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

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   1 /*
   2  * Copyright (c) 1999, 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


  30 import sun.util.logging.PlatformLogger;
  31 
  32 public abstract class SunGraphicsCallback {
  33     public static final int HEAVYWEIGHTS = 0x1;
  34     public static final int LIGHTWEIGHTS = 0x2;
  35     public static final int TWO_PASSES = 0x4;
  36 
  37     private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.SunGraphicsCallback");
  38 
  39     public abstract void run(Component comp, Graphics cg);
  40 
  41     protected void constrainGraphics(Graphics g, Rectangle bounds) {
  42         if (g instanceof ConstrainableGraphics) {
  43             ((ConstrainableGraphics)g).constrain(bounds.x, bounds.y, bounds.width, bounds.height);
  44         } else {
  45             g.translate(bounds.x, bounds.y);
  46         }
  47         g.clipRect(0, 0, bounds.width, bounds.height);
  48     }
  49 
  50     @SuppressWarnings("deprecation")
  51     public final void runOneComponent(Component comp, Rectangle bounds,
  52                                       Graphics g, Shape clip,
  53                                       int weightFlags) {
  54         if (comp == null || comp.getPeer() == null || !comp.isVisible()) {
  55             return;
  56         }
  57         boolean lightweight = comp.isLightweight();
  58         if ((lightweight && (weightFlags & LIGHTWEIGHTS) == 0) ||
  59             (!lightweight && (weightFlags & HEAVYWEIGHTS) == 0)) {
  60             return;
  61         }
  62 
  63         if (bounds == null) {
  64             bounds = comp.getBounds();
  65         }
  66 
  67         if (clip == null || clip.intersects(bounds)) {
  68             Graphics cg = g.create();
  69             try {
  70                 constrainGraphics(cg, bounds);
  71                 cg.setFont(comp.getFont());
  72                 cg.setColor(comp.getForeground());
  73                 if (cg instanceof Graphics2D) {
  74                     ((Graphics2D)cg).setBackground(comp.getBackground());


   1 /*
   2  * Copyright (c) 1999, 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


  30 import sun.util.logging.PlatformLogger;
  31 
  32 public abstract class SunGraphicsCallback {
  33     public static final int HEAVYWEIGHTS = 0x1;
  34     public static final int LIGHTWEIGHTS = 0x2;
  35     public static final int TWO_PASSES = 0x4;
  36 
  37     private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.SunGraphicsCallback");
  38 
  39     public abstract void run(Component comp, Graphics cg);
  40 
  41     protected void constrainGraphics(Graphics g, Rectangle bounds) {
  42         if (g instanceof ConstrainableGraphics) {
  43             ((ConstrainableGraphics)g).constrain(bounds.x, bounds.y, bounds.width, bounds.height);
  44         } else {
  45             g.translate(bounds.x, bounds.y);
  46         }
  47         g.clipRect(0, 0, bounds.width, bounds.height);
  48     }
  49 

  50     public final void runOneComponent(Component comp, Rectangle bounds,
  51                                       Graphics g, Shape clip,
  52                                       int weightFlags) {
  53         if (comp == null || !comp.isDisplayable() || !comp.isVisible()) {
  54             return;
  55         }
  56         boolean lightweight = comp.isLightweight();
  57         if ((lightweight && (weightFlags & LIGHTWEIGHTS) == 0) ||
  58             (!lightweight && (weightFlags & HEAVYWEIGHTS) == 0)) {
  59             return;
  60         }
  61 
  62         if (bounds == null) {
  63             bounds = comp.getBounds();
  64         }
  65 
  66         if (clip == null || clip.intersects(bounds)) {
  67             Graphics cg = g.create();
  68             try {
  69                 constrainGraphics(cg, bounds);
  70                 cg.setFont(comp.getFont());
  71                 cg.setColor(comp.getForeground());
  72                 if (cg instanceof Graphics2D) {
  73                     ((Graphics2D)cg).setBackground(comp.getBackground());