How does text work in the indexnavigator control?

[RMan]

m_spDestBeforeAfter->put_Count(2);
m_spDestBeforeAfter->SetStrings(CComBSTR(L"Before\nAfter"));
m_spDestBeforeAfter->UpdateItems(0, 2);
m_spDestBeforeAfter->put_SelIndex(m_insertDest.after ? 1UL : 0UL);

We get 2 buttons but they just give a number and not the actual text.

Destination.jpg

[RMan]

Also is there any easy way to make it work with your built-in translations. I'm guessing these are the string ID's for inserting pages.
InsertPosCtl.Destination = 13527
InsertPosCtl.Location = 13528
InsertPosCtl.BeforeAfter = 13529
InsertPosCtl.Page = 13530
InsertPosCtl.Pages = 13531
InsertPosCtl.ExactEdit = 13532
InsertPosCtl.Total = 13533

[Sean - PDF-XChange]

Hi RMan,

I've asked the development team for their input here.

Kind regards,

[MishaH]

Hi RMan,


1. Customizing the IndexNavigator item text
Implement your own `IUIX_IndexNavigatorCallbacks` and override `IndexNav_OnGetItemText` to provide the desired text for each item. For example, assuming m_sBefore and m_sAfter contain the corresponding localized strings:

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HRESULT MyIndexNavigatorCallbacks::IndexNav_OnGetItemText(IUIX_IndexNavigator* pIndexNav, LONG nIndex, LPWSTR* sText, LONG* nTextLen)
{
    if (!pIndexNav || !sText || !nTextLen)
        return E_INVALIDARG;

    if ((DWORD)nIndex > 1)
        return E_INVALIDARG;

    const auto& str = (nIndex == 0) ? m_sBefore : m_sAfter;
    *sText = str;
    *nTextLen = str.Length();

    return S_OK;
}

2. Retrieving the built-in localized strings
The identifiers you found refer to the controls used in our implementation, rather than to the actual strings displayed by those controls. The corresponding text strings have separate identifiers.

You can use `IPXV_Inst::GetLocalStr` to retrieve the built-in localized strings by their string identifiers. For example:

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CComBSTR m_sBefore, m_sAfter;
pVInst->GetLocalStr(L"PageInsert.Location.Before", &m_sBefore);
pVInst->GetLocalStr(L"PageInsert.Location.After", &m_sAfter);

You can retrieve these strings during initialization and then return the appropriate one from IndexNav_OnGetItemText based on the navigator item's index.

I hope this helps.

Kind regards,
Misha

[RMan]

Thanks we have the text working. Now is there a flag I'm missing so the main indexnavigator contol resizes based on the content or so we have to calculate each itemtext width and calculate the total width?

[MishaH]

Hi RMan,

The width of each IndexNavigator item is calculated automatically based on the text returned by `IndexNav_OnGetItemText`.
If you need to customize the item width calculation, you can override `IndexNav_OnGetItemTextWidth`. Here is an example of how the item width is currently calculated:

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HRESULT MyIndexNavigatorCallbacks::IndexNav_OnGetItemTextWidth(IUIX_IndexNavigator* pIndexNav, LONG nIndex, LPWSTR pText, LONG nTextLen, IUIX_Font* pFont, LONG* nTextWidth)
{
    if (!pIndexNav || !m_pObj || !nTextWidth)
        return E_INVALIDARG;

    SIZE sz = { 0 };
    LONG nDrawTextFlags = 0;
    m_pObj->CalcStringSize(pText, nTextLen, pFont, &sz, nDrawTextFlags);
    *nTextWidth = sz.cx;

    return S_OK;
}

To make the IndexNavigator control itself fit its content, use `IUIX_IndexNavigator::CalcContentWidth`. Run this code during control initialization and whenever the layout changes:

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CComPtr<IUIX_Obj> pObj;
pIndexNav->get_Obj(&pObj);
if (pObj)
{
    RECT rcIndexNav = { 0 };
    pObj->get_Rect(&rcIndexNav);

    LONG nAvailWidth = 1000; // Maximum available width within the parent Group control, based on the current layout.

    LONG nWidth = 0;
    pIndexNav->CalcContentWidth(nAvailWidth, &nWidth);

    rcIndexNav.right = rcIndexNav.left + nWidth;
    pObj->Move(&rcIndexNav, VARIANT_TRUE);
}

Please let me know if this works for you.

Kind regards,
Misha

[RMan]

Misha thank you so much. We were close but a few pixels off and twice as much code the way we were trying it.

One last thing is how to make part of the text bold like we can in the labels. viewtopic.php?t=50522