X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Frowpainter.cpp;h=d9e41253e62d56983d1f73525f8b93d3a5699c6d;hb=848c89564fce9c4bfec79b915746dc6bc47abc3d;hp=5f0f6c53306b793f3aac67cb71227d99c3e131eb;hpb=897436efbb9bd641b61467d185a2dfae9839e575;p=lyx.git

diff --git a/src/rowpainter.cpp b/src/rowpainter.cpp
index 5f0f6c5330..d9e41253e6 100644
--- a/src/rowpainter.cpp
+++ b/src/rowpainter.cpp
@@ -13,6 +13,7 @@
 
 #include "rowpainter.h"
 
+#include "Bidi.h"
 #include "Buffer.h"
 #include "CoordCache.h"
 #include "Cursor.h"
@@ -66,7 +67,7 @@ class RowPainter {
 public:
 	/// initialise and run painter
 	RowPainter(PainterInfo & pi, Text const & text,
-		pit_type pit, Row const & row, int x, int y);
+		pit_type pit, Row const & row, Bidi & bidi, int x, int y);
 
 	// paint various parts
 	void paintAppendix();
@@ -113,6 +114,11 @@ private:
 	ParagraphMetrics const & pm_;
 	int max_width_;
 
+	/// bidi cache, comes from outside the rowpainter because
+	/// rowpainters are normally created in a for loop and there only
+	/// one of them is active at a time.
+	Bidi & bidi_;
+
 	/// is row erased? (change tracking)
 	bool erased_;
 
@@ -128,17 +134,18 @@ private:
 
 
 RowPainter::RowPainter(PainterInfo & pi,
-	Text const & text, pit_type pit, Row const & row, int x, int y)
+	Text const & text, pit_type pit, Row const & row, Bidi & bidi, int x, int y)
 	: bv_(*pi.base.bv), pain_(pi.pain), text_(text),
 	  text_metrics_(pi.base.bv->textMetrics(&text)),
 	  pars_(text.paragraphs()),
 	  row_(row), pit_(pit), par_(text.paragraphs()[pit]),
 	  pm_(text_metrics_.parMetrics(pit)),
 	  max_width_(bv_.workWidth()),
-	  erased_(pi.erased_),
+		bidi_(bidi), erased_(pi.erased_),
 	  xo_(x), yo_(y), width_(text_metrics_.width())
 {
 	RowMetrics m = text_metrics_.computeRowMetrics(pit_, row_);
+	bidi_.computeTables(par_, *bv_.buffer(), row_);
 	x_ = m.x + xo_;
 
 	//lyxerr << "RowPainter: x: " << x_ << " xo: " << xo_ << " yo: " << yo_ << endl;
@@ -180,7 +187,7 @@ void RowPainter::paintInset(pos_type const pos, Font const & font)
 	pi.base.font = inset->noFontChange() ?
 		bv_.buffer()->params().getFont() :
 		font;
-	pi.ltr_pos = (text_.bidi.level(pos) % 2 == 0);
+	pi.ltr_pos = (bidi_.level(pos) % 2 == 0);
 	pi.erased_ = erased_ || par_.isDeleted(pos);
 #ifdef DEBUG_METRICS
 	int const x1 = int(x_);
@@ -233,7 +240,7 @@ void RowPainter::paintInset(pos_type const pos, Font const & font)
 
 void RowPainter::paintHebrewComposeChar(pos_type & vpos, Font const & font)
 {
-	pos_type pos = text_.bidi.vis2log(vpos);
+	pos_type pos = bidi_.vis2log(vpos);
 
 	docstring str;
 
@@ -267,7 +274,7 @@ void RowPainter::paintHebrewComposeChar(pos_type & vpos, Font const & font)
 
 void RowPainter::paintArabicComposeChar(pos_type & vpos, Font const & font)
 {
-	pos_type pos = text_.bidi.vis2log(vpos);
+	pos_type pos = bidi_.vis2log(vpos);
 	docstring str;
 
 	// first char
@@ -299,7 +306,7 @@ void RowPainter::paintChars(pos_type & vpos, Font const & font,
 			    bool hebrew, bool arabic)
 {
 	// This method takes up 70% of time when typing
-	pos_type pos = text_.bidi.vis2log(vpos);
+	pos_type pos = bidi_.vis2log(vpos);
 	pos_type const end = row_.endpos();
 	FontSpan const font_span = par_.fontSpan(pos);
 	Change::Type const prev_change = par_.lookupChange(pos).type;
@@ -311,12 +318,16 @@ void RowPainter::paintChars(pos_type & vpos, Font const & font,
 
 	if (arabic) {
 		char_type c = str[0];
+		if (c == '(')
+			c = ')';
+		else if (c == ')')
+			c = '(';
 		str[0] = par_.transformChar(c, pos);
 	}
 
 	// collect as much similar chars as we can
 	for (++vpos ; vpos < end ; ++vpos) {
-		pos = text_.bidi.vis2log(vpos);
+		pos = bidi_.vis2log(vpos);
 		if (pos < font_span.first || pos > font_span.last)
 			break;
 
@@ -355,6 +366,10 @@ void RowPainter::paintChars(pos_type & vpos, Font const & font,
 		*/
 
 		if (arabic) {
+			if (c == '(')
+				c = ')';
+			else if (c == ')')
+				c = '(';
 			c = par_.transformChar(c, pos);
 			/* see comment in hebrew, explaining why we break */
 			break;
@@ -395,7 +410,7 @@ void RowPainter::paintForeignMark(double orig_x, Font const & font, int desc)
 
 void RowPainter::paintFromPos(pos_type & vpos)
 {
-	pos_type const pos = text_.bidi.vis2log(vpos);
+	pos_type const pos = bidi_.vis2log(vpos);
 	Font orig_font = text_.getFont(*bv_.buffer(), par_, pos);
 
 	double const orig_x = x_;
@@ -414,7 +429,8 @@ void RowPainter::paintFromPos(pos_type & vpos)
 	// special case languages
 	std::string const & lang = orig_font.language()->lang();
 	bool const hebrew = lang == "hebrew";
-	bool const arabic = lang == "arabic";
+	bool const arabic = lang == "arabic_arabtex" || lang == "arabic_arabi" || 
+						lang == "farsi";
 
 	// draw as many chars as we can
 	if ((!hebrew && !arabic)
@@ -455,7 +471,8 @@ void RowPainter::paintChangeBar()
 
 void RowPainter::paintAppendix()
 {
-	if (!par_.params().appendix())
+	// only draw the appendix frame once (for the main text)
+	if (!par_.params().appendix() || !text_.isMainText(*bv_.buffer()))
 		return;
 
 	int y = yo_ - row_.ascent();
@@ -718,6 +735,12 @@ void RowPainter::paintLast()
 void RowPainter::paintText()
 {
 	pos_type const end = row_.endpos();
+	// Spaces at logical line breaks in bidi text must be skipped during 
+	// painting. However, they may appear visually in the middle
+	// of a row; they must be skipped, wherever they are...
+	// * logically "abc_[HEBREW_\nHEBREW]"
+	// * visually "abc_[_WERBEH\nWERBEH]"
+	pos_type skipped_sep_vpos = -1;
 	pos_type body_pos = par_.beginOfBody();
 	if (body_pos > 0 &&
 		(body_pos > end || !par_.isLineSeparator(body_pos - 1))) {
@@ -735,11 +758,22 @@ void RowPainter::paintText()
 	Font font;
 	Buffer const & buffer = *bv_.buffer();
 
+	// If the last logical character is a separator, don't paint it, unless
+	// it's in the last row of a paragraph; see skipped_sep_vpos declaration
+	if (end > 0 && end < par_.size() && par_.isSeparator(end - 1))
+		skipped_sep_vpos = bidi_.log2vis(end - 1);
+	
 	for (pos_type vpos = row_.pos(); vpos < end; ) {
 		if (x_ > bv_.workWidth())
 			break;
 
-		pos_type const pos = text_.bidi.vis2log(vpos);
+		// Skip the separator at the logical end of the row
+		if (vpos == skipped_sep_vpos) {
+			++vpos;
+			continue;
+		}
+
+		pos_type const pos = bidi_.vis2log(vpos);
 
 		if (pos >= par_.size()) {
 			++vpos;
@@ -884,13 +918,21 @@ bool inNarrowInset(PainterInfo & pi)
 {
 	// check whether the current inset is nested in a non-wide inset
 	Cursor & cur = pi.base.bv->cursor();
-	for (int i = cur.depth() - 1; --i >= 0; ) {
+	Inset const * cur_in = &cur.inset();
+	// check all higher nested insets
+	for (size_type i = 1; i < cur.depth(); ++i) {
 		Inset * const in = &cur[i].inset();
-		if (in) {
+		if (in == cur_in)
+			// we reached the level of the current inset, so stop
+			return false;
+		else if (in) {
+			if (in->hasFixedWidth())
+				return true;
 			InsetText * t =
 				const_cast<InsetText *>(in->asTextInset());
-			if (t)
-				return !t->wide();
+			if (t && !t->wide())
+				// OK, we are in a non-wide() inset
+				return true;
 		}
 	}
 	return false;
@@ -914,6 +956,8 @@ void paintPar
 	RowList::const_iterator const rb = pm.rows().begin();
 	RowList::const_iterator const re = pm.rows().end();
 
+	Bidi bidi;
+
 	y -= rb->ascent();
 	size_type rowno = 0;
 	for (RowList::const_iterator rit = rb; rit != re; ++rit, ++rowno) {
@@ -960,11 +1004,11 @@ void paintPar
 				&& y - rit->ascent() < ww);
 			// it is not needed to draw on screen if we are not inside.
 			pi.pain.setDrawingEnabled(inside);
-			RowPainter rp(pi, text, pit, *rit, x, y);
+			RowPainter rp(pi, text, pit, *rit, bidi, x, y);
 			// Clear background of this row
 			// (if paragraph background was not cleared)
 			if (!repaintAll &&
-			    (!(in_inset_alone_on_row && leftEdgeFixed)
+			    (!(in_inset_alone_on_row && leftEdgeFixed && !inNarrowIns)
 				|| row_has_changed)) {
 				pi.pain.fillRectangle(x, y - rit->ascent(),
 				    rp.maxWidth(), rit->height(),
@@ -1044,12 +1088,12 @@ void paintText(BufferView & bv,
 
 	// and grey out above (should not happen later)
 //	lyxerr << "par ascent: " << text.getPar(vi.p1).ascent() << endl;
-	if (vi.y1 > 0 && vi.update_strategy != SingleParUpdate)
+	if (vi.y1 > 0 && vi.update_strategy == FullScreenUpdate)
 		pain.fillRectangle(0, 0, bv.workWidth(), vi.y1, Color::bottomarea);
 
 	// and possibly grey out below
 //	lyxerr << "par descent: " << text.getPar(vi.p1).ascent() << endl;
-	if (vi.y2 < bv.workHeight() && vi.update_strategy != SingleParUpdate)
+	if (vi.y2 < bv.workHeight() && vi.update_strategy == FullScreenUpdate)
 		pain.fillRectangle(0, vi.y2, bv.workWidth(), bv.workHeight() - vi.y2, Color::bottomarea);
 }