U++ framework: TreeCtrl » TreeCtrl - how to change images dynamically? [SOLVED + FIXED]

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Re: TreeCtrl - how to change images dynamically? [message #2335 is a reply to message #2331]

Sat, 08 April 2006 14:05

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

fudadmin wrote on Sat, 08 April 2006 07:00

luzr wrote on Sat, 08 April 2006 11:42

const Node& GetNode(int id) const;
void SetNode(int id, const Node& n);

What do you mean by "series of images"?

Mirek

I had tried this unsuccessfully... That's why I asked.

	tree.SetNode(editid, tree.GetNode(editid).SetImage(CtrlImg::ImgEdit()));

E:\AriUppApps1\ideAris1\main.cpp(26) : error C2662: 'TreeCtrl::Node::SetImage' : cannot convert 'this' pointer from
'const TreeCtrl::Node' to 'TreeCtrl::Node &'

Ah... Well, one of rare cases when C++ does not play well...

Try

TreeCtrl::Node n = tree.GetNode(editid);
n.SetImage(CtrlImg::ImgEdit());
tree.SetNode(editid, n);

Thinking about it, it would probably be better here to return Node value instead of constant reference... what do you think? (Constant reference is faster, however in this case it is very likely you are about to change the value in most cases).

MIrek

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[Message index]

		TreeCtrl - how to change images dynamically? [SOLVED + FIXED] By: fudadmin on Fri, 07 April 2006 22:20
		Re: TreeCtrl - how to change images dynamically? By: fudadmin on Sat, 08 April 2006 01:14
		Re: TreeCtrl - how to change images dynamically? By: mirek on Sat, 08 April 2006 12:42
		Re: TreeCtrl - how to change images dynamically? By: fudadmin on Sat, 08 April 2006 13:00
		Re: TreeCtrl - how to change images dynamically? By: mirek on Sat, 08 April 2006 14:05
		Re: TreeCtrl - how to change images dynamically? By: fudadmin on Sat, 08 April 2006 15:09
		Re: TreeCtrl - how to change images dynamically? By: mirek on Sat, 08 April 2006 16:33
		Re: TreeCtrl - how to change images dynamically? By: fudadmin on Sat, 08 April 2006 13:02

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