCALE_VALUE, PR_INTRUSION_DISPLACE, PR_KEEP_TOGETHER, PR_KEEP_WITH_NEXT, PR_KEEP_WITH_PREVIOUS, PR_LANGUAGE, PR_LAST_LINE_END_INDENT, PR_LEADER_ALIGNMENT, PR_LEADER_LENGTH, PR_LEADER_PATTERN, PR_LEADER_PATTERN_WIDTH, PR_LEFT, PR_LETTER_SPACING, PR_LETTER_VALUE, PR_LINE_HEIGHT, PR_LINE_HEIGHT_SHIFT_ADJUSTMENT, PR_LINE_STACKING_STRATEGY, PR_LINEFEED_TREATMENT, PR_MARGIN, PR_MARGIN_BOTTOM, PR_MARGIN_LEFT, PR_MARGIN_RIGHT, PR_MARGIN_TOP, PR_MARKER_CLASS_NAME, PR_MASTER_NAME, PR_MASTER_REFERENCE, PR_MAX_HEIGHT, PR_MAX_WIDTH, PR_MAXIMUM_REPEATS, PR_MEDIA_USAGE, PR_MERGE_PAGES_ACROSS_INDEX_KEY_REFERENCES, PR_MERGE_RANGES_ACROSS_INDEX_KEY_REFERENCES, PR_MERGE_SEQUENTIAL_PAGE_NUMBERS, PR_MIN_HEIGHT, PR_MIN_WIDTH, PR_NUMBER_COLUMNS_REPEATED, PR_NUMBER_COLUMNS_SPANNED, PR_NUMBER_ROWS_SPANNED, PR_ODD_OR_EVEN, PR_ORPHANS, PR_OVERFLOW, PR_PADDING, PR_PADDING_AFTER, PR_PADDING_BEFORE, PR_PADDING_BOTTOM, PR_PADDING_END, PR_PADDING_LEFT, PR_PADDING_RIGHT, PR_PADDING_START, PR_PADDING_TOP, PR_PAGE_BREAK_AFTER, PR_PAGE_BREAK_BEFORE, PR_PAGE_BREAK_INSIDE, PR_PAGE_CITATION_STRATEGY, PR_PAGE_HEIGHT, PR_PAGE_NUMBER_TREATMENT, PR_PAGE_POSITION, PR_PAGE_WIDTH, PR_PAUSE, PR_PAUSE_AFTER, PR_PAUSE_BEFORE, PR_PITCH, PR_PITCH_RANGE, PR_PLAY_DURING, PR_POSITION, PR_PRECEDENCE, PR_PROVISIONAL_DISTANCE_BETWEEN_STARTS, PR_PROVISIONAL_LABEL_SEPARATION, PR_REF_ID, PR_REF_INDEX_KEY, PR_REFERENCE_ORIENTATION, PR_REGION_NAME, PR_REGION_NAME_REFERENCE, PR_RELATIVE_ALIGN, PR_RELATIVE_POSITION, PR_RENDERING_INTENT, PR_RETRIEVE_BOUNDARY, PR_RETRIEVE_BOUNDARY_WITHIN_TABLE, PR_RETRIEVE_CLASS_NAME, PR_RETRIEVE_POSITION, PR_RETRIEVE_POSITION_WITHIN_TABLE, PR_RICHNESS, PR_RIGHT, PR_ROLE, PR_RULE_STYLE, PR_RULE_THICKNESS, PR_SCALING, PR_SCALING_METHOD, PR_SCORE_SPACES, PR_SCRIPT, PR_SHOW_DESTINATION, PR_SIZE, PR_SOURCE_DOCUMENT, PR_SPACE_AFTER, PR_SPACE_BEFORE, PR_SPACE_END, PR_SPACE_START, PR_SPAN, PR_SPEAK, PR_SPEAK_HEADER, PR_SPEAK_NUMERAL, PR_SPEAK_PUNCTUATION, PR_SPEECH_RATE, PR_SRC, PR_START_INDENT, PR_STARTING_STATE, PR_STARTS_ROW, PR_STRESS, PR_SUPPRESS_AT_LINE_BREAK, PR_SWITCH_TO, PR_TABLE_LAYOUT, PR_TABLE_OMIT_FOOTER_AT_BREAK, PR_TABLE_OMIT_HEADER_AT_BREAK, PR_TARGET_PRESENTATION_CONTEXT, PR_TARGET_PROCESSING_CONTEXT, PR_TARGET_STYLESHEET, PR_TEXT_ALIGN, PR_TEXT_ALIGN_LAST, PR_TEXT_ALTITUDE, PR_TEXT_DECORATION, PR_TEXT_DEPTH, PR_TEXT_INDENT, PR_TEXT_SHADOW, PR_TEXT_TRANSFORM, PR_TOP, PR_TREAT_AS_WORD_SPACE, PR_UNICODE_BIDI, PR_VERTICAL_ALIGN, PR_VISIBILITY, PR_VOICE_FAMILY, PR_VOLUME, PR_WHITE_SPACE, PR_WHITE_SPACE_COLLAPSE, PR_WHITE_SPACE_TREATMENT, PR_WIDOWS, PR_WIDTH, PR_WORD_SPACING, PR_WRAP_OPTION, PR_WRITING_MODE, PR_X_ALT_TEXT, PR_X_BLOCK_PROGRESSION_UNIT, PR_X_DISABLE_COLUMN_BALANCING, PR_X_NUMBER_CONVERSION_FEATURES, PR_X_ORPHAN_CONTENT_LIMIT, PR_X_WIDOW_CONTENT_LIMIT, PR_X_XML_BASE, PR_XML_LANG, PR_Z_INDEX, PROPERTY_COUNT, PROPERTY_MASK`

