X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fmathed%2Fmath_cursor.h;h=fae5867490b95784e71310b1fa48571092feedb2;hb=b54bf51387237b8fd8e9c6064143cff4239c2eec;hp=1b4d5bc1b91a89995a8f1d0003aa381bb98ebd19;hpb=a97c6eba47726f14b4a51d081a0802598a1d9662;p=lyx.git diff --git a/src/mathed/math_cursor.h b/src/mathed/math_cursor.h index 1b4d5bc1b9..fae5867490 100644 --- a/src/mathed/math_cursor.h +++ b/src/mathed/math_cursor.h @@ -2,7 +2,7 @@ /* * File: math_cursor.h * Purpose: Declaration of interaction classes for mathed - * Author: Alejandro Aguilar Sierra + * Author: Alejandro Aguilar Sierra * Created: January 1996 * Description: MathCursor control all user interaction * @@ -21,248 +21,309 @@ #pragma interface #endif -#include "math_defs.h" +#include "math_inset.h" +#include "math_iterator.h" +#include "LString.h" -class MathInset; -class MathFuncInset; -class MathUpDownInset; class InsetFormulaBase; -class MathArray; -class MathXArray; -class Painter; +class BufferView; +class MathPainterInfo; +class MathUnknownInset; +class Selection; -/// Description of a position -struct MathCursorPos { - /// inset - MathInset * par_; - /// cell index - int idx_; - /// cell position - int pos_; - /// - bool operator==(const MathCursorPos &) const; - /// - bool operator<(const MathCursorPos &) const; - /// returns cell corresponding to this position - MathArray & cell() const; - /// returns cell corresponding to this position - MathArray & cell(int idx) const; - /// returns xcell corresponding to this position - MathXArray & xcell() const; - /// returns xcell corresponding to this position - MathXArray & xcell(int idx) const; - /// moves position on cell to the left - bool idxLeft(); - /// moves position on cell to the right - bool idxRight(); - /// moves position on cell up - bool idxUp(); - /// moves position on cell up - bool idxDown(); -}; +/** + +[Have a look at math_inset.h first] + +The MathCursor is different from the kind of cursor used in the Outer +World. It contains a stack of MathCursorPos, each of which is made +up of a inset pointer, an index and a position offset, marking a path from +this formula's MathHullInset to the current position. + +*/ -/// This is the external interface of Math's subkernel class MathCursor { public: + /// short of anything else reasonable + typedef MathInset::size_type size_type; + /// type for cursor positions within a cell + typedef MathInset::pos_type pos_type; + /// type for cell indices + typedef MathInset::idx_type idx_type; + /// type for row numbers + typedef MathInset::row_type row_type; + /// type for column numbers + typedef MathInset::col_type col_type; + /// - explicit MathCursor(InsetFormulaBase *); + explicit MathCursor(InsetFormulaBase *, bool left); /// - void insert(char, MathTextCodes t = LM_TC_MIN); + ~MathCursor(); /// - void insert(MathInset *); + void insert(MathAtom const &); /// void insert(MathArray const &); /// - void Home(); - /// - void End(); - /// - bool Right(bool sel = false); - /// - bool Left(bool sel = false); - /// - bool Up(bool sel = false); - /// - bool Down(bool sel = false); + void paste(MathArray const &); + /// + void paste(MathGridInset const & data); + /// + void erase(); + /// + void backspace(); + /// called for LFUN_HOME etc + bool home(bool sel = false); + /// called for LFUN_END etc + bool end(bool sel = false); + /// called for LFUN_RIGHT and LFUN_RIGHTSEL + bool right(bool sel = false); + /// called for LFUN_LEFT etc + bool left(bool sel = false); + /// called for LFUN_UP etc + bool up(bool sel = false); + /// called for LFUN_DOWN etc + bool down(bool sel = false); /// Put the cursor in the first position void first(); /// Put the cursor in the last position void last(); + /// move to next cell in current inset + void idxNext(); + /// move to previous cell in current inset + void idxPrev(); /// - bool plainLeft(); - /// - bool plainRight(); - /// - void Delete(); + void plainErase(); /// - void DelLine(); - /// This is in pixels from (maybe?) the top of inset - void SetPos(int, int); + void plainInsert(MathAtom const &); /// - void GetPos(int & x, int & y); + void niceInsert(MathAtom const &); + /// + void delLine(); + /// in pixels from top of screen + void setPos(int x, int y); + /// in pixels from top of screen + void getPos(int & x, int & y); + /// current inset MathInset * par() const; - /// return the next enclosing par of the given type and the cursor's - //index in it - MathInset * enclosing(MathInsetTypes, int &) const; - /// - InsetFormulaBase const * formula(); - /// - int pos() const; - /// - void Interpret(string const &); - /// - void SetSize(MathStyles); + /// return the next enclosing grid inset and the cursor's index in it + MathGridInset * enclosingGrid(idx_type & idx) const; + /// return the next enclosing hull inset and the cursor's index in it + MathHullInset * enclosingHull(idx_type & idx) const; + /// go up to enclosing grid + void popToEnclosingGrid(); + /// go up to the hull inset + void popToEnclosingHull(); + /// + InsetFormulaBase * formula() const; + /// current offset in the current cell + pos_type pos() const; + /// current cell + idx_type idx() const; + /// size of current cell + size_type size() const; + /// + bool script(bool); + /// + bool interpret(string const &); + /// + bool interpret(char); /// bool toggleLimits(); - /// - // Macro mode methods - void MacroModeOpen(); - /// - void MacroModeClose(); - /// - bool InMacroMode() const; - + /// interpret name a name of a macro + void macroModeClose(); + /// are we currently typing the name of a macro? + bool inMacroMode() const; + /// get access to the macro we are currently typing + MathUnknownInset * activeMacro(); + /// get access to the macro we are currently typing + MathUnknownInset const * activeMacro() const; + /// are we currently typing '#1' or '#2' or...? + bool inMacroArgMode() const; + /// are we in math mode (1), text mode (-1) or unsure? + MathInset::mode_type currentMode() const; + // Local selection methods /// - bool Selection() const; - /// - void SelCopy(); + bool selection() const; /// - void SelCut(); + void selCopy(); /// - void SelDel(); + void selCut(); /// - void SelPaste(); + void selDel(); /// - void SelHandle(bool); + void selPaste(); /// - void SelStart(); + void selHandle(bool); /// - void SelClear(); + void selStart(); /// - void drawSelection(Painter & pain) const; + void selClear(); + /// clears or deletes selection depending on lyxrc setting + void selClearOrDel(); /// - void clearLastCode(); + void selGet(MathArray & ar); /// - void setLastCode(MathTextCodes t); + void drawSelection(MathPainterInfo & pain) const; /// - void handleFont(MathTextCodes t); - /// - void handleAccent(string const & name, int code); - /// - void handleDelim(int l, int r); - /// Splits cells and shifts right part to the next cell + void handleNest(MathAtom const & at); + /// splits cells and shifts right part to the next cell void splitCell(); - /// Splits line and insert new row of cell + /// splits line and insert new row of cell void breakLine(); + /// read contents of line into an array + void readLine(MathArray & ar) const; + /// remove this as soon as LyXFunc::getStatus is "localized" + string getLastCode() const { return "mathnormal"; } /// - MathTextCodes getLastCode() const; - /// - int idx() const { return cursor().idx_; } - /// - void idxNext(); - /// - void idxPrev(); - /// - void pullArg(); - /// - bool isInside(MathInset *) const; - /// - MathTextCodes nextCode() const; - /// - MathTextCodes prevCode() const; + bool isInside(MathInset const *) const; /// char valign() const; /// char halign() const; /// - int col() const; + col_type hullCol() const; /// - int row() const; - + row_type hullRow() const; /// - MathStyles style() const; - /// Make sure cursor position is valid - void normalize() const; - - /// Enter a new MathInset from the front or the back - void push(MathInset * par, bool first); - /// Leave current MathInset - bool pop(); - -//private: + col_type gridCol() const; /// - bool macro_mode; - - // Selection stuff - /// do we currently select - bool selection; + row_type gridRow() const; + /// make sure cursor position is valid + void normalize(); + /// mark current cursor trace for redraw + void touch(); /// - InsetFormulaBase * const formula_; - /// - MathTextCodes lastcode; + UpdatableInset * asHyperActiveInset() const; + + /// enter a MathInset + void push(MathAtom & par); + /// enter a MathInset from the front + void pushLeft(MathAtom & par); + /// enter a MathInset from the back + void pushRight(MathAtom & par); + /// leave current MathInset to