Wrapper Layout : Custom Layout « Swing « Java Tutorial

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Java Tutorial » Swing » Custom Layout 
14. 97. 11. Wrapper Layout
/*
    GNU LESSER GENERAL PUBLIC LICENSE
    Copyright (C) 2006 The Lobo Project

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Contact info: lobochief@users.sourceforge.net
*/
/*
 * Created on Mar 19, 2005
 */

import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.LayoutManager;

/**
 @author J. H. S.
 */
public class WrapperLayout implements LayoutManager {
    /* (non-Javadoc)
     * @see java.awt.LayoutManager#addLayoutComponent(java.lang.String, java.awt.Component)
     */
    public void addLayoutComponent(String arg0, Component arg1) {
    }

    /* (non-Javadoc)
     * @see java.awt.LayoutManager#removeLayoutComponent(java.awt.Component)
     */
    public void removeLayoutComponent(Component arg0) {
    }

    /* (non-Javadoc)
     * @see java.awt.LayoutManager#preferredLayoutSize(java.awt.Container)
     */
    public Dimension preferredLayoutSize(Container arg0) {
      java.awt.Insets insets = arg0.getInsets();
        int count = arg0.getComponentCount();
        if(count > 0) {
            Dimension d = arg0.getComponent(0).getPreferredSize();
            return new Dimension(d.width + insets.left + insets.right,
                           d.height + insets.top + insets.bottom);
        }
        else {
            return new Dimension(insets.left + insets.right, insets.top + insets.bottom);
        }
    }

    /* (non-Javadoc)
     * @see java.awt.LayoutManager#minimumLayoutSize(java.awt.Container)
     */
    public Dimension minimumLayoutSize(Container arg0) {
      java.awt.Insets insets = arg0.getInsets();
        int count = arg0.getComponentCount();
        if(count > 0) {
            Dimension d = arg0.getComponent(0).getMinimumSize();
            return new Dimension(d.width + insets.left + insets.right,
               d.height + insets.top + insets.bottom);
        }
        else {
            return new Dimension(insets.left + insets.right, insets.top + insets.bottom);
        }
    }

    /* (non-Javadoc)
     * @see java.awt.LayoutManager#layoutContainer(java.awt.Container)
     */
    public void layoutContainer(Container arg0) {
        int count = arg0.getComponentCount();
        if(count > 0) {
            Component child = arg0.getComponent(0)
            java.awt.Insets insets = arg0.getInsets();
            child.setBounds(insets.left, insets.top, arg0.getWidth() - insets.left - insets.right, arg0.getHeight() - insets.top - insets.bottom);
        }
    }
    
    private static WrapperLayout instance = new WrapperLayout();
    
    public static WrapperLayout getInstance() {
      return instance;
    }
}
14. 97. Custom Layout
14. 97. 1. Custom Layout: DiagonalLayoutCustom Layout: DiagonalLayout
14. 97. 2. GraphPaperLayout implements LayoutManager2
14. 97. 3. Circle Layout
14. 97. 4. This LayoutManager arranges the components into a column. Components are always given their preferred size
14. 97. 5. Compents are laid out in a circle.
14. 97. 6. Specialised layout manager for a grid of components.
14. 97. 7. Stack Layout, uses an orientation to determine if the contents should be arranged horizontally or vertically.
14. 97. 8. A layout manager that displays a single component in the center of its container.
14. 97. 9. A simple layoutmanager to overlay all components of a parent.
14. 97. 10. A layout manager that lays out components along a central axis
14. 97. 11. Wrapper Layout
14. 97. 12. Center Layout
14. 97. 13. DividerLayout is layout that divides two components with the column of actions
14. 97. 14. X Y Layout
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