Initial source commit

minorGems/ui/event/ActionListener.h

@@ -0,0 +1,54 @@
+/*
+ * Modification History
+ *
+ * 2001-September-15		Jason Rohrer
+ * Created.
+ *
+ * 2006-July-3		Jason Rohrer
+ * Fixed warnings.
+ */
+ 
+ 
+#ifndef ACTION_LISTENER_INCLUDED
+#define ACTION_LISTENER_INCLUDED 
+
+
+#include "minorGems/ui/GUIComponent.h"
+
+
+/**
+ * An interface for a class that can handle a GUI action.
+ *
+ * @author Jason Rohrer
+ */
+class ActionListener {
+
+
+	public:
+
+        
+        virtual ~ActionListener();
+
+        
+		/**
+		 * Tells this class that an action has been performed.
+		 *
+		 * @param inTarget the GUI component on which the action
+		 *   is being performed.
+		 */
+		virtual void actionPerformed( GUIComponent *inTarget ) = 0;
+
+		
+	};
+
+
+
+inline ActionListener::~ActionListener() {
+    }
+
+
+
+#endif
+
+
+

minorGems/ui/event/ActionListenerList.h

@@ -0,0 +1,143 @@
+/*
+ * Modification History
+ *
+ * 2001-September-15		Jason Rohrer
+ * Created.
+ *
+ * 2001-September-17		Jason Rohrer
+ * Fixed a missing include.
+ *
+ * 2006-July-3		Jason Rohrer
+ * Fixed warnings.
+ *
+ * 2009-December-22  Jason Rohrer
+ * New SimpleVector delete call.
+ *
+ * 2010-May-19  Jason Rohrer
+ * Added call to check if a listener is on the list.
+ */
+ 
+ 
+#ifndef ACTION_LISTENER_LIST_INCLUDED
+#define ACTION_LISTENER_LIST_INCLUDED 
+
+
+#include "ActionListener.h"
+#include "minorGems/ui/GUIComponent.h"
+#include "minorGems/util/SimpleVector.h"
+
+
+/**
+ * A utility class to be subclassed by classes needing
+ * to handle a list of action listeners.
+ *
+ * @author Jason Rohrer
+ */
+class ActionListenerList : protected SimpleVector<ActionListener*> {
+
+
+	public:
+
+
+        
+        virtual ~ActionListenerList();
+        
+
+		
+		/**
+		 * Adds an action listener.
+		 *
+		 * @param inListener the listener to add.  Must 
+		 *   be destroyed by caller after this class has been destroyed.
+		 */
+		virtual void addActionListener( ActionListener *inListener );
+
+
+
+		/**
+		 * Removes an action listener.
+		 *
+		 * @param inListener the listener to remove.  Must 
+		 *   be destroyed by caller.
+		 */
+		virtual void removeActionListener( ActionListener *inListener );
+
+
+
+		/**
+		 * Checks if action listener added
+		 *
+		 * @param inListener the listener to look for.  Must 
+		 *   be destroyed by caller.
+         *
+         * @return true iff listener is on the list
+		 */
+		virtual char isListening( ActionListener *inListener );
+
+
+
+		/**
+		 * Tells all registered listeners that an action has been
+		 * performed.
+		 *
+		 * @param inTarget the GUI component on which the action
+		 *   is being performed.
+		 */
+		virtual void fireActionPerformed( GUIComponent *inTarget );
+
+
+		
+	};
+
+
+
+inline ActionListenerList::~ActionListenerList() {
+
+    }
+
+
+
+inline void ActionListenerList::addActionListener(
+	ActionListener *inListener ) {
+	
+	push_back( inListener );
+	}
+
+
+
+inline void ActionListenerList::removeActionListener(
+	ActionListener *inListener ) {
+
+	deleteElementEqualTo( inListener );
+	}
+
+
+
+inline char ActionListenerList::isListening(
+	ActionListener *inListener ) {
+
+    int index = getElementIndex( inListener );
+    
+    if( index == -1 ) {
+        return false;
+        }
+    else {
+        return true;
+        }
+	}	
+
+
+
+inline void ActionListenerList::fireActionPerformed( GUIComponent *inTarget ) {
+	for( int i=0; i<size(); i++ ) {
+		ActionListener *listener = *( getElement( i ) );
+		listener->actionPerformed( inTarget );
+		}
+	}
+
+
+
+#endif
+
+
+