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annotate dwt/custom/CTabFolderListener.d @ 315:21959e16bc1e

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Improved Listeners access functions.
author Frank Benoit <benoit@tionex.de>
date Tue, 16 Sep 2008 15:28:21 +0200
parents 0f12f6bb9739
children
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2005 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 module dwt.custom.CTabFolderListener;
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14
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15 import dwt.internal.DWTEventListener;
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16 import dwt.custom.CTabFolderEvent;
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17
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18 import tango.core.Traits;
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19 import tango.core.Tuple;
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20
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21 /**
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22 * Classes which implement this interface provide a method
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23 * that deals with events generated in the CTabFolder.
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24 * <p>
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25 * After creating an instance of a class that :
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26 * this interface it can be added to a CTabFolder using the
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27 * <code>addCTabFolderListener</code> method and removed using
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28 * the <code>removeCTabFolderListener</code> method. When a
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29 * tab item is closed, the itemClosed method will be invoked.
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30 * </p>
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31 *
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32 * @see CTabFolderEvent
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33 */
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34 public interface CTabFolderListener : DWTEventListener {
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35
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36 /**
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37 * Sent when the user clicks on the close button of an item in the CTabFolder. The item being closed is specified
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38 * in the event.item field. Setting the event.doit field to false will stop the CTabItem from closing.
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39 * When the CTabItem is closed, it is disposed. The contents of the CTabItem (see CTabItem.setControl) will be
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40 * made not visible when the CTabItem is closed.
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41 *
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42 * @param event an event indicating the item being closed
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43 *
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44 * @see CTabItem#setControl
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45 */
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46 public void itemClosed(CTabFolderEvent event);
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47 }
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50
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51 /// Helper class for the dgListener template function
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52 private class _DgCTabFolderListenerT(Dg,T...) : CTabFolderListener {
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53
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54 alias ParameterTupleOf!(Dg) DgArgs;
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55 static assert( is(DgArgs == Tuple!(CTabFolderEvent,T)),
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56 "Delegate args not correct" );
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57
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58 Dg dg;
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59 T t;
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60
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61 private this( Dg dg, T t ){
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62 this.dg = dg;
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63 static if( T.length > 0 ){
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64 this.t = t;
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65 }
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66 }
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67
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68 void itemClosed( CTabFolderEvent e ){
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69 dg(e,t);
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70 }
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71 }
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73 /++
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74 + dgListener creates a class implementing the Listener interface and delegating the call to
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75 + handleEvent to the users delegate. This template function will store also additional parameters.
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76 +
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77 + Examle of usage:
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78 + ---
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79 + void handleTextEvent (Event e, int inset ) {
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80 + // ...
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81 + }
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82 + text.addListener (DWT.FocusOut, dgListener( &handleTextEvent, inset ));
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83 + ---
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84 +/
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85 CTabFolderListener dgCTabFolderListener( Dg, T... )( Dg dg, T args ){
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86 return new _DgCTabFolderListenerT!( Dg, T )( dg, args );
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87 }
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