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annotate java/src/java/beans/PropertyChangeSupport.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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children 9b96950f2c3c
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bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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1 module java.beans.PropertyChangeSupport;
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2
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3 import java.lang.all;
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4 import java.beans.PropertyChangeListener;
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5 import java.beans.PropertyChangeEvent;
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7 class PropertyChangeSupport {
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8 PropertyChangeListener[][ String ] listeners;
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9 Object obj;
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10 this(Object obj){
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11 this.obj = obj;
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12 }
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13 void addPropertyChangeListener(PropertyChangeListener listener){
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14 addPropertyChangeListener( "", listener );
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15 }
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16 void addPropertyChangeListener(String propertyName, PropertyChangeListener listener){
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17 PropertyChangeListener[] list;
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18 if( auto l = propertyName in listeners ){
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19 list = *l;
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20 }
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21 list ~= listener;
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22 listeners[ propertyName.dup ] = list;
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23 }
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24 void firePropertyChange(String propertyName, bool oldValue, bool newValue){
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25 firePropertyChange( propertyName, Boolean.valueOf(oldValue), Boolean.valueOf(newValue) );
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26 }
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27 void firePropertyChange(String propertyName, int oldValue, int newValue){
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28 firePropertyChange( propertyName, new Integer(oldValue), new Integer(newValue) );
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29 }
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30 void firePropertyChange(String propertyName, Object oldValue, Object newValue){
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31 PropertyChangeListener[] list;
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32 if( auto l = propertyName in listeners ){
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33 list = *l;
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34 }
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35 auto evt = new PropertyChangeEvent( obj, propertyName, oldValue, newValue );
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36 foreach( listener; list ){
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37 if( listener ){
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38 listener.propertyChange( evt );
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39 }
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40 }
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41 }
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42 void removePropertyChangeListener(PropertyChangeListener listener){
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43 removePropertyChangeListener( "", listener );
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44 }
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45 void removePropertyChangeListener(String propertyName, PropertyChangeListener listener){
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46 if( auto list = propertyName in listeners ){
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47 list.length = tango.core.Array.remove( *list, listener );
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48 if( list.length > 0 ){
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49 listeners[ propertyName.dup ] = *list;
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50 }
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51 else{
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52 listeners.remove( propertyName );
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53 }
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54 }
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