1 files changed, 257 insertions, 0 deletions
diff --git a/formula/source/ui/dlg/funcpage.cxx b/formula/source/ui/dlg/funcpage.cxx
new file mode 100644
index 000000000..553517ce7
--- /dev/null
+++ b/formula/source/ui/dlg/funcpage.cxx
@@ -0,0 +1,257 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <vcl/event.hxx>
+#include <vcl/svapp.hxx>
+#include <formula/IFunctionDescription.hxx>
+
+#include "funcpage.hxx"
+#include <unotools/syslocale.hxx>
+#include <unotools/charclass.hxx>
+
+namespace formula
+{
+IMPL_LINK(FuncPage, KeyInputHdl, const KeyEvent&, rKEvt, bool)
+{
+    if (rKEvt.GetCharCode() == ' ')
+    {
+        aDoubleClickLink.Call(*this);
+        return true;
+    }
+    return false;
+}
+
+FuncPage::FuncPage(weld::Container* pParent, const IFunctionManager* _pFunctionManager)
+    : m_xBuilder(Application::CreateBuilder(pParent, "formula/ui/functionpage.ui"))
+    , m_xContainer(m_xBuilder->weld_container("FunctionPage"))
+    , m_xLbCategory(m_xBuilder->weld_combo_box("category"))
+    , m_xLbFunction(m_xBuilder->weld_tree_view("function"))
+    , m_xLbFunctionSearchString(m_xBuilder->weld_entry("search"))
+    , m_pFunctionManager(_pFunctionManager)
+{
+    m_xLbFunction->make_sorted();
+    m_aHelpId = m_xLbFunction->get_help_id();
+
+    m_pFunctionManager->fillLastRecentlyUsedFunctions(aLRUList);
+
+    const sal_uInt32 nCategoryCount = m_pFunctionManager->getCount();
+    for (sal_uInt32 j = 0; j < nCategoryCount; ++j)
+    {
+        const IFunctionCategory* pCategory = m_pFunctionManager->getCategory(j);
+        OUString sId(weld::toId(pCategory));
+        m_xLbCategory->append(sId, pCategory->getName());
+    }
+
+    m_xLbCategory->set_active(1);
+    OUString searchStr = m_xLbFunctionSearchString->get_text();
+    UpdateFunctionList(searchStr);
+    // lock to its initial size
+    m_xLbFunction->set_size_request(m_xLbFunction->get_preferred_size().Width(),
+                                    m_xLbFunction->get_height_rows(15));
+    m_xLbCategory->connect_changed(LINK(this, FuncPage, SelComboBoxHdl));
+    m_xLbFunction->connect_changed(LINK(this, FuncPage, SelTreeViewHdl));
+    m_xLbFunction->connect_row_activated(LINK(this, FuncPage, DblClkHdl));
+    m_xLbFunction->connect_key_press(LINK(this, FuncPage, KeyInputHdl));
+    m_xLbFunctionSearchString->connect_changed(LINK(this, FuncPage, ModifyHdl));
+
+    m_xLbFunctionSearchString->grab_focus();
+}
+
+FuncPage::~FuncPage() {}
+
+void FuncPage::impl_addFunctions(const IFunctionCategory* _pCategory)
+{
+    const sal_uInt32 nCount = _pCategory->getCount();
+    for (sal_uInt32 i = 0; i < nCount; ++i)
+    {
+        TFunctionDesc pDesc(_pCategory->getFunction(i));
+        if (!pDesc->isHidden())
+        {
+            OUString sId(weld::toId(pDesc));
+            m_xLbFunction->append(sId, pDesc->getFunctionName());
+        }
+    }
+}
+
+//aStr is non-empty when user types in the search box to search some function
+void FuncPage::UpdateFunctionList(const OUString& aStr)
+{
+    m_xLbFunction->clear();
+    m_xLbFunction->freeze();
+
+    const sal_Int32 nSelPos = m_xLbCategory->get_active();
+
+    if (aStr.isEmpty() || nSelPos == 0)
+    {
+        const IFunctionCategory* pCategory
+            = weld::fromId<const IFunctionCategory*>(m_xLbCategory->get_id(nSelPos));
+
+        if (nSelPos > 0)
+        {
+            if (pCategory == nullptr)
+            {
+                const sal_uInt32 nCount = m_pFunctionManager->getCount();
+                for (sal_uInt32 i = 0; i < nCount; ++i)
+                {
+                    impl_addFunctions(m_pFunctionManager->getCategory(i));
+                }
+            }
+            else
+            {
+                impl_addFunctions(pCategory);
+            }
+        }
+        else // LRU-List
+        {
+            for (auto const& elem : aLRUList)
+            {
+                if (elem) // may be null if a function is no longer available
+                {
+                    OUString sId(weld::toId(elem));
+                    m_xLbFunction->append(sId, elem->getFunctionName());
+                }
+            }
+        }
+    }
+    else
+    {
+        SvtSysLocale aSysLocale;
+        const CharClass& rCharClass = aSysLocale.GetCharClass();
+        const OUString aSearchStr(rCharClass.uppercase(aStr));
+
+        const sal_uInt32 nCategoryCount = m_pFunctionManager->getCount();
+        // Category listbox holds additional entries for Last Used and All, so
+        // the offset should be two but hard coded numbers are ugly...
