mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-19 17:09:42 +08:00
361 lines
8.7 KiB
Java
361 lines
8.7 KiB
Java
/* AbstractDocument.java --
|
|
Copyright (C) 2002 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Classpath.
|
|
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
package javax.swing.text;
|
|
|
|
import javax.swing.event.*;
|
|
import javax.swing.undo.*;
|
|
import java.util.*;
|
|
import javax.swing.tree.*;
|
|
|
|
public abstract class AbstractDocument implements Document
|
|
{
|
|
Vector doc_list = new Vector();
|
|
Vector undo_list = new Vector();
|
|
|
|
// these still need to be implemented by a derived class:
|
|
public abstract Element getParagraphElement(int pos);
|
|
public abstract Element getDefaultRootElement();
|
|
|
|
// some inner classes sun says I should have:
|
|
abstract class AbstractElement implements Element, TreeNode
|
|
{
|
|
int count, offset;
|
|
AttributeSet attr;
|
|
Vector elts = new Vector();
|
|
String name;
|
|
Element parent;
|
|
Vector kids = new Vector();
|
|
TreeNode tree_parent;
|
|
|
|
public AbstractElement(Element p, AttributeSet s)
|
|
{ parent = p; attr = s; }
|
|
|
|
public Enumeration children() { return kids.elements(); }
|
|
public boolean getAllowsChildren() { return true; }
|
|
public TreeNode getChildAt(int index) { return (TreeNode) kids.elementAt(index); }
|
|
public int getChildCount() { return kids.size(); }
|
|
public int getIndex(TreeNode node) { return kids.indexOf(node); }
|
|
public TreeNode getParent() { return tree_parent; }
|
|
|
|
public AttributeSet getAttributes() { return attr; }
|
|
public Document getDocument() { return AbstractDocument.this; }
|
|
public Element getElement(int index) { return (Element)elts.elementAt(index); }
|
|
public String getName() { return name; }
|
|
public Element getParentElement() { return parent; }
|
|
|
|
public abstract boolean isLeaf();
|
|
public abstract int getEndOffset();
|
|
public abstract int getElementCount();
|
|
public abstract int getElementIndex(int offset);
|
|
public abstract int getStartOffset();
|
|
}
|
|
|
|
interface AttributeContext
|
|
{
|
|
}
|
|
|
|
|
|
class BranchElement extends AbstractElement
|
|
{
|
|
public BranchElement(Element e, AttributeSet a, int s, int end)
|
|
{ super(e, a); }
|
|
|
|
public boolean isLeaf() { return false; }
|
|
public int getEndOffset() { return 0; }
|
|
public int getElementCount() { return 0; }
|
|
public int getElementIndex(int offset) { return 0; }
|
|
public int getStartOffset() { return 0; }
|
|
}
|
|
|
|
public interface Content
|
|
{
|
|
public Position createPosition(int offset) throws BadLocationException;
|
|
public int length();
|
|
public UndoableEdit insertString(int where, String str) throws BadLocationException;
|
|
public UndoableEdit remove(int where, int nitems) throws BadLocationException;
|
|
public String getString(int where, int len) throws BadLocationException;
|
|
public void getChars(int where, int len, Segment txt) throws BadLocationException;
|
|
}
|
|
|
|
class DefaultDocumentEvent implements DocumentEvent
|
|
{
|
|
int len, off;
|
|
public Document getDocument() { return AbstractDocument.this; }
|
|
public int getLength() { return len; }
|
|
public int getOffset() { return off; }
|
|
public DocumentEvent.EventType getType() { return null; }
|
|
public DocumentEvent.ElementChange getChange(Element elem) { return null; }
|
|
}
|
|
|
|
static class ElementEdit
|
|
{
|
|
}
|
|
|
|
class LeafElement extends AbstractElement
|
|
{
|
|
LeafElement(Element e, AttributeSet a, int s, int end)
|
|
{ super(e, a); }
|
|
|
|
public boolean isLeaf() { return true; }
|
|
public int getEndOffset() { return 0; }
|
|
public int getElementCount() { return 0; }
|
|
public int getElementIndex(int offset) { return 0; }
|
|
public int getStartOffset() { return 0; }
|
|
}
|
|
|
|
|
|
Content content;
|
|
|
|
AbstractDocument(Content doc)
|
|
{
|
|
content = doc;
|
|
}
|
|
|
|
