U++ forum: Welcome to the forum

Search on this site

Search in forums

Home » U++ Library support » TreeCtrl » TreeCtrl - how to change images dynamically? [SOLVED + FIXED]

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

TreeCtrl - how to change images dynamically? [SOLVED + FIXED] [message #2312]

Fri, 07 April 2006 22:20

fudadmin
Messages: 1321
Registered: November 2005
Location: Kaunas, Lithuania

Ultimate Contributor
Administrator

in TreeCtrl
There are methods:

	void   Set(int id, Value value);
	void   Set(int id, Value key, Value value);

but no for images...
How to change images dynamically?
(other than add or insert!!!)

[Updated on: Sun, 09 April 2006 04:39]

Report message to a moderator

Re: TreeCtrl - how to change images dynamically? [message #2314 is a reply to message #2312]

Sat, 08 April 2006 01:14

fudadmin
Messages: 1321
Registered: November 2005
Location: Kaunas, Lithuania

Ultimate Contributor
Administrator

fudadmin wrote on Fri, 07 April 2006 21:20

in TreeCtrl
There are methods:

	void   Set(int id, Value value);
	void   Set(int id, Value key, Value value);

but no for images...
How to change images dynamically?
(other than add or insert!!!)

I haven't done a lot of thinking but this works for me:

void  TreeCtrl::Set(int id, const Image& img)
{
	Item& m = item[id];
//	if(m.ctrl) {    //Edit: in fact this dosn't work ?
		m.image = img;
		RefreshItem(id);
//	}
}

If there is no other way, maybe it would be good to have added something like above?
Also, question arises, how to add a series of images?

[Updated on: Sat, 08 April 2006 01:24]

Report message to a moderator

Re: TreeCtrl - how to change images dynamically? [message #2323 is a reply to message #2314]

Sat, 08 April 2006 12:42

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

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

What do you mean by "series of images"?

Mirek

Report message to a moderator

Re: TreeCtrl - how to change images dynamically? [message #2331 is a reply to message #2323]

Sat, 08 April 2006 13:00

fudadmin
Messages: 1321
Registered: November 2005
Location: Kaunas, Lithuania

Ultimate Contributor
Administrator

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 &'

Report message to a moderator

Re: TreeCtrl - how to change images dynamically? [message #2332 is a reply to message #2323]

Sat, 08 April 2006 13:02

fudadmin
Messages: 1321
Registered: November 2005
Location: Kaunas, Lithuania

Ultimate Contributor
Administrator

luzr wrote on Sat, 08 April 2006 11:42

What do you mean by "series of images"?

Mirek

A row of images e.g Smile

[Updated on: Sat, 08 April 2006 13:02]

Report message to a moderator

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

Sat, 08 April 2006 14:05

mirek
Messages: 13975
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

Report message to a moderator

Re: TreeCtrl - how to change images dynamically? [message #2337 is a reply to message #2335]

Sat, 08 April 2006 15:09

fudadmin
Messages: 1321
Registered: November 2005
Location: Kaunas, Lithuania

Ultimate Contributor
Administrator

luzr wrote on Sat, 08 April 2006 13:05

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 &'

Quote:

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);

It works this morning... I can't believe it didn't work yesterday Shocked

... Something magic. Maybe I was too tired and did a typo mistake once again somewhere. And I knew about that const... Smile

Anyway, thank you very much for confirming it because I was going mad and suspected bugs everywhere... Smile

And I couldn't understand the reason of not returning Node... but I have not much against const if it works... Laughing

[Updated on: Sat, 08 April 2006 15:11]

Report message to a moderator

Re: TreeCtrl - how to change images dynamically? [message #2339 is a reply to message #2337]

Sat, 08 April 2006 16:33

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

fudadmin wrote on Sat, 08 April 2006 09:09

luzr wrote on Sat, 08 April 2006 13:05

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 &'

Quote:

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);

It works this morning... I can't believe it didn't work yesterday Shocked

... Something magic. Maybe I was too tired and did a typo mistake once again somewhere. And I knew about that const... Smile

Anyway, thank you very much for confirming it because I was going mad and suspected bugs everywhere... Smile

And I couldn't understand the reason of not returning Node... but I have not much against const if it works... Laughing

Well, I have changed it to return value instead of reference... so no more confusion there Smile

Mirek

Report message to a moderator

Previous Topic:	TreeCtrl - how to set horizontal grid? [NEEDS IMPLEMENTATION...]
Next Topic:	Missing callback trigger in OptionTree? [SOLVED/FIXED]

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Apr 26 11:43:50 CEST 2024

Total time taken to generate the page: 0.02511 seconds