| /************************************************************** |
| * |
| * 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; |
| |
| import java.awt.Component; |
| import java.awt.Cursor; |
| import java.awt.GridBagLayout; |
| import java.awt.GridBagConstraints; |
| import java.awt.Point; |
| import java.awt.event.MouseListener; |
| import java.awt.event.MouseMotionListener; |
| import java.awt.event.MouseEvent; |
| import javax.swing.JComponent; |
| |
| class LayoutManager |
| implements MouseListener, |
| MouseMotionListener |
| { |
| public LayoutManager (JComponent aLayoutedComponent) |
| { |
| maLayoutedComponent = aLayoutedComponent; |
| maDraggedView = null; |
| mbInsertionPending = false; |
| } |
| |
| public void mouseClicked (MouseEvent aEvent) |
| { |
| System.out.println (aEvent); |
| } |
| public void mousePressed (MouseEvent aEvent) |
| { |
| mnOldY = aEvent.getPoint().y; |
| } |
| public void mouseReleased (MouseEvent aEvent) |
| { |
| if (mbInsertionPending) |
| { |
| InsertView (maDraggedView, aEvent.getPoint().y); |
| mbInsertionPending = false; |
| maDraggedView = null; |
| } |
| } |
| public void mouseEntered (MouseEvent aEvent) |
| { |
| } |
| public void mouseExited (MouseEvent aEvent) |
| { |
| if (mbInsertionPending) |
| { |
| InsertView (maDraggedView, mnOldY); |
| mbInsertionPending = false; |
| maDraggedView = null; |
| } |
| } |
| public void mouseDragged (MouseEvent aEvent) |
| { |
| int dy = mnOldY - aEvent.getPoint().y; |
| GridBagLayout aLayout = (GridBagLayout)maLayoutedComponent.getLayout(); |
| if ( ! mbInsertionPending && dy != 0) |
| { |
| maDraggedView = RemoveView (mnOldY); |
| if (maDraggedView != null) |
| mbInsertionPending = true; |
| } |
| } |
| public void mouseMoved (MouseEvent aEvent) |
| { |
| } |
| |
| |
| |
| |
| private ObjectView RemoveView (int y) |
| { |
| ObjectView aView = null; |
| GridBagLayout aLayout = (GridBagLayout)maLayoutedComponent.getLayout(); |
| |
| Point aGridLocation = aLayout.location (10,y); |
| Component[] aComponentList = maLayoutedComponent.getComponents(); |
| System.out.println ("removing view at " + aGridLocation); |
| for (int i=0; i<aComponentList.length && aView==null; i++) |
| { |
| GridBagConstraints aConstraints = aLayout.getConstraints ( |
| aComponentList[i]); |
| if (aConstraints.gridy == aGridLocation.y) |
| aView = (ObjectView)aComponentList[i]; |
| } |
| maNormalCursor = maLayoutedComponent.getCursor(); |
| if (aView != null) |
| { |
| System.out.println ("removing view at " + aGridLocation.y); |
| maLayoutedComponent.setCursor (new Cursor (Cursor.MOVE_CURSOR)); |
| maLayoutedComponent.remove (aView); |
| maLayoutedComponent.validate(); |
| maLayoutedComponent.repaint(); |
| } |
| |
| return aView; |
| } |
| |
| private void InsertView (ObjectView aView, int y) |
| { |
| if (aView != null) |
| { |
| GridBagLayout aLayout = (GridBagLayout)maLayoutedComponent.getLayout(); |
| Point aGridLocation = aLayout.location (0,y); |
| Component[] aComponentList = maLayoutedComponent.getComponents(); |
| System.out.println ("new position is " + aGridLocation.y); |
| for (int i=0; i<aComponentList.length; i++) |
| { |
| GridBagConstraints aConstraints = aLayout.getConstraints ( |
| aComponentList[i]); |
| if (aConstraints.gridy >= aGridLocation.y) |
| { |
| if (aConstraints.gridy == aGridLocation.y) |
| maLayoutedComponent.add (maDraggedView, aConstraints); |
| aConstraints.gridy += 1; |
| aLayout.setConstraints (aComponentList[i], aConstraints); |
| } |
| } |
| maLayoutedComponent.validate(); |
| maLayoutedComponent.repaint(); |
| } |
| maLayoutedComponent.setCursor (maNormalCursor); |
| } |
| |
| |
| |
| |
| private JComponent maLayoutedComponent; |
| private ObjectView maDraggedView; |
| private int mnOldY; |
| private boolean mbInsertionPending; |
| private Cursor maNormalCursor; |
| } |