+        const sal_Int32 nCategoryOffset = m_xLbCategory->get_count() - nCategoryCount;
+        // If a real category (not Last Used or All) is selected, list only
+        // functions of that category. Else list all, LRU is handled above.
+        sal_Int32 nCatBeg = (nSelPos == -1 ? -1 : nSelPos - nCategoryOffset);
+        sal_uInt32 nCatEnd;
+        if (nCatBeg < 0)
+        {
+            nCatBeg = 0;
+            nCatEnd = nCategoryCount;
+        }
+        else
+        {
+            nCatEnd = nCatBeg + 1;
+        }
+        for (sal_uInt32 i = nCatBeg; i < nCatEnd; ++i)
+        {
+            const IFunctionCategory* pCategory = m_pFunctionManager->getCategory(i);
+            const sal_uInt32 nFunctionCount = pCategory->getCount();
+            for (sal_uInt32 j = 0; j < nFunctionCount; ++j)
+            {
+                TFunctionDesc pDesc(pCategory->getFunction(j));
+                if (rCharClass.uppercase(pDesc->getFunctionName()).indexOf(aSearchStr) >= 0)
+                {
+                    if (!pDesc->isHidden())
+                    {
+                        OUString sId(weld::toId(pDesc));
+                        m_xLbFunction->append(sId, pDesc->getFunctionName());
+                    }
+                }
+            }
+        }
+    }
+
+    m_xLbFunction->thaw();
+    // Ensure no function is selected so the Next button doesn't overwrite a
+    // function that is not in the list with an arbitrary selected one.
+    m_xLbFunction->unselect_all();
+
+    if (IsVisible())
+        SelTreeViewHdl(*m_xLbFunction);
+}
+
+IMPL_LINK_NOARG(FuncPage, SelComboBoxHdl, weld::ComboBox&, void)
+{
+    OUString searchStr = m_xLbFunctionSearchString->get_text();
+    m_xLbFunction->set_help_id(m_aHelpId);
+    UpdateFunctionList(searchStr);
+}
+
+IMPL_LINK_NOARG(FuncPage, SelTreeViewHdl, weld::TreeView&, void)
+{
+    const IFunctionDescription* pDesc = GetFuncDesc(GetFunction());
+    if (pDesc)
+    {
+        const OString sHelpId = pDesc->getHelpId();
+        if (!sHelpId.isEmpty())
+            m_xLbFunction->set_help_id(sHelpId);
+    }
+    aSelectionLink.Call(*this);
+}
+
+IMPL_LINK_NOARG(FuncPage, DblClkHdl, weld::TreeView&, bool)
+{
+    aDoubleClickLink.Call(*this);
+    return true;
+}
+
+IMPL_LINK_NOARG(FuncPage, ModifyHdl, weld::Entry&, void)
+{
+    // While typing select All category.
+    m_xLbCategory->set_active(1);
+    OUString searchStr = m_xLbFunctionSearchString->get_text();
+    UpdateFunctionList(searchStr);
+}
+
+void FuncPage::SetCategory(sal_Int32 nCat)
+{
+    m_xLbCategory->set_active(nCat);
+    UpdateFunctionList(OUString());
+}
+
+sal_Int32 FuncPage::GetFuncPos(const IFunctionDescription* _pDesc)
+{
+    return m_xLbFunction->find_id(weld::toId(_pDesc));
+}
+
+void FuncPage::SetFunction(sal_Int32 nFunc)
+{
+    if (nFunc == -1)
+        m_xLbFunction->unselect_all();
+    else
+        m_xLbFunction->select(nFunc);
+}
+
+void FuncPage::SetFocus() { m_xLbFunction->grab_focus(); }
+
+sal_Int32 FuncPage::GetCategory() const { return m_xLbCategory->get_active(); }
+
+sal_Int32 FuncPage::GetCategoryEntryCount() const { return m_xLbCategory->get_count(); }
+
+sal_Int32 FuncPage::GetFunction() const { return m_xLbFunction->get_selected_index(); }
+
+sal_Int32 FuncPage::GetFunctionEntryCount() const { return m_xLbFunction->n_children(); }
+
+OUString FuncPage::GetSelFunctionName() const { return m_xLbFunction->get_selected_text(); }
+
+const IFunctionDescription* FuncPage::GetFuncDesc(sal_Int32 nPos) const
+{
+    if (nPos == -1)
+        return nullptr;
+    // not pretty, but hopefully rare
+    return weld::fromId<const IFunctionDescription*>(m_xLbFunction->get_id(nPos));
+}
+
+} // formula
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */