1 files changed, 274 insertions, 0 deletions
diff --git a/starmath/source/symbol.cxx b/starmath/source/symbol.cxx
new file mode 100644
index 000000000..5e6a6486a
--- /dev/null
+++ b/starmath/source/symbol.cxx
@@ -0,0 +1,274 @@
+/* -*- 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 <vector>
+
+#include <symbol.hxx>
+#include <utility.hxx>
+#include "cfgitem.hxx"
+#include <smmod.hxx>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+
+
+SmSym::SmSym() :
+    m_aName(OUString("unknown")),
+    m_aSetName(OUString("unknown")),
+    m_cChar('\0'),
+    m_bPredefined(false)
+{
+    m_aExportName = m_aName;
+    m_aFace.SetTransparent(true);
+    m_aFace.SetAlignment(ALIGN_BASELINE);
+}
+
+
+SmSym::SmSym(const SmSym& rSymbol)
+{
+    *this = rSymbol;
+}
+
+
+SmSym::SmSym(const OUString& rName, const vcl::Font& rFont, sal_UCS4 cChar,
+             const OUString& rSet, bool bIsPredefined)
+{
+    m_aName     = m_aExportName   = rName;
+
+    m_aFace     = rFont;
+    m_aFace.SetTransparent(true);
+    m_aFace.SetAlignment(ALIGN_BASELINE);
+
+    m_cChar         = cChar;
+    m_aSetName      = rSet;
+    m_bPredefined   = bIsPredefined;
+}
+
+
+SmSym& SmSym::operator = (const SmSym& rSymbol)
+{
+    m_aName         = rSymbol.m_aName;
+    m_aExportName   = rSymbol.m_aExportName;
+    m_cChar         = rSymbol.m_cChar;
+    m_aFace         = rSymbol.m_aFace;
+    m_aSetName      = rSymbol.m_aSetName;
+    m_bPredefined   = rSymbol.m_bPredefined;
+
+    SM_MOD()->GetSymbolManager().SetModified(true);
+
+    return *this;
+}
+
+
+bool SmSym::IsEqualInUI( const SmSym& rSymbol ) const
+{
+    return  m_aName == rSymbol.m_aName &&
+            m_aFace == rSymbol.m_aFace &&
+            m_cChar == rSymbol.m_cChar;
+}
+
+/**************************************************************************/
+
+
+SmSymbolManager::SmSymbolManager()
+{
+    m_bModified     = false;
+}
+
+
+SmSymbolManager::SmSymbolManager(const SmSymbolManager& rSymbolSetManager)
+{
+    m_aSymbols      = rSymbolSetManager.m_aSymbols;
+    m_bModified     = true;
+}
+
+
+SmSymbolManager::~SmSymbolManager()
+{
+}
+
+
+SmSymbolManager& SmSymbolManager::operator = (const SmSymbolManager& rSymbolSetManager)
+{
+    m_aSymbols      = rSymbolSetManager.m_aSymbols;
+    m_bModified     = true;
+    return *this;
+}
+
+
+SmSym *SmSymbolManager::GetSymbolByName(const OUString& rSymbolName)
+{
+    SmSym *pRes = nullptr;
+    SymbolMap_t::iterator aIt( m_aSymbols.find( rSymbolName ) );
+    if (aIt != m_aSymbols.end())
+        pRes = &aIt->second;
+    return pRes;
+}
+
+
+SymbolPtrVec_t SmSymbolManager::GetSymbols() const
+{
+    SymbolPtrVec_t aRes;
+    for (const auto& rEntry : m_aSymbols)
+        aRes.push_back( &rEntry.second );
+//    OSL_ENSURE( sSymbols.size() == m_aSymbols.size(), "number of symbols mismatch " );
+    return aRes;
+}
+
+
+bool SmSymbolManager::AddOrReplaceSymbol( const SmSym &rSymbol, bool bForceChange )
+{
+    bool bAdded = false;
+
+    const OUString& aSymbolName( rSymbol.GetName() );
+    if (!aSymbolName.isEmpty() && !rSymbol.GetSymbolSetName().isEmpty())
+    {
+        const SmSym *pFound = GetSymbolByName( aSymbolName );
+        const bool bSymbolConflict = pFound && !pFound->IsEqualInUI( rSymbol );
+
+        // avoid having the same symbol name twice but with different symbols in use
+        if (!pFound || bForceChange)
+        {
+            m_aSymbols[ aSymbolName ] = rSymbol;
+            bAdded = true;
+        }
+        else if (bSymbolConflict)
+        {
+            // TODO: to solve this a document owned symbol manager would be required ...
