#ifndef CURSOR_H
#define CURSOR_H
-#include "textcursor.h"
-
-#include "support/types.h"
+#include "cursor_slice.h"
+#include <iosfwd>
#include <vector>
class BufferView;
class UpdatableInset;
+class MathAtom;
class DispatchResult;
class FuncRequest;
-class LyXText;
class InsetTabular;
+class LyXText;
+class Paragraph;
+
+
+// these should go
+class MathHullInset;
+class PainterInfo;
+class MathUnknownInset;
+class MathGridInset;
+
+// this is used for traversing math insets
+typedef std::vector<CursorSlice> CursorBase;
+/// move on one step
+void increment(CursorBase &);
+///
+CursorBase ibegin(InsetBase * p);
+///
+CursorBase iend(InsetBase * p);
/**
* The cursor class describes the position of a cursor within a document.
*/
-class CursorItem {
+class LCursor {
public:
+ /// type for cell number in inset
+ typedef CursorSlice::idx_type idx_type;
+ /// type for paragraph numbers positions within a cell
+ typedef CursorSlice::par_type par_type;
+ /// type for cursor positions within a cell
+ typedef CursorSlice::pos_type pos_type;
+ /// type for row indices
+ typedef CursorSlice::row_type row_type;
+ /// type for col indices
+ typedef CursorSlice::col_type col_type;
+
+ /// create the cursor of a BufferView
+ explicit LCursor(BufferView & bv);
+ /// dispatch from innermost inset upwards
+ DispatchResult dispatch(FuncRequest const & cmd);
+ /// add a new cursor slice
+ void push(InsetBase * inset);
+ /// add a new cursor slice, place cursor on left end
+ void pushLeft(InsetBase * inset);
+ /// pop one level off the cursor
+ void pop();
+ /// pop one slice off the cursor stack and go left
+ bool popLeft();
+ /// pop one slice off the cursor stack and go right
+ bool popRight();
+ /// restrict cursor nesting to given size
+ void pop(int depth);
+ /// access to current cursor slice
+ CursorSlice & current();
+ /// access to current cursor slice
+ CursorSlice const & current() const;
+ /// how many nested insets do we have?
+ size_t depth() const { return cursor_.size(); }
+ /// depth of current slice
+ int currentDepth() const { return current_; }
+
+ //
+ // selection
+ //
+ /// selection active?
+ bool selection() const { return selection_; }
+ /// selection active?
+ bool & selection() { return selection_; }
+ /// did we place the anchor?
+ bool mark() const { return mark_; }
+ /// did we place the anchor?
+ bool & mark() { return mark_; }
///
- CursorItem() : inset_(0), par_(0), pos_(0) {}
+ void setSelection();
+ /// set selection at given position
+ void setSelection(CursorBase const & where, size_t n);
///
- explicit CursorItem(UpdatableInset * inset)
- : inset_(inset), par_(0), pos_(0)
- {}
+ void clearSelection();
+ /// access start of selection
+ CursorSlice & selBegin();
+ /// access start of selection
+ CursorSlice const & selBegin() const;
+ /// access end of selection
+ CursorSlice & selEnd();
+ /// access end of selection
+ CursorSlice const & selEnd() const;
///
- LyXText * text() const;
+ std::string grabSelection();
///
- friend std::ostream & operator<<(std::ostream &, CursorItem const &);
-public:
+ void eraseSelection();
///
- UpdatableInset * inset_;
+ std::string grabAndEraseSelection();
+ // other selection methods
///
- int par_;
+ void selCopy();
///
- int pos_;
-};
+ void selCut();
+ ///
+ void selDel();
+ /// pastes n-th element of cut buffer
+ void selPaste(size_t n);
+ ///
+ void selHandle(bool selecting);
+ /// start selection
+ void selStart();
+ /// clear selection
+ void selClear();
+ /// clears or deletes selection depending on lyxrc setting
+ void selClearOrDel();
+ ///
+ void paste(std::string const & data);
+ //
+ // access to the 'current' cursor slice
+ //
+ /// the containing inset
+ InsetBase * inset() const { return current().inset(); }
+ /// return the cell of the inset this cursor is in
+ idx_type idx() const { return current().idx(); }
+ /// return the cell of the inset this cursor is in
+ idx_type & idx() { return current().idx(); }
+ /// return the last possible cell in this inset
+ idx_type lastidx() const { return current().lastidx(); }
+ /// return the paragraph this cursor is in
+ par_type par() const { return current().par(); }
+ /// return the paragraph this cursor is in
+ par_type & par() { return current().par(); }
+ /// return the last possible paragraph in this inset
+ par_type lastpar() const;
+ /// return the position within the paragraph
