diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/codec/postscript/PAPencil.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/codec/postscript/PAPencil.java | 431 |
1 files changed, 431 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/codec/postscript/PAPencil.java b/src/main/java/com/lowagie/text/pdf/codec/postscript/PAPencil.java new file mode 100644 index 0000000..5612603 --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/codec/postscript/PAPencil.java @@ -0,0 +1,431 @@ +/*
+ * Copyright 1998 by Sun Microsystems, Inc.,
+ * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
+ * All rights reserved.
+ *
+ * This software is the confidential and proprietary information
+ * of Sun Microsystems, Inc. ("Confidential Information"). You
+ * shall not disclose such Confidential Information and shall use
+ * it only in accordance with the terms of the license agreement
+ * you entered into with Sun.
+ */
+
+package com.lowagie.text.pdf.codec.postscript;
+
+import java.util.*;
+import java.awt.*;
+import java.awt.font.*;
+import java.awt.geom.*;
+import com.lowagie.text.pdf.PdfContentByte;
+import com.lowagie.text.pdf.PdfGraphics2D;
+
+
+public class PAPencil {
+
+ static protected class State implements Cloneable {
+ public Stroke stroke;
+ public Paint paint;
+ public AffineTransform at;
+ public Shape clipShape;
+ public Font font;
+ public Composite composite;
+ public GeneralPath path;
+
+ public State(){
+ this(null);
+ }
+
+ public State(Graphics2D g){
+ if(g == null){
+ this.stroke = new BasicStroke();
+ this.paint = Color.black;
+ this.at = new AffineTransform();
+ this.font = new Font("SansSerif", Font.PLAIN, 12);
+ this.composite = AlphaComposite.getInstance(AlphaComposite.DST_OVER, 1.0f);
+ this.clipShape = null;
+ } else {
+ this.recordState(g);
+ }
+ this.path = new GeneralPath();
+ }
+
+ public void recordState(Graphics2D g){
+ this.stroke = g.getStroke();
+ this.paint = g.getPaint();
+ this.at = g.getTransform();
+ this.font = g.getFont();
+ this.composite = g.getComposite();
+ this.clipShape = g.getClip();
+ }
+
+ public void stampState(Graphics2D g, Dimension size){
+ g.setTransform(new AffineTransform());
+ g.setClip(new Rectangle(0, 0, size.width, size.height));
+ g.setStroke(this.stroke);
+ g.setPaint(this.paint);
+ g.setTransform(this.at);
+ g.setFont(this.font);
+ g.setComposite(this.composite);
+ if(this.clipShape != null){
+ g.clip(this.clipShape);
+ }
+ }
+
+ public Object clone(){
+ try {
+ State n = (State)super.clone();
+
+ n.at = (AffineTransform) this.at.clone();
+ n.path = new GeneralPath();
+ n.path.append(this.path, false);
+ return n;
+ } catch(CloneNotSupportedException e){
+ throw new InternalError();
+ }
+ }
+
+ }
+
+ //
+ // Class Variables
+ //
+
+ //
+ // Instance Variables
+ //
+
+ /**
+ * The canvas size.
+ */
+ protected Dimension size;
+
+ /**
+ * The current graphics state.
+ */
+ protected State state;
+
+ /**
+ * The stack of graphic states.
+ */
+ protected Stack gStack;
+
+ /**
+ * The font hashtable with postscript names as keys
+ */
+ protected HashMap fonts;
+
+ /**
+ * The current graphics device
+ */
+ public Graphics2D graphics;
+
+ //
+ // Constructors
+ //
+
+ public PAPencil(Component component){
+ this.graphics = (Graphics2D) component.getGraphics();
+ this.size = component.getSize();
+ this.initgraphics();
+ }
+
+ public PAPencil(Graphics graphics, Dimension size){
+ this.graphics = (Graphics2D) graphics;
+ this.size = size;
+ this.initgraphics();
+ }
+
+ //
+ // Graphics state management
+ //
+
+ public void gsave(){
+ this.state.recordState(this.graphics);
+ State next = (State) this.state.clone();
+
+ this.gStack.push(this.state);
+ this.state = next;
+ }
+
+ public void grestore(){
+ if(this.gStack.empty()){
+ this.initgraphics();
+ } else {
+ this.state = (State) this.gStack.pop();
+ this.state.stampState(this.graphics, this.size);
+ }
+ }
+
+ public void grestoreall(){
+ this.initgraphics();
+ }
+
+ public void initgraphics(){
+ AffineTransform at = new AffineTransform();
+ // turn anti-aliasing and high-quality rendering on
