From e734b83b61adfe835b1db56b314d95187b295f23 Mon Sep 17 00:00:00 2001
From: Neil Hodgson <nyamatongwe@gmail.com>
Date: Sat, 14 Mar 2015 13:20:03 +1100
Subject: Fix calltip display bug on Cocoa.

---
 cocoa/ScintillaCocoa.mm | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'cocoa')

diff --git a/cocoa/ScintillaCocoa.mm b/cocoa/ScintillaCocoa.mm
index be5ec9445..45637b28a 100644
--- a/cocoa/ScintillaCocoa.mm
+++ b/cocoa/ScintillaCocoa.mm
@@ -1131,7 +1131,16 @@ void ScintillaCocoa::CallTipMouseDown(NSPoint pt) {
     CallTipClick();
 }
 
+static bool HeightDifferent(WindowID wCallTip, PRectangle rc) {
+	NSWindow *callTip = (NSWindow *)wCallTip;
+	CGFloat height = NSHeight([callTip frame]);
+	return height != rc.Height();
+}
+
 void ScintillaCocoa::CreateCallTipWindow(PRectangle rc) {
+    if (ct.wCallTip.Created() && HeightDifferent(ct.wCallTip.GetID(), rc)) {
+        ct.wCallTip.Destroy();
+    }
     if (!ct.wCallTip.Created()) {
         NSRect ctRect = NSMakeRect(rc.top,rc.bottom, rc.Width(), rc.Height());
         NSWindow *callTip = [[NSWindow alloc] initWithContentRect: ctRect
-- 
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