+                SAL_WARN("starmath", "symbol conflict, different symbol with same name found!");
+            // symbols in all formulas. A copy of the global one would be needed here
+            // and then the new symbol has to be forcefully applied. This would keep
+            // the current formula intact but will leave the set of symbols in the
+            // global symbol manager somewhat to chance.
+        }
+
+        OSL_ENSURE( bAdded, "failed to add symbol" );
+        if (bAdded)
+            m_bModified = true;
+        OSL_ENSURE( bAdded || (pFound && !bSymbolConflict), "AddOrReplaceSymbol: unresolved symbol conflict" );
+    }
+
+    return bAdded;
+}
+
+
+void SmSymbolManager::RemoveSymbol( const OUString & rSymbolName )
+{
+    if (!rSymbolName.isEmpty())
+    {
+        size_t nOldSize = m_aSymbols.size();
+        m_aSymbols.erase( rSymbolName );
+        m_bModified = nOldSize != m_aSymbols.size();
+    }
+}
+
+
+std::set< OUString > SmSymbolManager::GetSymbolSetNames() const
+{
+    std::set< OUString >  aRes;
+    for (const auto& rEntry : m_aSymbols)
+        aRes.insert( rEntry.second.GetSymbolSetName() );
+    return aRes;
+}
+
+
+SymbolPtrVec_t SmSymbolManager::GetSymbolSet( const OUString& rSymbolSetName )
+{
+    SymbolPtrVec_t aRes;
+    if (!rSymbolSetName.isEmpty())
+    {
+        for (const auto& rEntry : m_aSymbols)
+        {
+            if (rEntry.second.GetSymbolSetName() == rSymbolSetName)
+                aRes.push_back( &rEntry.second );
+        }
+    }
+    return aRes;
+}
+
+
+void SmSymbolManager::Load()
+{
+    std::vector< SmSym > aSymbols;
+    SmMathConfig &rCfg = *SM_MOD()->GetConfig();
+    rCfg.GetSymbols( aSymbols );
+    size_t nSymbolCount = aSymbols.size();
+
+    m_aSymbols.clear();
+    for (size_t i = 0;  i < nSymbolCount;  ++i)
+    {
+        const SmSym &rSym = aSymbols[i];
+        OSL_ENSURE( !rSym.GetName().isEmpty(), "symbol without name!" );
+        if (!rSym.GetName().isEmpty())
+            AddOrReplaceSymbol( rSym );
+    }
+    m_bModified = true;
+
+    if (0 == nSymbolCount)
+    {
+        SAL_WARN("starmath", "no symbol set found");
+        m_bModified = false;
+    }
+
+    // now add a %i... symbol to the 'iGreek' set for every symbol found in the 'Greek' set.
+    const OUString aGreekSymbolSetName(SmLocalizedSymbolData::GetUiSymbolSetName("Greek"));
+    const SymbolPtrVec_t    aGreekSymbols( GetSymbolSet( aGreekSymbolSetName ) );
+    OUString aSymbolSetName = "i" + aGreekSymbolSetName;
+    size_t nSymbols = aGreekSymbols.size();
+    for (size_t i = 0;  i < nSymbols;  ++i)
+    {
+        // make the new symbol a copy but with ITALIC_NORMAL, and add it to iGreek
+        const SmSym &rSym = *aGreekSymbols[i];
+        vcl::Font aFont( rSym.GetFace() );
+        OSL_ENSURE( aFont.GetItalic() == ITALIC_NONE, "expected Font with ITALIC_NONE, failed." );
+        aFont.SetItalic( ITALIC_NORMAL );
+        OUString aSymbolName = "i" + rSym.GetName();
+        SmSym aSymbol( aSymbolName, aFont, rSym.GetCharacter(),
+                aSymbolSetName, true /*bIsPredefined*/ );
+
+        AddOrReplaceSymbol( aSymbol );
+    }
+}
+
+void SmSymbolManager::Save()
+{
+    if (!m_bModified)
+        return;
+
+    SmMathConfig &rCfg = *SM_MOD()->GetConfig();
+
+    // prepare to skip symbols from iGreek on saving
+    OUString aSymbolSetName = "i" +
+        SmLocalizedSymbolData::GetUiSymbolSetName("Greek");
+
+    SymbolPtrVec_t aTmp( GetSymbols() );
+    std::vector< SmSym > aSymbols;
+    for (const SmSym* i : aTmp)
+    {
+        // skip symbols from iGreek set since those symbols always get added
+        // by computational means in SmSymbolManager::Load
+        if (i->GetSymbolSetName() != aSymbolSetName)
+            aSymbols.push_back( *i );
+    }
+    rCfg.SetSymbols( aSymbols );
+
+    m_bModified = false;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */