formula/source/ui/dlg/structpg.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <vcl/svapp.hxx>
  21
  22 #include "structpg.hxx"
  23 #include <formula/formula.hxx>
  24 #include <formula/token.hxx>
  25 #include <bitmaps.hlst>
  26
  27 namespace formula
  28 {
  29
  30 void StructPage::SetActiveFlag(bool bFlag)
  31 {
  32     bActiveFlag = bFlag;
  33 }
  34
  35 StructPage::StructPage(weld::Container* pParent)
  36     : m_xBuilder(Application::CreateBuilder(pParent, "formula/ui/structpage.ui"))
  37     , m_xContainer(m_xBuilder->weld_container("StructPage"))
  38     , m_xTlbStruct(m_xBuilder->weld_tree_view("struct"))
  39     , maImgEnd(BMP_STR_END)
  40     , maImgError(BMP_STR_ERROR)
  41     , pSelectedToken(nullptr)
  42     , bActiveFlag(false)
  43 {
  44     m_xTlbStruct->set_size_request(m_xTlbStruct->get_approximate_digit_width() * 20,
  45                                    m_xTlbStruct->get_height_rows(17));
  46
  47     m_xTlbStruct->connect_changed(LINK( this, StructPage, SelectHdl ) );
  48 }
  49
  50 StructPage::~StructPage()
  51 {
  52 }
  53
  54 void StructPage::ClearStruct()
  55 {
  56     SetActiveFlag(false);
  57     m_xTlbStruct->clear();
  58 }
  59
  60 bool StructPage::InsertEntry(const OUString& rText, const weld::TreeIter* pParent,
  61                              sal_uInt16 nFlag, int nPos,
  62                              const FormulaToken* pIFormulaToken,
  63                              weld::TreeIter& rRet)
  64 {
  65     SetActiveFlag(false);
  66
  67     OUString sId(weld::toId(pIFormulaToken));
  68
  69     bool bEntry = false;
  70     switch (nFlag)
  71     {
  72         case STRUCT_FOLDER:
  73             m_xTlbStruct->insert(pParent, nPos, &rText, &sId, nullptr, nullptr,
  74                                  false, &rRet);
  75             m_xTlbStruct->set_image(rRet, BMP_STR_OPEN);
  76             bEntry = true;
  77             break;
  78         case STRUCT_END:
  79             m_xTlbStruct->insert(pParent, nPos, &rText, &sId, nullptr, nullptr,
  80                                  false, &rRet);
  81             m_xTlbStruct->set_image(rRet, maImgEnd);
  82             bEntry = true;
  83             break;
  84         case STRUCT_ERROR:
  85             m_xTlbStruct->insert(pParent, nPos, &rText, &sId, nullptr, nullptr,
  86                                  false, &rRet);
  87             m_xTlbStruct->set_image(rRet, maImgError);
  88             bEntry = true;
  89             break;
  90     }
  91
  92     if (bEntry && pParent)
  93         m_xTlbStruct->expand_row(*pParent);
  94     return bEntry;
  95 }
  96
  97 OUString StructPage::GetEntryText(const weld::TreeIter* pEntry) const
  98 {
  99     OUString aString;
 100     if (pEntry)
 101         aString = m_xTlbStruct->get_text(*pEntry);
 102     return aString;
 103 }
 104
 105 const FormulaToken* StructPage::GetFunctionEntry(const weld::TreeIter* pEntry)
 106 {
 107     if (!pEntry)
 108         return nullptr;
 109
 110     const FormulaToken * pToken = weld::fromId<const FormulaToken*>(m_xTlbStruct->get_id(*pEntry));
 111     if (pToken)
 112     {
 113         if ( !(pToken->IsFunction() || pToken->GetParamCount() > 1 ) )
 114         {
 115             std::unique_ptr<weld::TreeIter> xParent(m_xTlbStruct->make_iterator(pEntry));
 116             if (!m_xTlbStruct->iter_parent(*xParent))
 117                 return nullptr;
 118             return GetFunctionEntry(xParent.get());
 119         }
 120         else
 121         {
 122             return pToken;
 123         }
 124     }
 125     return nullptr;
 126 }
 127
 128 IMPL_LINK(StructPage, SelectHdl, weld::TreeView&, rTlb, void)
 129 {
 130     if (!GetActiveFlag())
 131         return;
 132
 133     if (&rTlb == m_xTlbStruct.get())
 134     {
 135         std::unique_ptr<weld::TreeIter> xCurEntry(m_xTlbStruct->make_iterator());
 136         if (m_xTlbStruct->get_cursor(xCurEntry.get()))
 137         {
 138             pSelectedToken = weld::fromId<const FormulaToken*>(m_xTlbStruct->get_id(*xCurEntry));
 139             if (pSelectedToken)
 140             {
 141                 if ( !(pSelectedToken->IsFunction() || pSelectedToken->GetParamCount() > 1) )
 142                 {
 143                     pSelectedToken = GetFunctionEntry(xCurEntry.get());
 144                 }
 145             }
 146         }
 147     }
 148
 149     aSelLink.Call(*this);
 150 }
 151
 152 } // formula
 153
 154 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */