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137 lines
3.0 KiB
Java
137 lines
3.0 KiB
Java
/* JViewport.java --
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing;
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import javax.swing.plaf.*;
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import java.awt.*;
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public class JViewport extends JComponent
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{
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Component c;
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JViewport()
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{
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setOpaque(true);
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updateUI();
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}
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void setView(Component c)
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{
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if (this.c != null)
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remove(c);
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this.c = c;
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add(c);
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}
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public String getUIClassID()
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{
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return "JViewport";
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}
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public void updateUI()
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{
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ViewportUI vp = (ViewportUI) UIManager.getUI(this);
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setUI(vp);
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}
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Container GetHeavy(Container parent)
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{
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if (parent == null)
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return null;
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while (isLightweightComponent(parent))
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{
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Container p = parent.getParent();
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if (p == null)
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{
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System.out.println("GetHeavy FAILED, no heavy weight component found");
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return parent;
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}
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parent = p;
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}
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return parent;
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}
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public void paint(Graphics g)
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{
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paintChildren(g);
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System.out.println("XXXXXXXXXXXXXXXXXXXXXXXXXXXX JViewport -----> paint()");
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Container parent = GetHeavy(getParent());
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System.out.println("parent = " + parent + ", " + getParent());
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//parent.paint();
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Graphics wg = parent.getGraphics();
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int x = 0;
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int y = 0;
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int w = getWidth();
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int h = getHeight();
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Rectangle r = new Rectangle(x, y, w, h);
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int ox = 0;
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int oy = 0;
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wg.copyArea(r.x,
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r.y,
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r.width,
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r.height,
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ox,
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oy);
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wg.dispose();
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}
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}
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