Java Doc for PSGenerator.java in  » Graphic-Library » xmlgraphics-commons-1.2 » org » apache » xmlgraphics » ps » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Graphic Library » xmlgraphics commons 1.2 » org.apache.xmlgraphics.ps   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.xmlgraphics.ps.PSGenerator PSGenerator public class PSGenerator (Code) This class is used to output PostScript code to an OutputStream. version:    $Id: PSGenerator.java 549118 2007-06-20 14:27:03Z jeremias $ Field Summary final public static  Object ATEND      Indicator for the PostScript interpreter that the value is provided later in the document (mostly in the %%Trailer section). final public static  int DEFAULT_LANGUAGE_LEVEL      final public static  char LF      Constructor Summary public   PSGenerator(OutputStream out)      Creates a new instance. Method Summary public  void commentln(String comment)      Writes a comment to the stream and ends the line. public  void concatMatrix(double a, double b, double c, double d, double e, double f)      Concats the transformation matrix. public  void concatMatrix(double[] matrix)      Concats the transformations matrix. public  void concatMatrix(AffineTransform at)      Concats the transformations matric. final public static  String convertRealToDSC(float value)      Converts a value for use in DSC comments. final public static  String convertStringToDSC(String text)      Converts text by applying escaping rules established in the DSC specs. final public static  String convertStringToDSC(String text, boolean forceParentheses)      Converts text by applying escaping rules established in the DSC specs. public  void defineRect(double x, double y, double w, double h)      Adds a rectangle to the current path. final public static  void escapeChar(char c, StringBuffer target)      Escapes a character conforming to the rules established in the PostScript Language Reference (Search for "Literal Text Strings"). public  void flush()      Flushes the OutputStream. public  String formatDouble(double value)      Formats a double value for PostScript output. public  String formatDouble5(double value)      Formats a double value for PostScript output (higher resolution). public  PSState getCurrentState()      Returns the current graphics state. public  OutputStream getOutputStream()      Returns the OutputStream the PSGenerator writes to. public  int getPSLevel()      Returns the selected PostScript level. public  ResourceTracker getResourceTracker()      Resturns the ResourceTracker instance associated with this PSGenerator. public  boolean isResourceSupplied(PSResource res)      Indicates whether a particular resource is supplied, rather than needed. final public  void newLine()      Writes a newline character to the OutputStream. public  void notifyResourceUsage(PSResource res, boolean needed)      Notifies the generator about the usage of a resource on the current page. public  void notifyStartNewPage()      Notifies the generator that a new page has been started and that the page resource set can be cleared. public  Source resolveURI(String uri)      Attempts to resolve the given URI. public  boolean restoreGraphicsState()      Restores the last graphics state of the rendering engine. public  void saveGraphicsState()      Saves the graphics state of the rendering engine. public  void setPSLevel(int level)      Sets the PostScript level that is used to generate the current document. public  void setResourceTracker(ResourceTracker resTracker)      Sets the ResourceTracker instance to be associated with this PSGenerator. public  void useColor(Color col)      Establishes the specified color. public  void useDash(String pattern)      Establishes the specified dash pattern. public  void useFont(String name, float size)      Establishes the specified font and size. public  void useLineCap(int linecap)      Establishes the specified line cap style. public  void useLineWidth(double width)      Establishes the specified line width. public  void useRGBColor(Color col)      Establishes the specified color (RGB). public  void write(String cmd)      Writes a PostScript command to the stream. public  void writeByteArr(byte[] cmd)      Writes encoded data to the PostScript stream. public  void writeDSCComment(String name)      Writes a DSC comment to the output stream. public  void writeDSCComment(String name, Object param)      Writes a DSC comment to the output stream. public  void writeDSCComment(String name, Object[] params)      Writes a DSC comment to the output stream. public  void writeResources(boolean pageLevel)      Writes a DSC comment for the accumulated used resources, either at page level or at document level. public  void writeln(String cmd)      Writes a PostScript command to the stream and ends the line. Field Detail ATEND final public static Object ATEND(Code) Indicator