*
* 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.
*/
-// Note: These math insets are internal to Mathed and are not derived
+// Note: These math insets are internal to Math and are not derived
// from lyx inset.
-#ifndef MATH_INSET
-#define MATH_INSET
+#ifndef MATH_INSET_H
+#define MATH_INSET_H
+
+#include <config.h>
#ifdef __GNUG__
#pragma interface
#endif
-#include "LString.h"
-#include "symbol_def.h"
-
-class Painter;
-class MathMacro;
+#include "xarray.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.
The formulaInset (a LyX inset) encapsulates a math inset.
*/
-class MathedInset {
+
+
+class MathArrayInset;
+class MathBoxInset;
+class MathCharInset;
+class MathGridInset;
+class MathNestInset;
+class MathMatrixInset;
+class MathScriptInset;
+class MathSpaceInset;
+class MathMacroTemplate;
+
+class LaTeXFeatures;
+class Buffer;
+class BufferView;
+class LyXFont;
+
+
+struct MathMetricsInfo {
+ ///
+ MathMetricsInfo()
+ : view(0), font(0), size(LM_ST_TEXT)
+ {}
+ ///
+ MathMetricsInfo(BufferView * v, LyXFont const * f, MathStyles s)
+ : view(v), font(f), size(s)
+ {}
+
+ ///
+ BufferView * view;
+ ///
+ LyXFont const * font;
+ ///
+ MathStyles size;
+};
+
+
+struct MathWriteInfo {
+ ///
+ MathWriteInfo(Buffer const * buffer_, std::ostream & os_, bool fragile_)
+ : buffer(buffer_), os(os_), fragile(fragile_)
+ {}
+ ///
+ explicit MathWriteInfo(std::ostream & os_)
+ : buffer(0), os(os_), fragile(false)
+ {}
+
+ ///
+ template <class T>
+ MathWriteInfo & operator<<(T const & T)
+ {
+ os << T;
+ return *this;
+ }
+ ///
+ MathWriteInfo & operator<<(MathArray const & ar)
+ {
+ ar.write(*this);
+ return *this;
+ }
+
+
+ ///
+ Buffer const * buffer;
+ ///
+ std::ostream & os;
+ ///
+ bool fragile;
+};
+
+
+class MathInset {
public:
- /** A math inset has a name (usually its LaTeX name),
- type and font-size
- */
- MathedInset(string const & nm, short ot, short st);
- /// The virtual base destructor
- 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;
- /// Write normalized content
- virtual void WriteNormal(std::ostream &) = 0;
- /// Reproduces itself
- virtual MathedInset * Clone() = 0;
- /// Reproduces itself with macro arguments substituted
- virtual void substitute(MathMacro * macro);
- /// Compute the size of the object
- virtual void Metrics() = 0;
+ /// short of anything else reasonable
+ typedef MathArray::size_type size_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;
+
+ ///
+ MathInset();
+ /// the virtual base destructor
+ virtual ~MathInset();
+
+ /// draw the object, sets xo_ and yo_ cached values
+ virtual void draw(Painter &, int x, int y) const;
+ /// write LaTeX and Lyx code
+ virtual void write(MathWriteInfo & os) const;
+ /// write normalized content
+ virtual void writeNormal(std::ostream &) const;
+ /// reproduce itself
+ virtual MathInset * clone() const = 0;
+ ///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(MathMetricsInfo const & st) const;
///
- virtual int Ascent() const;
+ virtual int ascent() const { return 1; }
+ ///
+ virtual int descent() const { return 1; }
+ ///
+ virtual int width() const { return 2; }
///
- virtual int Descent() const;
+ virtual int height() const;
///
- virtual int Width() const;
+ virtual MathStyles size() const;
+
+ /// Where should we go when we press the up cursor key?
+ virtual bool idxUp(idx_type & idx, pos_type & pos) const;
+ /// The down key
+ virtual bool idxDown(idx_type & idx, pos_type & pos) const;
+ /// The left key
+ virtual bool idxLeft(idx_type & idx, pos_type & pos) const;
+ /// The right key
+ virtual bool idxRight(idx_type & idx, pos_type & pos) const;
+
+ /// Move one physical cell up
+ virtual bool idxNext(idx_type & idx, pos_type & pos) const;
+ /// Move one physical cell down
+ 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(idx_type & idx, pos_type & pos) const;
+ /// Target pos when we enter the inset from the right by pressing "Left"
+ virtual bool idxLast(idx_type & idx, pos_type & pos) const;
+
+ /// Where should we go if we press home?
