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| 1 | +/******************************************************************************* |
| 2 | + * Java2Script Pacemaker (http://j2s.sourceforge.net) |
| 3 | + * |
| 4 | + * Copyright (c) 2006 ognize.com and others. |
| 5 | + * All rights reserved. This program and the accompanying materials |
| 6 | + * are made available under the terms of the Eclipse Public License v1.0 |
| 7 | + * which accompanies this distribution, and is available at |
| 8 | + * http://www.eclipse.org/legal/epl-v10.html |
| 9 | + * |
| 10 | + * Contributors: |
| 11 | + * ognize.com - initial API and implementation |
| 12 | + *******************************************************************************/ |
| 13 | + |
| 14 | +package org.eclipse.swt.internal.dnd; |
| 15 | + |
| 16 | +import org.eclipse.swt.graphics.Point; |
| 17 | +import org.eclipse.swt.internal.xhtml.Element; |
| 18 | +import org.eclipse.swt.internal.xhtml.document; |
| 19 | + |
| 20 | + |
| 21 | +/** |
| 22 | + * @author Soheil Hassas Yeganeh |
| 23 | + * |
| 24 | + * 2006-7-1 |
| 25 | + */ |
| 26 | +public class TableColumnDND extends DragAdapter { |
| 27 | + protected int sourceX = 0; |
| 28 | + protected Element thumb; |
| 29 | + public boolean dragBegan(DragEvent e) { |
| 30 | + thumb = document.createElement ("DIV"); |
| 31 | + String cssName = e.sourceElement.className; |
| 32 | + thumb.className = cssName; |
| 33 | + if (cssName != null && cssName.indexOf ("sash-mouse-down") == -1) { |
| 34 | + thumb.className += " sash-mouse-down"; |
| 35 | + } |
| 36 | + thumb.style.left = e.sourceElement.style.left; |
| 37 | + thumb.style.top = e.sourceElement.style.top; |
| 38 | + thumb.style.width = e.sourceElement.style.width; |
| 39 | + thumb.style.height = e.sourceElement.style.height; |
| 40 | + thumb.onselectstart = DNDUtils.onselectstart; |
| 41 | + if (e.sourceElement.nextSibling != null) { |
| 42 | + e.sourceElement.parentNode.insertBefore (thumb, |
| 43 | + e.sourceElement.nextSibling); |
| 44 | + } else { |
| 45 | + e.sourceElement.parentNode.appendChild (thumb); |
| 46 | + } |
| 47 | + |
| 48 | + this.sourceX = Integer.parseInt (e.sourceElement.style.left); |
| 49 | + /* first time, set start location to current location */ |
| 50 | + e.startX = e.currentX; |
| 51 | + return true; |
| 52 | + } |
| 53 | + public boolean dragCanceled(DragEvent e) { |
| 54 | + clean(); |
| 55 | + return true; |
| 56 | + } |
| 57 | + |
| 58 | + public boolean dragEnded(DragEvent e) { |
| 59 | + clean(); |
| 60 | + return true; |
| 61 | + } |
| 62 | + |
| 63 | + protected void clean() { |
| 64 | + thumb.style.display = "none"; |
| 65 | + document.body.style.cursor = "auto"; |
| 66 | + thumb.parentNode.removeChild(thumb); |
| 67 | + } |
| 68 | + |
| 69 | + protected Point currentLocation(DragEvent e) { |
| 70 | + int xx = this.sourceX + e.deltaX (); |
| 71 | + |
| 72 | + int gWidth = Integer.parseInt(e.sourceElement.parentNode.style.width); |
| 73 | + /* |
| 74 | + * On mozilla, the mousemove event can contain mousemove |
| 75 | + * outside the browser window, so make bound for the dragging. |
| 76 | + */ |
| 77 | + int dWidth = Integer.parseInt(e.sourceElement.style.width); |
| 78 | + if (xx < 0) { |
| 79 | + xx = 0; |
| 80 | + } else if (xx > gWidth - dWidth - 2) { |
| 81 | + xx = gWidth - dWidth - 2; |
| 82 | + } |
| 83 | + return new Point(xx, 0); |
| 84 | + } |
| 85 | + |
| 86 | + public boolean dragging(DragEvent e) { |
| 87 | + document.body.style.cursor = "e-resize"; |
| 88 | + thumb.style.cursor = "e-resize"; |
| 89 | + thumb.style.left = currentLocation(e).x + "px"; |
| 90 | + return true; |
| 91 | + } |
| 92 | + |
| 93 | + |
| 94 | +} |
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