CustomData and GUI Messaging

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 24/08/2004 at 15:30, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   8.503
Platform:   Windows ; Mac ; Mac OSX ;
Language(s) :     C++ ;

---------
I need to do something very similar to the BUTTOM custom gui. I need to retrieve from the parent of the parameter some bitmaps that the parent is responsible for making ( like the bitmap returned from Message for BUTTON ). How do I initiate the Message to the parent?

Best Regards,
darf

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 28/08/2004 at 00:32, xxxxxxxx wrote:

The bitmap button custom GUI (I assume that's what you mean) does it like this:
1. When you set the data for the bitmap button with a BitmapButtonStruct, a pointer to the object is included.
2. Then this object pointer is used to send a standard base list message, MSG_DESCRIPTION_GETBITMAP.
It wouldn't be possible to do this without step 1 since a custom GUI isn't restricted to the attributes manager; it can just as well be used in a standalone dialog when there's no parent object.
Here's a short review of the relevant code snippets:

    
    
    class iBitmapButtonCustomGui : public iBaseCustomGui  
    {  
      ...  
      pObj;  
      ...  
    };  
      
    Bool iBitmapButtonCustomGui::SetData(const TriState<GeData> &tristate)  
    {  
      const BitmapButtonStruct *ll =   
        static_cast<const BitmapButtonStruct*>(   
          tristate.GetValue().GetCustomDataType(CUSTOMDATATYPE_BITMAPBUTTON));  
      if (ll)  
      {  
        pObj=ll->op;  
        ...  
      }  
      ...  
      InitValues();  
      return TRUE;  
    }  
      
    Bool iBitmapButtonCustomGui::InitValues(void)  
    {  
      if (pObj)  
      {  
        ...  
        pObj->Message(MSG_DESCRIPTION_GETBITMAP,&rts);  
        ...  
      }  
      return TRUE;  
    }  
      
    Bool iBitmapButtonCustomGui::Command(LONG id,const BaseContainer &msg)  
    {  
      switch (id)  
      {  
      case 1000:  
        {  
          BaseContainer m(msg);  
          m.SetLong(BFM_ACTION_ID,GetId());  
          SendParentMessage(m);  
          break;  
        }  
      ...  
      }  
      ...  
      return iCustomGui::Command(id,msg);  
    }  
      
    Bool HostObjectData::GetDParameter(GeListNode *node, const DescID &id, GeData &t_data, LONG &flags)   
    {  
      switch(id[0].id)   
      {   
      ...  
      case BITMAP_BUTTON_ID:   
        {  
          LONG dirty = 0;  
          BitmapButtonStruct bbs = BitmapButtonStruct(static_cast<PluginObject*>(node), id, dirty);   
          t_data = GeData(CUSTOMDATATYPE_BITMAPBUTTON,bbs);   
          flags |= DESCFLAGS_PARAM_GET;   
          break;   
        }  
      }  
      return ObjectData::GetDParameter(node, id, t_data, flags);   
    }

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 29/08/2004 at 07:16, xxxxxxxx wrote:

Thank you!

Regards,
darf

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 29/08/2004 at 15:10, xxxxxxxx wrote:

In the HostObjectData::GetDParameter you allocate a new custom data. Should we be freeing the one that was previously there or does C4D do that internally?

Regards,
darf

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 29/08/2004 at 23:16, xxxxxxxx wrote:

No, that is automatic. (In fact, since there's no non-automatic allocation, i.e. raw new/delete, in the above function, just temporaries and operator=, it's all just C++ memory management.)

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 13/09/2004 at 12:02, xxxxxxxx wrote:

f**king Brilliant.

Happy.
darf