multicell selection

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2255 a592a061-630c-0410-9148-cb99ea01b6c8

src/mathed/array.C

@@ -33,6 +33,14 @@ MathArray::MathArray(MathArray const & array)
 			replace(pos, nextInset(pos)->clone());
 }
 
+MathArray::MathArray(MathArray const & array, int from, int to)
+	: bf_(array.bf_.begin() + from, array.bf_.begin() + to)
+{
+	for (int pos = 0; pos < size(); next(pos)) 
+		if (isInset(pos)) 
+			replace(pos, nextInset(pos)->clone());
+}
+
 
 bool MathArray::next(int & pos) const
 {
@@ -209,6 +217,12 @@ int MathArray::size() const
 }
 
 
+void MathArray::erase()
+{
+	erase(0, size());
+}
+
+
 void MathArray::erase(int pos)
 {
 	if (pos < static_cast<int>(bf_.size()))

src/mathed/array.h

@@ -47,6 +47,8 @@ public:
 	///
 	MathArray(MathArray const &);
 	///
+	MathArray(MathArray const &, int from, int to);
+	///
 	MathArray & operator=(MathArray const &);
 	///
 	~MathArray();
@@ -72,6 +74,8 @@ public:
 	///
 	void erase(int pos);
 	///
+	void erase();
+	///
 	void replace(int pos, MathInset * inset);
 	///
 	bool prev(int & pos) const;

src/mathed/formula.C

@@ -134,13 +134,7 @@ void InsetFormula::draw(BufferView * bv, LyXFont const &,
 	pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
 
 	if (mathcursor && mathcursor->formula() == this) {
-		if (mathcursor->Selection()) {
-			int xp[10];
-			int yp[10];
-			int n;
-			mathcursor->SelGetArea(xp, yp, n);
-			pain.fillPolygon(xp, yp, n, LColor::selection);
-		}
+		mathcursor->drawSelection(pain);
 		pain.rectangle(x, y - a, w, h, LColor::mathframe);
 	}
 
@@ -172,7 +166,11 @@ InsetFormula::localDispatch(BufferView * bv, kb_action action,
 
 		case LFUN_BREAKLINE: 
 			bv->lockedInsetStoreUndo(Undo::INSERT);
+			int x;
+			int y;
+			mathcursor->GetPos(x, y);
 			mathcursor->breakLine();
+			mathcursor->normalize();
 			updateLocal(bv);
 			break;
 
@@ -332,17 +330,18 @@ void InsetFormula::validate(LaTeXFeatures & features) const
 
 int InsetFormula::ascent(BufferView *, LyXFont const &) const
 {
-	return par()->ascent();
+	return par()->ascent() + 1;
 }
 
 
 int InsetFormula::descent(BufferView *, LyXFont const &) const
 {
-	return par()->descent();
+	return par()->descent() + 1;
 }
 
 
 int InsetFormula::width(BufferView *, LyXFont const &) const
 {
-	return par()->width();
+	Metrics();
+	return par()->width() + 2;
 }

src/mathed/formulabase.C

@@ -306,7 +306,7 @@ void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 	if (!bv->lockInset(this))
 		lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 
-	par_->Metrics(LM_ST_TEXT);
+	Metrics();
 	//bv->updateInset(this, false);
 	if (x == 0)
 		mathcursor->first();
@@ -408,11 +408,17 @@ vector<string> const InsetFormulaBase::getLabelList() const
 
 void InsetFormulaBase::updateLocal(BufferView * bv)
 {
-	par_->Metrics(LM_ST_TEXT);
+	Metrics();
 	bv->updateInset(this, true);
 }
 
 
+void InsetFormulaBase::Metrics() const
+{
+	const_cast<MathInset *>(par_)->Metrics(LM_ST_TEXT);
+}
+
+
 void InsetFormulaBase::insetButtonRelease(BufferView * bv,
 					  int x, int y, int /*button*/)
 {

src/mathed/formulabase.h

@@ -115,6 +115,8 @@ public:
 	virtual std::vector<string> const getLabelList() const;
 	///
 	MathInset * par() const;
+	///
+	virtual void Metrics() const;
 protected:
 	///
 	virtual void updateLocal(BufferView * bv);

src/mathed/formulamacro.C

@@ -143,13 +143,8 @@ void InsetFormulaMacro::draw(BufferView * bv, LyXFont const & f,
 	pain.fillRectangle(int(x), y , w, h, LColor::mathmacrobg);
 	pain.rectangle(int(x), y, w, h, LColor::mathframe);
 
-	if (mathcursor && mathcursor->formula() == this && mathcursor->Selection()) {
-		int xp[10];
-		int yp[10];
-		int n;
-		mathcursor->SelGetArea(xp, yp, n);
-		pain.fillPolygon(xp, yp, n, LColor::selection);
-	}
+	if (mathcursor && mathcursor->formula() == this)
+		mathcursor->drawSelection(pain);
 
 	pain.text(int(x + 2), baseline, prefix(), font);
 	x += width(bv, font);

src/mathed/math_cursor.h

@@ -29,6 +29,38 @@ class MathUpDownInset;
 class InsetFormulaBase;
 class MathArray;
 class MathXArray;
+class Painter;
+
+/// 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();
+};
+
 
 /// This is the external interface of Math's subkernel
 class MathCursor {
@@ -40,6 +72,8 @@ public:
 	///
 	void insert(MathInset *);
 	///
+	void insert(MathArray const &);
+	///
 	void Home();
 	///
 	void End();
@@ -108,7 +142,7 @@ public:
 	///
 	void SelClear();
 	///
-	void SelGetArea(int * xp, int * yp, int & n);
+	void drawSelection(Painter & pain) const;
 	///
 	void clearLastCode();
 	///
@@ -126,7 +160,7 @@ public:
 	///
 	MathTextCodes getLastCode() const;
 	///
-	int idx() const { return cursor_.idx_; }
+	int idx() const { return cursor().idx_; }
 	///
 	void idxNext();
 	///
@@ -148,7 +182,17 @@ public:
 	///
 	int row() const;
 
-//protected:
+	///
+	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:
 	///
 	bool macro_mode;
 	
@@ -166,36 +210,26 @@ public:
 	///
 	MathXArray & xarray() 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:
-	/// Description of a position 
-	struct MathIter {
-		/// inset
-		MathInset * par_;
-		/// cell inset
-		int idx_;
-		///
-		int pos_;
-	};
+	/// 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<MathIter> path_;
+	std::vector<MathCursorPos> Cursor_;
+	/// path of positions the anchor had to go if it were leving each inset
+	std::vector<MathCursorPos> Anchor_;
 
 	/// reference to the last item of the path
-	MathIter anchor_;
+	MathCursorPos & cursor();
 	///
-	MathIter cursor_;
-	///
-	int path_idx_;
+	MathCursorPos const & cursor() const;
 
 
 	///  

src/mathed/math_grid.C

@@ -245,9 +245,6 @@ void MathGridInset::delRow(int row)
 	if (nrows() == 1)
 		return;
 
-	lyxerr << "delRow: nr: " << nrows() << "  nc: " << ncols()
-		<< "  row: " << row << "\n";
-
 	cells_type::iterator it = cells_.begin() + row * ncols(); 
 	cells_.erase(it, it + ncols());
 
@@ -389,6 +386,22 @@ void MathGridInset::idxDelete(int & idx, bool & popit, bool & deleteit)
 }
 
 
+void MathGridInset::idxDeleteRange(int from, int to)
+{
+// leave this unimplemented unless someone wants to have it.
+/*
+	int n = (to - from) / ncols();
+	int r = from / ncols();
+
+	if (n >= 1) {
+		cells_type::iterator it = cells_.begin() + from;
+		cells_.erase(it, it + n * ncols());
+		rowinfo_.erase(rowinfo_.begin() + r, rowinfo_.begin() + r + n);
+	}
+*/
+}
+
+
 MathGridInset::RowInfo const & MathGridInset::rowinfo(int i) const
 {
 	return rowinfo_[i];
@@ -399,3 +412,17 @@ MathGridInset::RowInfo & MathGridInset::rowinfo(int i)
 {
 	return rowinfo_[i];
 }
+
+
+std::vector<int> MathGridInset::idxBetween(int from, int to) const
+{
+	int r1 = std::min(row(from), row(to));
+	int r2 = std::max(row(from), row(to));
+	int c1 = std::min(col(from), col(to));
+	int c2 = std::max(col(from), col(to));
+	std::vector<int> res;
+	for (int i = r1; i <= r2; ++i)
+		for (int j = c1; j <= c2; ++j)
+			res.push_back(index(i, j));
+	return res;
+}

src/mathed/math_grid.h

@@ -101,6 +101,8 @@ public:
 	bool idxLast(int &, int &) const;
 	///
 	void idxDelete(int &, bool &, bool &);
+	///
+	void idxDeleteRange(int, int);
 			
 	///
 	void addRow(int);
@@ -114,6 +116,8 @@ public:
 	virtual void appendRow();
 	///
 	int index(int row, int col) const;
+	///
+	std::vector<int> idxBetween(int from, int to) const;
 
 protected:
 	/// row info

src/mathed/math_inset.C

@@ -284,6 +284,9 @@ void MathInset::idxDelete(int &, bool & popit, bool & deleteit)
 	deleteit = false;
 }
 
+void MathInset::idxDeleteRange(int, int)
+{}
+
 
 bool MathInset::idxLastUp(int &, int &) const
 {
@@ -363,3 +366,11 @@ void MathInset::Validate(LaTeXFeatures & features) const
 	for (int i = 0; i < nargs(); ++i)
 		cell(i).Validate(features);
 }
+
+std::vector<int> MathInset::idxBetween(int from, int to) const
+{
+	std::vector<int> res;
+	for (int i = from; i <= to; ++i)
+		res.push_back(i);
+	return res;
+}

src/mathed/math_inset.h

@@ -126,6 +126,11 @@ public:
 	// the return value indicates whether the cursor should leave the inset
 	// and/or the whole inset should be deleted
 	virtual void idxDelete(int & idx, bool & popit, bool & deleteit);
+	// deletes a cell range and moves the cursor 
+	virtual void idxDeleteRange(int from, int to);
+	// returns list of cell indices that are "between" from and to for
+	// selction purposes
+	virtual std::vector<int> idxBetween(int from, int to) const;
 
 	///
 	int nargs() const;