Object Plugin Container

[Imagine Programming]

Thank you very much Reteset, I'm going to check this out tonight!

[RizlaUK]

one thing i noticed in the sample, when creating multiple objects there is junk text caption in one of the buttons

[reteset]

one thing i noticed in the sample, when creating multiple objects there is junk text caption in one of the buttons

sorry it is my mistake ,in sample project
somehow my last modification on this struct was totally wrong
this happened when i really need to sleep

struct OBJECT_INSTANCE
{
    OBJECT_INSTANCE()
    {
      hObjectWnd = NULL;
      ClassID = -1;
      delete[] strText;
    }

    HWND    hObjectWnd;
    long    ClassID;
    LPCTSTR strText;
}; 

should be

struct OBJECT_INSTANCE
{
    OBJECT_INSTANCE()
    {
      hObjectWnd = NULL;
      ClassID = -1;
      strText = NULL;
    }
     ~OBJECT_INSTANCE()
    {
      delete[] strText;
    }
    HWND    hObjectWnd;
    long    ClassID;
    LPCTSTR strText;
}; 

[Imagine Programming]

Hmm, translating it to PB is gonna be a pain, but well worth it.

The OBJECT_INSTANCE structure, what do OBJECT_INSTANCE() and ~OBJECT_INSTANCE() mean?
Is one of those a union?

[RizlaUK]

constructor and destructor, im guessing we would need a union, i'll look into it later when i get home from work at about 1pm (06:40 now.... to early, lol)

Hmm, translating it to PB is gonna be a pain, but well worth it.

im sure we can manage it Bas :yes

[Imagine Programming]

Sure we can, however 2 unions?

[RizlaUK]

no unions

remember, C++ is far more advanced than PB, we have to handle the constructor and destructor ourselves in irPlg_Object_CreateObject and irPlg_Object_DeleteObject

iv only just got in, had to sneak out and get the misses something extra special for Christmas (got a gorgeous diamond set ring, cost a fortune!!), i'll work on this framework after a cuppa (Brits and our Tea, huh!, lol)

[reteset]

Ok, i'll show you what is that struct

this is a C++ struct but it is not a must have part of this proxy concept
you do not have to clone or create a similar thing in your language

it is a way that a choice to store plugin data , so it is only an example
you can use anything else in your programing language

like you can see below , this struct has a contructor and destructor
this struct can also be written without constuctor and destructor

i added a contructor to initialize member variables in struct
i also add a destructor to delete strText variable
this was a way to initialize and delete variables
again you do not have to do it so

struct OBJECT_INSTANCE
{
    OBJECT_INSTANCE()
    {
      hObjectWnd = NULL;
      ClassID = -1;
      strText = NULL;
    }
     ~OBJECT_INSTANCE()
    {
      delete[] strText;
    }
    HWND    hObjectWnd;
    long    ClassID;
    LPCTSTR strText;
};

for example you can initialize your variables like below

Struct :

struct OBJECT_INSTANCE
{
    HWND    hObjectWnd;
    LPCTSTR strText;
    long    ClassID;
    long    ProgressMin;
    long    ProgressMax;
    long    ProgressCurrentPos;
};

Initialization :

OBJECT_INSTANCE * CreateNewInstance(long ClassID)
{
	OBJECT_INSTANCE *pObject = new OBJECT_INSTANCE;
	pObject->strText = NULL;
        pObject->ClassID = ClassID;
        pObject->ProgressMin = 0;
        pObject->ProgressMax = 100;
        pObject->ProgressCurrentPos = 0;

	m_objectlist.push_back(pObject);
	return pObject;
}

Delete :

void DeleteInstance(long ClassID)
{
    for(size_t i=0; i<m_objectlist.size(); ++i)
	{
      OBJECT_INSTANCE *pObject = m_objectlist.at(i);
	  if (pObject)
	  {  
		  if(pObject->ClassID == ClassID)
		  {
			  if(::IsWindow(pObject->hObjectWnd))
		       {
				 ::ShowWindow(pObject->hObjectWnd,SW_HIDE);
			     ::DestroyWindow(pObject->hObjectWnd);
		       }
                      delete[] pObject->strText;
		      delete pObject;
			  m_objectlist.erase( m_objectlist.begin()+i );	
			  return; // only for break
			  
		  }  
	  }
	}
}

the real aim is :
store each instance's data as separated from each other

for example when i call _GetCustomProperties with a ClassID from your dll, you must return properties of the instance indexed by the ClassID
if you do not do this you will return same properties to all objects on the AMS page,
to avoid this , you must store plugin specific data by ClassID and when AMS wants anything back , you will return it by its index

i used std::vector as the array style , you can use language specific array to index structs

much simple example could be with Lua (the language that we all know )

tblPluginProperties ={}

function Getsomething(classid)

 return tblPluginProperties[classid].Variable;

end

function Setsomething(classid,variable)

 tblPluginProperties[classid].Variable = variable;

end

[Imagine Programming]

Oh I never knew that was possible in C++ haha! Very nice
Thanks for that information Reteset

[RizlaUK]

i read enough about C++ (from books) to establish the basic concepts of what the code is doing, i just cant manage to string it all together into something usable

i usually use a structure for object info and attach a pointer to the structure to the window with "SetProp", but i can see in this case it will not work as the ClassID is the key

Bas, its back to the dreaded LinkedList, but remember, dont access the list from a callback, we already know the downfalls of doing such

Maybe its time to look into Map's, we can create a single map for each plugin and each instance will have its own entry in the map array

OK, iv got my function framework in place, just need to fill the functions with some operational code and run some tests, when i have some results i'll post what iv got

How you doing Bas, any progress ?

[reteset]

Oh I never knew that was possible in C++ haha! Very nice
Thanks for that information Reteset

In C++ , everything is possible

[reteset]

i usually use a structure for object info and attach a pointer to the structure to the window with "SetProp", but i can see in this case it will not work as the ClassID is the key

actually ClassID has not to be key
you can use it as a member of struct and then make a comparision in a loop
see what i did in sample

for (i=0 ; i < lengthof(array) ; i++)
{
   if(array[i].ClassID == ClassID)
   {
     // do something with array[i].Text
   }
} 

[Imagine Programming]

Ahh yeah, nice!

[RizlaUK]

in which case i would still need a LinkedList to loop through, its not a problem, i just need to change my way of thinking when it comes to object management

however, i do have a problem i cant seem to overcome

in _DrawDesign and _DrawRuntime, i need the RECT argument to be a pointer to the structure, purebasic does not recognize the structure unless its defined in source

accessing rcObRect\X does not work, i need to assign the pointer to my own structure, like below

  ProcedureCDLL.l _DrawDesign(ClassID ,HDC, hMainWnd, *rcObRect, bVisible, bEnabled) 
  
  
Protected *rc.RECT=*rcObRect
	Protected X = *rc\left
	Protected Y = *rc\top
	Protected Width = *rc\right-*rc\left
	Protected Height = *rc\bottom-*rc\top

all structures must be defined in the source or else PB throws an error, and i can not directly asign the structure variable to my RECT as PB see's it as a value, we must work with pointers when it comes to structures

unless you have any ideas Bas ?


EDIT:

using predefined settings, i have a ListIcon drawing on the AMS page, just in the wrong location, lol

Bas, we are well on the way mate , just a few teething problems to overcome

[Imagine Programming]

Dean,

  ProcedureCDLL.l _DrawDesign(ClassID ,HDC, hMainWnd, *rcObRect.RECT, bVisible, bEnabled)

receives it as a pointer to a structure, should work in our case. Do you need any help by the way?
I didn't have time to translate things yet, however tonight I'm free