*
* Dependencies: Xlib, XForms
*
- * Copyright: (c) 1996, 1997 Alejandro Aguilar Sierra
+ * Copyright: 1996, 1997 Alejandro Aguilar Sierra
*
* Version: 0.8beta, Mathed & Lyx project.
*
#pragma interface
#endif
-#include <stdio.h>
-#include "math_defs.h"
-#include "symbol_def.h"
#include "LString.h"
+#include "symbol_def.h"
+class Painter;
-/**
- Functions or LaTeX names for objects that I don't know how to draw.
- */
-class MathFuncInset: public MathedInset {
-public:
- ///
- MathFuncInset(char const *nm, short ot= LM_OT_FUNC, short st= LM_ST_TEXT);
- ///
- ~MathFuncInset();
- ///
- MathedInset *Clone();
- ///
- void Draw(int, int);
- ///
- void Write(FILE *file);
- ///
- void Write(string &file);
- ///
- void Metrics();
- ///
- inline bool GetLimits() const;
-protected:
- ///
- int ln;
- ///
- bool lims;
- ///
- char *fname;
-};
-
-
-/// Accents
-class MathAccentInset: public MathedInset {
- public:
- ///
- MathAccentInset(byte, MathedTextCodes, int, short st= LM_ST_TEXT);
- ///
- MathAccentInset(MathedInset *, int, short st= LM_ST_TEXT);
- ///
- ~MathAccentInset();
- ///
- MathedInset *Clone();
- ///
- void Draw(int, int);
- ///
- void Write(FILE *file);
- ///
- void Write(string &file);
- ///
- void Metrics();
- ///
- int getAccentCode() const { return code; }
-
- protected:
- ///
- byte c;
- ///
- MathedTextCodes fn;
- ///
- int code;
- ///
- MathedInset *inset;
- ///
- int dh, dy;
-};
-
-
-///
-class MathDotsInset: public MathedInset {
- public:
- ///
- MathDotsInset(char const*, int, short st= LM_ST_TEXT);
- ///
- ~MathDotsInset() { };
- ///
- MathedInset *Clone();
- ///
- void Draw(int, int);
- ///
- void Write(FILE *file);
- ///
- void Write(string &file);
- ///
- void Metrics();
- protected:
- ///
- int dh, code;
-};
-
-
-/// Smart spaces
-class MathSpaceInset: public MathedInset {
- public:
- ///
- MathSpaceInset(int sp, short ot= LM_OT_SPACE, short st= LM_ST_TEXT);
- ///
- ~MathSpaceInset() { };
- ///
- MathedInset *Clone();
- ///
- void Draw(int, int);
- ///
- void Write(FILE *file);
- ///
- void Write(string &file);
- ///
- inline void Metrics();
- ///
- inline void SetSpace(int sp);
- ///
- int GetSpace() { return space; }
- protected:
- ///
- int space;
-};
-
-
-/// big operators
-class MathBigopInset: public MathedInset {
- public:
- ///
- MathBigopInset(char const*, int, short st= LM_ST_TEXT);
- ///
- ~MathBigopInset() { };
- ///
- MathedInset *Clone();
- ///
- void Draw(int, int);
- ///
- void Write(FILE *file);
- ///
- void Write(string &file);
- ///
- void Metrics();
- ///
- inline bool GetLimits() const;
- ///
- inline void SetLimits(bool);
- protected:
- ///
- int lims;
- ///
- int sym;
-};
-
-
-//------- All editable insets must be derived from MathParInset.
-
-///
-class MathSqrtInset: public MathParInset {
- public:
- ///
- MathSqrtInset(short st= LM_ST_TEXT);
- ///
- ~MathSqrtInset() { };
- ///
- MathedInset *Clone();
- ///
- void Draw(int x, int baseline);
- ///
- void Write(FILE *file);
- ///
- void Write(string &file);
- ///
- void Metrics();
- ///
- bool Inside(int, int);
-
- private:
- ///
- int hmax, wbody;
-};
-
-
-/// Fraction like objects (frac, stackrel, binom)
-class MathFracInset: public MathParInset {
- public:
- ///
- MathFracInset(short ot= LM_OT_FRAC);
- ///
- ~MathFracInset();
+/** 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(string const & nm, short ot, short st);
///
- MathedInset *Clone();
+ explicit
+ MathedInset(MathedInset *);
///
- void Draw(int x, int baseline);
+ virtual ~MathedInset() {}
+ /// Draw the object
+ virtual void draw(Painter &, int x, int baseline) = 0;
+ /// Write LaTeX and Lyx code
+ virtual void Write(std::ostream &, bool fragile) = 0;
+ /// Reproduces itself
+ virtual MathedInset * Clone() = 0;
+ /// Compute the size of the object
+ virtual void Metrics() = 0;
+ ///
+ virtual int Ascent() const;
///
- void Write(FILE *file);
+ virtual int Descent() const;
///
- void Write(string &file);
+ virtual int Width() const;
///
- void Metrics();
-
- /** This does the same that SetData(LyxArrayBase*) but for both
- numerator and denominator at once.
