How not to create a gadget

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Sun, 2014-10-12 03:39

mritter0

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Last seen: 2 years 5 months ago

Joined: 2014-04-21 21:15

How not to create a gadget

I have a layout designed and working just fine. But let's say I don't want to create one of the gadgets, by user choice, in the layout. How do I "skip over it"?

I have been doing this:

				!Prefs->StatusBar ? TAG_IGNORE : StartHGroup,
					LAYOUT_BevelStyle,			BVS_SBAR_VERT,
					LAYOUT_SpaceOuter,			TRUE,
					LAYOUT_FixedVert,			FALSE,
					LAYOUT_InnerSpacing,		0,
					LAYOUT_LeftSpacing,			0,
					LAYOUT_RightSpacing,		0,
					LAYOUT_TopSpacing,			0,
					LAYOUT_BottomSpacing,		0,
					LAYOUT_AddChild,			Objects[GAD_STATUSBAR]=NewObject(ButtonClass,NULL,
						GA_ID,						GAD_STATUSBAR,
						GA_ReadOnly,				TRUE,
						GA_Underscore,				"^",
						GA_Text,					"",
						BUTTON_BevelStyle,			BVS_NONE,
						BUTTON_Justification,		BCJ_LEFT,
					TAG_END),
				EndHGroup,

This works fine. But for some reason when I do display the gadget all the memory is freed. When I don't display the gadget I lose 3,800 bytes.

Is there a better way to "skip over" a gadget when creating the layout?

Sun, 2014-10-12 10:05

salass00

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Last seen: 6 months 1 week ago

Joined: 2011-02-03 11:27

Are you sure that is the

Are you sure that is the exact code you are using because I don't see how it could work at all?

Anyway you need to do something like this:

!Prefs->StatusBar ? TAG_IGNORE : LAYOUT_AddChild, !Prefs->StatusBar ? NULL : StartHGroup,
    /* ... */
EndHGroup,

Or you could create the status bar separately:

Object *status_bar = NULL;
if (Prefs->StatusBar) {
    status_bar = StartHGroup,
        /* ... */
    EndHGroup,
}

and then add it to your layout using:

Prefs->StatusBar ? LAYOUT_AddChild : TAG_IGNORE, status_bar,

Sun, 2014-10-12 20:08

(Reply to #2) #3

mritter0

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Last seen: 2 years 5 months ago

Joined: 2014-04-21 21:15

You can't create a Group as

You can't create a Group as an Object, so that doesn't work.

I have tried every combination I can think of. Still have the memory loss issue. I can't add/remove the gadget after layout creation and window open because of the StartHGroup with the horizontal bar.

I will keep trying.....

Thanks

Mon, 2014-10-13 10:28

(Reply to #3) #4

salass00

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Last seen: 6 months 1 week ago

Joined: 2011-02-03 11:27

You can't create a Group as

You can't create a Group as an Object, so that doesn't work.

Yes, you can. I notice I made a mistake though in that I forgot to replace the comma in after "EndHGroup" with a semicolon in my example above.

The StartHGroup and EndHGroup are just macros that hide a single call to IIntuition->NewObject() which surprise, surprise returns a pointer to a BOOPSI Object.

Edit:
I just noticed that the Start#? macros include an explicit "LAYOUT_AddChild, " in their definition unlike the #?Object ones I'm familiar with, so just replace StartHGroup with HGroupObject in the code fragments I posted above and it should be fine.

Tue, 2014-10-14 01:32

(Reply to #4) #5

mritter0

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Last seen: 2 years 5 months ago

Joined: 2014-04-21 21:15

Nice! Changing the group

Nice! Changing the group tags did it.

Thank you, sir!

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