xmlvm-users

[xmlvm-users] Define the layerClass on UIView

[Mickael B. <mba...@gm...>]

Hi everyone,

I recently switched to the new C iOS API backend, and it really works well !
I'm currently working at implementing an OpenGLES 2.0 interface for
developing my own custom game renderer, based on what was done before on
the old C API backend.

My main concern is about the way to define the layer class on a UIView. As
you may know, I order to use an OpenGLES 2.0 renderer inside a UIView,
Apple recommend to add this method inside your UIView subclass :

+ (Class) layerClass

{

    return [CAEAGLLayer class];

}


But how to reach the same effect using XMLVM ?
It seems that the UIView implementation is based on a ObjC wrapper class
(UIViewWrapper), but it is generated by XMLVM at XCode project generation,
and it seems I have no way to modify it.
As the method to implement is "static" (class method), I didn't find a way
to "override" it inside my UIView java subclass. Using a delegate method
won't help either.

How can I process to achieve what I want to do ?
Should I do the same way as for the old C iOS API, that's to say duplicate
the UIView class and create a UIViewGL class with specific implementation
using the CAEAGLLayer class ? But then, how can I add the "layerClass"
inside the wrapper implementation, as it is now generated automatically by
the new iOS API ?

Mickael

Re: [xmlvm-users] Define the layerClass on UIView

[Arno P. <ar...@pu...>]

checkout trunk/crossmobile, then look for a file called advisor.xml. In 
that file do a grep on "toString". This is an example on how a method 
toString() is injected to class NSString. You should be able to do the 
same for a method called layerClass. Once you have done that, do a "ant 
gen-xmlvm-ios" in crossmobile. This will re-generate the iOS API in 
../xmlvm. For this to work you need to point property sdk.path in 
xmlvm.properties to an installation of the iOS 4.3 SDK (note that 
crossmobile cannot deal with 5.* API yet).

Arno


On 6/25/12 11:53 AM, Mickael Barbeaux wrote:
> Hi everyone,
>
> I recently switched to the new C iOS API backend, and it really works well !
> I'm currently working at implementing an OpenGLES 2.0 interface for
> developing my own custom game renderer, based on what was done before on
> the old C API backend.
>
> My main concern is about the way to define the layer class on a UIView.
> As you may know, I order to use an OpenGLES 2.0 renderer inside a
> UIView, Apple recommend to add this method inside your UIView subclass :
>
> + (Class) layerClass
>
> {
>
>      return [CAEAGLLayer class];
>
> }
>
>
> But how to reach the same effect using XMLVM ?
> It seems that the UIView implementation is based on a ObjC wrapper class
> (UIViewWrapper), but it is generated by XMLVM at XCode project
> generation, and it seems I have no way to modify it.
> As the method to implement is "static" (class method), I didn't find a
> way to "override" it inside my UIView java subclass. Using a delegate
> method won't help either.
>
> How can I process to achieve what I want to do ?
> Should I do the same way as for the old C iOS API, that's to say
> duplicate the UIView class and create a UIViewGL class with specific
> implementation using the CAEAGLLayer class ? But then, how can I add the
> "layerClass" inside the wrapper implementation, as it is now generated
> automatically by the new iOS API ?
>
> Mickael
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>
>
>
> _______________________________________________
> xmlvm-users mailing list
> xml...@li...
> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>

Re: [xmlvm-users] Define the layerClass on UIView

[Mickael B. <mba...@gm...>]

Hi Arno,

Thanks for your really quick answer ! :)

I've just taken a look at what you suggested. But I don't think this
corresponds to what I'm looking for...
I'll be more specific.

