From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Tue, 25 Feb 2003 18:44:20 +0000 (+0000)
Subject: finally fixed the flicker problem in wxTE_RICH[2] text controls when appending a... 
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/a9d3434a3bc2411f1239b9c9b373afc6b88cefc1

finally fixed the flicker problem in wxTE_RICH[2] text controls when appending a lot of text to them


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@19314 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp
index 4ba1eafe20..4d90bd0d72 100644
--- a/src/msw/textctrl.cpp
+++ b/src/msw/textctrl.cpp
@@ -914,6 +914,14 @@ void wxTextCtrl::SetInsertionPoint(long pos)
 
 void wxTextCtrl::SetInsertionPointEnd()
 {
+    // we must not do anything if the caret is already there because calling
+    // SetInsertionPoint() thaws the controls if Freeze() had been called even
+    // if it doesn't actually move the caret anywhere and so the simple fact of
+    // doing it results in horrible flicker when appending big amounts of text
+    // to the control in a few chunks (see DoAddText() test in the text sample)
+    if ( GetInsertionPoint() == GetLastPosition() )
+        return;
+
     long pos;
 
 #if wxUSE_RICHEDIT