diff options
Diffstat (limited to 'libjava/javax/swing/undo/CompoundEdit.java')
| -rw-r--r-- | libjava/javax/swing/undo/CompoundEdit.java | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/libjava/javax/swing/undo/CompoundEdit.java b/libjava/javax/swing/undo/CompoundEdit.java new file mode 100644 index 00000000000..37a7c4ca4eb --- /dev/null +++ b/libjava/javax/swing/undo/CompoundEdit.java @@ -0,0 +1,282 @@ +/* AbstractTableModel.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.undo; + +// Imports +import java.util.Vector; + +/** + * CompoundEdit + * @author Andrew Selkirk + */ +public class CompoundEdit extends AbstractUndoableEdit { + + //------------------------------------------------------------- + // Variables -------------------------------------------------- + //------------------------------------------------------------- + + /** + * The collection of UndoableEdits undone/redone en + * masse by this CompoundEdit + */ + protected Vector edits = new Vector(); + + /** + * TODO + */ + private boolean inProgress = false; + + + //------------------------------------------------------------- + // Initialization --------------------------------------------- + //------------------------------------------------------------- + + /** + * Create new Compound Edit + */ + public CompoundEdit() { + } // CompoundEdit() + + + //------------------------------------------------------------- + // Interface: UndoableEdit ------------------------------------ + //------------------------------------------------------------- + + /** + * addEdit + * @param anEdit TODO + * @returns TODO + */ + public boolean addEdit(UndoableEdit anEdit) { + + // Variables + UndoableEdit lastEdit; + + if (inProgress == true) { + + // Get Last Edit + lastEdit = lastEdit(); + + // Check for null + if (lastEdit != null) { + + if (lastEdit.addEdit(anEdit) == false) { + if (lastEdit.replaceEdit(anEdit) == false) { + edits.add(anEdit); + } + } + + } // if: lastEdit + + return true; + + } else { + return false; + } + } // addEdit() + + /** + * canRedo + * @returns TODO + */ + public boolean canRedo() { + if (isInProgress() == true || super.canRedo() == false) { + return false; + } + return true; + } // canRedo() + + /** + * canUndo + * @returns TODO + */ + public boolean canUndo() { + if (isInProgress() == true || super.canUndo() == false) { + return false; + } + return true; + } // canUndo() + + /** + * die + */ + public void die() { + + // Variables + int index; + UndoableEdit current; + + // Loop through all contained UndoableEdits + for (index = edits.size() - 1; index >= 0; index--) { + current = (UndoableEdit) edits.elementAt(index); + current.die(); + } // for: index + + } // die() + + /** + * end + */ + public void end() { + inProgress = false; + } // end() + + /** + * getPresentationName + * @returns TODO + */ + public String getPresentationName() { + if (edits.size() == 0) { + return super.getPresentationName(); + } else { + return lastEdit().getPresentationName(); + } + } // getPresentationName() + + /** + * getRedoPresentationName + * @returns TODO + */ + public String getRedoPresentationName() { + if (edits.size() == 0) { + return super.getRedoPresentationName(); + } else { + return lastEdit().getRedoPresentationName(); + } + } // getRedoPresentationName() + + /** + * getUndoPresentationName + * @returns TODO + */ + public String getUndoPresentationName() { + if (edits.size() == 0) { + return super.getUndoPresentationName(); + } else { + return lastEdit().getUndoPresentationName(); + } + } // getUndoPresentationName() + + /** + * isInProgress + * @returns TODO + */ + public boolean isInProgress() { + return inProgress; + } // isInProgress() + + + /** + * isSignigicant + * @returns TODO + */ + public boolean isSignificant() { + + // Variables + int index; + UndoableEdit current; + + // Check each edit + for (index = 0; index < edits.size(); index++) { + current = (UndoableEdit) edits.elementAt(index); + if (current.isSignificant() == true) { + return true; + } + } // for: index + + return false; + + } // isSignificant() + + /** + * lastEdit + * @returns TODO + */ + protected UndoableEdit lastEdit() { + if (edits.size() == 0) { + return null; + } + return (UndoableEdit) edits.elementAt(edits.size() - 1); + } // lastEdit() + + /** + * redo + * @throws CannotRedoException TODO + */ + public void redo() throws CannotRedoException { + + // Variables + int index; + UndoableEdit current; + + // Loop through all contained UndoableEdits + for (index = 0; index < edits.size(); index++) { + current = (UndoableEdit) edits.elementAt(index); + current.redo(); + } // for: index + + } // redo() + + /** + * String representation + * @returns String representation + */ + public String toString() { + return null; // TODO + } // toString() + + /** + * undo + * @throws CannotUndoException TODO + */ + public void undo() throws CannotUndoException { + + // Variables + int index; + UndoableEdit current; + + // Loop through all contained UndoableEdits + for (index = edits.size() - 1; index >= 0; index--) { + current = (UndoableEdit) edits.elementAt(index); + current.undo(); + } // for: index + + } // undo() + + +} // CompoundEdit |
