001 /* ======================================================================== 002 * JCommon : a free general purpose class library for the Java(tm) platform 003 * ======================================================================== 004 * 005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 006 * 007 * Project Info: http://www.jfree.org/jcommon/index.html 008 * 009 * This library is free software; you can redistribute it and/or modify it 010 * under the terms of the GNU Lesser General Public License as published by 011 * the Free Software Foundation; either version 2.1 of the License, or 012 * (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but 015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 017 * License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this library; if not, write to the Free Software 021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 022 * USA. 023 * 024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 025 * in the United States and other countries.] 026 * 027 * ---------------------- 028 * RefineryUtilities.java 029 * ---------------------- 030 * (C) Copyright 2000-2005, by Object Refinery Limited. 031 * 032 * Original Author: David Gilbert (for Object Refinery Limited); 033 * Contributor(s): Jon Iles; 034 * 035 * $Id: RefineryUtilities.java,v 1.11 2007/11/02 17:50:36 taqua Exp $ 036 * 037 * Changes (from 26-Oct-2001) 038 * -------------------------- 039 * 26-Oct-2001 : Changed package to com.jrefinery.ui.*; 040 * 26-Nov-2001 : Changed name to SwingRefinery.java to make it obvious that this is not part of 041 * the Java APIs (DG); 042 * 10-Dec-2001 : Changed name (again) to JRefineryUtilities.java (DG); 043 * 28-Feb-2002 : Moved system properties classes into com.jrefinery.ui.about (DG); 044 * 19-Apr-2002 : Renamed JRefineryUtilities-->RefineryUtilities. Added drawRotatedString() 045 * method (DG); 046 * 21-May-2002 : Changed frame positioning methods to accept Window parameters, as suggested by 047 * Laurence Vanhelsuwe (DG); 048 * 27-May-2002 : Added getPointInRectangle method (DG); 049 * 26-Jun-2002 : Removed unnecessary imports (DG); 050 * 12-Jul-2002 : Added workaround for rotated text (JI); 051 * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG); 052 * 08-May-2003 : Added a new drawRotatedString() method (DG); 053 * 09-May-2003 : Added a drawRotatedShape() method (DG); 054 * 10-Jun-2003 : Updated aligned and rotated string methods (DG); 055 * 29-Oct-2003 : Added workaround for font alignment in PDF output (DG); 056 * 07-Nov-2003 : Added rotateShape() method (DG); 057 * 16-Mar-2004 : Moved rotateShape() method to ShapeUtils.java (DG); 058 * 07-Apr-2004 : Modified text bounds calculation with TextUtilities.getTextBounds() (DG); 059 * 21-May-2004 : Fixed bug 951870 - precision in drawAlignedString() method (DG); 060 * 30-Sep-2004 : Deprecated and moved a number of methods to the TextUtilities class (DG); 061 * 04-Oct-2004 : Renamed ShapeUtils --> ShapeUtilities (DG); 062 * 11-Jan-2005 : Removed deprecated code in preparation for the 1.0.0 release (DG); 063 * 064 */ 065 066 package org.jfree.ui; 067 068 import java.awt.BorderLayout; 069 import java.awt.Color; 070 import java.awt.Container; 071 import java.awt.Dialog; 072 import java.awt.Dimension; 073 import java.awt.Font; 074 import java.awt.GraphicsEnvironment; 075 import java.awt.Point; 076 import java.awt.Rectangle; 077 import java.awt.Toolkit; 078 import java.awt.Window; 079 import java.lang.reflect.Method; 080 import javax.swing.JButton; 081 import javax.swing.JLabel; 082 import javax.swing.JPanel; 083 import javax.swing.JScrollPane; 084 import javax.swing.JTable; 085 import javax.swing.table.TableColumn; 086 import javax.swing.table.TableModel; 087 088 /** 089 * A collection of utility methods relating to user interfaces. 090 * 091 * @author David Gilbert 092 */ 093 public class RefineryUtilities { 094 095 private RefineryUtilities() { 096 } 097 098 /** Access to logging facilities. */ 099 // private static final LogContext logger = Log.createContext(RefineryUtilities.class); 100 101 /** 102 * Computes the center point of the current screen device. If this method is called on JDK 1.4, Xinerama-aware 103 * results are returned. (See Sun-Bug-ID 4463949 for details). 104 * 105 * @return the center point of the current screen. 106 */ 107 public static Point getCenterPoint () 108 { 109 final GraphicsEnvironment localGraphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment(); 110 try 111 { 112 final Method method = GraphicsEnvironment.class.getMethod("getCenterPoint", (Class[]) null); 113 return (Point) method.invoke(localGraphicsEnvironment, (Object[]) null); 114 } 115 catch(Exception e) 116 { 117 // ignore ... will fail if this is not a JDK 1.4 .. 118 } 119 120 final Dimension s = Toolkit.getDefaultToolkit().getScreenSize(); 121 return new Point (s.width / 2, s.height / 2); 122 } 123 124 /** 125 * Computes the maximum bounds of the current screen device. If this method is called on JDK 1.4, Xinerama-aware 126 * results are returned. (See Sun-Bug-ID 4463949 for details). 127 * 128 * @return the maximum bounds of the current screen. 