Added old abandoned KDE3 version of koffice

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/koffice@1077364 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 464 insertions, 0 deletions

diff --git a/lib/kformula/matrixelement.h b/lib/kformula/matrixelement.h
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+++ b/lib/kformula/matrixelement.h
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+/* 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 <qptrlist.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* parent = 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& parentOrigin );
+
+    // 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 children's parentPosition.
+     */
+    virtual void calcSizes( const ContextStyle& cstyle,
+						    ContextStyle::TextStyle tstyle,
+						    ContextStyle::IndexStyle istyle,
+							StyleAttributes& style );
+
+    /**
+     * Draws the whole element including its children.
+     * The `parentOrigin' is the point this element's parent starts.
+     * We can use our parentPosition to get our own origin then.
+     */
+    virtual void draw( QPainter& painter, const LuPixelRect& r,
+                       const ContextStyle& context,
+                       ContextStyle::TextStyle tstyle,
+                       ContextStyle::IndexStyle istyle,
+					   StyleAttributes& style,
+                       const LuPixelPoint& parentOrigin );
+
+    /**
+     * Dispatch this FontCommand to all our TextElement children.
+     */
+    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 children at the cursor position. Places the
+     * cursor according to the direction.
+     */
+    //virtual void insert(FormulaCursor*, QPtrList<BasicElement>&, Direction);
+
+    /**
+     * Removes all selected children and returns them. Places the
+     * cursor to where the children have been.
+     */
+    //virtual void remove(FormulaCursor*, QPtrList<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
+     * children (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 children
+     */
+    virtual QString toLatex();
+
+    virtual QString 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 QString getTagName() const { return "MATRIX"; }
+
+    /**
+     * Appends our attributes to the dom element.
+     */
+    virtual void writeDom(QDomElement element);
+
+    virtual QString getElementName() const { return "mtable"; }
+    virtual void writeMathMLAttributes( QDomElement& element ) const;
+    virtual void writeMathMLContent( QDomDocument& doc, 
+                                     QDomElement& element,
+                                     bool oasisFormat ) const;
+    /**
+     * Reads our attributes from the element.
+     * Returns false if it failed.
+     */
+    virtual bool readAttributesFromDom(QDomElement 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(QDomNode& node);
+
+    virtual bool readAttributesFromMathMLDom( const QDomElement& 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(QDomNode& node);
+
+private:
+    void writeMathMLAttributes( QDomElement& 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.
+     */
+    QPtrList< QPtrList< MatrixSequenceElement > > content;
+
+    /**
+     * MathML Attributes. See Section 3.5.1.2
+     */
+    int m_rowNumber;
+    VerticalAlign m_align;
+    QValueList< VerticalAlign > m_rowAlign;
+    QValueList< HorizontalAlign > m_columnAlign;
+    QValueList< bool > m_alignmentScope;
+    QValueList< SizeType > m_columnWidthType;
+    QValueList< double > m_columnWidth;
+    SizeType m_widthType;
+    double m_width;
+    QValueList< SizeType > m_rowSpacingType;
+    QValueList< double > m_rowSpacing;
+    QValueList< SizeType > m_columnSpacingType;
+    QValueList< double > m_columnSpacing;
+    QValueList< LineType > m_rowLines;
+    QValueList< 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* parent = 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& parentOrigin );
+
+    /**
+     * 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 children's parentPosition.
+     */
+    virtual void calcSizes( const ContextStyle& cstyle,
+						    ContextStyle::TextStyle tstyle,
+						    ContextStyle::IndexStyle istyle,
+							StyleAttributes& style );
+
+    /**
+     * Draws the whole element including its children.
+     * The `parentOrigin' is the point this element's parent starts.
+     * We can use our parentPosition to get our own origin then.
+     */
+    virtual void draw( QPainter& painter, const LuPixelRect& r,
+                       const ContextStyle& context,
+                       ContextStyle::TextStyle tstyle,
+                       ContextStyle::IndexStyle istyle,
+					   StyleAttributes& style,
+                       const LuPixelPoint& parentOrigin );
+
+    /**
+     * Dispatch this FontCommand to all our TextElement children.
+     */
+    virtual void dispatchFontCommand( FontCommand* cmd );
+
+    virtual void insert(FormulaCursor*, QPtrList<BasicElement>&, Direction);
+    virtual void remove(FormulaCursor*, QPtrList<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 children
+     */
+    virtual QString toLatex();
+
+    virtual QString formulaString();
+
+    virtual void writeMathML( QDomDocument& doc, QDomNode& parent, bool oasisFormat = false ) const ;
+
+protected:
+
+    //Save/load support
+
+    /**
+     * Returns the tag name of this element type.
+     */
+    virtual QString getTagName() const { return "MULTILINE"; }
+
+    /**
+     * Appends our attributes to the dom element.
+     */
+    virtual void writeDom(QDomElement element);
+
+    /**
+     * Reads our attributes from the element.
+     * Returns false if it failed.
+     */
+    virtual bool readAttributesFromDom(QDomElement 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(QDomNode& node);
+
+
+private:
+
+    /**
+     * The list of sequences. Each one is a line.
+     */
+    QPtrList< MultilineSequenceElement > content;
+};
+
+
+KFORMULA_NAMESPACE_END
+
+#endif // MATRIXELEMENT_H