*
* Dependencies: Xlib
*
- * Copyright: (c) 1996, 1997 Alejandro Aguilar Sierra
+ * Copyright: 1996, 1997 Alejandro Aguilar Sierra
*
- * Version: 0.8beta, Mathed & Lyx project.
+ * Version: 0.8beta, Math & Lyx project.
*
* You are free to use and modify this code under the terms of
* the GNU General Public Licence version 2 or later.
#pragma interface
#endif
-#include <cstdio>
-#include "LString.h"
-#include "debug.h"
-
-#include "array.h"
///
-enum math_align {
+enum MathTextCodes {
+ ///
+ LM_TC_MIN = 0,
+ /// internal code for variables
+ LM_TC_VAR,
+ /// internal code for stuff in wrapped in mbox etc
+ LM_TC_BOX,
///
- MATH_ALIGN_LEFT = 1,
+ LM_TC_CONST,
///
- MATH_ALIGN_RIGHT = 2,
+ LM_TC_RM,
///
- MATH_ALIGN_BOTTOM = 4,
+ LM_TC_CAL,
///
- MATH_ALIGN_TOP = 8
-};
-///
-#define MATH_COLSEP 8
-///
-#define MATH_ROWSEP 8
-
-
-/// Standard Math Sizes (Math mode styles)
-enum MathedStyles {
+ LM_TC_EUFRAK,
///
- LM_ST_DISPLAY = 0,
- ///
- LM_ST_TEXT,
- ///
- LM_ST_SCRIPT,
- ///
- LM_ST_SCRIPTSCRIPT
-};
-
-
-/// Standard LaTeX Math Environments
-enum MathedEnvironment {
+ LM_TC_BF,
+ //
+ LM_TC_BB,
///
- LM_EN_INTEXT = 0,
- ///
- LM_EN_DISPLAY,
- ///
- LM_EN_EQUATION,
- ///
- LM_EN_EQNARRAYAST,
- ///
- LM_EN_EQNARRAY,
- ///
- LM_EN_ARRAY
-};
-
-
-/** The restrictions of a standard LaTeX math paragraph
- allows to get a small number of text codes (<30) */
-enum MathedTextCodes {
- /// This must be >= 0
- LM_TC_MIN = 0,
- /// Open and Close group
- LM_TC_OPEN,
- ///
- LM_TC_CLOSE,
- /// Tabulator
- LM_TC_TAB,
- /// New line
- LM_TC_CR,
- /// Math Inset
- LM_TC_INSET,
- /// Super and sub scripts
- LM_TC_UP,
- ///
- LM_TC_DOWN,
- /// Editable Math Inset
- LM_TC_ACTIVE_INSET,
- /// Editable Text Inset
- LM_TC_TEXT_INSET,
- ///
- LM_FONT_BEGIN,
- /// Internal code for constants
- LM_TC_CONST,
- /// Internal code for variables
- LM_TC_VAR,
- ///
- LM_TC_RM,
- ///
- LM_TC_CAL,
- ///
- LM_TC_BF,
- ///
- LM_TC_SF,
- ///
- LM_TC_TT,
- ///
- LM_TC_IT,
- ///
- LM_TC_TEXTRM,
- /// Math mode TeX characters ",;:{}"
- LM_TC_TEX,
- /// Special characters "{}&#_%"
- LM_TC_SPECIAL,
- /// Internal code for operators
- LM_TC_BOP,
- /// Internal code for symbols
- LM_TC_SYMB,
- ///
- LM_TC_BOPS,
- ///
- LM_TC_BSYM,
- ///
- LM_FONT_END,
-
- /// This must be < 32
- LM_TC_MAX
-};
-
-ostream & operator<<(ostream &, MathedTextCodes mtc);
-
-///
-#define LM_TC_NORMAL LM_TC_VAR
-
-
-/// Types of lyx-math insets
-enum MathedInsetTypes {
- ///
- LM_OT_MIN = 0,
- /// A simple paragraph
- LM_OT_PAR,
- /// A simple numbered paragraph
- LM_OT_PARN,
- /// A multiline paragraph
- LM_OT_MPAR,
- /// A multiline numbered paragraph
- LM_OT_MPARN,
- /// An array
- LM_OT_MATRIX,
- /// A big operator
- LM_OT_BIGOP,
- /// A LaTeX macro
- LM_OT_UNDEF,
- ///
- LM_OT_FUNC,
- ///
- LM_OT_FUNCLIM,
- ///
- LM_OT_SCRIPT,
- ///
- LM_OT_SPACE,
- ///
- LM_OT_DOTS,
- /// A fraction
- LM_OT_FRAC,
- ///
- LM_OT_ATOP,
- ///
- LM_OT_STACKREL,
- /// A radical
- LM_OT_SQRT,
- /// A delimiter
- LM_OT_DELIM,
- /// A decoration
- LM_OT_DECO,
- /// An accent
- LM_OT_ACCENT,
- ///
- LM_OT_MACRO,
- ///
- LM_OT_MACRO_ARG,
- ///
- LM_OT_MAX
-};
-
-///
-enum MathedBinaryTypes {
+ LM_TC_SF,
///
- LMB_NONE = 0,
- ///
- LMB_RELATION,
- ///
- LMB_OPERATOR,
- ///
- LMB_BOP = (LMB_RELATION | LMB_OPERATOR)
-};
-
-class MathedInset;
-class MathParInset;
-
-
-/** 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 MathedInset {
- public:
- /// A math inset has a name (usually its LaTeX name), type and font-size
- MathedInset(char const * nm, short ot, short st);
- ///
- MathedInset(MathedInset *);
- ///
- virtual ~MathedInset() {}
-
- /// Draw the object
- virtual void Draw(int x, int baseline) = 0;
-
- /// Write LaTeX and Lyx code
- virtual void Write(FILE * file) = 0;
- /// Write LaTeX and Lyx code
- virtual void Write(string & file) = 0;
-
- /// Reproduces itself
- virtual MathedInset * Clone() = 0;
-
- /// Compute the size of the object
- virtual void Metrics() = 0;
- ///
- virtual int Ascent() const { return ascent; }
- ///
- virtual int Descent() const { return descent; }
- ///
- virtual int Width() const { return width; }
- ///
- virtual int Height() const { return ascent + descent; }
-
- ///
- virtual bool GetLimits() const { return false; }
- ///
- virtual void SetLimits(bool) {}
-
- ///
- char const * GetName() const { return name; }
- ///
- short GetType() const { return objtype; }
- ///
- short GetStyle() const { return size; }
-
- //Man: Avoid to use these functions if it's not strictly necessary
- ///
- virtual void SetType(short t) { objtype = t; }
- ///
- virtual void SetStyle(short st) { size = st; } // Metrics();
- ///
- virtual void SetName(char const * n) { name = n; }
- ///
- void setDrawable(long unsigned int d) { pm = d; }
-
- protected:
- ///
- char const * name;
- ///
- short objtype;
- ///
- int width;
- ///
- int ascent;
- ///
- int descent;
- ///
- short size;
- /// This works while only one process can draw unless
- /// the process have their own data
- static long unsigned int pm;
- /// Default metrics
- static int df_asc, df_des, df_width;
-
- /// In a near future maybe we use a better fonts renderer than X
- void drawStr(short, int, int, int, byte *, int);
+ LM_TC_TT,
///
- friend class MathedCursor;
+ LM_TC_IT,
///
- friend void mathed_init_fonts();
-};
-
-struct MathedRowSt;
-
-
-/// Paragraph permissions
-enum MathedParFlag {
- LMPF_BASIC = 0,
- /// If false can use a non-standard size
- LMPF_FIXED_SIZE = 1,
- /// If true can insert newlines
- LMPF_ALLOW_CR = 2,
- /// If true can use tabs
- LMPF_ALLOW_TAB = 4,
- /// If true can insert new columns
- LMPF_ALLOW_NEW_COL = 8,
- /// Smaller than current size (frac)
- LMPF_SMALLER = 16,
- /// Script size (subscript, stackrel)
- LMPF_SCRIPT = 32
-};
-
-
-/** The math paragraph base class, base to all editable math objects */
-class MathParInset: public MathedInset {
- public:
- ///
- MathParInset(short st= LM_ST_TEXT, char const * nm= 0,
- short ot= LM_OT_MIN);
- ///
- MathParInset(MathParInset *);
- ///
- virtual ~MathParInset();
- ///
- virtual MathedInset * Clone();
-
- /// Draw the object on a drawable
- virtual void Draw(int x, int baseline);
-
- /// Write LaTeX code
- virtual void Write(FILE * file);
- /// Write LaTeX code
- virtual void Write(string & file);
- ///
- virtual void Metrics();
- ///
- virtual void UserSetSize(short);
-
- /// Data is stored in a LyXArray
- virtual void SetData(LyxArrayBase *);
- ///
- virtual LyxArrayBase * GetData() { return array; }
-
- /// Paragraph position
- virtual void GetXY(int &, int &) const;
- ///
- virtual void setXY(int x, int y) { xo = x; yo = y; }
- ///
- virtual void SetFocus(int, int) {}
- ///
- virtual bool Inside(int, int);
-
- // Tab stuff used by Matrix.
