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216 lines
5.6 KiB
216 lines
5.6 KiB
/* PackagesTreeModel Copyright (C) 1999-2002 Jochen Hoenicke.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id$
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*/
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package net.sf.jode.swingui;
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import net.sf.jode.decompiler.Options;
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import net.sf.jode.bytecode.ClassPath;
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///#def JAVAX_SWING javax.swing
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import javax.swing.tree.TreeModel;
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import javax.swing.tree.TreePath;
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import javax.swing.event.TreeModelListener;
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import javax.swing.event.TreeModelEvent;
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///#enddef
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///#def COLLECTIONEXTRA java.lang
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import java.lang.Comparable;
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///#enddef
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///#def COLLECTIONS java.util
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import java.util.Arrays;
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import java.util.TreeSet;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.HashMap;
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import java.util.Map;
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///#enddef
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import java.util.Enumeration;
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import java.util.NoSuchElementException;
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public class PackagesTreeModel implements TreeModel {
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Map cachedChildrens = new HashMap();
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Main main;
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class TreeElement implements Comparable {
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String fullName;
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String name;
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boolean leaf;
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public TreeElement(String prefix, String name, boolean isLeaf) {
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this.fullName = prefix+name;
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this.name = name;
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this.leaf = isLeaf;
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}
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public String getFullName() {
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return fullName;
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}
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public String getName() {
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return name;
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}
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public boolean isLeaf() {
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return leaf;
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}
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public String toString() {
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return name;
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}
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public int compareTo(Object o) {
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TreeElement other = (TreeElement) o;
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if (leaf != other.leaf)
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// files come after directories
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return leaf ? 1 : -1;
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return fullName.compareTo(other.fullName);
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}
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public boolean equals(Object o) {
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return (o instanceof TreeElement)
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&& fullName.equals(((TreeElement)o).fullName);
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}
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public int hashCode() {
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return fullName.hashCode();
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}
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}
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TreeElement root = new TreeElement("", "", false);
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Set listeners = new HashSet();
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public PackagesTreeModel(Main main) {
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this.main = main;
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}
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public void rebuild() {
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cachedChildrens.clear();
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TreeModelListener[] ls;
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synchronized (listeners) {
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ls = (TreeModelListener[])
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listeners.toArray(new TreeModelListener[listeners.size()]);
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}
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TreeModelEvent ev = new TreeModelEvent(this, new Object[] { root });
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for (int i=0; i< ls.length; i++)
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ls[i].treeStructureChanged(ev);
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main.reselect();
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}
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public TreeElement[] getChildrens(TreeElement parent) {
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ClassPath classPath = main.getClassPath();
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TreeElement[] result =
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(TreeElement[]) cachedChildrens.get(parent);
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if (result == null) {
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TreeSet v = new TreeSet();
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String prefix = parent == root ? "" : parent.getFullName() + ".";
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Enumeration enumeration
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= classPath.listClassesAndPackages(parent.getFullName());
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while (enumeration.hasMoreElements()) {
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//insert sorted and remove double elements;
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String name = (String)enumeration.nextElement();
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String fqn = prefix + name;
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boolean isClass = !classPath.isPackage(fqn);
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if (isClass
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&& Options.skipClass(classPath.getClassInfo(fqn)))
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continue;
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TreeElement newElem = new TreeElement(prefix, name, isClass);
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v.add(newElem);
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}
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result = (TreeElement[]) v.toArray(new TreeElement[v.size()]);
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cachedChildrens.put(parent, result);
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}
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return result;
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}
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public void addTreeModelListener(TreeModelListener l) {
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listeners.add(l);
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}
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public void removeTreeModelListener(TreeModelListener l) {
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listeners.remove(l);
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}
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public void valueForPathChanged(TreePath path, Object newValue) {
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// we don't allow values
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}
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public Object getChild(Object parent, int index) {
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return getChildrens((TreeElement) parent)[index];
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}
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public int getChildCount(Object parent) {
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return getChildrens((TreeElement) parent).length;
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}
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public int getIndexOfChild(Object parent, Object child) {
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TreeElement[] childrens = getChildrens((TreeElement) parent);
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int i = Arrays.binarySearch(childrens, child);
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if (i >= 0)
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return i;
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throw new NoSuchElementException
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(((TreeElement)parent).getFullName() + "." + child);
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}
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public Object getRoot() {
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return root;
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}
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public boolean isLeaf(Object node) {
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return ((TreeElement) node).isLeaf();
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}
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public boolean isValidClass(Object node) {
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return ((TreeElement) node).isLeaf();
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}
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public TreePath getPath(String fullName) {
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if (fullName == null || fullName.length() == 0)
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return new TreePath(root);
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int pos = -1;
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int length = 2;
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while ((pos = fullName.indexOf('.', pos+1)) != -1)
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length++;
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TreeElement[] path = new TreeElement[length];
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path[0] = root;
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int i = 0;
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pos = -1;
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next_component:
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while (pos < fullName.length()) {
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int start = pos+1;
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pos = fullName.indexOf('.', start);
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if (pos == -1)
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pos = fullName.length();
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String component = fullName.substring(start, pos);
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TreeElement[] childs = getChildrens(path[i]);
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for (int j=0; j< childs.length; j++) {
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if (childs[j].getName().equals(component)) {
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path[++i] = childs[j];
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continue next_component;
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}
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}
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return null;
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}
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return new TreePath(path);
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}
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public String getFullName(Object node) {
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return ((TreeElement) node).getFullName();
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}
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}
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