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BorderFactory.javaAPI DocJava SE 5 API20154Fri Aug 26 14:57:52 BST 2005javax.swing

BorderFactory.java

/*
 * @(#)BorderFactory.java	1.30 03/12/19
 *
 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package javax.swing;

import java.awt.Color;
import java.awt.Font;
import javax.swing.JComponent;
import javax.swing.border.*;

/**
 * Factory class for vending standard <code>Border</code> objects.  Wherever
 * possible, this factory will hand out references to shared
 * <code>Border</code> instances.
 * For further information and examples see
 * <a href="http://java.sun.com/docs/books/tutorial/uiswing/misc/border.html">How
 to Use Borders</a>,
 * a section in <em>The Java Tutorial</em>.
 *
 * @version 1.30 12/19/03
 * @author David Kloba
 */
public class BorderFactory 
{

    /** Don't let anyone instantiate this class */
    private BorderFactory() {
    }


//// LineBorder ///////////////////////////////////////////////////////////////
    /**
     * Creates a line border withe the specified color.
     *
     * @param color  a <code>Color</code> to use for the line
     * @return the <code>Border</code> object
     */
    public static Border createLineBorder(Color color) {
        return new LineBorder(color, 1);
    }

    /**
     * Creates a line border with the specified color
     * and width. The width applies to all four sides of the
     * border. To specify widths individually for the top,
     * bottom, left, and right, use 
     * {@link #createMatteBorder(int,int,int,int,Color)}.
     *
     * @param color  a <code>Color</code> to use for the line
     * @param thickness  an integer specifying the width in pixels
     * @return the <code>Border</code> object
     */
    public static Border createLineBorder(Color color, int thickness)  {
        return new LineBorder(color, thickness);
    }
    
//    public static Border createLineBorder(Color color, int thickness, 
//					boolean drawRounded)  {
//        return new JLineBorder(color, thickness, drawRounded);
//    }

//// BevelBorder /////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
    static final Border sharedRaisedBevel = new BevelBorder(BevelBorder.RAISED);
    static final Border sharedLoweredBevel = new BevelBorder(BevelBorder.LOWERED);

    /**
     * Creates a border with a raised beveled edge, using
     * brighter shades of the component's current background color
     * for highlighting, and darker shading for shadows.
     * (In a raised border, highlights are on top and shadows
     *  are underneath.)
     *
     * @return the <code>Border</code> object
     */
    public static Border createRaisedBevelBorder() {
        return createSharedBevel(BevelBorder.RAISED);
    }

    /**
     * Creates a border with a lowered beveled edge, using
     * brighter shades of the component's current background color
     * for highlighting, and darker shading for shadows.
     * (In a lowered border, shadows are on top and highlights
     *  are underneath.)
     *
     * @return the <code>Border</code> object
     */
    public static Border createLoweredBevelBorder() {
        return createSharedBevel(BevelBorder.LOWERED);
    }

    /**
     * Creates a beveled border of the specified type, using
     * brighter shades of the component's current background color
     * for highlighting, and darker shading for shadows.
     * (In a lowered border, shadows are on top and highlights
     *  are underneath.)
     *
     * @param type  an integer specifying either
     *			<code>BevelBorder.LOWERED</code> or
     *              	<code>BevelBorder.RAISED</code>
     * @return the <code>Border</code> object
     */
    public static Border createBevelBorder(int type) {
	return createSharedBevel(type);
    }
	
    /**
     * Creates a beveled border of the specified type, using
     * the specified highlighting and shadowing. The outer 
     * edge of the highlighted area uses a brighter shade of
     * the highlight color. The inner edge of the shadow area
     * uses a brighter shade of the shadow color.
     * 
     * @param type  an integer specifying either 
     *			<code>BevelBorder.LOWERED</code> or
     *              	<code>BevelBorder.RAISED</code>
     * @param highlight  a <code>Color</code> object for highlights
     * @param shadow     a <code>Color</code> object for shadows
     * @return the <code>Border</code> object
     */
    public static Border createBevelBorder(int type, Color highlight, Color shadow) {
        return new BevelBorder(type, highlight, shadow);
    }

    /**
     * Creates a beveled border of the specified type, using
     * the specified colors for the inner and outer highlight
     * and shadow areas. 
     * <p>
     * Note: The shadow inner and outer colors are
     * switched for a lowered bevel border.
     * 
     * @param type  an integer specifying either 
     *		<code>BevelBorder.LOWERED</code> or
     *          <code>BevelBorder.RAISED</code>
     * @param highlightOuter  a <code>Color</code> object for the
     *			outer edge of the highlight area
     * @param highlightInner  a <code>Color</code> object for the
     *			inner edge of the highlight area
     * @param shadowOuter     a <code>Color</code> object for the
     *			outer edge of the shadow area
     * @param shadowInner     a <code>Color</code> object for the
     *			inner edge of the shadow area
     * @return the <code>Border</code> object
     */
    public static Border createBevelBorder(int type,
                        Color highlightOuter, Color highlightInner,
                        Color shadowOuter, Color shadowInner) {
        return new BevelBorder(type, highlightOuter, highlightInner, 
					shadowOuter, shadowInner);
    }

    static Border createSharedBevel(int type)	{
	if(type == BevelBorder.RAISED) {
	    return sharedRaisedBevel;
	} else if(type == BevelBorder.LOWERED) {
	    return sharedLoweredBevel;
	}
	return null;
    }
//// EtchedBorder ///////////////////////////////////////////////////////////
    static final Border sharedEtchedBorder = new EtchedBorder();
    private static Border sharedRaisedEtchedBorder;

    /**
     * Creates a border with an "etched" look using
     * the component's current background color for 
     * highlighting and shading.
     *
     * @return the <code>Border</code> object
     */
    public static Border createEtchedBorder()    {
	return sharedEtchedBorder;
    }

    /**
     * Creates a border with an "etched" look using
     * the specified highlighting and shading colors.
     *
     * @param highlight  a <code>Color</code> object for the border highlights
     * @param shadow     a <code>Color</code> object for the border shadows
     * @return the <code>Border</code> object 
     */
    public static Border createEtchedBorder(Color highlight, Color shadow)    {
        return new EtchedBorder(highlight, shadow);
    }

    /**
     * Creates a border with an "etched" look using
     * the component's current background color for 
     * highlighting and shading.
     *
     * @param type  	one of <code>EtchedBorder.RAISED</code>, or
     *			<code>EtchedBorder.LOWERED</code>
     * @return the <code>Border</code> object
     * @exception IllegalArgumentException if type is not either
     *			<code>EtchedBorder.RAISED</code> or 
     *			<code>EtchedBorder.LOWERED</code>
     * @since 1.3
     */
    public static Border createEtchedBorder(int type)    {
	switch (type) {
	case EtchedBorder.RAISED:
	    if (sharedRaisedEtchedBorder == null) {
		sharedRaisedEtchedBorder = new EtchedBorder
		                           (EtchedBorder.RAISED);
	    }
	    return sharedRaisedEtchedBorder;
	case EtchedBorder.LOWERED:
	    return sharedEtchedBorder;
	default:
	    throw new IllegalArgumentException("type must be one of EtchedBorder.RAISED or EtchedBorder.LOWERED");
	}
    }

    /**
     * Creates a border with an "etched" look using
     * the specified highlighting and shading colors.
     *
     * @param type    	one of <code>EtchedBorder.RAISED</code>, or
     *			<code>EtchedBorder.LOWERED</code>
     * @param highlight  a <code>Color</code> object for the border highlights
     * @param shadow     a <code>Color</code> object for the border shadows
     * @return the <code>Border</code> object 
     * @since 1.3
     */
    public static Border createEtchedBorder(int type, Color highlight,
					    Color shadow)    {
        return new EtchedBorder(type, highlight, shadow);
    }

//// TitledBorder ////////////////////////////////////////////////////////////
    /**
     * Creates a new title border specifying the text of the title, using
     * the default border (etched), using the default text position
     * (sitting on the top
     * line) and default justification (leading) and using the default
     * font and text color determined by the current look and feel.
     *
     * @param title      a <code>String</code> containing the text of the title
     * @return the <code>TitledBorder</code> object
     */
    public static TitledBorder createTitledBorder(String title)     {
        return new TitledBorder(title);
    }

    /**
     * Creates a new title border with an empty title specifying the
     * border object, using the default text position (sitting on the top
     * line) and default justification (leading) and using the default
     * font, and text color.
     *
     * @param border     the <code>Border</code> object to add the title to, if
     *                   null the <code>Border</code> is determined by the
     *                   current look and feel.
     * @return the <code>TitledBorder</code> object
     */
    public static TitledBorder createTitledBorder(Border border)       {
        return new TitledBorder(border);
    }

    /**
     * Adds a title to an existing border, specifying the text of
     * the title, using the default positioning (sitting on the top
     * line) and default justification (leading) and using the default
     * font and text color determined by the current look and feel.
     *
     * @param border     the <code>Border</code> object to add the title to
     * @param title      a <code>String</code> containing the text of the title
     * @return the <code>TitledBorder</code> object
     */
    public static TitledBorder createTitledBorder(Border border, 
						   String title) {
        return new TitledBorder(border, title);
    }

    /**
     * Adds a title to an existing border, specifying the text of
     * the title along with its positioning, using the default
     * font and text color determined by the current look and feel.
     *
     * @param border      the <code>Border</code> object to add the title to
     * @param title       a <code>String</code> containing the text of the title
     * @param titleJustification  an integer specifying the justification 
     *        of the title -- one of the following:
     *<ul>
     *<li><code>TitledBorder.LEFT</code>
     *<li><code>TitledBorder.CENTER</code>
     *<li><code>TitledBorder.RIGHT</code>
     *<li><code>TitledBorder.LEADING</code>
     *<li><code>TitledBorder.TRAILING<code>
     *<li><code>TitledBorder.DEFAULT_JUSTIFICATION</code> (leading)
     *</ul>
     * @param titlePosition       an integer specifying the vertical position of
     *        the text in relation to the border -- one of the following:
     *<ul>
     *<li><code> TitledBorder.ABOVE_TOP</code>
     *<li>TitledBorder.TOP</code> (sitting on the top line)
     *<li><code>TitledBorder.BELOW_TOP</code>
     *<li><code>TitledBorder.ABOVE_BOTTOM</code>
     *<li><code>TitledBorder.BOTTOM</code> (sitting on the bottom line)
     *<li><code>TitledBorder.BELOW_BOTTOM</code>
     *<li><code>TitledBorder.DEFAULT_POSITION</code> (top)
     *</ul>
     * @return the <code>TitledBorder</code> object
     */
    public static TitledBorder createTitledBorder(Border border, 
                        String title,
                        int titleJustification,
                        int titlePosition)      {
        return new TitledBorder(border, title, titleJustification,
                        titlePosition);
    }

    /**
     * Adds a title to an existing border, specifying the text of
     * the title along with its positioning and font, using the
     * default text color determined by the current look and feel.
     *
     * @param border      the <code>Border</code> object to add the title to
     * @param title       a <code>String</code> containing the text of the title
     * @param titleJustification  an integer specifying the justification
     *        of the title -- one of the following:
     *<ul>
     *<li><code>TitledBorder.LEFT</code>
     *<li><code>TitledBorder.CENTER</code>
     *<li><code>TitledBorder.RIGHT</code>
     *<li><code>TitledBorder.LEADING</code>
     *<li><code>TitledBorder.TRAILING<code>
     *<li><code>TitledBorder.DEFAULT_JUSTIFICATION</code> (leading)
     *</ul>
     * @param titlePosition       an integer specifying the vertical position of
     *        the text in relation to the border -- one of the following:
     *<ul>
     *<li><code> TitledBorder.ABOVE_TOP</code>
     *<li>TitledBorder.TOP</code> (sitting on the top line)
     *<li><code>TitledBorder.BELOW_TOP</code>
     *<li><code>TitledBorder.ABOVE_BOTTOM</code>
     *<li><code>TitledBorder.BOTTOM</code> (sitting on the bottom line)
     *<li><code>TitledBorder.BELOW_BOTTOM</code>
     *<li><code>TitledBorder.DEFAULT_POSITION</code> (top)
     *</ul>
     * @param titleFont           a Font object specifying the title font
     * @return the TitledBorder object
     */
    public static TitledBorder createTitledBorder(Border border,       	
                        String title,
                        int titleJustification,
                        int titlePosition,
                        Font titleFont) {
        return new TitledBorder(border, title, titleJustification,
                        titlePosition, titleFont);
    }

