first commit

hrmsEjb/net/sf/jasperreports/engine/design/JRDesignExpression.java

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+package net.sf.jasperreports.engine.design;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.StringTokenizer;
+import net.sf.jasperreports.engine.JRExpressionChunk;
+import net.sf.jasperreports.engine.base.JRBaseExpression;
+import net.sf.jasperreports.engine.design.events.JRChangeEventsSupport;
+import net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport;
+
+public class JRDesignExpression extends JRBaseExpression implements JRChangeEventsSupport {
+  private static final long serialVersionUID = 10200L;
+  
+  public static final String PROPERTY_TEXT = "text";
+  
+  public static final String PROPERTY_VALUE_CLASS_NAME = "valueClassName";
+  
+  protected List chunks = new ArrayList();
+  
+  private transient JRPropertyChangeSupport eventSupport;
+  
+  public JRDesignExpression() {
+    regenerateId();
+  }
+  
+  public void setValueClass(Class clazz) {
+    setValueClassName(clazz.getName());
+  }
+  
+  public void setValueClassName(String className) {
+    Object old = this.valueClassName;
+    this.valueClassName = className;
+    this.valueClass = null;
+    this.valueClassRealName = null;
+    getEventSupport().firePropertyChange("valueClassName", old, this.valueClassName);
+  }
+  
+  public void setId(int id) {
+    this.id = id;
+  }
+  
+  public JRExpressionChunk[] getChunks() {
+    JRExpressionChunk[] chunkArray = null;
+    if (this.chunks != null && this.chunks.size() > 0) {
+      chunkArray = new JRExpressionChunk[this.chunks.size()];
+      this.chunks.toArray((Object[])chunkArray);
+    } 
+    return chunkArray;
+  }
+  
+  public void setChunks(List chunks) {
+    this.chunks.clear();
+    this.chunks.addAll(chunks);
+  }
+  
+  public void addChunk(JRDesignExpressionChunk chunk) {
+    this.chunks.add(chunk);
+  }
+  
+  protected void addChunk(byte type, String text) {
+    JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
+    chunk.setType(type);
+    chunk.setText(text);
+    this.chunks.add(chunk);
+  }
+  
+  public void addTextChunk(String text) {
+    JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
+    chunk.setType((byte)1);
+    chunk.setText(text);
+    this.chunks.add(chunk);
+  }
+  
+  public void addParameterChunk(String text) {
+    JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
+    chunk.setType((byte)2);
+    chunk.setText(text);
+    this.chunks.add(chunk);
+  }
+  
+  public void addFieldChunk(String text) {
+    JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
+    chunk.setType((byte)3);
+    chunk.setText(text);
+    this.chunks.add(chunk);
+  }
+  
+  public void addVariableChunk(String text) {
+    JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
+    chunk.setType((byte)4);
+    chunk.setText(text);
+    this.chunks.add(chunk);
+  }
+  
+  public void addResourceChunk(String text) {
+    JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
+    chunk.setType((byte)5);
+    chunk.setText(text);
+    this.chunks.add(chunk);
+  }
+  
+  public void setText(String text) {
+    Object old = getText();
+    this.chunks.clear();
+    if (text != null) {
+      StringBuffer textChunk = new StringBuffer();
+      StringTokenizer tkzer = new StringTokenizer(text, "$", true);
+      int behindDelims = 0;
+      while (tkzer.hasMoreTokens()) {
+        String token = tkzer.nextToken();
+        if (token.equals("$")) {
+          if (behindDelims > 0)
+            textChunk.append("$"); 
+          behindDelims++;
+          continue;
+        } 
+        byte chunkType = 1;
+        if (behindDelims > 0)
+          if (token.startsWith("P{")) {
+            chunkType = 2;
+          } else if (token.startsWith("F{")) {
+            chunkType = 3;
+          } else if (token.startsWith("V{")) {
+            chunkType = 4;
+          } else if (token.startsWith("R{")) {
+            chunkType = 5;
+          }  
+        if (chunkType == 1) {
+          if (behindDelims > 0)
+            textChunk.append("$"); 
+          textChunk.append(token);
+        } else {
+          int end = token.indexOf('}');
+          if (end > 0) {
+            if (behindDelims > 1) {
+              textChunk.append(token);
+            } else {
+              if (textChunk.length() > 0)
+                addTextChunk(textChunk.toString()); 
+              addChunk(chunkType, token.substring(2, end));
+              textChunk = new StringBuffer(token.substring(end + 1));
+            } 
+          } else {
+            if (behindDelims > 0)
+              textChunk.append("$"); 
+            textChunk.append(token);
+          } 
+        } 
+        behindDelims = 0;
+      } 
+      if (behindDelims > 0)
+        textChunk.append("$"); 
+      if (textChunk.length() > 0)
+        addTextChunk(textChunk.toString()); 
+    } 
+    getEventSupport().firePropertyChange("text", old, text);
+  }
+  
+  public JRPropertyChangeSupport getEventSupport() {
+    synchronized (this) {
+      if (this.eventSupport == null)
+        this.eventSupport = new JRPropertyChangeSupport(this); 
+    } 
+    return this.eventSupport;
+  }
+  
+  public Object clone() {
+    JRDesignExpression clone = (JRDesignExpression)super.clone();
+    if (this.chunks != null) {
+      clone.chunks = new ArrayList(this.chunks.size());
+      for (int i = 0; i < this.chunks.size(); i++)
+        clone.chunks.add(((JRExpressionChunk)this.chunks.get(i)).clone()); 
+    } 
+    return clone;
+  }
+}