mirror of git://gcc.gnu.org/git/gcc.git
103 lines
3.6 KiB
Java
103 lines
3.6 KiB
Java
/* ViewportLayout.java --
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Copyright (C) 2002, 2004 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 java.awt.Component;
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import java.awt.Container;
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import java.awt.Dimension;
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import java.awt.LayoutManager;
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import java.awt.Point;
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import java.awt.Rectangle;
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import java.io.Serializable;
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/**
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* ViewportLayout
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* @author Andrew Selkirk
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* @author Graydon Hoare
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*/
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public class ViewportLayout implements LayoutManager, Serializable
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{
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static final long serialVersionUID = -788225906076097229L;
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public ViewportLayout()
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{
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}
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public void addLayoutComponent(String name, Component c)
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{
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}
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public void removeLayoutComponent(Component c)
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{
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}
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public Dimension preferredLayoutSize(Container parent)
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{
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JViewport vp = (JViewport)parent;
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Component view = vp.getView();
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if (view instanceof Scrollable)
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{
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Scrollable sc = (Scrollable) view;
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Dimension d = sc.getPreferredScrollableViewportSize();
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// System.err.println(this + ".preferredLayoutSize() : scrollable -> " + d);
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return d;
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}
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else
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return view.getPreferredSize();
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}
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public Dimension minimumLayoutSize(Container parent)
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{
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JViewport vp = (JViewport)parent;
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Component view = vp.getView();
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return view.getMinimumSize();
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}
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public void layoutContainer(Container parent)
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{
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JViewport vp = (JViewport)parent;
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Component view = vp.getView();
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Rectangle portBounds = vp.getBounds();
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Dimension viewMinimum = view.getMinimumSize();
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int width = Math.max(portBounds.width,
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viewMinimum.width);
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int height = Math.max(portBounds.height,
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viewMinimum.height);
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int x = Math.min(0, portBounds.width - width);
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int y = Math.min(0, portBounds.height - height);
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// System.err.println(this + ".layoutContainer() : width = " + width + ", height = " + height);
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vp.setViewPosition(new Point(x, y));
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vp.setViewSize(new Dimension(width, height));
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}
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}
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