Java JComponent Size getValidatedSize(Component c, int sizeflag)

Description

get Validated Size

License

Open Source License

Declaration

public static Dimension getValidatedSize(Component c, int sizeflag) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2010 BSI Business Systems Integration AG.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:/*from   w  ww  .  j av  a 2s  . c o m*/
 *     BSI Business Systems Integration AG - initial API and implementation
 ******************************************************************************/

import java.awt.Component;

import java.awt.Dimension;

import javax.swing.JLabel;

import javax.swing.text.View;

public class Main {
    public static final int MIN = 0;
    public static final int PREF = 1;
    public static final int MAX = 2;

    public static Dimension getValidatedSize(Component c, int sizeflag) {
        return getValidatedSizes(c)[sizeflag];
    }

    public static Dimension[] getValidatedSizes(Component c) {
        Dimension[] d = new Dimension[] { getSize(c, MIN), getSize(c, PREF), getSize(c, MAX) };
        // validation
        if (d[MIN].width > d[PREF].width) {
            d[MIN].width = d[PREF].width;
        }
        if (d[MIN].height > d[PREF].height) {
            d[MIN].height = d[PREF].height;
        }
        if (d[MAX].width < d[PREF].width) {
            d[MAX].width = d[PREF].width;
        }
        if (d[MAX].height < d[PREF].height) {
            d[MAX].height = d[PREF].height;
        }
        return d;
    }

    public static Dimension getSize(Component c, int sizeflag) {
        if (c == null) {
            return new Dimension(0, 0);
        }
        //special case due to swing bug: html labels need to know the current parent layout's size
        if (c instanceof JLabel) {
            View v = (View) ((JLabel) c).getClientProperty(javax.swing.plaf.basic.BasicHTML.propertyKey);
            if (v != null) {
                switch (sizeflag) {
                case MIN: {
                    Dimension d = new Dimension(c.getPreferredSize());
                    d.width = 1;
                    return d;
                }
                case PREF: {
                    Dimension d = new Dimension(c.getPreferredSize());
                    return d;
                }
                case MAX: {
                    Dimension d = new Dimension(10240, 10240);
                    d.width = 1;
                    return d;
                }
                }
            }
        }
        //
        switch (sizeflag) {
        case MIN: {
            return new Dimension(c.getMinimumSize());
        }
        case PREF: {
            return new Dimension(c.getPreferredSize());
        }
        case MAX: {
            return new Dimension(c.getMaximumSize());
        }
        }
        return new Dimension(c.getPreferredSize());
    }
}

Related

1. getPreferredSizeComponent(JComponent component)
2. getScreenSize()
3. getScreenSize(Component invoker)
4. getSize(byte[] data)
5. getSize(Component c, int sizeflag)
6. getViewableScreenSize()
7. getVisibleSizeInViewport(Component c)
8. getWindowSize(JComponent start)
9. inset(Component c, int insetSizeHor, int insetSizeVert)