Package org.jfree.ui

Source Code of org.jfree.ui.RefineryUtilities

/* ========================================================================
* JCommon : a free general purpose class library for the Java(tm) platform
* ========================================================================
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info:  http://www.jfree.org/jcommon/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ----------------------
* RefineryUtilities.java
* ----------------------
* (C) Copyright 2000-2005, by Object Refinery Limited.
*
* Original Author:  David Gilbert (for Object Refinery Limited);
* Contributor(s):   Jon Iles;
*
* $Id: RefineryUtilities.java,v 1.12 2010/08/19 13:09:51 taqua Exp $
*
* Changes (from 26-Oct-2001)
* --------------------------
* 26-Oct-2001 : Changed package to com.jrefinery.ui.*;
* 26-Nov-2001 : Changed name to SwingRefinery.java to make it obvious that this is not part of
*               the Java APIs (DG);
* 10-Dec-2001 : Changed name (again) to JRefineryUtilities.java (DG);
* 28-Feb-2002 : Moved system properties classes into com.jrefinery.ui.about (DG);
* 19-Apr-2002 : Renamed JRefineryUtilities-->RefineryUtilities.  Added drawRotatedString()
*               method (DG);
* 21-May-2002 : Changed frame positioning methods to accept Window parameters, as suggested by
*               Laurence Vanhelsuwe (DG);
* 27-May-2002 : Added getPointInRectangle method (DG);
* 26-Jun-2002 : Removed unnecessary imports (DG);
* 12-Jul-2002 : Added workaround for rotated text (JI);
* 14-Oct-2002 : Fixed errors reported by Checkstyle (DG);
* 08-May-2003 : Added a new drawRotatedString() method (DG);
* 09-May-2003 : Added a drawRotatedShape() method (DG);
* 10-Jun-2003 : Updated aligned and rotated string methods (DG);
* 29-Oct-2003 : Added workaround for font alignment in PDF output (DG);
* 07-Nov-2003 : Added rotateShape() method (DG);
* 16-Mar-2004 : Moved rotateShape() method to ShapeUtils.java (DG);
* 07-Apr-2004 : Modified text bounds calculation with TextUtilities.getTextBounds() (DG);
* 21-May-2004 : Fixed bug 951870 - precision in drawAlignedString() method (DG);
* 30-Sep-2004 : Deprecated and moved a number of methods to the TextUtilities class (DG);
* 04-Oct-2004 : Renamed ShapeUtils --> ShapeUtilities (DG);
* 11-Jan-2005 : Removed deprecated code in preparation for the 1.0.0 release (DG);
*
*/

package org.jfree.ui;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GraphicsEnvironment;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.Window;
import java.lang.reflect.Method;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;

/**
* A collection of utility methods relating to user interfaces.
*
* @author David Gilbert
*/
public class RefineryUtilities {

    private RefineryUtilities() {
    }

    /**
     * Computes the center point of the current screen device. If this method is called on JDK 1.4, Xinerama-aware
     * results are returned. (See Sun-Bug-ID 4463949 for details).
     *
     * @return the center point of the current screen.
     * @deprecated this method is not useful in multi-screen environments.
     */
    public static Point getCenterPoint ()
    {
      final GraphicsEnvironment localGraphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
      try
      {
        final Method method = GraphicsEnvironment.class.getMethod("getCenterPoint", (Class[]) null);
        return (Point) method.invoke(localGraphicsEnvironment, (Object[]) null);
      }
      catch(Exception e)
      {
        // ignore ... will fail if this is not a JDK 1.4 ..
      }

      final Dimension s = Toolkit.getDefaultToolkit().getScreenSize();
      return new Point (s.width / 2, s.height / 2);
    }

  /**
   * Computes the maximum bounds of the current screen device. If this method is called on JDK 1.4, Xinerama-aware
   * results are returned. (See Sun-Bug-ID 4463949 for details).
   *
   * @return the maximum bounds of the current screen.
   * @deprecated this method is not useful in multi-screen environments.
   */
    public static Rectangle getMaximumWindowBounds ()
    {
      final GraphicsEnvironment localGraphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
      try
      {
        final Method method = GraphicsEnvironment.class.getMethod("getMaximumWindowBounds", (Class[]) null);
        return (Rectangle) method.invoke(localGraphicsEnvironment, (Object[]) null);
      }
      catch(Exception e)
      {
        // ignore ... will fail if this is not a JDK 1.4 ..
      }

      final Dimension s = Toolkit.getDefaultToolkit().getScreenSize();
      return new Rectangle (0, 0, s.width, s.height);
    }

