Fix borders of InsetMathGrid

* New virtual functions leftMargin() and rightMargin() to get rid of drawWithMargin() * Factor and rewrite code for borders. * Fix several offset calculations. Known issues: * Borders of multicols look too good and do not correspond to the pdf output. (non-regression) * Bounding box for Hull (Regexp) not pixel-perfect. * Bounding boxes of Diagram, XYmatrix, are too tight when there are borders. Also border should be disabled. (non-regression)
2024-12-22 21:21:32 +00:00 · 2016-09-29 20:20:33 +02:00 · 2016-09-29 20:20:33 +02:00 · 324e5571ca
commit 324e5571ca
parent 42a3035709
10 changed files with 80 additions and 104 deletions
--- a/src/mathed/InsetMathAMSArray.cpp
+++ b/src/mathed/InsetMathAMSArray.cpp
@ -88,7 +88,6 @@ void InsetMathAMSArray::metrics(MetricsInfo & mi, Dimension & dim) const
 	Changer dummy =
 		mi.base.changeStyle(LM_ST_TEXT, mi.base.style == LM_ST_DISPLAY);
 	InsetMathGrid::metrics(mi, dim);
-	dim.wid += 14;
 }


@ -101,7 +100,7 @@ void InsetMathAMSArray::draw(PainterInfo & pi, int x, int y) const
 	mathed_draw_deco(pi, x + dim.width() - 8, yy, 5, dim.height(), from_ascii(name_right()));
 	Changer dummy =
 		pi.base.changeStyle(LM_ST_TEXT, pi.base.style == LM_ST_DISPLAY);
-	InsetMathGrid::drawWithMargin(pi, x, y, 6, 8);
+	InsetMathGrid::draw(pi, x, y);
 }


--- a/src/mathed/InsetMathAMSArray.h
+++ b/src/mathed/InsetMathAMSArray.h
@ -54,6 +54,11 @@ public:
 	char const * name_left() const;
 	///
 	char const * name_right() const;
+	///
+	int leftMargin() const { return 6; } //override
+	///
+	int rightMargin() const { return 8; } //override
+
 private:
 	virtual Inset * clone() const;
 	///
--- a/src/mathed/InsetMathArray.cpp
+++ b/src/mathed/InsetMathArray.cpp
@ -77,15 +77,6 @@ void InsetMathArray::metrics(MetricsInfo & mi, Dimension & dim) const
 	Changer dummy =
 		mi.base.changeStyle(LM_ST_TEXT, mi.base.style == LM_ST_DISPLAY);
 	InsetMathGrid::metrics(mi, dim);
-	dim.wid += 6;
-}
-
-
-Dimension const InsetMathArray::dimension(BufferView const & bv) const
-{
-	Dimension dim = InsetMathGrid::dimension(bv);
-	dim.wid += 6;
-	return dim;
 }


@ -94,7 +85,7 @@ void InsetMathArray::draw(PainterInfo & pi, int x, int y) const
 	setPosCache(pi, x, y);
 	Changer dummy =
 		pi.base.changeStyle(LM_ST_TEXT, pi.base.style == LM_ST_DISPLAY);
-	InsetMathGrid::drawWithMargin(pi, x, y, 4, 2);
+	InsetMathGrid::draw(pi, x, y);
 }


--- a/src/mathed/InsetMathArray.h
+++ b/src/mathed/InsetMathArray.h
@ -31,8 +31,6 @@ public:
 	///
 	void metrics(MetricsInfo & mi, Dimension & dim) const;
 	///
-	Dimension const dimension(BufferView const &) const;
-	///
 	void draw(PainterInfo & pi, int x, int y) const;
 	///
 	InsetMathArray * asArrayInset() { return this; }
@ -51,6 +49,11 @@ public:
 	void validate(LaTeXFeatures & features) const;
 	///
 	InsetCode lyxCode() const { return MATH_ARRAY_CODE; }
+	///
+	int leftMargin() const { return 4; } //override
+	///
+	int rightMargin() const { return 2; } //override
+
 private:
 	virtual Inset * clone() const;
 	///
--- a/src/mathed/InsetMathCases.cpp
+++ b/src/mathed/InsetMathCases.cpp
@ -46,15 +46,6 @@ Inset * InsetMathCases::clone() const
 void InsetMathCases::metrics(MetricsInfo & mi, Dimension & dim) const
 {
 	InsetMathGrid::metrics(mi, dim);
-	dim.wid += 8;
-}
-
-
-Dimension const InsetMathCases::dimension(BufferView const & bv) const
-{
-	Dimension dim = InsetMathGrid::dimension(bv);
-	dim.wid += 8;
-	return dim;
 }