the left + bool popLeft(); + /// leave current MathInset to the left + bool popRight(); /// MathArray & array() const; /// - MathXArray & xarray() const; + bool hasPrevAtom() const; + /// + bool hasNextAtom() const; + /// + MathAtom const & prevAtom() const; + /// + MathAtom & prevAtom(); + /// + MathAtom const & nextAtom() const; + /// + MathAtom & nextAtom(); - /// returns the first position of the (normalized) selection - MathCursorPos firstSelectionPos() const; - /// returns the last position of the (normalized) selection - MathCursorPos lastSelectionPos() const; /// returns the selection void getSelection(MathCursorPos &, MathCursorPos &) const; /// returns the normalized anchor of the selection MathCursorPos normalAnchor() const; - /// returns the normalized anchor of the selection - bool openable(MathInset *, bool selection, bool useupdown) const; - /// path of positions the cursor had to go if it were leving each inset - std::vector Cursor_; - /// path of positions the anchor had to go if it were leving each inset - std::vector Anchor_; - - /// reference to the last item of the path + /// reference to the last item of the path, i.e. "The Cursor" MathCursorPos & cursor(); - /// + /// reference to the last item of the path, i.e. "The Cursor" MathCursorPos const & cursor() const; + /// how deep are we nested? + unsigned depth() const; - - /// - int last() const; - /// - MathInset * parInset(int i) const; - /// + /// local dispatcher + int dispatch(string const & cmd); + /// describe the situation + string info() const; + /// dump selection information for debugging void seldump(char const * str) const; - /// + /// dump selection information for debugging void dump(char const * str) const; - + /// moves on + void setSelection(MathIterator const & where, size_type n); /// - int xpos() const; + void insert(char c); /// - void gotoX(int x); + void insert(string const & str); + /// lock/unlock inset + void insetToggle(); + + /// hack for reveal codes + void markInsert(); + void markErase(); + void handleExtern(string const & arg); /// - bool nextIsInset() const; - /// - bool prevIsInset() const; - /// - void merge(MathArray const & arr); - /// - MathInset * nextInset() const; + friend class Selection; + + +private: + /// injects content of a cell into parent + void pullArg(); + /// moves cursor index one cell to the left + bool idxLeft(); + /// moves cursor index one cell to the right + bool idxRight(); + /// moves cursor to beginning first cell of current line + bool idxLineFirst(); + /// moves cursor to end of last cell of current line + bool idxLineLast(); + /// moves cursor position one cell to the left + bool posLeft(); + /// moves cursor position one cell to the right + bool posRight(); + /// moves position somehow up or down + bool goUpDown(bool up); + /// moves position into box + bool bruteFind(int xo, int yo, int xlow, int xhigh, int ylow, int yhigh); + /// are we in a nucleus of a script inset? + bool inNucleus() const; + + + /// grab grid marked by anchor and current cursor + MathGridInset grabSelection() const; + /// erase the selected part and re-sets the cursor + void eraseSelection(); + /// guess what + MathGridInset grabAndEraseSelection(); + /// - MathInset * prevInset() const; + string macroName() const; /// - MathUpDownInset * nearbyUpDownInset() const; + MathInset::difference_type macroNamePos() const; + /// can we enter the inset? + bool openable(MathAtom const &, bool selection) const; + /// write access to cursor cell position + pos_type & pos(); + /// write access to cursor cell index + idx_type & idx(); - /// - MathFuncInset * imacro; + /// path of positions the cursor had to go if it were leaving each inset + MathIterator Cursor_; + /// path of positions the anchor had to go if it were leaving each inset + mutable MathIterator Anchor_; + /// pointer to enclsing LyX inset + InsetFormulaBase * formula_; + // Selection stuff + /// text code of last char entered + //MathTextCodes lastcode_; + /// do we allow autocorrection + bool autocorrect_; + /// do we currently select + bool selection_; + /// are we entering a macro name? + bool macromode_; + /// are we targeting a certain x coordinate, if so, which one? + int targetx_; }; extern MathCursor * mathcursor; +void releaseMathCursor(BufferView * bv); #endif