From d8aca4b3af308eed001204846025634a77a4211f Mon Sep 17 00:00:00 2001
From: Neil <nyamatongwe@gmail.com>
Date: Tue, 14 Jan 2014 19:08:34 +1100
Subject: CallTipSetPosStart API added.

---
 doc/ScintillaDoc.html     |  6 ++++--
 doc/ScintillaHistory.html |  5 ++++-
 include/Scintilla.h       |  1 +
 include/Scintilla.iface   |  3 +++
 src/ScintillaBase.cxx     |  4 ++++
 test/simpleTests.py       | 21 +++++++++++++++++++++
 6 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/doc/ScintillaDoc.html b/doc/ScintillaDoc.html
index 2a4c1f8b7..1aaab5307 100644
--- a/doc/ScintillaDoc.html
+++ b/doc/ScintillaDoc.html
@@ -82,7 +82,7 @@
 
     <h1>Scintilla Documentation</h1>
 
-    <p>Last edited 10 January 2014 NH</p>
+    <p>Last edited 14 January 2014 NH</p>
 
     <p>There is <a class="jump" href="Design.html">an overview of the internal design of
     Scintilla</a>.<br />
@@ -4446,6 +4446,7 @@ struct Sci_TextToFind {
      <a class="message" href="#SCI_CALLTIPCANCEL">SCI_CALLTIPCANCEL</a><br />
      <a class="message" href="#SCI_CALLTIPACTIVE">SCI_CALLTIPACTIVE</a><br />
      <a class="message" href="#SCI_CALLTIPPOSSTART">SCI_CALLTIPPOSSTART</a><br />
+     <a class="message" href="#SCI_CALLTIPSETPOSSTART">SCI_CALLTIPSETPOSSTART(int posStart)</a><br />
      <a class="message" href="#SCI_CALLTIPSETHLT">SCI_CALLTIPSETHLT(int highlightStart, int
     highlightEnd)</a><br />
      <a class="message" href="#SCI_CALLTIPSETBACK">SCI_CALLTIPSETBACK(int colour)</a><br />
@@ -4481,7 +4482,8 @@ struct Sci_TextToFind {
      This returns 1 if a call tip is active and 0 if it is not active.</p>
 
     <p><b id="SCI_CALLTIPPOSSTART">SCI_CALLTIPPOSSTART</b><br />
-     This message returns the value of the current position when <code>SCI_CALLTIPSHOW</code>
+    <b id="SCI_CALLTIPSETPOSSTART">SCI_CALLTIPSETPOSSTART(int posStart)</b><br />
+     This message returns or sets the value of the current position when <code>SCI_CALLTIPSHOW</code>
     started to display the tip.</p>
 
     <p><b id="SCI_CALLTIPSETHLT">SCI_CALLTIPSETHLT(int hlStart, int hlEnd)</b><br />
diff --git a/doc/ScintillaHistory.html b/doc/ScintillaHistory.html
index ec1e76982..1a96ad1db 100644
--- a/doc/ScintillaHistory.html
+++ b/doc/ScintillaHistory.html
@@ -459,7 +459,10 @@
 	Released 12 December 2013.
 	</li>
 	<li>
-	Added DropSelectionN API to drop a selection from a multiple selection.
+	DropSelectionN API added to drop a selection from a multiple selection.
+	</li>
+	<li>
+	CallTipSetPosStart API added to change the position at which backspacing removes the calltip.
 	</li>
 	<li>
 	Basic lexer highlights hex, octal, and binary numbers in FreeBASIC which use the prefixes
diff --git a/include/Scintilla.h b/include/Scintilla.h
index 39171bad4..dda068d75 100644
--- a/include/Scintilla.h
+++ b/include/Scintilla.h
@@ -417,6 +417,7 @@ typedef sptr_t (*SciFnDirect)(sptr_t ptr, unsigned int iMessage, uptr_t wParam,
 #define SCI_CALLTIPCANCEL 2201
 #define SCI_CALLTIPACTIVE 2202
 #define SCI_CALLTIPPOSSTART 2203
+#define SCI_CALLTIPSETPOSSTART 2214
 #define SCI_CALLTIPSETHLT 2204
 #define SCI_CALLTIPSETBACK 2205
 #define SCI_CALLTIPSETFORE 2206
diff --git a/include/Scintilla.iface b/include/Scintilla.iface
index 7b38eb852..32a797251 100644
--- a/include/Scintilla.iface
+++ b/include/Scintilla.iface
@@ -1042,6 +1042,9 @@ fun bool CallTipActive=2202(,)
 # Retrieve the position where the caret was before displaying the call tip.
 fun position CallTipPosStart=2203(,)
 
+# Set the start position in order to change when backspacing removes the calltip.
+set void CallTipSetPosStart=2214(int posStart,)
+
 # Highlight a segment of the definition.
 fun void CallTipSetHlt=2204(int start, int end)
 
diff --git a/src/ScintillaBase.cxx b/src/ScintillaBase.cxx
index ad45a5ad2..7850316e9 100644
--- a/src/ScintillaBase.cxx
+++ b/src/ScintillaBase.cxx
@@ -893,6 +893,10 @@ sptr_t ScintillaBase::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lPara
 	case SCI_CALLTIPPOSSTART:
 		return ct.posStartCallTip;
 
+	case SCI_CALLTIPSETPOSSTART:
+		ct.posStartCallTip = wParam;
+		break;
+
 	case SCI_CALLTIPSETHLT:
 		ct.SetHighlight(wParam, lParam);
 		break;
diff --git a/test/simpleTests.py b/test/simpleTests.py
index 151ee33e8..3ca01f569 100644
--- a/test/simpleTests.py
+++ b/test/simpleTests.py
@@ -1803,6 +1803,27 @@ class TestSubStyles(unittest.TestCase):
 		inactiveDistance = self.ed.DistanceToSecondaryStyles()
 		self.assertEquals(self.ed.GetPrimaryStyleFromStyle(self.ed.SCE_C_IDENTIFIER+inactiveDistance), self.ed.SCE_C_IDENTIFIER)
 
+class TestCallTip(unittest.TestCase):
+
+	def setUp(self):
+		self.xite = Xite.xiteFrame
+		self.ed = self.xite.ed
+		self.ed.ClearAll()
+		self.ed.EmptyUndoBuffer()
+		# 1 line of 4 characters
+		t = b"fun("
+		self.ed.AddText(len(t), t)
+
+	def testBasics(self):
+		self.assertEquals(self.ed.CallTipActive(), 0)
+		self.ed.CallTipShow(1, "fun(int x)")
+		self.assertEquals(self.ed.CallTipActive(), 1)
+		self.assertEquals(self.ed.CallTipPosStart(), 4)
+		self.ed.CallTipSetPosStart(1)
+		self.assertEquals(self.ed.CallTipPosStart(), 1)
+		self.ed.CallTipCancel()
+		self.assertEquals(self.ed.CallTipActive(), 0)
+
 class TestAutoComplete(unittest.TestCase):
 
 	def setUp(self):
-- 
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