4.2

1 files changed, 35 insertions, 0 deletions

diff --git a/wx+/no_flicker.h b/wx+/no_flicker.h
new file mode 100644
index 00000000..0dceba97
--- /dev/null
+++ b/wx+/no_flicker.h
@@ -0,0 +1,35 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+
+#ifndef NO_FLICKER_HEADER_893421590321532
+#define NO_FLICKER_HEADER_893421590321532
+
+#include <wx/window.h>
+
+namespace zen
+{
+inline
+void setText(wxTextCtrl& control, const wxString& newText, bool* additionalLayoutChange = NULL)
+{
+    if (additionalLayoutChange && !*additionalLayoutChange) //never revert from true to false!
+        *additionalLayoutChange = control.GetValue().length() != newText.length(); //avoid screen flicker: update layout only when necessary
+
+    if (control.GetValue() != newText)
+        control.ChangeValue(newText);
+}
+
+inline
+void setText(wxStaticText& control, const wxString& newText, bool* additionalLayoutChange = NULL)
+{
+    if (additionalLayoutChange && !*additionalLayoutChange)
+        *additionalLayoutChange = control.GetLabel().length() != newText.length(); //avoid screen flicker: update layout only when necessary
+
+    if (control.GetLabel() != newText)
+        control.SetLabel(newText);
+}
+}
+
+#endif //NO_FLICKER_HEADER_893421590321532