src/org/nbgit/ui/log/Divider.java

   1 /*
   2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
   3  *
   4  * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
   5  *
   6  * The contents of this file are subject to the terms of either the GNU
   7  * General Public License Version 2 only ("GPL") or the Common
   8  * Development and Distribution License("CDDL") (collectively, the
   9  * "License"). You may not use this file except in compliance with the
  10  * License. You can obtain a copy of the License at
  11  * http://www.netbeans.org/cddl-gplv2.html
  12  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
  13  * specific language governing permissions and limitations under the
  14  * License.  When distributing the software, include this License Header
  15  * Notice in each file and include the License file at
  16  * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
  17  * particular file as subject to the "Classpath" exception as provided
  18  * by Sun in the GPL Version 2 section of the License file that
  19  * accompanied this code. If applicable, add the following below the
  20  * License Header, with the fields enclosed by brackets [] replaced by
  21  * your own identifying information:
  22  * "Portions Copyrighted [year] [name of copyright owner]"
  23  *
  24  * Contributor(s):
  25  *
  26  * The Original Software is NetBeans. The Initial Developer of the Original
  27  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
  28  * Microsystems, Inc. All Rights Reserved.
  29  * Portions Copyright 2008 Alexander Coles (Ikonoklastik Productions).
  30  *
  31  * If you wish your version of this file to be governed by only the CDDL
  32  * or only the GPL Version 2, indicate your decision by adding
  33  * "[Contributor] elects to include this software in this distribution
  34  * under the [CDDL or GPL Version 2] license." If you do not indicate a
  35  * single choice of license, a recipient has the option to distribute
  36  * your version of this file under either the CDDL, the GPL Version 2 or
  37  * to extend the choice of license to its licensees as provided above.
  38  * However, if you add GPL Version 2 code and therefore, elected the GPL
  39  * Version 2 license, then the option applies only if the new code is
  40  * made subject to such option by the copyright holder.
  41  */
  42 package org.nbgit.ui.log;
  43
  44 import java.awt.Color;
  45 import java.awt.Dimension;
  46 import java.awt.Graphics;
  47 import java.awt.event.ActionEvent;
  48 import java.awt.event.ActionListener;
  49 import java.awt.event.MouseEvent;
  50 import javax.swing.JPanel;
  51 import javax.swing.UIManager;
  52 import org.openide.util.NbBundle;
  53
  54 /**
  55  * @author Maros Sandor
  56  */
  57 class Divider extends JPanel {
  58
  59     public static final int DIVIDER_CLICKED = 1;
  60     public static final int DOWN = 0;
  61     public static final int UP = 1;
  62     private Color bkg;
  63     private Color sbkg;
  64     private Color arrowColor;
  65     private Color selectedArrowColor;
  66     private ActionListener listener;
  67     private int arrowDirection;
  68
  69     public Divider(ActionListener listener) {
  70         this.listener = listener;
  71         enableEvents(MouseEvent.MOUSE_ENTERED | MouseEvent.MOUSE_EXITED | MouseEvent.MOUSE_CLICKED);
  72         bkg = getBackground();
  73         sbkg = UIManager.getColor("TextField.selectionBackground"); // NOI18N
  74         selectedArrowColor = UIManager.getColor("TextField.selectionForeground"); // NOI18N
  75         arrowColor = UIManager.getColor("TextField.inactiveForeground"); // NOI18N
  76         getAccessibleContext().setAccessibleName(NbBundle.getMessage(Divider.class, "ACSN_Divider"));
  77         getAccessibleContext().setAccessibleDescription(NbBundle.getMessage(Divider.class, "ACSD_Divider"));
  78     }
  79
  80     @Override
  81     public Dimension getPreferredSize() {
  82         return new Dimension(Integer.MAX_VALUE, 6);
  83     }
  84
  85     @Override
  86     public Dimension getMaximumSize() {
  87         return new Dimension(Integer.MAX_VALUE, 6);
  88     }
  89
  90     public void setArrowDirection(int direction) {
  91         arrowDirection = direction;
  92     }
  93
  94     @Override
  95     protected void processMouseEvent(MouseEvent e) {
  96         super.processMouseEvent(e);
  97         if (e.getID() == MouseEvent.MOUSE_ENTERED) {
  98             setBackground(sbkg);
  99             repaint();
 100         }
 101         if (e.getID() == MouseEvent.MOUSE_EXITED) {
 102             setBackground(bkg);
 103             repaint();
 104         }
 105         if (e.getID() == MouseEvent.MOUSE_CLICKED) {
 106             listener.actionPerformed(new ActionEvent(this, DIVIDER_CLICKED, ""));
 107         }
 108     }
 109
 110     @Override
 111     protected void paintComponent(Graphics g) {
 112         super.paintComponent(g);
 113         Dimension dim = getSize();
 114         if (getBackground().equals(bkg)) {
 115             g.setColor(arrowColor);
 116         } else {
 117             g.setColor(selectedArrowColor);
 118         }
 119         int mid = dim.width / 2;
 120         if (arrowDirection == DOWN) {
 121             g.drawLine(mid - 4, 1, mid + 4, 1);
 122             g.drawLine(mid - 3, 2, mid + 3, 2);
 123             g.drawLine(mid - 2, 3, mid + 2, 3);
 124             g.drawLine(mid - 1, 4, mid + 1, 4);
 125         } else if (arrowDirection == UP) {
 126             g.drawLine(mid - 4, 4, mid + 4, 4);
 127             g.drawLine(mid - 3, 3, mid + 3, 3);
 128             g.drawLine(mid - 2, 2, mid + 2, 2);
 129             g.drawLine(mid - 1, 1, mid + 1, 1);
 130         }
 131     }
 132 }