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## org.apache.fop.render.intermediate
Interface IFPainter

All Known Implementing Classes:
  AbstractIFPainter, AFPPainter, IFSerializer, Java2DPainter, PCLPainter, PDFPainter, PSPainter, SVGPainter

    public interface IFPainter

Interface used to paint whole documents layouted by Apache FOP.

Call sequence:

     startDocument()
       startDocumentHeader()
       [handleExtension()]*
       endDocumentHeader()
       [
       startPageSequence()
         [
         startPage()
           startPageHeader()
             [handleExtension()]*
           endPageHeader()
           startPageContent()
             (#pageContent)+
           endPageContent()
           startPageTrailer()
             (addTarget())*
           endPageTrailer()
         endPage()
         ]*
       endPageSequence()
       ]*
       startDocumentTrailer()
       [handleExtension()]*
       endDocumentTrailer()
     endDocument()

     #box:
     startBox()
     (#pageContent)+
     endBox()

     #pageContent:
     (
       setFont() |
       drawText() |
       drawRect() |
       drawImage() |
       TODO etc. etc. |
       handleExtensionObject()
     )

Method Summary
`void` | `clipRect(java.awt.Rectangle rect)` Restricts the current clipping region with the given rectangle.
`void` | `drawBorderRect(java.awt.Rectangle rect, BorderProps top, BorderProps bottom, BorderProps left, BorderProps right)` Draws a border rectangle.
`void` | `drawImage(org.w3c.dom.Document doc, java.awt.Rectangle rect)` Draws an image (represented by a DOM document) inside a given rectangle.
`void` | `drawImage(java.lang.String uri, java.awt.Rectangle rect)` Draws an image identified by a URI inside a given rectangle.
`void` | `drawLine(java.awt.Point start, java.awt.Point end, int width, java.awt.Color color, RuleStyle style)` Draws a line.
`void` | `drawText(int x, int y, int letterSpacing, int wordSpacing, int[][] dp, java.lang.String text)` Draws text.
`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.
`void` | `setFont(java.lang.String family, java.lang.String style, java.lang.Integer weight, java.lang.String variant, java.lang.Integer size, java.awt.Color color)` Updates the current font.
`void` | `startGroup(java.awt.geom.AffineTransform transform)` Starts a new group of graphical elements.
`void` | `startGroup(java.awt.geom.AffineTransform[] transforms)` Starts a new group of graphical elements.
`void` | `startViewport(java.awt.geom.AffineTransform[] transforms, java.awt.Dimension size, java.awt.Rectangle clipRect)` Starts a new viewport, establishing a new coordinate system.
`void` | `startViewport(java.awt.geom.AffineTransform transform, java.awt.Dimension size, java.awt.Rectangle clipRect)` Starts a new viewport, establishing a new coordinate system.

Method Detail

### startViewport

    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

### startViewport

    void startViewport(java.awt.geom.AffineTransform[] transforms,
                       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:
    `transforms` - a series of transformation matrices 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

    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

    void startGroup(java.awt.geom.AffineTransform[] transforms)
                    throws IFException

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

  Parameters:
    `transforms` - a series of transformation matrices establishing the new coordinate system
  Throws:
    `IFException` - if an error occurs while handling this element

### startGroup

    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

    void endGroup()
                  throws IFException

  Ends the current group and restores the previous coordinate system.

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

### setFont

    void setFont(java.lang.String family,
                 java.lang.String style,
                 java.lang.Integer weight,
                 java.lang.String variant,
                 java.lang.Integer size,
                 java.awt.Color color)
                 throws IFException

  Updates the current font.

  Parameters:
    `family` - the font family (or null if there's no change)
    `style` - the font style (or null if there's no change)
    `weight` - the font weight (or null if there's no change)
    `variant` - the font variant (or null if there's no change)
    `size` - the font size (or null if there's no change)
    `color` - the text color (or null if there's no change)
  Throws:
    `IFException` - if an error occurs while handling this event

### drawText

    void drawText(int x,
                  int y,
                  int letterSpacing,
                  int wordSpacing,
                  int[][] dp,
                  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)
    `dp` - an array of 4-tuples, expressing [X,Y] placment adjustments and [X,Y] advancement adjustments, in that order (may be null); if not null, then adjustments.length must be the same as text.length()
    `text` - the text
  Throws:
    `IFException` - if an error occurs while handling this event

### clipRect

    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

    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

    void drawBorderRect(java.awt.Rectangle rect,
                        BorderProps top,
                        BorderProps bottom,
                        BorderProps left,
                        BorderProps right)
                        throws IFException

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

  Parameters:
    `rect` - the rectangle's coordinates and extent
    `top` - the border segment on the top edge
    `bottom` - the border segment on the bottom edge
    `left` - the border segment on the left edge
    `right` - the border segment on the right edge
  Throws:
    `IFException` - if an error occurs while handling this event

### drawLine

    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!

  Parameters:
    `start` - the start point of the line
    `end` - the end point of the line
    `width` - the line width
    `color` - the line color
    `style` - the line style (using the Constants.EN_* constants for the rule-style property)
  Throws:
    `IFException` - if an error occurs while handling this event

### drawImage

    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

### drawImage

    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

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