+ this.graphics.setRenderingHints(new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON));
+ this.graphics.setRenderingHints(new RenderingHints(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY));
+
+ // initialize to a postscript coordinate system
+ at.translate(0, this.size.getHeight());
+ at.scale(1, -1);
+ this.graphics.setTransform(at);
+ // this.graphics.translate(0, this.size.getHeight());
+ // this.graphics.scale(1, -1);
+
+ // state, stack and page
+ this.state = new State(this.graphics);
+ this.gStack = new Stack();
+ this.erasepage();
+ }
+
+ //
+ // Path definition
+ //
+
+ public void newpath(){
+ this.state.path.reset();
+ }
+
+ public void moveto(double x, double y){
+ this.state.path.moveTo((float) x, (float) y);
+ }
+
+ public void moveto(Point2D p) {
+ this.moveto(p.getX(), p.getY());
+ }
+
+ public void rmoveto(double dx, double dy) throws PainterException {
+ Point2D currentPoint = this.state.path.getCurrentPoint();
+
+ if(currentPoint == null){
+ throw new PainterException("no current point");
+ }
+ this.state.path.moveTo((float) (currentPoint.getX() + dx) , (float) (currentPoint.getY() + dy));
+ }
+
+ public void lineto(double x, double y) throws PainterException {
+ Point2D currentPoint = this.state.path.getCurrentPoint();
+
+ if(currentPoint == null){
+ throw new PainterException("no current point");
+ }
+ this.state.path.lineTo((float) x, (float) y);
+ }
+
+ public void lineto(Point2D p) throws PainterException {
+ this.lineto(p.getX(), p.getY());
+ }
+
+ public void rlineto(double dx, double dy) throws PainterException {
+ Point2D currentPoint = this.state.path.getCurrentPoint();
+
+ if(currentPoint == null){
+ throw new PainterException("no current point");
+ }
+ this.state.path.lineTo((float) (currentPoint.getX() + dx) , (float) (currentPoint.getY() + dy));
+ }
+
+ /**
+ *
+ * @param cx double Centerpoint x
+ * @param cy double Centerpoint y
+ * @param r double Radius r
+ * @param ang1 double first angle
+ * @param ang2 double second angle
+ */
+ public void arc(double cx, double cy, double r, double ang1, double ang2){
+ Arc2D.Float arc = new Arc2D.Float((float) ( cx - r ), (float) ( cy
+ - r ), (float) r * 2f, (float) r * 2f,- (float) ang1,- (float) ( ang2 -
+ ang1 ), Arc2D.OPEN );
+ Point2D currentPoint = this.state.path.getCurrentPoint();
+ if(currentPoint == null){
+ this.state.path.append(arc, false);
+ } else {
+ this.state.path.append(arc, true);
+ }
+ }
+
+ public void arcn(double cx, double cy, double r, double ang1, double ang2) {
+ Arc2D.Float arc = new Arc2D.Float((float) ( cx - r ), (float)
+ ( cy - r ), (float) r * 2f, (float) r * 2f,- (float) ang1, -(float) (
+ ang2 - ang1 ), Arc2D.OPEN );
+ Point2D currentPoint = this.state.path.getCurrentPoint();
+ if(currentPoint == null){
+ this.state.path.append(arc, false);
+ } else {
+ this.state.path.append(arc, true);
+ }
+ }
+
+ public void curveto(double x1, double y1, double x2, double y2,
+ double x3, double y3) throws PainterException {
+ Point2D currentPoint = this.state.path.getCurrentPoint();
+
+ if(currentPoint == null){
+ throw new PainterException("no current point");
+ }
+ this.state.path.curveTo((float) x1, (float) y1, (float) x2, (float) y2,
+ (float) x3, (float) y3);
+ }
+
+ public void rcurveto(double dx1, double dy1, double dx2, double dy2,
+ double dx3, double dy3) throws PainterException {
+ Point2D currentPoint = this.state.path.getCurrentPoint();
+
+ if(currentPoint == null){
+ throw new PainterException("no current point");
+ }
+ double x0 = currentPoint.getX();
+ double y0 = currentPoint.getY();
+ this.curveto(x0 + dx1, y0 + dy1, x0 + dx2, y0 + dy2, x0 + dx3,y0 + dy3);
+ }
+
+ public void closepath(){
+ this.state.path.closePath();
+ }
+
+ // PENDING(uweh): just a placeholder for now
+ public void clippath(){
+ this.rectpath(0.0d, 0.0d, size.width, size.height);
+ }
+ public void clip(){
+ PdfGraphics2D pdfg2d = (PdfGraphics2D) this.graphics;
+ pdfg2d.clip(this.state.path);
+ this.newpath();
+// Area currentclip=new Area(this.state.clipShape);
+// Area addclip=new Area(this.state.path.createTransformedShape(AffineTransform.getTranslateInstance(0,0)));
+// currentclip.intersect(addclip);
+// this.graphics.clip(currentclip );
+ }
+ public void erasepage(){
+ this.graphics.clearRect(0, 0, size.width, size.height);
+ }
+
+ public void charpath(String aString, boolean adjustForStroking)throws PainterException{
+ FontRenderContext frc=this.graphics.getFontRenderContext();
+ Font fn=this.state.font;
+// System.out.println("Fonthoehe:"+fn.getSize2D());
+ GlyphVector glyphVector = fn.createGlyphVector(frc, aString);
+ Point2D currentPoint = this.state.path.getCurrentPoint();
+ Shape glyphShape = glyphVector.getOutline();
+ AffineTransform currentTransform = AffineTransform.getScaleInstance(1,-1);
+ glyphShape=currentTransform.createTransformedShape(glyphShape);
+ AffineTransform currentTransform2 = AffineTransform.getTranslateInstance((float)currentPoint.getX(),(float)currentPoint.getY());
+ glyphShape=currentTransform2.createTransformedShape(glyphShape);
+ this.state.path.append(glyphShape, false);
+ }
+
+ public void showpage(){
+ PdfGraphics2D pdfg2d = (PdfGraphics2D) this.graphics;
+ PdfContentByte cb = pdfg2d.getContent();
+ try {
+ cb.getPdfWriter().newPage();
+ }
+ catch (com.lowagie.text.DocumentException ex) {
+ ex.printStackTrace();
+ }
+ }
+
+ public void show(String string) throws PainterException {
+ Point2D currentPoint = this.state.path.getCurrentPoint();
+ AffineTransform currentTransform = this.graphics.getTransform();
+ Point2D tranformedPoint = currentTransform.transform(currentPoint, null);
+
+ if(currentPoint == null){
+ throw new PainterException("no current point");
+ }
+ this.graphics.setTransform(new AffineTransform());
+ this.graphics.drawString(string, (float) tranformedPoint.getX(), (float) tranformedPoint.getY());
+ this.graphics.setTransform(currentTransform);
+ }
+
+ public void fill(){
+ this.graphics.fill(this.state.path);
+ this.newpath();
+ }
+
+ public void eofill(){
+ this.state.path.setWindingRule(GeneralPath.WIND_EVEN_ODD);
+ this.graphics.fill(this.state.path);
+ this.state.path.setWindingRule(GeneralPath.WIND_NON_ZERO);
+ this.newpath();
+ }
+
+ public void stroke()throws PainterException{
+ this.graphics.draw(this.state.path);
+ this.newpath();
+
+ }
+
+ public void rectfill(double x, double y, double width, double height){
+ this.gsave();
+ this.rectpath(x, y, width, height);
+ this.fill();
+ this.grestore();
+ }
+
+ public void rectfill(Rectangle2D rect){
+ this.rectfill(rect.getX(), rect.getY(), rect.getWidth(), rect.getHeight());
+ }
+
+ public void rectstroke(double x, double y, double width, double height)throws PainterException{
+ this.gsave();
+ this.rectpath(x, y, width, height);
+ this.stroke();
+ this.grestore();
+ }
+
+ public void rectstroke(Rectangle2D rect)throws PainterException{
+ this.rectstroke(rect.getX(), rect.getY(), rect.getWidth(), rect.getHeight());
+ }
+
+ public void rectpath(double x, double y, double width, double height){
+ this.newpath();
+ this.moveto(x, y);
+ try {
+ this.rlineto(width, 0);
+ this.rlineto(0, height);
+ this.rlineto(-width, 0);
+ } catch(PainterException e){
+ }
+ this.closepath();
+ }
+
+ // convenience
+
+ // this guy tries to find an appropiate font
+ // if he fails returns whatever font he wants
+ public Font findFont(String fontname){
+ Font result;
+ StringBuffer buffer = new StringBuffer(fontname);
+ int i, n;
+ n = buffer.length();
+
+ for(i = 0; i < n; i++){
+ if(buffer.charAt(i) == '-'){
+ buffer.setCharAt(i,' ');
+ }
+ }
+
+ fontname = buffer.toString();
+
+ if(this.fonts == null){
+ // construct the fonts dictionary
+ GraphicsEnvironment genv = GraphicsEnvironment.getLocalGraphicsEnvironment();
+ Font[] fontArray = genv.getAllFonts();
+ this.fonts = new HashMap();
+ for(i = 0; i < fontArray.length; i++){
+ String postscriptName = fontArray[i].getPSName();
+ this.fonts.put(postscriptName, fontArray[i]);
+ }
+ }
+ result = (Font) this.fonts.get(fontname);
+ if(result == null){
+// result = new Font("SansSerif", Font.PLAIN, 12);
+ result = new Font("Arial", Font.PLAIN, 12);
+ }
+ return result;
+ }
+}
+
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