/* * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package javax.swing.plaf.basic; import javax.swing.*;import java.awt.Component;import java.awt.Color;import java.awt.Dimension;import java.awt.Font;import java.awt.FontMetrics;import java.awt.Graphics;import java.awt.Insets;import java.awt.Rectangle;import java.awt.Toolkit;import java.awt.event.KeyEvent;import java.awt.event.InputEvent; import sun.swing.SwingUtilities2;  /* * @author Hans Muller */ public class BasicGraphicsUtils{     private static final Insets GROOVE_INSETS = new Insets(2, 2, 2, 2);    private static final Insets ETCHED_INSETS = new Insets(2, 2, 2, 2);     public static void drawEtchedRect(Graphics g, int x, int y, int w, int h,                                      Color shadow, Color darkShadow,                                      Color highlight, Color lightHighlight)    {        Color oldColor = g.getColor();  // Make no net change to g        g.translate(x, y);         g.setColor(shadow);        g.drawLine(0, 0, w-1, 0);      // outer border, top        g.drawLine(0, 1, 0, h-2);      // outer border, left         g.setColor(darkShadow);        g.drawLine(1, 1, w-3, 1);      // inner border, top        g.drawLine(1, 2, 1, h-3);      // inner border, left         g.setColor(lightHighlight);        g.drawLine(w-1, 0, w-1, h-1);  // outer border, bottom        g.drawLine(0, h-1, w-1, h-1);  // outer border, right         g.setColor(highlight);        g.drawLine(w-2, 1, w-2, h-3);  // inner border, right        g.drawLine(1, h-2, w-2, h-2);  // inner border, bottom         g.translate(-x, -y);        g.setColor(oldColor);    }      /**     * Returns the amount of space taken up by a border drawn by     * <code>drawEtchedRect()</code>     *     * @return  the inset of an etched rect     */    public static Insets getEtchedInsets() {        return ETCHED_INSETS;    }      public static void drawGroove(Graphics g, int x, int y, int w, int h,                                  Color shadow, Color highlight)    {        Color oldColor = g.getColor();  // Make no net change to g        g.translate(x, y);         g.setColor(shadow);        g.drawRect(0, 0, w-2, h-2);         g.setColor(highlight);        g.drawLine(1, h-3, 1, 1);        g.drawLine(1, 1, w-3, 1);         g.drawLine(0, h-1, w-1, h-1);        g.drawLine(w-1, h-1, w-1, 0);         g.translate(-x, -y);        g.setColor(oldColor);    }     /**     * Returns the amount of space taken up by a border drawn by     * <code>drawGroove()</code>     *     * @return  the inset of a groove border     */    public static Insets getGrooveInsets() {        return GROOVE_INSETS;    }      public static void drawBezel(Graphics g, int x, int y, int w, int h,                                 boolean isPressed, boolean isDefault,                                 Color shadow, Color darkShadow,                                 Color highlight, Color lightHighlight)    {        Color oldColor = g.getColor();  // Make no net change to g        g.translate(x, y);         if (isPressed && isDefault) {            g.setColor(darkShadow);            g.drawRect(0, 0, w - 1, h - 1);            g.setColor(shadow);            g.drawRect(1, 1, w - 3, h - 3);        } else if (isPressed) {            drawLoweredBezel(g, x, y, w, h,                             shadow, darkShadow, highlight, lightHighlight);        } else if (isDefault) {            g.setColor(darkShadow);            g.drawRect(0, 0, w-1, h-1);             g.setColor(lightHighlight);            g.drawLine(1, 1, 1, h-3);            g.drawLine(2, 1, w-3, 1);             g.setColor(highlight);            g.drawLine(2, 2, 2, h-4);            g.drawLine(3, 2, w-4, 2);             g.setColor(shadow);            g.drawLine(2, h-3, w-3, h-3);            g.drawLine(w-3, 2, w-3, h-4);             g.setColor(darkShadow);            g.drawLine(1, h-2, w-2, h-2);            g.drawLine(w-2, h-2, w-2, 1);        } else {            g.setColor(lightHighlight);            g.drawLine(0, 0, 0, h-1);            g.drawLine(1, 0, w-2, 0);             g.setColor(highlight);            g.drawLine(1, 1, 1, h-3);            g.drawLine(2, 1, w-3, 1);             g.setColor(shadow);            g.drawLine(1, h-2, w-2, h-2);            g.drawLine(w-2, 1, w-2, h-3);             g.setColor(darkShadow);            g.drawLine(0, h-1, w-1, h-1);            g.drawLine(w-1, h-1, w-1, 0);        }        g.translate(-x, -y);        g.setColor(oldColor);    }     public