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office-gobmx/starmath/inc/node.hxx
Noel Grandin 4dbe4a9313 loplugin:passstuffbyref 
Change-Id: I4f01eb3842ef198f02af274f54afb2760c820a4b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/120655
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2021-08-18 18:19:09 +02:00

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/* -*- 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 .
*/
/** The SmNode is the basic structure of formula data.
*
* Each token is stored in one node of specific kind.
* They can have SmNodeType. It allows to identify node type after abstraction.
* Here goes the subclasses tree:
*
* SmRect
* SmNode
* SmStructureNode Head of tree diagram
* SmTableNode binom
* SmLineNode A line
* SmExpressionNode { content }
* SmUnHorNode unary operators +-; -+; +x; -x; ...
* SmRootNode Root structure
* SmBinHorNode binary operators A + B
* SmBinVerNode over; frac; ...
* SmBinDiagonalNode wideslash
* SmSubSupNode csub, csup, lsub, from, to, ...
* SmBraceNode (); []; left lbrace right rbrace; ...
* SmBracebodyNode ( content ); [ content ]; ...
* SmVerticalBraceNode overbrace; underbrace;
* SmOperNode sum from to; int from to;
* SmAlignNode text alignment
* SmAttributeNode font attributes; bold;
* SmFontNode font serif; ...
* SmMatrixNode matrix
* SmVisibleNode drawable node
* SmGraphicNode graphics display
* SmRectangleNode
* SmPolyLineNode overline; underline; widehat; ...
* SmBlankNode blank space; ~; ...
* SmTextNode "text"; func functname; ...
* SmSpecialNode
* SmGlyphSpecialNode %symbolname
* SmMathSymbolNode math symbols
* SmMathIdentifierNode variable
* SmRootSymbolNode root symbol
* SmPlaceNode <?>
* SmErrorNode red ? for errors
*
*/
#pragma once
#include "types.hxx"
#include "token.hxx"
#include "rect.hxx"
#include "format.hxx"
#include "nodetype.hxx"
#include <editeng/editdata.hxx>
enum class FontAttribute {
None = 0x0000,
Bold = 0x0001,
Italic = 0x0002
};
namespace o3tl
{
template<> struct typed_flags<FontAttribute> : is_typed_flags<FontAttribute, 0x0003> {};
}
enum class FontSizeType {
ABSOLUT = 1,
PLUS = 2,
MINUS = 3,
MULTIPLY = 4,
DIVIDE = 5
};
// flags to interdict respective status changes
enum class FontChangeMask {
None = 0x0000,
Face = 0x0001,
Size = 0x0002,
Bold = 0x0004,
Italic = 0x0008,
Color = 0x0010,
Phantom = 0x0020
};
namespace o3tl
{
template<> struct typed_flags<FontChangeMask> : is_typed_flags<FontChangeMask, 0x003f> {};
}
class SmVisitor;
class SmDocShell;
class SmNode;
class SmStructureNode;
typedef std::vector< SmNode * > SmNodeArray;
enum class SmScaleMode
{
None,
Width,
Height
};
class SmNode : public SmRect
{
// Rendering info for SmRect
SmFace maFace;
// Anclage to the code
SmToken maNodeToken;
ESelection m_aESelection;
// Node information
SmNodeType meType;
SmScaleMode meScaleMode;
RectHorAlign meRectHorAlign;
FontChangeMask mnFlags;
FontAttribute mnAttributes;
bool mbIsPhantom;
bool mbIsSelected;
// index in accessible text; -1 if not (yet) applicable
sal_Int32 mnAccIndex;
protected:
SmNode(SmNodeType eNodeType, const SmToken &rNodeToken);
public:
SmNode(const SmNode&) = delete;
SmNode& operator=(const SmNode&) = delete;
virtual ~SmNode();
/**
* Checks node visibility.
* Returns true if this is an instance of SmVisibleNode's subclass, false otherwise.
* @return node visibility
*/
virtual bool IsVisible() const = 0;
/**
* Gets the number of subnodes.
* @return number of subnodes
*/
virtual size_t GetNumSubNodes() const = 0;
/**
* Gets the subnode of index nIndex.
* @param nIndex
* @return subnode of index nIndex
*/
virtual SmNode * GetSubNode(size_t nIndex) = 0;
const SmNode * GetSubNode(size_t nIndex) const
{ return const_cast<SmNode *>(this)->GetSubNode(nIndex); }
virtual const SmNode * GetLeftMost() const;
/**
* Gets the FontChangeMask flags.
* @return FontChangeMask flags
*/
FontChangeMask &Flags() { return mnFlags; }
/**
* Gets the font attributes.
* @return font attributes
*/
FontAttribute &Attributes() { return mnAttributes; }
/**
* Checks if it is a visible node rendered invisible.
* @return rendered visibility
*/
bool IsPhantom() const { return mbIsPhantom; }
/**
* Sets the render visibility of a visible node to bIsPhantom.
* @param bIsPhantom
* @return
*/
void SetPhantom(bool bIsPhantom);
/**
* Sets the font color.
* @param rColor
* @return
*/
void SetColor(const Color &rColor);
/**
* Sets the font attribute nAttrib.
* Check FontAttribute class.
* @param nAttrib
* @return
*/
void SetAttribute(FontAttribute nAttrib);
/**
* Clears the font attribute nAttrib.
* Check FontAttribute class.
* @param nAttrib
* @return
*/
void ClearAttribute(FontAttribute nAttrib);
/**
* Gets the font.
* @return font
*/
const SmFace & GetFont() const { return maFace; };
SmFace & GetFont() { return maFace; };
/**
* Sets the font to rFace.
* @param rFace
* @return
*/
void SetFont(const SmFace &rFace);
/**
* Sets the font size to rRelSize with type nType.
* Check FontSizeType for details.
* @param rRelSize
* @param nType
* @return
*/
void SetFontSize(const Fraction &rRelSize, FontSizeType nType);
/**
* Sets the font size to rRelSize with type FontSizeType::ABSOLUT.
* @param rScale
* @return
*/
void SetSize(const Fraction &rScale);
/**
* Prepare preliminary settings about font and text
* (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
* @param rFormat
* @param rDocShell
* @param nDepth
* @return
*/
virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth);
/**
* Prepare preliminary font attributes
* Called on Prepare(...).
* @return
*/
void PrepareAttributes();
/**
* Sets the alignment of the text.
* Check RectHorAlign class for details.
* The subtrees will be affected if bApplyToSubTree.
* @param eHorAlign
* @param bApplyToSubTree
* @return
*/
void SetRectHorAlign(RectHorAlign eHorAlign, bool bApplyToSubTree = true );
/**
* Gets the alignment of the text.
* @return alignment of the text
*/
RectHorAlign GetRectHorAlign() const { return meRectHorAlign; }
/**
* Parses itself to SmRect.
* @return this
*/
const SmRect & GetRect() const { return *this; }
/**
* Moves the rectangle by rVector.
* @param rVector
* @return
*/
void Move(const Point &rVector);
/**
* Moves the rectangle to rPoint, being the top left corner the origin.
* @param rPoint
* @return
*/
void MoveTo(const Point &rPoint) { Move(rPoint - GetTopLeft()); }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) = 0;
/**
* Appends to rText the node text.
* @param rText
* @return
*/
virtual void GetAccessibleText( OUStringBuffer &rText ) const = 0;
/**
* Gets the node accessible index.
* Used for visual editing.
* @return node accessible index
*/
sal_Int32 GetAccessibleIndex() const { return mnAccIndex; }
/**
* Sets the node accessible index to nAccIndex.
* Used for visual editing.
* @param nAccIndex
* @return
*/
void SetAccessibleIndex(sal_Int32 nAccIndex) { mnAccIndex = nAccIndex; }
/**
* Finds the node with accessible index nAccIndex.
* Used for visual editing.
* @param nAccIndex
* @return node with accessible index nAccIndex
*/
const SmNode * FindNodeWithAccessibleIndex(sal_Int32 nAccIndex) const;
/**
* Gets the line in the text where the node is located.
* It is used to do the visual <-> text correspondence.
* @return line
*/
sal_uInt16 GetRow() const { return sal::static_int_cast<sal_uInt16>(m_aESelection.nStartPara); }
/**
* Gets the column of the line in the text where the node is located.
* It is used to do the visual <-> text correspondence.
* @return column
*/
sal_uInt16 GetColumn() const { return sal::static_int_cast<sal_uInt16>(m_aESelection.nStartPos); }
/**
* Gets the scale mode.
* @return scale mode
*/
SmScaleMode GetScaleMode() const { return meScaleMode; }
/**
* Sets the scale mode to eMode.
* @param eMode
* @return
*/
void SetScaleMode(SmScaleMode eMode) { meScaleMode = eMode; }
//visual stuff TODO comment
virtual void AdaptToX(OutputDevice &rDev, sal_uLong nWidth);
virtual void AdaptToY(OutputDevice &rDev, sal_uLong nHeight);
/**
* Gets the node type.
* @return node type
*/
SmNodeType GetType() const { return meType; }
/**
* Gets the token.
* The token contains the data extracted from the text mode.
* Ej: text, type (sub, sup, int,...), row and column,...
* @return node type
*/
const SmToken & GetToken() const { return maNodeToken; }
SmToken & GetToken() { return maNodeToken; }
/**
* Gets node position in input text.
* @return node position in input text
*/
const ESelection& GetSelection() const { return m_aESelection; }
/**
* Gets node position in input text.
* @param aESelection
*/
void SetSelection(ESelection aESelection) { m_aESelection = aESelection; }
/**
* Finds the node from the position in the text.
* It is used to do the visual <-> text correspondence.
* @param nRow
* @param nCol
* @return the given node
*/
const SmNode * FindTokenAt(sal_uInt16 nRow, sal_uInt16 nCol) const;
/**
* Finds the closest rectangle in the screen.
* @param rPoint
* @return the given node
*/
const SmNode * FindRectClosestTo(const Point &rPoint) const;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
virtual void Accept(SmVisitor* pVisitor) = 0;
/**
* Checks if the node is selected.
* @return the node is selected
*/
bool IsSelected() const {return mbIsSelected;}
/**
* Sets the node to Selected.
* @param Selected
* @return
*/
void SetSelected(bool Selected) {mbIsSelected = Selected;}
/**
* Gets the parent node of this node.
* @return parent node
*/
const SmStructureNode* GetParent() const { return mpParentNode; }
SmStructureNode* GetParent() { return mpParentNode; }
/**
* Sets the parent node.
* @param parent
* @return
*/
void SetParent(SmStructureNode* parent){ mpParentNode = parent; }
/**
* Sets the token for this node.
* @param token
* @return
*/
void SetToken(SmToken const & token){ maNodeToken = token; }
private:
SmStructureNode* mpParentNode;
};
/** Abstract baseclass for all composite node
*
* Subclasses of this class can have subnodes. Nodes that doesn't derivate from
* this class does not have subnodes.
*/
class SmStructureNode : public SmNode
{
SmNodeArray maSubNodes;
protected:
SmStructureNode(SmNodeType eNodeType, const SmToken &rNodeToken, size_t nSize = 0)
: SmNode(eNodeType, rNodeToken)
, maSubNodes(nSize) {}
public:
virtual ~SmStructureNode() override;
/**
* Checks node visibility.
* Returns true if this is an instance of SmVisibleNode's subclass, false otherwise.
* @return node visibility
*/
virtual bool IsVisible() const override;
/**
* Gets the number of subnodes.
* @return number of subnodes
*/
virtual size_t GetNumSubNodes() const override;
/**
* Gets the subnode of index nIndex.
* @param nIndex
* @return subnode of index nIndex
*/
using SmNode::GetSubNode;
virtual SmNode * GetSubNode(size_t nIndex) override;
/**
* Gets the subnode of index nIndex, used for operators.
* @param nIndex
* @return subnode of index nIndex
*/
SmNode * GetSubNodeBinMo(size_t nIndex) const;
/**
* Does the cleaning of the subnodes.
* @return
*/
void ClearSubNodes();
/**
* Sets subnodes, used for operators.
* @param pFirst
* @param pSecond
* @param pThird
* @return
*/
void SetSubNodes(std::unique_ptr<SmNode> pFirst, std::unique_ptr<SmNode> pSecond,
std::unique_ptr<SmNode> pThird = nullptr);
/**
* Sets subnodes.
* @param pFirst
* @param pSecond
* @param pThird
* @return
*/
void SetSubNodes(SmNode* pFirst, SmNode* pSecond, SmNode* pThird);
/**
* Sets subnodes, used for operators.
* The data is reordered so the items are correctly ordered.
* @param pFirst
* @param pSecond
* @param pThird
* @return
*/
void SetSubNodesBinMo(std::unique_ptr<SmNode> pFirst, std::unique_ptr<SmNode> pSecond,
std::unique_ptr<SmNode> pThird = nullptr);
/**
* Sets subnodes, used for operators.
* The data is reordered so the items are correctly ordered.
* @param pFirst
* @param pSecond
* @param pThird
* @return
*/
void SetSubNodesBinMo(SmNode* pFirst, SmNode* pSecond, SmNode* pThird);
/**
* Sets subnodes.
* @param rNodeArray
* @return
*/
void SetSubNodes(SmNodeArray&& rNodeArray);
/**
* Appends to rText the node text.
* @param rText
* @return
*/
virtual void GetAccessibleText( OUStringBuffer &rText ) const override;
/**
* Gets the first subnode.
* @return first subnode
*/
SmNodeArray::iterator begin() {return maSubNodes.begin();}
/**
* Gets the last subnode.
* @return last subnode
*/
SmNodeArray::iterator end() {return maSubNodes.end();}
/**
* Gets the last subnode.
* @return last subnode
*/
SmNodeArray::reverse_iterator rbegin() {return maSubNodes.rbegin();}
/**
* Gets the first subnode.
* @return first subnode
*/
SmNodeArray::reverse_iterator rend() {return maSubNodes.rend();}
/**
* Get the index of the child node pSubNode.
* Returns -1, if pSubNode isn't a subnode of this.
* @param pSubNode
* @return index of the child node
*/
int IndexOfSubNode(SmNode const * pSubNode);
/**
* Sets the subnode pNode at nIndex.
* If necessary increases the subnodes length.
* @param nIndex
* @param pNode
* @return
*/
void SetSubNode(size_t nIndex, SmNode* pNode);
private:
/** Sets parent on children of this node */
void ClaimPaternity();
};
/** Abstract base class for all visible node
*
* Nodes that doesn't derivate from this class doesn't draw anything, but their
* children.
*/
class SmVisibleNode : public SmNode
{
protected:
SmVisibleNode(SmNodeType eNodeType, const SmToken &rNodeToken)
: SmNode(eNodeType, rNodeToken) {}
public:
/**
* Checks node visibility.
* Returns true if this is an instance of SmVisibleNode's subclass, false otherwise.
* @return node visibility
*/
virtual bool IsVisible() const override;
/**
* Gets the number of subnodes.
* @return number of subnodes
*/
virtual size_t GetNumSubNodes() const override;
/**
* Gets the subnode of index nIndex.
* @param nIndex
* @return subnode of index nIndex
*/
using SmNode::GetSubNode;
virtual SmNode * GetSubNode(size_t nIndex) override;
};
class SmGraphicNode : public SmVisibleNode
{
protected:
SmGraphicNode(SmNodeType eNodeType, const SmToken &rNodeToken)
: SmVisibleNode(eNodeType, rNodeToken) {}
public:
/**
* Appends to rText the node text.
* @param rText
* @return
*/
virtual void GetAccessibleText( OUStringBuffer &rText ) const override;
};
/** Draws a rectangle
*
* Used for drawing the line in the OVER and OVERSTRIKE commands.
*/
class SmRectangleNode final : public SmGraphicNode
{
Size maToSize;
public:
explicit SmRectangleNode(const SmToken &rNodeToken)
: SmGraphicNode(SmNodeType::Rectangle, rNodeToken)
{}
//visual stuff TODO comment
virtual void AdaptToX(OutputDevice &rDev, sal_uLong nWidth) override;
virtual void AdaptToY(OutputDevice &rDev, sal_uLong nHeight) override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Polygon line node
*
* Used to draw the slash of the WIDESLASH command by SmBinDiagonalNode.
*/
class SmPolyLineNode final : public SmGraphicNode
{
tools::Polygon maPoly;
Size maToSize;
tools::Long mnWidth;
public:
explicit SmPolyLineNode(const SmToken &rNodeToken);
/**
* Gets the width of the rect.
* @return width
*/
tools::Long GetWidth() const { return mnWidth; }
/**
* Gets the polygon to draw the node.
* @return polygon
*/
tools::Polygon &GetPolygon() { return maPoly; }
//visual stuff TODO comment
virtual void AdaptToX(OutputDevice &rDev, sal_uLong nWidth) override;
virtual void AdaptToY(OutputDevice &rDev, sal_uLong nHeight) override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Text node
*
* @remarks This class also serves as baseclass for all nodes that contains text.
*/
class SmTextNode : public SmVisibleNode
{
protected:
OUString maText;
sal_uInt16 mnFontDesc;
/** Index within text where the selection starts
* @remarks Only valid if SmNode::IsSelected() is true
*/
sal_Int32 mnSelectionStart;
/** Index within text where the selection ends
* @remarks Only valid if SmNode::IsSelected() is true
*/
sal_Int32 mnSelectionEnd;
protected:
SmTextNode(SmNodeType eNodeType, const SmToken &rNodeToken, sal_uInt16 nFontDescP );
public:
SmTextNode(const SmToken &rNodeToken, sal_uInt16 nFontDescP );
/**
* Returns the font type being used (text, variable, symbol, ...).
* @return font type
*/
sal_uInt16 GetFontDesc() const { return mnFontDesc; }
/**
* Sets the node text to rText.
* @param rText
* @return
*/
void SetText(const OUString &rText) { maText = rText; }
/**
* Gets the node text.
* @return node text
*/
const OUString & GetText() const { return maText; }
OUString & GetText() { return maText; }
/**
* Change the text of this node, including the underlying token to rText.
* @param rText
* @return
*/
void ChangeText(const OUString &rText);
/**
* Try to guess the correct FontDesc, used during visual editing
* @return
*/
void AdjustFontDesc();
/**
* Index within GetText() where the selection starts.
* @remarks Only valid of SmNode::IsSelected() is true.
* @return index.
*/
sal_Int32 GetSelectionStart() const { return mnSelectionStart; }
/**
* Index within GetText() where the selection ends.
* @remarks Only valid of SmNode::IsSelected() is true.
* @return index.
*/
sal_Int32 GetSelectionEnd() const {return mnSelectionEnd; }
/**
* Sets the index within GetText() where the selection starts to index.
* @param index
* @return
*/
void SetSelectionStart(sal_Int32 index) {mnSelectionStart = index;}
/**
* Sets the index within GetText() where the selection ends to index.
* @param index
* @return
*/
void SetSelectionEnd(sal_Int32 index) {mnSelectionEnd = index;}
/**
* Prepare preliminary settings about font and text
* (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
* @param rFormat
* @param rDocShell
* @param nDepth
* @return
*/
virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
int nDepth) override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Appends to rText the node text.
* @param rText
* @return
*/
virtual void GetAccessibleText( OUStringBuffer &rText ) const override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
/**
* Converts the character from StarMath's private area symbols to a matching Unicode
* character, if necessary. To be used when converting GetText() to a normal text.
* @param nIn
* @return unicode char
*/
static sal_Unicode ConvertSymbolToUnicode(sal_Unicode nIn);
};
/** Special node for user defined characters
*
* Node used for pre- and user-defined characters from:
* officecfg/registry/data/org/openoffice/Office/Math.xcu
*
* This is just single characters, I think.
*/
class SmSpecialNode : public SmTextNode
{
bool mbIsFromGreekSymbolSet;
protected:
SmSpecialNode(SmNodeType eNodeType, const SmToken &rNodeToken, sal_uInt16 _nFontDesc);
public:
explicit SmSpecialNode(const SmToken &rNodeToken);
/**
* Prepare preliminary settings about font and text
* (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
* @param rFormat
* @param rDocShell
* @param nDepth
* @return
*/
virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
int nDepth) override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Glyph node for custom operators
*
* This node is used with commands: oper, uoper and boper.
* E.g. in "A boper op B", "op" will be an instance of SmGlyphSpecialNode.
* "boper" simply interprets "op", the following token, as a binary operator.
* The command "uoper" interprets the following token as unary operator.
* For these commands an instance of SmGlyphSpecialNode is used for the
* operator token, following the command.
*/
class SmGlyphSpecialNode final : public SmSpecialNode
{
public:
explicit SmGlyphSpecialNode(const SmToken &rNodeToken)
: SmSpecialNode(SmNodeType::GlyphSpecial, rNodeToken, FNT_MATH)
{}
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Math symbol node
*
* Use for math symbols such as plus, minus and integral in the INT command.
*/
class SmMathSymbolNode : public SmSpecialNode
{
protected:
SmMathSymbolNode(SmNodeType eNodeType, const SmToken &rNodeToken)
: SmSpecialNode(eNodeType, rNodeToken, FNT_MATH)
{
SetText(GetToken().cMathChar);
}
public:
explicit SmMathSymbolNode(const SmToken &rNodeToken);
//visual stuff TODO comment
virtual void AdaptToX(OutputDevice &rDev, sal_uLong nWidth) override;
virtual void AdaptToY(OutputDevice &rDev, sal_uLong nHeight) override;
/**
* Prepare preliminary settings about font and text
* (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
* @param rFormat
* @param rDocShell
* @param nDepth
* @return
*/
virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
int nDepth) override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Math Identifier
*
* This behaves essentially the same as SmMathSymbolNode and is only used to
* represent math symbols that should be exported as <mi> elements rather than
* <mo> elements.