@ -62,7 +53,7 @@ void InsetMathCases::draw(PainterInfo & pi, int x, int y) const
 {
 	Dimension const dim = dimension(*pi.base.bv);
 	mathed_draw_deco(pi, x + 1, y - dim.ascent(), 6, dim.height(), from_ascii("{"));
-	InsetMathGrid::drawWithMargin(pi, x, y, 8, 0);
+	InsetMathGrid::draw(pi, x, y);
 	setPosCache(pi, x, y);
 }

--- a/src/mathed/InsetMathCases.h
+++ b/src/mathed/InsetMathCases.h
@ -27,8 +27,6 @@ public:
 	///
 	void metrics(MetricsInfo & mi, Dimension & dim) const;
 	///
-	Dimension const dimension(BufferView const &) const;
-	///
 	void draw(PainterInfo & pi, int x, int y) const;
 	///
 	virtual void doDispatch(Cursor & cur, FuncRequest & cmd);
@ -54,6 +52,11 @@ public:
 	InsetCode lyxCode() const { return MATH_CASES_CODE; }
 	///
 	int displayColSpace(col_type) const;
+	///
+	int leftMargin() const { return 8; } //override
+	///
+	int rightMargin() const { return 0; } //override
+
 private:
 	virtual Inset * clone() const;
 };
--- a/src/mathed/InsetMathGrid.cpp
+++ b/src/mathed/InsetMathGrid.cpp
@ -418,7 +418,6 @@ void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
 		rowinfo_[row].ascent_  = asc;
 		rowinfo_[row].descent_ = desc;
 	}
-	rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 	rowinfo_[nrows()].ascent_  = 0;
 	rowinfo_[nrows()].descent_ = 0;

@ -482,7 +481,7 @@ void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
 	colinfo_[ncols()].width_  = 0;

 	// compute horizontal offsets
-	colinfo_[0].offset_ = border();
+	colinfo_[0].offset_ = border() + colinfo_[0].lines_ * vlinesep();;
 	for (col_type col = 1; col <= ncols(); ++col) {
 		colinfo_[col].offset_ =
 			colinfo_[col - 1].offset_ +
@ -535,7 +534,7 @@ void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
 	dim.des = rowinfo_[nrows() - 1].offset_
 		+ rowinfo_[nrows() - 1].descent_
 		+ hlinesep() * rowinfo_[nrows()].lines_
-		+ border();
+		+ border() + 1;


 /*
@ -588,20 +587,38 @@ void InsetMathGrid::metrics(MetricsInfo & mi, Dimension & dim) const
 		cxrow->setBaseline(cxrow->getBaseline() - ascent);
 	}
 */
+	dim.wid += leftMargin() + rightMargin();
 	metricsMarkers2(dim);
 	// Cache the inset dimension.
 	setDimCache(mi, dim);
 }


-void InsetMathGrid::draw(PainterInfo & pi, int x, int y) const
+int InsetMathGrid::vLineHOffset(col_type col, unsigned int line) const
 {
-	drawWithMargin(pi, x, y, 1, 1);
+	if (col < ncols())
+		return leftMargin() + colinfo_[col].offset_
+			- (colinfo_[col].lines_ - line - 1) * vlinesep()
+			- vlinesep()/2 - colsep()/2;
+	else {
+		LASSERT(col == ncols(), return 0);
+		return leftMargin() + colinfo_[col-1].offset_ + colinfo_[col-1].width_
+			+ line * vlinesep()
+			+ vlinesep()/2 + colsep()/2;
+	}
 }


