From 2ccc6650ca6287152ad0ef48cca674a4dee6ff9b Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sat, 28 Jun 2008 18:58:07 +0000
Subject: [PATCH] support wxDP_ALLOWNONE in generic wxDatePickerCtrl (#3164)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54407 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/generic/datectlg.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/generic/datectlg.cpp b/src/generic/datectlg.cpp
index 825b162617..fc0e0ab720 100644
--- a/src/generic/datectlg.cpp
+++ b/src/generic/datectlg.cpp
@@ -116,6 +116,11 @@ public:
         }
     }
 
+    bool IsTextEmpty() const
+    {
+        return m_combo->GetTextCtrl()->IsEmpty();
+    }
+
     bool ParseDateTime(const wxString& s, wxDateTime* pDt)
     {
         wxASSERT(pDt);
@@ -435,6 +440,8 @@ wxDatePickerCtrlGeneric::SetDateRange(const wxDateTime& lowerdate,
 
 wxDateTime wxDatePickerCtrlGeneric::GetValue() const
 {
+    if ( HasFlag(wxDP_ALLOWNONE) && m_popup->IsTextEmpty() )
+        return wxInvalidDateTime;
     return m_popup->GetDate();
 }
 
-- 
2.45.2