JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2013, 2017, 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
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package sun.awt.windows;

import java.awt.Component;
import java.awt.Graphics;
import java.awt.dnd.DropTarget;
import java.awt.event.ComponentEvent;
import java.awt.event.MouseEvent;

import sun.awt.LightweightFrame;
import sun.awt.OverrideNativeWindowHandle;
import sun.swing.JLightweightFrame;
import sun.swing.SwingAccessor;

public class WLightweightFramePeer extends WFramePeer implements OverrideNativeWindowHandle {

    public WLightweightFramePeer(LightweightFrame target) {
        super(target);
    }

    private LightweightFrame getLwTarget() {
        return (LightweightFrame)target;
    }

    @Override
    public Graphics getGraphics() {
        return getLwTarget().getGraphics();
    }

    private native void overrideNativeHandle(long hwnd);

    @Override
    public void overrideWindowHandle(final long handle) {
        overrideNativeHandle(handle);
    }

    @Override
    public void show() {
        super.show();
        postEvent(new ComponentEvent((Component)getTarget(), ComponentEvent.COMPONENT_SHOWN));
    }

    @Override
    public void hide() {
        super.hide();
        postEvent(new ComponentEvent((Component)getTarget(), ComponentEvent.COMPONENT_HIDDEN));
    }

    @Override
    public void reshape(int x, int y, int width, int height) {
        super.reshape(x, y, width, height);
        postEvent(new ComponentEvent((Component) getTarget(), ComponentEvent.COMPONENT_MOVED));
        postEvent(new ComponentEvent((Component) getTarget(), ComponentEvent.COMPONENT_RESIZED));
    }

    @Override
    public void handleEvent(java.awt.AWTEvent e) {
        if (e.getID() == MouseEvent.MOUSE_PRESSED) {
            emulateActivation(true);
        }
        super.handleEvent(e);
    }

    @Override
    public void grab() {
        getLwTarget().grabFocus();
    }

    @Override
    public void ungrab() {
        getLwTarget().ungrabFocus();
    }

    @Override
    public void updateCursorImmediately() {

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