Button scaled unexpectedly when it is in the same row with an expanded linkbox

BruceC

I have a button and a linkbox placed in the same row, however I found the button is always scaled horizontally when the linkbox is expanded.
Could you please help me find out how to stop the button being scaled horizontally?
I have tried applying DESC_SCALEH to FALSE and DESC_FITH to TRUE, but it doesn't work after the linkbox is expanded.

Before the linkbox is expanded, the button's width is expected.

After the linkbox is expanded, the button is scaled unexpected.

I essentially used the below code snippet to create the button and linkbox in NodeData::GetDDescription()

Int32 groupID = xxgroupIdxx;
const DescID groupDescID = CreateDescID(DescLevel(groupID, DTYPE_GROUP, 0));
{
    BaseContainer bc = GetCustomDataTypeDefault(DTYPE_GROUP);
    bc.SetInt32(DESC_COLUMNS, 2);
    bc.SetInt32(DESC_SCALEH, TRUE);
    description->SetParameter(groupDescID, bc, CreateDescID(DescLevel(AOV_COMP_PARAMS_GRP)));
}

{
    DescID id = CreateDescID(DescLevel(xxButtonIdxx, DTYPE_BUTTON, 0));
    BaseContainer bc = GetCustomDataTypeDefault(DTYPE_BUTTON);
    bc.SetString(DESC_NAME, "test"_s);
    bc.SetInt32(DESC_CUSTOMGUI, CUSTOMGUI_BUTTON);
    bc.SetBool(DESC_SCALEH, FALSE);   //// <<<<<<<<<<<
    bc.SetBool(DESC_FITH, TRUE);      ////  <<<<<<<<<<<< I have tried using these two flags, but they don't help
    description->SetParameter(id, bc, groupDescID);
}

{
    const DescID id = CreateDescID(DescLevel(xxLinkIdxx, DTYPE_BASELISTLINK, 0));
    BaseContainer bc = GetCustomDataTypeDefault(DTYPE_BASELISTLINK);
    bc.SetString(DESC_NAME, "test"_s);
    bc.SetInt32(DESC_CUSTOMGUI, CUSTOMGUI_LINKBOX);
    bc.SetData(DESC_SCALEH, TRUE);
    bc.SetContainer(DESC_ACCEPT, accept);
    description->SetParameter(id, bc, groupDescID);
}

Thanks!

i_mazlov

Hi @BruceC!

The expandable UIs like COSTOMGUI_LINKBOX are not designed to be used with other elements on the same row, hence can lead to the undefined behavior like what you're experiencing. I suppose the workaround for you would be to put the linkbox on the row below the button.

Cheers,
Ilia

BruceC

Thanks for the reply @i_mazlov. Yeah, I already tried the workaround, it worked.