From 275e0c25ae6cf1568099509682417b1c8ae60911 Mon Sep 17 00:00:00 2001
From: nyamatongwe <unknown>
Date: Wed, 26 Aug 2009 10:48:18 +0000
Subject: Avoid breaking text into substrings on selection boundaries for
 drawing when the selection is empty (thus only needing a caret drawn) or when
 the selection settings do not need the text drawn as pieces such as when the
 selection is drawn translucently.

---
 src/PositionCache.cxx | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

(limited to 'src/PositionCache.cxx')

diff --git a/src/PositionCache.cxx b/src/PositionCache.cxx
index 580a1797c..fa2d581e1 100644
--- a/src/PositionCache.cxx
+++ b/src/PositionCache.cxx
@@ -386,7 +386,7 @@ static int NextBadU(const char *s, int p, int len, int &trailBytes) {
 	return -1;
 }
 
-BreakFinder::BreakFinder(LineLayout *ll_, int lineStart_, int lineEnd_, int posLineStart_, bool utf8_, int xStart) :
+BreakFinder::BreakFinder(LineLayout *ll_, int lineStart_, int lineEnd_, int posLineStart_, bool utf8_, int xStart, bool breakForSelection) :
 	ll(ll_),
 	lineStart(lineStart_),
 	lineEnd(lineEnd_),
@@ -412,13 +412,17 @@ BreakFinder::BreakFinder(LineLayout *ll_, int lineStart_, int lineEnd_, int posL
 		nextBreak--;
 	}
 
-	SelectionSegment segmentLine(SelectionPosition(posLineStart), SelectionPosition(posLineStart + lineEnd));
-	for (size_t r=0; r<ll->psel->Count(); r++) {
-		SelectionSegment portion = ll->psel->Range(r).Intersect(segmentLine);
-		if (portion.start.IsValid())
-			Insert(portion.start.Position() - posLineStart - 1);
-		if (portion.end.IsValid())
-			Insert(portion.end.Position() - posLineStart - 1);
+	if (breakForSelection) {
+		SelectionSegment segmentLine(SelectionPosition(posLineStart), SelectionPosition(posLineStart + lineEnd));
+		for (size_t r=0; r<ll->psel->Count(); r++) {
+			SelectionSegment portion = ll->psel->Range(r).Intersect(segmentLine);
+			if (!(portion.start == portion.end)) {
+				if (portion.start.IsValid())
+					Insert(portion.start.Position() - posLineStart - 1);
+				if (portion.end.IsValid())
+					Insert(portion.end.Position() - posLineStart - 1);
+			}
+		}
 	}
 
 	Insert(ll->edgeColumn - 1);
-- 
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