*/
class SmMathIdentifierNode final : public SmMathSymbolNode
{
public:
explicit SmMathIdentifierNode(const SmToken &rNodeToken)
: SmMathSymbolNode(SmNodeType::MathIdent, rNodeToken) {}
};
/** Root symbol node
*
* Root symbol node used by SmRootNode to create the root symbol, in front of
* the line with the line above. I don't think this node should be used for
* anything else.
*/
class SmRootSymbolNode final : public SmMathSymbolNode
{
sal_uLong mnBodyWidth; // width of body (argument) of root sign
public:
explicit SmRootSymbolNode(const SmToken &rNodeToken)
: SmMathSymbolNode(SmNodeType::RootSymbol, rNodeToken)
, mnBodyWidth(0) { }
/**
* Gets the body width.
* Allows to know how long is the root and paint it.
* @return body width
*/
sal_uLong GetBodyWidth() const {return mnBodyWidth;};
//visual stuff TODO comment
virtual void AdaptToX(OutputDevice &rDev, sal_uLong nHeight) override;
virtual void AdaptToY(OutputDevice &rDev, sal_uLong nHeight) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Place node
*
* Used to create the <?> command, that denotes place where something can be
* written.
* It is drawn as a square with a shadow.
*/
class SmPlaceNode final : public SmMathSymbolNode
{
public:
explicit SmPlaceNode(const SmToken &rNodeToken)
: SmMathSymbolNode(SmNodeType::Place, rNodeToken) { }
SmPlaceNode() : SmMathSymbolNode(SmNodeType::Place, SmToken(TPLACE, MS_PLACE, "<?>")) { };
/**
* Prepare preliminary settings about font and text
* (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
* @param rFormat
* @param rDocShell
* @param nDepth
* @return
*/
virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
int nDepth) override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Error node, for parsing errors
*
* This node is used for parsing errors and draws a questionmark turned upside
* down (inverted question mark).
*/
class SmErrorNode final : public SmMathSymbolNode
{
public:
explicit SmErrorNode(const SmToken &rNodeToken)
: SmMathSymbolNode(SmNodeType::Error, rNodeToken) { SetText(OUString(MS_ERROR)); }
/**
* Prepare preliminary settings about font and text
* (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
* @param rFormat
* @param rDocShell
* @param nDepth
* @return
*/
virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
int nDepth) override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Table node
*
* This is the root node for the formula tree. This node is also used for the
* STACK and BINOM commands. When used for root node, its
* children are instances of SmLineNode, and in some obscure cases the child
* can be an instance of SmExpressionNode, mainly when errors occur.
*/
class SmTableNode final : public SmStructureNode
{
tools::Long mnFormulaBaseline;
public:
explicit SmTableNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::Table, rNodeToken)
, mnFormulaBaseline(0) { }
virtual const SmNode * GetLeftMost() const override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Gets the formula baseline.
* @return formula baseline
*/
tools::Long GetFormulaBaseline() const;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** A line
*
* Used as child of SmTableNode when the SmTableNode is the root node of the
* formula tree.
*/
class SmLineNode : public SmStructureNode
{
bool mbUseExtraSpaces;
protected:
SmLineNode(SmNodeType eNodeType, const SmToken &rNodeToken)
: SmStructureNode(eNodeType, rNodeToken)
, mbUseExtraSpaces(true) { }
public:
explicit SmLineNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::Line, rNodeToken)
, mbUseExtraSpaces(true) { }
/**
* Sets if it going to use extra spaces.
* It is used to set if there has to be space between node while rendering.
* By default it is true.
* @param bVal
* @return
*/
void SetUseExtraSpaces(bool bVal) { mbUseExtraSpaces = bVal; }
/**
* Checks if it is using extra spaces.
* It is used for calculating space between nodes when rendering.
* By default it is true.
* @return is using extra spaces
*/
bool IsUseExtraSpaces() const { return mbUseExtraSpaces; };
/**
* Prepare preliminary settings about font and text
* (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
* @param rFormat
* @param rDocShell
* @param nDepth
* @return
*/
virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
int nDepth) override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Expression node
*
* Used whenever you have an expression such as "A OVER {B + C}", here there is
* an expression node that allows "B + C" to be the denominator of the
* SmBinVerNode, that the OVER command creates.
*/
class SmExpressionNode final : public SmLineNode
{
public:
explicit SmExpressionNode(const SmToken &rNodeToken)
: SmLineNode(SmNodeType::Expression, rNodeToken) { }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Unary horizontal node
*
* The same as SmBinHorNode except this is for unary operators.
*/
class SmUnHorNode final : public SmStructureNode
{
public:
explicit SmUnHorNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::UnHor, rNodeToken, 2) { }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Root node
*
* Used for create square roots and other roots, example:
* \f$ \sqrt[\mbox{[Argument]}]{\mbox{[Body]}} \f$.
*
* Children:<BR>
* 0: Argument (optional)<BR>
* 1: Symbol (instance of SmRootSymbolNode)<BR>
* 2: Body<BR>
* Where argument is optional and may be NULL.
*/
class SmRootNode final : public SmStructureNode
{
public:
explicit SmRootNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::Root, rNodeToken, 3) { }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
/**
* Returns the node containing the data of the order of the root.
* @return order data
*/
const SmNode* Argument() const { return const_cast<SmRootNode *>(this)->Argument(); }
SmNode* Argument() { assert( GetNumSubNodes() == 3 ); return GetSubNode( 0 ); }
/**
* Returns the node containing the data of the character used for the root.
* @return symbol data
*/
const SmRootSymbolNode* Symbol() const { return const_cast<SmRootNode *>(this)->Symbol(); }
SmRootSymbolNode* Symbol() { assert( GetNumSubNodes() == 3 );
assert( GetSubNode( 1 )->GetType()
== SmNodeType::RootSymbol );
return static_cast< SmRootSymbolNode* >
( GetSubNode( 1 )); }
/**
* Returns the node containing the data inside the root.
* @return body data
*/
const SmNode* Body() const { return const_cast<SmRootNode *>(this)->Body(); }
SmNode* Body() { assert( GetNumSubNodes() == 3 ); return GetSubNode( 2 ); }
};
/** Binary horizontal node
*
* This node is used for binary operators. In a formula such as "A + B".
*
* Children:<BR>
* 0: Left operand<BR>
* 1: Binary operator<BR>
* 2: Right operand<BR>
*
* None of the children may be NULL.
*/
class SmBinHorNode final : public SmStructureNode
{
public:
explicit SmBinHorNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::BinHor, rNodeToken, 3) { }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
/**
* Returns the node containing the data of the binary operator.
* @return symbol data
*/
const SmNode* Symbol() const { return const_cast<SmBinHorNode *>(this)->Symbol(); }
SmNode* Symbol() { assert( GetNumSubNodes() == 3 ); return GetSubNode( 1 ); }
/**
* Returns the node containing the data of the left operand.
* @return left operand data
*/
const SmNode* LeftOperand() const { return const_cast<SmBinHorNode *>(this)->LeftOperand(); }
SmNode* LeftOperand() { assert( GetNumSubNodes() == 3 ); return GetSubNode( 0 ); }
/**
* Returns the node containing the data of the right operand.
* @return right operand data
*/
const SmNode* RightOperand() const { return const_cast<SmBinHorNode *>(this)->RightOperand(); }
SmNode* RightOperand() { assert( GetNumSubNodes() == 3 ); return GetSubNode( 2 ); }
};
/** Binary horizontal node
*
* This node is used for creating the OVER command, consider the formula:
* "numerator OVER denominator", which looks like
* \f$ \frac{\mbox{numerator}}{\mbox{denominator}} \f$
*
* Children:<BR>
* 0: Numerator<BR>
* 1: Line (instance of SmRectangleNode)<BR>
* 2: Denominator<BR>
* None of the children may be NULL.
*/
class SmBinVerNode final : public SmStructureNode
{
public:
explicit SmBinVerNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::BinVer, rNodeToken, 3) { }
virtual const SmNode * GetLeftMost() const override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Binary diagonal node
*
* Used for implementing the WIDESLASH command, example: "A WIDESLASH B".
*
* Children:<BR>
* 0: Left operand<BR>
* 1: right operand<BR>
* 2: Line (instance of SmPolyLineNode).<BR>
* None of the children may be NULL.
*/
class SmBinDiagonalNode final : public SmStructureNode
{
bool mbAscending;
/**
* Returns the position and size of the diagonal line by reference.
* @param rPos
* @param rSize
* @param rDiagPoint
* @param fAngleDeg
* @return position and size of the diagonal line
*/
void GetOperPosSize(Point &rPos, Size &rSize, const Point &rDiagPoint, double fAngleDeg) const;
public:
explicit SmBinDiagonalNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::BinDiagonal, rNodeToken, 3)
, mbAscending(false) { }
/**
* Checks if it is of ascending type.
* Ascending:
* / b
* /
* a /
* Descending:
* a \
* \
* \ b
* @return ascending.
*/
bool IsAscending() const { return mbAscending; }
/**
* Sets if the wideslash is ascending to bVal.
* @param bVal
* @return
*/
void SetAscending(bool bVal) { mbAscending = bVal; }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Enum used to index sub-/supscripts in the 'maSubNodes' array
* in 'SmSubSupNode'
*
* See graphic for positions at char:
*
* \code
* CSUP
*
* LSUP H H RSUP
* H H
* HHHH
* H H
* LSUB H H RSUB
*
* CSUB
* \endcode
*/
enum SmSubSup
{ CSUB, CSUP, RSUB, RSUP, LSUB, LSUP
};
/** numbers of entries in the above enum (that is: the number of possible
* sub-/supscripts)
*/
#define SUBSUP_NUM_ENTRIES 6
/** Super- and subscript node
*
* Used for creating super- and subscripts for commands such as:
* "^", "_", "lsup", "lsub", "csup" and "csub".
* Example: "A^2" which looks like: \f$ A^2 \f$
*
* This node is also used for creating limits on SmOperNode, when
* "FROM" and "TO" commands are used with "INT", "SUM" or similar.
*
* Children of this node can be enumerated using the SmSubSup enum.
* Please note that children may be NULL, except for the body.
* It is recommended that you access children using GetBody() and
* GetSubSup().
*/
class SmSubSupNode final : public SmStructureNode
{
bool mbUseLimits;
public:
explicit SmSubSupNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::SubSup, rNodeToken, 1 + SUBSUP_NUM_ENTRIES)
, mbUseLimits(false) { }
/**
* Returns the node with the data of what has to be superindex or subindex.
* @return body data
*/
const SmNode * GetBody() const { return const_cast<SmSubSupNode *>(this)->GetBody(); }
SmNode * GetBody() { return GetSubNode(0); }
/**
* Checks if it is going to be used for a limit.
* Example lim from { x toward 0 } { {sin x}over x } = 1
* @return is a limit
*/
bool IsUseLimits() const { return mbUseLimits; };
/**
* Sets if it is going to be used for a limit to bVal.
* @param bVal
* @return
*/
void SetUseLimits(bool bVal) { mbUseLimits = bVal; }
/**
* Gets the node with the data of what has to be superindex or subindex.
* The position to check is given by eSubSup.
* @remarks this method may return NULL.
* @param eSubSup
* @return body data
*/
const SmNode * GetSubSup(SmSubSup eSubSup) const { return const_cast< SmSubSupNode* >
( this )->GetSubSup( eSubSup ); }
SmNode * GetSubSup(SmSubSup eSubSup) { return GetSubNode(1 + eSubSup); };
/**
* Sets the node with the data of what has to be superindex or subindex.
* @param pScript
*/
void SetBody(SmNode* pBody) { SetSubNode(0, pBody); }
/**
* Sets the node with the data of what has to be superindex or subindex.
* The position to check is given by eSubSup.
* @param eSubSup
* @param pScript
*/
void SetSubSup(SmSubSup eSubSup, SmNode* pScript) { SetSubNode( 1 + eSubSup, pScript); }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Node for brace construction
*
* Used for "lbrace [body] rbrace" and similar constructions.
* Should look like \f$ \{\mbox{[body]}\} \f$
*
* Children:<BR>
* 0: Opening brace<BR>
* 1: Body (usually SmBracebodyNode)<BR>
* 2: Closing brace<BR>
* None of the children can be NULL.
*
* Note that child 1 (Body) is usually SmBracebodyNode, but it can also be e.g. SmExpressionNode.
*/
class SmBraceNode final : public SmStructureNode
{
public:
explicit SmBraceNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::Brace, rNodeToken, 3) { }
/**
* Returns the node containing the data of the opening brace.
* @return opening brace data
*/
const SmMathSymbolNode* OpeningBrace() const { return const_cast<SmBraceNode *>
(this)->OpeningBrace(); }
SmMathSymbolNode* OpeningBrace() { assert( GetNumSubNodes() == 3 );
assert( GetSubNode( 0 )->GetType()
== SmNodeType::Math );
return static_cast< SmMathSymbolNode* >
( GetSubNode( 0 )); }
/**
* Returns the node containing the data of what is between braces.
* @return body data
*/
const SmNode* Body() const { return const_cast<SmBraceNode *>(this)->Body(); }
SmNode* Body() { assert( GetNumSubNodes() == 3 ); return GetSubNode( 1 ); }
/**
* Returns the node containing the data of the closing brace.
* @return closing brace data
*/
const SmMathSymbolNode* ClosingBrace() const { return const_cast<SmBraceNode *>
(this)->ClosingBrace(); }
SmMathSymbolNode* ClosingBrace() { assert( GetNumSubNodes() == 3 );
assert( GetSubNode( 2 )->GetType()
== SmNodeType::Math );
return static_cast< SmMathSymbolNode* >
( GetSubNode( 2 )); }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Body of an SmBraceNode
*
* This usually only has one child an SmExpressionNode, however, it can also
* have other children.
* Consider the formula "lbrace [body1] mline [body2] rbrace", looks like:
* \f$ \{\mbox{[body1] | [body2]}\} \f$.
* In this case SmBracebodyNode will have three children, "[body1]", "|" and
* [body2].
*/
class SmBracebodyNode final : public SmStructureNode
{
tools::Long mnBodyHeight;
public:
explicit SmBracebodyNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::Bracebody, rNodeToken)
, mnBodyHeight(0) { }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
tools::Long GetBodyHeight() const { return mnBodyHeight; }
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Node for vertical brace construction
*
* Used to implement commands "[body] underbrace [script]" and
* "[body] overbrace [script]".
* Underbrace should look like this \f$ \underbrace{\mbox{body}}_{\mbox{script}}\f$.
*
* Children:<BR>
* 0: body<BR>
* 1: brace<BR>
* 2: script<BR>
* (None of these children are optional, e.g. they must all be not NULL).
*/
class SmVerticalBraceNode final : public SmStructureNode
{
public:
explicit SmVerticalBraceNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::VerticalBrace, rNodeToken, 3) { }
/**
* Returns the node containing the data of what the brace is pointing for.
* body { script }
* @return body data
*/
const SmNode* Body() const { return const_cast<SmVerticalBraceNode *>(this)->Body(); }
SmNode* Body() { assert( GetNumSubNodes() == 3 ); return GetSubNode( 0 ); }
/**
* Returns the node containing the data of the brace.
* @return brace data
*/
const SmMathSymbolNode* Brace() const { return const_cast<SmVerticalBraceNode *>
(this)->Brace(); }
SmMathSymbolNode* Brace() { assert( GetNumSubNodes() == 3 );
assert( GetSubNode( 1 )->GetType()
== SmNodeType::Math );
return static_cast< SmMathSymbolNode* >
( GetSubNode( 1 )); }
/**
* Returns the node containing the data of what is in the brace.
* body { script }
* @return opening brace data
*/
const SmNode* Script() const { return const_cast<SmVerticalBraceNode *>(this)->Script(); }
SmNode* Script() { assert( GetNumSubNodes() == 3 ); return GetSubNode( 2 ); }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Operation Node
*
* Used for commands like SUM, INT and similar.
*
* Children:<BR>
* 0: Operation (instance of SmMathSymbolNode or SmSubSupNode)<BR>
* 1: Body<BR>
* None of the children may be NULL.
*
*/
class SmOperNode final : public SmStructureNode
{
public:
explicit SmOperNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::Oper, rNodeToken, 2) { }
/**
* Returns the node with the operator data
* @return operator data
*/
const SmNode * GetSymbol() const { return const_cast<SmOperNode *>(this)->GetSymbol(); }
SmNode * GetSymbol();
/**
* Returns the height of the node in base to the symbol
* ( rSymbol contains the operator data )
* and the font format ( rFormat ).
* @param rSymbol
* @param rFormat
* @return node's height
*/
tools::Long CalcSymbolHeight(const SmNode &rSymbol, const SmFormat &rFormat) const;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Node used for alignment
*
* This node has exactly one child at index 0.
*/
class SmAlignNode final : public SmStructureNode
{
public:
explicit SmAlignNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::Align, rNodeToken) { }
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Attribute node
*
* Used to give an attribute to another node. Used for commands such as:
* UNDERLINE, OVERLINE, OVERSTRIKE, WIDEVEC, WIDEHARPOON, WIDEHAT and WIDETILDE.
*
* Children:<BR>
* 0: Attribute<BR>
* 1: Body<BR>
* None of these may be NULL.
*/
class SmAttributeNode final : public SmStructureNode
{
public:
explicit SmAttributeNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::Attribute, rNodeToken, 2) {}
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
/**
* Gets the attribute data.
* @return attribute data
*/
const SmNode* Attribute() const { return const_cast<SmAttributeNode *>(this)->Attribute(); }
SmNode* Attribute() { assert( GetNumSubNodes() == 2 ); return GetSubNode( 0 ); }
/**
* Gets the body data ( the nodes affected by the attribute ).
* @return body data
*/
const SmNode* Body() const { return const_cast<SmAttributeNode *>(this)->Body(); }
SmNode* Body() { assert( GetNumSubNodes() == 2 ); return GetSubNode( 1 ); }
};
/** Font node
*
* Used to change the font of its children.
*/
class SmFontNode final : public SmStructureNode
{
FontSizeType meSizeType;
Fraction maFontSize;
public:
explicit SmFontNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::Font, rNodeToken)
, meSizeType(FontSizeType::MULTIPLY)
, maFontSize(1) { }
/**
* Sets font size to rValue in nType mode.
* Check FontSizeType for details.
* @param rValue
* @param nType
* @return
*/
void SetSizeParameter(const Fraction &rValue, FontSizeType nType)
{ meSizeType = nType; maFontSize = rValue; }
/**
* Returns the font size.
* @return font size.
*/
const Fraction & GetSizeParameter() const {return maFontSize;}
/**
* Returns the font size type.
* Check FontSizeType for details.
* @return font size type.
*/
FontSizeType GetSizeType() const {return meSizeType;}
/**
* Prepare preliminary settings about font and text
* (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
* @param rFormat
* @param rDocShell
* @param nDepth
* @return
*/
virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
int nDepth) override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Matrix node
*
* Used to implement the MATRIX command, example:
* "matrix{ 1 # 2 ## 3 # 4}".
*/
class SmMatrixNode final : public SmStructureNode
{
sal_uInt16 mnNumRows,
mnNumCols;
public:
explicit SmMatrixNode(const SmToken &rNodeToken)
: SmStructureNode(SmNodeType::Matrix, rNodeToken)
, mnNumRows(0)
, mnNumCols(0) { }
/**
* Gets the number of rows of the matrix.
* @return rows number
*/
sal_uInt16 GetNumRows() const {return mnNumRows;}
/**
* Gets the number of columns of the matrix.
* @return columns number
*/
sal_uInt16 GetNumCols() const {return mnNumCols;}
/**
* Sets the dimensions of the matrix.
* @param nMatrixRows
* @param nMatrixCols
* @return
*/
void SetRowCol(sal_uInt16 nMatrixRows, sal_uInt16 nMatrixCols)
{ mnNumRows = nMatrixRows; mnNumCols = nMatrixCols; }
virtual const SmNode * GetLeftMost() const override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/** Node for whitespace
*
* Used to implement the commands "~" and "`". This node is just a blank space.
*/
class SmBlankNode final : public SmGraphicNode
{
sal_uInt16 mnNum;
public:
explicit SmBlankNode(const SmToken &rNodeToken)
: SmGraphicNode(SmNodeType::Blank, rNodeToken)
, mnNum(0) { }
void IncreaseBy(const SmToken &rToken, sal_uInt32 nMultiplyBy = 1);
void Clear() { mnNum = 0; }
sal_uInt16 GetBlankNum() const { return mnNum; }
void SetBlankNum(sal_uInt16 nNumber) { mnNum = nNumber; }
/**
* Prepare preliminary settings about font and text
* (e.g. maFace, meRectHorAlign, mnFlags, mnAttributes, etc.)
* @param rFormat
* @param rDocShell
* @param nDepth
* @return
*/
virtual void Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell,
int nDepth) override;
/**
* Prepares the SmRect to render.
* @param rDev
* @param rFormat
* @return
*/
virtual void Arrange(OutputDevice &rDev, const SmFormat &rFormat) override;
/**
* Accept a visitor.
* Calls the method for this class on the visitor.
* @param pVisitor
* @return
*/
void Accept(SmVisitor* pVisitor) override;
};
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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