- */
- void SetData(LyxArrayBase*, LyxArrayBase*);
+ virtual int Height() const;
///
- void SetData(LyxArrayBase*);
+ virtual bool GetLimits() const;
///
- void GetXY(int& x, int& y) const;
+ virtual void SetLimits(bool);
///
- void SetFocus(int, int);
- ///
- bool Inside(int, int);
- ///
- LyxArrayBase * GetData();
- ///
- bool setArgumentIdx(int i); // was bool Up/down(void);
- ///
- int getArgumentIdx() { return (int)idx; }
- ///
- int getMaxArgumentIdx() { return 1; }
+ string const & GetName() const;
///
- void SetStyle(short);
- protected:
+ short GetType() const;
///
- short idx;
+ short GetStyle() const;
+ //Man: Avoid to use these functions if it's not strictly necessary
///
- MathParInset *den;
+ virtual void SetType(short t);
///
- int w0, w1, des0, dh;
-};
-
-
-/// A delimiter
-class MathDelimInset: public MathParInset {
- public:
- ///
- MathDelimInset(int, int, short st= LM_ST_TEXT);
+ virtual void SetStyle(short st);
///
- ~MathDelimInset() { };
+ virtual void SetName(string const & n);
///
- MathedInset *Clone();
+ static int workWidth;
///
- void Draw(int, int);
+ static void defaultAscent(int da);
///
- void Write(FILE *file);
+ static void defaultDescent(int dd);
///
- void Write(string &file);
+ static void defaultWidth(int dw);
///
- void Metrics();
- protected:
- ///
- int left, right;
- ///
- int dw, dh;
-};
-
-
-/// Decorations over (below) a math object
-class MathDecorationInset: public MathParInset {
- public:
- ///
- MathDecorationInset(int, short st= LM_ST_TEXT);
- ///
- ~MathDecorationInset() { };
+ short size() const {
+ return size_;
+ }
+protected:
///
- MathedInset *Clone();
+ string name;
///
- void Draw(int, int);
+ short objtype;
///
- void Write(FILE *file);
+ int width;
///
- void Write(string &file);
+ int ascent;
///
- void Metrics();
+ int descent;
+ /// Default metrics
+ static int df_asc;
///
- inline bool GetLimits() const;
- protected:
+ static int df_des;
///
- int deco;
+ static int df_width;
+ /// In a near future maybe we use a better fonts renderer than X
+ void drawStr(Painter &, short, int, int, int, string const &);
///
- bool upper;
+ void size(short s) {
+ size_ = s;
+ }
+ void incSize() {
+ ++size_;
+ }
+private:
///
- int dw, dh, dy;
+ short size_;
};
-
-
-// -------------------- Inline functions ---------------------
-
-
-inline
-MathFuncInset::~MathFuncInset()
-{
- if (fname && GetType() == LM_OT_UNDEF) delete[] fname;
-}
-
-inline
-bool MathFuncInset::GetLimits() const
-{
- return (bool)(lims && (GetStyle() == LM_ST_DISPLAY));
-}
-
-inline
-void MathFuncInset::Write(FILE *file)
-{
- fprintf(file, "\\%s ", name);
-}
-
-inline
-void MathFuncInset::Write(string &file)
-{
- file += '\\';
- file += name;
- file += ' ';
-}
-
-inline
-void MathSpaceInset::Metrics()
-{
- width = (space) ? space*2: 2;
- if (space>3) width *= 2;
- if (space == 5) width *= 2;
- width += 4;
- ascent = 4; descent = 0;
-}
-
-inline
-void MathSpaceInset::SetSpace(int sp)
-{
- space = sp;
- Metrics();
-}
-
-inline
-bool MathBigopInset::GetLimits() const
-{
- // Default case
- if (lims<0) {
- return (bool)(sym!= LM_int && sym!= LM_oint && (GetStyle() == LM_ST_DISPLAY));
- }
-
- // Custom
- return (bool)(lims>0);
-}
-
-inline
-void MathBigopInset::SetLimits(bool ls)
-{
- lims = (ls) ? 1: 0;
-}
-
-inline
-bool MathDecorationInset::GetLimits() const
-{
- return (bool)(deco == LM_underbrace||deco == LM_overbrace);
-}
-
-
#endif
-
projects / lyx.git / blobdiff