#pragma interface
#endif
-#include "math_defs.h"
-#include "symbol_def.h"
#include "LString.h"
+#include "symbol_def.h"
-/**
- Functions or LaTeX names for objects that I don't know how to draw.
- */
-class MathFuncInset: public MathedInset {
-public:
+class Painter;
+
+/** 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);
///
explicit
- MathFuncInset(char const * nm,
- short ot = LM_OT_FUNC, short st = LM_ST_TEXT);
+ MathedInset(MathedInset *);
///
- ~MathFuncInset();
+ 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;
///
- MathedInset * Clone();
+ virtual int Descent() const;
///
- void draw(Painter &, int, int);
+ virtual int Width() const;
///
- void Write(std::ostream &);
+ virtual int Height() const;
///
- void Metrics();
+ virtual bool GetLimits() const;
///
- inline bool GetLimits() const;
-protected:
+ virtual void SetLimits(bool);
///
- int ln;
+ string const & GetName() const;
///
- bool lims;
+ short GetType() const;
///
- char * fname;
-};
-
-
-/// Accents
-class MathAccentInset: public MathedInset {
-public:
+ short GetStyle() const;
+ //Man: Avoid to use these functions if it's not strictly necessary
///
- MathAccentInset(byte, MathedTextCodes, int, short st = LM_ST_TEXT);
+ virtual void SetType(short t);
///
- MathAccentInset(MathedInset *, int, short st = LM_ST_TEXT);
+ virtual void SetStyle(short st);
///
- ~MathAccentInset();
+ virtual void SetName(string const & n);
///
- MathedInset * Clone();
+ static int workWidth;
///
- void draw(Painter &, int, int);
+ static void defaultAscent(int da);
///
- void Write(std::ostream &);
+ static void defaultDescent(int dd);
///
- void Metrics();
+ static void defaultWidth(int dw);
///
- int getAccentCode() const { return code; }
-
+ short size() const {
+ return size_;
+ }
protected:
///
- byte c;
+ string name;
///
- MathedTextCodes fn;
+ short objtype;
///
- int code;
+ int width;
///
- MathedInset * inset;
+ int ascent;
///
- int dh, dy;
-};
-
-
-///
-class MathDotsInset: public MathedInset {
-public:
- ///
- MathDotsInset(char const *, int, short st = LM_ST_TEXT);
+ int descent;
+ /// Default metrics
+ static int df_asc;
///
- MathedInset * Clone();
+ static int df_des;
///
- void draw(Painter &, int, int);
- ///
- void Write(std::ostream &);
- ///
- void Metrics();
-protected:
+ 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 &);
///
- int dh, code;
-};
-
-
-/// Smart spaces
-class MathSpaceInset: public MathedInset {
-public:
- ///
- MathSpaceInset(int sp, short ot = LM_OT_SPACE, short st = LM_ST_TEXT);
- ///
- MathedInset * Clone();
- ///
- void draw(Painter &, int, int);
- ///
- void Write(std::ostream &);
- ///
- 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);
- ///
- MathedInset * Clone();
- ///
- void draw(Painter &, int, int);
- ///
- void Write(std::ostream &);
- ///
- 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);
- ///
- MathedInset * Clone();
- ///
- void draw(Painter &, int x, int baseline);
- ///
- void Write(std::ostream &);
- ///
- void Metrics();
- ///
- bool Inside(int, int);
+ void size(short s) {
+ size_ = s;
+ }
+ void incSize() {
+ ++size_;
+ }
private:
///
- int hmax, wbody;
+ short size_;
};
-
-
-/// Fraction like objects (frac, stackrel, binom)
-class MathFracInset: public MathParInset {
-public:
- ///
- MathFracInset(short ot = LM_OT_FRAC);
- ///
- ~MathFracInset();
- ///
- MathedInset * Clone();
- ///
- void draw(Painter &, int x, int baseline);
- ///
- void Write(std::ostream &);
- ///
- void Metrics();
-
- /** This does the same that SetData(LyxArrayBase*) but for both
- numerator and denominator at once.
- */
- void SetData(LyxArrayBase *, LyxArrayBase *);
- ///
- void SetData(LyxArrayBase *);
- ///
- void GetXY(int & x, int & y) const;
- ///
- 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; }
- ///
- void SetStyle(short);
-protected:
- ///
- short idx;
- ///
- MathParInset * den;
- ///
- int w0, w1, des0, dh;
-};
-
-
-/// A delimiter
-class MathDelimInset: public MathParInset {
-public:
- ///
- MathDelimInset(int, int, short st = LM_ST_TEXT);
- ///
- MathedInset * Clone();
- ///
- void draw(Painter &, int, int);
- ///
- void Write(std::ostream &);
- ///
- 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);
- ///
- MathedInset * Clone();
- ///
- void draw(Painter &, int, int);
- ///
- void Write(std::ostream &);
- ///
- void Metrics();
- ///
- inline bool GetLimits() const;
-protected:
- ///
- int deco;
- ///
- bool upper;
- ///
- int dw, dh, dy;
-};
-
-
-// -------------------- 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(std::ostream & os)
-{
- os << "\\" << name << ' ';
-}
-
-
-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 sym != LM_int && sym != LM_oint && GetStyle() == LM_ST_DISPLAY;
- }
-
- // Custom
- return lims > 0;
-}
-
-
-inline
-void MathBigopInset::SetLimits(bool ls)
-{
- lims = ls ? 1 : 0;
-}
-
-
-inline
-bool MathDecorationInset::GetLimits() const
-{
- return deco == LM_underbrace || deco == LM_overbrace;
-}
-
#endif