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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 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;
+}