If I did understand correctly what does the Advisor, it will add a new
method inside the UIView java class (let's call it "layerClass") and a
native implementation inside org_xmlvm_ios_UIView.m from the code I'll put
inside advisor.xml. I deduced it from what did the toString() method added
inside NSString in advisor.xml :

<class name="NSString">
        <injected-method name="toString" modifier="public">
            <signature>
                <return type="String"/>
            </signature>
            <code language="c" mode="replace">
                <![CDATA[
	return fromNSString(((org_xmlvm_ios_NSObject*)
me)->fields.org_xmlvm_ios_NSObject.wrappedObj);
]]>
            </code>
        </injected-method>
    </class>

This adds the method inside "NSString.java" :

/*
 * Injected methods
 */
public String toString(){
throw new RuntimeException("Stub");
}

 and "org_xmlvm_ios_NSString.m" :

JAVA_OBJECT org_xmlvm_ios_NSString_toString__(JAVA_OBJECT me)
{
    //XMLVM_BEGIN_WRAPPER[org_xmlvm_ios_NSString_toString__]

                return fromNSString(((org_xmlvm_ios_NSObject*)
me)->fields.org_xmlvm_ios_NSObject.wrappedObj);

    //XMLVM_END_WRAPPER
}


That's great, but not what I'm looking for.
What I want to do is add a class method inside the underlying UIViewWrapper
ObjC class.
>From what I'm understanding of it, UIViewWrapper is a generated ObjC class,
extending UIView, and adding methods for managing delegated methods such as
touch events, etc :

Inside "org_xmlvm_ios_UIView.h" :

@interface UIViewWrapper : UIView

// Append the wrapper method declarations defined in the class Macro
XMLVM_OBJC_OVERRIDE_CLASS_DECLARATIONS_org_xmlvm_ios_UIView

@end

Inside "org_xmlvm_ios_UIView.m" :

@implementation UIViewWrapper

// Append the wrapper methods defined in the class Macro
XMLVM_OBJC_OVERRIDE_CLASS_DEFINITIONS_org_xmlvm_ios_UIView

@end


What I need is to be able to add a class method inside UIViewWrapper, so
that it looks like something like this :

@implementation UIViewWrapper

// Append the wrapper methods defined in the class Macro
XMLVM_OBJC_OVERRIDE_CLASS_DEFINITIONS_org_xmlvm_ios_UIView

+ (Class) layerClass {
    return [CAEAGLLayer class];
}

@end


Having generated this method for the "org_xmlvm_ios_UIView" class won't
solve my problem, since the method needs to be generated on the
UIViewWrapper class.
Maybe is it more clear now... :)

Mickael


2012/6/25 Arno Puder <ar...@pu...>

>
> checkout trunk/crossmobile, then look for a file called advisor.xml. In
> that file do a grep on "toString". This is an example on how a method
> toString() is injected to class NSString. You should be able to do the
> same for a method called layerClass. Once you have done that, do a "ant
> gen-xmlvm-ios" in crossmobile. This will re-generate the iOS API in
> ../xmlvm. For this to work you need to point property sdk.path in
> xmlvm.properties to an installation of the iOS 4.3 SDK (note that
> crossmobile cannot deal with 5.* API yet).
>
> Arno
>
>
> On 6/25/12 11:53 AM, Mickael Barbeaux wrote:
> > Hi everyone,
> >
> > I recently switched to the new C iOS API backend, and it really works
> well !
> > I'm currently working at implementing an OpenGLES 2.0 interface for
> > developing my own custom game renderer, based on what was done before on
> > the old C API backend.
> >
> > My main concern is about the way to define the layer class on a UIView.
> > As you may know, I order to use an OpenGLES 2.0 renderer inside a
> > UIView, Apple recommend to add this method inside your UIView subclass :
> >
> > + (Class) layerClass
> >
> > {
> >
> >      return [CAEAGLLayer class];
> >
> > }
> >
> >
> > But how to reach the same effect using XMLVM ?
> > It seems that the UIView implementation is based on a ObjC wrapper class
> > (UIViewWrapper), but it is generated by XMLVM at XCode project
> > generation, and it seems I have no way to modify it.
> > As the method to implement is "static" (class method), I didn't find a
> > way to "override" it inside my UIView java subclass. Using a delegate
> > method won't help either.
> >
> > How can I process to achieve what I want to do ?
> > Should I do the same way as for the old C iOS API, that's to say
> > duplicate the UIView class and create a UIViewGL class with specific
> > implementation using the CAEAGLLayer class ? But then, how can I add the
> > "layerClass" inside the wrapper implementation, as it is now generated
> > automatically by the new iOS API ?
> >
> > Mickael
> >
> >
> >
> ------------------------------------------------------------------------------
> > Live Security Virtual Conference
> > Exclusive live event will cover all the ways today's security and
> > threat landscape has changed and how IT managers can respond. Discussions
> > will include endpoint security, mobile security and the latest in malware
> > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> >
> >
> >
> > _______________________________________________
> > xmlvm-users mailing list
> > xml...@li...
> > https://lists.sourceforge.net/lists/listinfo/xmlvm-users
> >
>
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> xmlvm-users mailing list
> xml...@li...
> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>



