/* * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package javax.swing; import java.awt.Component;import java.awt.Container;import java.awt.Rectangle;import java.awt.event.PaintEvent;import java.security.AccessController;import sun.awt.AppContext;import sun.awt.SunToolkit;import sun.awt.event.IgnorePaintEvent;import sun.security.action.GetBooleanAction;import sun.security.action.GetPropertyAction; /** * Swing's PaintEventDispatcher. If the component specified by the PaintEvent * is a top level Swing component (JFrame, JWindow, JDialog, JApplet), this * will forward the request to the RepaintManager for eventual painting. * */class SwingPaintEventDispatcher extends sun.awt.PaintEventDispatcher { private static final boolean SHOW_FROM_DOUBLE_BUFFER; private static final boolean ERASE_BACKGROUND; static { SHOW_FROM_DOUBLE_BUFFER = "true".equals(AccessController.doPrivileged( new GetPropertyAction("swing.showFromDoubleBuffer", "true"))); ERASE_BACKGROUND = AccessController.doPrivileged( new GetBooleanAction("swing.nativeErase")); } public PaintEvent createPaintEvent(Component component, int x, int y, int w, int h) { if (component instanceof RootPaneContainer) { AppContext appContext = SunToolkit.targetToAppContext(component); RepaintManager rm = RepaintManager.currentManager(appContext); if (!SHOW_FROM_DOUBLE_BUFFER || !rm.show((Container)component, x, y, w, h)) { rm.nativeAddDirtyRegion(appContext, (Container)component, x, y, w, h); } // For backward compatibility generate an empty paint // event. Not doing this broke parts of Netbeans. return new IgnorePaintEvent(component, PaintEvent.PAINT, new Rectangle(x, y, w, h)); } else if (component instanceof SwingHeavyWeight) { AppContext appContext = SunToolkit.targetToAppContext(component); RepaintManager rm = RepaintManager.currentManager(appContext); rm.nativeAddDirtyRegion(appContext, (Container)component, x, y, w, h); return new IgnorePaintEvent(component, PaintEvent.PAINT, new Rectangle(x, y, w, h)); } return super.createPaintEvent(component, x, y, w, h); } public boolean shouldDoNativeBackgroundErase(Component c) { return ERASE_BACKGROUND || !(c instanceof RootPaneContainer); } public boolean queueSurfaceDataReplacing(Component c, Runnable r) { if (c instanceof RootPaneContainer) { AppContext appContext = SunToolkit.targetToAppContext(c); RepaintManager.currentManager(appContext). nativeQueueSurfaceDataRunnable(appContext, c, r); return true; } return super.queueSurfaceDataReplacing(c, r); }}
/*
* Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javax.swing;
import java.awt.Component;
import java.awt.Container;
import java.awt.Rectangle;
import java.awt.event.PaintEvent;
import java.security.AccessController;
import sun.awt.AppContext;
import sun.awt.SunToolkit;
import sun.awt.event.IgnorePaintEvent;
import sun.security.action.GetBooleanAction;
import sun.security.action.GetPropertyAction;
/**
* Swing's PaintEventDispatcher. If the component specified by the PaintEvent
* is a top level Swing component (JFrame, JWindow, JDialog, JApplet), this
* will forward the request to the RepaintManager for eventual painting.
*
*/
class SwingPaintEventDispatcher extends sun.awt.PaintEventDispatcher {
private static final boolean SHOW_FROM_DOUBLE_BUFFER;
private static final boolean ERASE_BACKGROUND;
static {
SHOW_FROM_DOUBLE_BUFFER = "true".equals(AccessController.doPrivileged(
new GetPropertyAction("swing.showFromDoubleBuffer", "true")));
ERASE_BACKGROUND = AccessController.doPrivileged(
new GetBooleanAction("swing.nativeErase"));
}
public PaintEvent createPaintEvent(Component component, int x, int y,
int w, int h) {
if (component instanceof RootPaneContainer) {
AppContext appContext = SunToolkit.targetToAppContext(component);
RepaintManager rm = RepaintManager.currentManager(appContext);
if (!SHOW_FROM_DOUBLE_BUFFER ||
!rm.show((Container)component, x, y, w, h)) {
rm.nativeAddDirtyRegion(appContext, (Container)component,
x, y, w, h);
}
// For backward compatibility generate an empty paint
// event. Not doing this broke parts of Netbeans.
return new IgnorePaintEvent(component, PaintEvent.PAINT,
new Rectangle(x, y, w, h));
}
else if (component instanceof SwingHeavyWeight) {
AppContext appContext = SunToolkit.targetToAppContext(component);
RepaintManager rm = RepaintManager.currentManager(appContext);
rm.nativeAddDirtyRegion(appContext, (Container)component,
x, y, w, h);
return new IgnorePaintEvent(component, PaintEvent.PAINT,
new Rectangle(x, y, w, h));
}
return super.createPaintEvent(component, x, y, w, h);
}
public boolean shouldDoNativeBackgroundErase(Component c) {
return ERASE_BACKGROUND || !(c instanceof RootPaneContainer);
}
public boolean queueSurfaceDataReplacing(Component c, Runnable r) {
if (c instanceof RootPaneContainer) {
AppContext appContext = SunToolkit.targetToAppContext(c);
RepaintManager.currentManager(appContext).
nativeQueueSurfaceDataRunnable(appContext, c, r);
return true;
}
return super.queueSurfaceDataReplacing(c, r);
}
}