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763 lines
30 KiB
763 lines
30 KiB
/*
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* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.swing;
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import java.awt.BasicStroke;
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import java.awt.Color;
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import java.awt.Font;
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import java.awt.Paint;
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import javax.swing.border.*;
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/**
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* Factory class for vending standard <code>Border</code> objects. Wherever
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* possible, this factory will hand out references to shared
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* <code>Border</code> instances.
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* For further information and examples see
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* <a href="https://docs.oracle.com/javase/tutorial/uiswing/components/border.htmll">How
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to Use Borders</a>,
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* a section in <em>The Java Tutorial</em>.
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*
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* @author David Kloba
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*/
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public class BorderFactory
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{
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/** Don't let anyone instantiate this class */
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private BorderFactory() {
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}
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//// LineBorder ///////////////////////////////////////////////////////////////
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/**
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* Creates a line border withe the specified color.
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*
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* @param color a <code>Color</code> to use for the line
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* @return the <code>Border</code> object
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*/
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public static Border createLineBorder(Color color) {
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return new LineBorder(color, 1);
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}
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/**
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* Creates a line border with the specified color
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* and width. The width applies to all four sides of the
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* border. To specify widths individually for the top,
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* bottom, left, and right, use
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* {@link #createMatteBorder(int,int,int,int,Color)}.
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*
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* @param color a <code>Color</code> to use for the line
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* @param thickness an integer specifying the width in pixels
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* @return the <code>Border</code> object
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*/
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public static Border createLineBorder(Color color, int thickness) {
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return new LineBorder(color, thickness);
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}
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/**
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* Creates a line border with the specified color, thickness, and corner shape.
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*
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* @param color the color of the border
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* @param thickness the thickness of the border
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* @param rounded whether or not border corners should be round
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* @return the {@code Border} object
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*
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* @see LineBorder#LineBorder(Color, int, boolean)
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* @since 1.7
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*/
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public static Border createLineBorder(Color color, int thickness, boolean rounded) {
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return new LineBorder(color, thickness, rounded);
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}
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//// BevelBorder /////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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static final Border sharedRaisedBevel = new BevelBorder(BevelBorder.RAISED);
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static final Border sharedLoweredBevel = new BevelBorder(BevelBorder.LOWERED);
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/**
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* Creates a border with a raised beveled edge, using
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* brighter shades of the component's current background color
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* for highlighting, and darker shading for shadows.
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* (In a raised border, highlights are on top and shadows
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* are underneath.)
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*
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* @return the <code>Border</code> object
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*/
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public static Border createRaisedBevelBorder() {
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return createSharedBevel(BevelBorder.RAISED);
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}
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/**
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* Creates a border with a lowered beveled edge, using
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* brighter shades of the component's current background color
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* for highlighting, and darker shading for shadows.
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* (In a lowered border, shadows are on top and highlights
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* are underneath.)
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*
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* @return the <code>Border</code> object
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*/
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public static Border createLoweredBevelBorder() {
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return createSharedBevel(BevelBorder.LOWERED);
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}
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/**
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* Creates a beveled border of the specified type, using
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* brighter shades of the component's current background color
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* for highlighting, and darker shading for shadows.
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* (In a lowered border, shadows are on top and highlights
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* are underneath.)
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*
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* @param type an integer specifying either
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* <code>BevelBorder.LOWERED</code> or
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* <code>BevelBorder.RAISED</code>
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* @return the <code>Border</code> object
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*/
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public static Border createBevelBorder(int type) {
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return createSharedBevel(type);
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}
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/**
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* Creates a beveled border of the specified type, using
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* the specified highlighting and shadowing. The outer
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* edge of the highlighted area uses a brighter shade of
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* the highlight color. The inner edge of the shadow area
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* uses a brighter shade of the shadow color.
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*
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* @param type an integer specifying either
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* <code>BevelBorder.LOWERED</code> or
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* <code>BevelBorder.RAISED</code>
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* @param highlight a <code>Color</code> object for highlights
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* @param shadow a <code>Color</code> object for shadows
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* @return the <code>Border</code> object
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*/
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public static Border createBevelBorder(int type, Color highlight, Color shadow) {
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return new BevelBorder(type, highlight, shadow);
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}
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/**
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* Creates a beveled border of the specified type, using
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* the specified colors for the inner and outer highlight
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* and shadow areas.
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*
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* @param type an integer specifying either
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* <code>BevelBorder.LOWERED</code> or
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* <code>BevelBorder.RAISED</code>
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* @param highlightOuter a <code>Color</code> object for the
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* outer edge of the highlight area
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* @param highlightInner a <code>Color</code> object for the
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* inner edge of the highlight area
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* @param shadowOuter a <code>Color</code> object for the
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* outer edge of the shadow area
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* @param shadowInner a <code>Color</code> object for the
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* inner edge of the shadow area
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* @return the <code>Border</code> object
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*/
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public static Border createBevelBorder(int type,
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Color highlightOuter, Color highlightInner,
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Color shadowOuter, Color shadowInner) {
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return new BevelBorder(type, highlightOuter, highlightInner,
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shadowOuter, shadowInner);
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}
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static Border createSharedBevel(int type) {
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if(type == BevelBorder.RAISED) {
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return sharedRaisedBevel;
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} else if(type == BevelBorder.LOWERED) {
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return sharedLoweredBevel;
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}
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return null;
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}
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//// SoftBevelBorder ///////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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private static Border sharedSoftRaisedBevel;
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private static Border sharedSoftLoweredBevel;
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/**
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* Creates a beveled border with a raised edge and softened corners,
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* using brighter shades of the component's current background color
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* for highlighting, and darker shading for shadows.
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* In a raised border, highlights are on top and shadows are underneath.
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*
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* @return the {@code Border} object
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*
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* @since 1.7
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*/
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public static Border createRaisedSoftBevelBorder() {
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if (sharedSoftRaisedBevel == null) {
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sharedSoftRaisedBevel = new SoftBevelBorder(BevelBorder.RAISED);
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}
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return sharedSoftRaisedBevel;
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}
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/**
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* Creates a beveled border with a lowered edge and softened corners,
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* using brighter shades of the component's current background color
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* for highlighting, and darker shading for shadows.
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* In a lowered border, shadows are on top and highlights are underneath.
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*
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* @return the {@code Border} object
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*
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* @since 1.7
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*/
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public static Border createLoweredSoftBevelBorder() {
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if (sharedSoftLoweredBevel == null) {
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sharedSoftLoweredBevel = new SoftBevelBorder(BevelBorder.LOWERED);
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}
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return sharedSoftLoweredBevel;
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}
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/**
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* Creates a beveled border of the specified type with softened corners,
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* using brighter shades of the component's current background color
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* for highlighting, and darker shading for shadows.
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* The type is either {@link BevelBorder#RAISED} or {@link BevelBorder#LOWERED}.
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*
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* @param type a type of a bevel
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* @return the {@code Border} object or {@code null}
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* if the specified type is not valid
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*
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* @see BevelBorder#BevelBorder(int)
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* @since 1.7
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*/
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public static Border createSoftBevelBorder(int type) {
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if (type == BevelBorder.RAISED) {
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return createRaisedSoftBevelBorder();
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}
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if (type == BevelBorder.LOWERED) {
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return createLoweredSoftBevelBorder();
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}
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return null;
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}
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/**
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* Creates a beveled border of the specified type with softened corners,
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* using the specified highlighting and shadowing.
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* The type is either {@link BevelBorder#RAISED} or {@link BevelBorder#LOWERED}.
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* The outer edge of the highlight area uses
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* a brighter shade of the {@code highlight} color.
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* The inner edge of the shadow area uses
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* a brighter shade of the {@code shadow} color.
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*
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* @param type a type of a bevel
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* @param highlight a basic color of the highlight area
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* @param shadow a basic color of the shadow area
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* @return the {@code Border} object
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*
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* @see BevelBorder#BevelBorder(int, Color, Color)
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* @since 1.7
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*/
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public static Border createSoftBevelBorder(int type, Color highlight, Color shadow) {
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return new SoftBevelBorder(type, highlight, shadow);
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}
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/**
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* Creates a beveled border of the specified type with softened corners,
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* using the specified colors for the inner and outer edges
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* of the highlight and the shadow areas.
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* The type is either {@link BevelBorder#RAISED} or {@link BevelBorder#LOWERED}.
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* Note: The shadow inner and outer colors are switched
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* for a lowered bevel border.
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*
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* @param type a type of a bevel
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* @param highlightOuter a color of the outer edge of the highlight area
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* @param highlightInner a color of the inner edge of the highlight area
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* @param shadowOuter a color of the outer edge of the shadow area
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* @param shadowInner a color of the inner edge of the shadow area
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* @return the {@code Border} object
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*
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* @see BevelBorder#BevelBorder(int, Color, Color, Color, Color)
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* @since 1.7
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*/
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public static Border createSoftBevelBorder(int type, Color highlightOuter, Color highlightInner, Color shadowOuter, Color shadowInner) {
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return new SoftBevelBorder(type, highlightOuter, highlightInner, shadowOuter, shadowInner);
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}
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//// EtchedBorder ///////////////////////////////////////////////////////////
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static final Border sharedEtchedBorder = new EtchedBorder();
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private static Border sharedRaisedEtchedBorder;
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/**
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* Creates a border with an "etched" look using
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* the component's current background color for
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* highlighting and shading.
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*
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* @return the <code>Border</code> object
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*/
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public static Border createEtchedBorder() {
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return sharedEtchedBorder;
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}
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/**
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* Creates a border with an "etched" look using
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* the specified highlighting and shading colors.
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*
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* @param highlight a <code>Color</code> object for the border highlights
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* @param shadow a <code>Color</code> object for the border shadows
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* @return the <code>Border</code> object
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*/
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public static Border createEtchedBorder(Color highlight, Color shadow) {
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return new EtchedBorder(highlight, shadow);
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}
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/**
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* Creates a border with an "etched" look using
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* the component's current background color for
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* highlighting and shading.
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*
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* @param type one of <code>EtchedBorder.RAISED</code>, or
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* <code>EtchedBorder.LOWERED</code>
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* @return the <code>Border</code> object
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* @exception IllegalArgumentException if type is not either
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* <code>EtchedBorder.RAISED</code> or
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* <code>EtchedBorder.LOWERED</code>
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* @since 1.3
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*/
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public static Border createEtchedBorder(int type) {
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switch (type) {
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case EtchedBorder.RAISED:
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if (sharedRaisedEtchedBorder == null) {
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sharedRaisedEtchedBorder = new EtchedBorder
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(EtchedBorder.RAISED);
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}
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return sharedRaisedEtchedBorder;
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case EtchedBorder.LOWERED:
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return sharedEtchedBorder;
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default:
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throw new IllegalArgumentException("type must be one of EtchedBorder.RAISED or EtchedBorder.LOWERED");
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}
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}
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/**
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* Creates a border with an "etched" look using
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* the specified highlighting and shading colors.
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*
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* @param type one of <code>EtchedBorder.RAISED</code>, or
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* <code>EtchedBorder.LOWERED</code>
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* @param highlight a <code>Color</code> object for the border highlights
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* @param shadow a <code>Color</code> object for the border shadows
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* @return the <code>Border</code> object
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* @since 1.3
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*/
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public static Border createEtchedBorder(int type, Color highlight,
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Color shadow) {
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return new EtchedBorder(type, highlight, shadow);
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}
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//// TitledBorder ////////////////////////////////////////////////////////////
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/**
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* Creates a new titled border with the specified title,
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* the default border type (determined by the current look and feel),
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* the default text position (determined by the current look and feel),
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* the default justification (leading), and the default
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* font and text color (determined by the current look and feel).
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*
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* @param title a <code>String</code> containing the text of the title
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* @return the <code>TitledBorder</code> object
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*/
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public static TitledBorder createTitledBorder(String title) {
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return new TitledBorder(title);
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}
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/**
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* Creates a new titled border with an empty title,
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* the specified border object,
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* the default text position (determined by the current look and feel),
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* the default justification (leading), and the default
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* font and text color (determined by the current look and feel).
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*
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* @param border the <code>Border</code> object to add the title to; if
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* <code>null</code> the <code>Border</code> is determined
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* by the current look and feel.
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* @return the <code>TitledBorder</code> object
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*/
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public static TitledBorder createTitledBorder(Border border) {
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return new TitledBorder(border);
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}
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/**
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* Adds a title to an existing border,
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* with default positioning (determined by the current look and feel),
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* default justification (leading) and the default
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* font and text color (determined by the current look and feel).
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*
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* @param border the <code>Border</code> object to add the title to
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* @param title a <code>String</code> containing the text of the title
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* @return the <code>TitledBorder</code> object
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*/
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public static TitledBorder createTitledBorder(Border border,
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String title) {
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return new TitledBorder(border, title);
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}
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/**
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* Adds a title to an existing border, with the specified
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* positioning and using the default
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* font and text color (determined by the current look and feel).