-- 
Barbeaux Mikael
Ingénieur SI - Spécialité J2EE
---------------------------------------------------------
Ippon Technologies
3 rue Bellanger
92300 LEVALLOIS PERRET

Port: 06.18.85.00.73
www.ippon.fr

Re: [xmlvm-users] Define the layerClass on UIView

[Arno P. <ar...@pu...>]

well, short answer: we don't support that scenario yet.

What you could do: you can inject code on class level using advisor.xml. 
You can use that to inject an Objective-C category that adds a new 
method to the generated wrapper class. A bit of a kludge, but might 
solve your problem for now.

Arno


On 6/25/12 2:32 PM, Mickael Barbeaux wrote:
> Hi Arno,
>
> Thanks for your really quick answer ! :)
>
> I've just taken a look at what you suggested. But I don't think this
> corresponds to what I'm looking for...
> I'll be more specific.
>
> If I did understand correctly what does the Advisor, it will add a new
> method inside the UIView java class (let's call it "layerClass") and a
> native implementation inside org_xmlvm_ios_UIView.m from the code I'll
> put inside advisor.xml. I deduced it from what did the toString() method
> added inside NSString in advisor.xml :
>
> <class name="NSString">
>          <injected-method name="toString" modifier="public">
>              <signature>
>                  <return type="String"/>
>              </signature>
>              <code language="c" mode="replace">
>                  <![CDATA[
> 	return fromNSString(((org_xmlvm_ios_NSObject*) me)->fields.org_xmlvm_ios_NSObject.wrappedObj);
> ]]>
>              </code>
>          </injected-method>
>      </class>
>
> This adds the method inside "NSString.java" :
>
> /*
> * Injected methods
> */
> public String toString(){
> throw new RuntimeException("Stub");
> }
>
>   and "org_xmlvm_ios_NSString.m" :
>
> JAVA_OBJECT org_xmlvm_ios_NSString_toString__(JAVA_OBJECT me)
> {
>      //XMLVM_BEGIN_WRAPPER[org_xmlvm_ios_NSString_toString__]
>
>                  return fromNSString(((org_xmlvm_ios_NSObject*)
> me)->fields.org_xmlvm_ios_NSObject.wrappedObj);
>      //XMLVM_END_WRAPPER
> }
>
>
> That's great, but not what I'm looking for.
> What I want to do is add a class method inside the underlying
> UIViewWrapper ObjC class.
>  From what I'm understanding of it, UIViewWrapper is a generated ObjC
> class, extending UIView, and adding methods for managing delegated
> methods such as touch events, etc :
>
> Inside "org_xmlvm_ios_UIView.h" :
>
> @interface UIViewWrapper : UIView
>
> // Append the wrapper method declarations defined in the class Macro
> XMLVM_OBJC_OVERRIDE_CLASS_DECLARATIONS_org_xmlvm_ios_UIView
>
> @end
>
> Inside "org_xmlvm_ios_UIView.m" :
>
> @implementation UIViewWrapper
>
> // Append the wrapper methods defined in the class Macro
> XMLVM_OBJC_OVERRIDE_CLASS_DEFINITIONS_org_xmlvm_ios_UIView
>
> @end
>
>
> What I need is to be able to add a class method inside UIViewWrapper, so
> that it looks like something like this :
>
> @implementation UIViewWrapper
>
> // Append the wrapper methods defined in the class Macro
> XMLVM_OBJC_OVERRIDE_CLASS_DEFINITIONS_org_xmlvm_ios_UIView
>
> + (Class) layerClass {
>      return [CAEAGLLayer class];
> }
>
> @end
>
>
> Having generated this method for the "org_xmlvm_ios_UIView" class won't
> solve my problem, since the method needs to be generated on the
> UIViewWrapper class.
> Maybe is it more clear now... :)
>
> Mickael
>
>
> 2012/6/25 Arno Puder <ar...@pu... <mailto:ar...@pu...>>
>
>
>     checkout trunk/crossmobile, then look for a file called advisor.xml. In
>     that file do a grep on "toString". This is an example on how a method
>     toString() is injected to class NSString. You should be able to do the