/********************************************************
|
|
*
|
|
* the meat:
|
|
*
|
|
***********/
|
|
|
|
|
|
public void addDocumentListener(DocumentListener listener)
|
|
{
|
|
doc_list.addElement(listener);
|
|
}
|
|
|
|
public void addUndoableEditListener(UndoableEditListener listener)
|
|
{
|
|
undo_list.addElement(listener);
|
|
}
|
|
|
|
protected Element createBranchElement(Element parent, AttributeSet a)
|
|
{
|
|
return new BranchElement(parent, a, 0, 0);
|
|
}
|
|
|
|
protected Element createLeafElement(Element parent, AttributeSet a, int p0, int p1)
|
|
{
|
|
return new LeafElement(parent, a, p0, p1-p0);
|
|
}
|
|
|
|
public Position createPosition(int offs)
|
|
{
|
|
final int a = offs;
|
|
return new Position()
|
|
{
|
|
public int getOffset()
|
|
{
|
|
return a;
|
|
}
|
|
};
|
|
}
|
|
|
|
protected void fireChangedUpdate(DocumentEvent e)
|
|
{
|
|
}
|
|
|
|
protected void fireInsertUpdate(DocumentEvent e)
|
|
{
|
|
}
|
|
|
|
protected void fireRemoveUpdate(DocumentEvent e)
|
|
{
|
|
}
|
|
|
|
protected void fireUndoableEditUpdate(UndoableEditEvent e)
|
|
{
|
|
}
|
|
int getAsynchronousLoadPriority()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
protected AttributeContext getAttributeContext()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
Element getBidiRootElement()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
protected Content getContent()
|
|
{
|
|
return content;
|
|
}
|
|
|
|
protected Thread getCurrentWriter()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
|
|
Dictionary getDocumentProperties()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
public Position getEndPosition()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
public int getLength()
|
|
{
|
|
return content.length();
|
|
}
|
|
|
|
EventListener[] getListeners(Class listenerType)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
public Object getProperty(Object key)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
public Element[] getRootElements()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
public Position getStartPosition()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
public String getText(int offset, int length)
|
|
{
|
|
try {
|
|
return content.getString(offset, length);
|
|
} catch (Exception e) {
|
|
System.out.println("Hmmm, fail to getText: " + offset + " -> " + length);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public void getText(int offset, int length, Segment txt)
|
|
{
|
|
String a = getText(offset, length);
|
|
|
|
if (a == null)
|
|
{
|
|
txt.offset = 0;
|
|
txt.count = 0;
|
|
txt.array = new char[0];
|
|
return;
|
|
}
|
|
|
|
txt.offset = offset;
|
|
txt.count = length;
|
|
|
|
char chars[] = new char[ a.length() ];
|
|
|
|
a.getChars(0, a.length(), chars, 0);
|
|
|
|
txt.array = chars;
|
|
}
|
|
|
|
public void insertString(int offs, String str, AttributeSet a)
|
|
{
|
|
try {
|
|
content.insertString(offs, str);
|
|
} catch (Exception e) {
|
|
System.err.println("FAILED TO INSERT-STRING: " + e + ", at:"+offs);
|
|
}
|
|
}
|
|
|
|
protected void insertUpdate(DefaultDocumentEvent chng, AttributeSet attr)
|
|
{
|
|
}
|
|
|
|
protected void postRemoveUpdate(DefaultDocumentEvent chng)
|
|
{
|
|
}
|
|
|
|
public void putProperty(Object key, Object value)
|
|
{
|
|
}
|
|
|
|
void readLock()
|
|
{
|
|
}
|
|
|
|
void readUnlock()
|
|
{
|
|
}
|
|
|
|
public void remove(int offs, int len)
|
|
{
|
|
}
|
|
|
|
public void removeDocumentListener(DocumentListener listener)
|
|
{
|
|
}
|
|
|
|
public void removeUndoableEditListener(UndoableEditListener listener)
|
|
{
|
|
}
|
|
|
|
protected void removeUpdate(DefaultDocumentEvent chng)
|
|
{
|
|
}
|
|
|
|
public void render(Runnable r)
|
|
{
|
|
}
|
|
|
|
void setAsynchronousLoadPriority(int p)
|
|
{
|
|
}
|
|
|
|
void setDocumentProperties(Dictionary x)
|
|
{
|
|
}
|
|
|
|
protected void writeLock()
|
|
{
|
|
}
|
|
|
|
protected void writeUnlock()
|
|
{
|
|
}
|
|
}
|