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Options.java

/*
 * Copyright (c) 2001-2007 JGoodies Karsten Lentzsch. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 *  o Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer. 
 *     
 *  o Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution. 
 *     
 *  o Neither the name of JGoodies Karsten Lentzsch nor the names of 
 *    its contributors may be used to endorse or promote products derived 
 *    from this software without specific prior written permission. 
 *     
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

package com.jgoodies.looks;

import java.awt.Dimension;
import java.util.HashMap;
import java.util.Map;

import javax.swing.UIManager;

import com.jgoodies.looks.common.ShadowPopup;
import com.jgoodies.looks.plastic.PlasticLookAndFeel;
import com.jgoodies.looks.windows.WindowsLookAndFeel;
import com.sun.java.swing.plaf.windows.WindowsComboBoxUI;

/**
 * Provides access to optional features of the JGoodies L&Fs 
 * via a key to the system properties, via a key for the <code>UIDefaults</code> 
 * table, via a method, or all of them.<p>
 * 
 * API users can use this class' constants or their values to configure
 * the JGoodies L&amP;f. Using the constants requires the Looks library
 * classes in the class path of the using application/applet, where using
 * the String values doesn't require having this class in the class path.
 * 
 * @author  Karsten Lentzsch
 * @version $Revision: 1.16 $
 */
00057 public final class Options {

    // Look & Feel Names ******************************************************

    /**
     * The class name of the JGoodies Plastic L&amp;f.
     */
00064     public static final String PLASTIC_NAME =
        "com.jgoodies.looks.plastic.PlasticLookAndFeel";
        
    /**
     * The class name of the JGoodies Plastic3D L&amp;f.
     */
00070     public static final String PLASTIC3D_NAME =
        "com.jgoodies.looks.plastic.Plastic3DLookAndFeel";
        
    /**
     * The class name of the JGoodies PlasticXP L&amp;f.
     */
00076     public static final String PLASTICXP_NAME =
        "com.jgoodies.looks.plastic.PlasticXPLookAndFeel";
        
    /**
     * The class name of the JGoodies Windows L&amp;f.
     */
00082     public static final String JGOODIES_WINDOWS_NAME =
        "com.jgoodies.looks.windows.WindowsLookAndFeel";
        
    /**
     * The class name of the default JGoodies L&amp;f, PlasticXP.
     */
00088     public static final String DEFAULT_LOOK_NAME = 
        PLASTICXP_NAME;

    /**
     * Holds a Map that enables the look&amp;feel replacement
     * mechanism to replace one look by another. 
     * Maps the original class names to their replacement class names.
     * 
     * @see #getReplacementClassNameFor(String)
     * @see #putLookAndFeelReplacement(String, String)
     * @see #removeLookAndFeelReplacement(String)
     */
00100     private static final Map LAF_REPLACEMENTS;
    static {
        LAF_REPLACEMENTS = new HashMap();
        initializeDefaultReplacements();
    }
    

    // Keys for Overriding Font Settings **************************************

    /**
     * A key for setting a custom FontPolicy for the Plastic L&amp;fs.
     * Used for both the system properties and the UIDefaults table.
     * 
     * @see PlasticLookAndFeel#getFontPolicy()
     * @see PlasticLookAndFeel#setFontPolicy(FontPolicy)
     */
00116     public static final String PLASTIC_FONT_POLICY_KEY = 
        "Plastic.fontPolicy";
        
    /**
     * A key for setting the default control font in Plastic L&amp;fs.
     * Used for both the system properties and the UIDefaults table.
     * 
     * @see FontPolicies#customSettingsPolicy(FontPolicy)
     */
00125     public static final String PLASTIC_CONTROL_FONT_KEY = 
        "Plastic.controlFont";
        
    /**
     * A key for setting the default menu font in Plastic L&amp;fs.
     * Used for both the system properties and the UIDefaults table.
     * 
     * @see FontPolicies#customSettingsPolicy(FontPolicy)
     */
00134     public static final String PLASTIC_MENU_FONT_KEY = 
        "Plastic.menuFont";
        