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*
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* @param border the <code>Border</code> object to add the title to
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* @param title a <code>String</code> containing the text of the title
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* @param titleJustification an integer specifying the justification
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* of the title -- one of the following:
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*<ul>
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*<li><code>TitledBorder.LEFT</code>
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*<li><code>TitledBorder.CENTER</code>
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*<li><code>TitledBorder.RIGHT</code>
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*<li><code>TitledBorder.LEADING</code>
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*<li><code>TitledBorder.TRAILING</code>
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*<li><code>TitledBorder.DEFAULT_JUSTIFICATION</code> (leading)
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*</ul>
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* @param titlePosition an integer specifying the vertical position of
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* the text in relation to the border -- one of the following:
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*<ul>
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*<li><code> TitledBorder.ABOVE_TOP</code>
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*<li><code>TitledBorder.TOP</code> (sitting on the top line)
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*<li><code>TitledBorder.BELOW_TOP</code>
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*<li><code>TitledBorder.ABOVE_BOTTOM</code>
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*<li><code>TitledBorder.BOTTOM</code> (sitting on the bottom line)
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*<li><code>TitledBorder.BELOW_BOTTOM</code>
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*<li><code>TitledBorder.DEFAULT_POSITION</code> (the title position
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* is determined by the current look and feel)
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*</ul>
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* @return the <code>TitledBorder</code> object
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*/
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public static TitledBorder createTitledBorder(Border border,
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String title,
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int titleJustification,
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int titlePosition) {
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return new TitledBorder(border, title, titleJustification,
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titlePosition);
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}
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/**
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* Adds a title to an existing border, with the specified
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* positioning and font, and using the default text color
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* (determined by the current look and feel).
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*
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* @param border the <code>Border</code> object to add the title to
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* @param title a <code>String</code> containing the text of the title
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* @param titleJustification an integer specifying the justification
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* of the title -- one of the following:
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*<ul>
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*<li><code>TitledBorder.LEFT</code>
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*<li><code>TitledBorder.CENTER</code>
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*<li><code>TitledBorder.RIGHT</code>
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*<li><code>TitledBorder.LEADING</code>
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*<li><code>TitledBorder.TRAILING</code>
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*<li><code>TitledBorder.DEFAULT_JUSTIFICATION</code> (leading)
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*</ul>
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* @param titlePosition an integer specifying the vertical position of
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* the text in relation to the border -- one of the following:
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*<ul>
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*<li><code> TitledBorder.ABOVE_TOP</code>
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*<li><code>TitledBorder.TOP</code> (sitting on the top line)
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*<li><code>TitledBorder.BELOW_TOP</code>
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*<li><code>TitledBorder.ABOVE_BOTTOM</code>
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*<li><code>TitledBorder.BOTTOM</code> (sitting on the bottom line)
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*<li><code>TitledBorder.BELOW_BOTTOM</code>
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*<li><code>TitledBorder.DEFAULT_POSITION</code> (the title position
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* is determined by the current look and feel)
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*</ul>
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* @param titleFont a Font object specifying the title font
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* @return the TitledBorder object
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*/
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public static TitledBorder createTitledBorder(Border border,
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String title,
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int titleJustification,
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int titlePosition,
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Font titleFont) {
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return new TitledBorder(border, title, titleJustification,
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titlePosition, titleFont);
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}
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/**
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* Adds a title to an existing border, with the specified
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* positioning, font and color.
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*
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* @param border the <code>Border</code> object to add the title to
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* @param title a <code>String</code> containing the text of the title
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* @param titleJustification an integer specifying the justification
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* 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><code>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> (the title position
|
|
* is determined by the current look and feel)
|
|
*</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);
|
|
}
|
|
|
|
//// StrokeBorder //////////////////////////////////////////////////////////////
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
* Creates a border of the specified {@code stroke}.
|
|
* The component's foreground color will be used to render the border.
|
|
*
|
|
* @param stroke the {@link BasicStroke} object used to stroke a shape
|
|
* @return the {@code Border} object
|
|
*
|
|
* @throws NullPointerException if the specified {@code stroke} is {@code null}
|
|
*
|
|
* @since 1.7
|
|
*/
|
|
public static Border createStrokeBorder(BasicStroke stroke) {
|
|
return new StrokeBorder(stroke);
|
|
}
|
|
|
|
/**
|
|
* Creates a border of the specified {@code stroke} and {@code paint}.
|
|
* If the specified {@code paint} is {@code null},
|
|
* the component's foreground color will be used to render the border.
|
|
*
|
|
* @param stroke the {@link BasicStroke} object used to stroke a shape
|
|
* @param paint the {@link Paint} object used to generate a color
|
|
* @return the {@code Border} object
|
|
*
|
|
* @throws NullPointerException if the specified {@code stroke} is {@code null}
|
|
*
|
|
* @since 1.7
|
|
*/
|
|
public static Border createStrokeBorder(BasicStroke stroke, Paint paint) {
|
|
return new StrokeBorder(stroke, paint);
|
|
}
|
|
|
|
//// DashedBorder //////////////////////////////////////////////////////////////
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
private static Border sharedDashedBorder;
|
|
|
|
/**
|
|
* Creates a dashed border of the specified {@code paint}.
|
|
* If the specified {@code paint} is {@code null},
|
|
* the component's foreground color will be used to render the border.
|
|
* The width of a dash line is equal to {@code 1}.
|
|
* The relative length of a dash line and
|
|
* the relative spacing between dash lines are equal to {@code 1}.
|
|
* A dash line is not rounded.
|
|
*
|
|
* @param paint the {@link Paint} object used to generate a color
|
|
* @return the {@code Border} object
|
|
*
|
|
* @since 1.7
|
|
*/
|
|
public static Border createDashedBorder(Paint paint) {
|
|
return createDashedBorder(paint, 1.0f, 1.0f, 1.0f, false);
|
|
}
|
|
|
|
/**
|
|
* Creates a dashed border of the specified {@code paint},
|
|
* relative {@code length}, and relative {@code spacing}.
|
|
* If the specified {@code paint} is {@code null},
|
|
* the component's foreground color will be used to render the border.
|
|
* The width of a dash line is equal to {@code 1}.
|
|
* A dash line is not rounded.
|
|
*
|
|
* @param paint the {@link Paint} object used to generate a color
|
|
* @param length the relative length of a dash line
|
|
* @param spacing the relative spacing between dash lines
|
|
* @return the {@code Border} object
|
|
*
|
|
* @throws IllegalArgumentException if the specified {@code length} is less than {@code 1}, or
|
|
* if the specified {@code spacing} is less than {@code 0}
|
|
* @since 1.7
|
|
*/
|
|
public static Border createDashedBorder(Paint paint, float length, float spacing) {
|
|
return createDashedBorder(paint, 1.0f, length, spacing, false);
|
|
}
|
|
|
|
/**
|
|
* Creates a dashed border of the specified {@code paint}, {@code thickness},
|
|
* line shape, relative {@code length}, and relative {@code spacing}.
|
|
* If the specified {@code paint} is {@code null},
|
|
* the component's foreground color will be used to render the border.
|
|
*
|
|
* @param paint the {@link Paint} object used to generate a color
|
|
* @param thickness the width of a dash line
|
|
* @param length the relative length of a dash line
|
|
* @param spacing the relative spacing between dash lines
|
|
* @param rounded whether or not line ends should be round
|
|
* @return the {@code Border} object
|
|
*
|
|
* @throws IllegalArgumentException if the specified {@code thickness} is less than {@code 1}, or
|
|
* if the specified {@code length} is less than {@code 1}, or
|
|
* if the specified {@code spacing} is less than {@code 0}
|
|
* @since 1.7
|
|
*/
|
|
public static Border createDashedBorder(Paint paint, float thickness, float length, float spacing, boolean rounded) {
|
|
boolean shared = !rounded && (paint == null) && (thickness == 1.0f) && (length == 1.0f) && (spacing == 1.0f);
|
|
if (shared && (sharedDashedBorder != null)) {
|
|
return sharedDashedBorder;
|
|
}
|
|
if (thickness < 1.0f) {
|
|
throw new IllegalArgumentException("thickness is less than 1");
|
|
}
|
|
if (length < 1.0f) {
|
|
throw new IllegalArgumentException("length is less than 1");
|
|
}
|
|
if (spacing < 0.0f) {
|
|
throw new IllegalArgumentException("spacing is less than 0");
|
|
}
|
|
int cap = rounded ? BasicStroke.CAP_ROUND : BasicStroke.CAP_SQUARE;
|
|
int join = rounded ? BasicStroke.JOIN_ROUND : BasicStroke.JOIN_MITER;
|
|
float[] array = { thickness * (length - 1.0f), thickness * (spacing + 1.0f) };
|
|
Border border = createStrokeBorder(new BasicStroke(thickness, cap, join, thickness * 2.0f, array, 0.0f), paint);
|
|
if (shared) {
|
|
sharedDashedBorder = border;
|
|
}
|
|
return border;
|
|
}
|
|
}
|