old-autovect-branch/libjava/classpath/javax/swing/plaf/basic/BasicTableHeaderUI.java

   1 /* BasicTableHeaderUI.java --
   2    Copyright (C) 2004 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 package javax.swing.plaf.basic;
  40
  41 import java.awt.Component;
  42 import java.awt.Dimension;
  43 import java.awt.Graphics;
  44 import java.awt.Rectangle;
  45 import java.awt.event.MouseEvent;
  46
  47 import javax.swing.CellRendererPane;
  48 import javax.swing.JComponent;
  49 import javax.swing.LookAndFeel;
  50 import javax.swing.UIManager;
  51 import javax.swing.border.Border;
  52 import javax.swing.event.MouseInputListener;
  53 import javax.swing.plaf.ComponentUI;
  54 import javax.swing.plaf.TableHeaderUI;
  55 import javax.swing.table.JTableHeader;
  56 import javax.swing.table.TableCellRenderer;
  57 import javax.swing.table.TableColumn;
  58 import javax.swing.table.TableColumnModel;
  59
  60 public class BasicTableHeaderUI extends TableHeaderUI
  61 {
  62
  63   public static ComponentUI createUI(JComponent h)
  64   {
  65     return new BasicTableHeaderUI();
  66   }
  67
  68   protected JTableHeader header;
  69   protected MouseInputListener mouseInputListener;
  70   protected CellRendererPane rendererPane;
  71   protected Border cellBorder;
  72
  73   public class MouseInputHandler implements MouseInputListener
  74   {
  75     public void mouseClicked(MouseEvent e)
  76     {
  77       // TODO: Implement this properly.
  78     }
  79
  80     public void mouseDragged(MouseEvent e)
  81     {
  82       // TODO: Implement this properly.
  83     }
  84
  85     public void mouseEntered(MouseEvent e)
  86     {
  87       // TODO: Implement this properly.
  88     }
  89
  90     public void mouseExited(MouseEvent e)
  91     {
  92       // TODO: Implement this properly.
  93     }
  94
  95     public void mouseMoved(MouseEvent e)
  96     {
  97       // TODO: Implement this properly.
  98     }
  99
 100     public void mousePressed(MouseEvent e)
 101     {
 102       // TODO: Implement this properly.
 103     }
 104
 105     public void mouseReleased(MouseEvent e)
 106     {
 107       // TODO: Implement this properly.
 108     }
 109   }
 110
 111   protected MouseInputListener createMouseInputListener()
 112   {
 113     return new MouseInputHandler();
 114   }
 115
 116   public BasicTableHeaderUI()
 117   {
 118     mouseInputListener = createMouseInputListener();
 119   }
 120
 121   protected void installDefaults()
 122   {
 123     LookAndFeel.installColorsAndFont(header, "TableHeader.background",
 124                                      "TableHeader.foreground",
 125                                      "TableHeader.font");
 126     cellBorder = UIManager.getBorder("TableHeader.cellBorder");
 127   }
 128
 129   protected void installKeyboardActions()
 130   {
 131     // TODO: Implement this properly.
 132   }
 133
 134   protected void installListeners()
 135   {
 136     header.addMouseListener(mouseInputListener);
 137   }
 138
 139   public void installUI(JComponent c)
 140   {
 141     header = (JTableHeader) c;
 142     installDefaults();
 143     installKeyboardActions();
 144     installListeners();
 145   }
 146
 147   protected void uninstallDefaults()
 148   {
 149     header.setBackground(null);
 150     header.setForeground(null);
 151     header.setFont(null);
 152   }
 153
 154   protected void uninstallKeyboardActions()
 155   {
 156     // TODO: Implement this properly.
 157   }
 158
 159   protected void uninstallListeners()
 160   {
 161     header.removeMouseListener(mouseInputListener);
 162   }
 163
 164   public void uninstallUI(JComponent c)
 165   {
 166     uninstallListeners();
 167     uninstallKeyboardActions();
 168     uninstallDefaults();
 169   }
 170
 171   public void paint(Graphics gfx, JComponent c)
 172   {
 173     TableColumnModel cmod = header.getColumnModel();
 174     int ncols = cmod.getColumnCount();
 175     if (ncols == 0)
 176       return;
 177
 178     Rectangle clip = gfx.getClipBounds();
 179     TableCellRenderer defaultRend = header.getDefaultRenderer();
 180
 181     for (int i = 0; i < ncols; ++i)
 182       {
 183         Rectangle bounds = header.getHeaderRect(i);
 184         if (bounds.intersects(clip))
 185           {
 186             Rectangle oldClip = gfx.getClipBounds();
 187             TableColumn col = cmod.getColumn(i);
 188             TableCellRenderer rend = col.getHeaderRenderer();
 189             if (rend == null)
 190               rend = defaultRend;
 191             Object val = col.getHeaderValue();
 192             Component comp = rend.getTableCellRendererComponent(header.getTable(),
 193                                                                 val,
 194                                                                 false, // isSelected
 195                                                                 false, // isFocused
 196                                                                 -1, i);
 197             comp.setFont(header.getFont());
 198             comp.setBackground(header.getBackground());
 199             comp.setForeground(header.getForeground());
 200             if (comp instanceof JComponent)
 201               ((JComponent)comp).setBorder(cellBorder);
 202             gfx.translate(bounds.x, bounds.y);
 203             gfx.setClip(0, 0, bounds.width, bounds.height);
 204             comp.setSize(bounds.width, bounds.height);
 205             comp.setLocation(0,0);
 206             comp.paint(gfx);
 207             gfx.translate(-bounds.x, -bounds.y);
 208             gfx.setClip(oldClip);
 209           }
 210       }
 211
 212   }
 213
 214   public Dimension getPreferredSize(JComponent c)
 215   {
 216     TableColumnModel cmod = header.getColumnModel();
 217     TableCellRenderer defaultRend = header.getDefaultRenderer();
 218     int ncols = cmod.getColumnCount();
 219     Dimension ret = new Dimension(0,0);
 220     int spacing = 0;
 221
 222     if (header.getTable() != null
 223         && header.getTable().getIntercellSpacing() != null)
 224       spacing = header.getTable().getIntercellSpacing().width;
 225
 226     for (int i = 0; i < ncols; ++i)
 227       {
 228         TableColumn col = cmod.getColumn(i);
 229         TableCellRenderer rend = col.getHeaderRenderer();
 230         if (rend == null)
 231           rend = defaultRend;
 232         Object val = col.getHeaderValue();
 233         Component comp = rend.getTableCellRendererComponent(header.getTable(),
 234                                                             val,
 235                                                             false, // isSelected
 236                                                             false, // isFocused
 237                                                             -1, i);
 238         comp.setFont(header.getFont());
 239         comp.setBackground(header.getBackground());
 240         comp.setForeground(header.getForeground());
 241         if (comp instanceof JComponent)
 242           ((JComponent)comp).setBorder(cellBorder);
 243
 244         Dimension d = comp.getPreferredSize();
 245         ret.width += spacing;
 246         ret.height = Math.max(d.height, ret.height);
 247       }
 248     ret.width = cmod.getTotalColumnWidth();
 249     return ret;
 250   }
 251
 252
 253 }