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src/java.desktop/share/classes/sun/awt/NullComponentPeer.java

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   1 /*
   2  * Copyright (c) 2000, 2013, 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
  23  * questions.
  24  */
  25 
  26 package sun.awt;
  27 
  28 import java.awt.AWTException;
  29 import java.awt.BufferCapabilities;
  30 import java.awt.Color;
  31 import java.awt.Component;
  32 import java.awt.Cursor;
  33 import java.awt.Dimension;
  34 import java.awt.Font;
  35 import java.awt.FontMetrics;
  36 import java.awt.Graphics;
  37 import java.awt.GraphicsConfiguration;
  38 import java.awt.Image;
  39 import java.awt.Insets;
  40 import java.awt.MenuBar;
  41 import java.awt.Point;
  42 import java.awt.Event;
  43 import java.awt.event.PaintEvent;
  44 import java.awt.image.ColorModel;
  45 import java.awt.image.ImageObserver;
  46 import java.awt.image.ImageProducer;
  47 import java.awt.image.VolatileImage;
  48 import java.awt.peer.CanvasPeer;
  49 import java.awt.peer.LightweightPeer;
  50 import java.awt.peer.PanelPeer;
  51 import java.awt.peer.ComponentPeer;
  52 import java.awt.peer.ContainerPeer;
  53 import java.awt.Rectangle;
  54 import sun.java2d.pipe.Region;
  55 
  56 
  57 /**
  58  * Implements the LightweightPeer interface for use in lightweight components
  59  * that have no native window associated with them.  This gets created by
  60  * default in Component so that Component and Container can be directly


 161     // no native code
 162     }
 163 
 164     public void setForeground(Color c) {
 165     }
 166 
 167     public void setBackground(Color c) {
 168     }
 169 
 170     public void setFont(Font f) {
 171     }
 172 
 173     public void updateCursorImmediately() {
 174     }
 175 
 176     public void setCursor(Cursor cursor) {
 177     }
 178 
 179     public boolean requestFocus
 180         (Component lightweightChild, boolean temporary,
 181          boolean focusedWindowChangeAllowed, long time, CausedFocusEvent.Cause cause) {
 182         return false;
 183     }
 184 
 185     public Image createImage(ImageProducer producer) {
 186         return null;
 187     }
 188 
 189     public Image createImage(int width, int height) {
 190         return null;
 191     }
 192 
 193     public boolean prepareImage(Image img, int w, int h, ImageObserver o) {
 194         return false;
 195     }
 196 
 197     public int  checkImage(Image img, int w, int h, ImageObserver o) {
 198         return 0;
 199     }
 200 
 201     public Dimension preferredSize() {


   1 /*
   2  * Copyright (c) 2000, 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
  23  * questions.
  24  */
  25 
  26 package sun.awt;
  27 
  28 import java.awt.AWTException;
  29 import java.awt.BufferCapabilities;
  30 import java.awt.Color;
  31 import java.awt.Component;
  32 import java.awt.Cursor;
  33 import java.awt.Dimension;
  34 import java.awt.Font;
  35 import java.awt.FontMetrics;
  36 import java.awt.Graphics;
  37 import java.awt.GraphicsConfiguration;
  38 import java.awt.Image;
  39 import java.awt.Insets;
  40 import java.awt.event.FocusEvent.Cause;
  41 import java.awt.Point;
  42 import java.awt.Event;
  43 import java.awt.event.PaintEvent;
  44 import java.awt.image.ColorModel;
  45 import java.awt.image.ImageObserver;
  46 import java.awt.image.ImageProducer;
  47 import java.awt.image.VolatileImage;
  48 import java.awt.peer.CanvasPeer;
  49 import java.awt.peer.LightweightPeer;
  50 import java.awt.peer.PanelPeer;
  51 import java.awt.peer.ComponentPeer;
  52 import java.awt.peer.ContainerPeer;
  53 import java.awt.Rectangle;
  54 import sun.java2d.pipe.Region;
  55 
  56 
  57 /**
  58  * Implements the LightweightPeer interface for use in lightweight components
  59  * that have no native window associated with them.  This gets created by
  60  * default in Component so that Component and Container can be directly


 161     // no native code
 162     }
 163 
 164     public void setForeground(Color c) {
 165     }
 166 
 167     public void setBackground(Color c) {
 168     }
 169 
 170     public void setFont(Font f) {
 171     }
 172 
 173     public void updateCursorImmediately() {
 174     }
 175 
 176     public void setCursor(Cursor cursor) {
 177     }
 178 
 179     public boolean requestFocus
 180         (Component lightweightChild, boolean temporary,
 181          boolean focusedWindowChangeAllowed, long time, Cause cause) {
 182         return false;
 183     }
 184 
 185     public Image createImage(ImageProducer producer) {
 186         return null;
 187     }
 188 
 189     public Image createImage(int width, int height) {
 190         return null;
 191     }
 192 
 193     public boolean prepareImage(Image img, int w, int h, ImageObserver o) {
 194         return false;
 195     }
 196 
 197     public int  checkImage(Image img, int w, int h, ImageObserver o) {
 198         return 0;
 199     }
 200 
 201     public Dimension preferredSize() {


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