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## org.apache.fop.render.java2d
Class Java2DPainter

    java.lang.Object
      org.apache.fop.render.intermediate.AbstractIFPainter
          org.apache.fop.render.java2d.Java2DPainter

All Implemented Interfaces:
  IFPainter

public class Java2DPainter
extends AbstractIFPainter

`IFPainter` implementation that paints on a Graphics2D instance.

Field Summary
`protected FontInfo` | `fontInfo` The font information
`protected Java2DGraphicsState` | `g2dState` The current state, holds a Graphics2D and its context
`protected IFContext` | `ifContext` the IF context

Fields inherited from class org.apache.fop.render.intermediate.AbstractIFPainter
`INSTREAM_OBJECT_URI, state`

Constructor Summary
`Java2DPainter(java.awt.Graphics2D g2d, IFContext context, FontInfo fontInfo)` Main constructor.
`Java2DPainter(java.awt.Graphics2D g2d, IFContext context, FontInfo fontInfo, IFState state)` Special constructor for embedded use (when another painter uses Java2DPainter to convert part of a document into a bitmap, for example).

Method Summary
`void` | `clipRect(java.awt.Rectangle rect)` Restricts the current clipping region with the given rectangle.
`protected RenderingContext` | `createRenderingContext()` Creates a new RenderingContext instance.
`void` | `drawBorderRect(java.awt.Rectangle rect, BorderProps before, BorderProps after, BorderProps start, BorderProps end)` Draws a border rectangle. The border segments are specified through `BorderProps` instances.
`void` | `drawImage(org.w3c.dom.Document doc, java.awt.Rectangle rect)` Draws an image (represented by a DOM document) inside a given rectangle. This is the equivalent to an fo:instream-foreign-object in XSL-FO.
`void` | `drawImage(java.lang.String uri, java.awt.Rectangle rect)` Draws an image identified by a URI inside a given rectangle. This is the equivalent to an fo:external-graphic in XSL-FO.
`void` | `drawLine(java.awt.Point start, java.awt.Point end, int width, java.awt.Color color, RuleStyle style)` Draws a line. NOTE: Currently, only horizontal lines are implemented!
`void` | `drawText(int x, int y, int letterSpacing, int wordSpacing, int[] dx, java.lang.String text)` Draws text. The initial coordinates (x and y) point to the starting point at the normal baseline of the font. The parameters letterSpacing, wordSpacing and the array dx are optional and can be used to influence character positioning (for example, for kerning).
`void` | `endGroup()` Ends the current group and restores the previous coordinate system.
`void` | `endViewport()` Ends the current viewport and restores the previous coordinate system.
`void` | `fillRect(java.awt.Rectangle rect, java.awt.Paint fill)` Fills a rectangular area.
`IFContext` | `getContext()` Returns the intermediate format context object.
`protected FontInfo` | `getFontInfo()` Returns the associated `FontInfo` object.
`protected Java2DGraphicsState` | `getState()` Returns the Java2D graphics state.
`protected void` | `restoreGraphicsState()` Restores the last graphics state from the stack.
`protected void` | `saveGraphicsState()` Saves the current graphics state on the stack.
`void` | `startGroup(java.awt.geom.AffineTransform transform)` Starts a new group of graphical elements. Corresponds to SVG's g element.
`void` | `startViewport(java.awt.geom.AffineTransform transform, java.awt.Dimension size, java.awt.Rectangle clipRect)` Starts a new viewport, establishing a new coordinate system. A viewport has a size and can optionally be clipped. Corresponds to SVG's svg element.

Methods inherited from class org.apache.fop.render.intermediate.AbstractIFPainter
`createDefaultImageProcessingHints, drawImage, drawImage, drawImageUsingDocument, drawImageUsingImageHandler, drawImageUsingURI, getFopFactory, getImageInfo, getLineBoundingBox, getUserAgent, setFont, startGroup, startViewport, toPoints`

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

Field Detail

### ifContext

    protected IFContext ifContext

  the IF context

### fontInfo

    protected FontInfo fontInfo

  The font information

### g2dState

    protected Java2DGraphicsState g2dState

  The current state, holds a Graphics2D and its context

Constructor Detail

### Java2DPainter

    public Java2DPainter(java.awt.Graphics2D g2d,
                         IFContext context,
                         FontInfo fontInfo)

  Main constructor.

Parameters:
  `g2d` - the target Graphics2D instance
  `context` - the IF context
  `fontInfo` - the font information

### Java2DPainter

    public Java2DPainter(java.awt.Graphics2D g2d,
                         IFContext context,
                         FontInfo fontInfo,
                         IFState state)

  Special constructor for embedded use (when another painter uses Java2DPainter to convert part of a document into a bitmap, for example).

Parameters:
  `g2d` - the target Graphics2D instance
  `context` - the IF context
  `fontInfo` - the font information
  `state` - the IF state object

Method Detail

### getContext

    public IFContext getContext()

  Returns the intermediate format context object.

  Specified by:
    `getContext` in class `AbstractIFPainter`
  Returns:
    the context object

### getFontInfo

    protected FontInfo getFontInfo()

  Returns the associated `FontInfo` object.

  Returns:
    the font info

### getState

    protected Java2DGraphicsState getState()

  Returns the Java2D graphics state.

  Returns:
    the graphics state

### startViewport

    public void startViewport(java.awt.geom.AffineTransform transform,
                              java.awt.Dimension size,
                              java.awt.Rectangle clipRect)
                       throws IFException

  Starts a new viewport, establishing a new coordinate system. A viewport has a size and can optionally be clipped. Corresponds to SVG's svg element.

  Parameters:
    `transform` - the transformation matrix establishing the new coordinate system
    `size` - the size of the viewport
    `clipRect` - the clipping rectangle (may be null)
  Throws:
    `IFException` - if an error occurs while handling this element

### endViewport

    public void endViewport()
                     throws IFException

  Ends the current viewport and restores the previous coordinate system.

  Throws:
    `IFException` - if an error occurs while handling this element

### startGroup

    public void startGroup(java.awt.geom.AffineTransform transform)
                    throws IFException

  Starts a new group of graphical elements. Corresponds to SVG's g element.

  Parameters:
    `transform` - the transformation matrix establishing the new coordinate system
  Throws:
    `IFException` - if an error occurs while handling this element

### endGroup

    public void endGroup()
                  throws IFException

  Ends the current group and restores the previous coordinate system.

  Throws:
    `IFException` - if an error occurs while handling this element

### drawImage

    public void drawImage(java.lang.String uri,
                          java.awt.Rectangle rect)
                   throws IFException

  Draws an image identified by a URI inside a given rectangle. This is the equivalent to an fo:external-graphic in XSL-FO.

  Parameters:
    `uri` - the image's URI
    `rect` - the rectangle in which the image shall be painted
  Throws:
    `IFException` - if an error occurs while handling this event

### createRenderingContext

    protected RenderingContext createRenderingContext()

  Creates a new RenderingContext instance.

  Specified by:
    `createRenderingContext` in class `AbstractIFPainter`
  Returns:
    the new rendering context.

### drawImage

    public void drawImage(org.w3c.dom.Document doc,
                          java.awt.Rectangle rect)
                   throws IFException

  Draws an image (represented by a DOM document) inside a given rectangle. This is the equivalent to an fo:instream-foreign-object in XSL-FO.

  Parameters:
    `doc` - the DOM document containing the foreign object
    `rect` - the rectangle in which the image shall be painted
  Throws:
    `IFException` - if an error occurs while handling this event

### clipRect

    public void clipRect(java.awt.Rectangle rect)
                  throws IFException

  Restricts the current clipping region with the given rectangle.

  Parameters:
    `rect` - the rectangle's coordinates and extent
  Throws:
    `IFException` - if an error occurs while handling this event

### fillRect

    public void fillRect(java.awt.Rectangle rect,
                         java.awt.Paint fill)
                  throws IFException

  Fills a rectangular area.

  Parameters:
    `rect` - the rectangle's coordinates and extent
    `fill` - the fill paint
  Throws:
    `IFException` - if an error occurs while handling this event

### drawBorderRect

    public void drawBorderRect(java.awt.Rectangle rect,
                               BorderProps before,
                               BorderProps after,
                               BorderProps start,
                               BorderProps end)
                        throws IFException

  Draws a border rectangle. The border segments are specified through `BorderProps` instances.

  Specified by:
    `drawBorderRect` in interface `IFPainter`
  Overrides:
    `drawBorderRect` in class `AbstractIFPainter`
  Throws:
    `IFException`

### drawLine

    public void drawLine(java.awt.Point start,
                         java.awt.Point end,
                         int width,
                         java.awt.Color color,
                         RuleStyle style)
                  throws IFException

  Draws a line. NOTE: Currently, only horizontal lines are implemented!

  Specified by:
    `drawLine` in interface `IFPainter`
  Overrides:
    `drawLine` in class `AbstractIFPainter`
  Throws:
    `IFException`

### drawText

    public void drawText(int x,
                         int y,
                         int letterSpacing,
                         int wordSpacing,
                         int[] dx,
                         java.lang.String text)
                  throws IFException

  Draws text. The initial coordinates (x and y) point to the starting point at the normal baseline of the font. The parameters letterSpacing, wordSpacing and the array dx are optional and can be used to influence character positioning (for example, for kerning).

  Parameters:
    `x` - X-coordinate of the starting point of the text
    `y` - Y-coordinate of the starting point of the text
    `letterSpacing` - additional spacing between characters (may be 0)
    `wordSpacing` - additional spacing between words (may be 0)
    `dx` - an array of adjustment values for each character in X-direction (may be null)
    `text` - the text
  Throws:
    `IFException` - if an error occurs while handling this event

### saveGraphicsState

    protected void saveGraphicsState()

  Saves the current graphics state on the stack.

### restoreGraphicsState

    protected void restoreGraphicsState()

  Restores the last graphics state from the stack.

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