>     same for a method called layerClass. Once you have done that, do a "ant
>     gen-xmlvm-ios" in crossmobile. This will re-generate the iOS API in
>     ../xmlvm. For this to work you need to point property sdk.path in
>     xmlvm.properties to an installation of the iOS 4.3 SDK (note that
>     crossmobile cannot deal with 5.* API yet).
>
>     Arno
>
>
>     On 6/25/12 11:53 AM, Mickael Barbeaux wrote:
>      > Hi everyone,
>      >
>      > I recently switched to the new C iOS API backend, and it really
>     works well !
>      > I'm currently working at implementing an OpenGLES 2.0 interface for
>      > developing my own custom game renderer, based on what was done
>     before on
>      > the old C API backend.
>      >
>      > My main concern is about the way to define the layer class on a
>     UIView.
>      > As you may know, I order to use an OpenGLES 2.0 renderer inside a
>      > UIView, Apple recommend to add this method inside your UIView
>     subclass :
>      >
>      > + (Class) layerClass
>      >
>      > {
>      >
>      >      return [CAEAGLLayer class];
>      >
>      > }
>      >
>      >
>      > But how to reach the same effect using XMLVM ?
>      > It seems that the UIView implementation is based on a ObjC
>     wrapper class
>      > (UIViewWrapper), but it is generated by XMLVM at XCode project
>      > generation, and it seems I have no way to modify it.
>      > As the method to implement is "static" (class method), I didn't
>     find a
>      > way to "override" it inside my UIView java subclass. Using a delegate
>      > method won't help either.
>      >
>      > How can I process to achieve what I want to do ?
>      > Should I do the same way as for the old C iOS API, that's to say
>      > duplicate the UIView class and create a UIViewGL class with specific
>      > implementation using the CAEAGLLayer class ? But then, how can I
>     add the
>      > "layerClass" inside the wrapper implementation, as it is now
>     generated
>      > automatically by the new iOS API ?
>      >
>      > Mickael
>      >
>      >
>      >
>     ------------------------------------------------------------------------------
>      > Live Security Virtual Conference
>      > Exclusive live event will cover all the ways today's security and
>      > threat landscape has changed and how IT managers can respond.
>     Discussions
>      > will include endpoint security, mobile security and the latest in
>     malware
>      > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>      >
>      >
>      >
>      > _______________________________________________
>      > xmlvm-users mailing list
>      > xml...@li...
>     <mailto:xml...@li...>
>      > https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>      >
>
>
>     ------------------------------------------------------------------------------
>     Live Security Virtual Conference
>     Exclusive live event will cover all the ways today's security and
>     threat landscape has changed and how IT managers can respond.
>     Discussions
>     will include endpoint security, mobile security and the latest in
>     malware
>     threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>     _______________________________________________
>     xmlvm-users mailing list
>     xml...@li...
>     <mailto:xml...@li...>
>     https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>
>
>
>
> --
> Barbeaux Mikael
> Ingénieur SI - Spécialité J2EE
> ---------------------------------------------------------
> Ippon Technologies
> 3 rue Bellanger
> 92300 LEVALLOIS PERRET
>
> Port: 06.18.85.00.73
> www.ippon.fr <http://www.ippon.fr>