#pragma interface
#endif
-#include "xarray.h"
+#include "math_xdata.h"
+#include "math_defs.h"
+
+/**
+
+Abstract base class for all math objects. A math insets is for use of the
+math editor only, it isn't a general LyX inset. It's used to represent all
+the math objects.
+
+Math insets do not know there parents, a cursor position or things
+like that. The are dumb object that are contained in other math insets
+(mathNestInsets, in fact) thus forming a tree. The root of this tree is
+always a mathHullInset, which provides an interface to the Outer World by
+inclusion in the "real LyX insets" FormulaInset and FormulaMacroInset.
-/** Abstract base class for all math objects.
- A math insets is for use of the math editor only, it isn't a
- general LyX inset. It's used to represent all the math objects.
- The formulaInset (a LyX inset) encapsulates a math inset.
*/
-class LaTeXFeatures;
+class MathArrayInset;
+class MathBoxInset;
class MathCharInset;
+class MathDelimInset;
+class MathFuncInset;
+class MathGridInset;
+class MathFracInset;
+class MathHullInset;
+class MathMatrixInset;
+class MathNestInset;
class MathScriptInset;
+class MathStringInset;
+class MathSpaceInset;
+class MathSymbolInset;
+
+class NormalStream;
+class OctaveStream;
+class MapleStream;
+class MathMLStream;
+class WriteStream;
+class MathArray;
+
+class LaTeXFeatures;
+class BufferView;
+class UpdatableInset;
+class MathMacroTemplate;
+class MathPosFinder;
+
class MathInset {
public:
- ///
- typedef MathArray::size_type size_type;
-
- ///
- MathInset();
+ /// short of anything else reasonable
+ typedef MathArray::size_type size_type;
+ /// type for cursor positions differences within a cell
+ typedef MathArray::difference_type difference_type;
+ /// type for cursor positions within a cell
+ typedef MathArray::size_type pos_type;
+ /// type for cell indices
+ typedef size_type idx_type;
+ /// type for row numbers
+ typedef size_type row_type;
+ /// type for column numbers
+ typedef size_type col_type;
+
+ /// our members behave nicely...
+ MathInset() {}
/// the virtual base destructor
- virtual ~MathInset();
+ virtual ~MathInset() {}
- /// draw the object, sets xo_ and yo_ cached values
+ /// draw the object
virtual void draw(Painter &, int x, int y) const;
/// write LaTeX and Lyx code
- virtual void write(std::ostream &, bool fragile) const;
- /// write normalized content
- virtual void writeNormal(std::ostream &) const;
+ virtual void write(WriteStream & os) const;
/// reproduce itself
virtual MathInset * clone() const = 0;
- ///substitutes macro arguments if necessary
+ /// substitutes macro arguments if necessary
virtual void substitute(MathMacro const & macro);
/// compute the size of the object, sets ascend_, descend_ and width_
- virtual void metrics(MathStyles st) const;
- ///
+ // updates the (xo,yo)-caches of all contained cells
+ virtual void metrics(MathMetricsInfo const & st) const;
+ /// the ascent of the inset above the baseline
virtual int ascent() const { return 1; }
- ///
+ /// the descent of the inset below the baseline
virtual int descent() const { return 1; }
- ///
+ /// total width
virtual int width() const { return 2; }
- ///
+ /// total height (== ascent + descent)
virtual int height() const;
- ///
- virtual MathStyles size() const;
/// Where should we go when we press the up cursor key?
- virtual bool idxUp(unsigned int & idx, unsigned int & pos) const;
+ virtual bool idxUp(idx_type & idx) const;
/// The down key
- virtual bool idxDown(unsigned int & idx, unsigned int & pos) const;
+ virtual bool idxDown(idx_type & idx) const;
/// The left key
- virtual bool idxLeft(unsigned int & idx, unsigned int & pos) const;
+ virtual bool idxLeft(idx_type & idx, pos_type & pos) const;
/// The right key
- virtual bool idxRight(unsigned int & idx, unsigned int & pos) const;
+ virtual bool idxRight(idx_type & idx, pos_type & pos) const;
/// Move one physical cell up
- virtual bool idxNext(unsigned int & idx, unsigned int & pos) const;
+ virtual bool idxNext(idx_type & idx, pos_type & pos) const;
/// Move one physical cell down
- virtual bool idxPrev(unsigned int & idx, unsigned int & pos) const;
+ virtual bool idxPrev(idx_type & idx, pos_type & pos) const;
/// Target pos when we enter the inset from the left by pressing "Right"
- virtual bool idxFirst(unsigned int & idx, unsigned int & pos) const;
+ virtual bool idxFirst(idx_type & idx, pos_type & pos) const;
/// Target pos when we enter the inset from the right by pressing "Left"
- virtual bool idxLast(unsigned int & idx, unsigned int & pos) const;
+ virtual bool idxLast(idx_type & idx, pos_type & pos) const;
/// Where should we go if we press home?
- virtual bool idxHome(unsigned int & idx, unsigned int & pos) const;
+ virtual bool idxHome(idx_type & idx, pos_type & pos) const;
/// Where should we go if we press end?
- virtual bool idxEnd(unsigned int & idx, unsigned int & pos) const;
+ virtual bool idxEnd(idx_type & idx, pos_type & pos) const;
/// Delete a cell and move cursor
// the return value indicates whether the cursor should leave the inset
// and/or the whole inset should be deleted
- virtual void idxDelete(unsigned int & idx, bool & popit, bool & deleteit);
+ virtual void idxDelete(idx_type & idx, bool & popit, bool & deleteit);
// deletes a cell range and moves the cursor
- virtual void idxDeleteRange(unsigned int from, unsigned int to);
+ virtual void idxDeleteRange(idx_type from, idx_type to);
// returns list of cell indices that are "between" from and to for
// selection purposes
- virtual std::vector<unsigned int>
- idxBetween(unsigned int from, unsigned int to) const;
-
- ///
- virtual unsigned int nargs() const;
-
- ///
- virtual MathArray & cell(unsigned int);
- ///
- virtual MathArray const & cell(unsigned int) const;
- ///
- virtual MathXArray & xcell(unsigned int);
- ///
- virtual MathXArray const & xcell(unsigned int) const;
+ virtual std::vector<idx_type> idxBetween(idx_type from, idx_type to) const;
+
+ /// the number of nested cells this inset owns
+ virtual idx_type nargs() const;
+
+ /// return cell given its number
+ virtual MathArray & cell(idx_type);
+ /// return cell given its number
+ virtual MathArray const & cell(idx_type) const;
+ /// return cell plus drawing cache given its number
+ virtual MathXArray & xcell(idx_type);
+ /// return cell plus drawing cache given its number
+ virtual MathXArray const & xcell(idx_type) const;
- ///
- virtual int xo() const;
- ///
- virtual int yo() const;
- ///
- virtual void xo(int tx) const;
- ///
- virtual void yo(int ty) const;
- ///
-
- ///
- virtual unsigned int ncols() const { return 1; }
- ///
- virtual unsigned int nrows() const { return 1; }
- ///
- virtual unsigned int col(unsigned int) const { return 0; }
- ///
- virtual unsigned int row(unsigned int) const { return 0; }
- ///
- virtual int cellXOffset(unsigned int) const { return 0; }
- ///
- virtual int cellYOffset(unsigned int) const { return 0; }
- ///
- virtual void addRow(unsigned int) {}
- ///
- virtual void delRow(unsigned int) {}
- ///
- virtual void addCol(unsigned int) {}
- ///
- virtual void delCol(unsigned int) {}
-
- ///
- virtual void userSetSize(MathStyles &) {}
+ /// the number of columns of this inset if it is grid-like
+ virtual col_type ncols() const { return 1; }
+ /// the number of rows of this inset if it is grid-like
+ virtual row_type nrows() const { return 1; }
+ /// to which column belongs a cell with a given index?
+ virtual col_type col(idx_type) const { return 0; }
+ /// to which row belongs a cell with a given index?
+ virtual row_type row(idx_type) const { return 0; }
+ /// cell idex corresponding to row and column;
+ virtual idx_type index(row_type row, col_type col) const;
+ /// any additional x-offset when drawing a cell?
+ virtual int cellXOffset(idx_type) const { return 0; }
+ /// any additional y-offset when drawing a cell?