+ virtual bool idxHome(idx_type & idx, pos_type & pos) const;
+ /// Where should we go if we press end?
+ 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(idx_type & idx, bool & popit, bool & deleteit);
+ // deletes a cell range and moves the cursor
+ 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<idx_type> idxBetween(idx_type from, idx_type to) const;
+
///
- virtual int Height() const;
+ virtual idx_type nargs() const;
+
///
- virtual bool GetLimits() const;
+ virtual MathArray & cell(idx_type);
///
- virtual void SetLimits(bool);
+ virtual MathArray const & cell(idx_type) const;
///
- string const & GetName() const;
+ virtual MathXArray & xcell(idx_type);
///
- short GetType() const;
+ virtual MathXArray const & xcell(idx_type) const;
+
///
- short GetStyle() const;
- //Man: Avoid to use these functions if it's not strictly necessary
+ virtual int xo() const;
///
- virtual void SetType(short t);
+ virtual int yo() const;
///
- virtual void SetStyle(short st);
+ virtual void xo(int tx) const;
///
- virtual void SetName(string const & n);
+ virtual void yo(int ty) const;
///
- static int workWidth;
+
///
- static void defaultAscent(int da);
+ virtual col_type ncols() const { return 1; }
///
- static void defaultDescent(int dd);
+ virtual row_type nrows() const { return 1; }
///
- static void defaultWidth(int dw);
+ virtual col_type col(row_type) const { return 0; }
///
- short size() const;
-protected:
+ virtual row_type row(row_type) const { return 0; }
///
- string name;
+ virtual int cellXOffset(row_type) const { return 0; }
///
- short objtype;
+ virtual int cellYOffset(row_type) const { return 0; }
///
- int width;
+ virtual void addRow(row_type) {}
///
- int ascent;
+ virtual void delRow(row_type) {}
///
- int descent;
- /// Default metrics
- static int df_asc;
+ virtual void addCol(col_type) {}
///
- static int df_des;
+ virtual void delCol(col_type) {}
+
///
- 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 &);
+ virtual void userSetSize(MathStyles &) {}
+
///
- void size(short s);
+ virtual void getXY(int & x, int & y) const;
///
- void incSize();
-private:
+ virtual bool covers(int x, int y) const;
+
+ /// identifies NestInsets
+ virtual MathNestInset * asNestInset() { return 0; }
+ /// identifies CharInsets
+ virtual MathCharInset const * asCharInset() const { return 0; }
+ /// identifies ScriptInsets
+ virtual MathScriptInset const * asScriptInset() const { return 0; }
+ /// identifies ScriptInsets
+ virtual MathScriptInset * asScriptInset() { return 0; }
+ /// identifies MatrixInsets
+ virtual MathMatrixInset const * asMatrixInset() const { return 0; }
+ /// identifies MatrixInsets
+ virtual MathMatrixInset * asMatrixInset() { return 0; }
+ /// identifies SpaceInset
+ virtual MathSpaceInset * asSpaceInset() { return 0; }
+ /// identifies GridInset
+ virtual MathGridInset * asGridInset() { return 0; }
+ /// identifies ArrayInsets
+ virtual MathArrayInset * asArrayInset() { return 0; }
+ /// identifies BoxInsets
+ virtual MathBoxInset * asBoxInset() { return 0; }
+ /// identifies macro templates
+ virtual MathMacroTemplate * asMacroTemplate() { return 0; }
+
+ /// identifies things that can get scripts
+ virtual bool isScriptable() const { return false; }
+ ///
+ virtual bool isActive() const { return nargs() > 0; }
+ ///
+ virtual bool isRelOp() const { return false; }
+ ///
+ virtual bool isMacro() const { return false; }
+
+ ///
+ virtual char getChar() const { return 0; }
+ ///
+ 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 validate(LaTeXFeatures & features) const;
///
- short size_;
+ virtual void handleFont(MathTextCodes) {}
+
+ ///
+ static int workwidth;
+
+protected:
+ /// the used font size
+ mutable MathMetricsInfo 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_;
};
+
+std::ostream & operator<<(std::ostream &, MathInset const &);
+
#endif
projects / lyx.git / blobdiff