-void InsetMathGrid::drawWithMargin(PainterInfo & pi, int x, int y,
-	int lmargin, int rmargin) const
+int InsetMathGrid::hLineVOffset(row_type row, unsigned int line) const
+{
+	return rowinfo_[row].offset_
+		- rowinfo_[row].ascent_
+		- line * hlinesep()
+		- hlinesep()/2 - rowsep()/2;
+}
+
+
+void InsetMathGrid::draw(PainterInfo & pi, int x, int y) const
 {
 	Dimension const dim = dimension(*pi.base.bv);
 	BufferView const & bv = *pi.base.bv;
@ -609,68 +626,37 @@ void InsetMathGrid::drawWithMargin(PainterInfo & pi, int x, int y,
 	for (idx_type idx = 0; idx < nargs(); ++idx) {
 		if (cellinfo_[idx].multi_ != CELL_PART_OF_MULTICOLUMN) {
 			cell(idx).draw(pi,
-				x + lmargin + cellXOffset(bv, idx),
-				y + cellYOffset(idx));
+			               x + leftMargin() + cellXOffset(bv, idx),
+			               y + cellYOffset(idx));

-			// draw inner lines cell by cell because of possible multicolumns
-			// FIXME: multicolumn lines are not yet considered
-			row_type const r = row(idx);
-			col_type const c = col(idx);
-			if (r > 0 && r < nrows()) {
-				for (unsigned int i = 0; i < rowinfo_[r].lines_; ++i) {
-					int const yy = y + rowinfo_[r].offset_
-						- rowinfo_[r].ascent_
-						- i * hlinesep()
-						- hlinesep()/2 - rowsep()/2;
-					int const xx1 = x + lmargin + colinfo_[c].offset_;
-					int const xx2 = (c + 1 == ncols()) ?
-						// last column
-						xx1 + colinfo_[c].width_ :
-						// first columns
-						x + lmargin + colinfo_[c+1].offset_;
-					pi.pain.line(xx1, yy, xx2, yy, Color_foreground);
-				}
-			}
-			if (c > 0 && c < ncols()) {
+			row_type r = row(idx);
+			int const yy1 = y + hLineVOffset(r, 0);
+			int const yy2 = y + hLineVOffset(r + 1, rowinfo_[r + 1].lines_ - 1);
+			auto draw_left_borders = [&](col_type c) {
 				for (unsigned int i = 0; i < colinfo_[c].lines_; ++i) {
-					int const xx = x + lmargin
-						+ colinfo_[c].offset_
-						- i * vlinesep()
-						- vlinesep()/2 - colsep()/2;
-					int top_offset;
-					// prevRowHasLine needs to be changed if multicolumn lines are supported
-					bool const prevRowHasLine(r > 0);
-					if (prevRowHasLine)
-						// start from offset of previous row to create a continous line
-						top_offset = rowinfo_[r - 1].offset_ + rowinfo_[r - 1].descent_;
-					else
-						top_offset = rowinfo_[r].offset_- rowinfo_[r].ascent_;
-					pi.pain.line(xx, y + top_offset,
-						xx, y + rowinfo_[r].offset_ + rowinfo_[r].descent_,
-						Color_foreground);
+					int const xx = x + vLineHOffset(c, i);
+					pi.pain.line(xx, yy1, xx, yy2, Color_foreground);
 				}
-			}
+			};
+			col_type c = col(idx);
+			// Draw inner left borders cell-by-cell because of multicolumns
+			draw_left_borders(c);
+			// Draw the right border (only once)
+			if (c == 0)
+				draw_left_borders(ncols());
 		}
 	}

-	// draw outer lines in one go
-	for (row_type row = 0; row <= nrows(); row += nrows())
-		for (unsigned int i = 0; i < rowinfo_[row].lines_; ++i) {
-			int yy = y + rowinfo_[row].offset_ - rowinfo_[row].ascent_
-				- i * hlinesep() - hlinesep()/2 - rowsep()/2;
-			pi.pain.line(x + lmargin + 1, yy,
-				     x + dim.width() - rmargin - 1, yy,
-				     Color_foreground);
+	// Draw horizontal borders
+	for (row_type r = 0; r <= nrows(); ++r) {
+		int const xx1 = x + vLineHOffset(0, 0);
+		int const xx2 = x + vLineHOffset(ncols(), colinfo_[ncols()].lines_ - 1);
+		for (unsigned int i = 0; i < rowinfo_[r].lines_; ++i) {
+			int const yy = y + hLineVOffset(r, i);
+			pi.pain.line(xx1, yy, xx2, yy, Color_foreground);
 		}
+	}

