src/share/classes/java/awt/peer/CanvasPeer.java

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   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 }
   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 }