+ pos_type pos() const { return current().pos(); }
+ /// return the position within the paragraph
+ pos_type & pos() { return current().pos(); }
+ /// return the last position within the paragraph
+ pos_type lastpos() const;
+ /// return the display row of the cursor with in the current par
+ row_type crow() const;
+ /// return the display row of the cursor with in the current par
+ row_type lastcrow() const;
-class LCursor {
-public:
- /// create 'empty' cursor
- explicit LCursor(BufferView * bv);
- /// dispatch from innermost inset upwards
- DispatchResult dispatch(FuncRequest const & cmd);
+ /// return the number of embedded cells
+ size_t nargs() const;
+ /// return the number of embedded cells
+ size_t ncols() const;
+ /// return the number of embedded cells
+ size_t nrows() const;
+ /// return the grid row of the current cell
+ row_type row() const;
+ /// return the grid row of the current cell
+ col_type col() const;
+ /// the inset just behind the cursor
+ InsetBase * nextInset();
+ /// the inset just in front of the cursor
+ InsetBase * prevInset();
+
+ //
+ // math-specific part
+ //
+ /// return the mathed cell this cursor is in
+ MathArray const & cell() const;
+ /// return the mathed cell this cursor is in
+ MathArray & cell();
+ /// the mathatom left of the cursor
+ MathAtom const & prevAtom() const;
+ /// the mathatom left of the cursor
+ MathAtom & prevAtom();
+ /// the mathatom right of the cursor
+ MathAtom const & nextAtom() const;
+ /// the mathatom right of the cursor
+ MathAtom & nextAtom();
+ /// auto-correct mode
+ bool autocorrect() const { return autocorrect_; }
+ /// auto-correct mode
+ bool & autocorrect() { return autocorrect_; }
+ /// are we entering a macro name?
+ bool macromode() const { return macromode_; }
+ /// are we entering a macro name?
+ bool & macromode() { return macromode_; }
+
+ //
+ // text-specific part
///
- void push(UpdatableInset * inset);
- /// restrict cursor nesting to given size
- void pop(int depth);
- /// pop one level off the cursor
- void pop();
+ bool boundary() const { return current().boundary(); }
///
- UpdatableInset * innerInset() const;
+ bool & boundary() { return current().boundary(); }
///
- UpdatableInset * innerInsetOfType(int code) const;
+ Paragraph & paragraph();
+ ///
+ Paragraph const & paragraph() const;
+ ///
+ LyXText * text() const;
+ ///
+ InsetBase * innerInsetOfType(int code) const;
///
InsetTabular * innerInsetTabular() const;
///
LyXText * innerText() const;
+ ///
+ CursorSlice const & innerTextSlice() const;
/// returns x,y position
void getPos(int & x, int & y) const;
- ///
- friend std::ostream & operator<<(std::ostream &, LCursor const &);
+ /// returns cursor dimension
+ void getDim(int & asc, int & desc) const;
+
+ //
+ // common part
+ //
+ /// move one step to the left
+ bool posLeft();
+ /// move one step to the right
+ bool posRight();
+
+ /// write acess to target x position of cursor
+ int & x_target();
+ /// return target x position of cursor
+ int x_target() const;
+ /// clear target x position of cursor
+ void clearTargetX();
+
+ /// access to selection anchor
+ CursorSlice & anchor();
+ /// access to selection anchor
+ CursorSlice const & anchor() const;
+ /// cache the absolute coordinate from the top inset
+ void updatePos();
+ /// sets anchor to cursor position
+ void resetAnchor();
+ /// access to owning BufferView
+ BufferView & bv() const;
+ /// get some interesting description of current position
+ void info(std::ostream & os);
+ /// are we in math mode (2), text mode (1) or unsure (0)?
+ int currentMode();
+ /// reset cursor
+ void reset();
+
+ /// output
+ friend std::ostream & operator<<(std::ostream & os, LCursor const & cur);
public:
+//private:
/// mainly used as stack, but wee need random access
- std::vector<CursorItem> data_;
+ std::vector<CursorSlice> cursor_;
+ /// the anchor position
+ std::vector<CursorSlice> anchor_;
+
+private:
///
BufferView * bv_;
+ /// current slice
+ int current_;
+ ///
+ int cached_y_;
+ /**
+ * The target x position of the cursor. This is used for when
+ * we have text like :
+ *
+ * blah blah blah blah| blah blah blah
+ * blah blah blah
+ * blah blah blah blah blah blah
+ *
+ * When we move onto row 3, we would like to be vertically aligned
+ * with where we were in row 1, despite the fact that row 2 is
+ * shorter than x()
+ */
+ int x_target_;
+ // do we have a selection?
