| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| package org.openoffice.accessibility.awb.view.text; |
| |
| import java.lang.Integer; |
| import java.util.Vector; |
| import javax.swing.SpinnerModel; |
| import javax.swing.event.ChangeEvent; |
| import javax.swing.event.ChangeListener; |
| |
| import com.sun.star.accessibility.XAccessibleText; |
| import com.sun.star.lang.IndexOutOfBoundsException; |
| |
| |
| /** A simple model for JSpinner objects that clips the spinner values to valid |
| text indices. |
| */ |
| public class CaretSpinnerModel |
| implements SpinnerModel |
| { |
| public CaretSpinnerModel (XAccessibleText xText) |
| { |
| mxText = xText; |
| maListeners = new Vector (); |
| } |
| |
| public void addChangeListener (ChangeListener aListener) |
| { |
| if (aListener != null) |
| maListeners.add (aListener); |
| } |
| |
| public void removeChangeListener (ChangeListener aListener) |
| { |
| maListeners.removeElement (aListener); |
| } |
| |
| public Object getNextValue () |
| { |
| if (mxText != null) |
| { |
| int nPosition = mxText.getCaretPosition(); |
| if (nPosition+1 <= mxText.getCharacterCount()) |
| return new Integer (nPosition+1); |
| } |
| return null; |
| } |
| |
| public Object getPreviousValue () |
| { |
| if (mxText != null) |
| { |
| int nPosition = mxText.getCaretPosition(); |
| if (nPosition > 0) |
| return new Integer (nPosition-1); |
| } |
| return null; |
| } |
| |
| public Object getValue () |
| { |
| if (mxText != null) |
| return new Integer (mxText.getCaretPosition()); |
| else |
| return null; |
| } |
| |
| public void setValue (Object aValue) |
| { |
| if (mxText != null) |
| if (aValue instanceof Integer) |
| { |
| try |
| { |
| if( ((Integer)aValue).intValue() != mxText.getCaretPosition() ) |
| mxText.setCaretPosition (((Integer)aValue).intValue()); |
| } |
| catch (IndexOutOfBoundsException aException) |
| { |
| } |
| } |
| } |
| |
| /** Call this method when the caret position has changes so that the model |
| can inform its listeners about it. |
| */ |
| public void Update () |
| { |
| ChangeEvent aEvent = new ChangeEvent (this); |
| for (int i=0; i<maListeners.size(); i++) |
| ((ChangeListener)maListeners.elementAt(i)).stateChanged (aEvent); |
| } |
| |
| private XAccessibleText mxText; |
| private Integer maValue; |
| private Vector maListeners; |
| } |