for the PostScript interpreter that the value is provided later in the document (mostly in the %%Trailer section). DEFAULT_LANGUAGE_LEVEL final public static int DEFAULT_LANGUAGE_LEVEL(Code) Default postscript language level LF final public static char LF(Code) Line feed used by PostScript Constructor Detail PSGenerator public PSGenerator(OutputStream out)(Code) Creates a new instance. Parameters:   out - the OutputStream to write the generated PostScript code to Method Detail commentln public void commentln(String comment) throws IOException(Code) Writes a comment to the stream and ends the line. Output of comments can be disabled to reduce the size of the generated file. Parameters:   comment - comment to write exception:   IOException - In case of an I/O problem concatMatrix public void concatMatrix(double a, double b, double c, double d, double e, double f) throws IOException(Code) Concats the transformation matrix. Parameters:   a - A part Parameters:   b - B part Parameters:   c - C part Parameters:   d - D part Parameters:   e - E part Parameters:   f - F part exception:   IOException - In case of an I/O problem concatMatrix public void concatMatrix(double[] matrix) throws IOException(Code) Concats the transformations matrix. Parameters:   matrix - Matrix to use exception:   IOException - In case of an I/O problem concatMatrix public void concatMatrix(AffineTransform at) throws IOException(Code) Concats the transformations matric. Parameters:   at - the AffineTransform whose matrix to use exception:   IOException - In case of an I/O problem convertRealToDSC final public static String convertRealToDSC(float value)(Code) Converts a value for use in DSC comments. Parameters:   value - the value to convert String The resulting String convertStringToDSC final public static String convertStringToDSC(String text)(Code) Converts text by applying escaping rules established in the DSC specs. Parameters:   text - Text to convert String The resulting String convertStringToDSC final public static String convertStringToDSC(String text, boolean forceParentheses)(Code) Converts text by applying escaping rules established in the DSC specs. Parameters:   text - Text to convert Parameters:   forceParentheses - Force the use of parentheses String The resulting String defineRect public void defineRect(double x, double y, double w, double h) throws IOException(Code) Adds a rectangle to the current path. Parameters:   x - upper left corner Parameters:   y - upper left corner Parameters:   w - width Parameters:   h - height exception:   IOException - In case of an I/O problem escapeChar final public static void escapeChar(char c, StringBuffer target)(Code) Escapes a character conforming to the rules established in the PostScript Language Reference (Search for "Literal Text Strings"). Parameters:   c - character to escape Parameters:   target - target StringBuffer to write the escaped character to flush public void flush() throws IOException(Code) Flushes the OutputStream. exception:   IOException - In case of an I/O problem formatDouble public String formatDouble(double value)(Code) Formats a double value for PostScript output. Parameters:   value - value to format the formatted value formatDouble5 public String formatDouble5(double value)(Code) Formats a double value for PostScript output (higher resolution). Parameters:   value - value to format the formatted value getCurrentState public PSState getCurrentState()(Code) Returns the current graphics state. the current graphics state getOutputStream public OutputStream getOutputStream()(Code) Returns the OutputStream the PSGenerator writes to. the OutputStream getPSLevel public int getPSLevel()(Code) Returns the selected PostScript level. the PostScript level getResourceTracker public ResourceTracker getResourceTracker()(Code) Resturns the ResourceTracker instance associated with this PSGenerator. the ResourceTracker instance or null if none is assigned isResourceSupplied public boolean isResourceSupplied(PSResource res)(Code) Indicates whether a particular resource is supplied, rather than needed. Parameters:   res - the resource true if the resource is registered as being supplied. newLine final public void newLine() throws IOException(Code) Writes a newline character to the OutputStream. throws:   IOException - In case of an I/O problem notifyResourceUsage public void notifyResourceUsage(PSResource res, boolean needed)(Code) Notifies the generator about the usage of a resource on the current page. Parameters:   res - the resource being used Parameters:   needed - true if this is a needed resource, false for a supplied resource notifyStartNewPage public void notifyStartNewPage()(Code) Notifies the generator that a new page has been started and that the page resource set can be cleared. resolveURI public Source resolveURI(String uri)(Code) Attempts to resolve the given URI. PSGenerator should be subclasses to provide more sophisticated URI resolution. Parameters:   uri - URI to access A javax.xml.transform.Source object, or null if the URIcannot be resolved. restoreGraphicsState public boolean restoreGraphicsState() throws IOException(Code) Restores the last graphics state of the rendering engine. true if the state was restored, false if there's a stack underflow. exception:   IOException - In case of an I/O problem saveGraphicsState public void saveGraphicsState() throws IOException(Code) Saves the graphics state of the rendering engine. exception:   IOException - In case of an I/O problem setPSLevel public void setPSLevel(int level)(Code) Sets the PostScript level that is used to generate the current document. Parameters:   level - the PostScript level (currently 1, 2 and 3 are known) setResourceTracker public void setResourceTracker(ResourceTracker resTracker)(Code) Sets the ResourceTracker instance to be associated with this PSGenerator. Parameters:   resTracker - the ResourceTracker instance useColor public void useColor(Color col) throws IOException(Code) Establishes the specified color. Parameters:   col - the color. exception:   IOException - In case of an I/O problem useDash public void useDash(String pattern) throws IOException(Code) Establishes the specified dash pattern. Parameters:   pattern - the dash pattern as defined by the setdash command. exception:   IOException - In case of an I/O problem useFont public void useFont(String name, float size) throws IOException(Code) Establishes the specified font and size. Parameters:   name - name of the font for the "F" command (see FOP Std Proc Set) Parameters:   size - size of the font exception:   IOException - In case of an I/O problem useLineCap public void useLineCap(int linecap) throws IOException(Code) Establishes the specified line cap style. Parameters:   linecap - the line cap style (0, 1 or 2) as defined by the setlinecap command. exception:   IOException - In case of an I/O problem useLineWidth public void useLineWidth(double width) throws IOException(Code) Establishes the specified line width. Parameters:   width - the line width as defined by the setlinewidth command. exception:   IOException - In case of an I/O problem useRGBColor public void useRGBColor(Color col) throws IOException(Code) Establishes the specified color (RGB). Parameters:   col - the color as defined by the setrgbcolor command. exception:   IOException - In case of an I/O problem write public void write(String cmd) throws IOException(Code) Writes a PostScript command to the stream. Parameters:   cmd - The PostScript code to be written. exception:   IOException - In case of an I/O problem writeByteArr public void writeByteArr(byte[] cmd) throws IOException(Code) Writes encoded data to the PostScript stream. Parameters:   cmd - The encoded PostScript code to be written. exception:   IOException - In case of an I/O problem writeDSCComment public void writeDSCComment(String name) throws IOException(Code) Writes a DSC comment to the output stream. Parameters:   name - Name of the DSC comment exception:   IOException - In case of an I/O problem See Also:   org.apache.xmlgraphics.ps.DSCConstants writeDSCComment public void writeDSCComment(String name, Object param) throws IOException(Code) Writes a DSC comment to the output stream. The parameter to the DSC comment can be any object. The object is converted to a String as necessary. Parameters:   name - Name of the DSC comment Parameters:   param - Single parameter to the DSC comment exception:   IOException - In case of an I/O problem See Also:   org.apache.xmlgraphics.ps.DSCConstants writeDSCComment public void writeDSCComment(String name, Object[] params) throws IOException(Code) Writes a DSC comment to the output stream. The parameters to the DSC comment can be any object. The objects are converted to Strings as necessary. Please see the source code to find out what parameters are currently supported. Parameters:   name - Name of the DSC comment Parameters:   params - Array of parameters to the DSC comment exception:   IOException - In case of an I/O problem See Also:   org.apache.xmlgraphics.ps.DSCConstants writeResources public void writeResources(boolean pageLevel) throws IOException(Code) Writes a DSC comment for the accumulated used resources, either at page level or at document level. Parameters:   pageLevel - true if the DSC comment for the page level should be generated, false for the document level (in the trailer) exception:   IOException - In case of an I/O problem writeln public void writeln(String cmd) throws IOException(Code) Writes a PostScript command to the stream and ends the line. Parameters:   cmd - The PostScript code to be written. exception:   IOException - In case of an I/O problem Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)