static void drawLoweredBezel(Graphics g, int x, int y, int w, int h,                                        Color shadow, Color darkShadow,                                        Color highlight, Color lightHighlight)  {        g.setColor(darkShadow);        g.drawLine(0, 0, 0, h-1);        g.drawLine(1, 0, w-2, 0);         g.setColor(shadow);        g.drawLine(1, 1, 1, h-2);        g.drawLine(1, 1, w-3, 1);         g.setColor(lightHighlight);        g.drawLine(0, h-1, w-1, h-1);        g.drawLine(w-1, h-1, w-1, 0);         g.setColor(highlight);        g.drawLine(1, h-2, w-2, h-2);        g.drawLine(w-2, h-2, w-2, 1);     }      /** Draw a string with the graphics <code>g</code> at location (x,y)     *  just like <code>g.drawString</code> would.     *  The first occurrence of <code>underlineChar</code>     *  in text will be underlined. The matching algorithm is     *  not case sensitive.     */    public static void drawString(Graphics g,String text,int underlinedChar,int x,int y) {        int index=-1;         if (underlinedChar != '\0') {            char uc = Character.toUpperCase((char)underlinedChar);            char lc = Character.toLowerCase((char)underlinedChar);            int uci = text.indexOf(uc);            int lci = text.indexOf(lc);             if(uci == -1) {                index = lci;            }            else if(lci == -1) {                index = uci;            }            else {                index = (lci < uci) ? lci : uci;            }        }        drawStringUnderlineCharAt(g, text, index, x, y);    }     /**     * Draw a string with the graphics <code>g</code> at location     * (<code>x</code>, <code>y</code>)     * just like <code>g.drawString</code> would.     * The character at index <code>underlinedIndex</code>     * in text will be underlined. If <code>index</code> is beyond the     * bounds of <code>text</code> (including < 0), nothing will be     * underlined.     *     * @param g Graphics to draw with     * @param text String to draw     * @param underlinedIndex Index of character in text to underline     * @param x x coordinate to draw at     * @param y y coordinate to draw at     * @since 1.4     */    public static void drawStringUnderlineCharAt(Graphics g, String text,                           int underlinedIndex, int x,int y) {        SwingUtilities2.drawStringUnderlineCharAt(null, g, text,                                                  underlinedIndex, x, y);    }     public static void drawDashedRect(Graphics g,int x,int y,int width,int height) {        int vx,vy;         // draw upper and lower horizontal dashes        for (vx = x; vx < (x + width); vx+=2) {            g.fillRect(vx, y, 1, 1);            g.fillRect(vx, y + height-1, 1, 1);        }         // draw left and right vertical dashes        for (vy = y; vy < (y + height); vy+=2) {            g.fillRect(x, vy, 1, 1);            g.fillRect(x+width-1, vy, 1, 1);        }    }     public static Dimension getPreferredButtonSize(AbstractButton b, int textIconGap)    {        if(b.getComponentCount() > 0) {            return null;        }         Icon icon = b.getIcon();        String text = b.getText();         Font font = b.getFont();        FontMetrics fm = b.getFontMetrics(font);         Rectangle iconR = new Rectangle();        Rectangle textR = new Rectangle();        Rectangle viewR = new Rectangle(Short.MAX_VALUE, Short.MAX_VALUE);         SwingUtilities.layoutCompoundLabel(            b, fm, text, icon,            b.getVerticalAlignment(), b.getHorizontalAlignment(),            b.getVerticalTextPosition(), b.getHorizontalTextPosition(),            viewR, iconR, textR, (text == null ? 0 : textIconGap)        );         /* The preferred size of the button is the size of         * the text and icon rectangles plus the buttons insets.         */         Rectangle r = iconR.union(textR);         Insets insets = b.getInsets();        r.width += insets.left + insets.right;        r.height += insets.top + insets.bottom;         return r.getSize();    }     /*     * Convenience function for determining ComponentOrientation.  Helps us     * avoid having Munge directives throughout the code.     */    static boolean isLeftToRight( Component c ) {        return c.getComponentOrientation().isLeftToRight();    }     static boolean isMenuShortcutKeyDown(InputEvent event) {        return (event.getModifiers() &                Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()) != 0;    }}