+ bool selection_;
+ // are we on the way to get one?
+ bool mark_;
+
+ //
+ // math specific stuff that could be promoted to "global" later
+ //
+ /// do we allow autocorrection
+ bool autocorrect_;
+ /// are we entering a macro name?
+ bool macromode_;
+
+
+///////////////////////////////////////////////////////////////////
+//
+// The part below is the non-integrated rest of the original math
+// cursor. This should be either generalized for texted or moved
+// back to the math insets.
+//
+///////////////////////////////////////////////////////////////////
+
+public:
+ ///
+ void insert(MathAtom const &);
+ ///
+ void insert(MathArray const &);
+ ///
+ void insert2(std::string const &);
+ /// return false for empty math insets
+ bool erase();
+ /// return false for empty math insets
+ bool backspace();
+ /// called for LFUN_HOME etc
+ bool home();
+ /// called for LFUN_END etc
+ bool end();
+ /// called for LFUN_RIGHT and LFUN_RIGHTSEL
+ bool right();
+ /// called for LFUN_LEFT etc
+ bool left();
+ /// called for LFUN_UP etc
+ bool up();
+ /// called for LFUN_DOWN etc
+ bool down();
+ ///
+ void plainErase();
+ ///
+ void plainInsert(MathAtom const & at);
+ ///
+ void niceInsert(MathAtom const & at);
+ ///
+ void niceInsert(std::string const & str);
+
+ /// in pixels from top of screen
+ void setScreenPos(int x, int y);
+ /// in pixels from left of screen
+ int targetX() const;
+ /// return the next enclosing grid inset and the cursor's index in it
+ MathGridInset * enclosingGrid(idx_type & idx) const;
+ /// adjust anchor position after deletions/insertions
+ void adjust(pos_type from, int diff);
+ ///
+ MathHullInset * formula() const;
+ /// current offset in the current cell
+ ///
+ bool script(bool);
+ ///
+ bool interpret(char);
+ /// 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();
+ /// are we currently typing '#1' or '#2' or...?
+ bool inMacroArgMode() const;
+
+ /// replace selected stuff with at, placing the former
+ // selection in given cell of atom
+ void handleNest(MathAtom const & at, int cell = 0);
+ /// remove this as soon as LyXFunc::getStatus is "localized"
+ //inline std::string getLastCode() { return "mathnormal"; }
+ ///
+ bool isInside(InsetBase const *);
+ ///
+ char valign();
+ ///
+ char halign();
+
+ /// make sure cursor position is valid
+ void normalize();
+ /// mark current cursor trace for redraw
+ void touch();
+
+ /// returns the normalized anchor of the selection
+ CursorSlice normalAnchor();
+
+ ///
+ void insert(char c);
+ ///
+ void insert(std::string const & str);
+ /// lock/unlock inset
+ void lockToggle();
+
+ /// hack for reveal codes
+ void markInsert();
+ void markErase();
+ /// injects content of a cell into parent
+ void pullArg();
+ /// split font inset etc
+ void handleFont(std::string const & font);
+
+ void releaseMathCursor();
+ /// are we in mathed?
+ bool inMathed() const;
+
+ /// display a message
+ void message(std::string const & msg) const;
+ /// display an error message
+ void errorMessage(std::string const & msg) const;
+
+private:
+ /// moves cursor index one cell to the left
+ bool idxLeft();
+ /// moves cursor index one cell to the right
+ bool idxRight();
+ /// moves cursor to end of last cell of current line
+ bool idxLineLast();
+ /// moves position somehow up or down
+ bool goUpDown(bool up);
+ /// moves position closest to (x, y) in given box
+ bool bruteFind(int x, int y, int xlow, int xhigh, int ylow, int yhigh);
+ /// moves position closest to (x, y) in current cell
+ void bruteFind2(int x, int y);
+ /// are we in a nucleus of a script inset?
+ bool inNucleus();
+
+ /// the name of the macro we are currently inputting
+ std::string macroName();
+ /// where in the curent cell does the macro name start?
+ int macroNamePos();
+ /// can we enter the inset?
+ bool openable(MathAtom const &);
};
#endif // LYXCURSOR_H
projects / lyx.git / blobdiff