- ///
- virtual void SetAlign(char, char const *) {}
-// ///
-// virtual int GetTabPos() { return 0; }
-// ///
-// virtual int GetTab(int) { return 0; }
- ///
- virtual int GetColumns() { return 1; }
- ///
- virtual int GetRows() { return 1; }
- ///
- virtual bool isMatrix() { return false; }
-// /// These functions should report an error
-// virtual char const* GetLabel() { return 0; }
-// virtual char const* GetLabel(int) { return 0; }
-
- // Vertical switching
- ///
- virtual bool setArgumentIdx(int i) { return (i == 0); }
- ///
- virtual bool setNextArgIdx() { return false; }
- ///
- virtual int getArgumentIdx() { return 0; }
- ///
- virtual int getMaxArgumentIdx() { return 0; }
-// ///
-// virtual void SetLabel(char const *) {}
- ///
- virtual void SetStyle(short);
+ LM_TC_TEXTRM,
+ /// math mode TeX characters ",;:{}"
+ LM_TC_TEX,
+ /// internal code when typing greek
+ LM_TC_GREEK,
+ /// internal code when typing a single greek character
+ LM_TC_GREEK1,
+ /// internal code for symbols
+ LM_TC_SYMB,
+ /// internal code for symbols that get bigger in displayed math
+ LM_TC_BOLDSYMB,
///
- virtual MathedRowSt * getRowSt() const { return 0; }
+ LM_TC_CMR,
///
- virtual void setRowSt(MathedRowSt *) {}
+ LM_TC_CMSY,
///
- virtual bool Permit(short f) { return bool(f & flag); }
-
- protected:
- /// Paragraph data is stored here
- LyxArrayBase * array;
- /// Cursor start position
- int xo, yo;
- ///
- short flag;
-
- private:
- ///
- virtual void setFlag(MathedParFlag f) { flag |= f; }
+ LM_TC_CMM,
///
- friend class InsetFormula;
+ LM_TC_CMEX,
///
- friend class MathedXIter;
+ LM_TC_MSA,
///
- friend class MathedCursor;
+ LM_TC_MSB,
///
- friend LyxArrayBase * mathed_parse(unsigned flags = 0,
- LyxArrayBase * a = 0,
- MathParInset ** p = 0);
+ LM_FONT_END
};
-/* The physical structure of a row and aditional information is stored here.
- It allows to manage the extra info independently of the paragraph data.
- Only used for multiline paragraphs.
- */
-struct MathedRowSt {
- ///
- MathedRowSt(int n) {
- w = new int[n + 1]; // this leaks
- next = 0;
- label = 0;
- numbered = true;
- }
- ///
- ~MathedRowSt() {
- delete[] w;
- if (label) delete[] label;
- }
- /// Should be const but...
- MathedRowSt * getNext() const { return next; }
- /// ...we couldn't use this.
- void setNext(MathedRowSt * n) { next = n; }
- ///
- char const * getLabel() const { return label; }
- ///
- bool isNumbered() const { return numbered; }
- ///
- int getBaseline() const { return y; }
- ///
- int getTab(int i) { return w[i]; }
- ///
- void setLabel(char * l) { label = l; }
- ///
- void setNumbered(bool nf) { numbered = nf; }
- ///
- void setTab(int i, int t) { w[i] = t; }
-
- private:
- /// Vericals
- int asc, desc, y;
- /// widths
- int * w;
- ///
- char * label;
- ///
- bool numbered;
- ///
- MathedRowSt * next;
+/// Types of lyx-math insets
+enum MathInsetTypes {
///
- friend class MathMatrixInset;
+ LM_OT_SIMPLE = 0,
///
- friend class MathedXIter;
-};
-
-
-/** Multiline math paragraph base class.
- This is the base to all multiline editable math objects
- like array and eqnarray.
