/*************************************************************************
*
* $RCSfile: LayoutManager.java,v $
*
* $Revision: 1.1 $
*
* last change: $Author: af $ $Date: 2003/06/13 16:30:34 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
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;
}