1 /*
2 * Copyright (c) 1995, 2007, 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
25 package java.awt.peer;
26
27 import java.awt.Canvas;
28 import java.awt.GraphicsConfiguration;
29
30 /**
31 * The peer interface for {@link Canvas}.
32 *
33 * The peer interfaces are intended only for use in porting
34 * the AWT. They are not intended for use by application
35 * developers, and developers should not implement peers
36 * nor invoke any of the peer methods directly on the peer
37 * instances.
38 */
39 public interface CanvasPeer extends ComponentPeer {
40 /**
41 * Requests a GC that best suits this Canvas. The returned GC may differ
42 * from the requested GC passed as the argument to this method. This method
43 * must return a non-null value (given the argument is non-null as well).
44 *
45 * @since 1.7
46 */
47 GraphicsConfiguration getAppropriateGraphicsConfiguration(
48 GraphicsConfiguration gc);
49 }
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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
25 package java.awt.peer;
26
27 import java.awt.Canvas;
28 import java.awt.GraphicsConfiguration;
29
30 /**
31 * The peer interface for {@link Canvas}.
32 *
33 * The peer interfaces are intended only for use in porting
34 * the AWT. They are not intended for use by application
35 * developers, and developers should not implement peers
36 * nor invoke any of the peer methods directly on the peer
37 * instances.
38 */
39 public interface CanvasPeer extends ComponentPeer {
40 /**
41 * Requests a GC that best suits this Canvas. The returned GC may differ
42 * from the requested GC passed as the argument to this method. This method
43 * must return a non-null value (given the argument is non-null as well).
44 *
45 * @param gc the requested graphics configuration
46 * @return a graphics configuration that best suits this Canvas
47 * @since 1.7
48 */
49 GraphicsConfiguration getAppropriateGraphicsConfiguration(
50 GraphicsConfiguration gc);
51 }
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