You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
465 lines
14 KiB
465 lines
14 KiB
/* This file is part of the KDE project
|
|
Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
|
|
Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>
|
|
Copyright (C) 2006 Alfredo Beaumont Sainz <alfredo.beaumont@gmail.com>
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public License
|
|
along with this library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef MATRIXELEMENT_H
|
|
#define MATRIXELEMENT_H
|
|
|
|
#include <tqptrlist.h>
|
|
|
|
#include "basicelement.h"
|
|
|
|
KFORMULA_NAMESPACE_BEGIN
|
|
|
|
|
|
class MatrixSequenceElement;
|
|
|
|
|
|
/**
|
|
* A matrix.
|
|
*/
|
|
class MatrixElement : public BasicElement {
|
|
friend class KFCRemoveColumn;
|
|
friend class KFCRemoveRow;
|
|
friend class MatrixSequenceElement;
|
|
|
|
enum VerticalAlign { NoAlign, TopAlign, BottomAlign, CenterAlign, BaselineAlign, AxisAlign };
|
|
enum LineType { NoLine, NoneLine, SolidLine, DashedLine };
|
|
enum SideType { NoSide, LeftSide, RightSide, LeftOverlapSide, RightOverlapSide };
|
|
MatrixElement& operator=( const MatrixElement& ) { return *this; }
|
|
public:
|
|
MatrixElement(uint rows = 1, uint columns = 1, BasicElement* tqparent = 0);
|
|
~MatrixElement();
|
|
|
|
MatrixElement( const MatrixElement& );
|
|
|
|
virtual MatrixElement* clone() {
|
|
return new MatrixElement( *this );
|
|
}
|
|
|
|
virtual bool accept( ElementVisitor* visitor );
|
|
|
|
/**
|
|
* The cursor has entered one of our child sequences.
|
|
* This is a good point to tell the user where he is.
|
|
*/
|
|
virtual void entered( SequenceElement* child );
|
|
|
|
/**
|
|
* Sets the cursor and returns the element the point is in.
|
|
* The handled flag shows whether the cursor has been set.
|
|
* This is needed because only the innermost matching element
|
|
* is allowed to set the cursor.
|
|
*/
|
|
virtual BasicElement* goToPos( FormulaCursor*, bool& handled,
|
|
const LuPixelPoint& point, const LuPixelPoint& tqparentOrigin );
|
|
|
|
// drawing
|
|
//
|
|
// Drawing depends on a context which knows the required properties like
|
|
// fonts, spaces and such.
|
|
// It is essential to calculate elements size with the same context
|
|
// before you draw.
|
|
|
|
/**
|
|
* Calculates our width and height and
|
|
* our tqchildren's tqparentPosition.
|
|
*/
|
|
virtual void calcSizes( const ContextStyle& cstyle,
|
|
ContextStyle::TextStyle tstyle,
|
|
ContextStyle::IndexStyle istyle,
|
|
StyleAttributes& style );
|
|
|
|
/**
|
|
* Draws the whole element including its tqchildren.
|
|
* The `tqparentOrigin' is the point this element's tqparent starts.
|
|
* We can use our tqparentPosition to get our own origin then.
|
|
*/
|
|
virtual void draw( TQPainter& painter, const LuPixelRect& r,
|
|
const ContextStyle& context,
|
|
ContextStyle::TextStyle tstyle,
|
|
ContextStyle::IndexStyle istyle,
|
|
StyleAttributes& style,
|
|
const LuPixelPoint& tqparentOrigin );
|
|
|
|
/**
|
|
* Dispatch this FontCommand to all our TextElement tqchildren.
|
|
*/
|
|
virtual void dispatchFontCommand( FontCommand* cmd );
|
|
|
|
// navigation
|
|
//
|
|
// The elements are responsible to handle cursor movement themselves.
|
|
// To do this they need to know the direction the cursor moves and
|
|
// the element it comes from.
|
|
//
|
|
// The cursor might be in normal or in selection mode.
|
|
|
|
/**
|
|
* Enters this element while moving to the left starting inside
|
|
* the element `from'. Searches for a cursor position inside
|
|
* this element or to the left of it.
