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couldn't get Horstmann's routine to do EPS not PS so had to backtrack.

This commit is contained in:
Terence Parr 2012-07-14 16:32:04 -07:00
parent 22bb947019
commit f220212a95
4 changed files with 36 additions and 88 deletions
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18
runtime/Java/src/org/antlr/v4/runtime/RuleContext.java
View File

@ -268,17 +268,17 @@ public class RuleContext implements ParseTree.RuleNode {
public void save(Parser parser, String fileName)
throws IOException, PrintException
{
TreeViewer viewer = new TreeViewer(parser, this);
viewer.save(fileName);
// Trees.writePS(this, parser, fileName); // parrt routine
// TreeViewer viewer = new TreeViewer(parser, this);
// viewer.save(fileName);
Trees.writePS(this, parser, fileName); // parrt routine
}
// public void save(Parser parser, String fileName,
// String fontName, int fontSize)
// throws IOException
// {
// Trees.writePS(this, parser, fileName, fontName, fontSize);
// }
public void save(Parser parser, String fileName,
String fontName, int fontSize)
throws IOException
{
Trees.writePS(this, parser, fileName, fontName, fontSize);
}
/** Print out a whole tree, not just a node, in LISP format
* (root child1 .. childN). Print just a node if this is a leaf.

25
runtime/Java/src/org/antlr/v4/runtime/misc/GraphicsSupport.java
View File

@ -46,6 +46,7 @@ import java.awt.print.Printable;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Arrays;
public class GraphicsSupport {
/**
@ -79,11 +80,12 @@ public class GraphicsSupport {
public static void saveImage(final JComponent comp, String fileName)
throws IOException, PrintException
{
if (fileName.endsWith(".ps") || fileName.endsWith(".eps")) {
if (fileName.endsWith(".ps") || fileName.endsWith(".eps") ) {
DocFlavor flavor = DocFlavor.SERVICE_FORMATTED.PRINTABLE;
String mimeType = "application/postscript";
StreamPrintServiceFactory[] factories =
StreamPrintServiceFactory.lookupStreamPrintServiceFactories(flavor, mimeType);
System.out.println(Arrays.toString(factories));
FileOutputStream out = new FileOutputStream(fileName);
if (factories.length > 0) {
PrintService service = factories[0].getPrintService(out);
@ -92,13 +94,17 @@ public class GraphicsSupport {
public int print(Graphics g, PageFormat pf, int page) {
if (page >= 1) return Printable.NO_SUCH_PAGE;
else {
double sf1 = pf.getImageableWidth() / (comp.getWidth() + 1);
double sf2 = pf.getImageableHeight() / (comp.getHeight() + 1);
double s = Math.min(sf1, sf2);
Graphics2D g2 = (Graphics2D) g;
g2.translate((pf.getWidth() - pf.getImageableWidth()) / 2,
(pf.getHeight() - pf.getImageableHeight()) / 2);
g2.scale(s, s);
if ( comp.getWidth() > pf.getImageableWidth() ||
comp.getHeight() > pf.getImageableHeight() )
{
double sf1 = pf.getImageableWidth() / (comp.getWidth() + 1);
double sf2 = pf.getImageableHeight() / (comp.getHeight() + 1);
double s = Math.min(sf1, sf2);
g2.scale(s, s);
}
comp.paint(g);
return Printable.PAGE_EXISTS;
@ -110,17 +116,20 @@ public class GraphicsSupport {
job.print(doc, attributes);
}
} else {
// parrt: doesn't seem to do .pdf. 0-length file generated
// parrt: works with [image/jpeg, image/png, image/x-png, image/vnd.wap.wbmp, image/bmp, image/gif]
Rectangle rect = comp.getBounds();
BufferedImage image = new BufferedImage(rect.width, rect.height,
BufferedImage.TYPE_INT_RGB);
Graphics2D g = (Graphics2D) image.getGraphics();
g.setColor(Color.WHITE);
g.fill(rect);
g.setColor(Color.BLACK);
// g.setColor(Color.BLACK);
comp.paint(g);
String extension = fileName.substring(fileName.lastIndexOf('.') + 1);
ImageIO.write(image, extension, new File(fileName));
boolean result = ImageIO.write(image, extension, new File(fileName));
if ( !result ) {
System.err.println("Now imager for " + extension);
}
g.dispose();
}
}

75
tool/playground/T.g
View File

@ -1,71 +1,8 @@
parser grammar T;
grammar T;
options {tokenVocab=CharVocab;}
s : ID b ;
b : INT ;
@header {
import java.util.Set;
import java.util.HashSet;
}
@members {
public static Set<String> keywords = new HashSet<String>() {{
add("void");
add("int");
add("return");
}};
boolean notLetterOrDigit(int la) {
return !Character.isLetterOrDigit(_input.LA(la));
}
}
// parser rules
prog: ws? (var|func)+ EOF ;
type: kint | kvoid | id ;
var : type id semi ;
func: type id lp args rp body ;
args: arg (',' arg)* ;
arg : type id ;
body: '{' stat+ '}' ;
stat: kreturn e semi
| id eq e semi
| id colon
;
e : integer | id ;
// lexical rules
id : letter+ {!keywords.contains($text)}? ws? ;
lp : '(' ws? ;
rp : ')' ws? ;
eq : '=' ws? ;
colon: ':' ws? ;
semi: ';' ws? ;
kint: {notLetterOrDigit(4)}? 'i' 'n' 't' ;
kvoid: {notLetterOrDigit(5)}? 'v' 'o' 'i' 'd' ;
kreturn: {notLetterOrDigit(7)}? 'r' 'e' 't' 'u' 'r' 'n' ;
integer : digit+ ws? ;
digit
: '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9'
;
letter
: 'a' | 'b' | 'c' | 'd' | 'e' | 'f' | 'g' | 'h' | 'i' | 'j'
| 'k' | 'l' | 'm' | 'n' | 'o' | 'p' | 'q' | 'r' | 's' | 't'
| 'u' | 'v' | 'w' | 'x' | 'y' | 'z'
;
ws : (' ' | '\t' | '\n' | comment)+ ;
comment : '/' '/' ~('\r'|'\n')* '\r' '\n' ;
ID : [a-zA-Z]+ ;
INT : [0-9]+ ;
WS : [ \t\n\r]+ -> skip ;

6
tool/playground/TestT.java
View File

@ -1,6 +1,7 @@
import org.antlr.v4.runtime.CharStream;
import org.antlr.v4.runtime.CommonTokenFactory;
import org.antlr.v4.runtime.CommonTokenStream;
import org.antlr.v4.runtime.ParserRuleContext;
import org.antlr.v4.runtime.UnbufferedCharStream;
import java.io.FileInputStream;
@ -22,7 +23,8 @@ public class TestT {
CommonTokenStream tokens = new CommonTokenStream(lex);
TParser parser = new TParser(tokens);
parser.setBuildParseTree(true);
parser.s();
ParserRuleContext tree = parser.s();
tree.save(parser, "/tmp/t.ps");
}
}