# HG changeset patch
# User Frank Benoit <benoit@tionex.de>
# Date 1221571701 -7200
# Node ID 21959e16bc1e3a170130c6453ab56caf8df5a5ac
# Parent  0f7ac29ac72685f7ef20f2bc7cd33cf8bfdf75c8
Improved Listeners access functions.

diff -r 0f7ac29ac726 -r 21959e16bc1e dwt/custom/CTabFolder2Listener.d
--- a/dwt/custom/CTabFolder2Listener.d	Mon Sep 08 01:35:33 2008 +0200
+++ b/dwt/custom/CTabFolder2Listener.d	Tue Sep 16 15:28:21 2008 +0200
@@ -15,6 +15,9 @@
 import dwt.internal.DWTEventListener;
 import dwt.custom.CTabFolderEvent;
 
+import tango.core.Traits;
+import tango.core.Tuple;
+
 /**
  * Classes which implement this interface provide methods
  * that deal with the events that are generated by the CTabFolder
@@ -34,6 +37,13 @@
  * @since 3.0
  */
 public interface CTabFolder2Listener : DWTEventListener {
+    public enum {
+        MINIMIZE,
+        MAXIMIZE,
+        SHOWLIST,
+        RESTORE,
+        CLOSE
+    }
 
 /**
  * Sent when the user clicks on the close button of an item in the CTabFolder.
@@ -113,3 +123,73 @@
  */
 public void showList(CTabFolderEvent event);
 }
+
+
+
+/// Helper class for the dgListener template function
+private class _DgCTabFolder2ListenerT(Dg,T...) : CTabFolder2Listener {
+
+    alias ParameterTupleOf!(Dg) DgArgs;
+    static assert( is(DgArgs == Tuple!(CTabFolderEvent,T)),
+                "Delegate args not correct: "~DgArgs.stringof~" vs. (Event,"~T.stringof~")" );
+
+    Dg dg;
+    T  t;
+    int type;
+
+    private this( int type, Dg dg, T t ){
+        this.type = type;
+        this.dg = dg;
+        static if( T.length > 0 ){
+            this.t = t;
+        }
+    }
+
+    void itemClosed( CTabFolderEvent e ){
+        dg(e,t);
+    }
+    public void close(CTabFolderEvent e){
+        if( type is CTabFolder2Listener.CLOSE ){
+            dg(e,t);
+        }
+    }
+    public void minimize(CTabFolderEvent e){
+        if( type is CTabFolder2Listener.MINIMIZE ){
+            dg(e,t);
+        }
+    }
+    public void maximize(CTabFolderEvent e){
+        if( type is CTabFolder2Listener.MAXIMIZE ){
+            dg(e,t);
+        }
+    }
+    public void restore(CTabFolderEvent e){
+        if( type is CTabFolder2Listener.RESTORE ){
+            dg(e,t);
+        }
+    }
+    public void showList(CTabFolderEvent e){
+        if( type is CTabFolder2Listener.SHOWLIST ){
+            dg(e,t);
+        }
+    }
+}
+
+/++
+ + dgListener creates a class implementing the Listener interface and delegating the call to
+ + handleEvent to the users delegate. This template function will store also additional parameters.
+ +
+ + Examle of usage:
+ + ---
+ + void handleTextEvent ( Event e, int inset ) {
+ +     // ...
+ + }
+ + text.addListener (DWT.FocusOut, dgListener( &handleTextEvent, inset ));
+ + ---
+ +/
+CTabFolder2Listener dgCTabFolder2Listener( Dg, T... )( int type, Dg dg, T args ){
+    return new _DgCTabFolder2ListenerT!( Dg, T )( type, dg, args );
+}
+
+
+
diff -r 0f7ac29ac726 -r 21959e16bc1e dwt/custom/CTabFolderListener.d
--- a/dwt/custom/CTabFolderListener.d	Mon Sep 08 01:35:33 2008 +0200
+++ b/dwt/custom/CTabFolderListener.d	Tue Sep 16 15:28:21 2008 +0200
@@ -15,6 +15,9 @@
 import dwt.internal.DWTEventListener;
 import dwt.custom.CTabFolderEvent;
 
