# HG changeset patch
# User Vicente
# Date 1491085058 -36000
# Node ID a1a9cde519976fa12e46224d6cd57483bc4633ae
# Parent  67865d8e5a374e2cf9468e9b2638901342b1dca0
Added "Reverse Selected Lines" as SCI_LINEREVERSE.

diff -r 67865d8e5a37 -r a1a9cde51997 doc/ScintillaDoc.html
--- a/doc/ScintillaDoc.html	Sat Apr 01 13:30:58 2017 +1100
+++ b/doc/ScintillaDoc.html	Sun Apr 02 08:17:38 2017 +1000
@@ -5199,15 +5199,18 @@
           <td><code>SCI_DELLINERIGHT</code></td>
 
           <td><code>SCI_LINEDELETE</code></td>
-        </tr>
-
-        <tr>
+
           <td><code>SCI_LINECUT</code></td>
+        </tr>
+
+        <tr>
 
           <td><code>SCI_LINECOPY</code></td>
 
           <td><code>SCI_LINETRANSPOSE</code></td>
 
+          <td><code>SCI_LINEREVERSE</code></td>
+
           <td><code>SCI_LINEDUPLICATE</code></td>
         </tr>
 
diff -r 67865d8e5a37 -r a1a9cde51997 doc/ScintillaHistory.html
--- a/doc/ScintillaHistory.html	Sat Apr 01 13:30:58 2017 +1100
+++ b/doc/ScintillaHistory.html	Sun Apr 02 08:17:38 2017 +1000
@@ -527,6 +527,9 @@
 	Released 21 March 2017.
 	</li>
 	<li>
+	Added "Reverse Selected Lines" feature.
+	</li>
+	<li>
 	Updated case conversion and character categories to Unicode 9.
 	</li>
 	<li>
diff -r 67865d8e5a37 -r a1a9cde51997 include/Scintilla.h
--- a/include/Scintilla.h	Sat Apr 01 13:30:58 2017 +1100
+++ b/include/Scintilla.h	Sun Apr 02 08:17:38 2017 +1000
@@ -638,6 +638,7 @@
 #define SCI_LINECUT 2337
 #define SCI_LINEDELETE 2338
 #define SCI_LINETRANSPOSE 2339
+#define SCI_LINEREVERSE 2354
 #define SCI_LINEDUPLICATE 2404
 #define SCI_LOWERCASE 2340
 #define SCI_UPPERCASE 2341
diff -r 67865d8e5a37 -r a1a9cde51997 include/Scintilla.iface
--- a/include/Scintilla.iface	Sat Apr 01 13:30:58 2017 +1100
+++ b/include/Scintilla.iface	Sun Apr 02 08:17:38 2017 +1000
@@ -1614,6 +1614,9 @@
 # Switch the current line with the previous.
 fun void LineTranspose=2339(,)
 
+# Reverse order of selected lines.
+fun void LineReverse=2354(,)
+
 # Duplicate the current line.
 fun void LineDuplicate=2404(,)
 
diff -r 67865d8e5a37 -r a1a9cde51997 src/Editor.cxx
--- a/src/Editor.cxx	Sat Apr 01 13:30:58 2017 +1100
+++ b/src/Editor.cxx	Sun Apr 02 08:17:38 2017 +1000
@@ -2800,6 +2800,7 @@
 	case SCI_LINECUT:
 	case SCI_LINEDELETE:
 	case SCI_LINETRANSPOSE:
+	case SCI_LINEREVERSE:
 	case SCI_LINEDUPLICATE:
 	case SCI_LOWERCASE:
 	case SCI_UPPERCASE:
@@ -2967,6 +2968,32 @@
 	}
 }
 
+void Editor::LineReverse() {
+	const Sci::Line lineStart = pdoc->LineFromPosition(sel.RangeMain().Start().Position());
+	const Sci::Line lineEnd = pdoc->LineFromPosition(sel.RangeMain().End().Position()-1);
+	const Sci::Line lineDiff = lineEnd - lineStart;
+	if (lineDiff <= 0)
+		return;
+	UndoGroup ug(pdoc);
+	for (Sci::Line i=(lineDiff+1)/2-1; i>=0; --i) {
+		const Sci::Line lineNum2 = lineEnd - i;
+		const Sci::Line lineNum1 = lineStart + i;
+		Sci::Position lineStart2 = pdoc->LineStart(lineNum2);
+		const Sci::Position lineStart1 = pdoc->LineStart(lineNum1);
+		const std::string line2 = RangeText(lineStart2, pdoc->LineEnd(lineNum2));
+		const std::string line1 = RangeText(lineStart1, pdoc->LineEnd(lineNum1));
+		const Sci::Position lineLen2 = static_cast<Sci::Position>(line2.length());
+		const Sci::Position lineLen1 = static_cast<Sci::Position>(line1.length());
+		pdoc->DeleteChars(lineStart2, lineLen2);
+		pdoc->DeleteChars(lineStart1, lineLen1);
+		lineStart2 -= lineLen1;
+		pdoc->InsertString(lineStart2, line1.c_str(), lineLen1);
+		pdoc->InsertString(lineStart1, line2.c_str(), lineLen2);
+	}
+	// Wholly select all affected lines
+	sel.RangeMain() = SelectionRange(pdoc->LineStart(lineStart), pdoc->LineStart(lineEnd+1));
+}
+
 void Editor::Duplicate(bool forLine) {
 	if (sel.Empty()) {
 		forLine = true;
@@ -3809,6 +3836,9 @@
 	case SCI_LINETRANSPOSE:
 		LineTranspose();
 		break;
+	case SCI_LINEREVERSE:
+		LineReverse();
+		break;
 	case SCI_LINEDUPLICATE:
 		Duplicate(true);
 		break;
@@ -7453,6 +7483,7 @@
 	case SCI_LINECUT:
 	case SCI_LINEDELETE:
 	case SCI_LINETRANSPOSE:
+	case SCI_LINEREVERSE:
 	case SCI_LINEDUPLICATE:
 	case SCI_LOWERCASE:
 	case SCI_UPPERCASE:
diff -r 67865d8e5a37 -r a1a9cde51997 src/Editor.h
--- a/src/Editor.h	Sat Apr 01 13:30:58 2017 +1100
+++ b/src/Editor.h	Sun Apr 02 08:17:38 2017 +1000
@@ -460,6 +460,7 @@
 	virtual std::string CaseMapString(const std::string &s, int caseMapping);
 	void ChangeCaseOfSelection(int caseMapping);
 	void LineTranspose();
+	void LineReverse();
 	void Duplicate(bool forLine);
 	virtual void CancelModes();
 	void NewLine();