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1: /* ======================================================================== 2: * JCommon : a free general purpose class library for the Java(tm) platform 3: * ======================================================================== 4: * 5: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jcommon/index.html 8: * 9: * This library is free software; you can redistribute it and/or modify it 10: * under the terms of the GNU Lesser General Public License as published by 11: * the Free Software Foundation; either version 2.1 of the License, or 12: * (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but 15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17: * License for more details. 18: * 19: * You should have received a copy of the GNU Lesser General Public 20: * License along with this library; if not, write to the Free Software 21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 22: * USA. 23: * 24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 25: * in the United States and other countries.] 26: * 27: * ---------------------- 28: * RefineryUtilities.java 29: * ---------------------- 30: * (C) Copyright 2000-2005, by Object Refinery Limited. 31: * 32: * Original Author: David Gilbert (for Object Refinery Limited); 33: * Contributor(s): Jon Iles; 34: * 35: * $Id: RefineryUtilities.java,v 1.11 2007/11/02 17:50:36 taqua Exp $ 36: * 37: * Changes (from 26-Oct-2001) 38: * -------------------------- 39: * 26-Oct-2001 : Changed package to com.jrefinery.ui.*; 40: * 26-Nov-2001 : Changed name to SwingRefinery.java to make it obvious that this is not part of 41: * the Java APIs (DG); 42: * 10-Dec-2001 : Changed name (again) to JRefineryUtilities.java (DG); 43: * 28-Feb-2002 : Moved system properties classes into com.jrefinery.ui.about (DG); 44: * 19-Apr-2002 : Renamed JRefineryUtilities-->RefineryUtilities. Added drawRotatedString() 45: * method (DG); 46: * 21-May-2002 : Changed frame positioning methods to accept Window parameters, as suggested by 47: * Laurence Vanhelsuwe (DG); 48: * 27-May-2002 : Added getPointInRectangle method (DG); 49: * 26-Jun-2002 : Removed unnecessary imports (DG); 50: * 12-Jul-2002 : Added workaround for rotated text (JI); 51: * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG); 52: * 08-May-2003 : Added a new drawRotatedString() method (DG); 53: * 09-May-2003 : Added a drawRotatedShape() method (DG); 54: * 10-Jun-2003 : Updated aligned and rotated string methods (DG); 55: * 29-Oct-2003 : Added workaround for font alignment in PDF output (DG); 56: * 07-Nov-2003 : Added rotateShape() method (DG); 57: * 16-Mar-2004 : Moved rotateShape() method to ShapeUtils.java (DG); 58: * 07-Apr-2004 : Modified text bounds calculation with TextUtilities.getTextBounds() (DG); 59: * 21-May-2004 : Fixed bug 951870 - precision in drawAlignedString() method (DG); 60: * 30-Sep-2004 : Deprecated and moved a number of methods to the TextUtilities class (DG); 61: * 04-Oct-2004 : Renamed ShapeUtils --> ShapeUtilities (DG); 62: * 11-Jan-2005 : Removed deprecated code in preparation for the 1.0.0 release (DG); 63: * 64: */ 65: 66: package org.jfree.ui; 67: 68: import java.awt.BorderLayout; 69: import java.awt.Color; 70: import java.awt.Container; 71: import java.awt.Dialog; 72: import java.awt.Dimension; 73: import java.awt.Font; 74: import java.awt.GraphicsEnvironment; 75: import java.awt.Point; 76: import java.awt.Rectangle; 77: import java.awt.Toolkit; 78: import java.awt.Window; 79: import java.lang.reflect.Method; 80: import javax.swing.JButton; 81: import javax.swing.JLabel; 82: import javax.swing.JPanel; 83: import javax.swing.JScrollPane; 84: import javax.swing.JTable; 85: import javax.swing.table.TableColumn; 86: import javax.swing.table.TableModel; 87: 88: /** 89: * A collection of utility methods relating to user interfaces. 90: * 91: * @author David Gilbert 92: */ 93: public class RefineryUtilities { 94: 95: private RefineryUtilities() { 96: } 97: 98: /** Access to logging facilities. */ 99: // 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: