Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 248 insertions, 0 deletions

diff --git a/include/svx/EnhancedCustomShapeFunctionParser.hxx b/include/svx/EnhancedCustomShapeFunctionParser.hxx
new file mode 100644
index 000000000..150c39efc
--- /dev/null
+++ b/include/svx/EnhancedCustomShapeFunctionParser.hxx
@@ -0,0 +1,248 @@
+/* -*- 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_SVX_ENHANCEDCUSTOMSHAPEFUNCTIONPARSER_HXX
+#define INCLUDED_SVX_ENHANCEDCUSTOMSHAPEFUNCTIONPARSER_HXX
+
+#include <config_options.h>
+#include <sal/config.h>
+#include <com/sun/star/drawing/EnhancedCustomShapeParameter.hpp>
+#include <memory>
+#include <ostream>
+#include <vector>
+
+#include <svx/svxdllapi.h>
+
+struct EnhancedCustomShapeEquation
+{
+    sal_Int32   nOperation;
+    sal_Int32   nPara[ 3 ];
+
+    EnhancedCustomShapeEquation() :
+        nOperation  ( 0 )
+        {
+            nPara[ 0 ] = nPara[ 1 ] = nPara[ 2 ] = 0;
+        }
+};
+
+class EnhancedCustomShape2d;
+
+namespace EnhancedCustomShape {
+
+enum class ExpressionFunct
+{
+    Const,
+
+    EnumPi,
+    EnumLeft,
+    EnumTop,
+    EnumRight,
+    EnumBottom,
+    EnumXStretch,
+    EnumYStretch,
+    EnumHasStroke,
+    EnumHasFill,
+    EnumWidth,
+    EnumHeight,
+    EnumLogWidth,
+    EnumLogHeight,
+    EnumAdjustment,
+    EnumEquation,
+
+    UnaryAbs,
+    UnarySqrt,
+    UnarySin,
+    UnaryCos,
+    UnaryTan,
+    UnaryAtan,
+    UnaryNeg,
+
+    BinaryPlus,
+    BinaryMinus,
+    BinaryMul,
+    BinaryDiv,
+    BinaryMin,
+    BinaryMax,
+    BinaryAtan2,
+
+    TernaryIf
+};
+
+template< typename charT, typename traits >
+inline std::basic_ostream<charT, traits> & operator <<(
+    std::basic_ostream<charT, traits> & stream, const ExpressionFunct& eFunc )
+{
+    switch (eFunc)
+    {
+    case ExpressionFunct::Const : return stream << "const";
+
+    case ExpressionFunct::EnumPi : return stream << "pi";
+    case ExpressionFunct::EnumLeft : return stream << "left";
+    case ExpressionFunct::EnumTop : return stream << "top";
+    case ExpressionFunct::EnumRight : return stream << "right";
+    case ExpressionFunct::EnumBottom : return stream << "bottom";
+    case ExpressionFunct::EnumXStretch : return stream << "xstretch";
+    case ExpressionFunct::EnumYStretch : return stream << "ystretch";
+    case ExpressionFunct::EnumHasStroke : return stream << "hasstroke";
+    case ExpressionFunct::EnumHasFill : return stream << "hasfill";
+    case ExpressionFunct::EnumWidth : return stream << "width";
+    case ExpressionFunct::EnumHeight : return stream << "height";
+    case ExpressionFunct::EnumLogWidth : return stream << "logwidth";
+    case ExpressionFunct::EnumLogHeight : return stream << "logheight";
+    case ExpressionFunct::EnumAdjustment : return stream << "adjustment";
+    case ExpressionFunct::EnumEquation : return stream << "equation";
+
+    case ExpressionFunct::UnaryAbs : return stream << "abs";
+    case ExpressionFunct::UnarySqrt : return stream << "sqrt";
+    case ExpressionFunct::UnarySin : return stream << "sin";
+    case ExpressionFunct::UnaryCos : return stream << "cos";
+    case ExpressionFunct::UnaryTan : return stream << "tan";
+    case ExpressionFunct::UnaryAtan : return stream << "atan";
+    case ExpressionFunct::UnaryNeg : return stream << "neg";
+
+    case ExpressionFunct::BinaryPlus : return stream << "plus";
+    case ExpressionFunct::BinaryMinus : return stream << "minus";
+    case ExpressionFunct::BinaryMul : return stream << "mul";
+    case ExpressionFunct::BinaryDiv : return stream << "div";
+    case ExpressionFunct::BinaryMin : return stream << "min";
+    case ExpressionFunct::BinaryMax : return stream << "max";
+    case ExpressionFunct::BinaryAtan2 : return stream << "atan2";
+
+    case ExpressionFunct::TernaryIf : return stream << "if";
+
+    default: return stream << "?(" << static_cast<int>(eFunc) << ")";
+    }
+}
+
+#define EXPRESSION_FLAG_SUMANGLE_MODE 1
+
+SVXCORE_DLLPUBLIC void FillEquationParameter( const css::drawing::EnhancedCustomShapeParameter&, const sal_Int32, EnhancedCustomShapeEquation& );
+
+class SAL_DLLPUBLIC_RTTI ExpressionNode
+{
+public:
+    virtual ~ExpressionNode();
+
+    /** Predicate whether this node is constant.