Constructor Summary
`AbstractRenderer(FOUserAgent userAgent)`

Method Summary
`protected java.lang.String` | `convertTitleToString(LineArea title)` Utility method to convert a page sequence title to a string.
`protected abstract void` | `endVParea()` Signals exit from a viewport area.
`protected PageViewport` | `getCurrentPageViewport()`
`Graphics2DAdapter` | `getGraphics2DAdapter()`
`ImageAdapter` | `getImageAdapter()`
`FOUserAgent` | `getUserAgent()` Returns the associated user agent.
`protected void` | `handleBlockTraits(Block block)` Handle block traits.
`protected void` | `handleRegionTraits(RegionViewport rv)` Handle the traits for a region This is used to draw the traits for the given page region.
`protected java.awt.geom.AffineTransform` | `mptToPt(java.awt.geom.AffineTransform at)` Converts a millipoint-based transformation matrix to points.
`void` | `preparePage(PageViewport page)` This is called if the renderer supports out of order rendering.
`void` | `processOffDocumentItem(OffDocumentItem odi)` Tells the renderer to process an item not explicitly placed on the document (e.g., PDF bookmarks).
`protected java.awt.geom.AffineTransform` | `ptToMpt(java.awt.geom.AffineTransform at)` Converts a point-based transformation matrix to millipoints.
`protected void` | `renderBeforeFloat(BeforeFloat bf)` Renders a before float area.
`protected void` | `renderBlock(Block block)` Renders a block area.
`protected void` | `renderBlocks(Block parent, java.util.List blocks)` Renders a list of block areas.
`protected void` | `renderBlockViewport(BlockViewport bv, java.util.List children)` Renders a block viewport.
`protected void` | `renderBodyRegion(BodyRegion region)` Renders a body region area.
`protected void` | `renderContainer(Container cont)` Tells the renderer to render an inline container.
`protected void` | `renderFlow(NormalFlow flow)` Renders a flow reference area.
`protected void` | `renderFootnote(Footnote footnote)` Renders a footnote
`protected void` | `renderForeignObject(ForeignObject fo, java.awt.geom.Rectangle2D pos)` Renders a foreign object area.
`void` | `renderImage(Image image, java.awt.geom.Rectangle2D pos)` Renders an image area.
`protected void` | `renderInlineArea(InlineArea inlineArea)` Render the given InlineArea.
`protected abstract void` | `renderInlineAreaBackAndBorders(InlineArea area)` Common method to render the background and borders for any inline area.
`protected void` | `renderInlineBlockParent(InlineBlockParent ibp)` Render the given InlineBlockParent.
`protected void` | `renderInlineParent(InlineParent ip)` Render the given InlineParent.
`protected void` | `renderInlineSpace(Space space)` Render the given Space.
`protected void` | `renderInlineViewport(InlineViewport viewport)` Render the given Viewport.
`protected void` | `renderLeader(Leader area)` Render the given Leader.
`protected void` | `renderLineArea(LineArea line)` Renders a line area.
`protected void` | `renderMainReference(MainReference mr)` Renders the main reference area.
`void` | `renderPage(PageViewport page)` Tells the renderer to render a particular page.
`protected void` | `renderPageAreas(Page page)` Renders page areas.
`protected abstract void` | `renderReferenceArea(Block block)` Renders a block area that represents a reference area.
`protected void` | `renderRegion(RegionReference region)` Renders a region reference area.
`protected void` | `renderRegionViewport(RegionViewport port)` Renders a region viewport.
`protected void` | `renderSpace(SpaceArea space)` Render the given SpaceArea.
`protected void` | `renderText(TextArea text)` Render the given TextArea.
`protected void` | `renderWord(WordArea word)` Render the given WordArea.
`void` | `renderXML(RendererContext ctx, org.w3c.dom.Document doc, java.lang.String namespace)` Render the xml document with the given xml namespace.
`void` | `setDocumentLocale(java.util.Locale locale)`
`abstract void` | `setupFontInfo(FontInfo fontInfo)` Set up the given FontInfo.
`void` | `startPageSequence(LineArea seqTitle)` Deprecated.
`void` | `startPageSequence(PageSequence pageSequence)` Tells the renderer that a new page sequence starts.
`void` | `startRenderer(java.io.OutputStream outputStream)` Initiates the rendering phase.
`protected abstract void` | `startVParea(CTM ctm, java.awt.Rectangle clippingRect)` Establishes a new viewport area.
`void` | `stopRenderer()` Signals the end of the rendering phase.
`boolean` | `supportsOutOfOrder()` Check if this renderer supports out of order rendering.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.apache.fop.render.Renderer
`getMimeType`

Field Detail

### log

    protected static final org.apache.commons.logging.Log log

  logging instance

### userAgent

    protected FOUserAgent userAgent

  user agent

### currentBPPosition

    protected int currentBPPosition

  block progression position

### currentIPPosition

    protected int currentIPPosition

  inline progression position

### containingBPPosition

    protected int containingBPPosition

  the block progression position of the containing block used for absolutely positioned blocks

### containingIPPosition

    protected int containingIPPosition

  the inline progression position of the containing block used for absolutely positioned blocks

### currentPageViewport

    protected PageViewport currentPageViewport

  the currently active PageViewport

Constructor Detail

### AbstractRenderer

    public AbstractRenderer(FOUserAgent userAgent)

Parameters:
  `userAgent` - the user agent that contains configuration details. This cannot be null.

Method Detail

### setupFontInfo

    public abstract void setupFontInfo(FontInfo fontInfo)
                                throws FOPException

  Set up the given FontInfo.

  Specified by:
    `setupFontInfo` in interface `Renderer`
  Parameters:
    `fontInfo` - The font information
  Throws:
    `FOPException` - if an error occurs while setting up the font info object

### getUserAgent

    public FOUserAgent getUserAgent()

  Returns the associated user agent.

  Specified by:
    `getUserAgent` in interface `Renderer`
  Returns:
    the user agent

### startRenderer

    public void startRenderer(java.io.OutputStream outputStream)
                       throws java.io.IOException

  Initiates the rendering phase. This must only be called once for a rendering. If stopRenderer is called then this may be called again for a new document rendering.

  Specified by:
    `startRenderer` in interface `Renderer`
  Parameters:
    `outputStream` - The OutputStream to use for output
  Throws:
    `java.io.IOException` - If an I/O error occurs

### stopRenderer

    public void stopRenderer()
                      throws java.io.IOException

  Signals the end of the rendering phase. The renderer should reset to an initial state and dispose of any resources for the completed rendering.

  Specified by:
    `stopRenderer` in interface `Renderer`
  Throws:
    `java.io.IOException` - If an I/O error occurs

### supportsOutOfOrder

    public boolean supportsOutOfOrder()

  Check if this renderer supports out of order rendering. If this renderer supports out of order rendering then it means that the pages that are not ready will be prepared and a future page will be rendered.

  Specified by:
    `supportsOutOfOrder` in interface `Renderer`
  Returns:
    True if the renderer supports out of order rendering

### setDocumentLocale

    public void setDocumentLocale(java.util.Locale locale)

  Specified by:
    `setDocumentLocale` in interface `Renderer`
  Parameters:
    `locale` - Locale of the language

### processOffDocumentItem

    public void processOffDocumentItem(OffDocumentItem odi)

  Tells the renderer to process an item not explicitly placed on the document (e.g., PDF bookmarks). Note - not all renderers will process all off-document items.

  Specified by:
    `processOffDocumentItem` in interface `Renderer`
  Parameters:
    `odi` - The off-document item to be rendered

### getGraphics2DAdapter

    public Graphics2DAdapter getGraphics2DAdapter()

  Specified by:
    `getGraphics2DAdapter` in interface `Renderer`
  Returns:
    the adapter for painting Java2D images (or null if not supported)

### getImageAdapter

    public ImageAdapter getImageAdapter()

  Specified by:
    `getImageAdapter` in interface `Renderer`
  Returns:
    the adapter for painting RenderedImages (or null if not supported)

### getCurrentPageViewport

    protected PageViewport getCurrentPageViewport()

  Returns:
    the current PageViewport or null, if none is active

### preparePage

    public void preparePage(PageViewport page)

  This is called if the renderer supports out of order rendering. The renderer should prepare the page so that a page further on in the set of pages can be rendered. The body of the page should not be rendered. The page will be rendered at a later time by the call to `Renderer.renderPage(PageViewport)`.

  Specified by:
    `preparePage` in interface `Renderer`
  Parameters:
    `page` - The page viewport to use

### convertTitleToString

    protected java.lang.String convertTitleToString(LineArea title)

  Utility method to convert a page sequence title to a string. Some renderers may only be able to use a string title. A title is a sequence of inline areas that this method attempts to convert to an equivalent string.

  Parameters:
    `title` - The Title to convert
  Returns:
    An expanded string representing the title

### startPageSequence

    public void startPageSequence(LineArea seqTitle)

  Deprecated.

  Tells the renderer that a new page sequence starts.

  Specified by:
    `startPageSequence` in interface `Renderer`
  Parameters:
    `seqTitle` - The title of the page sequence

### startPageSequence

    public void startPageSequence(PageSequence pageSequence)

  Tells the renderer that a new page sequence starts.

  Specified by:
    `startPageSequence` in interface `Renderer`
  Parameters:
    `pageSequence` - the page sequence

### renderPage

    public void renderPage(PageViewport page)
                    throws java.io.IOException,
                           FOPException

  Tells the renderer to render a particular page. A renderer typically responds by packing up the current page and writing it immediately to the output device.

  Specified by:
    `renderPage` in interface `Renderer`
  Parameters:
    `page` - The page to be rendered
  Throws:
    `java.io.IOException` - if an I/O error occurs
    `FOPException` - if a FOP interal error occurs.

### renderPageAreas

    protected void renderPageAreas(Page page)

  Renders page areas.

  Parameters:
    `page` - The page whos page areas are to be rendered

### renderRegionViewport

    protected void renderRegionViewport(RegionViewport port)

  Renders a region viewport.

  The region may clip the area and it establishes a position from where the region is placed.

  Parameters:
    `port` - The region viewport to be rendered

### startVParea

    protected abstract void startVParea(CTM ctm,
                                        java.awt.Rectangle clippingRect)

  Establishes a new viewport area.

  Parameters:
    `ctm` - the coordinate transformation matrix to use
    `clippingRect` - the clipping rectangle if the viewport should be clipping, null if no clipping is performed.

### endVParea

    protected abstract void endVParea()

  Signals exit from a viewport area. Subclasses can restore transformation matrices valid before the viewport area was started.

### handleRegionTraits

    protected void handleRegionTraits(RegionViewport rv)

  Handle the traits for a region This is used to draw the traits for the given page region. (See Sect. 6.4.1.2 of XSL-FO spec.)

  Parameters:
    `rv` - the RegionViewport whose region is to be drawn

### renderRegion

    protected void renderRegion(RegionReference region)

  Renders a region reference area.

  Parameters:
    `region` - The region reference area

### renderBodyRegion

    protected void renderBodyRegion(BodyRegion region)

  Renders a body region area.

  Parameters:
    `region` - The body region

### renderBeforeFloat

    protected void renderBeforeFloat(BeforeFloat bf)

  Renders a before float area.

  Parameters:
    `bf` - The before float area

### renderFootnote

    protected void renderFootnote(Footnote footnote)

  Renders a footnote

  Parameters:
    `footnote` - The footnote

### renderMainReference

    protected void renderMainReference(MainReference mr)

  Renders the main reference area.

  The main reference area contains a list of spans that are stacked on the page. The spans contain a list of normal flow reference areas that are positioned into columns.

  Parameters:
    `mr` - The main reference area

### renderFlow

    protected void renderFlow(NormalFlow flow)

  Renders a flow reference area.

  Parameters:
    `flow` - The flow reference area

### handleBlockTraits

    protected void handleBlockTraits(Block block)

  Handle block traits. This method is called when the correct ip and bp posiiton is set. This should be overridden to draw border and background traits for the block area.

  Parameters:
    `block` - the block area

### renderBlockViewport

    protected void renderBlockViewport(BlockViewport bv,
                                       java.util.List children)

  Renders a block viewport.

  Parameters:
    `bv` - The block viewport
    `children` - The children to render within the block viewport

### renderReferenceArea

    protected abstract void renderReferenceArea(Block block)

  Renders a block area that represents a reference area. The reference area establishes a new coordinate system.

  Parameters:
    `block` - the block area

### renderBlocks

    protected void renderBlocks(Block parent,
                                java.util.List blocks)

  Renders a list of block areas.

  Parameters:
    `parent` - the parent block if the parent is a block, otherwise a null value.
    `blocks` - The block areas

### renderBlock

    protected void renderBlock(Block block)

  Renders a block area.

  Parameters:
    `block` - The block area

### renderLineArea

    protected void renderLineArea(LineArea line)

  Renders a line area.

  A line area may have grouped styling for its children such as underline, background.

  Parameters:
    `line` - The line area

### renderInlineArea

    protected void renderInlineArea(InlineArea inlineArea)

  Render the given InlineArea.

  Parameters:
    `inlineArea` - inline area text to render

### renderInlineAreaBackAndBorders

    protected abstract void renderInlineAreaBackAndBorders(InlineArea area)

  Common method to render the background and borders for any inline area. The all borders and padding are drawn outside the specified area.

  Parameters:
    `area` - the inline area for which the background, border and padding is to be rendered

### renderInlineSpace

    protected void renderInlineSpace(Space space)

  Render the given Space.

  Parameters:
    `space` - the space to render

### renderLeader

    protected void renderLeader(Leader area)

  Render the given Leader.

  Parameters:
    `area` - the leader to render

### renderText

    protected void renderText(TextArea text)

  Render the given TextArea.

  Parameters:
    `text` - the text to render

### renderWord

    protected void renderWord(WordArea word)

  Render the given WordArea.

  Parameters:
    `word` - the word to render

### renderSpace

    protected void renderSpace(SpaceArea space)

  Render the given SpaceArea.

  Parameters:
    `space` - the space to render

### renderInlineParent

    protected void renderInlineParent(InlineParent ip)

  Render the given InlineParent.

  Parameters:
    `ip` - the inline parent to render

### renderInlineBlockParent

    protected void renderInlineBlockParent(InlineBlockParent ibp)

  Render the given InlineBlockParent.

  Parameters:
    `ibp` - the inline block parent to render

### renderInlineViewport

    protected void renderInlineViewport(InlineViewport viewport)

  Render the given Viewport.

  Parameters:
    `viewport` - the viewport to render

### renderImage

    public void renderImage(Image image,
                            java.awt.geom.Rectangle2D pos)

  Renders an image area.

  Parameters:
    `image` - The image
    `pos` - The target position of the image (todo) Make renderImage() protected

### renderContainer

    protected void renderContainer(Container cont)

  Tells the renderer to render an inline container.

  Parameters:
    `cont` - The inline container area

### renderForeignObject

    protected void renderForeignObject(ForeignObject fo,
                                       java.awt.geom.Rectangle2D pos)

  Renders a foreign object area.

  Parameters:
    `fo` - The foreign object area
    `pos` - The target position of the foreign object (todo) Make renderForeignObject() protected

### renderXML

    public void renderXML(RendererContext ctx,
                          org.w3c.dom.Document doc,
                          java.lang.String namespace)

  Render the xml document with the given xml namespace. The Render Context is by the handle to render into the current rendering target.

  Parameters:
    `ctx` - rendering context
    `doc` - DOM Document containing the source document
    `namespace` - Namespace URI of the document

### mptToPt

    protected java.awt.geom.AffineTransform mptToPt(java.awt.geom.AffineTransform at)

  Converts a millipoint-based transformation matrix to points.

  Parameters:
    `at` - a millipoint-based transformation matrix
  Returns:
    a point-based transformation matrix

### ptToMpt

    protected java.awt.geom.AffineTransform ptToMpt(java.awt.geom.AffineTransform at)

  Converts a point-based transformation matrix to millipoints.

  Parameters:
    `at` - a point-based transformation matrix
  Returns:
    a millipoint-based transformation matrix

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