RectSelectWidgetFactory.java :  » Swing-Library » jEdit-4.3.1 » org » gjt » sp » jedit » gui » statusbar » Java Open Source

Java Open Source » Swing Library » jEdit 4.3.1 
jEdit 4.3.1 » org » gjt » sp » jedit » gui » statusbar » RectSelectWidgetFactory.java
/*
 * RectSelectWidgetFactory.java - The rectangular selection widget service
 * :tabSize=8:indentSize=8:noTabs=false:
 * :folding=explicit:collapseFolds=1:
 *
 * Copyright (C) 2008 Matthieu Casanova
 * Portions Copyright (C) 2001, 2004 Slava Pestov
 * Portions copyright (C) 2001 Mike Dillon
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

package org.gjt.sp.jedit.gui.statusbar;

//{{{ Imports
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import org.gjt.sp.jedit.View;
import org.gjt.sp.jedit.jEdit;
import org.gjt.sp.jedit.textarea.JEditTextArea;
//}}}

/**
 * @author Matthieu Casanova
 * @since jEdit 4.3pre14 
 */
public class RectSelectWidgetFactory implements StatusWidgetFactory
{
    //{{{ getWidget() class
    public Widget getWidget(View view) 
    {
      Widget rect = new RectSelectWidget(view);
      return rect;
    } //}}}

    //{{{ RectSelectWidget class
    private static class RectSelectWidget implements Widget
    {
      private final JLabel rectSelect;
      private final View view;
      RectSelectWidget(final View view)
      {
        rectSelect = new ToolTipLabel();
        rectSelect.setHorizontalAlignment(SwingConstants.CENTER);
        rectSelect.setToolTipText(jEdit.getProperty("view.status.rect-tooltip"));
        this.view = view;
        rectSelect.addMouseListener(new MouseAdapter()
        {
          @Override
          public void mouseClicked(MouseEvent evt)
          {
            JEditTextArea textArea = view.getTextArea();
            if (textArea != null)
              textArea.toggleRectangularSelectionEnabled();
          }
        });
      }
      
      public JComponent getComponent() 
      {
        return rectSelect;
      }
      
      public void update() 
      {
        JEditTextArea textArea = view.getTextArea();
        if (textArea != null)
        {
          rectSelect.setText(textArea.isRectangularSelectionEnabled()
                 ? "R" : "-");
        }
      }
      
            public void propertiesChanged()
      {
        // retarded GTK look and feel!
        Font font = new JLabel().getFont();
        //UIManager.getFont("Label.font");
        FontMetrics fm = rectSelect.getFontMetrics(font);
        Dimension dim = new Dimension(
              Math.max(fm.charWidth('-'),fm.charWidth('R')) + 1,
              fm.getHeight());
        rectSelect.setPreferredSize(dim);
        rectSelect.setMaximumSize(dim);
        
      }
    } //}}}

}
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