Gadget HintInfo

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Fri, 2018-08-31 04:19
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mritter0
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Gadget HintInfo

In my new gadget class I allow setting of GA_HintInfo. I don't know if I am setting it wrong in OM_SET or not doing it right in the dispatcher at GM_HELPTEST. It shows my gadget's hint info for every gadget regardless of what theirs is.

  1.  
  2. case GM_HELPTEST:
  3. //			retval=IIntuition->IDoSuperMethodA(cl,o,msg);
  4. //			retval=GMR_HELPHIT;
  5. return(GMR_HELPCODE | 0x0000C0DE);
  6. 			break;
  7.  
  8. 		case GM_QUERY:
  9. 			if (((struct gpQuery *)msg)->gpq_Type==GMQ_HINTINFO)
  10. 			{
  11. 				*(((struct gpQuery *)msg)->gpq_Data)=(LONG )IDD->HintInfo;
  12. 			}
  13. //			retval=IIntuition->IDoSuperMethodA(cl,o,msg);
  14. 			retval=GMR_NOREUSE;
  15. 			break;
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Fri, 2018-08-31 18:41
salass00
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Re: Gadget HintInfo

The problem is AFAICT that you don't check that the ie_X and ie_Y coordinates are inside your gadget.

Ideally in your layout function you should have something like (IDD->Container is a struct IBox where your gadget dimensions will be stored):

  1. GadgetBox((struct Gadget *)obj, gpl->gpl_GInfo, GBD_GINFO, 0, &IDD->Container);

And then your GM_QUERY code should look like:

  1. struct gpQuery *gpq = (struct gpQuery *)msg;
  2. if (gpq->gpq_Type == GMQ_HINTINFO)
  3. {
  4.     struct InputEvent *ie = gpq->gpq_IEvent;
  5.     if (ie != NULL)
  6.     {
  7.         if (ie->ie_X >= IDD->Container.Left &&
  8.             ie->ie_X < (IDD->Container.Left + IDD->Container.Width) &&
  9.             ie->ie_Y >= IDD->Container.Top &&
  10.             ie->ie_Y < (IDD->Container.Top + IDD->Container.Height))
  11.         {
  12.             *(gpq->gpq_Data) = (ULONG)IDD->HintInfo;
  13.             return GMR_NOREUSE;
  14.         }
  15.     }
  16. }
  17. return GMR_REUSE;
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Sat, 2018-09-01 05:03
(Reply to #2)
mritter0
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Re: Gadget HintInfo

Got it. Thanks.

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