| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.awt; |
| 27 | |
| 28 | /** |
| 29 | * This interface can be implemented on a Graphics object to allow |
| 30 | * the lightweight component code to permanently install a rectangular |
| 31 | * maximum clip that cannot be extended with setClip and which works in |
| 32 | * conjunction with the hit() and getTransform() methods of Graphics2D |
| 33 | * to make it appear as if there really was a component with these |
| 34 | * dimensions. |
| 35 | */ |
| 36 | public interface ConstrainableGraphics { |
| 37 | /** |
| 38 | * Constrain this graphics object to have a permanent device space |
| 39 | * origin of (x, y) and a permanent maximum clip of (x,y,w,h). |
| 40 | * Calling this method is roughly equivalent to: |
| 41 | * g.translate(x, y); |
| 42 | * g.clipRect(0, 0, w, h); |
| 43 | * except that the clip can never be extended outside of these |
| 44 | * bounds, even with setClip() and for the fact that the (x,y) |
| 45 | * become a new device space coordinate origin. |
| 46 | * |
| 47 | * These methods are recursive so that you can further restrict |
| 48 | * the object by calling the constrain() method more times, but |
| 49 | * you can never enlarge its restricted maximum clip. |
| 50 | */ |
| 51 | public void constrain(int x, int y, int w, int h); |
| 52 | } |