- */
-class MathMatrixInset: public MathParInset {
- public:
- ///
- MathMatrixInset(int m = 1, int n = 1, short st = LM_ST_TEXT);
- ///
- MathMatrixInset(MathMatrixInset *);
- ///
- MathedInset * Clone();
- ///
- virtual ~MathMatrixInset();
- ///
- void Draw(int, int);
- ///
- void Write(FILE * file);
- ///
- void Write(string & file);
- ///
- void Metrics();
- ///
- void SetData(LyxArrayBase *);
- ///
- void SetAlign(char, char const *);
- ///
- char * GetAlign(char * vv) {
- *vv = v_align;
- return h_align;
- }
-// ///
-// int GetTab(int);
- ///
- int GetColumns() { return nc; }
- ///
- int GetRows() { return nr; }
- ///
- virtual bool isMatrix() { return true; }
-
- /// Use this to manage the extra information independently of paragraph
- MathedRowSt * getRowSt() const { return row; }
+ LM_OT_EQUATION,
+ ///
+ LM_OT_EQNARRAY,
+ ///
+ LM_OT_ALIGN,
///
- void setRowSt(MathedRowSt * r) { row = r; }
-
- protected:
- /// Number of columns & rows
- int nc, nr;
- /// tab sizes
- int * ws;
- ///
- char v_align; // add approp. signedness
- ///
- char * h_align;
- /// Vertical structure
- MathedRowSt * row;
+ LM_OT_ALIGNAT,
+ ///
+ LM_OT_XALIGNAT,
+ ///
+ LM_OT_XXALIGNAT,
+ ///
+ LM_OT_MULTLINE,
+ ///
+ LM_OT_GATHER,
+ /// An array
+ LM_OT_MATRIX,
+ /// A LaTeX macro
+ LM_OT_UNDEF,
+ ///
+ LM_OT_FUNCLIM,
+ ///
+ LM_OT_MACRO,
+ ///
+ LM_OT_MAX
};
-
-
-/************************* Prototypes **********************************/
-///
-LyxArrayBase * mathed_parse(unsigned flags, LyxArrayBase * data,
- MathParInset ** mt);
-///
-void mathed_write(MathParInset *, FILE *, int *, char fragile,
- char const * label = 0);
-///
-void mathed_write(MathParInset *, string &, int *, char fragile,
- char const * label = 0);
-///
-void mathed_parser_file(FILE *, int);
-///
-int mathed_parser_lineno();
-///
-int MathedLookupBOP(short);
-
-/************************ Inline functions ********************************/
-///
-inline bool MathIsInset(short x)
-{
- return LM_TC_INSET <= x && x <= LM_TC_ACTIVE_INSET;
-}
-
-///
-inline bool MathIsFont(short x)
-{
- return LM_TC_CONST <= x && x <= LM_TC_BSYM;
-}
-
-///
-inline bool MathIsAlphaFont(short x)
-{
- return LM_TC_VAR <= x && x <= LM_TC_TEXTRM;
-}
-
-///
-inline bool MathIsActive(short x)
-{
- return LM_TC_INSET < x && x <= LM_TC_ACTIVE_INSET;
-}
-
-///
-inline bool MathIsUp(short x)
-{
- return x == LM_TC_UP;
-}
-
-///
-inline bool MathIsDown(short x)
-{
- return x == LM_TC_DOWN;
-}
-
-///
-inline bool MathIsScript(short x)
-{
- return x == LM_TC_DOWN || x == LM_TC_UP;
-}
-
-///
-inline bool MathIsBOPS(short x)
-{
- return MathedLookupBOP(x) > LMB_NONE;
-}
-
-
-///
-inline bool MathIsBinary(short x)
-{
- return x == LM_TC_BOP || x == LM_TC_BOPS;
-}
-
-///
-inline bool MathIsSymbol(short x) {
- return LM_TC_SYMB <= x && x <= LM_TC_BSYM;
-}
-
-
-inline
-MathedInset::MathedInset(char const * nm, short ot, short st):
- name(nm), objtype(ot), size(st)
-{
- width = ascent = descent = 0;
-}
-
-inline
-bool MathParInset::Inside(int x, int y)
-{
- return (x >= xo && x <= xo + width && y <= yo + descent && y >= yo - ascent);
-}
-
-
-inline
-void MathParInset::GetXY(int & x, int & y) const
-{
- x = xo; y = yo;
-}
-
-
-inline
-void MathParInset::UserSetSize(short sz)
-{
- if (sz >= 0) {
- size = sz;
- flag = flag & ~LMPF_FIXED_SIZE;
- }
-}
-
-
-inline
-void MathParInset::SetStyle(short sz)
-{
- if (Permit(LMPF_FIXED_SIZE)) {
- if (Permit(LMPF_SCRIPT))
- sz = (sz < LM_ST_SCRIPT) ? LM_ST_SCRIPT: LM_ST_SCRIPTSCRIPT;
- if (Permit(LMPF_SMALLER) && sz < LM_ST_SCRIPTSCRIPT) {
- ++sz;
- }
- MathedInset::SetStyle(sz);
- }
-}
-
#endif
projects / lyx.git / blobdiff