PC Pro 1999 April/DPPCPRO0499.ISO/April/Notes/50b2wic.exe/DATA1.CAB/NotesProgramFilesJavaSupport/rt.jar/java/awt/TextComponent.class

Java Class File | 1998-04-23 | 5.1 KB | 254 lines

package java.awt;

import java.awt.event.TextEvent;
import java.awt.event.TextListener;
import java.awt.peer.TextComponentPeer;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import sun.awt.SunToolkit;

public class TextComponent extends Component {
   String text;
   boolean editable = true;
   int selectionStart;
   int selectionEnd;
   protected transient TextListener textListener;
   private static final long serialVersionUID = -2214773872412987419L;
   private int textComponentSerializedDataVersion = 1;

   TextComponent(String var1) {
      this.text = var1;
      ((Component)this).setCursor(Cursor.getPredefinedCursor(2));
   }

   boolean areInputMethodsEnabled() {
      try {
         Toolkit var1 = Toolkit.getDefaultToolkit();
         return ((SunToolkit)var1).enableInputMethodsForTextComponent();
      } catch (Exception var2) {
         return false;
      }
   }

   public void removeNotify() {
      Object var1 = ((Component)this).getTreeLock();
      synchronized(var1){}

      try {
         TextComponentPeer var3 = (TextComponentPeer)super.peer;
         if (var3 != null) {
            this.text = var3.getText();
            this.selectionStart = var3.getSelectionStart();
            this.selectionEnd = var3.getSelectionEnd();
         }

         super.removeNotify();
      } catch (Throwable var5) {
         throw var5;
      }

   }

   public synchronized void setText(String var1) {
      this.text = var1;
      TextComponentPeer var2 = (TextComponentPeer)super.peer;
      if (var2 != null) {
         var2.setText(var1);
      }

   }

   public synchronized String getText() {
      TextComponentPeer var1 = (TextComponentPeer)super.peer;
      if (var1 != null) {
         this.text = var1.getText();
      }

      return this.text;
   }

   public synchronized String getSelectedText() {
      return this.getText().substring(this.getSelectionStart(), this.getSelectionEnd());
   }

   public boolean isEditable() {
      return this.editable;
   }

   public synchronized void setEditable(boolean var1) {
      this.editable = var1;
      TextComponentPeer var2 = (TextComponentPeer)super.peer;
      if (var2 != null) {
         var2.setEditable(var1);
      }

   }

   public synchronized int getSelectionStart() {
      TextComponentPeer var1 = (TextComponentPeer)super.peer;
      if (var1 != null) {
         this.selectionStart = var1.getSelectionStart();
      }

      return this.selectionStart;
   }

   public synchronized void setSelectionStart(int var1) {
      this.select(var1, this.getSelectionEnd());
   }

   public synchronized int getSelectionEnd() {
      TextComponentPeer var1 = (TextComponentPeer)super.peer;
      if (var1 != null) {
         this.selectionEnd = var1.getSelectionEnd();
      }

      return this.selectionEnd;
   }

   public synchronized void setSelectionEnd(int var1) {
      this.select(this.getSelectionStart(), var1);
   }

   public synchronized void select(int var1, int var2) {
      String var3 = this.getText();
      if (var1 < 0) {
         var1 = 0;
      }

      if (var2 > var3.length()) {
         var2 = var3.length();
      }

      if (var2 < var1) {
         var2 = var1;
      }

      if (var1 > var2) {
         var1 = var2;
      }

      this.selectionStart = var1;
      this.selectionEnd = var2;
      TextComponentPeer var4 = (TextComponentPeer)super.peer;
      if (var4 != null) {
         var4.select(var1, var2);
      }

   }

   public synchronized void selectAll() {
      this.getText();
      this.selectionStart = 0;
      this.selectionEnd = this.getText().length();
      TextComponentPeer var1 = (TextComponentPeer)super.peer;
      if (var1 != null) {
         var1.select(this.selectionStart, this.selectionEnd);
      }

   }

   public synchronized void setCaretPosition(int var1) {
      if (var1 < 0) {
         throw new IllegalArgumentException("position less than zero.");
      } else {
         int var2 = this.getText().length();
         if (var1 > var2) {
            var1 = var2;
         }

         TextComponentPeer var3 = (TextComponentPeer)super.peer;
         if (var3 != null) {
            var3.setCaretPosition(var1);
         } else {
            throw new IllegalComponentStateException("Cannot set caret position until after the peer has been created");
         }
      }
   }

   public synchronized int getCaretPosition() {
      TextComponentPeer var1 = (TextComponentPeer)super.peer;
      int var2 = 0;
      if (var1 != null) {
         var2 = var1.getCaretPosition();
      }

      return var2;
   }

   public synchronized void addTextListener(TextListener var1) {
      this.textListener = AWTEventMulticaster.add(this.textListener, var1);
      super.newEventsOnly = true;
   }

   public void removeTextListener(TextListener var1) {
      this.textListener = AWTEventMulticaster.remove(this.textListener, var1);
   }

   boolean eventEnabled(AWTEvent var1) {
      if (var1.id == 900) {
         return (super.eventMask & 1024L) != 0L || this.textListener != null;
      } else {
         return super.eventEnabled(var1);
      }
   }

   protected void processEvent(AWTEvent var1) {
      if (var1 instanceof TextEvent) {
         this.processTextEvent((TextEvent)var1);
      } else {
         super.processEvent(var1);
      }
   }

   protected void processTextEvent(TextEvent var1) {
      if (this.textListener != null) {
         int var2 = ((AWTEvent)var1).getID();
         switch (var2) {
            case 900:
               this.textListener.textValueChanged(var1);
               return;
         }
      }

   }

   protected String paramString() {
      String var1 = super.paramString() + ",text=" + this.getText();
      if (this.editable) {
         var1 = var1 + ",editable";
      }

      return var1 + ",selection=" + this.getSelectionStart() + "-" + this.getSelectionEnd();
   }

   private void writeObject(ObjectOutputStream var1) throws IOException {
      TextComponentPeer var2 = (TextComponentPeer)super.peer;
      if (var2 != null) {
         this.text = var2.getText();
         this.selectionStart = var2.getSelectionStart();
         this.selectionEnd = var2.getSelectionEnd();
      }

      var1.defaultWriteObject();
      AWTEventMulticaster.save(var1, "textL", this.textListener);
      var1.writeObject((Object)null);
   }

   private void readObject(ObjectInputStream var1) throws ClassNotFoundException, IOException {
      var1.defaultReadObject();

      Object var2;
      while((var2 = var1.readObject()) != null) {
         String var3 = ((String)var2).intern();
         if (var3 == "textL") {
            this.addTextListener((TextListener)var1.readObject());
         } else {
            var1.readObject();
         }
      }

   }
}