Warning, /office/calligra/plugins/formulashape/Mainpage.dox is written in an unsupported language. File is not indexed.

 /**
  * \mainpage KoFormulaShape
  *
  * KoFormulaShape is a flake shape ( derived from KoShape ) that implements the
  * functionality to edit and show a mathematical formula. Its structure is highly
  * related to the MathML markup language which is the ODF standard format for
  * formula markup. At the moment the KoFormulaShape implements only parts of the
  * MathML presentation markup, content markup is not supported.
  *
  * Every formula is stored as a tree of element objects that more or less are
  * equivalent to the XML structure of the MathML they were loaded from.
  * The element objects are classes that derive all from the BasicElement class.
  * They all implement a special interface which is used to alter and navigate
  * through them.
  *
  * The element tree's highest element is an object of the class FormulaElement.
  * This object is a private member of the FormulaShape class which implements the
  * public interface of a flake shape.
  * The according flake tool is implemented in FormulaTool and contains an instance
  * of FormulaEditor which is used for navigating and modifying the formula.
  * A FormulaEditor holds a FormulaCursor that represents a position or selection in
  * the formula, it consists of a start position, simply called position and (if selecting)
  * an end position of the selection, called mark. It can be modified in various ways.
  * The FormulaEditor provides methods for modifying the formula according to current 
  * cursor. These methods return a QUndoCommand, that is wrapped in a FormulaUpdateCommand
  * (this has to be done to allow the notification of the shape/tool of data changes while
  * keeping a sepearation between the kformulalib part and the flake part) and than pushed
  * on the documents undo stack.
  *
  * The complex system of attributes which can be hold by the single elements is
  * completely implemented in the AttributeManager class. The attributes are
  * generically loaded and stored inside the elements and obtain and parse their
  * values the elements use AttributeManager which also deals with heritage and
  * default values.
  *
  * MathML specifies a scaling mechanism that uses the scriptlevel attribute. This
  * mechanism is implemented in BasicElement using the m_scalingFactor. This is the
  * factor the element is scaled in relation to its parent element. The value is
  * determined in during layouting in FormulaRenderer class.
  *
  * There are a number of elements that do not inherit BasicElement directly but
  * instead through RowElement. These classes are referred to as the inferred
  * row elements - see MathML spec 3.1.3.1. 
  *
  * Most other elements, especially those with a fixed number of childs, but also
  * multiscript elements, inherit from FixedElement, which provides some convinience
  * methods and default implementations to them.
  *
  * The MathML specification lists default values for operator's layouting. These
  * values are different for every element class so each of them implements a
  * defaultAttributeValue() method that returns the hardcoded default value of the
  * passed attribute.
  *
  * The FormulaCursor class contains a current element, where the cursor is in.
  * Each element provides a certain number of cursor positions, for example
  * a token element has a cursor position before each letter and one at the end.
  * The position and mark (as mentioned above) are in respect to the cursor positions
  * of the current element. Each element implements a moveCursor method that is called
  * with the cursor position before the move (oldCursor) and the (maybe already modified)
  * new cursor position that the element changes according to it's direction. Additionally
  * each element implements a acceptCursor method, where it can specify if it accepts
  * this cursor (also according to it's position and selection state) or if the cursor
  * should be moved further.
  *
  */
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