1 /*
   2  * Copyright (c) 2002, 2014, 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 @SuppressWarnings("serial") // Superclass is not serializable across versions
  40 class SynthBorder extends AbstractBorder implements UIResource {
  41     private SynthUI ui;
  42     private Insets insets;
  43 
  44     SynthBorder(SynthUI ui, Insets insets) {
  45         this.ui = ui;
  46         this.insets = insets;
  47     }
  48 
  49     SynthBorder(SynthUI ui) {
  50         this(ui, null);
  51     }
  52 
  53     public void paintBorder(Component c, Graphics g, int x, int y,
  54                             int width, int height) {
  55         JComponent jc = (JComponent)c;
  56         SynthContext context = ui.getContext(jc);
  57         SynthStyle style = context.getStyle();
  58         if (style == null) {
  59             assert false: "SynthBorder is being used outside after the UI " +
  60                           "has been uninstalled";
  61             return;
  62         }
  63         ui.paintBorder(context, g, x, y, width, height);
  64         context.dispose();
  65     }
  66 
  67     /**
  68      * Reinitializes the insets parameter with this Border's current Insets.
  69      * @param c the component for which this border insets value applies
  70      * @param insets the object to be reinitialized
  71      * @return the <code>insets</code> object
  72      */
  73     public Insets getBorderInsets(Component c, Insets insets) {
  74         if (this.insets != null) {
  75             if (insets == null) {
  76                 insets = new Insets(this.insets.top, this.insets.left,
  77                                   this.insets.bottom, this.insets.right);
  78             }
  79             else {
  80                 insets.top    = this.insets.top;
  81                 insets.bottom = this.insets.bottom;
  82                 insets.left   = this.insets.left;
  83                 insets.right  = this.insets.right;
  84             }
  85         }
  86         else if (insets == null) {
  87             insets = new Insets(0, 0, 0, 0);
  88         }
  89         else {
  90             insets.top = insets.bottom = insets.left = insets.right = 0;
  91         }
  92         if (c instanceof JComponent) {
  93             Region region = Region.getRegion((JComponent)c);
  94             Insets margin = null;
  95             if ((region == Region.ARROW_BUTTON || region == Region.BUTTON ||
  96                  region == Region.CHECK_BOX ||
  97                  region == Region.CHECK_BOX_MENU_ITEM ||
  98                  region == Region.MENU || region == Region.MENU_ITEM ||
  99                  region == Region.RADIO_BUTTON ||
 100                  region == Region.RADIO_BUTTON_MENU_ITEM ||
 101                  region == Region.TOGGLE_BUTTON) &&
 102                        (c instanceof AbstractButton)) {
 103                 margin = ((AbstractButton)c).getMargin();
 104             }
 105             else if ((region == Region.EDITOR_PANE ||
 106                       region == Region.FORMATTED_TEXT_FIELD ||
 107                       region == Region.PASSWORD_FIELD ||
 108                       region == Region.TEXT_AREA ||
 109                       region == Region.TEXT_FIELD ||
 110                       region == Region.TEXT_PANE) &&
 111                         (c instanceof JTextComponent)) {
 112                 margin = ((JTextComponent)c).getMargin();
 113             }
 114             else if (region == Region.TOOL_BAR && (c instanceof JToolBar)) {
 115                 margin = ((JToolBar)c).getMargin();
 116             }
 117             else if (region == Region.MENU_BAR && (c instanceof JMenuBar)) {
 118                 margin = ((JMenuBar)c).getMargin();
 119             }
 120             if (margin != null) {
 121                 insets.top += margin.top;
 122                 insets.bottom += margin.bottom;
 123                 insets.left += margin.left;
 124                 insets.right += margin.right;
 125             }
 126         }
 127         return insets;
 128     }
 129 
 130     /**
 131      * This default implementation returns false.
 132      * @return false
 133      */
 134     public boolean isBorderOpaque() {
 135         return false;
 136     }
 137 }