doubleimagedisplay.java

dump3 morpheus 0.2.9 src

/**
 * DuMP3 version morpheus_0.2.9 - a duplicate/similar file finder in Java<BR>
 * Copyright 2005 Alexander Gr&auml;sser<BR>
 * All Rights Reserved, http://dump3.sourceforge.net/<BR>
 * <BR>
 * This file is part of DuMP3.<BR>
 * <BR>
 * DuMP3 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 (at your option) any later version.<BR>
 * <BR>
 * DuMP3 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.<BR>
 * <BR>
 * You should have received a copy of the GNU General Public License along with DuMP3; if not, write to the Free Software Foundation, Inc., 51 Franklin St,
 * Fifth Floor, Boston, MA 02110-1301 USA
 */
package net.za.grasser.duplicate.gui.display.image;

import net.za.grasser.duplicate.file.FingerprintFile;
import net.za.grasser.duplicate.gui.display.DoubleDisplay;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.ScrollBar;
import org.eclipse.swt.widgets.ToolBar;
import org.eclipse.swt.widgets.ToolItem;
import com.cloudgarden.resource.SWTResourceManager;

/**
 * This code was edited or generated using CloudGarden's Jigloo SWT/Swing GUI Builder, which is free for non-commercial use. If Jigloo is being used
 * commercially (ie, by a corporation, company or business for any purpose whatever) then you should purchase a license for each developer using Jigloo. Please
 * visit www.cloudgarden.com for details. Use of Jigloo implies acceptance of these licensing terms. A COMMERCIAL LICENSE HAS NOT BEEN PURCHASED FOR THIS
 * MACHINE, SO JIGLOO OR THIS CODE CANNOT BE USED LEGALLY FOR ANY CORPORATE OR COMMERCIAL PURPOSE.
 */
/**
 * This class ...
 * 
 * @author <a href="http://sourceforge.net/sendmessage.php?touser=733840">pyropunk at sourceforge dot net</a>
 * @version $Revision: 1.5 $
 */
public class DoubleImageDisplay extends DoubleDisplay {
  /**
   * <code>canvasLeftImage</code> DoubleImageDisplay -
   */
  private SWTImageCanvas canvasLeftImage;
  /**
   * <code>canvasRightImage</code> DoubleImageDisplay -
   */
  private SWTImageCanvas canvasRightImage;
  /**
   * <code>toolBarMiddle</code> DoubleImageDisplay -
   */
  private ToolBar toolBarMiddle;
  /**
   * <code>toolItemMZoomOut</code> DoubleImageDisplay -
   */
  private ToolItem toolItemMZoomOut;
  /**
   * <code>toolItemMZoomIn</code> DoubleImageDisplay -
   */
  private ToolItem toolItemMZoomIn;

  /**
   * Constructor
   * 
   * @param pArg0
   * @param pArg1
   */
  public DoubleImageDisplay(final Composite pArg0, final int pArg1) {
    super(pArg0, pArg1);
    getCanvasLeftImage();
    getToolBarMiddle();
    getCanvasRightImage();
  }

  /**
   * @return canvasLeftImage
   */
  public SWTImageCanvas getCanvasLeftImage() {
    if (canvasLeftImage == null) {
      canvasLeftImage = new SWTImageCanvas(this, SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE | SWT.V_SCROLL | SWT.H_SCROLL);
      final FormData canvas5leftLData = new FormData();
      canvas5leftLData.width = 63;
      canvas5leftLData.height = 210;
      canvas5leftLData.left = new FormAttachment(0, 1000, 0);
      canvas5leftLData.right = new FormAttachment(500, 1000, -14);
      canvas5leftLData.top = new FormAttachment(0, 1000, 0);
      canvas5leftLData.bottom = new FormAttachment(1000, 1000, 0);
      canvasLeftImage.setLayoutData(canvas5leftLData);
    }
    return canvasLeftImage;
  }

  /**
   * @return canvasRightImage
   */
  public SWTImageCanvas getCanvasRightImage() {
    if (canvasRightImage == null) {
      canvasRightImage = new SWTImageCanvas(this, SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE | SWT.V_SCROLL | SWT.H_SCROLL);
      final FormData canvas5rightLData = new FormData();
      canvas5rightLData.width = 63;
      canvas5rightLData.height = 210;
      canvas5rightLData.left = new FormAttachment(500, 1000, 14);
      canvas5rightLData.right = new FormAttachment(1000, 1000, 0);
      canvas5rightLData.top = new FormAttachment(0, 1000, 0);
      canvas5rightLData.bottom = new FormAttachment(1000, 1000, 0);
      canvasRightImage.setLayoutData(canvas5rightLData);
    }
    return canvasRightImage;
  }

  /**
   * @return ToolBar
   */
  public ToolBar getToolBarMiddle() {
    if (toolBarMiddle == null) {
      toolBarMiddle = new ToolBar(this, SWT.WRAP | SWT.BORDER | SWT.VERTICAL);
      final FormData toolBar3LData = new FormData();
      toolBar3LData.width = 27;
      toolBar3LData.height = 112;
      toolBar3LData.left = new FormAttachment(500, 1000, -14);
      toolBar3LData.right = new FormAttachment(500, 1000, 14);
      toolBar3LData.top = new FormAttachment(0, 1000, 0);
      toolBar3LData.bottom = new FormAttachment(1000, 1000, 0);
      toolBarMiddle.setLayoutData(toolBar3LData);
      getToolItemMZoomIn();
      getToolItemMZoomOut();
    }
    return toolBarMiddle;
  }

