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annotate org.eclipse.jface/src/org/eclipse/jface/dialogs/ControlAnimator.d @ 12:bc29606a740c

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Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
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1 /*******************************************************************************
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2 * Copyright (c) 2006 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 ******************************************************************************/
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13
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14 module org.eclipse.jface.dialogs.ControlAnimator;
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16 import java.lang.all;
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18 import org.eclipse.swt.graphics.Point;
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19 import org.eclipse.swt.graphics.Rectangle;
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20 import org.eclipse.swt.widgets.Control;
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21
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22 /**
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23 * ControlAnimator provides a simple implementation to display or hide a control
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24 * at the bottom of the parent composite. Other animations will be written as
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25 * subclasses of this class. <p>
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26 * Instances of this class can be created using an AnimatorFactory.
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27 *
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28 * @since 3.2
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29 */
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30
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31
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32 public class ControlAnimator {
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33 /** the control that will be displayed or hidden */
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34 protected Control control;
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35
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36 /**
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37 * Constructs a new ControlAnimator instance and passes along the
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38 * control that will be displayed or hidden.
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39 *
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40 * @param control the control that will be displayed or hidden.
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41 */
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42 public this(Control control) {
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43 this.control = control;
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44 }
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45
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46 /**
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47 * Displays or hides a control at the bottom of the parent composite
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48 * and makes use of the control's SWT visible flag.<p>
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49 * Subclasses should override this method.</p>
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50 *
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51 * @param visible <code>true</code> if the control should be shown,
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52 * and <code>false</code> otherwise.
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53 */
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54 public void setVisible(bool visible){
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55 // Using the SWT visible flag to determine if the control has
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56 // already been displayed or hidden. Return if already displayed
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57 // and visible is true, or if already hidden and visible is false.
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58 if (!(control.isVisible() ^ visible))
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59 return;
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60 control.setVisible(visible);
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61 Rectangle parentBounds = control.getParent().getBounds();
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62 int bottom = parentBounds.height;
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63 int endY = visible ? bottom - control.getBounds().height
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64 : bottom;
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65 Point loc = control.getLocation();
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66 control.setLocation(loc.x,endY);
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67 }
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68
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69 }