Re: New 'GObject' as base for GtkObject?

["Shawn T . Amundson" <amundson eventloop com>]

On Mon, Dec 20, 1999 at 11:15:49PM -0800, Bill Huey wrote:
> 
> Java has interface inheritence as a means of dealing with MI issues.
> 
> Wittness:
> 
> class ThreadInterface : Object
> {
> 	void Run()
> }
> 
> class DragNDropInterface : Object
> {
> 	void dragMethodA();
> 	...
> }
> 
> class TextFrame extends TextFrameParentClass		// inherits all sorts of from the parent object.
> 	implements DragNDropInterface, ThreadInterface	// include these interfaces and fill
> 							// in the object members.
> {
> 	...
> };
> 
> Knowning modern OO design *should* be important for the Gtk core folks
> and not knowing that Java has a semi-form MI is a little peculiar to
> say the least.
> 

And knowning Java would be helpful before using it for examples.  AFAIK,
the above isn't even close to Java code.  A few flaws:

 * A class or interface is extended using 'extends' not ':'
 * You can only use 'implements' for an interface, not classes.
 * Interfaces can not extend 'Object' because object is a class, not
   an interface. (big flaw)

I think you meant something like this:

public class A
{
  void FuncA() {/* ... */};
}

public interface B
{
  void FuncB();
}

public interface C
{
  void FuncC();
}

public class D
    extends A
    implements B, C
{
  public void FuncB() {/* ... */}
  public void FuncC() {/* ... */}
}

-Shawn


--
Shawn T. Amundson                       amundson@eventloop.com	
Research and Development                http://www.eventloop.com/
EventLoop, Inc.                         http://www.snorfle.net/

"The assumption that the universe looks the same in every
 direction is clearly not true in reality." - Stephen Hawking