1 /*
2 * Copyright (c) 1995, 2014, Oracle and/or its affiliates. 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
53
54 /**
55 * Constructs a new Canvas.
56 */
57 public Canvas() {
58 }
59
60 /**
61 * Constructs a new Canvas given a GraphicsConfiguration object.
62 *
63 * @param config a reference to a GraphicsConfiguration object.
64 *
65 * @see GraphicsConfiguration
66 */
67 public Canvas(GraphicsConfiguration config) {
68 this();
69 setGraphicsConfiguration(config);
70 }
71
72 @Override
73 @SuppressWarnings("deprecation")
74 void setGraphicsConfiguration(GraphicsConfiguration gc) {
75 synchronized(getTreeLock()) {
76 CanvasPeer peer = (CanvasPeer)getPeer();
77 if (peer != null) {
78 gc = peer.getAppropriateGraphicsConfiguration(gc);
79 }
80 super.setGraphicsConfiguration(gc);
81 }
82 }
83
84 /**
85 * Construct a name for this component. Called by getName() when the
86 * name is null.
87 */
88 String constructComponentName() {
89 synchronized (Canvas.class) {
90 return base + nameCounter++;
91 }
92 }
93
94 /**
95 * Creates the peer of the canvas. This peer allows you to change the
96 * user interface of the canvas without changing its functionality.
|
1 /*
2 * Copyright (c) 1995, 2015, Oracle and/or its affiliates. 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
53
54 /**
55 * Constructs a new Canvas.
56 */
57 public Canvas() {
58 }
59
60 /**
61 * Constructs a new Canvas given a GraphicsConfiguration object.
62 *
63 * @param config a reference to a GraphicsConfiguration object.
64 *
65 * @see GraphicsConfiguration
66 */
67 public Canvas(GraphicsConfiguration config) {
68 this();
69 setGraphicsConfiguration(config);
70 }
71
72 @Override
73 void setGraphicsConfiguration(GraphicsConfiguration gc) {
74 synchronized(getTreeLock()) {
75 CanvasPeer peer = (CanvasPeer) this.peer;
76 if (peer != null) {
77 gc = peer.getAppropriateGraphicsConfiguration(gc);
78 }
79 super.setGraphicsConfiguration(gc);
80 }
81 }
82
83 /**
84 * Construct a name for this component. Called by getName() when the
85 * name is null.
86 */
87 String constructComponentName() {
88 synchronized (Canvas.class) {
89 return base + nameCounter++;
90 }
91 }
92
93 /**
94 * Creates the peer of the canvas. This peer allows you to change the
95 * user interface of the canvas without changing its functionality.
|