Java tutorial
/* * Copyright (c) 2001-2013 JGoodies Software GmbH. 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 Software GmbH 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.Font; import javax.swing.plaf.FontUIResource; /** * Provides predefined FontSet implementations. * * @author Karsten Lentzsch * @version $Revision: 1.16 $ * * @see FontSet * @see FontPolicy * @see FontPolicies * * @since 2.0 */ public final class FontSets { private static FontSet logicalFontSet; private FontSets() { // Override default constructor; prevents instantation. } // Default FontSets ******************************************************* /** * Creates and returns a FontSet that is based only * on the given control font. The small font will be * derived from the control font; all other fonts * returned are the control font. * * @param controlFont the font used for all controls * * @return a FontSet based on the given fonts * * @throws NullPointerException if the control font is {@code null} */ public static FontSet createDefaultFontSet(Font controlFont) { return createDefaultFontSet(controlFont, null); } /** * Creates and returns a FontSet that is based on the given control font * and menu font. The small font will be derived from the control font; * all other fonts return, except the menu font, are the control font. * * @param controlFont the font used for all controls * @param menuFont the font used for the menu bar and menu items * * @return a FontSet based on the given fonts * * @throws NullPointerException if the control font is {@code null} */ public static FontSet createDefaultFontSet(Font controlFont, Font menuFont) { return createDefaultFontSet(controlFont, menuFont, null, null, null, null); } /** * Creates and returns a FontSet that is based on the given control font * and menu font. The small font will be derived from the control font; * all other fonts return, except the menu font, are the control font. * * @param controlFont the font used for all controls * @param menuFont the font used for the menu bar and menu items * @param titleFont used for TitledBorder, titles and titled separators * * @return a FontSet based on the given fonts * * @throws NullPointerException if the control font is {@code null} */ public static FontSet createDefaultFontSet(Font controlFont, Font menuFont, Font titleFont) { return createDefaultFontSet(controlFont, menuFont, titleFont, null, null, null); } /** * Creates and returns a FontSet for the given fonts. * If a font is {@code null}, it uses the control font as * fallback. If the small font is {@code null} it will * be derived from the control font. * * @param controlFont used for all controls * @param menuFont used for the menu bar and menu items * @param titleFont used for TitledBorder, titles and titled separators * @param messageFont used for OptionPanes * @param smallFont used for tool tips and similar components * @param windowTitleFont used for internal frame window titles * * @return a FontSet based on the given fonts * * @throws NullPointerException if the control font is {@code null} */ public static FontSet createDefaultFontSet(Font controlFont, Font menuFont, Font titleFont, Font messageFont, Font smallFont, Font windowTitleFont) { return new DefaultFontSet(controlFont, menuFont, titleFont, messageFont, smallFont, windowTitleFont); } // Logical FontSet ******************************************************** /** * Lazily creates and returns the FontSet that returns * the logical fonts specified by the Java runtime environment. * * @return a FontSets that uses the logical fonts specified * by the Java environment */ public static FontSet getLogicalFontSet() { if (logicalFontSet == null) { logicalFontSet = new LogicalFontSet(); } return logicalFontSet; } // Helper Code ************************************************************ private static final class DefaultFontSet implements FontSet { private final FontUIResource controlFont; private final FontUIResource menuFont; private final FontUIResource titleFont; private final FontUIResource messageFont; private final FontUIResource smallFont; private final FontUIResource windowTitleFont; // Instance Creation -------------------------------------------------- /** * Constructs a DefaultFontSet for the given fonts. * If a font is {@code null}, it uses the control font as * fallback. If the small font is {@code null} it will * be derived from the control font. * * @param controlFont used for all controls * @param menuFont used for the menu bar and menu items * @param titleFont used for TitledBorder, titles and titled separators * @param messageFont used for OptionPanes * @param smallFont used for tool tips and similar components * @param windowTitleFont used for internal frame window titles * * @throws NullPointerException if the control font is {@code null} */ public DefaultFontSet(Font controlFont, Font menuFont, Font titleFont, Font messageFont, Font smallFont, Font windowTitleFont) { this.controlFont = new FontUIResource(controlFont); this.menuFont = menuFont != null ? new FontUIResource(menuFont) : this.controlFont; this.titleFont = titleFont != null ? new FontUIResource(titleFont) : this.controlFont; //new FontUIResource(controlFont.deriveFont(Font.BOLD)) this.messageFont = messageFont != null ? new FontUIResource(messageFont) : this.controlFont; this.smallFont = new FontUIResource( smallFont != null ? smallFont : controlFont.deriveFont(controlFont.getSize2D() - 2f)); this.windowTitleFont = windowTitleFont != null ? new FontUIResource(windowTitleFont) : this.titleFont; } // FontSet API -------------------------------------------------------- @Override public FontUIResource getControlFont() { return controlFont; } @Override public FontUIResource getMenuFont() { return menuFont; } @Override public FontUIResource getTitleFont() { return titleFont; } @Override public FontUIResource getWindowTitleFont() { return windowTitleFont; } @Override public FontUIResource getSmallFont() { return smallFont; } @Override public FontUIResource getMessageFont() { return messageFont; } } /** * Looks up and returns the logical fonts as specified * by the Java runtime environment. */ private static final class LogicalFontSet implements FontSet { private FontUIResource controlFont; private FontUIResource titleFont; private FontUIResource systemFont; private FontUIResource smallFont; @Override public FontUIResource getControlFont() { if (controlFont == null) { controlFont = new FontUIResource( Font.getFont("swing.plaf.metal.controlFont", new Font("Dialog", Font.PLAIN, 12))); } return controlFont; } @Override public FontUIResource getMenuFont() { return getControlFont(); } @Override public FontUIResource getTitleFont() { if (titleFont == null) { titleFont = new FontUIResource(getControlFont().deriveFont(Font.BOLD)); } return titleFont; } @Override public FontUIResource getSmallFont() { if (smallFont == null) { smallFont = new FontUIResource( Font.getFont("swing.plaf.metal.smallFont", new Font("Dialog", Font.PLAIN, 10))); } return smallFont; } @Override public FontUIResource getMessageFont() { if (systemFont == null) { systemFont = new FontUIResource( Font.getFont("swing.plaf.metal.systemFont", new Font("Dialog", Font.PLAIN, 12))); } return systemFont; } @Override public FontUIResource getWindowTitleFont() { return getTitleFont(); } } }