Choose icon in TParamListBox?

VCL TMS VCL UI Pack
1

I was playing around with the TParamListBox to see if I could select an icon. I tried setting it up as a Custom Edit item and put the inside of it. It showed the icon like I wanted. So with an event for OnParamCustomEdit() I extracted the icon index, put up a dialog to select the icon, then set the value. The new value showed as the raw text and didn't change the icon itself. Here's my test code to see if I could get this to work:


void __fastcall TSettingsForm::ParamListBox1ParamCustomEdit(TObject *Sender, int idx,
          UnicodeString href, UnicodeString value, UnicodeString props, TRect &EditRect)

{
	int pos=value.Pos(_T("idx:"));
	TImageIndex ii=_tcstoul(value.SubString(pos, 4).t_str(), NULL, 10);
	if (TIconSelectionForm::SelectIcon(this, ii)==mrOk) {
		value.sprintf(_T("<IMG src=\"idx:%i\">"), ii);
		TParamListBox *plb=dynamic_cast<TParamListBox *>(Sender);
		if (plb) {
			plb->Parameter[href]=value;
		}
	}
}

Is there some way to easily do what I want? It's almost there, just setting the value doesn't result with the changed icon (it shows the icon and then the raw text).

Thanks.

2

Can you try to implement OnParamEditDone and in this event handler, return the value <IMG src=...> via the 'var value' parameter?

3

On the sample the pos needs pos+=4. However OnParamEditDone was not called for the custom edit item, it only was on the normal items?

4

I forgot the source as included - I did a quick check on why it may not be changing the icon, it looks like the call to HTMLPrep() is the reason - it must not do it on the initial value set but any change gets encoded?

So may I request an new feature in selecting an image idx - In my case 16x16 imagelist is used, when I click on the icon i prompt for new icon index, then I set it. With the new feature maybe it just gives the idx to use and set, done, and easy.

5

Here's the idea: New class "IMG"

Default Icon: <a href="iconidx" class="IMG">srcval</a>

Just uses the call back like the "CUSTOM" class.

Then you basically use <IMG src="srcval"> like <IMG src="idx:1">

6

We'll consider this for a future update.