    /**
     * Positions the specified frame in the middle of the screen.
     *
     * @param frame  the frame to be centered on the screen.
     */
    public static void centerFrameOnScreen(final Window frame) {
        positionFrameOnScreen(frame, 0.5, 0.5);
    }

    /**
     * Positions the specified frame at a relative position in the screen, where 50% is considered
     * to be the center of the screen.
     *
     * @param frame  the frame.
     * @param horizontalPercent  the relative horizontal position of the frame (0.0 to 1.0,
     *                           where 0.5 is the center of the screen).
     * @param verticalPercent  the relative vertical position of the frame (0.0 to 1.0, where
     *                         0.5 is the center of the screen).
     */
    public static void positionFrameOnScreen(final Window frame,
                                             final double horizontalPercent,
                                             final double verticalPercent) {

        final Rectangle s = frame.getGraphicsConfiguration().getBounds();
        final Dimension f = frame.getSize();
        final int w = Math.max(s.width - f.width, 0);
        final int h = Math.max(s.height - f.height, 0);
        final int x = (int) (horizontalPercent * w) + s.x;
        final int y = (int) (verticalPercent * h) + s.y;
        frame.setBounds(x, y, f.width, f.height);

    }

    /**
     * Positions the specified frame at a random location on the screen while ensuring that the
     * entire frame is visible (provided that the frame is smaller than the screen).
     *
     * @param frame  the frame.
     */
    public static void positionFrameRandomly(final Window frame) {
        positionFrameOnScreen(frame, Math.random(), Math.random());
    }

    /**
     * Positions the specified dialog within its parent.
     *
     * @param dialog  the dialog to be positioned on the screen.
     */
    public static void centerDialogInParent(final Dialog dialog) {
        positionDialogRelativeToParent(dialog, 0.5, 0.5);
    }

    /**
     * Positions the specified dialog at a position relative to its parent.
     *
     * @param dialog  the dialog to be positioned.
     * @param horizontalPercent  the relative location.
     * @param verticalPercent  the relative location.
     */
    public static void positionDialogRelativeToParent(final Dialog dialog,
                                                      final double horizontalPercent,
                                                      final double verticalPercent) {
      final Container parent = dialog.getParent();
      if (parent == null)
      {
        centerFrameOnScreen(dialog);
        return;
      }

      final Dimension d = dialog.getSize();
      final Dimension p = parent.getSize();

      final int baseX = parent.getX();
      final int baseY = parent.getY();

      final int x = baseX + (int) (horizontalPercent * p.width);
      final int y = baseY + (int) (verticalPercent * p.height);

      // make sure the dialog fits completely on the screen...
      final Rectangle s = parent.getGraphicsConfiguration().getBounds();
      final Rectangle r = new Rectangle(x, y, d.width, d.height);
      dialog.setBounds(r.intersection(s));
    }

    /**
     * Creates a panel that contains a table based on the specified table model.
     *
     * @param model  the table model to use when constructing the table.
     *
     * @return The panel.
     */
    public static JPanel createTablePanel(final TableModel model) {

        final JPanel panel = new JPanel(new BorderLayout());
        final JTable table = new JTable(model);
        for (int columnIndex = 0; columnIndex < model.getColumnCount(); columnIndex++) {
            final TableColumn column = table.getColumnModel().getColumn(columnIndex);
            final Class c = model.getColumnClass(columnIndex);
            if (c.equals(Number.class)) {
                column.setCellRenderer(new NumberCellRenderer());
            }
        }
        panel.add(new JScrollPane(table));
        return panel;

    }

    /**
     * Creates a label with a specific font.
     *
     * @param text  the text for the label.
     * @param font  the font.
     *
     * @return The label.
     */
    public static JLabel createJLabel(final String text, final Font font) {

        final JLabel result = new JLabel(text);
        result.setFont(font);
        return result;

    }

    /**
     * Creates a label with a specific font and color.
     *
     * @param text  the text for the label.
     * @param font  the font.
     * @param color  the color.
     *
     * @return The label.
     */
    public static JLabel createJLabel(final String text, final Font font, final Color color) {

        final JLabel result = new JLabel(text);
        result.setFont(font);
        result.setForeground(color);
        return result;

    }

    /**
     * Creates a {@link JButton}.
     *
     * @param label  the label.
     * @param font  the font.
     *
     * @return The button.
     */
    public static JButton createJButton(final String label, final Font font) {

        final JButton result = new JButton(label);
        result.setFont(font);
        return result;

    }

}

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