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    1   /*
    2    * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
    3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    4    *
    5    * This code is free software; you can redistribute it and/or modify it
    6    * under the terms of the GNU General Public License version 2 only, as
    7    * published by the Free Software Foundation.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle in the LICENSE file that accompanied this code.
   10    *
   11    * This code is distributed in the hope that it will be useful, but WITHOUT
   12    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   13    * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   14    * version 2 for more details (a copy is included in the LICENSE file that
   15    * accompanied this code).
   16    *
   17    * You should have received a copy of the GNU General Public License version
   18    * 2 along with this work; if not, write to the Free Software Foundation,
   19    * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   20    *
   21    * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   package javax.swing.plaf.basic;
   27   
   28   import sun.awt.AppContext;
   29   
   30   import java.awt;
   31   import java.awt.event;
   32   
   33   import javax.swing;
   34   import javax.swing.border;
   35   import javax.swing.plaf;
   36   import javax.swing.text.View;
   37   
   38   
   39   
   40   /**
   41    * BasicToggleButton implementation
   42    * <p>
   43    *
   44    * @author Jeff Dinkins
   45    */
   46   public class BasicToggleButtonUI extends BasicButtonUI {
   47   
   48       private static final Object BASIC_TOGGLE_BUTTON_UI_KEY = new Object();
   49   
   50       private final static String propertyPrefix = "ToggleButton" + ".";
   51   
   52       // ********************************
   53       //          Create PLAF
   54       // ********************************
   55       public static ComponentUI createUI(JComponent b) {
   56           AppContext appContext = AppContext.getAppContext();
   57           BasicToggleButtonUI toggleButtonUI =
   58                   (BasicToggleButtonUI) appContext.get(BASIC_TOGGLE_BUTTON_UI_KEY);
   59           if (toggleButtonUI == null) {
   60               toggleButtonUI = new BasicToggleButtonUI();
   61               appContext.put(BASIC_TOGGLE_BUTTON_UI_KEY, toggleButtonUI);
   62           }
   63           return toggleButtonUI;
   64       }
   65   
   66       protected String getPropertyPrefix() {
   67           return propertyPrefix;
   68       }
   69   
   70   
   71       // ********************************
   72       //          Paint Methods
   73       // ********************************
   74       public void paint(Graphics g, JComponent c) {
   75           AbstractButton b = (AbstractButton) c;
   76           ButtonModel model = b.getModel();
   77   
   78           Dimension size = b.getSize();
   79           FontMetrics fm = g.getFontMetrics();
   80   
   81           Insets i = c.getInsets();
   82   
   83           Rectangle viewRect = new Rectangle(size);
   84   
   85           viewRect.x += i.left;
   86           viewRect.y += i.top;
   87           viewRect.width -= (i.right + viewRect.x);
   88           viewRect.height -= (i.bottom + viewRect.y);
   89   
   90           Rectangle iconRect = new Rectangle();
   91           Rectangle textRect = new Rectangle();
   92   
   93           Font f = c.getFont();
   94           g.setFont(f);
   95   
   96           // layout the text and icon
   97           String text = SwingUtilities.layoutCompoundLabel(
   98               c, fm, b.getText(), b.getIcon(),
   99               b.getVerticalAlignment(), b.getHorizontalAlignment(),
  100               b.getVerticalTextPosition(), b.getHorizontalTextPosition(),
  101               viewRect, iconRect, textRect,
  102               b.getText() == null ? 0 : b.getIconTextGap());
  103   
  104           g.setColor(b.getBackground());
  105   
  106           if (model.isArmed() && model.isPressed() || model.isSelected()) {
  107               paintButtonPressed(g,b);
  108           }
  109   
  110           // Paint the Icon
  111           if(b.getIcon() != null) {
  112               paintIcon(g, b, iconRect);
  113           }
  114   
  115           // Draw the Text
  116           if(text != null && !text.equals("")) {
  117               View v = (View) c.getClientProperty(BasicHTML.propertyKey);
  118               if (v != null) {
  119                  v.paint(g, textRect);
  120               } else {
  121                  paintText(g, b, textRect, text);
  122               }
  123           }
  124   
  125           // draw the dashed focus line.
  126           if (b.isFocusPainted() && b.hasFocus()) {
  127               paintFocus(g, b, viewRect, textRect, iconRect);
  128           }
  129       }
  130   
  131       protected void paintIcon(Graphics g, AbstractButton b, Rectangle iconRect) {
  132           ButtonModel model = b.getModel();
  133           Icon icon = null;
  134   
  135           if(!model.isEnabled()) {
  136               if(model.isSelected()) {
  137                  icon = b.getDisabledSelectedIcon();
  138               } else {
  139                  icon = b.getDisabledIcon();
  140               }
  141           } else if(model.isPressed() && model.isArmed()) {
  142               icon = b.getPressedIcon();
  143               if(icon == null) {
  144                   // Use selected icon
  145                   icon = b.getSelectedIcon();
  146               }
  147           } else if(model.isSelected()) {
  148               if(b.isRolloverEnabled() && model.isRollover()) {
  149                   icon = b.getRolloverSelectedIcon();
  150                   if (icon == null) {
  151                       icon = b.getSelectedIcon();
  152                   }
  153               } else {
  154                   icon = b.getSelectedIcon();
  155               }
  156           } else if(b.isRolloverEnabled() && model.isRollover()) {
  157               icon = b.getRolloverIcon();
  158           }
  159   
  160           if(icon == null) {
  161               icon = b.getIcon();
  162           }
  163   
  164           icon.paintIcon(b, g, iconRect.x, iconRect.y);
  165       }
  166   
  167       /**
  168        * Overriden so that the text will not be rendered as shifted for
  169        * Toggle buttons and subclasses.
  170        */
  171       protected int getTextShiftOffset() {
  172           return 0;
  173       }
  174   
  175   }

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