    /**
     * Adds a title to an existing border, specifying the text of
     * the title along with its positioning, font, and color.
     *
     * @param border      the <code>Border</code> object to add the title to
     * @param title       a <code>String</code> containing the text of the title
     * @param titleJustification  an integer specifying the justification
     *        of the title -- one of the following:
     *<ul>
     *<li><code>TitledBorder.LEFT</code>
     *<li><code>TitledBorder.CENTER</code>
     *<li><code>TitledBorder.RIGHT</code>
     *<li><code>TitledBorder.LEADING</code>
     *<li><code>TitledBorder.TRAILING<code>
     *<li><code>TitledBorder.DEFAULT_JUSTIFICATION</code> (leading)
     *</ul>
     * @param titlePosition       an integer specifying the vertical position of
     *        the text in relation to the border -- one of the following:
     *<ul>
     *<li><code> TitledBorder.ABOVE_TOP</code>
     *<li>TitledBorder.TOP</code> (sitting on the top line)
     *<li><code>TitledBorder.BELOW_TOP</code>
     *<li><code>TitledBorder.ABOVE_BOTTOM</code>
     *<li><code>TitledBorder.BOTTOM</code> (sitting on the bottom line)
     *<li><code>TitledBorder.BELOW_BOTTOM</code>
     *<li><code>TitledBorder.DEFAULT_POSITION</code> (top)
     *</ul>
     * @param titleFont   a <code>Font</code> object specifying the title font
     * @param titleColor  a <code>Color</code> object specifying the title color
     * @return the <code>TitledBorder</code> object
     */
    public static TitledBorder createTitledBorder(Border border,                     
                        String title,
                        int titleJustification,
                        int titlePosition,
                        Font titleFont,
                        Color titleColor)       {
        return new TitledBorder(border, title, titleJustification,
                        titlePosition, titleFont, titleColor);
    }
//// EmptyBorder ///////////////////////////////////////////////////////////	
    final static Border emptyBorder = new EmptyBorder(0, 0, 0, 0);

    /**
     * Creates an empty border that takes up no space. (The width
     * of the top, bottom, left, and right sides are all zero.)
     *
     * @return the <code>Border</code> object
     */
    public static Border createEmptyBorder() {
	return emptyBorder;
    }

    /**
     * Creates an empty border that takes up space but which does
     * no drawing, specifying the width of the top, left, bottom, and
     * right sides.
     *
     * @param top     an integer specifying the width of the top,
     *			in pixels
     * @param left    an integer specifying the width of the left side,
     *			in pixels
     * @param bottom  an integer specifying the width of the bottom,
     *			in pixels
     * @param right   an integer specifying the width of the right side,
     *			in pixels
     * @return the <code>Border</code> object
     */
    public static Border createEmptyBorder(int top, int left, 
						int bottom, int right) {
	return new EmptyBorder(top, left, bottom, right);
    }

//// CompoundBorder ////////////////////////////////////////////////////////
    /**
     * Creates a compound border with a <code>null</code> inside edge and a
     * <code>null</code> outside edge.
     *
     * @return the <code>CompoundBorder</code> object
     */
    public static CompoundBorder createCompoundBorder() { 
	return new CompoundBorder(); 
    }

    /**
     * Creates a compound border specifying the border objects to use
     * for the outside and inside edges.
     *
     * @param outsideBorder  a <code>Border</code> object for the outer
     *				edge of the compound border
     * @param insideBorder   a <code>Border</code> object for the inner
     *				edge of the compound border
     * @return the <code>CompoundBorder</code> object
     */
    public static CompoundBorder createCompoundBorder(Border outsideBorder, 
						Border insideBorder) { 
	return new CompoundBorder(outsideBorder, insideBorder); 
    }

//// MatteBorder ////////////////////////////////////////////////////////
    /**
     * Creates a matte-look border using a solid color. (The difference between
     * this border and a line border is that you can specify the individual
     * border dimensions.)
     *
     * @param top     an integer specifying the width of the top,
     *				in pixels
     * @param left    an integer specifying the width of the left side,
     *				in pixels
     * @param bottom  an integer specifying the width of the right side,
     *				in pixels
     * @param right   an integer specifying the width of the bottom,
     *				in pixels
     * @param color   a <code>Color</code> to use for the border
     * @return the <code>MatteBorder</code> object 
     */
    public static MatteBorder createMatteBorder(int top, int left, int bottom, int right, 
                                                Color color) {
        return new MatteBorder(top, left, bottom, right, color);
    }

    /**
     * Creates a matte-look border that consists of multiple tiles of a 
     * specified icon. Multiple copies of the icon are placed side-by-side
     * to fill up the border area.
     * <p>
     * Note:<br> 
     * If the icon doesn't load, the border area is painted gray.
     *
     * @param top     an integer specifying the width of the top,
     *				in pixels
     * @param left    an integer specifying the width of the left side,
     *				in pixels
     * @param bottom  an integer specifying the width of the right side,
     *				in pixels
     * @param right   an integer specifying the width of the bottom,
     *				in pixels
     * @param tileIcon  the <code>Icon</code> object used for the border tiles
     * @return the <code>MatteBorder</code> object
     */
    public static MatteBorder createMatteBorder(int top, int left, int bottom, int right, 
                                                Icon tileIcon) {
        return new MatteBorder(top, left, bottom, right, tileIcon);
    }
}