aboutsummaryrefslogtreecommitdiff
path: root/src/main/java/com/lowagie/text/pdf/codec/postscript/PAEngine.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/codec/postscript/PAEngine.java')
-rw-r--r--src/main/java/com/lowagie/text/pdf/codec/postscript/PAEngine.java155
1 files changed, 0 insertions, 155 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/codec/postscript/PAEngine.java b/src/main/java/com/lowagie/text/pdf/codec/postscript/PAEngine.java
deleted file mode 100644
index e905402..0000000
--- a/src/main/java/com/lowagie/text/pdf/codec/postscript/PAEngine.java
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * 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.*;
-
-
-public class PAEngine extends Object {
-
- static public final int MODE_STACK = 0;
- static public final int MODE_PROCEDURE = 1;
- static public final int MODE_ARRAY = 2;
-
- protected PAContext context;
- protected int mode;
- protected Stack procedure;
- protected int innerProcedures;
-
- public PAEngine(PAContext context){
- super();
- this.context = context;
- this.mode = PAEngine.MODE_STACK;
- }
-
- public void startProcedure() throws PainterException {
- this.procedure = new Stack();
- this.mode = PAEngine.MODE_PROCEDURE;
- this.innerProcedures = 0;
- }
-
- public void endProcedure() throws PainterException {
- this.context.operands.push(new PAToken(this.procedure, PAToken.PROCEDURE));
- this.mode = PAEngine.MODE_STACK;
- }
-
- public void bindProcedure(PAToken patoken){
- Stack oldStack = (Stack) patoken.value;
- Stack newStack = new Stack();
- int i,n;
- n = oldStack.size();
- for(i = 0; i < n; i++){
- Object token = oldStack.elementAt(i);
- if((token instanceof PAToken) && ((PAToken) token).type == PAToken.IDENTIFIER){
- Object foundToken = this.context.findIdentifier(((PAToken) token).value);
- if(foundToken == null){
- newStack.push(token);
- } else {
- newStack.push(foundToken);
- }
- } else {
- newStack.push(token);
- }
- }
- patoken.value = newStack;
- }
-
- public void process(Object token) throws PainterException {
- if(token == null){
- throw new IllegalStateException("Null token encountered; last unknown identifier was " + this.context.getLastUnknownIdentifier()+" at line "+this.context.poorscript.token.beginLine);
- }
- if(PAContext.DebugExecution){
- System.out.print("==>" + token.toString());
-// System.out.flush();
- }
- if(token instanceof PAToken && ((PAToken) token).type == PAToken.IMMEDIATE){
- Object foundValue = this.context.findIdentifier(((PAToken) token).value);
- this.process(foundValue);
- return;
- }
- if(this.mode == MODE_STACK){
- if(token instanceof PACommand){
- ((PACommand) token).execute(this.context);
- } else if(token instanceof PAToken){
- PAToken patoken = (PAToken) token;
-
- switch(patoken.type){
- case PAToken.IDENTIFIER:
- this.process(this.context.findIdentifier(patoken.value));
- break;
- case PAToken.KEY:
- case PAToken.MARK:
- case PAToken.START_ARRAY:
- this.context.operands.push(token);
- break;
- case PAToken.PROCEDURE:
- Enumeration enumx = ((Vector) patoken.value).elements();
- while(enumx.hasMoreElements()){
- this.process(enumx.nextElement());
- }
- break;
- case PAToken.START_PROCEDURE:
- this.startProcedure();
- break;
- case PAToken.END_ARRAY:
- this.context.collectArray();
- break;
- case PAToken.START_DICT:
- this.context.operands.push(token);
- break;
- case PAToken.END_DICT:
- this.context.collectDict();
- break;
- default:
- throw new IllegalStateException("Unknown token encountered" + token);
- }
- } else {
- this.context.operands.push(token);
- }
- } else if(this.mode == MODE_PROCEDURE){
- if(token instanceof PAToken){
- PAToken patoken = (PAToken) token;
-
- switch(patoken.type){
- case PAToken.START_PROCEDURE:
- this.innerProcedures++;
- this.procedure.push(token);
- break;
- case PAToken.END_PROCEDURE:
- if(this.innerProcedures > 0){
- this.innerProcedures--;
- this.procedure.push(token);
- } else {
- this.endProcedure();
- }
- break;
- default:
- this.procedure.push(token);
- }
- } else {
- this.procedure.push(token);
- }
- }
- }
-
- public String litMode(){
- switch(this.mode){
- case MODE_ARRAY: return "Array";
- case MODE_PROCEDURE: return "Proc"+innerProcedures;
- case MODE_STACK: return "Stack";
- default: return "Unknown";
- }
- }
-
-}
-