[Mark Goebl]

Hi,
I've posted some questions about Printing from Cocoa, now I simpleprinting is ok.
Now I want to print different Pages, like that I want to create my own SubClass from NSView.

I want to create it in Interface Builder to use the GUI for Creating the PrintOut.

When I create a simple Subclass MyView and switch it to JAVA, then I always get an Error "Invalid Number of Arguments" in the MyView Class Info Dialog.

What's wrong?
When Compiling the App. is ok, when running it stops with the following error:
"2002-01-29 22:30:49.654 KD[1877] AppKitJava: uncaught exception NSInvalidArgumentException (_BRIDGEUnmappedInitMethodImp: the java class MyView does not implement any constructor that maps to the Objective C method initWithFrame:.)

I hope somebody cna help me?

Mark

[Kristoff]

Originally posted by Mark Goebl:
<STRONG>Hi,
I've posted some questions about Printing from Cocoa, now I simpleprinting is ok.
Now I want to print different Pages, like that I want to create my own SubClass from NSView.

I want to create it in Interface Builder to use the GUI for Creating the PrintOut.

When I create a simple Subclass MyView and switch it to JAVA, then I always get an Error "Invalid Number of Arguments" in the MyView Class Info Dialog.

What's wrong?
When Compiling the App. is ok, when running it stops with the following error:
"2002-01-29 22:30:49.654 KD[1877] AppKitJava: uncaught exception NSInvalidArgumentException (_BRIDGEUnmappedInitMethodImp: the java class MyView does not implement any constructor that maps to the Objective C method initWithFrame:.)

I hope somebody cna help me?

Mark</STRONG>

Make sure you are implementing ALL of the methods of the abstract parent class.

[Ghoser777]

Originally posted by Kristoff:
<STRONG>

Make sure you are implementing ALL of the methods of the abstract parent class.</STRONG>

Uhmmm, actually, all you need to do is add the constructor as so:
<BLOCKQUOTE><font size="1"face="Geneva, Verdana, Arial">code:</font><HR><pre><font size=1 face=courier>
public mySubClassName(NSRect frame)
{
super(frame);
<font color = brown>//any other initialization u would like to do</font>
}
</font>[/code]

And of course, you'll probably want to override this method:

<BLOCKQUOTE><font size="1"face="Geneva, Verdana, Arial">code:</font><HR><pre><font size=1 face=courier>
public void drawRect(NSRect frame)
{
<font color = brown>//drawing code</font>
}
</font>[/code]

I'm not sure if drawRect is abstract or not, but either way you'll probably want to have drawRect(NSRect) described in your subclass.

HTH,
F-bacher

[Mark Goebl]

It now works,

I have made an error defining the class (but I don't know which) ;-))

I finally tried to go to the tutorial TempController and looked there how to create a CustomView and it works!!

Thanks to everyone.

Mark