From 253bc4cd3a19e93f7090c74af92a871765afe002 Mon Sep 17 00:00:00 2001
From: Neil <nyamatongwe@gmail.com>
Date: Sun, 2 Feb 2014 18:09:44 +1100
Subject: Added wrap mode SC_WRAP_WHITESPACE which only wraps on whitespace,
 not on style changes. From Robert Gieseke.

---
 doc/ScintillaDoc.html     | 11 ++++++-----
 doc/ScintillaHistory.html |  5 +++++
 include/Scintilla.h       |  1 +
 include/Scintilla.iface   |  1 +
 src/Editor.cxx            |  2 +-
 src/ViewStyle.cxx         |  3 +++
 src/ViewStyle.h           |  2 +-
 7 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/doc/ScintillaDoc.html b/doc/ScintillaDoc.html
index 781695a14..306df840a 100644
--- a/doc/ScintillaDoc.html
+++ b/doc/ScintillaDoc.html
@@ -5625,11 +5625,12 @@ sptr_t CallScintilla(unsigned int iMessage, uptr_t wParam, sptr_t lParam){
     <p><b id="SCI_SETWRAPMODE">SCI_SETWRAPMODE(int wrapMode)</b><br />
      <b id="SCI_GETWRAPMODE">SCI_GETWRAPMODE</b><br />
      Set wrapMode to <code>SC_WRAP_WORD</code> (1) to enable wrapping
-     on word boundaries, <code>SC_WRAP_CHAR</code> (2) to enable wrapping
-     between any characters, and to <code>SC_WRAP_NONE</code> (0) to disable line
-     wrapping. <code>SC_WRAP_CHAR</code> is preferred to
-     <code>SC_WRAP_WORD</code> for Asian languages where there is no white space
-     between words.</p>
+     on word or style boundaries, <code>SC_WRAP_CHAR</code> (2) to enable wrapping
+     between any characters, <code>SC_WRAP_WHITESPACE</code> (3) to enable
+     wrapping on whitespace, and <code>SC_WRAP_NONE</code> (0) to disable line
+     wrapping. <code>SC_WRAP_CHAR</code> is preferred for Asian languages where
+     there is no white space between words.
+    </p>
 
 
     <p><b id="SCI_SETWRAPVISUALFLAGS">SCI_SETWRAPVISUALFLAGS(int wrapVisualFlags)</b><br />
diff --git a/doc/ScintillaHistory.html b/doc/ScintillaHistory.html
index 72aad759a..43b4b8327 100644
--- a/doc/ScintillaHistory.html
+++ b/doc/ScintillaHistory.html
@@ -440,6 +440,8 @@
 	<td>felix</td>
 	<td>Christian Walther</td>
 	<td>Ebben</td>
+      </tr><tr>
+	<td>Robert Gieseke</td>
     </tr>
     </table>
     <p>
@@ -459,6 +461,9 @@
 	Released 16 March 2014.
 	</li>
 	<li>
+	Added wrap mode SC_WRAP_WHITESPACE which only wraps on whitespace, not on style changes.
+	</li>
+	<li>
 	Fix bug on Windows when resizing autocompletion list with only short strings caused the list to move.
 	</li>
     </ul>
diff --git a/include/Scintilla.h b/include/Scintilla.h
index ae1abc8e0..94a9d4b17 100644
--- a/include/Scintilla.h
+++ b/include/Scintilla.h
@@ -475,6 +475,7 @@ typedef sptr_t (*SciFnDirect)(sptr_t ptr, unsigned int iMessage, uptr_t wParam,
 #define SC_WRAP_NONE 0
 #define SC_WRAP_WORD 1
 #define SC_WRAP_CHAR 2
+#define SC_WRAP_WHITESPACE 3
 #define SCI_SETWRAPMODE 2268
 #define SCI_GETWRAPMODE 2269
 #define SC_WRAPVISUALFLAG_NONE 0x0000
diff --git a/include/Scintilla.iface b/include/Scintilla.iface
index 0728eadc0..77e932193 100644
--- a/include/Scintilla.iface
+++ b/include/Scintilla.iface
@@ -1189,6 +1189,7 @@ enu Wrap=SC_WRAP_
 val SC_WRAP_NONE=0
 val SC_WRAP_WORD=1
 val SC_WRAP_CHAR=2
+val SC_WRAP_WHITESPACE=3
 
 # Sets whether text is word wrapped.
 set void SetWrapMode=2268(int mode,)
diff --git a/src/Editor.cxx b/src/Editor.cxx
index 6694cbbb3..0f0eed80b 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -2400,7 +2400,7 @@ void Editor::LayoutLine(int line, Surface *surface, ViewStyle &vstyle, LineLayou
 						        - posLineStart;
 						p = pdoc->MovePositionOutsideChar(p + 1 + posLineStart, 1) - posLineStart;
 						continue;
-					} else if (ll->styles[p] != ll->styles[p - 1]) {
+					} else if ((vstyle.wrapState == eWrapWord) && (ll->styles[p] != ll->styles[p - 1])) {
 						lastGoodBreak = p;
 					} else if (IsSpaceOrTab(ll->chars[p - 1]) && !IsSpaceOrTab(ll->chars[p])) {
 						lastGoodBreak = p;
diff --git a/src/ViewStyle.cxx b/src/ViewStyle.cxx
index 4b82c9c05..503775dbf 100644
--- a/src/ViewStyle.cxx
+++ b/src/ViewStyle.cxx
@@ -450,6 +450,9 @@ bool ViewStyle::SetWrapState(int wrapState_) {
 	case SC_WRAP_CHAR:
 		wrapStateWanted = eWrapChar;
 		break;
+	case SC_WRAP_WHITESPACE:
+		wrapStateWanted = eWrapWhitespace;
+		break;
 	default:
 		wrapStateWanted = eWrapNone;
 		break;
diff --git a/src/ViewStyle.h b/src/ViewStyle.h
index 3fbe2d751..da8b7e141 100644
--- a/src/ViewStyle.h
+++ b/src/ViewStyle.h
@@ -56,7 +56,7 @@ enum WhiteSpaceVisibility {wsInvisible=0, wsVisibleAlways=1, wsVisibleAfterInden
 
 typedef std::map<FontSpecification, FontRealised *> FontMap;
 
-enum WrapMode { eWrapNone, eWrapWord, eWrapChar };
+enum WrapMode { eWrapNone, eWrapWord, eWrapChar, eWrapWhitespace };
 
 class ColourOptional : public ColourDesired {
 public:
-- 
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