X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Frowpainter.C;h=2cb5b6311abefe4f6583f6b4b3edc2924fd5e762;hb=e5a46922e916a06ad1b958d5895cc3cfb4f13d2c;hp=9cfae9d44aa6c963f28958abbb9b9d5dc42629ac;hpb=ad84c0ce5d6d2e9eab9672a1a3ff26f16893196d;p=lyx.git

diff --git a/src/rowpainter.C b/src/rowpainter.C
index 9cfae9d44a..2cb5b6311a 100644
--- a/src/rowpainter.C
+++ b/src/rowpainter.C
@@ -823,20 +823,6 @@ void RowPainter::paintText()
 }
 
 
-size_type calculateRowSignature(Row const & row, Paragraph const & par,
-	int x, int y)
-{
-	boost::crc_32_type crc;
-	for (pos_type i = row.pos(); i < row.endpos(); ++i) {
-		char_type const b[] = { par.getChar(i) };
-		crc.process_bytes(b, 1);
-	}
-	char_type const b[] = { x, y, row.width() };
-	crc.process_bytes(b, 3);
-	return crc.checksum();
-}
-
-
 bool CursorOnRow(PainterInfo & pi, pit_type const pit,
 	RowList::const_iterator rit, LyXText const & text)
 {
@@ -899,8 +885,7 @@ void paintPar
 		bool tmp = refreshInside;
 
 		// Row signature; has row changed since last paint?
-		size_type const row_sig = calculateRowSignature(*rit, par, x, y);
-		bool row_has_changed = pm.rowSignature()[rowno] != row_sig;
+		bool row_has_changed = pm.rowChangeStatus()[rowno];
 
 		bool cursor_on_row = CursorOnRow(pi, pit, rit, text);
 		bool in_inset_alone_on_row = innerCursorOnRow(pi, pit, rit,
@@ -928,9 +913,6 @@ void paintPar
 		// from cache, or cursor is inside an inset _on this row_,
 		// then paint the row
 		if (repaintAll || row_has_changed || cursor_on_row) {
-			// Add to row signature cache
-			pm.rowSignature()[rowno] = row_sig;
-			
 			bool const inside = (y + rit->descent() >= 0
 				&& y - rit->ascent() < ww);
 			// it is not needed to draw on screen if we are not inside.
@@ -995,7 +977,10 @@ void paintText(BufferView & bv,
 	
 	PainterInfo pi(const_cast<BufferView *>(&bv), pain);
 	// Should the whole screen, including insets, be refreshed?
-	bool repaintAll = select || !vi.singlepar;
+	// FIXME: We should also distinguish DecorationUpdate to avoid text
+	// drawing if possible. This is not possible to do easily right now
+	// because of the single backing pixmap.
+	bool repaintAll = select || vi.update_strategy != SingleParUpdate;
 
 	if (repaintAll) {
 		// Clear background (if not delegated to rows)
@@ -1018,12 +1003,12 @@ 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.singlepar)
+	if (vi.y1 > 0 && vi.update_strategy != SingleParUpdate)
 		pain.fillRectangle(0, 0, bv.workWidth(), vi.y1, LColor::bottomarea);
 
 	// and possibly grey out below
 //	lyxerr << "par descent: " << text.getPar(vi.p1).ascent() << endl;
-	if (vi.y2 < bv.workHeight() && !vi.singlepar)
+	if (vi.y2 < bv.workHeight() && vi.update_strategy != SingleParUpdate)
 		pain.fillRectangle(0, vi.y2, bv.workWidth(), bv.workHeight() - vi.y2, LColor::bottomarea);
 }