bundles/org.simantics.spreadsheet.ui/src/org/simantics/spreadsheet/ui/TableDropTargetListener.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.spreadsheet.ui;
  13
  14 import java.awt.Point;
  15 import java.awt.datatransfer.DataFlavor;
  16 import java.awt.datatransfer.Transferable;
  17 import java.awt.datatransfer.UnsupportedFlavorException;
  18 import java.awt.dnd.DropTargetDragEvent;
  19 import java.awt.dnd.DropTargetDropEvent;
  20 import java.awt.dnd.DropTargetEvent;
  21 import java.io.IOException;
  22
  23 import javax.swing.JTable;
  24
  25 import org.simantics.spreadsheet.Adaptable;
  26 import org.simantics.spreadsheet.CellEditor;
  27 import org.simantics.spreadsheet.ClientModel;
  28
  29 public class TableDropTargetListener implements java.awt.dnd.DropTargetListener {
  30
  31     JTable table;
  32     Adaptable model;
  33     ClientModel clientModel;
  34
  35     public TableDropTargetListener(JTable table, Adaptable model, ClientModel clientModel) {
  36         this.table = table;
  37         this.model = model;
  38         this.clientModel = clientModel;
  39     }
  40
  41     public void dragEnter(DropTargetDragEvent dropTargetDragEvent) {
  42         dropTargetDragEvent.acceptDrag(dropTargetDragEvent.getDropAction());
  43         // Setup positioning info for auto-scrolling
  44 //    top = Math.abs(getLocation().y);
  45 //    bottom = top + getParent().getHeight();
  46 //    topRow = getClosestRowForLocation(0, top);
  47 //    bottomRow = getClosestRowForLocation(0, bottom);
  48 //    insets = new Insets(top + 10, 0, bottom - 10, getWidth());
  49     }
  50
  51     public void dragExit(DropTargetEvent dropTargetEvent) {
  52     }
  53
  54     public void dragOver(DropTargetDragEvent dropTargetDragEvent) {
  55     }
  56
  57     public void dropActionChanged(DropTargetDragEvent dropTargetDragEvent) {
  58     }
  59
  60     public synchronized void drop(final DropTargetDropEvent dropTargetDropEvent) {
  61
  62         Transferable tr = dropTargetDropEvent.getTransferable();
  63
  64         if (tr.isDataFlavorSupported(DataFlavor.stringFlavor)) {
  65
  66             try {
  67
  68                 dropTargetDropEvent.acceptDrop(dropTargetDropEvent.getDropAction());
  69
  70                 String data = (String) tr.getTransferData(DataFlavor.stringFlavor);
  71
  72                 Point point = dropTargetDropEvent.getLocation();
  73                 int row = table.rowAtPoint(point);
  74                 int column = table.columnAtPoint(point);
  75
  76                 CellEditor e = (CellEditor)model.getAdapter(CellEditor.class);
  77                 TextTableCellEditor editor = new TextTableCellEditor(row, column, "", e, clientModel);
  78                 editor.commit();
  79
  80             } catch (UnsupportedFlavorException e) {
  81                 // TODO Auto-generated catch block
  82                 e.printStackTrace();
  83             } catch (IOException e) {
  84                 // TODO Auto-generated catch block
  85                 e.printStackTrace();
  86             } catch (IllegalArgumentException e) {
  87                 // TODO Auto-generated catch block
  88                 e.printStackTrace();
  89             }
  90
  91         }
  92
  93     }
  94
  95 }