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Diffstat (limited to 'reportdesign/inc/reportformula.hxx')
-rw-r--r-- | reportdesign/inc/reportformula.hxx | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/reportdesign/inc/reportformula.hxx b/reportdesign/inc/reportformula.hxx new file mode 100644 index 000000000..b94368701 --- /dev/null +++ b/reportdesign/inc/reportformula.hxx @@ -0,0 +1,119 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_REPORTDESIGN_INC_REPORTFORMULA_HXX +#define INCLUDED_REPORTDESIGN_INC_REPORTFORMULA_HXX + +#include "dllapi.h" + +#include <osl/diagnose.h> +#include <rtl/ustring.hxx> + + +namespace rptui +{ + + + //= ReportFormula + + class REPORTDESIGN_DLLPUBLIC ReportFormula + { + public: + enum BindType + { + Expression, + Field, + + Invalid + }; + + private: + BindType m_eType; + OUString m_sCompleteFormula; + OUString m_sUndecoratedContent; + + public: + /// constructs a ReportFormula object from a string + ReportFormula( const OUString& _rFormula ); + + /// constructs a ReportFormula by BindType + ReportFormula( const BindType _eType, const OUString& _rFieldOrExpression ); + ~ReportFormula(); + + /// returns whether the object denotes a valid formula + bool isValid() const; + + /// returns the type of the binding represented by the formula + BindType getType() const { return m_eType; } + + /// returns the complete formula represented by the object + const OUString& + getCompleteFormula() const { return m_sCompleteFormula; } + + /** gets the <em>undecorated formula</em> content + + If the formula denotes a field binding, the <em>undecorated content</em> is the + field name. + + If the formula denotes an expression, then the <em>undecorated content</em> is the expression + itself. + */ + const OUString& getUndecoratedContent() const { return m_sUndecoratedContent; } + + /// convenience alias for <code>getUndecoratedContent</code>, which asserts (in a non-product build) when used on an expression + inline OUString const & getFieldName() const; + + /** + @returns "=" + getFieldName() + */ + OUString getEqualUndecoratedContent() const; + + /// convenience alias for <code>getUndecoratedContent</code>, which asserts (in a non-product build) when used on a field + inline OUString const & getExpression() const; + + /** returns a bracketed field name of the formula denotes a field reference, + or the undecorated expression if the formula denotes an expression. + + Effectively, this means the method returns the complete formula, stripped by the prefix + which indicates a field or an expression. + */ + OUString getBracketedFieldOrExpression() const; + }; + + + inline OUString const & ReportFormula::getFieldName() const + { + OSL_PRECOND( getType() == Field, "ReportFormula::getFieldName: not bound to a field!" ); + return getUndecoratedContent(); + } + + + inline OUString const & ReportFormula::getExpression() const + { + OSL_PRECOND( getType() == Expression, "ReportFormula::getExpression: not bound to an expression!" ); + return getUndecoratedContent(); + } + + +} // namespace rptui + + +#endif // INCLUDED_REPORTDESIGN_INC_REPORTFORMULA_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |