1 /*
   2  * Copyright (c) 2002, 2006, 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 package javax.swing.plaf.synth;
  26 
  27 import java.awt.*;
  28 import javax.swing.*;
  29 import javax.swing.text.JTextComponent;
  30 import javax.swing.border.*;
  31 import javax.swing.plaf.UIResource;
  32 
  33 /**
  34  * SynthBorder is a border that delegates to a Painter. The Insets
  35  * are determined at construction time.
  36  *
  37  * @author Scott Violet
  38  */
  39 class SynthBorder extends AbstractBorder implements UIResource {
  40     private SynthUI ui;
  41     private Insets insets;
  42 
  43     SynthBorder(SynthUI ui, Insets insets) {
  44         this.ui = ui;
  45         this.insets = insets;
  46     }
  47 
  48     SynthBorder(SynthUI ui) {
  49         this(ui, null);
  50     }
  51 
  52     public void paintBorder(Component c, Graphics g, int x, int y,
  53                             int width, int height) {
  54         JComponent jc = (JComponent)c;
  55         SynthContext context = ui.getContext(jc);
  56         SynthStyle style = context.getStyle();
  57         if (style == null) {
  58             assert false: "SynthBorder is being used outside after the UI " +
  59                           "has been uninstalled";
  60             return;
  61         }
  62         ui.paintBorder(context, g, x, y, width, height);
  63         context.dispose();
  64     }
  65 
  66     /**
  67      * Reinitializes the insets parameter with this Border's current Insets.
  68      * @param c the component for which this border insets value applies
  69      * @param insets the object to be reinitialized
  70      * @return the <code>insets</code> object
  71      */
  72     public Insets getBorderInsets(Component c, Insets insets) {
  73         if (this.insets != null) {
  74             if (insets == null) {
  75                 insets = new Insets(this.insets.top, this.insets.left,
  76                                   this.insets.bottom, this.insets.right);
  77             }
  78             else {
  79                 insets.top    = this.insets.top;
  80                 insets.bottom = this.insets.bottom;
  81                 insets.left   = this.insets.left;
  82                 insets.right  = this.insets.right;
  83             }
  84         }
  85         else if (insets == null) {
  86             insets = new Insets(0, 0, 0, 0);
  87         }
  88         else {
  89             insets.top = insets.bottom = insets.left = insets.right = 0;
  90         }
  91         if (c instanceof JComponent) {
  92             Region region = Region.getRegion((JComponent)c);
  93             Insets margin = null;
  94             if ((region == Region.ARROW_BUTTON || region == Region.BUTTON ||
  95                  region == Region.CHECK_BOX ||
  96                  region == Region.CHECK_BOX_MENU_ITEM ||
  97                  region == Region.MENU || region == Region.MENU_ITEM ||
  98                  region == Region.RADIO_BUTTON ||
  99                  region == Region.RADIO_BUTTON_MENU_ITEM ||
 100                  region == Region.TOGGLE_BUTTON) &&
 101                        (c instanceof AbstractButton)) {
 102                 margin = ((AbstractButton)c).getMargin();
 103             }
 104             else if ((region == Region.EDITOR_PANE ||
 105                       region == Region.FORMATTED_TEXT_FIELD ||
 106                       region == Region.PASSWORD_FIELD ||
 107                       region == Region.TEXT_AREA ||
 108                       region == Region.TEXT_FIELD ||
 109                       region == Region.TEXT_PANE) &&
 110                         (c instanceof JTextComponent)) {
 111                 margin = ((JTextComponent)c).getMargin();
 112             }
 113             else if (region == Region.TOOL_BAR && (c instanceof JToolBar)) {
 114                 margin = ((JToolBar)c).getMargin();
 115             }
 116             else if (region == Region.MENU_BAR && (c instanceof JMenuBar)) {
 117                 margin = ((JMenuBar)c).getMargin();
 118             }
 119             if (margin != null) {
 120                 insets.top += margin.top;
 121                 insets.bottom += margin.bottom;
 122                 insets.left += margin.left;
 123                 insets.right += margin.right;
 124             }
 125         }
 126         return insets;
 127     }
 128 
 129     /**
 130      * This default implementation returns false.
 131      * @return false
 132      */
 133     public boolean isBorderOpaque() {
 134         return false;
 135     }
 136 }