129 */ 130 public static Rectangle getMaximumWindowBounds () 131 { 132 final GraphicsEnvironment localGraphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment(); 133 try 134 { 135 final Method method = GraphicsEnvironment.class.getMethod("getMaximumWindowBounds", (Class[]) null); 136 return (Rectangle) method.invoke(localGraphicsEnvironment, (Object[]) null); 137 } 138 catch(Exception e) 139 { 140 // ignore ... will fail if this is not a JDK 1.4 .. 141 } 142 143 final Dimension s = Toolkit.getDefaultToolkit().getScreenSize(); 144 return new Rectangle (0, 0, s.width, s.height); 145 } 146 147 /** 148 * Positions the specified frame in the middle of the screen. 149 * 150 * @param frame the frame to be centered on the screen. 151 */ 152 public static void centerFrameOnScreen(final Window frame) { 153 positionFrameOnScreen(frame, 0.5, 0.5); 154 } 155 156 /** 157 * Positions the specified frame at a relative position in the screen, where 50% is considered 158 * to be the center of the screen. 159 * 160 * @param frame the frame. 161 * @param horizontalPercent the relative horizontal position of the frame (0.0 to 1.0, 162 * where 0.5 is the center of the screen). 163 * @param verticalPercent the relative vertical position of the frame (0.0 to 1.0, where 164 * 0.5 is the center of the screen). 165 */ 166 public static void positionFrameOnScreen(final Window frame, 167 final double horizontalPercent, 168 final double verticalPercent) { 169 170 final Rectangle s = getMaximumWindowBounds(); 171 final Dimension f = frame.getSize(); 172 final int w = Math.max(s.width - f.width, 0); 173 final int h = Math.max(s.height - f.height, 0); 174 final int x = (int) (horizontalPercent * w) + s.x; 175 final int y = (int) (verticalPercent * h) + s.y; 176 frame.setBounds(x, y, f.width, f.height); 177 178 } 179 180 /** 181 * Positions the specified frame at a random location on the screen while ensuring that the 182 * entire frame is visible (provided that the frame is smaller than the screen). 183 * 184 * @param frame the frame. 185 */ 186 public static void positionFrameRandomly(final Window frame) { 187 positionFrameOnScreen(frame, Math.random(), Math.random()); 188 } 189 190 /** 191 * Positions the specified dialog within its parent. 192 * 193 * @param dialog the dialog to be positioned on the screen. 194 */ 195 public static void centerDialogInParent(final Dialog dialog) { 196 positionDialogRelativeToParent(dialog, 0.5, 0.5); 197 } 198 199 /** 200 * Positions the specified dialog at a position relative to its parent. 201 * 202 * @param dialog the dialog to be positioned. 203 * @param horizontalPercent the relative location. 204 * @param verticalPercent the relative location. 205 */ 206 public static void positionDialogRelativeToParent(final Dialog dialog, 207 final double horizontalPercent, 208 final double verticalPercent) { 209 final Dimension d = dialog.getSize(); 210 final Container parent = dialog.getParent(); 211 final Dimension p = parent.getSize(); 212 213 final int baseX = parent.getX() - d.width; 214 final int baseY = parent.getY() - d.height; 215 final int w = d.width + p.width; 216 final int h = d.height + p.height; 217 int x = baseX + (int) (horizontalPercent * w); 218 int y = baseY + (int) (verticalPercent * h); 219 220 // make sure the dialog fits completely on the screen... 221 final Rectangle s = getMaximumWindowBounds(); 222 x = Math.min(x, (s.width - d.width)); 223 x = Math.max(x, 0); 224 y = Math.min(y, (s.height - d.height)); 225 y = Math.max(y, 0); 226 227 dialog.setBounds(x + s.x, y + s.y, d.width, d.height); 228 229 } 230 231 /** 232 * Creates a panel that contains a table based on the specified table model. 233 * 234 * @param model the table model to use when constructing the table. 235 * 236 * @return The panel. 237 */ 238 public static JPanel createTablePanel(final TableModel model) { 239 240 final JPanel panel = new JPanel(new BorderLayout()); 241 final JTable table = new JTable(model); 242 for (int columnIndex = 0; columnIndex < model.getColumnCount(); columnIndex++) { 243 final TableColumn column = table.getColumnModel().getColumn(columnIndex); 244 final Class c = model.getColumnClass(columnIndex); 245 if (c.equals(Number.class)) { 246 column.setCellRenderer(new NumberCellRenderer()); 247 } 248 } 249 panel.add(new JScrollPane(table)); 250 return panel; 251 252 } 253 254 /** 255 * Creates a label with a specific font. 256 * 257 * @param text the text for the label. 258 * @param font the font. 259 * 260 * @return The label. 261 */ 262 public static JLabel createJLabel(final String text, final Font font) { 263 264 final JLabel result = new JLabel(text); 265 result.setFont(font); 266 return result; 267 268 } 269 270 /** 271 * Creates a label with a specific font and color. 272 * 273 * @param text the text for the label. 274 * @param font the font. 275 * @param color the color. 276 * 277 * @return The label. 278 */ 279 public static JLabel createJLabel(final String text, final Font font, final Color color) { 280 281 final JLabel result = new JLabel(text); 282 result.setFont(font); 283 result.setForeground(color); 284 return result; 285 286 } 287 288 /** 289 * Creates a {@link JButton}. 290 * 291 * @param label the label. 292 * @param font the font. 293 * 294 * @return The button. 295 */ 296 public static JButton createJButton(final String label, final Font font) { 297 298 final JButton result = new JButton(label); 299 result.setFont(font); 300 return result; 301 302 } 303 304 } 305 306