| 1 | // Copyright 2004-2007 Jean-Francois Poilpret |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package net.sourceforge.hivegui.docking; |
| 16 | |
| 17 | import java.awt.Component; |
| 18 | import java.awt.Cursor; |
| 19 | import java.awt.Dimension; |
| 20 | import java.awt.Point; |
| 21 | import java.awt.Toolkit; |
| 22 | import java.util.HashMap; |
| 23 | import java.util.Map; |
| 24 | |
| 25 | import javax.swing.ImageIcon; |
| 26 | |
| 27 | import org.flexdock.docking.DockingConstants; |
| 28 | import org.flexdock.docking.DockingPort; |
| 29 | import org.jdesktop.application.ApplicationContext; |
| 30 | import org.jdesktop.application.ResourceMap; |
| 31 | |
| 32 | import net.sourceforge.hivegui.component.IconTools; |
| 33 | |
| 34 | public class CursorTracker implements DockingConstants |
| 35 | { |
| 36 | public void setContext(ApplicationContext context) |
| 37 | { |
| 38 | ResourceMap map = context.getResourceMap(CursorTracker.class); |
| 39 | // Create cursors |
| 40 | _none = createCursor(map, "region.none"); |
| 41 | _regionCursor.put(NORTH_REGION, createCursor(map, "region.north")); |
| 42 | _regionCursor.put(SOUTH_REGION, createCursor(map, "region.south")); |
| 43 | _regionCursor.put(WEST_REGION, createCursor(map, "region.west")); |
| 44 | _regionCursor.put(EAST_REGION, createCursor(map, "region.east")); |
| 45 | _regionCursor.put(CENTER_REGION, createCursor(map, "region.center")); |
| 46 | } |
| 47 | |
| 48 | public boolean trackCursor( Component dockable, |
| 49 | DockingPort port, |
| 50 | String targetRegion, |
| 51 | Component paintingTarget) |
| 52 | { |
| 53 | if (UNKNOWN_REGION.equals(targetRegion)) |
| 54 | { |
| 55 | return false; |
| 56 | } |
| 57 | if (!port.isDockingAllowed(dockable, targetRegion)) |
| 58 | { |
| 59 | paintingTarget.setCursor(_none); |
| 60 | return false; |
| 61 | } |
| 62 | paintingTarget.setCursor(_regionCursor.get(targetRegion)); |
| 63 | return true; |
| 64 | } |
| 65 | |
| 66 | static private Cursor createCursor(ResourceMap map, String name) |
| 67 | { |
| 68 | ImageIcon icon = map.getImageIcon(name + ".icon"); |
| 69 | Toolkit toolkit = Toolkit.getDefaultToolkit(); |
| 70 | Dimension dim = toolkit.getBestCursorSize(icon.getIconWidth(), icon.getIconHeight()); |
| 71 | icon = IconTools.centerIcon(icon, dim.width, dim.height); |
| 72 | Point hotSpot = new Point(dim.width / 2, dim.height / 2); |
| 73 | return toolkit.createCustomCursor(icon.getImage(), hotSpot, name); |
| 74 | } |
| 75 | |
| 76 | private Cursor _none; |
| 77 | private Map<String, Cursor> _regionCursor = new HashMap<String, Cursor>(); |
| 78 | } |