+import tango.core.Traits;
+import tango.core.Tuple;
+
 /**
  * Classes which implement this interface provide a method
  * that deals with events generated in the CTabFolder.
@@ -42,3 +45,46 @@
  */
 public void itemClosed(CTabFolderEvent event);
 }
+
+
+
+/// Helper class for the dgListener template function
+private class _DgCTabFolderListenerT(Dg,T...) : CTabFolderListener {
+
+    alias ParameterTupleOf!(Dg) DgArgs;
+    static assert( is(DgArgs == Tuple!(CTabFolderEvent,T)),
+                "Delegate args not correct" );
+
+    Dg dg;
+    T  t;
+
+    private this( Dg dg, T t ){
+        this.dg = dg;
+        static if( T.length > 0 ){
+            this.t = t;
+        }
+    }
+
+    void itemClosed( CTabFolderEvent e ){
+        dg(e,t);
+    }
+}
+
+/++
+ + dgListener creates a class implementing the Listener interface and delegating the call to
+ + handleEvent to the users delegate. This template function will store also additional parameters.
+ +
+ + Examle of usage:
+ + ---
+ + void handleTextEvent (Event e, int inset ) {
+ +     // ...
+ + }
+ + text.addListener (DWT.FocusOut, dgListener( &handleTextEvent, inset ));
+ + ---
+ +/
+CTabFolderListener dgCTabFolderListener( Dg, T... )( Dg dg, T args ){
+    return new _DgCTabFolderListenerT!( Dg, T )( dg, args );
+}
+
+
+
diff -r 0f7ac29ac726 -r 21959e16bc1e dwt/dwthelper/Runnable.d
--- a/dwt/dwthelper/Runnable.d	Mon Sep 08 01:35:33 2008 +0200
+++ b/dwt/dwthelper/Runnable.d	Tue Sep 16 15:28:21 2008 +0200
@@ -17,7 +17,7 @@
 
     alias ParameterTupleOf!(Dg) DgArgs;
     static assert( is(DgArgs == Tuple!(T)),
-                "Delegate args not correct" );
+                "Delegate args not correct: "~DgArgs.stringof~" vs "~T.stringof );
 
     Dg dg;
     T t;
@@ -36,4 +36,4 @@
 
 _DgRunnableT!(Dg,T) dgRunnable(Dg,T...)( Dg dg, T args ){
     return new _DgRunnableT!(Dg,T)(dg,args);
-}
\ No newline at end of file
+}
diff -r 0f7ac29ac726 -r 21959e16bc1e dwt/events/SelectionListener.d
--- a/dwt/events/SelectionListener.d	Mon Sep 08 01:35:33 2008 +0200
+++ b/dwt/events/SelectionListener.d	Tue Sep 16 15:28:21 2008 +0200
@@ -16,6 +16,9 @@
 public import dwt.internal.DWTEventListener;
 public import dwt.events.SelectionEvent;
 
+import tango.core.Traits;
+import tango.core.Tuple;
+
 /**
  * Classes which implement this interface provide methods
  * that deal with the events that are generated when selection
@@ -34,6 +37,10 @@
  */
 public interface SelectionListener : DWTEventListener {
 
+    public enum {
+        SELECTION,
+        DEFAULTSELECTION
+    }
 /**
  * Sent when selection occurs in the control.
  * <p>
@@ -63,3 +70,47 @@
  */
 public void widgetDefaultSelected(SelectionEvent e);
 }
+
+
+/// DWT extension
+private class _DgSelectionListenerT(Dg,T...) : SelectionListener {
+
+    alias ParameterTupleOf!(Dg) DgArgs;
+    static assert( is(DgArgs == Tuple!(SelectionEvent,T)),
+                "Delegate args not correct: "~DgArgs.stringof~" vs. (Event,"~T.stringof~")" );
+
+    Dg dg;
+    T  t;
+    int type;
+
+    private this( int type, Dg dg, T t ){
+        this.type = type;
+        this.dg = dg;
+        static if( T.length > 0 ){
+            this.t = t;
+        }
+    }
+
+    public void widgetSelected(SelectionEvent e){
+        if( type is SelectionListener.SELECTION ){
+            dg(e,t);
+        }
+    }
+    public void widgetDefaultSelected(SelectionEvent e){
+        if( type is SelectionListener.DEFAULTSELECTION ){
+            dg(e,t);
+        }
+    }
+}
+
+SelectionListener dgSelectionListener( Dg, T... )( int type, Dg dg, T args ){
+    return new _DgSelectionListenerT!( Dg, T )( type, dg, args );
+}
+
+SelectionListener dgSelectionListenerWidgetSelected( Dg, T... )( Dg dg, T args ){
+    return dgSelectionListener( SelectionListener.SELECTION, dg, args );
+}
+SelectionListener dgSelectionListenerWidgetDefaultSelected( Dg, T... )( Dg dg, T args ){
+    return dgSelectionListener( SelectionListener.DEFAULTSELECTION, dg, args );
+}
+
diff -r 0f7ac29ac726 -r 21959e16bc1e dwt/widgets/Listener.d
--- a/dwt/widgets/Listener.d	Mon Sep 08 01:35:33 2008 +0200
+++ b/dwt/widgets/Listener.d	Tue Sep 16 15:28:21 2008 +0200
@@ -57,12 +57,13 @@
 void handleEvent (Event event);
 }
 
+
 /// Helper class for the dgListener template function
 private class _DgListenerT(Dg,T...) : Listener {
 
     alias ParameterTupleOf!(Dg) DgArgs;
     static assert( is(DgArgs == Tuple!(Event,T)),
-                "Delegate args not correct" );
+                "Delegate args not correct: delegate args: ("~DgArgs.stringof~") vs. passed args: ("~Tuple!(Event,T).stringof~")" );
 
     Dg dg;
     T  t;
@@ -97,7 +98,3 @@
 
 
 
-
-
-
-