+ virtual int cellYOffset(idx_type) const { return 0; }
+
+ /// identifies certain types of insets
+ virtual MathArrayInset * asArrayInset() { return 0; }
+ virtual MathBoxInset * asBoxInset() { return 0; }
+ virtual MathBoxInset const * asBoxInset() const { return 0; }
+ virtual MathCharInset const * asCharInset() const { return 0; }
+ virtual MathDelimInset * asDelimInset() { return 0; }
+ virtual MathDelimInset const * asDelimInset() const { return 0; }
+ virtual MathFuncInset * asFuncInset() { return 0; }
+ virtual MathFracInset * asFracInset() { return 0; }
+ virtual MathGridInset * asGridInset() { return 0; }
+ virtual MathHullInset * asHullInset() { return 0; }
+ virtual MathHullInset const * asHullInset() const { return 0; }
+ virtual MathMacroTemplate * asMacroTemplate() { return 0; }
+ virtual MathMatrixInset const * asMatrixInset() const { return 0; }
+ virtual MathNestInset * asNestInset() { return 0; }
+ virtual MathScriptInset * asScriptInset() { return 0; }
+ virtual MathScriptInset const * asScriptInset() const { return 0; }
+ virtual MathSpaceInset * asSpaceInset() { return 0; }
+ virtual MathStringInset * asStringInset() { return 0; }
+ virtual MathSymbolInset const * asSymbolInset() const { return 0; }
+ virtual UpdatableInset * asHyperActiveInset() const { return 0; }
- ///
- virtual void getXY(int & x, int & y) const;
- ///
- virtual bool covers(int x, int y) const;
/// identifies things that can get scripts
virtual bool isScriptable() const { return false; }
- /// identifies ScriptInsets
- virtual bool isScriptInset() const { return false; }
- /// identifies SpaceInsets
- virtual bool isSpaceInset() const { return false; }
- /// identifies GridInsets
- virtual bool isGrid() const { return false; }
- /// identifies ArrayInsets
- virtual bool isArray() const { return false; }
- /// identifies CharInsets
- virtual MathCharInset const * asCharInset() const { return 0; }
- /// identifies ScriptInsets
- virtual MathScriptInset const * asScriptInset() const { return 0; }
- ///
+ /// thing that can be moved into
virtual bool isActive() const { return nargs() > 0; }
- ///
+ /// identifies insets from the outer world
+ virtual bool isHyperActive() const { return 0; }
+ /// is the a relational operator (used for splitting equations)
virtual bool isRelOp() const { return false; }
- ///
- virtual bool isMacro() const { return false; }
- ///
+
+ /// return the content as char if the inset is able to do so
virtual char getChar() const { return 0; }
- ///
+ /// return the content's char code if it has one
virtual MathTextCodes code() const { return LM_TC_MIN; }
/// identifies things that can get \limits or \nolimits
virtual bool takesLimits() const { return false; }
///
- virtual void push_back(MathInset *);
- ///
- virtual void push_back(unsigned char c, MathTextCodes code);
- ///
- virtual void dump() const;
+ virtual void edit(BufferView *, int, int, unsigned int) {}
- ///
+ /// request "external features"
virtual void validate(LaTeXFeatures & features) const;
- ///
+ /// char char code if possible
virtual void handleFont(MathTextCodes) {}
+ /// is this inset equal to a given other inset?
+ virtual bool match(MathInset *) const { return false; }
+ /// replace things by other things
+ virtual void replace(ReplaceData &) {}
- ///
- static int workwidth;
-
-protected:
- /// _sets_ style
- void size(MathStyles s) const;
- /// the used font size
- mutable MathStyles size_;
-
-private:
- /// the following are used for positioning the cursor with the mouse
- /// cached cursor start position in pixels from the document left
- mutable int xo_;
- /// cached cursor start position in pixels from the document top
- mutable int yo_;
+ /// write normalized content
+ virtual void normalize(NormalStream &) const;
+ /// write content as something readable by Maple
+ virtual void maplize(MapleStream &) const;
+ /// write content as something resembling MathML
+ virtual void mathmlize(MathMLStream &) const;
+ /// write content as something readable by Octave
+ virtual void octavize(OctaveStream &) const;
+
+ /// dump content to stderr for debugging
+ virtual void dump() const;
};
std::ostream & operator<<(std::ostream &, MathInset const &);
projects / lyx.git / blobdiff