-	for (col_type col = 0; col <= ncols(); col += ncols())
-		for (unsigned int i = 0; i < colinfo_[col].lines_; ++i) {
-			int xx = x + lmargin + colinfo_[col].offset_
-				- i * vlinesep() - vlinesep()/2 - colsep()/2;
-			pi.pain.line(xx, y - dim.ascent() + 1,
-				     xx, y + dim.descent() - 1,
-				     Color_foreground);
-		}
 	drawMarkers2(pi, x, y);
 }

@ -699,7 +685,6 @@ void InsetMathGrid::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
 		rowinfo_[row].ascent_  = asc;
 		rowinfo_[row].descent_ = desc;
 	}
-	//rowinfo_[0].ascent_       += hlinesep() * rowinfo_[0].lines_;
 	rowinfo_[nrows()].ascent_  = 0;
 	rowinfo_[nrows()].descent_ = 0;

--- a/src/mathed/InsetMathGrid.h
+++ b/src/mathed/InsetMathGrid.h
@ -103,9 +103,6 @@ public:
 	void metrics(MetricsInfo & mi, Dimension &) const;
 	///
 	void draw(PainterInfo & pi, int x, int y) const;
-	///
-	void drawWithMargin(PainterInfo & pi, int x, int y,
-		int lmargin = 0, int rmargin = 0) const;
 	/// draw decorations.
 	void drawDecoration(PainterInfo & pi, int x, int y) const
 	{ drawMarkers2(pi, x, y); }
@ -248,6 +245,11 @@ protected:
 	int cellYOffset(idx_type idx) const;
 	/// Width of cell, taking combined columns into account
 	int cellWidth(idx_type idx) const;
+	///
+	virtual int leftMargin() const { return 1; }
+	///
+	virtual int rightMargin() const { return 1; }
+
 	/// returns proper 'end of line' code for LaTeX
 	virtual docstring eolString(row_type row, bool fragile, bool latex,
 			bool last_eoln) const;
@ -269,6 +271,10 @@ protected:
 	/// The value of a fixed col spacing for a certain hull type
 	static int colSpace(HullType type, col_type col);

+	/// positions of vertical and horizontal lines
+	int vLineHOffset(col_type col, unsigned int line) const;
+	int hLineVOffset(row_type row, unsigned int line) const;
+
 	/// row info.
 	/// rowinfo_[nrows()] is a dummy row used only for hlines.
 	std::vector<RowInfo> rowinfo_;
@ -282,7 +288,7 @@ protected:

 private:
 	///
-	char v_align_; // add approp. type
+	char v_align_; // FIXME: add approp. type
 	///
 	Inset * clone() const;
 };
--- a/src/mathed/InsetMathTabular.cpp
+++ b/src/mathed/InsetMathTabular.cpp
@ -47,22 +47,13 @@ void InsetMathTabular::metrics(MetricsInfo & mi, Dimension & dim) const
 {
 	Changer dummy = mi.base.changeFontSet("textnormal");
 	InsetMathGrid::metrics(mi, dim);
-	dim.wid += 6;
-}
-
-
-Dimension const InsetMathTabular::dimension(BufferView const & bv) const
-{
-	Dimension dim = InsetMathGrid::dimension(bv);
-	dim.wid += 6;
-	return dim;
 }


 void InsetMathTabular::draw(PainterInfo & pi, int x, int y) const
 {
 	Changer dummy = pi.base.changeFontSet("textnormal");
-	InsetMathGrid::drawWithMargin(pi, x, y, 4, 2);
+	InsetMathGrid::draw(pi, x, y);
 }


--- a/src/mathed/InsetMathTabular.h
+++ b/src/mathed/InsetMathTabular.h
@ -29,8 +29,6 @@ public:
 	///
 	void metrics(MetricsInfo & mi, Dimension & dim) const;
 	///
-	Dimension const dimension(BufferView const &) const;
-	///
 	void draw(PainterInfo & pi, int x, int y) const;
 	///
 	InsetMathTabular * asTabularInset() { return this; }
@ -47,6 +45,10 @@ public:
 	void maple(MapleStream &) const;
 	///
 	InsetCode lyxCode() const { return MATH_TABULAR_CODE; }
+	///
+	int leftMargin() const { return 4; } //override
+	///
+	int rightMargin() const { return 2; } //override

 private:
 	Inset * clone() const;