    /**
     * A key for setting a custom FontPolicy for the Windows L&amp;fs.
     * Used for both the system properties and the UIDefaults table.
     * 
     * @see WindowsLookAndFeel#getFontPolicy()
     * @see WindowsLookAndFeel#setFontPolicy(FontPolicy)
     */
00144     public static final String WINDOWS_FONT_POLICY_KEY = 
        "Windows.fontPolicy";
        
    /**
     * A key for setting the default control font in the Windows L&amp;f.
     * Used for both the system properties and the UIDefaults table.
     * 
     * @see FontPolicies#customSettingsPolicy(FontPolicy)
     */
00153     public static final String WINDOWS_CONTROL_FONT_KEY = 
        "Windows.controlFont";
        
    /**
     * A key for setting the default menu font in the Windows L&amp;f.
     * Used for both the system properties and the UIDefaults table.
     * 
     * @see FontPolicies#customSettingsPolicy(FontPolicy)
     */
00162     public static final String WINDOWS_MENU_FONT_KEY = 
        "Windows.menuFont";
        
    /**
     * A convenience constant for the standard Swing system property key 
     * that configures the use of system fonts.
     * 
     * @see #getUseSystemFonts()
     * @see #setUseSystemFonts(boolean)
     */
00172     public static final String USE_SYSTEM_FONTS_KEY =
        "swing.useSystemFontSettings";
        
    /**
     * A convenience constant for the standard Swing UIDefaults key 
     * that configures the use of system fonts.
     * 
     * @see #getUseSystemFonts()
     * @see #setUseSystemFonts(boolean)
     */
00182     public static final String USE_SYSTEM_FONTS_APP_KEY =
        "Application.useSystemFontSettings";
    
    
    // Keys for Micro Layout Policies *****************************************

    /**
     * A UIManager key for setting a custom MicroLayoutPolicy 
     * for the Plastic L&amp;fs.
     * 
     * @see PlasticLookAndFeel#getMicroLayoutPolicy()
     * @see PlasticLookAndFeel#setMicroLayoutPolicy(MicroLayout)
     */
00195     public static final String PLASTIC_MICRO_LAYOUT_POLICY_KEY = 
        "Plastic.MicroLayoutPolicy";
        

    /**
     * A UIManager key for setting a custom MicroLayoutPolicy 
     * for the Windows L&amp;f.
     * 
     * @see WindowsLookAndFeel#getMicroLayoutPolicy()
     * @see WindowsLookAndFeel#setMicroLayoutPolicy(MicroLayout)
     */
00206     public static final String WINDOWS_MICRO_LAYOUT_POLICY_KEY = 
        "Windows.MicroLayoutPolicy";
        

    // Optional Global User Properties ****************************************

    public static final String DEFAULT_ICON_SIZE_KEY =
        "jgoodies.defaultIconSize";
        
    public static final String USE_NARROW_BUTTONS_KEY =
        "jgoodies.useNarrowButtons";
        
    public static final String TAB_ICONS_ENABLED_KEY =
        "jgoodies.tabIconsEnabled";
        
    /**
     * A UIDefaults key for the popup drop shadow enablement.
     * 
     * @see #isPopupDropShadowEnabled()
     * @see #setPopupDropShadowEnabled(boolean)
     */
00227     public static final String POPUP_DROP_SHADOW_ENABLED_KEY =
        "jgoodies.popupDropShadowEnabled";
        
    
    /**
     * A UIDefaults key for enabling/disabling the new high-resolution 
     * gray filter.
     * 
     * @since 2.1
     */
00237     public static final String HI_RES_GRAY_FILTER_ENABLED_KEY = 
        "HiResGrayFilterEnabled";
    
    

    // Optional Client Properties *********************************************

    /** 
     * A JScrollPane client property key for a hint 
     * that the scroll pane border should be etched.
     */
00248     public static final String IS_ETCHED_KEY = "jgoodies.isEtched";

    /** 
     * A client property key for JMenuBar and JToolBar style hints.
     * Available styles are: <code>HeaderStyle.Single</code> and
     * <code>HeaderStyle.Both</code>.
     * 
     * @see HeaderStyle
     * @see BorderStyle
     */
00258     public static final String HEADER_STYLE_KEY = "jgoodies.headerStyle";

    /** 
     * A JMenu client property key for a hint 
     * that the menu items in the menu have no icons.
     */
00264     public static final String NO_ICONS_KEY = "jgoodies.noIcons";

    /** 
     * A JPopupMenu client property key for a hint that the border
     * shall have no extra margin. This is useful if the popup menu 
     * contains only a single component, for example a scrollpane.
     */
00271     public static final String NO_MARGIN_KEY = "JPopupMenu.noMargin";

    /** 
     * A JTree client property key for a tree line style hint.
     * 
     * @see #TREE_LINE_STYLE_ANGLED_VALUE
     * @see #TREE_LINE_STYLE_NONE_VALUE
     */
00279     public static final String TREE_LINE_STYLE_KEY = 
        "JTree.lineStyle";

    /** 
     * A JTree client property value that indicates that lines shall be drawn.
     * 
     * @see #TREE_LINE_STYLE_KEY
     */
00287     public static final String TREE_LINE_STYLE_ANGLED_VALUE = 
        "Angled";

    /** 
     * A JTree client property value that indicates that lines shall be hidden.
     * 
     * @see #TREE_LINE_STYLE_KEY
     */
00295     public static final String TREE_LINE_STYLE_NONE_VALUE   = 
        "None";

    /** 
     * A JTabbedPane client property key that indicates 
     * that no content border shall be painted. 
     * Supported by the JGoodies Windows L&amp;f and the 
     * JGoodies Plastic look&amp;feel family.
     * This effect will be achieved also if the EMBEDDED property is true.
     */
00305     public static final String NO_CONTENT_BORDER_KEY =
        "jgoodies.noContentBorder";

    /**
     * A JTabbedPane client property key that indicates
     * that tabs are painted with a special embedded appearance. 
     * Supported by the JGoodies Windows L&amp;f and the 
     * JGoodies Plastic look&amp;feel family.
     * As a side effect of the embedded appearance, 
     * supporting L&amp;fs won't paint the content border.
     */
00316     public static final String EMBEDDED_TABS_KEY = 
        "jgoodies.embeddedTabs";
    
    /**
     * A JComboBox client property key for the combo's 
     * popup menu prototype display value. If this key is set,
     * the value will be used to compute the combo popup width.
     * This optional feature is supported by the JGoodies Windows L&amp;f
     * as well as the JGoodies Plastic L&amp;fs.
     */
00326     public static final String COMBO_POPUP_PROTOTYPE_DISPLAY_VALUE_KEY =
        "ComboBox.popupPrototypeDisplayValue";


    /**
     * A client property key for combo box renderer components.
     * The Boolean value indicates whether the component's border 
     * can be temporarily removed when painting the current value or not. 
     * This is useful for custom renderers used with Windows combo boxes.
     * 
     * @see WindowsComboBoxUI#paintCurrentValue(java.awt.Graphics, java.awt.Rectangle, boolean)
     * @since 2.1
     */
00339     public static final String COMBO_RENDERER_IS_BORDER_REMOVABLE =
        "isBorderRemovable";
    
    
    /**
     * A client property key for components with a disabled icon
     * such as buttons, labels, and tabbed panes. Specifies whether
     * the new high resolution gray filter shall be used to compute
     * a disabled icon - if none is available.
     * 
     * @since 2.1
     */
00351     public static final String HI_RES_DISABLED_ICON_CLIENT_KEY = 
        "generateHiResDisabledIcon";
    
    
    // System Settings ********************************************************
    
    /**
     * Holds the Boolean system property value for the use of system fonts, 
     * or null, if it has not been set. If this property has been 
     * set, we log a message about the choosen value.
     * 
     * @see #getUseSystemFonts()
     */
00364     private static final Boolean USE_SYSTEM_FONTS_SYSTEM_VALUE = 
        LookUtils.getBooleanSystemProperty(
                USE_SYSTEM_FONTS_KEY, "Use system fonts");
    

    /**
     * Holds the Boolean system property value for the use of narrow buttons
     * or null, if it has not been set. If this property has been 
     * set, we log a message about the choosen value.
     * 
     * @see #getUseNarrowButtons()
     */
00376     private static final Boolean USE_NARROW_BUTTONS_SYSTEM_VALUE = 
        LookUtils.getBooleanSystemProperty(
                USE_NARROW_BUTTONS_KEY, "Use narrow buttons");
    

    /**
     * Holds the Boolean system property value for the tab icon enablement, 
     * or null, if it has not been set. If this property has been 
     * set, we log a message about the choosen value.
     * 
     * @see #isTabIconsEnabled()
     */
00388     private static final Boolean TAB_ICONS_ENABLED_SYSTEM_VALUE = 
        LookUtils.getBooleanSystemProperty(
                TAB_ICONS_ENABLED_KEY, "Icons in tabbed panes");
    

    /**
     * Holds the Boolean system property value for the popup drop shadow
     * enablement, or null, if it has not been set. If this property has been 
     * set, we log a message about the choosen value.<p>
     * 
     * This property just set the feature's enablement, not its actual 
     * activation. For example, drop shadows are always inactive on 
     * the Mac OS X, because this platform already provides shadows. 
     * The activation is requested in <code>#isPopupDropShadowActive</code>.
     * 
     * @see #isPopupDropShadowEnabled()
     * @see #isPopupDropShadowActive()
     */
00406     private static final Boolean POPUP_DROP_SHADOW_ENABLED_SYSTEM_VALUE = 
        LookUtils.getBooleanSystemProperty(
                POPUP_DROP_SHADOW_ENABLED_KEY, "Popup drop shadows");
    
    
    // Private ****************************************************************

    private static final Dimension DEFAULT_ICON_SIZE = 
        new Dimension(20, 20);

    private Options() {
        // Override default constructor; prevents instantiation.
    }


    // Accessing Options ******************************************************

    /**
     * Returns whether native system fonts shall be used, <code>true</code>
     * by default unless disabled in the system properties or UIManager.
     * 
     * @return true unless disabled in the system properties or UIManager 
     * 
     * @see #setUseSystemFonts(boolean)
     * @see #USE_SYSTEM_FONTS_KEY
     * @see #USE_SYSTEM_FONTS_APP_KEY
     */
00433     public static boolean getUseSystemFonts() {
        return USE_SYSTEM_FONTS_SYSTEM_VALUE != null
            ? USE_SYSTEM_FONTS_SYSTEM_VALUE.booleanValue()
            : !Boolean.FALSE.equals(UIManager.get(USE_SYSTEM_FONTS_APP_KEY));
    }

    /**
     * Sets a value in the UIManager to indicate, 
     * that a look&amp;feel may use the native system fonts.
     * 
     * @param useSystemFonts   true to enable system fonts in the UIManager
     * 
     * @see #getUseSystemFonts()
     * @see #USE_SYSTEM_FONTS_KEY
     * @see #USE_SYSTEM_FONTS_APP_KEY
     */
00449     public static void setUseSystemFonts(boolean useSystemFonts) {
        UIManager.put(USE_SYSTEM_FONTS_APP_KEY, Boolean.valueOf(useSystemFonts));
    }

    /**
     * Returns the default icon size that is used in menus, menu items and
     * toolbars. Menu items that have no icon set are aligned using the default
     * icon dimensions.
     * 
     * @return the dimension of the default icon
     * 
     * @see #setDefaultIconSize(Dimension)
     */
00462     public static Dimension getDefaultIconSize() {
        Dimension size = UIManager.getDimension(DEFAULT_ICON_SIZE_KEY);
        return size == null ? DEFAULT_ICON_SIZE : size;
    }

    /**
     * Sets the default icon size.
     * 
     * @param defaultIconSize   the default icon size to set
     * 
     * @see #getDefaultIconSize()
     */
00474     public static void setDefaultIconSize(Dimension defaultIconSize) {
        UIManager.put(DEFAULT_ICON_SIZE_KEY, defaultIconSize);
    }

    /**
     * Checks and answers if we shall use narrow button margins of 4 pixels.
     * As of the Looks version 1.4 the default value is <code>true</code>
     * (narrow) for the JGoodies Windows L&amp;F and the JGoodies Plastic 
     * L&amp;F family. The native Windows L&amp;F uses narrow margins too.
     * The default can be disabled in the system properties or UIManager.<p>
     * 
     * <strong>Note:</strong> Using narrow button margins can potentially cause 
     * compatibility issues, if you don't take care that command buttons with
     * short labels (OK) get a reasonable minimum width. Therefore you can
     * get back to wide button margins using <code>#setUseNarrowButtons</code>.
     * Sun's L&amp;F implementations use a wider button margin of 14 pixels.<p> 
     * 
     * Narrow button margins make it easier to give buttons in a button bar
     * the same width, even if some button labels are long. And narrow margins
     * are useful for embedded command buttons that just have an icon, 
     * or an ellipsis (...). Many style guides recommend to use a minimum
     * button width in command button bars, for example 50 dialog units on 
     * Windows. Such a minimum width makes it easier to click a button,
     * just because the button area has a reasonable minimum size.
     * To ensure a reasonable button minimum width, you may configure a
     * LayoutManager, use a special panel for command button bars, or
     * a factory that vends command button bars.<p>
     * 
     * The JGoodies FormLayout can layout button bars that comply with both the 
     * MS Windows Layout Guidelines and the Mac Aqua Human Interface Guidelines.
     * The JGoodies Forms contains a ButtonBarBuilder to build command button 
     * bars, and a ButtonBarFactory that vends frequently used button bars.
     * 
     * @return <code>true</code> (default) if all buttons shall use narrow 
     *     margins, <code>false</code> for wider margins
     *     
     * @see #setUseNarrowButtons(boolean)
     * @see #USE_NARROW_BUTTONS_KEY
     */
00513     public static boolean getUseNarrowButtons() {
        return USE_NARROW_BUTTONS_SYSTEM_VALUE != null
            ? USE_NARROW_BUTTONS_SYSTEM_VALUE.booleanValue()
            : !Boolean.FALSE.equals(UIManager.get(USE_NARROW_BUTTONS_KEY));
    }

    /**
     * Globally sets the use narrow or standard button margins.<p>
     * 
     * In previous versions of the JGoodies Looks this setting was supported
     * also for individual buttons - primarily to offer visual backward
     * compatibility with Sun L&amp;Fs.
     * 
     * @param b   true to use narrow button margins globally
     * 
     * @see #getUseNarrowButtons()
     * @see #USE_NARROW_BUTTONS_KEY
     */
00531     public static void setUseNarrowButtons(boolean b) {
        UIManager.put(USE_NARROW_BUTTONS_KEY, Boolean.valueOf(b));
    }

    /**
     * Checks and answers if we shall use icons in JTabbedPanes.
     * By default, tab icons are enabled. If the user has set a system property, 
     * we log a message about the choosen style.
     * 
     * @return true if icons in tabbed panes are enabled, false if disabled
     * @see #setTabIconsEnabled(boolean)
     */
00543     public static boolean isTabIconsEnabled() {
        return TAB_ICONS_ENABLED_SYSTEM_VALUE != null
            ? TAB_ICONS_ENABLED_SYSTEM_VALUE.booleanValue()
            : !Boolean.FALSE.equals(UIManager.get(TAB_ICONS_ENABLED_KEY));
    }

    /**
     * Enables or disables the use of icons in JTabbedPanes.
     * 
     * @param b   true to enable icons in tabbed panes, false to disable them
     * 
     * @see #isTabIconsEnabled()
     */
00556     public static void setTabIconsEnabled(boolean b) {
        UIManager.put(TAB_ICONS_ENABLED_KEY, Boolean.valueOf(b));
    }
    
    
    /**
     * Checks and answers whether popup drop shadows are active.
     * This feature shall be inactive with toolkits that use 
     * native drop shadows, such as Aqua on the Mac OS X.
     * It is also inactive if the ShadowPopup cannot snapshot
     * the desktop background (due to security and AWT exceptions).
     * Otherwise the feature's enablement state is returned.<p>
     * 
     * Currently only the Mac OS X is detected as platform where
     * the toolkit uses native drop shadows.
     * 
     * @return true if drop shadows are active, false if inactive
     * 
     * @see #isPopupDropShadowEnabled()
     * @see #setPopupDropShadowEnabled(boolean)
     */
00577     public static boolean isPopupDropShadowActive() {
        return !LookUtils.getToolkitUsesNativeDropShadows() 
             && ShadowPopup.canSnapshot()
             && isPopupDropShadowEnabled(); 
    }

    /**
     * Checks and answers whether the optional drop shadows for 
     * PopupMenus are enabled or disabled.
     * 
     * @return true if drop shadows are enabled, false if disabled
     * 
     * @see #isPopupDropShadowActive()
     * @see #setPopupDropShadowEnabled(boolean)
     * @see #POPUP_DROP_SHADOW_ENABLED_KEY
     */
00593     public static boolean isPopupDropShadowEnabled() {
        if (POPUP_DROP_SHADOW_ENABLED_SYSTEM_VALUE != null)
            return POPUP_DROP_SHADOW_ENABLED_SYSTEM_VALUE.booleanValue();

        Object value = UIManager.get(POPUP_DROP_SHADOW_ENABLED_KEY);
        return value == null 
            ? isPopupDropShadowEnabledDefault() 
            : Boolean.TRUE.equals(value);
    }

    /**
     * Enables or disables drop shadows in PopupMenus. 
     * Note that drop shadows are always inactive on platforms
     * that provide native drop shadows such as the Mac OS X.<p>
     * 
     * It is recommended to enable this feature only on platforms that
     * accelerate translucency and snapshots with the hardware.
     * 
     * @param b  true to enable drop shadows, false to disable them
     * 
     * @see #isPopupDropShadowActive()
     * @see #isPopupDropShadowEnabled()
     */
00616     public static void setPopupDropShadowEnabled(boolean b) {
        UIManager.put(POPUP_DROP_SHADOW_ENABLED_KEY, Boolean.valueOf(b));
    }
    
    /**
     * Checks and answers whether popup drop shadows are enabled
     * or disabled by default. True for modern Windows platforms:
     * Windows 98/ME/2000/XP.<p>
     * 
     * TODO: Consider enabling popup drop shadows on Linux by default.<p>
     * 
     * TODO: Consider moving the default to the individual L&amp;F's
     * component defaults initialization. For example Plastic and Plastic3D
     * may disable this feature by default, while PlasticXP enables it
     * by default.
     * 
     * @return false
     */
00634     private static boolean isPopupDropShadowEnabledDefault() {
        return LookUtils.IS_OS_WINDOWS_MODERN;
    }


    /**
     * Checks and answers whether the new high-resolution gray filter
     * is enabled or disabled. It is enabled by default.
     * 
     * @return true if the high-resolution gray filter is enabled, false if disabled
     * 
     * @see #setHiResGrayFilterEnabled(boolean)
     * @see #HI_RES_GRAY_FILTER_ENABLED_KEY
     * @see #HI_RES_DISABLED_ICON_CLIENT_KEY
     * 
     * @since 2.1
     */
00651     public static boolean isHiResGrayFilterEnabled() {
        return !Boolean.FALSE.equals(UIManager.get(HI_RES_GRAY_FILTER_ENABLED_KEY));
    }

    /**
     * Enables or disables the new high-resolution gray filter globally. 
     * This gray filter can be disabled for individual components using the 
     * client property key <code>HI_RES_DISABLED_ICON_CLIENT_KEY</code>.
     * 
     * @param b  true to enable the high-resolution gray filter, 
     *     false to disable them
     * 
     * @see #isHiResGrayFilterEnabled()
     * 
     * @since 2.1
     */
00667     public static void setHiResGrayFilterEnabled(boolean b) {
        UIManager.put(HI_RES_GRAY_FILTER_ENABLED_KEY, Boolean.valueOf(b));
    }
    
    
    // Look And Feel Replacements *********************************************

    /**
     * Puts a replacement name for a given <code>LookAndFeel</code> 
     * class name in the list of all look and feel replacements.
     * 
     * @param original   the name of the look-and-feel to replace
     * @param replacement   the name of the replacement look-and-feel
     * @see #removeLookAndFeelReplacement(String)
     * @see #getReplacementClassNameFor(String)
     */
00683     public static void putLookAndFeelReplacement(
        String original,
        String replacement) {
        LAF_REPLACEMENTS.put(original, replacement);
    }

    /**
     * Removes a replacement name for a given <code>LookAndFeel</code> 
     * class name from the list of all look and feel replacements.
     * 
     * @param original   the name of the look-and-feel that has been replaced
     * @see #putLookAndFeelReplacement(String, String)
     * @see #getReplacementClassNameFor(String)
     */
00697     public static void removeLookAndFeelReplacement(String original) {
        LAF_REPLACEMENTS.remove(original);
    }

    
    /**
     * A replacement used to replace a given L&f with nothing,
     * that indicates that it should not be used. For example,
     * by default we mark the WindowsClass L&f this way,
     * to remove it from L&f lists that replace the Sun Windows L&f
     * with the JGoodies Windows L&f.
     * 
     * @since 2.1.3
     */
00711     public static final String NO_REPLACEMENT = "none";
    
    /**
     * Initializes some default class name replacements, that replace
     * Sun's Java look and feel, and Sun's Windows look and feel by
     * the appropriate JGoodies replacements.
     * 
     * @see #putLookAndFeelReplacement(String, String)
     * @see #removeLookAndFeelReplacement(String)
     * @see #getReplacementClassNameFor(String)
     */
00722     private static void initializeDefaultReplacements() {
        putLookAndFeelReplacement(
            "javax.swing.plaf.metal.MetalLookAndFeel",
            PLASTIC3D_NAME);
        putLookAndFeelReplacement(
            "com.sun.java.swing.plaf.windows.WindowsLookAndFeel",
            JGOODIES_WINDOWS_NAME);
        putLookAndFeelReplacement(
                "com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeel",
                NO_REPLACEMENT);
    }

    /**
     * Returns the class name that can be used to replace the specified
     * <code>LookAndFeel</code> class name.
     * 
     * @param className   the name of the look-and-feel class
     * @return the name of the suggested replacement class
     * 
     * @see #putLookAndFeelReplacement(String, String)
     * @see #removeLookAndFeelReplacement(String)
     */
00744     public static String getReplacementClassNameFor(String className) {
        String replacement = (String) LAF_REPLACEMENTS.get(className);
        if (replacement == null) {
            return className;
        } else if (replacement.equals(NO_REPLACEMENT)) {
            return null;
        } else {
            return replacement;
        }
    }

    /**
     * Returns the class name for a cross-platform <code>LookAndFeel</code>.
     * 
     * @return the name of a cross platform look-and-feel class
     * @see #getSystemLookAndFeelClassName()
     */
00761     public static String getCrossPlatformLookAndFeelClassName() {
        return PLASTICXP_NAME;
    }

    /**
     * Returns the class name for a system specific <code>LookAndFeel</code>.
     * 
     * @return the name of the system look-and-feel class
     * @see #getCrossPlatformLookAndFeelClassName()
     */
00771     public static String getSystemLookAndFeelClassName() {
        if (LookUtils.IS_OS_WINDOWS)
            return Options.JGOODIES_WINDOWS_NAME;
        else if (LookUtils.IS_OS_MAC)
            return UIManager.getSystemLookAndFeelClassName();
        else
            return getCrossPlatformLookAndFeelClassName();
    }

}

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