|
|
*/
|
|
virtual void moveLeft(FormulaCursor* cursor, BasicElement* from);
|
|
|
|
/**
|
|
* Enters this element while moving to the right starting inside
|
|
* the element `from'. Searches for a cursor position inside
|
|
* this element or to the right of it.
|
|
*/
|
|
virtual void moveRight(FormulaCursor* cursor, BasicElement* from);
|
|
|
|
/**
|
|
* Enters this element while moving up starting inside
|
|
* the element `from'. Searches for a cursor position inside
|
|
* this element or above it.
|
|
*/
|
|
virtual void moveUp(FormulaCursor*, BasicElement*);
|
|
|
|
/**
|
|
* Enters this element while moving down starting inside
|
|
* the element `from'. Searches for a cursor position inside
|
|
* this element or below it.
|
|
*/
|
|
virtual void moveDown(FormulaCursor*, BasicElement*);
|
|
|
|
/**
|
|
* Sets the cursor inside this element to its start position.
|
|
* For most elements that is the main child.
|
|
*/
|
|
virtual void goInside(FormulaCursor* cursor);
|
|
|
|
/**
|
|
* We define the Main Child of a matrix to be the first row/column.
|
|
**/
|
|
// If there is a main child we must provide the insert/remove semantics.
|
|
virtual SequenceElement* getMainChild();
|
|
|
|
/**
|
|
* Inserts all new tqchildren at the cursor position. Places the
|
|
* cursor according to the direction.
|
|
*/
|
|
//virtual void insert(FormulaCursor*, TQPtrList<BasicElement>&, Direction);
|
|
|
|
/**
|
|
* Removes all selected tqchildren and returns them. Places the
|
|
* cursor to where the tqchildren have been.
|
|
*/
|
|
//virtual void remove(FormulaCursor*, TQPtrList<BasicElement>&, Direction);
|
|
|
|
/**
|
|
* Moves the cursor to a normal place where new elements
|
|
* might be inserted.
|
|
*/
|
|
//virtual void normalize(FormulaCursor*, Direction);
|
|
|
|
/**
|
|
* Sets the cursor to select the child. The mark is placed before,
|
|
* the position behind it.
|
|
*/
|
|
virtual void selectChild(FormulaCursor*, BasicElement*);
|
|
|
|
/**
|
|
* Moves the cursor away from the given child. The cursor is
|
|
* guaranteed to be inside this element.
|
|
*/
|
|
//virtual void childWillVanish(FormulaCursor* cursor, BasicElement* child) = 0;
|
|
|
|
/**
|
|
* Returns wether the element has no more useful
|
|
* tqchildren (except its main child) and should therefore
|
|
* be replaced by its main child's content.
|
|
*/
|
|
//virtual bool isSenseless();
|
|
|
|
/**
|
|
* @returns the latex representation of the element and
|
|
* of the element's tqchildren
|
|
*/
|
|
virtual TQString toLatex();
|
|
|
|
virtual TQString formulaString();
|
|
|
|
uint getRows() const { return content.count(); }
|
|
uint getColumns() const { return content.getFirst()->count(); }
|
|
|
|
SequenceElement* elementAt(uint row, uint column);
|
|
|
|
protected:
|
|
|
|
//Save/load support
|
|
|
|
/**
|
|
* Returns the tag name of this element type.
|
|
*/
|
|
virtual TQString getTagName() const { return "MATRIX"; }
|
|
|
|
/**
|
|
* Appends our attributes to the dom element.
|
|
*/
|
|
virtual void writeDom(TQDomElement element);
|
|
|
|
virtual TQString getElementName() const { return "mtable"; }
|
|
virtual void writeMathMLAttributes( TQDomElement& element ) const;
|
|
virtual void writeMathMLContent( TQDomDocument& doc,
|
|
TQDomElement& element,
|
|
bool oasisFormat ) const;
|
|
/**
|
|
* Reads our attributes from the element.
|
|
* Returns false if it failed.
|
|
*/
|
|
virtual bool readAttributesFromDom(TQDomElement element);
|
|
|
|
/**
|
|
* Reads our content from the node. Sets the node to the next node
|
|
* that needs to be read.
|
|
* Returns false if it failed.
|
|
*/
|
|
virtual bool readContentFromDom(TQDomNode& node);
|
|
|
|
virtual bool readAttributesFromMathMLDom( const TQDomElement& element );
|
|
|
|
/**
|
|
* Reads our content from the MathML node. Sets the node to the next node
|
|
* that needs to be read. It is sometimes needed to read more than one node
|
|
* (e. g. for fence operators).
|
|
* Returns the number of nodes processed or -1 if it failed.
|
|
*/
|
|
virtual int readContentFromMathMLDom(TQDomNode& node);
|
|
|
|
private:
|
|
void writeMathMLAttributes( TQDomElement& element );
|
|
|
|
MatrixSequenceElement* getElement(uint row, uint column)
|
|
{ return content.at(row)->at(column); }
|
|
|
|
const MatrixSequenceElement* getElement( uint row, uint column ) const;
|
|
|
|
/**
|
|
* Searches through the matrix for the element. Sets the
|
|
* row and column if found.
|
|
* Returns true if the element was found. false otherwise.
|
|
*/
|
|
bool searchElement(BasicElement* element, uint& row, uint& column);
|
|
|
|
/**
|
|
* The elements we contain.
|
|
*/
|
|
TQPtrList< TQPtrList< MatrixSequenceElement > > content;
|
|
|
|
/**
|
|
* MathML Attributes. See Section 3.5.1.2
|
|
*/
|
|
int m_rowNumber;
|
|
VerticalAlign m_align;
|
|
TQValueList< VerticalAlign > m_rowAlign;
|
|
TQValueList< HorizontalAlign > m_columnAlign;
|
|
TQValueList< bool > m_tqalignmentScope;
|
|
TQValueList< SizeType > m_columnWidthType;
|
|
TQValueList< double > m_columnWidth;
|
|
SizeType m_widthType;
|
|
double m_width;
|
|
TQValueList< SizeType > m_rowSpacingType;
|
|
TQValueList< double > m_rowSpacing;
|
|
TQValueList< SizeType > m_columnSpacingType;
|
|
TQValueList< double > m_columnSpacing;
|
|
TQValueList< LineType > m_rowLines;
|
|
TQValueList< LineType > m_columnLines;
|
|
LineType m_frame;
|
|
SizeType m_frameHSpacingType;
|
|
double m_frameHSpacing;
|
|
SizeType m_frameVSpacingType;
|
|
double m_frameVSpacing;
|
|
SideType m_side;
|
|
SizeType m_minLabelSpacingType;
|
|
double m_minLabelSpacing;
|
|
bool m_equalRows;
|
|
bool m_customEqualRows;
|
|
bool m_equalColumns;
|
|
bool m_customEqualColumns;
|
|
bool m_displayStyle;
|
|
bool m_customDisplayStyle;
|
|
};
|
|
|
|
|
|
|
|
class MultilineSequenceElement;
|
|
|
|
|
|
/**
|
|
* Any number of lines.
|
|
*/
|
|
class MultilineElement : public BasicElement {
|
|
friend class KFCNewLine;
|
|
|
|
typedef BasicElement inherited;
|
|
public:
|
|
|
|
/**
|
|
* The container this FormulaElement belongs to must not be 0,
|
|
* except you really know what you are doing.
|
|
*/
|
|
MultilineElement( BasicElement* tqparent = 0 );
|
|
~MultilineElement();
|
|
|
|
MultilineElement( const MultilineElement& );
|
|
|
|
virtual MultilineElement* clone() {
|
|
return new MultilineElement( *this );
|
|
}
|
|
|
|
virtual bool accept( ElementVisitor* visitor );
|
|
|
|
/**
|
|
* The cursor has entered one of our child sequences.
|
|
* This is a good point to tell the user where he is.
|
|
*/
|
|
virtual void entered( SequenceElement* child );
|
|
|
|
/**
|
|
* Returns the element the point is in.
|
|
*/
|
|
BasicElement* goToPos( FormulaCursor* cursor, bool& handled,
|
|
const LuPixelPoint& point, const LuPixelPoint& tqparentOrigin );
|
|
|
|
/**
|
|
* Sets the cursor inside this element to its start position.
|
|
* For most elements that is the main child.
|
|
*/
|
|
virtual void goInside(FormulaCursor* cursor);
|
|
|
|
/**
|
|
* Enters this element while moving to the left starting inside
|
|
* the element `from'. Searches for a cursor position inside
|
|
* this element or to the left of it.
|
|
*/
|
|
virtual void moveLeft( FormulaCursor* cursor, BasicElement* from );
|
|
|
|
/**
|
|
* Enters this element while moving to the right starting inside
|
|
* the element `from'. Searches for a cursor position inside
|
|
* this element or to the right of it.
|
|
*/
|
|
virtual void moveRight( FormulaCursor* cursor, BasicElement* from );
|
|
|
|
/**
|
|
* Enters this element while moving up starting inside
|
|
* the element `from'. Searches for a cursor position inside
|
|
* this element or above it.
|
|
*/
|
|
virtual void moveUp( FormulaCursor* cursor, BasicElement* from );
|
|
|
|
/**
|
|
* Enters this element while moving down starting inside
|
|
* the element `from'. Searches for a cursor position inside
|
|
* this element or below it.
|
|
*/
|
|
virtual void moveDown( FormulaCursor* cursor, BasicElement* from );
|
|
|
|
/**
|
|
* Calculates our width and height and
|
|
* our tqchildren's tqparentPosition.
|
|
*/
|
|
virtual void calcSizes( const ContextStyle& cstyle,
|
|
ContextStyle::TextStyle tstyle,
|
|
ContextStyle::IndexStyle istyle,
|
|
StyleAttributes& style );
|
|
|
|
/**
|
|
* Draws the whole element including its tqchildren.
|
|
* The `tqparentOrigin' is the point this element's tqparent starts.
|
|
* We can use our tqparentPosition to get our own origin then.
|
|
*/
|
|
virtual void draw( TQPainter& painter, const LuPixelRect& r,
|
|
const ContextStyle& context,
|
|
ContextStyle::TextStyle tstyle,
|
|
ContextStyle::IndexStyle istyle,
|
|
StyleAttributes& style,
|
|
const LuPixelPoint& tqparentOrigin );
|
|
|
|
/**
|
|
* Dispatch this FontCommand to all our TextElement tqchildren.
|
|
*/
|
|
virtual void dispatchFontCommand( FontCommand* cmd );
|
|
|
|
virtual void insert(FormulaCursor*, TQPtrList<BasicElement>&, Direction);
|
|
virtual void remove(FormulaCursor*, TQPtrList<BasicElement>&, Direction);
|
|
|
|
virtual void normalize(FormulaCursor*, Direction);
|
|
|
|
virtual SequenceElement* getMainChild();
|
|
|
|
/**
|
|
* Sets the cursor to select the child. The mark is placed before,
|
|
* the position behind it.
|
|
*/
|
|
virtual void selectChild(FormulaCursor* cursor, BasicElement* child);
|
|
|
|
/**
|
|
* @returns the latex representation of the element and
|
|
* of the element's tqchildren
|
|
*/
|
|
virtual TQString toLatex();
|
|
|
|
virtual TQString formulaString();
|
|
|
|
virtual void writeMathML( TQDomDocument& doc, TQDomNode& tqparent, bool oasisFormat = false ) const ;
|
|
|
|
protected:
|
|
|
|
//Save/load support
|
|
|
|
/**
|
|
* Returns the tag name of this element type.
|
|
*/
|
|
virtual TQString getTagName() const { return "MULTILINE"; }
|
|
|
|
/**
|
|
* Appends our attributes to the dom element.
|
|
*/
|
|
virtual void writeDom(TQDomElement element);
|
|
|
|
/**
|
|
* Reads our attributes from the element.
|
|
* Returns false if it failed.
|
|
*/
|
|
virtual bool readAttributesFromDom(TQDomElement element);
|
|
|
|
/**
|
|
* Reads our content from the node. Sets the node to the next node
|
|
* that needs to be read.
|
|
* Returns false if it failed.
|
|
*/
|
|
virtual bool readContentFromDom(TQDomNode& node);
|
|
|
|
|
|
private:
|
|
|
|
/**
|
|
* The list of sequences. Each one is a line.
|
|
*/
|
|
TQPtrList< MultilineSequenceElement > content;
|
|
};
|
|
|
|
|
|
KFORMULA_NAMESPACE_END
|
|
|
|
#endif // MATRIXELEMENT_H
|