+
+        This predicate returns true, if this node is
+        neither time- nor ViewInfo dependent. This allows
+        for certain optimizations, i.e. not the full
+        expression tree needs be represented by
+        ExpressionNodes.
+
+        @returns true, if the note is constant
+    */
+    virtual bool isConstant() const = 0;
+
+    /** Operator to calculate function value.
+
+        This method calculates the function value.
+    */
+    virtual double operator()() const = 0;
+
+    /** Operator to retrieve the type of expression node
+    */
+    virtual ExpressionFunct getType() const = 0;
+
+    /** Operator to retrieve the ms version of expression
+    */
+    virtual css::drawing::EnhancedCustomShapeParameter fillNode(
+        std::vector< EnhancedCustomShapeEquation >& rEquations, ExpressionNode* pOptionalArg, sal_uInt32 nFlags ) = 0;
+};
+
+/** This exception is thrown, when the arithmetic expression
+    parser failed to parse a string.
+    */
+struct ParseError
+{
+    ParseError( const char* ) {}
+};
+
+class FunctionParser
+{
+public:
+
+    /** Parse a string
+
+        The following grammar is accepted by this method:
+        <code>
+
+        number_digit = '0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9'
+
+        number = number number_digit | number_digit
+
+        identifier = 'pi'|'left'|'top'|'right'|'bottom'|'xstretch'|'ystretch'|
+                 'hasstroke'|'hasfill'|'width'|'height'|'logwidth'|'logheight'
+
+        unary_function = 'abs'|'sqrt'|'sin'|'cos'|'tan'|'atan'
+        binary_function = 'min'|'max'|'atan2'
+        ternary_function = 'if'
+
+        function_reference = '?' 'a-z,A-Z,0-9' ' '
+        modifier_reference = '$' '0-9' ' '
+
+        basic_expression =
+            number |
+            identifier |
+            function_reference |
+            unary_function '(' additive_expression ')' |
+            binary_function '(' additive_expression ',' additive_expression ')' |
+            ternary_function '(' additive_expression ',' additive_expression ',
+                               ' additive_expression ')' | '(' additive_expression ')'
+
+        unary_expression = '-' basic_expression
+
+        multiplicative_expression =
+                          basic_expression |
+                          multiplicative_expression '*' basic_expression |
+                          multiplicative_expression '/' basic_expression
+
+        additive_expression =
+                        multiplicative_expression |
+                        additive_expression '+' multiplicative_expression |
+                        additive_expression '-' multiplicative_expression
+
+        </code>
+
+        @param rFunction
+        The string to parse
+
+        @param rCustoShape
+        The CustomShape is required for calculation of dynamic values such
+        "hasstroke", function references and or modifier references ...
+
+        @throws ParseError if an invalid expression is given.
+
+        @return the generated function object.
+       */
+
+    UNLESS_MERGELIBS(SVXCORE_DLLPUBLIC) static std::shared_ptr<ExpressionNode> const & parseFunction( const OUString& rFunction, const EnhancedCustomShape2d& rCustoShape );
+
+    // this is a singleton
+    FunctionParser() = delete;
+    FunctionParser(const FunctionParser&) = delete;
+    FunctionParser& operator=( const FunctionParser& ) = delete;
+};
+
+}
+
+#endif // INCLUDED_SVX_ENHANCEDCUSTOMSHAPEFUNCTIONPARSER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */