Class PSPainter

    • Field Detail

      • log

        private static org.apache.commons.logging.Log log
        logging instance
      • inTextMode

        private boolean inTextMode
    • Constructor Detail

      • PSPainter

        public PSPainter​(PSDocumentHandler documentHandler)
        Default constructor.
        Parameters:
        documentHandler - the parent document handler
    • Method Detail

      • getGenerator

        private org.apache.xmlgraphics.ps.PSGenerator getGenerator()
      • 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,
                               java.lang.String layer)
                        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
        layer - an optional layer label (or null if none)
        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 (and layer).
        Throws:
        IFException - if an error occurs while handling this element
      • createDefaultImageProcessingHints

        protected java.util.Map createDefaultImageProcessingHints​(org.apache.xmlgraphics.image.loader.ImageSessionContext sessionContext)
        Creates the default map of processing hints for the image loading framework.
        Overrides:
        createDefaultImageProcessingHints in class AbstractIFPainter<PSDocumentHandler>
        Parameters:
        sessionContext - the session context for access to resolution information
        Returns:
        the default processing hints
      • drawImageUsingImageHandler

        protected void drawImageUsingImageHandler​(org.apache.xmlgraphics.image.loader.ImageInfo info,
                                                  java.awt.Rectangle rect)
                                           throws org.apache.xmlgraphics.image.loader.ImageException,
                                                  java.io.IOException
        Loads a preloaded image and draws it using a suitable image handler.
        Overrides:
        drawImageUsingImageHandler in class AbstractIFPainter<PSDocumentHandler>
        Parameters:
        info - the information object of the preloaded image
        rect - the rectangle in which to paint the image
        Throws:
        org.apache.xmlgraphics.image.loader.ImageException - if there's an error while processing the image
        java.io.IOException - if there's an I/O error while loading the image
      • 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
      • 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
      • clipBackground

        public void clipBackground​(java.awt.Rectangle rect,
                                   BorderProps bpsBefore,
                                   BorderProps bpsAfter,
                                   BorderProps bpsStart,
                                   BorderProps bpsEnd)
                            throws IFException
        Restricts the current clipping region to the inner border.
        Parameters:
        rect - the rectangle's coordinates and extent
        bpsBefore - the border segment on the before-side (top)
        bpsAfter - the border segment on the after-side (bottom)
        bpsStart - the border segment on the start-side (left)
        bpsEnd - the border segment on the end-side (right)
        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 top,
                                   BorderProps bottom,
                                   BorderProps left,
                                   BorderProps right,
                                   java.awt.Color innerBackgroundColor)
                            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<PSDocumentHandler>
        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
        innerBackgroundColor - the color of the inner background
        Throws:
        IFException - if an error occurs while handling this event
      • 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<PSDocumentHandler>
        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
      • getTypeface

        private Typeface getTypeface​(java.lang.String fontName)
      • saveGraphicsState

        protected void saveGraphicsState()
                                  throws java.io.IOException
        Saves the graphics state of the rendering engine.
        Throws:
        java.io.IOException - if an I/O error occurs
      • restoreGraphicsState

        protected void restoreGraphicsState()
                                     throws java.io.IOException
        Restores the last graphics state of the rendering engine.
        Throws:
        java.io.IOException - if an I/O error occurs
      • beginTextObject

        protected void beginTextObject()
                                throws java.io.IOException
        Indicates the beginning of a text object.
        Throws:
        java.io.IOException - if an I/O error occurs
      • endTextObject

        protected void endTextObject()
                              throws java.io.IOException
        Indicates the end of a text object.
        Throws:
        java.io.IOException - if an I/O error occurs
      • formatMptAsPt

        private java.lang.String formatMptAsPt​(org.apache.xmlgraphics.ps.PSGenerator gen,
                                               int value)
      • drawText

        public 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
      • writeText

        private void writeText​(java.lang.String text,
                               int start,
                               int len,
                               int letterSpacing,
                               int wordSpacing,
                               int[][] dp,
                               Font font,
                               Typeface tf,
                               boolean multiByte)
                        throws java.io.IOException
        Throws:
        java.io.IOException
      • writePostScriptString

        private void writePostScriptString​(java.lang.StringBuffer buffer,
                                           java.lang.StringBuffer string,
                                           boolean multiByte)
      • writePostScriptString

        private int writePostScriptString​(java.lang.StringBuffer buffer,
                                          java.lang.StringBuffer string,
                                          boolean multiByte,
                                          int lineStart)
      • useFont

        private void useFont​(java.lang.String key,
                             int size,
                             boolean otf)
                      throws java.io.IOException
        Throws:
        java.io.IOException