From d8afa085aba4f6b61f29bee5e896623bb5448605 Mon Sep 17 00:00:00 2001
From: nyamatongwe <devnull@localhost>
Date: Thu, 30 Jul 2009 08:29:43 +0000
Subject: When using Ctrl+Drag for multiple selection when previous selections
 dragged over but then that area is deselected, reveal the previous selections
 again. This allows the user to undo some bad effects when the mouse moves
 further than wanted.

---
 src/Selection.cxx | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

(limited to 'src/Selection.cxx')

diff --git a/src/Selection.cxx b/src/Selection.cxx
index 246cfe709..b44d4e96c 100644
--- a/src/Selection.cxx
+++ b/src/Selection.cxx
@@ -156,7 +156,7 @@ void SelectionRange::MinimizeVirtualSpace() {
 	}
 }
 
-Selection::Selection() : mainRange(0), moveExtends(false), selType(selStream) {
+Selection::Selection() : mainRange(0), moveExtends(false), selType(selStream), tentativeMain(false) {
 	AddSelection(SelectionPosition(0));
 }
 
@@ -270,8 +270,19 @@ void Selection::AddSelection(SelectionRange range) {
 	mainRange = ranges.size() - 1;
 }
 
-void Selection::AddSelection(SelectionPosition spPos) {
-	AddSelection(SelectionRange(spPos, spPos));
+void Selection::TentativeSelection(SelectionRange range) {
+	if (!tentativeMain) {
+		rangesSaved = ranges;
+	}
+	ranges = rangesSaved;
+	AddSelection(range);
+	TrimSelection(ranges[mainRange]);
+	tentativeMain = true;
+}
+
+void Selection::CommitTentative() {
+	rangesSaved.clear();
+	tentativeMain = false;
 }
 
 int Selection::CharacterInSelection(int posCharacter) const {
-- 
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