support arbitrary widgets in toolbars via children of GtkToolItem

Change-Id: I6dcc146ba3a55f263f71e29a17b5e75de2bbe130
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/87784
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/vcl/source/window/builder.cxx b/vcl/source/window/builder.cxx
index 400073b..154eaac 100644
--- a/vcl/source/window/builder.cxx
+++ b/vcl/source/window/builder.cxx
@@ -1782,6 +1782,8 @@ VclPtr<vcl::Window> VclBuilder::makeObject(vcl::Window *pParent, const OString &
    if (bIsPlaceHolder || name == "GtkTreeSelection")
        return nullptr;

    ToolBox *pToolBox = (pParent && pParent->GetType() == WindowType::TOOLBOX) ? static_cast<ToolBox*>(pParent) : nullptr;

    extractButtonImage(id, rMap, name == "GtkRadioButton");

    VclPtr<vcl::Window> xWindow;
@@ -2316,9 +2318,8 @@ VclPtr<vcl::Window> VclBuilder::makeObject(vcl::Window *pParent, const OString &
        return nullptr;
    }
    else if (name == "GtkToolButton" || name == "GtkMenuToolButton" ||
             name == "GtkToggleToolButton" || name == "GtkRadioToolButton")
             name == "GtkToggleToolButton" || name == "GtkRadioToolButton" || name == "GtkToolItem")
    {
        ToolBox *pToolBox = dynamic_cast<ToolBox*>(pParent);
        if (pToolBox)
        {
            OUString aCommand(extractActionName(rMap));
@@ -2366,7 +2367,6 @@ VclPtr<vcl::Window> VclBuilder::makeObject(vcl::Window *pParent, const OString &
    }
    else if (name == "GtkSeparatorToolItem")
    {
        ToolBox *pToolBox = dynamic_cast<ToolBox*>(pParent);
        if (pToolBox)
        {
            pToolBox->InsertSeparator();
@@ -2407,6 +2407,7 @@ VclPtr<vcl::Window> VclBuilder::makeObject(vcl::Window *pParent, const OString &
            }
        }
    }

    SAL_INFO_IF(!xWindow, "vcl.layout", "probably need to implement " << name << " or add a make" << name << " function");
    if (xWindow)
    {
@@ -2422,6 +2423,13 @@ VclPtr<vcl::Window> VclBuilder::makeObject(vcl::Window *pParent, const OString &
            xWindow->ImplGetWindowImpl()->mpBorderWindow.get() << ") with helpid " <<
            xWindow->GetHelpId());
        m_aChildren.emplace_back(id, xWindow, bVertical);

        // if the parent was a toolbox set it as an itemwindow for the latest itemid
        if (pToolBox)
        {
            pToolBox->SetItemWindow(m_pParserState->m_nLastToolbarId, xWindow);
            pToolBox->SetItemExpand(m_pParserState->m_nLastToolbarId, true);
        }
    }
    return xWindow;
}