  /**
   * @return ToolItem - Returns the toolItemMZoomOut.
   */
  public ToolItem getToolItemMZoomOut() {
    if (toolItemMZoomOut == null) {
      toolItemMZoomOut = new ToolItem(toolBarMiddle, SWT.PUSH);
      toolItemMZoomOut.setImage(SWTResourceManager.getImage("icons/mag_min.gif"));
      toolItemMZoomOut.setToolTipText("zoom out");
      toolItemMZoomOut.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(final SelectionEvent evt) {
          toolItemMZoomOutWidgetSelected(evt);
        }
      });
    }
    return toolItemMZoomOut;
  }

  /**
   * @return ToolItem - Returns the toolItemMZoomIn.
   */
  public ToolItem getToolItemMZoomIn() {
    if (toolItemMZoomIn == null) {
      toolItemMZoomIn = new ToolItem(toolBarMiddle, SWT.PUSH);
      toolItemMZoomIn.setImage(SWTResourceManager.getImage("icons/mag_plus.gif"));
      toolItemMZoomIn.setToolTipText("zoom in");
      toolItemMZoomIn.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(final SelectionEvent evt) {
          toolItemMZoomInWidgetSelected(evt);
        }
      });
    }
    return toolItemMZoomIn;
  }

  /**
   * This method displays two images
   * 
   * @param left
   * @param right
   */
  @Override
  public void display(final FingerprintFile left, final FingerprintFile right) {
    if (left == null) {
      getCanvasLeftImage().unloadImage();
    } else {
      getCanvasLeftImage().loadImage(left.getPath());
    }
    if (right == null) {
      getCanvasRightImage().unloadImage();
    } else {
      getCanvasRightImage().loadImage(right.getPath());
    }
  }

  /**
   * This method should return an instance of this class which does NOT initialize it's GUI elements. This method is ONLY required by Jigloo if the superclass
   * of this class is abstract or non-public. It is not needed in any other situation.
   * 
   * @param parent
   * @param style
   * @return Object
   */
  public static Object getGUIBuilderInstance(final org.eclipse.swt.widgets.Composite parent, final int style) {
    return new DoubleImageDisplay(parent, style, Boolean.FALSE);
  }

  /**
   * This constructor is used by the getGUIBuilderInstance method to provide an instance of this class which has not had it's GUI elements initialized (ie,
   * initGUI is not called in this constructor).
   * 
   * @param parent
   * @param style
   * @param initGUI
   */
  public DoubleImageDisplay(final org.eclipse.swt.widgets.Composite parent, final int style, final Boolean initGUI) {
    super(parent, style);
  }

  /**
   * This method ...
   * 
   * @param evt
   */
  void toolItemMZoomOutWidgetSelected(final SelectionEvent evt) {
    getCanvasLeftImage().zoomOut();
    getCanvasRightImage().zoomOut();
  }

  /**
   * This method ...
   * 
   * @param evt
   */
  void toolItemMZoomInWidgetSelected(final SelectionEvent evt) {
    getCanvasLeftImage().zoomIn();
    getCanvasRightImage().zoomIn();
  }

  /**
   * This method keeps the left and right horizontal scroll bars in synch
   * 
   * @param img
   * @param pMinimum
   * @param pSelection
   * @param pMaximum
   */
  public void scrollX(final SWTImageCanvas img, final int pMinimum, final int pSelection, final int pMaximum) {
    if (img == getCanvasLeftImage()) {
      final ScrollBar r = getCanvasRightImage().getHorizontalBar();
      double s = pSelection;
      s /= pMaximum - pMinimum;
      s *= r.getMaximum() - r.getMinimum();
      s += r.getMinimum();
      r.setSelection((int)s);
      getCanvasRightImage().scrollHorizontally(r, false);
    } else {
      final ScrollBar l = getCanvasLeftImage().getHorizontalBar();
      double s = pSelection;
      s /= pMaximum - pMinimum;
      s *= l.getMaximum() - l.getMinimum();
      s += l.getMinimum();
      l.setSelection((int)s);
      getCanvasLeftImage().scrollHorizontally(l, false);
    }
  }

  /**
   * This method keeps the left and right vertical scroll bars in synch
   * 
   * @param img
   * @param pMinimum
   * @param pSelection
   * @param pMaximum
   */
  public void scrollY(final SWTImageCanvas img, final int pMinimum, final int pSelection, final int pMaximum) {
    if (img == getCanvasLeftImage()) {
      final ScrollBar r = getCanvasRightImage().getVerticalBar();
      double s = pSelection;
      s /= pMaximum - pMinimum;
      s *= r.getMaximum() - r.getMinimum();
      s += r.getMinimum();
      r.setSelection((int)s);
      getCanvasRightImage().scrollVertically(r, false);
    } else {
      final ScrollBar r = getCanvasLeftImage().getVerticalBar();
      double s = pSelection;
      s /= pMaximum - pMinimum;
      s *= r.getMaximum() - r.getMinimum();
      s += r.getMinimum();
      r.setSelection((int)s);
      getCanvasLeftImage().scrollVertically(r, false);
    }
  }
}